diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml index 7456411..2d39231 100644 --- a/.github/workflows/main.yml +++ b/.github/workflows/main.yml @@ -7,21 +7,62 @@ jobs: matrix: include: - os: macos-latest + DIR: c++ USE_MINGW: 0 + MINGW_CC: null + USE_EMSCRIPTEN: 0 + TARGET: c++/build/libp8g++.dylib + - os: ubuntu-latest + DIR: c++ + USE_MINGW: 0 + MINGW_CC: null + USE_EMSCRIPTEN: 0 + TARGET: c++/build/libp8g++.so + - os: ubuntu-latest + DIR: c++ + USE_MINGW: 1 + MINGW_CC: x86_64-w64-mingw32-g++ + USE_EMSCRIPTEN: 0 + TARGET: c++/build/p8g++.dll + - os: ubuntu-latest + DIR: c++ + USE_MINGW: 0 + MINGW_CC: null + USE_EMSCRIPTEN: 1 + TARGET: c++/build/p8g++.wasm + - os: macos-latest + DIR: java + USE_MINGW: 0 + MINGW_CC: null + USE_EMSCRIPTEN: 0 TARGET: java/build/libio_github_bernhardfritz_p8g_Sketch.dylib - os: ubuntu-latest + DIR: java USE_MINGW: 0 + MINGW_CC: null + USE_EMSCRIPTEN: 0 TARGET: java/build/libio_github_bernhardfritz_p8g_Sketch.so - os: ubuntu-latest + DIR: java USE_MINGW: 1 + MINGW_CC: x86_64-w64-mingw32-gcc + USE_EMSCRIPTEN: 0 TARGET: java/build/io_github_bernhardfritz_p8g_Sketch.dll steps: - uses: actions/checkout@v2 - run: | - cd java + cd ${{ matrix.DIR }} if [ "${{ matrix.USE_MINGW }}" = 1 ]; then sudo apt-get install -y mingw-w64 - make CC=x86_64-w64-mingw32-gcc OS=Windows_NT JNI_MD_DIR=${JAVA_HOME}/include/linux + make CC=${{ matrix.MINGW_CC }} OS=Windows_NT JNI_MD_DIR=${JAVA_HOME}/include/linux + elif [ "${{ matrix.USE_EMSCRIPTEN }}" = 1 ]; then + git clone https://github.com/emscripten-core/emsdk.git + cd emsdk + ./emsdk install latest + ./emsdk activate latest + source ./emsdk_env.sh + cd .. + emmake make else make fi @@ -37,12 +78,13 @@ jobs: - uses: actions/checkout@v2 - uses: actions/download-artifact@v3 - run: | + mv build/libp8g++.dylib build/libp8g++.so build/p8g++.dll build/p8g++.wasm c++ mv build java cd java make build/p8g.jar rm -rf build/io rm -f build/io_github_bernhardfritz_p8g_Sketch.dll build/libio_github_bernhardfritz_p8g_Sketch.dylib build/libio_github_bernhardfritz_p8g_Sketch.so - zip -jr p8g.zip build ../c/p8g.h ../c/p8g.html ../c/p8g.wasm + zip -jr p8g.zip build ../c/p8g.h ../c/p8g.html ../c/p8g.wasm ../c++/libp8g++.dylib ../c++/libp8g++.so ../c++/p8g++.dll ../c++/p8g++.wasm ../c++/p8g.hpp - uses: softprops/action-gh-release@v1 if: startsWith(github.ref, 'refs/tags/') with: diff --git a/README.md b/README.md index 4a8e83f..cc98b88 100644 --- a/README.md +++ b/README.md @@ -12,7 +12,7 @@ | Beginner friendly | Language-agnostic | Cross-platform | | :--------------------------------------------------------------------------------------------------------------: | :--------------------------------------------------------------------------------------: | :----------------------------------------------------------------------------------------------------------------: | -| p8g has been developed for individuals interested in getting into creative programming no matter the experience. | p8g is available for both C and Java allowing further language bindings to be developed. | p8g applications can be developed on and built for all major operating systems including Windows, Linux and macOS as well as the web. | +| p8g has been developed for individuals interested in getting into creative programming no matter the experience. | p8g is available for C, C++ and Java allowing further language bindings to be developed. | p8g applications can be developed on and built for all major operating systems including Windows, Linux and macOS as well as the web. | ## Links diff --git a/c++/Makefile b/c++/Makefile new file mode 100644 index 0000000..2b5c968 --- /dev/null +++ b/c++/Makefile @@ -0,0 +1,48 @@ +ifeq ($(origin CC),default) +CC = g++ +endif +MKDIR_P ?= mkdir -p +P8G_DIR := ../c +SRC_DIR := . +_SRCS := p8g.cpp +SRCS := $(_SRCS:%=$(SRC_DIR)/%) +BUILD_DIR := build +_OBJS := $(_SRCS:%.cpp=%.o) +OBJS := $(_SRCS:%.cpp=$(BUILD_DIR)/%.o) +ifeq ($(OS),Windows_NT) + UNAME_S := Windows +else + UNAME_S := $(shell uname -s) +endif +ifeq ($(UNAME_S),Windows) + TARGET := p8g++.dll + FLAGS := -lp8g +endif +ifeq ($(UNAME_S),Linux) + TARGET := libp8g++.so + FLAGS := -lp8g -Wl,-rpath='$$ORIGIN' +endif +ifeq ($(UNAME_S),Darwin) + TARGET := libp8g++.dylib + FLAGS := -lp8g -install_name @rpath/$(TARGET) +endif +ifdef EMSCRIPTEN + TARGET := p8g++.wasm + FLAGS := ../c/p8g.wasm +endif + +$(BUILD_DIR)/%.o: $(SRC_DIR)/%.cpp + $(CC) -std=c++11 -c -fPIC $< -o $@ -I$(P8G_DIR) + +all: $(OBJS) + $(CC) $(if $(EMSCRIPTEN),-s SIDE_MODULE,-shared) -o $(BUILD_DIR)/$(TARGET) $< -L$(P8G_DIR) $(FLAGS) + +$(OBJS): | $(BUILD_DIR) + +$(BUILD_DIR): + $(MKDIR_P) $(BUILD_DIR) + +.PHONY: clean + +clean: + $(RM) -r $(BUILD_DIR) diff --git a/c++/p8g.cpp b/c++/p8g.cpp new file mode 100644 index 0000000..4b5b7bf --- /dev/null +++ b/c++/p8g.cpp @@ -0,0 +1,254 @@ +#include "p8g.hpp" + +namespace { +int colorMode; +void draw(float deltaTime) { + p8g::deltaTime = deltaTime * 1000.f; + p8g::draw(); +} +void keyPressed(int keyCode) { + p8g::keyCode = keyCode; + p8g::keyIsPressed = true; + p8g::keyPressed(); +} +void keyReleased(int keyCode) { + p8g::keyCode = keyCode; + p8g::keyIsPressed = false; + p8g::keyReleased(); +} +void mouseMoved(float mouseX, float mouseY) { + p8g::mouseX = mouseX; + p8g::mouseY = mouseY; + p8g::mouseMoved(); +} +void mousePressed(int mouseButton) { + p8g::mouseButton = mouseButton; + p8g::mouseIsPressed = true; + p8g::mousePressed(); +} +void mouseReleased(int mouseButton) { + p8g::mouseButton = mouseButton; + p8g::mouseIsPressed = false; + p8g::mouseReleased(); +} +void mouseWheel(float deltaX, float deltaY) { + p8g::mouseWheel(deltaY); +} +} + +int p8g::width, p8g::height; +int p8g::keyCode; +bool p8g::keyIsPressed; +float p8g::mouseX, p8g::mouseY; +int p8g::mouseButton; +bool p8g::mouseIsPressed; +float p8g::deltaTime; + +void p8g::draw() {} +void p8g::keyPressed() {} +void p8g::keyReleased() {} +void p8g::mouseMoved() {} +void p8g::mousePressed() {} +void p8g::mouseReleased() {} +void p8g::mouseWheel(float delta) {} + +void p8g::applyMatrix(float a, float b, float c, float d, float e, float f) { + p8g_apply_matrix(a, b, c, d, e, f); +} + +void p8g::background(float gray) { + float background[] = { gray, gray, gray, ::colorMode == p8g::RGB ? 255.f : 1.f }; + p8g_background(background); +} + +void p8g::background(float gray, float alpha) { + float background[] = { gray, gray, gray, alpha }; + p8g_background(background); +} + +void p8g::background(float v1, float v2, float v3) { + float background[] = { v1, v2, v3, ::colorMode == p8g::RGB ? 255.f : 1.f }; + p8g_background(background); +} + +void p8g::background(float v1, float v2, float v3, float alpha) { + float background[] = { v1, v2, v3, alpha }; + p8g_background(background); +} + +void p8g::background(float color[4]) { + p8g_background(color); +} + +void p8g::colorMode(int mode) { + p8g_color_mode((p8g_color_mode_t) mode); +} + +void p8g::ellipse(float x, float y, float w, float h) { + p8g_ellipse(x, y, w, h); +} + +void p8g::ellipseMode(int mode) { + p8g_ellipse_mode((p8g_ellipse_mode_t) mode); +} + +void p8g::fill(float gray) { + float fill[] = { gray, gray, gray, ::colorMode == p8g::RGB ? 255.f : 1.f }; + p8g_fill(fill); +} + +void p8g::fill(float gray, float alpha) { + float fill[] = { gray, gray, gray, alpha }; + p8g_fill(fill); +} + +void p8g::fill(float v1, float v2, float v3) { + float fill[] = { v1, v2, v3, ::colorMode == p8g::RGB ? 255.f : 1.f }; + p8g_fill(fill); +} + +void p8g::fill(float v1, float v2, float v3, float alpha) { + float fill[] = { v1, v2, v3, alpha }; + p8g_fill(fill); +} + +void p8g::fill(float color[4]) { + p8g_fill(color); +} + +void p8g::line(float x1, float y1, float x2, float y2) { + p8g_line(x1, y1, x2, y2); +} + +void p8g::noFill() { + p8g_no_fill(); +} + +void p8g::noSmooth() { + p8g_no_smooth(); +} + +void p8g::noStroke() { + p8g_no_stroke(); +} + +void p8g::point(float x, float y) { + p8g_point(x, y); +} + +void p8g::pop() { + p8g_pop(); +} + +void p8g::push() { + p8g_push(); +} + +void p8g::rect(float x, float y, float w, float h) { + p8g_rect(x, y, w, h); +} + +void p8g::rectMode(int mode) { + p8g_rect_mode((p8g_rect_mode_t) mode); +} + +void p8g::resetMatrix() { + p8g_reset_matrix(); +} + +void p8g::rotate(float angle) { + p8g_rotate(angle); +} + +void p8g::run() { + p8g_run((p8g_sketch_t) { + .draw = ::draw, + .key_pressed = ::keyPressed, + .key_released = ::keyReleased, + .mouse_moved = ::mouseMoved, + .mouse_pressed = ::mousePressed, + .mouse_released = ::mouseReleased, + .mouse_wheel = ::mouseWheel, + }); +} + +void p8g::run(int width, int height) { + p8g::width = width; + p8g::height = height; + p8g_run((p8g_sketch_t) { + .width = width, + .height = height, + .draw = ::draw, + .key_pressed = ::keyPressed, + .key_released = ::keyReleased, + .mouse_moved = ::mouseMoved, + .mouse_pressed = ::mousePressed, + .mouse_released = ::mouseReleased, + .mouse_wheel = ::mouseWheel, + }); +} + +void p8g::run(int width, int height, std::string title) { + p8g::width = width; + p8g::height = height; + p8g_run((p8g_sketch_t) { + .width = width, + .height = height, + .title = title.c_str(), + .draw = ::draw, + .key_pressed = ::keyPressed, + .key_released = ::keyReleased, + .mouse_moved = ::mouseMoved, + .mouse_pressed = ::mousePressed, + .mouse_released = ::mouseReleased, + .mouse_wheel = ::mouseWheel, + }); +} + +void p8g::scale(float s) { + p8g_scale(s, s); +} + +void p8g::scale(float x, float y) { + p8g_scale(x, y); +} + +void p8g::smooth() { + p8g_smooth(); +} + +void p8g::stroke(float gray) { + float stroke[] = { gray, gray, gray, ::colorMode == p8g::RGB ? 255.f : 1.f }; + p8g_stroke(stroke); +} + +void p8g::stroke(float gray, float alpha) { + float stroke[] = { gray, gray, gray, alpha }; + p8g_stroke(stroke); +} + +void p8g::stroke(float v1, float v2, float v3) { + float stroke[] = { v1, v2, v3, ::colorMode == p8g::RGB ? 255.f : 1.f }; + p8g_stroke(stroke); +} + +void p8g::stroke(float v1, float v2, float v3, float alpha) { + float stroke[] = { v1, v2, v3, alpha }; + p8g_stroke(stroke); +} + +void p8g::stroke(float color[4]) { + p8g_stroke(color); +} + +void p8g::strokeWeight(float weight) { + p8g_stroke_weight(weight); +} + +void p8g::translate(float x, float y) { + p8g_translate(x, y); +} + +void p8g::triangle(float x1, float y1, float x2, float y2, float x3, float y3) { + p8g_triangle(x1, y1, x2, y2, x3, y3); +} diff --git a/c++/p8g.hpp b/c++/p8g.hpp new file mode 100644 index 0000000..78a89cb --- /dev/null +++ b/c++/p8g.hpp @@ -0,0 +1,125 @@ +#ifndef P8G_HPP +#define P8G_HPP + +#include + +extern "C" { +void p8g_apply_matrix(float a, float b, float c, float d, float e, float f); +void p8g_background(float color[4]); +typedef enum { + P8G_COLOR_MODE_RGB, + P8G_COLOR_MODE_HSB, + P8G_COLOR_MODE_HSL, +} p8g_color_mode_t; +void p8g_color_mode(p8g_color_mode_t mode); +void p8g_ellipse(float x, float y, float w, float h); +typedef enum { + P8G_ELLIPSE_MODE_CORNER, + P8G_ELLIPSE_MODE_CORNERS, + P8G_ELLIPSE_MODE_RADIUS, + P8G_ELLIPSE_MODE_CENTER, +} p8g_ellipse_mode_t; +void p8g_ellipse_mode(p8g_ellipse_mode_t mode); +void p8g_fill(float color[4]); +void p8g_line(float x1, float y1, float x2, float y2); +void p8g_no_fill(void); +void p8g_no_smooth(void); +void p8g_no_stroke(void); +void p8g_point(float x, float y); +void p8g_pop(void); +void p8g_push(void); +void p8g_rect(float x, float y, float w, float h); +typedef enum { + P8G_RECT_MODE_CORNER, + P8G_RECT_MODE_CORNERS, + P8G_RECT_MODE_RADIUS, + P8G_RECT_MODE_CENTER, +} p8g_rect_mode_t; +void p8g_rect_mode(p8g_rect_mode_t mode); +void p8g_reset_matrix(void); +void p8g_rotate(float angle); +typedef struct { + int width, height; + const char* title; + int full_screen; + void (*draw)(float); + void (*key_pressed)(int); + void (*key_released)(int); + void (*mouse_moved)(float, float); + void (*mouse_pressed)(int); + void (*mouse_released)(int); + void (*mouse_wheel)(float, float); +} p8g_sketch_t; +void p8g_run(p8g_sketch_t sketch); +void p8g_scale(float x, float y); +void p8g_smooth(void); +void p8g_stroke(float color[4]); +void p8g_stroke_weight(float weight); +void p8g_translate(float x, float y); +void p8g_triangle(float x1, float y1, float x2, float y2, float x3, float y3); +} + +namespace p8g { +const int CORNER = 0; +const int CORNERS = 1; +const int RADIUS = 2; +const int CENTER = 3; +const int RGB = 0; +const int HSB = 1; +const int HSL = 2; +extern int width, height; +extern int keyCode; +extern bool keyIsPressed; +extern float mouseX, mouseY; +extern int mouseButton; +extern bool mouseIsPressed; +extern float deltaTime; +void __attribute__((weak)) draw(void); +void __attribute__((weak)) keyPressed(void); +void __attribute__((weak)) keyReleased(void); +void __attribute__((weak)) mouseMoved(void); +void __attribute__((weak)) mousePressed(void); +void __attribute__((weak)) mouseReleased(void); +void __attribute__((weak)) mouseWheel(float delta); +void applyMatrix(float a, float b, float c, float d, float e, float f); +void background(float gray); +void background(float gray, float alpha); +void background(float v1, float v2, float v3); +void background(float v1, float v2, float v3, float alpha); +void background(float color[4]); +void colorMode(int mode); +void ellipse(float x, float y, float w, float h); +void ellipseMode(int mode); +void fill(float gray); +void fill(float gray, float alpha); +void fill(float v1, float v2, float v3); +void fill(float v1, float v2, float v3, float alpha); +void fill(float color[4]); +void line(float x1, float y1, float x2, float y2); +void noFill(void); +void noSmooth(void); +void noStroke(void); +void point(float x, float y); +void pop(void); +void push(void); +void rect(float x, float y, float w, float h); +void rectMode(int mode); +void resetMatrix(void); +void rotate(float angle); +void run(void); +void run(int width, int height); +void run(int width, int height, std::string title); +void scale(float s); +void scale(float x, float y); +void smooth(void); +void stroke(float gray); +void stroke(float gray, float alpha); +void stroke(float v1, float v2, float v3); +void stroke(float v1, float v2, float v3, float alpha); +void stroke(float color[4]); +void strokeWeight(float weight); +void translate(float x, float y); +void triangle(float x1, float y1, float x2, float y2, float x3, float y3); +} + +#endif /* P8G_HPP */ diff --git a/c/p8g.dll b/c/p8g.dll index bdba34b..803de89 100644 Binary files a/c/p8g.dll and b/c/p8g.dll differ diff --git a/c/p8g.h b/c/p8g.h index e501b72..c589ab1 100644 --- a/c/p8g.h +++ b/c/p8g.h @@ -37,7 +37,7 @@ void p8g_reset_matrix(void); void p8g_rotate(float angle); typedef struct { int width, height; - char* title; + const char* title; int full_screen; void (*draw)(float); void (*key_pressed)(int); @@ -135,8 +135,6 @@ static float* _color4fv(float color[4]) { #define RGB 0 #define HSB 1 #define HSL 2 -#define RADIANS 0 -#define DEGREES 1 #define applyMatrix(a, b, c, d, e, f) p8g_apply_matrix(a, b, c, d, e, f) #define background(...) p8g_background(_color(__VA_ARGS__)) #define colorMode(mode) \ diff --git a/c/p8g.wasm b/c/p8g.wasm index ec77d19..78d5f12 100644 Binary files a/c/p8g.wasm and b/c/p8g.wasm differ diff --git a/docs/docs/examples/astar.md b/docs/docs/examples/astar.md new file mode 100644 index 0000000..ee532eb --- /dev/null +++ b/docs/docs/examples/astar.md @@ -0,0 +1,23 @@ +import Tabs from '@theme/Tabs'; +import TabItem from '@theme/TabItem'; +import CodeBlock from '@theme/CodeBlock'; +import Emscripten from '@site/src/components/Emscripten'; +import astar_cpp from '!!raw-loader!@site/static/examples/src/astar/c++/astar.cpp'; +import astar_hpp from '!!raw-loader!@site/static/examples/src/astar/c++/astar.hpp'; +import rng_cpp from '!!raw-loader!@site/static/examples/src/astar/c++/rng.cpp'; +import rng_hpp from '!!raw-loader!@site/static/examples/src/astar/c++/rng.hpp'; +import sketch_cpp from '!!raw-loader!@site/static/examples/src/astar/c++/sketch.cpp'; + +# A* + + + + + +{astar_cpp} +{astar_hpp} +{rng_cpp} +{rng_hpp} +{sketch_cpp} + + \ No newline at end of file diff --git a/docs/docs/get-started/c++.md b/docs/docs/get-started/c++.md new file mode 100644 index 0000000..b5e20b5 --- /dev/null +++ b/docs/docs/get-started/c++.md @@ -0,0 +1,117 @@ +import ThemedImage from '@theme/ThemedImage'; +import useBaseUrl from '@docusaurus/useBaseUrl'; +import Tabs from '@theme/Tabs'; +import TabItem from '@theme/TabItem'; + +# C++ + +> C++ is a general-purpose programming language created by Danish computer scientist Bjarne Stroustrup as an extension of the C programming language, or "C with Classes". The language has expanded significantly over time, and modern C++ now has object-oriented, generic, and functional features in addition to facilities for low-level memory manipulation. + +Source: https://en.wikipedia.org/wiki/C%2B%2B + +## Hello rectangle! + +```cpp title=hello_rectangle.cpp +#include "p8g.hpp" + +using namespace p8g; + +void p8g::draw() { + background(100); + rect(50, 50, 100, 100); +} + +int main() { + run(400, 400, "Hello rectangle!"); +} +``` + + + +## Build and run from the command line + + + + +``` +. +├── glfw.dll +├── hello_rectangle.cpp +├── p8g++.dll +├── p8g.dll +└── p8g.hpp +``` + +``` +g++ -std=c++11 hello_rectangle.cpp -L. -lp8g++ +.\a.exe +``` + +Tested on Windows 10 with https://sourceforge.net/projects/mingw-w64/files/Toolchains%20targetting%20Win64/Personal%20Builds/mingw-builds/8.1.0/threads-posix/seh/x86_64-8.1.0-release-posix-seh-rt_v6-rev0.7z extracted to `C:\Program Files` and `C:\Program Files\mingw64\bin` added to `PATH` environment variable. + + + + +``` +. +├── hello_rectangle.cpp +├── libglfw.3.dylib +├── libp8g++.dylib +├── libp8g.dylib +└── p8g.hpp +``` + +```bash +g++ -std=c++11 hello_rectangle.cpp -L. -lp8g++ +install_name_tool -add_rpath @executable_path/. a.out +./a.out +``` + +Tested on macOS Mojave 10.14.6 with command line tools installed via `xcode-select --install`. + + + + +``` +. +├── hello_rectangle.cpp +├── libglfw.so +├── libp8g++.so +├── libp8g.so +└── p8g.hpp +``` + +```bash +g++ -std=c++11 hello_rectangle.cpp -L. -lp8g++ -Wl,-rpath=. +./a.out +``` + +Tested on Ubuntu 20.04.3 LTS with build essentials installed via `sudo apt install build-essential`. + + + + +``` +. +├── hello_rectangle.cpp +├── p8g++.wasm +├── p8g.hpp +├── p8g.html +└── p8g.wasm +``` + +```bash +em++ -std=c++11 -s MAIN_MODULE=2 -sEXPORTED_FUNCTIONS=_main -o hello_rectangle.html hello_rectangle.cpp p8g++.wasm -L. -s MIN_WEBGL_VERSION=2 -s MAX_WEBGL_VERSION=2 -s FULL_ES3=1 -s USE_GLFW=3 --shell-file p8g.html +emrun --no_browser hello_rectangle.html +``` + +Tested on macOS Mojave 10.14.6 with Emscripten SDK 3.1.8 downloaded and installed from https://emscripten.org/docs/getting_started/downloads.html. + + + diff --git a/docs/docs/get-started/c.md b/docs/docs/get-started/c.md index f73ffdb..68944af 100644 --- a/docs/docs/get-started/c.md +++ b/docs/docs/get-started/c.md @@ -15,14 +15,13 @@ Source: https://en.wikipedia.org/wiki/C_(programming_language) #define USING_NAMESPACE_P8G #include "p8g.h" -void draw(void) { +void draw() { background(100); rect(50, 50, 100, 100); } -int main(void) { +int main() { run(400, 400, "Hello rectangle!"); - return 0; } ``` diff --git a/docs/package.json b/docs/package.json index 28dcde9..bb05527 100644 --- a/docs/package.json +++ b/docs/package.json @@ -1,6 +1,6 @@ { "name": "p8g-docs", - "version": "0.1.1", + "version": "0.4.0", "private": true, "scripts": { "docusaurus": "docusaurus", diff --git a/docs/src/components/HomepageFeatures.js b/docs/src/components/HomepageFeatures.js index 0a5d0f9..3d23d68 100644 --- a/docs/src/components/HomepageFeatures.js +++ b/docs/src/components/HomepageFeatures.js @@ -15,7 +15,7 @@ const FeatureList = [ title: 'Language-agnostic', description: ( <> - p8g is available for both C and Java allowing further language bindings to be developed. + p8g is available for C, C++ and Java allowing further language bindings to be developed. ), }, diff --git a/docs/static/examples/astar.html b/docs/static/examples/astar.html new file mode 100644 index 0000000..3e54cdd --- /dev/null +++ b/docs/static/examples/astar.html @@ -0,0 +1,228 @@ + + + + + + Emscripten-Generated Code + + + + + +
Downloading...
+ + + + + + + diff --git a/docs/static/examples/astar.js b/docs/static/examples/astar.js new file mode 100644 index 0000000..d737a36 --- /dev/null +++ b/docs/static/examples/astar.js @@ -0,0 +1,8589 @@ + + +// The Module object: Our interface to the outside world. We import +// and export values on it. There are various ways Module can be used: +// 1. Not defined. We create it here +// 2. A function parameter, function(Module) { ..generated code.. } +// 3. pre-run appended it, var Module = {}; ..generated code.. +// 4. External script tag defines var Module. +// We need to check if Module already exists (e.g. case 3 above). +// Substitution will be replaced with actual code on later stage of the build, +// this way Closure Compiler will not mangle it (e.g. case 4. above). +// Note that if you want to run closure, and also to use Module +// after the generated code, you will need to define var Module = {}; +// before the code. Then that object will be used in the code, and you +// can continue to use Module afterwards as well. +var Module = typeof Module != 'undefined' ? Module : {}; + +// See https://caniuse.com/mdn-javascript_builtins_object_assign + +// --pre-jses are emitted after the Module integration code, so that they can +// refer to Module (if they choose; they can also define Module) +// {{PRE_JSES}} + +// Sometimes an existing Module object exists with properties +// meant to overwrite the default module functionality. Here +// we collect those properties and reapply _after_ we configure +// the current environment's defaults to avoid having to be so +// defensive during initialization. +var moduleOverrides = Object.assign({}, Module); + +var arguments_ = []; +var thisProgram = './this.program'; +var quit_ = (status, toThrow) => { + throw toThrow; +}; + +// Determine the runtime environment we are in. You can customize this by +// setting the ENVIRONMENT setting at compile time (see settings.js). + +// Attempt to auto-detect the environment +var ENVIRONMENT_IS_WEB = typeof window == 'object'; +var ENVIRONMENT_IS_WORKER = typeof importScripts == 'function'; +// N.b. Electron.js environment is simultaneously a NODE-environment, but +// also a web environment. +var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string'; +var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER; + +if (Module['ENVIRONMENT']) { + throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -s ENVIRONMENT=web or -s ENVIRONMENT=node)'); +} + +// `/` should be present at the end if `scriptDirectory` is not empty +var scriptDirectory = ''; +function locateFile(path) { + if (Module['locateFile']) { + return Module['locateFile'](path, scriptDirectory); + } + return scriptDirectory + path; +} + +// Hooks that are implemented differently in different runtime environments. +var read_, + readAsync, + readBinary, + setWindowTitle; + +// Normally we don't log exceptions but instead let them bubble out the top +// level where the embedding environment (e.g. the browser) can handle +// them. +// However under v8 and node we sometimes exit the process direcly in which case +// its up to use us to log the exception before exiting. +// If we fix https://github.com/emscripten-core/emscripten/issues/15080 +// this may no longer be needed under node. +function logExceptionOnExit(e) { + if (e instanceof ExitStatus) return; + let toLog = e; + if (e && typeof e == 'object' && e.stack) { + toLog = [e, e.stack]; + } + err('exiting due to exception: ' + toLog); +} + +var fs; +var nodePath; +var requireNodeFS; + +if (ENVIRONMENT_IS_NODE) { + if (!(typeof process == 'object' && typeof require == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); + if (ENVIRONMENT_IS_WORKER) { + scriptDirectory = require('path').dirname(scriptDirectory) + '/'; + } else { + scriptDirectory = __dirname + '/'; + } + +// include: node_shell_read.js + + +requireNodeFS = () => { + // Use nodePath as the indicator for these not being initialized, + // since in some environments a global fs may have already been + // created. + if (!nodePath) { + fs = require('fs'); + nodePath = require('path'); + } +}; + +read_ = function shell_read(filename, binary) { + requireNodeFS(); + filename = nodePath['normalize'](filename); + return fs.readFileSync(filename, binary ? undefined : 'utf8'); +}; + +readBinary = (filename) => { + var ret = read_(filename, true); + if (!ret.buffer) { + ret = new Uint8Array(ret); + } + assert(ret.buffer); + return ret; +}; + +readAsync = (filename, onload, onerror) => { + requireNodeFS(); + filename = nodePath['normalize'](filename); + fs.readFile(filename, function(err, data) { + if (err) onerror(err); + else onload(data.buffer); + }); +}; + +// end include: node_shell_read.js + if (process['argv'].length > 1) { + thisProgram = process['argv'][1].replace(/\\/g, '/'); + } + + arguments_ = process['argv'].slice(2); + + if (typeof module != 'undefined') { + module['exports'] = Module; + } + + process['on']('uncaughtException', function(ex) { + // suppress ExitStatus exceptions from showing an error + if (!(ex instanceof ExitStatus)) { + throw ex; + } + }); + + // Without this older versions of node (< v15) will log unhandled rejections + // but return 0, which is not normally the desired behaviour. This is + // not be needed with node v15 and about because it is now the default + // behaviour: + // See https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode + process['on']('unhandledRejection', function(reason) { throw reason; }); + + quit_ = (status, toThrow) => { + if (keepRuntimeAlive()) { + process['exitCode'] = status; + throw toThrow; + } + logExceptionOnExit(toThrow); + process['exit'](status); + }; + + Module['inspect'] = function () { return '[Emscripten Module object]'; }; + +} else +if (ENVIRONMENT_IS_SHELL) { + + if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); + + if (typeof read != 'undefined') { + read_ = function shell_read(f) { + return read(f); + }; + } + + readBinary = function readBinary(f) { + let data; + if (typeof readbuffer == 'function') { + return new Uint8Array(readbuffer(f)); + } + data = read(f, 'binary'); + assert(typeof data == 'object'); + return data; + }; + + readAsync = function readAsync(f, onload, onerror) { + setTimeout(() => onload(readBinary(f)), 0); + }; + + if (typeof scriptArgs != 'undefined') { + arguments_ = scriptArgs; + } else if (typeof arguments != 'undefined') { + arguments_ = arguments; + } + + if (typeof quit == 'function') { + quit_ = (status, toThrow) => { + logExceptionOnExit(toThrow); + quit(status); + }; + } + + if (typeof print != 'undefined') { + // Prefer to use print/printErr where they exist, as they usually work better. + if (typeof console == 'undefined') console = /** @type{!Console} */({}); + console.log = /** @type{!function(this:Console, ...*): undefined} */ (print); + console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr != 'undefined' ? printErr : print); + } + +} else + +// Note that this includes Node.js workers when relevant (pthreads is enabled). +// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and +// ENVIRONMENT_IS_NODE. +if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) { + if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled + scriptDirectory = self.location.href; + } else if (typeof document != 'undefined' && document.currentScript) { // web + scriptDirectory = document.currentScript.src; + } + // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them. + // otherwise, slice off the final part of the url to find the script directory. + // if scriptDirectory does not contain a slash, lastIndexOf will return -1, + // and scriptDirectory will correctly be replaced with an empty string. + // If scriptDirectory contains a query (starting with ?) or a fragment (starting with #), + // they are removed because they could contain a slash. + if (scriptDirectory.indexOf('blob:') !== 0) { + scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf('/')+1); + } else { + scriptDirectory = ''; + } + + if (!(typeof window == 'object' || typeof importScripts == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)'); + + // Differentiate the Web Worker from the Node Worker case, as reading must + // be done differently. + { +// include: web_or_worker_shell_read.js + + + read_ = (url) => { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + xhr.send(null); + return xhr.responseText; + } + + if (ENVIRONMENT_IS_WORKER) { + readBinary = (url) => { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + xhr.responseType = 'arraybuffer'; + xhr.send(null); + return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response)); + }; + } + + readAsync = (url, onload, onerror) => { + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, true); + xhr.responseType = 'arraybuffer'; + xhr.onload = () => { + if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0 + onload(xhr.response); + return; + } + onerror(); + }; + xhr.onerror = onerror; + xhr.send(null); + } + +// end include: web_or_worker_shell_read.js + } + + setWindowTitle = (title) => document.title = title; +} else +{ + throw new Error('environment detection error'); +} + +var out = Module['print'] || console.log.bind(console); +var err = Module['printErr'] || console.warn.bind(console); + +// Merge back in the overrides +Object.assign(Module, moduleOverrides); +// Free the object hierarchy contained in the overrides, this lets the GC +// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array. +moduleOverrides = null; +checkIncomingModuleAPI(); + +// Emit code to handle expected values on the Module object. This applies Module.x +// to the proper local x. This has two benefits: first, we only emit it if it is +// expected to arrive, and second, by using a local everywhere else that can be +// minified. + +if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_'); + +if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram'); + +if (Module['quit']) quit_ = Module['quit'];legacyModuleProp('quit', 'quit_'); + +// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message +// Assertions on removed incoming Module JS APIs. +assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead'); +assert(typeof Module['read'] == 'undefined', 'Module.read option was removed (modify read_ in JS)'); +assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)'); +assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)'); +assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify setWindowTitle in JS)'); +assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY'); +legacyModuleProp('read', 'read_'); +legacyModuleProp('readAsync', 'readAsync'); +legacyModuleProp('readBinary', 'readBinary'); +legacyModuleProp('setWindowTitle', 'setWindowTitle'); +var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js'; +var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js'; +var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js'; +var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js'; + + +assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time. Add 'shell' to `-s ENVIRONMENT` to enable."); + + + + +var STACK_ALIGN = 16; +var POINTER_SIZE = 4; + +function getNativeTypeSize(type) { + switch (type) { + case 'i1': case 'i8': return 1; + case 'i16': return 2; + case 'i32': return 4; + case 'i64': return 8; + case 'float': return 4; + case 'double': return 8; + default: { + if (type[type.length - 1] === '*') { + return POINTER_SIZE; + } else if (type[0] === 'i') { + const bits = Number(type.substr(1)); + assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type); + return bits / 8; + } else { + return 0; + } + } + } +} + +function warnOnce(text) { + if (!warnOnce.shown) warnOnce.shown = {}; + if (!warnOnce.shown[text]) { + warnOnce.shown[text] = 1; + err(text); + } +} + +// include: runtime_functions.js + + +// Wraps a JS function as a wasm function with a given signature. +function convertJsFunctionToWasm(func, sig) { + + // If the type reflection proposal is available, use the new + // "WebAssembly.Function" constructor. + // Otherwise, construct a minimal wasm module importing the JS function and + // re-exporting it. + if (typeof WebAssembly.Function == "function") { + var typeNames = { + 'i': 'i32', + 'j': 'i64', + 'f': 'f32', + 'd': 'f64' + }; + var type = { + parameters: [], + results: sig[0] == 'v' ? [] : [typeNames[sig[0]]] + }; + for (var i = 1; i < sig.length; ++i) { + type.parameters.push(typeNames[sig[i]]); + } + return new WebAssembly.Function(type, func); + } + + // The module is static, with the exception of the type section, which is + // generated based on the signature passed in. + var typeSection = [ + 0x01, // id: section, + 0x00, // length: 0 (placeholder) + 0x01, // count: 1 + 0x60, // form: func + ]; + var sigRet = sig.slice(0, 1); + var sigParam = sig.slice(1); + var typeCodes = { + 'i': 0x7f, // i32 + 'j': 0x7e, // i64 + 'f': 0x7d, // f32 + 'd': 0x7c, // f64 + }; + + // Parameters, length + signatures + typeSection.push(sigParam.length); + for (var i = 0; i < sigParam.length; ++i) { + typeSection.push(typeCodes[sigParam[i]]); + } + + // Return values, length + signatures + // With no multi-return in MVP, either 0 (void) or 1 (anything else) + if (sigRet == 'v') { + typeSection.push(0x00); + } else { + typeSection = typeSection.concat([0x01, typeCodes[sigRet]]); + } + + // Write the overall length of the type section back into the section header + // (excepting the 2 bytes for the section id and length) + typeSection[1] = typeSection.length - 2; + + // Rest of the module is static + var bytes = new Uint8Array([ + 0x00, 0x61, 0x73, 0x6d, // magic ("\0asm") + 0x01, 0x00, 0x00, 0x00, // version: 1 + ].concat(typeSection, [ + 0x02, 0x07, // import section + // (import "e" "f" (func 0 (type 0))) + 0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00, + 0x07, 0x05, // export section + // (export "f" (func 0 (type 0))) + 0x01, 0x01, 0x66, 0x00, 0x00, + ])); + + // We can compile this wasm module synchronously because it is very small. + // This accepts an import (at "e.f"), that it reroutes to an export (at "f") + var module = new WebAssembly.Module(bytes); + var instance = new WebAssembly.Instance(module, { + 'e': { + 'f': func + } + }); + var wrappedFunc = instance.exports['f']; + return wrappedFunc; +} + +var freeTableIndexes = []; + +// Weak map of functions in the table to their indexes, created on first use. +var functionsInTableMap; + +function getEmptyTableSlot() { + // Reuse a free index if there is one, otherwise grow. + if (freeTableIndexes.length) { + return freeTableIndexes.pop(); + } + // Grow the table + try { + wasmTable.grow(1); + } catch (err) { + if (!(err instanceof RangeError)) { + throw err; + } + throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.'; + } + return wasmTable.length - 1; +} + +function updateTableMap(offset, count) { + for (var i = offset; i < offset + count; i++) { + var item = getWasmTableEntry(i); + // Ignore null values. + if (item) { + functionsInTableMap.set(item, i); + } + } +} + +/** + * Add a function to the table. + * 'sig' parameter is required if the function being added is a JS function. + * @param {string=} sig + */ +function addFunction(func, sig) { + assert(typeof func != 'undefined'); + + // Check if the function is already in the table, to ensure each function + // gets a unique index. First, create the map if this is the first use. + if (!functionsInTableMap) { + functionsInTableMap = new WeakMap(); + updateTableMap(0, wasmTable.length); + } + if (functionsInTableMap.has(func)) { + return functionsInTableMap.get(func); + } + + // It's not in the table, add it now. + + var ret = getEmptyTableSlot(); + + // Set the new value. + try { + // Attempting to call this with JS function will cause of table.set() to fail + setWasmTableEntry(ret, func); + } catch (err) { + if (!(err instanceof TypeError)) { + throw err; + } + assert(typeof sig != 'undefined', 'Missing signature argument to addFunction: ' + func); + var wrapped = convertJsFunctionToWasm(func, sig); + setWasmTableEntry(ret, wrapped); + } + + functionsInTableMap.set(func, ret); + + return ret; +} + +function removeFunction(index) { + functionsInTableMap.delete(getWasmTableEntry(index)); + freeTableIndexes.push(index); +} + +// end include: runtime_functions.js +// include: runtime_debug.js + + +function legacyModuleProp(prop, newName) { + if (!Object.getOwnPropertyDescriptor(Module, prop)) { + Object.defineProperty(Module, prop, { + configurable: true, + get: function() { + abort('Module.' + prop + ' has been replaced with plain ' + newName + ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)'); + } + }); + } +} + +function ignoredModuleProp(prop) { + if (Object.getOwnPropertyDescriptor(Module, prop)) { + abort('`Module.' + prop + '` was supplied but `' + prop + '` not included in INCOMING_MODULE_JS_API'); + } +} + +function unexportedMessage(sym, isFSSybol) { + var msg = "'" + sym + "' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)"; + if (isFSSybol) { + msg += '. Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you'; + } + return msg; +} + +function unexportedRuntimeSymbol(sym, isFSSybol) { + if (!Object.getOwnPropertyDescriptor(Module, sym)) { + Object.defineProperty(Module, sym, { + configurable: true, + get: function() { + abort(unexportedMessage(sym, isFSSybol)); + } + }); + } +} + +function unexportedRuntimeFunction(sym, isFSSybol) { + if (!Object.getOwnPropertyDescriptor(Module, sym)) { + Module[sym] = () => abort(unexportedMessage(sym, isFSSybol)); + } +} + +// end include: runtime_debug.js +var tempRet0 = 0; +var setTempRet0 = (value) => { tempRet0 = value; }; +var getTempRet0 = () => tempRet0; + + + +// === Preamble library stuff === + +// Documentation for the public APIs defined in this file must be updated in: +// site/source/docs/api_reference/preamble.js.rst +// A prebuilt local version of the documentation is available at: +// site/build/text/docs/api_reference/preamble.js.txt +// You can also build docs locally as HTML or other formats in site/ +// An online HTML version (which may be of a different version of Emscripten) +// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html + +var dynamicLibraries = Module['dynamicLibraries'] || []; + +var wasmBinary; +if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary'); +var noExitRuntime = Module['noExitRuntime'] || true;legacyModuleProp('noExitRuntime', 'noExitRuntime'); + +if (typeof WebAssembly != 'object') { + abort('no native wasm support detected'); +} + +// include: runtime_safe_heap.js + + +// In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking. +// In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties) + +/** @param {number} ptr + @param {number} value + @param {string} type + @param {number|boolean=} noSafe */ +function setValue(ptr, value, type = 'i8', noSafe) { + if (type.charAt(type.length-1) === '*') type = 'i32'; + switch (type) { + case 'i1': HEAP8[((ptr)>>0)] = value; break; + case 'i8': HEAP8[((ptr)>>0)] = value; break; + case 'i16': HEAP16[((ptr)>>1)] = value; break; + case 'i32': HEAP32[((ptr)>>2)] = value; break; + case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)] = tempI64[0],HEAP32[(((ptr)+(4))>>2)] = tempI64[1]); break; + case 'float': HEAPF32[((ptr)>>2)] = value; break; + case 'double': HEAPF64[((ptr)>>3)] = value; break; + default: abort('invalid type for setValue: ' + type); + } +} + +/** @param {number} ptr + @param {string} type + @param {number|boolean=} noSafe */ +function getValue(ptr, type = 'i8', noSafe) { + if (type.charAt(type.length-1) === '*') type = 'i32'; + switch (type) { + case 'i1': return HEAP8[((ptr)>>0)]; + case 'i8': return HEAP8[((ptr)>>0)]; + case 'i16': return HEAP16[((ptr)>>1)]; + case 'i32': return HEAP32[((ptr)>>2)]; + case 'i64': return HEAP32[((ptr)>>2)]; + case 'float': return HEAPF32[((ptr)>>2)]; + case 'double': return Number(HEAPF64[((ptr)>>3)]); + default: abort('invalid type for getValue: ' + type); + } + return null; +} + +// end include: runtime_safe_heap.js +// Wasm globals + +var wasmMemory; + +//======================================== +// Runtime essentials +//======================================== + +// whether we are quitting the application. no code should run after this. +// set in exit() and abort() +var ABORT = false; + +// set by exit() and abort(). Passed to 'onExit' handler. +// NOTE: This is also used as the process return code code in shell environments +// but only when noExitRuntime is false. +var EXITSTATUS; + +/** @type {function(*, string=)} */ +function assert(condition, text) { + if (!condition) { + abort('Assertion failed' + (text ? ': ' + text : '')); + } +} + +// Returns the C function with a specified identifier (for C++, you need to do manual name mangling) +function getCFunc(ident) { + var func = Module['_' + ident]; // closure exported function + assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported'); + return func; +} + +// C calling interface. +/** @param {string|null=} returnType + @param {Array=} argTypes + @param {Arguments|Array=} args + @param {Object=} opts */ +function ccall(ident, returnType, argTypes, args, opts) { + // For fast lookup of conversion functions + var toC = { + 'string': function(str) { + var ret = 0; + if (str !== null && str !== undefined && str !== 0) { // null string + // at most 4 bytes per UTF-8 code point, +1 for the trailing '\0' + var len = (str.length << 2) + 1; + ret = stackAlloc(len); + stringToUTF8(str, ret, len); + } + return ret; + }, + 'array': function(arr) { + var ret = stackAlloc(arr.length); + writeArrayToMemory(arr, ret); + return ret; + } + }; + + function convertReturnValue(ret) { + if (returnType === 'string') return UTF8ToString(ret); + if (returnType === 'boolean') return Boolean(ret); + return ret; + } + + var func = getCFunc(ident); + var cArgs = []; + var stack = 0; + assert(returnType !== 'array', 'Return type should not be "array".'); + if (args) { + for (var i = 0; i < args.length; i++) { + var converter = toC[argTypes[i]]; + if (converter) { + if (stack === 0) stack = stackSave(); + cArgs[i] = converter(args[i]); + } else { + cArgs[i] = args[i]; + } + } + } + var ret = func.apply(null, cArgs); + function onDone(ret) { + if (stack !== 0) stackRestore(stack); + return convertReturnValue(ret); + } + + ret = onDone(ret); + return ret; +} + +/** @param {string=} returnType + @param {Array=} argTypes + @param {Object=} opts */ +function cwrap(ident, returnType, argTypes, opts) { + return function() { + return ccall(ident, returnType, argTypes, arguments, opts); + } +} + +// We used to include malloc/free by default in the past. Show a helpful error in +// builds with assertions. + +// include: runtime_legacy.js + + +var ALLOC_NORMAL = 0; // Tries to use _malloc() +var ALLOC_STACK = 1; // Lives for the duration of the current function call + +/** + * allocate(): This function is no longer used by emscripten but is kept around to avoid + * breaking external users. + * You should normally not use allocate(), and instead allocate + * memory using _malloc()/stackAlloc(), initialize it with + * setValue(), and so forth. + * @param {(Uint8Array|Array)} slab: An array of data. + * @param {number=} allocator : How to allocate memory, see ALLOC_* + */ +function allocate(slab, allocator) { + var ret; + assert(typeof allocator == 'number', 'allocate no longer takes a type argument') + assert(typeof slab != 'number', 'allocate no longer takes a number as arg0') + + if (allocator == ALLOC_STACK) { + ret = stackAlloc(slab.length); + } else { + ret = _malloc(slab.length); + } + + if (!slab.subarray && !slab.slice) { + slab = new Uint8Array(slab); + } + HEAPU8.set(slab, ret); + return ret; +} + +// end include: runtime_legacy.js +// include: runtime_strings.js + + +// runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime. + +var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf8') : undefined; + +// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns +// a copy of that string as a Javascript String object. +/** + * heapOrArray is either a regular array, or a JavaScript typed array view. + * @param {number} idx + * @param {number=} maxBytesToRead + * @return {string} + */ +function UTF8ArrayToString(heapOrArray, idx, maxBytesToRead) { + var endIdx = idx + maxBytesToRead; + var endPtr = idx; + // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. + // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. + // (As a tiny code save trick, compare endPtr against endIdx using a negation, so that undefined means Infinity) + while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr; + + if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) { + return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr)); + } else { + var str = ''; + // If building with TextDecoder, we have already computed the string length above, so test loop end condition against that + while (idx < endPtr) { + // For UTF8 byte structure, see: + // http://en.wikipedia.org/wiki/UTF-8#Description + // https://www.ietf.org/rfc/rfc2279.txt + // https://tools.ietf.org/html/rfc3629 + var u0 = heapOrArray[idx++]; + if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; } + var u1 = heapOrArray[idx++] & 63; + if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; } + var u2 = heapOrArray[idx++] & 63; + if ((u0 & 0xF0) == 0xE0) { + u0 = ((u0 & 15) << 12) | (u1 << 6) | u2; + } else { + if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte 0x' + u0.toString(16) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!'); + u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63); + } + + if (u0 < 0x10000) { + str += String.fromCharCode(u0); + } else { + var ch = u0 - 0x10000; + str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); + } + } + } + return str; +} + +// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns a +// copy of that string as a Javascript String object. +// maxBytesToRead: an optional length that specifies the maximum number of bytes to read. You can omit +// this parameter to scan the string until the first \0 byte. If maxBytesToRead is +// passed, and the string at [ptr, ptr+maxBytesToReadr[ contains a null byte in the +// middle, then the string will cut short at that byte index (i.e. maxBytesToRead will +// not produce a string of exact length [ptr, ptr+maxBytesToRead[) +// N.B. mixing frequent uses of UTF8ToString() with and without maxBytesToRead may +// throw JS JIT optimizations off, so it is worth to consider consistently using one +// style or the other. +/** + * @param {number} ptr + * @param {number=} maxBytesToRead + * @return {string} + */ +function UTF8ToString(ptr, maxBytesToRead) { + ; + return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : ''; +} + +// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx', +// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP. +// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// heap: the array to copy to. Each index in this array is assumed to be one 8-byte element. +// outIdx: The starting offset in the array to begin the copying. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. +// This count should include the null terminator, +// i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else. +// maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) { + if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes. + return 0; + + var startIdx = outIdx; + var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator. + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description and https://www.ietf.org/rfc/rfc2279.txt and https://tools.ietf.org/html/rfc3629 + var u = str.charCodeAt(i); // possibly a lead surrogate + if (u >= 0xD800 && u <= 0xDFFF) { + var u1 = str.charCodeAt(++i); + u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF); + } + if (u <= 0x7F) { + if (outIdx >= endIdx) break; + heap[outIdx++] = u; + } else if (u <= 0x7FF) { + if (outIdx + 1 >= endIdx) break; + heap[outIdx++] = 0xC0 | (u >> 6); + heap[outIdx++] = 0x80 | (u & 63); + } else if (u <= 0xFFFF) { + if (outIdx + 2 >= endIdx) break; + heap[outIdx++] = 0xE0 | (u >> 12); + heap[outIdx++] = 0x80 | ((u >> 6) & 63); + heap[outIdx++] = 0x80 | (u & 63); + } else { + if (outIdx + 3 >= endIdx) break; + if (u > 0x10FFFF) warnOnce('Invalid Unicode code point 0x' + u.toString(16) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).'); + heap[outIdx++] = 0xF0 | (u >> 18); + heap[outIdx++] = 0x80 | ((u >> 12) & 63); + heap[outIdx++] = 0x80 | ((u >> 6) & 63); + heap[outIdx++] = 0x80 | (u & 63); + } + } + // Null-terminate the pointer to the buffer. + heap[outIdx] = 0; + return outIdx - startIdx; +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP. +// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF8(str, outPtr, maxBytesToWrite) { + assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'); + return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite); +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte. +function lengthBytesUTF8(str) { + var len = 0; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var u = str.charCodeAt(i); // possibly a lead surrogate + if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF); + if (u <= 0x7F) ++len; + else if (u <= 0x7FF) len += 2; + else if (u <= 0xFFFF) len += 3; + else len += 4; + } + return len; +} + +// end include: runtime_strings.js +// include: runtime_strings_extra.js + + +// runtime_strings_extra.js: Strings related runtime functions that are available only in regular runtime. + +// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns +// a copy of that string as a Javascript String object. + +function AsciiToString(ptr) { + var str = ''; + while (1) { + var ch = HEAPU8[((ptr++)>>0)]; + if (!ch) return str; + str += String.fromCharCode(ch); + } +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP. + +function stringToAscii(str, outPtr) { + return writeAsciiToMemory(str, outPtr, false); +} + +// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns +// a copy of that string as a Javascript String object. + +var UTF16Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf-16le') : undefined; + +function UTF16ToString(ptr, maxBytesToRead) { + assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!'); + var endPtr = ptr; + // TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself. + // Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage. + var idx = endPtr >> 1; + var maxIdx = idx + maxBytesToRead / 2; + // If maxBytesToRead is not passed explicitly, it will be undefined, and this + // will always evaluate to true. This saves on code size. + while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx; + endPtr = idx << 1; + + if (endPtr - ptr > 32 && UTF16Decoder) { + return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr)); + } else { + var str = ''; + + // If maxBytesToRead is not passed explicitly, it will be undefined, and the for-loop's condition + // will always evaluate to true. The loop is then terminated on the first null char. + for (var i = 0; !(i >= maxBytesToRead / 2); ++i) { + var codeUnit = HEAP16[(((ptr)+(i*2))>>1)]; + if (codeUnit == 0) break; + // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through. + str += String.fromCharCode(codeUnit); + } + + return str; + } +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP. +// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// outPtr: Byte address in Emscripten HEAP where to write the string to. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null +// terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else. +// maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF16(str, outPtr, maxBytesToWrite) { + assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!'); + assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'); + // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. + if (maxBytesToWrite === undefined) { + maxBytesToWrite = 0x7FFFFFFF; + } + if (maxBytesToWrite < 2) return 0; + maxBytesToWrite -= 2; // Null terminator. + var startPtr = outPtr; + var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length; + for (var i = 0; i < numCharsToWrite; ++i) { + // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP. + var codeUnit = str.charCodeAt(i); // possibly a lead surrogate + HEAP16[((outPtr)>>1)] = codeUnit; + outPtr += 2; + } + // Null-terminate the pointer to the HEAP. + HEAP16[((outPtr)>>1)] = 0; + return outPtr - startPtr; +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. + +function lengthBytesUTF16(str) { + return str.length*2; +} + +function UTF32ToString(ptr, maxBytesToRead) { + assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!'); + var i = 0; + + var str = ''; + // If maxBytesToRead is not passed explicitly, it will be undefined, and this + // will always evaluate to true. This saves on code size. + while (!(i >= maxBytesToRead / 4)) { + var utf32 = HEAP32[(((ptr)+(i*4))>>2)]; + if (utf32 == 0) break; + ++i; + // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + if (utf32 >= 0x10000) { + var ch = utf32 - 0x10000; + str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF)); + } else { + str += String.fromCharCode(utf32); + } + } + return str; +} + +// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr', +// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP. +// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write. +// Parameters: +// str: the Javascript string to copy. +// outPtr: Byte address in Emscripten HEAP where to write the string to. +// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null +// terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else. +// maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator. +// Returns the number of bytes written, EXCLUDING the null terminator. + +function stringToUTF32(str, outPtr, maxBytesToWrite) { + assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!'); + assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!'); + // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed. + if (maxBytesToWrite === undefined) { + maxBytesToWrite = 0x7FFFFFFF; + } + if (maxBytesToWrite < 4) return 0; + var startPtr = outPtr; + var endPtr = startPtr + maxBytesToWrite - 4; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var codeUnit = str.charCodeAt(i); // possibly a lead surrogate + if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) { + var trailSurrogate = str.charCodeAt(++i); + codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF); + } + HEAP32[((outPtr)>>2)] = codeUnit; + outPtr += 4; + if (outPtr + 4 > endPtr) break; + } + // Null-terminate the pointer to the HEAP. + HEAP32[((outPtr)>>2)] = 0; + return outPtr - startPtr; +} + +// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte. + +function lengthBytesUTF32(str) { + var len = 0; + for (var i = 0; i < str.length; ++i) { + // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap. + // See http://unicode.org/faq/utf_bom.html#utf16-3 + var codeUnit = str.charCodeAt(i); + if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate. + len += 4; + } + + return len; +} + +// Allocate heap space for a JS string, and write it there. +// It is the responsibility of the caller to free() that memory. +function allocateUTF8(str) { + var size = lengthBytesUTF8(str) + 1; + var ret = _malloc(size); + if (ret) stringToUTF8Array(str, HEAP8, ret, size); + return ret; +} + +// Allocate stack space for a JS string, and write it there. +function allocateUTF8OnStack(str) { + var size = lengthBytesUTF8(str) + 1; + var ret = stackAlloc(size); + stringToUTF8Array(str, HEAP8, ret, size); + return ret; +} + +// Deprecated: This function should not be called because it is unsafe and does not provide +// a maximum length limit of how many bytes it is allowed to write. Prefer calling the +// function stringToUTF8Array() instead, which takes in a maximum length that can be used +// to be secure from out of bounds writes. +/** @deprecated + @param {boolean=} dontAddNull */ +function writeStringToMemory(string, buffer, dontAddNull) { + warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!'); + + var /** @type {number} */ lastChar, /** @type {number} */ end; + if (dontAddNull) { + // stringToUTF8Array always appends null. If we don't want to do that, remember the + // character that existed at the location where the null will be placed, and restore + // that after the write (below). + end = buffer + lengthBytesUTF8(string); + lastChar = HEAP8[end]; + } + stringToUTF8(string, buffer, Infinity); + if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character. +} + +function writeArrayToMemory(array, buffer) { + assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)') + HEAP8.set(array, buffer); +} + +/** @param {boolean=} dontAddNull */ +function writeAsciiToMemory(str, buffer, dontAddNull) { + for (var i = 0; i < str.length; ++i) { + assert(str.charCodeAt(i) === (str.charCodeAt(i) & 0xff)); + HEAP8[((buffer++)>>0)] = str.charCodeAt(i); + } + // Null-terminate the pointer to the HEAP. + if (!dontAddNull) HEAP8[((buffer)>>0)] = 0; +} + +// end include: runtime_strings_extra.js +// Memory management + +var HEAP, +/** @type {!ArrayBuffer} */ + buffer, +/** @type {!Int8Array} */ + HEAP8, +/** @type {!Uint8Array} */ + HEAPU8, +/** @type {!Int16Array} */ + HEAP16, +/** @type {!Uint16Array} */ + HEAPU16, +/** @type {!Int32Array} */ + HEAP32, +/** @type {!Uint32Array} */ + HEAPU32, +/** @type {!Float32Array} */ + HEAPF32, +/** @type {!Float64Array} */ + HEAPF64; + +function updateGlobalBufferAndViews(buf) { + buffer = buf; + Module['HEAP8'] = HEAP8 = new Int8Array(buf); + Module['HEAP16'] = HEAP16 = new Int16Array(buf); + Module['HEAP32'] = HEAP32 = new Int32Array(buf); + Module['HEAPU8'] = HEAPU8 = new Uint8Array(buf); + Module['HEAPU16'] = HEAPU16 = new Uint16Array(buf); + Module['HEAPU32'] = HEAPU32 = new Uint32Array(buf); + Module['HEAPF32'] = HEAPF32 = new Float32Array(buf); + Module['HEAPF64'] = HEAPF64 = new Float64Array(buf); +} + +var TOTAL_STACK = 5242880; +if (Module['TOTAL_STACK']) assert(TOTAL_STACK === Module['TOTAL_STACK'], 'the stack size can no longer be determined at runtime') + +var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216;legacyModuleProp('INITIAL_MEMORY', 'INITIAL_MEMORY'); + +assert(INITIAL_MEMORY >= TOTAL_STACK, 'INITIAL_MEMORY should be larger than TOTAL_STACK, was ' + INITIAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')'); + +// check for full engine support (use string 'subarray' to avoid closure compiler confusion) +assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined, + 'JS engine does not provide full typed array support'); + +// In non-standalone/normal mode, we create the memory here. +// include: runtime_init_memory.js + + +// Create the wasm memory. (Note: this only applies if IMPORTED_MEMORY is defined) + + if (Module['wasmMemory']) { + wasmMemory = Module['wasmMemory']; + } else + { + wasmMemory = new WebAssembly.Memory({ + 'initial': INITIAL_MEMORY / 65536, + 'maximum': INITIAL_MEMORY / 65536 + }); + } + +if (wasmMemory) { + buffer = wasmMemory.buffer; +} + +// If the user provides an incorrect length, just use that length instead rather than providing the user to +// specifically provide the memory length with Module['INITIAL_MEMORY']. +INITIAL_MEMORY = buffer.byteLength; +assert(INITIAL_MEMORY % 65536 === 0); +updateGlobalBufferAndViews(buffer); + +// end include: runtime_init_memory.js + +// include: runtime_init_table.js +// In RELOCATABLE mode we create the table in JS. +var wasmTable = new WebAssembly.Table({ + 'initial': 28, + 'element': 'anyfunc' +}); + +// end include: runtime_init_table.js +// include: runtime_stack_check.js + + +// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode. +function writeStackCookie() { + var max = _emscripten_stack_get_end(); + assert((max & 3) == 0); + // The stack grow downwards towards _emscripten_stack_get_end. + // We write cookies to the final two words in the stack and detect if they are + // ever overwritten. + HEAP32[((max)>>2)] = 0x2135467; + HEAP32[(((max)+(4))>>2)] = 0x89BACDFE; + // Also test the global address 0 for integrity. + HEAP32[0] = 0x63736d65; /* 'emsc' */ +} + +function checkStackCookie() { + if (ABORT) return; + var max = _emscripten_stack_get_end(); + var cookie1 = HEAPU32[((max)>>2)]; + var cookie2 = HEAPU32[(((max)+(4))>>2)]; + if (cookie1 != 0x2135467 || cookie2 != 0x89BACDFE) { + abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x2135467, but received 0x' + cookie2.toString(16) + ' 0x' + cookie1.toString(16)); + } + // Also test the global address 0 for integrity. + if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) abort('Runtime error: The application has corrupted its heap memory area (address zero)!'); +} + +// end include: runtime_stack_check.js +// include: runtime_assertions.js + + +// Endianness check +(function() { + var h16 = new Int16Array(1); + var h8 = new Int8Array(h16.buffer); + h16[0] = 0x6373; + if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -s SUPPORT_BIG_ENDIAN=1 to bypass)'; +})(); + +// end include: runtime_assertions.js +var __ATPRERUN__ = []; // functions called before the runtime is initialized +var __ATINIT__ = []; // functions called during startup +var __ATMAIN__ = []; // functions called when main() is to be run +var __ATEXIT__ = []; // functions called during shutdown +var __ATPOSTRUN__ = []; // functions called after the main() is called + +var runtimeInitialized = false; + +function keepRuntimeAlive() { + return noExitRuntime; +} + +function preRun() { + + if (Module['preRun']) { + if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']]; + while (Module['preRun'].length) { + addOnPreRun(Module['preRun'].shift()); + } + } + + callRuntimeCallbacks(__ATPRERUN__); +} + +function initRuntime() { + checkStackCookie(); + assert(!runtimeInitialized); + runtimeInitialized = true; + + +if (!Module["noFSInit"] && !FS.init.initialized) + FS.init(); +FS.ignorePermissions = false; + +TTY.init(); + callRuntimeCallbacks(__ATINIT__); +} + +function preMain() { + checkStackCookie(); + + callRuntimeCallbacks(__ATMAIN__); +} + +function postRun() { + checkStackCookie(); + + if (Module['postRun']) { + if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']]; + while (Module['postRun'].length) { + addOnPostRun(Module['postRun'].shift()); + } + } + + callRuntimeCallbacks(__ATPOSTRUN__); +} + +function addOnPreRun(cb) { + __ATPRERUN__.unshift(cb); +} + +function addOnInit(cb) { + __ATINIT__.unshift(cb); +} + +function addOnPreMain(cb) { + __ATMAIN__.unshift(cb); +} + +function addOnExit(cb) { +} + +function addOnPostRun(cb) { + __ATPOSTRUN__.unshift(cb); +} + +// include: runtime_math.js + + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32 + +// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc + +assert(Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); +assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill'); + +// end include: runtime_math.js +// A counter of dependencies for calling run(). If we need to +// do asynchronous work before running, increment this and +// decrement it. Incrementing must happen in a place like +// Module.preRun (used by emcc to add file preloading). +// Note that you can add dependencies in preRun, even though +// it happens right before run - run will be postponed until +// the dependencies are met. +var runDependencies = 0; +var runDependencyWatcher = null; +var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled +var runDependencyTracking = {}; + +function getUniqueRunDependency(id) { + var orig = id; + while (1) { + if (!runDependencyTracking[id]) return id; + id = orig + Math.random(); + } +} + +function addRunDependency(id) { + runDependencies++; + + if (Module['monitorRunDependencies']) { + Module['monitorRunDependencies'](runDependencies); + } + + if (id) { + assert(!runDependencyTracking[id]); + runDependencyTracking[id] = 1; + if (runDependencyWatcher === null && typeof setInterval != 'undefined') { + // Check for missing dependencies every few seconds + runDependencyWatcher = setInterval(function() { + if (ABORT) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + return; + } + var shown = false; + for (var dep in runDependencyTracking) { + if (!shown) { + shown = true; + err('still waiting on run dependencies:'); + } + err('dependency: ' + dep); + } + if (shown) { + err('(end of list)'); + } + }, 10000); + } + } else { + err('warning: run dependency added without ID'); + } +} + +function removeRunDependency(id) { + runDependencies--; + + if (Module['monitorRunDependencies']) { + Module['monitorRunDependencies'](runDependencies); + } + + if (id) { + assert(runDependencyTracking[id]); + delete runDependencyTracking[id]; + } else { + err('warning: run dependency removed without ID'); + } + if (runDependencies == 0) { + if (runDependencyWatcher !== null) { + clearInterval(runDependencyWatcher); + runDependencyWatcher = null; + } + if (dependenciesFulfilled) { + var callback = dependenciesFulfilled; + dependenciesFulfilled = null; + callback(); // can add another dependenciesFulfilled + } + } +} + +Module["preloadedImages"] = {}; // maps url to image data +Module["preloadedAudios"] = {}; // maps url to audio data +Module["preloadedWasm"] = {}; // maps url to wasm instance exports + +/** @param {string|number=} what */ +function abort(what) { + { + if (Module['onAbort']) { + Module['onAbort'](what); + } + } + + what = 'Aborted(' + what + ')'; + // TODO(sbc): Should we remove printing and leave it up to whoever + // catches the exception? + err(what); + + ABORT = true; + EXITSTATUS = 1; + + // Use a wasm runtime error, because a JS error might be seen as a foreign + // exception, which means we'd run destructors on it. We need the error to + // simply make the program stop. + + // Suppress closure compiler warning here. Closure compiler's builtin extern + // defintion for WebAssembly.RuntimeError claims it takes no arguments even + // though it can. + // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed. + + /** @suppress {checkTypes} */ + var e = new WebAssembly.RuntimeError(what); + + // Throw the error whether or not MODULARIZE is set because abort is used + // in code paths apart from instantiation where an exception is expected + // to be thrown when abort is called. + throw e; +} + +// {{MEM_INITIALIZER}} + +// include: memoryprofiler.js + + +// end include: memoryprofiler.js +// include: URIUtils.js + + +// Prefix of data URIs emitted by SINGLE_FILE and related options. +var dataURIPrefix = 'data:application/octet-stream;base64,'; + +// Indicates whether filename is a base64 data URI. +function isDataURI(filename) { + // Prefix of data URIs emitted by SINGLE_FILE and related options. + return filename.startsWith(dataURIPrefix); +} + +// Indicates whether filename is delivered via file protocol (as opposed to http/https) +function isFileURI(filename) { + return filename.startsWith('file://'); +} + +// end include: URIUtils.js +/** @param {boolean=} fixedasm */ +function createExportWrapper(name, fixedasm) { + return function() { + var displayName = name; + var asm = fixedasm; + if (!fixedasm) { + asm = Module['asm']; + } + assert(runtimeInitialized, 'native function `' + displayName + '` called before runtime initialization'); + if (!asm[name]) { + assert(asm[name], 'exported native function `' + displayName + '` not found'); + } + return asm[name].apply(null, arguments); + }; +} + +var wasmBinaryFile; + wasmBinaryFile = 'astar.wasm'; + if (!isDataURI(wasmBinaryFile)) { + wasmBinaryFile = locateFile(wasmBinaryFile); + } + +function getBinary(file) { + try { + if (file == wasmBinaryFile && wasmBinary) { + return new Uint8Array(wasmBinary); + } + if (readBinary) { + return readBinary(file); + } else { + throw "both async and sync fetching of the wasm failed"; + } + } + catch (err) { + abort(err); + } +} + +function getBinaryPromise() { + // If we don't have the binary yet, try to to load it asynchronously. + // Fetch has some additional restrictions over XHR, like it can't be used on a file:// url. + // See https://github.com/github/fetch/pull/92#issuecomment-140665932 + // Cordova or Electron apps are typically loaded from a file:// url. + // So use fetch if it is available and the url is not a file, otherwise fall back to XHR. + if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) { + if (typeof fetch == 'function' + && !isFileURI(wasmBinaryFile) + ) { + return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) { + if (!response['ok']) { + throw "failed to load wasm binary file at '" + wasmBinaryFile + "'"; + } + return response['arrayBuffer'](); + }).catch(function () { + return getBinary(wasmBinaryFile); + }); + } + else { + if (readAsync) { + // fetch is not available or url is file => try XHR (readAsync uses XHR internally) + return new Promise(function(resolve, reject) { + readAsync(wasmBinaryFile, function(response) { resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))) }, reject) + }); + } + } + } + + // Otherwise, getBinary should be able to get it synchronously + return Promise.resolve().then(function() { return getBinary(wasmBinaryFile); }); +} + +// Create the wasm instance. +// Receives the wasm imports, returns the exports. +function createWasm() { + // prepare imports + var info = { + 'env': asmLibraryArg, + 'wasi_snapshot_preview1': asmLibraryArg, + 'GOT.mem': new Proxy(asmLibraryArg, GOTHandler), + 'GOT.func': new Proxy(asmLibraryArg, GOTHandler), + }; + // Load the wasm module and create an instance of using native support in the JS engine. + // handle a generated wasm instance, receiving its exports and + // performing other necessary setup + /** @param {WebAssembly.Module=} module*/ + function receiveInstance(instance, module) { + var exports = instance.exports; + + exports = relocateExports(exports, 1024); + + Module['asm'] = exports; + + var metadata = getDylinkMetadata(module); + if (metadata.neededDynlibs) { + dynamicLibraries = metadata.neededDynlibs.concat(dynamicLibraries); + } + mergeLibSymbols(exports, 'main') + + addOnInit(Module['asm']['__wasm_call_ctors']); + + removeRunDependency('wasm-instantiate'); + + } + // we can't run yet (except in a pthread, where we have a custom sync instantiator) + addRunDependency('wasm-instantiate'); + + // Prefer streaming instantiation if available. + // Async compilation can be confusing when an error on the page overwrites Module + // (for example, if the order of elements is wrong, and the one defining Module is + // later), so we save Module and check it later. + var trueModule = Module; + function receiveInstantiationResult(result) { + // 'result' is a ResultObject object which has both the module and instance. + // receiveInstance() will swap in the exports (to Module.asm) so they can be called + assert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?'); + trueModule = null; + receiveInstance(result['instance'], result['module']); + } + + function instantiateArrayBuffer(receiver) { + return getBinaryPromise().then(function(binary) { + return WebAssembly.instantiate(binary, info); + }).then(function (instance) { + return instance; + }).then(receiver, function(reason) { + err('failed to asynchronously prepare wasm: ' + reason); + + // Warn on some common problems. + if (isFileURI(wasmBinaryFile)) { + err('warning: Loading from a file URI (' + wasmBinaryFile + ') is not supported in most browsers. See https://emscripten.org/docs/getting_started/FAQ.html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing'); + } + abort(reason); + }); + } + + function instantiateAsync() { + if (!wasmBinary && + typeof WebAssembly.instantiateStreaming == 'function' && + !isDataURI(wasmBinaryFile) && + // Don't use streaming for file:// delivered objects in a webview, fetch them synchronously. + !isFileURI(wasmBinaryFile) && + typeof fetch == 'function') { + return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) { + // Suppress closure warning here since the upstream definition for + // instantiateStreaming only allows Promise rather than + // an actual Response. + // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure is fixed. + /** @suppress {checkTypes} */ + var result = WebAssembly.instantiateStreaming(response, info); + + return result.then( + receiveInstantiationResult, + function(reason) { + // We expect the most common failure cause to be a bad MIME type for the binary, + // in which case falling back to ArrayBuffer instantiation should work. + err('wasm streaming compile failed: ' + reason); + err('falling back to ArrayBuffer instantiation'); + return instantiateArrayBuffer(receiveInstantiationResult); + }); + }); + } else { + return instantiateArrayBuffer(receiveInstantiationResult); + } + } + + // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback + // to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel + // to any other async startup actions they are performing. + // Also pthreads and wasm workers initialize the wasm instance through this path. + if (Module['instantiateWasm']) { + try { + var exports = Module['instantiateWasm'](info, receiveInstance); + return exports; + } catch(e) { + err('Module.instantiateWasm callback failed with error: ' + e); + return false; + } + } + + instantiateAsync(); + return {}; // no exports yet; we'll fill them in later +} + +// Globals used by JS i64 conversions (see makeSetValue) +var tempDouble; +var tempI64; + +// === Body === + +var ASM_CONSTS = { + +}; + + + + + + + var GOT = {}; + var GOTHandler = {get:function(obj, symName) { + if (!GOT[symName]) { + GOT[symName] = new WebAssembly.Global({'value': 'i32', 'mutable': true}); + } + return GOT[symName] + }}; + + function callRuntimeCallbacks(callbacks) { + while (callbacks.length > 0) { + var callback = callbacks.shift(); + if (typeof callback == 'function') { + callback(Module); // Pass the module as the first argument. + continue; + } + var func = callback.func; + if (typeof func == 'number') { + if (callback.arg === undefined) { + // Run the wasm function ptr with signature 'v'. If no function + // with such signature was exported, this call does not need + // to be emitted (and would confuse Closure) + getWasmTableEntry(func)(); + } else { + // If any function with signature 'vi' was exported, run + // the callback with that signature. + getWasmTableEntry(func)(callback.arg); + } + } else { + func(callback.arg === undefined ? null : callback.arg); + } + } + } + + function withStackSave(f) { + var stack = stackSave(); + var ret = f(); + stackRestore(stack); + return ret; + } + function demangle(func) { + warnOnce('warning: build with -s DEMANGLE_SUPPORT=1 to link in libcxxabi demangling'); + return func; + } + + function demangleAll(text) { + var regex = + /\b_Z[\w\d_]+/g; + return text.replace(regex, + function(x) { + var y = demangle(x); + return x === y ? x : (y + ' [' + x + ']'); + }); + } + + function getDylinkMetadata(binary) { + var offset = 0; + var end = 0; + + function getU8() { + return binary[offset++]; + } + + function getLEB() { + var ret = 0; + var mul = 1; + while (1) { + var byte = binary[offset++]; + ret += ((byte & 0x7f) * mul); + mul *= 0x80; + if (!(byte & 0x80)) break; + } + return ret; + } + + function getString() { + var len = getLEB(); + offset += len; + return UTF8ArrayToString(binary, offset - len, len); + } + + /** @param {string=} message */ + function failIf(condition, message) { + if (condition) throw new Error(message); + } + + var name = 'dylink.0'; + if (binary instanceof WebAssembly.Module) { + var dylinkSection = WebAssembly.Module.customSections(binary, name); + if (dylinkSection.length === 0) { + name = 'dylink' + dylinkSection = WebAssembly.Module.customSections(binary, name); + } + failIf(dylinkSection.length === 0, 'need dylink section'); + binary = new Uint8Array(dylinkSection[0]); + end = binary.length + } else { + var int32View = new Uint32Array(new Uint8Array(binary.subarray(0, 24)).buffer); + var magicNumberFound = int32View[0] == 0x6d736100; + failIf(!magicNumberFound, 'need to see wasm magic number'); // \0asm + // we should see the dylink custom section right after the magic number and wasm version + failIf(binary[8] !== 0, 'need the dylink section to be first') + offset = 9; + var section_size = getLEB(); //section size + end = offset + section_size; + name = getString(); + } + + var customSection = { neededDynlibs: [], tlsExports: {} }; + if (name == 'dylink') { + customSection.memorySize = getLEB(); + customSection.memoryAlign = getLEB(); + customSection.tableSize = getLEB(); + customSection.tableAlign = getLEB(); + // shared libraries this module needs. We need to load them first, so that + // current module could resolve its imports. (see tools/shared.py + // WebAssembly.make_shared_library() for "dylink" section extension format) + var neededDynlibsCount = getLEB(); + for (var i = 0; i < neededDynlibsCount; ++i) { + var libname = getString(); + customSection.neededDynlibs.push(libname); + } + } else { + failIf(name !== 'dylink.0'); + var WASM_DYLINK_MEM_INFO = 0x1; + var WASM_DYLINK_NEEDED = 0x2; + var WASM_DYLINK_EXPORT_INFO = 0x3; + var WASM_SYMBOL_TLS = 0x100; + while (offset < end) { + var subsectionType = getU8(); + var subsectionSize = getLEB(); + if (subsectionType === WASM_DYLINK_MEM_INFO) { + customSection.memorySize = getLEB(); + customSection.memoryAlign = getLEB(); + customSection.tableSize = getLEB(); + customSection.tableAlign = getLEB(); + } else if (subsectionType === WASM_DYLINK_NEEDED) { + var neededDynlibsCount = getLEB(); + for (var i = 0; i < neededDynlibsCount; ++i) { + libname = getString(); + customSection.neededDynlibs.push(libname); + } + } else if (subsectionType === WASM_DYLINK_EXPORT_INFO) { + var count = getLEB(); + while (count--) { + var symname = getString(); + var flags = getLEB(); + if (flags & WASM_SYMBOL_TLS) { + customSection.tlsExports[symname] = 1; + } + } + } else { + err('unknown dylink.0 subsection: ' + subsectionType) + // unknown subsection + offset += subsectionSize; + } + } + } + + var tableAlign = Math.pow(2, customSection.tableAlign); + assert(tableAlign === 1, 'invalid tableAlign ' + tableAlign); + assert(offset == end); + + return customSection; + } + + var wasmTableMirror = []; + function getWasmTableEntry(funcPtr) { + var func = wasmTableMirror[funcPtr]; + if (!func) { + if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1; + wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr); + } + assert(wasmTable.get(funcPtr) == func, "JavaScript-side Wasm function table mirror is out of date!"); + return func; + } + + function handleException(e) { + // Certain exception types we do not treat as errors since they are used for + // internal control flow. + // 1. ExitStatus, which is thrown by exit() + // 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others + // that wish to return to JS event loop. + if (e instanceof ExitStatus || e == 'unwind') { + return EXITSTATUS; + } + quit_(1, e); + } + + function jsStackTrace() { + var error = new Error(); + if (!error.stack) { + // IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown, + // so try that as a special-case. + try { + throw new Error(); + } catch(e) { + error = e; + } + if (!error.stack) { + return '(no stack trace available)'; + } + } + return error.stack.toString(); + } + + function asmjsMangle(x) { + var unmangledSymbols = ['stackAlloc','stackSave','stackRestore']; + return x.indexOf('dynCall_') == 0 || unmangledSymbols.includes(x) ? x : '_' + x; + } + function mergeLibSymbols(exports, libName) { + // add symbols into global namespace TODO: weak linking etc. + for (var sym in exports) { + if (!exports.hasOwnProperty(sym)) { + continue; + } + + // When RTLD_GLOBAL is enable, the symbols defined by this shared object will be made + // available for symbol resolution of subsequently loaded shared objects. + // + // We should copy the symbols (which include methods and variables) from SIDE_MODULE to MAIN_MODULE. + + if (!asmLibraryArg.hasOwnProperty(sym)) { + asmLibraryArg[sym] = exports[sym]; + } + + // Export native export on the Module object. + // TODO(sbc): Do all users want this? Should we skip this by default? + var module_sym = asmjsMangle(sym); + if (!Module.hasOwnProperty(module_sym)) { + Module[module_sym] = exports[sym]; + } + } + } + + var LDSO = {loadedLibsByName:{},loadedLibsByHandle:{}}; + + function dynCallLegacy(sig, ptr, args) { + assert(('dynCall_' + sig) in Module, 'bad function pointer type - no table for sig \'' + sig + '\''); + if (args && args.length) { + // j (64-bit integer) must be passed in as two numbers [low 32, high 32]. + assert(args.length === sig.substring(1).replace(/j/g, '--').length); + } else { + assert(sig.length == 1); + } + var f = Module["dynCall_" + sig]; + return args && args.length ? f.apply(null, [ptr].concat(args)) : f.call(null, ptr); + } + /** @param {Object=} args */ + function dynCall(sig, ptr, args) { + // Without WASM_BIGINT support we cannot directly call function with i64 as + // part of thier signature, so we rely the dynCall functions generated by + // wasm-emscripten-finalize + if (sig.includes('j')) { + return dynCallLegacy(sig, ptr, args); + } + assert(getWasmTableEntry(ptr), 'missing table entry in dynCall: ' + ptr); + return getWasmTableEntry(ptr).apply(null, args) + } + function createInvokeFunction(sig) { + return function() { + var sp = stackSave(); + try { + return dynCall(sig, arguments[0], Array.prototype.slice.call(arguments, 1)); + } catch(e) { + stackRestore(sp); + // Exceptions thrown from C++ exception will be integer numbers. + // longjmp will throw the number Infinity. Re-throw other types of + // exceptions using a compact and fast check. + if (e !== e+0) throw e; + _setThrew(1, 0); + } + } + } + + var ___heap_base = 5251904; + function getMemory(size) { + // After the runtime is initialized, we must only use sbrk() normally. + if (runtimeInitialized) + return _malloc(size); + var ret = ___heap_base; + var end = (ret + size + 15) & -16; + assert(end <= HEAP8.length, 'failure to getMemory - memory growth etc. is not supported there, call malloc/sbrk directly or increase INITIAL_MEMORY'); + ___heap_base = end; + GOT['__heap_base'].value = end; + return ret; + } + + function isInternalSym(symName) { + // TODO: find a way to mark these in the binary or avoid exporting them. + return [ + '__cpp_exception', + '__c_longjmp', + '__wasm_apply_data_relocs', + '__dso_handle', + '__tls_size', + '__tls_align', + '__set_stack_limits', + 'emscripten_tls_init', + '__wasm_init_tls', + '__wasm_call_ctors', + ].includes(symName) + ; + } + function updateGOT(exports, replace) { + for (var symName in exports) { + if (isInternalSym(symName)) { + continue; + } + + var value = exports[symName]; + if (symName.startsWith('orig$')) { + symName = symName.split('$')[1]; + replace = true; + } + + if (!GOT[symName]) { + GOT[symName] = new WebAssembly.Global({'value': 'i32', 'mutable': true}); + } + if (replace || GOT[symName].value == 0) { + if (typeof value == 'function') { + GOT[symName].value = addFunction(value); + } else if (typeof value == 'number') { + GOT[symName].value = value; + } else if (typeof value == 'bigint') { + GOT[symName].value = Number(value); + } else { + err("unhandled export type for `" + symName + "`: " + (typeof value)); + } + } + } + } + /** @param {boolean=} replace */ + function relocateExports(exports, memoryBase, replace) { + var relocated = {}; + + for (var e in exports) { + var value = exports[e]; + if (typeof value == 'object') { + // a breaking change in the wasm spec, globals are now objects + // https://github.com/WebAssembly/mutable-global/issues/1 + value = value.value; + } + if (typeof value == 'number') { + value += memoryBase; + } + relocated[e] = value; + } + updateGOT(relocated, replace); + return relocated; + } + + function resolveGlobalSymbol(symName, direct) { + var sym; + if (direct) { + // First look for the orig$ symbol which is the symbols without + // any legalization performed. + sym = asmLibraryArg['orig$' + symName]; + } + if (!sym) { + sym = asmLibraryArg[symName]; + } + + // Check for the symbol on the Module object. This is the only + // way to dynamically access JS library symbols that were not + // referenced by the main module (and therefore not part of the + // initial set of symbols included in asmLibraryArg when it + // was declared. + if (!sym) { + sym = Module[asmjsMangle(symName)]; + } + + if (!sym && symName.startsWith('invoke_')) { + sym = createInvokeFunction(symName.split('_')[1]); + } + + return sym; + } + + function alignMemory(size, alignment) { + assert(alignment, "alignment argument is required"); + return Math.ceil(size / alignment) * alignment; + } + + function zeroMemory(address, size) { + HEAPU8.fill(0, address, address + size); + } + /** @param {number=} handle */ + function loadWebAssemblyModule(binary, flags, handle) { + var metadata = getDylinkMetadata(binary); + var originalTable = wasmTable; + + // loadModule loads the wasm module after all its dependencies have been loaded. + // can be called both sync/async. + function loadModule() { + // The first thread to load a given module needs to allocate the static + // table and memory regions. Later threads re-use the same table region + // and can ignore the memory region (since memory is shared between + // threads already). + var needsAllocation = !handle || !HEAP8[(((handle)+(24))>>0)]; + if (needsAllocation) { + // alignments are powers of 2 + var memAlign = Math.pow(2, metadata.memoryAlign); + // finalize alignments and verify them + memAlign = Math.max(memAlign, STACK_ALIGN); // we at least need stack alignment + // prepare memory + var memoryBase = metadata.memorySize ? alignMemory(getMemory(metadata.memorySize + memAlign), memAlign) : 0; // TODO: add to cleanups + var tableBase = metadata.tableSize ? wasmTable.length : 0; + if (handle) { + HEAP8[(((handle)+(24))>>0)] = 1; + HEAP32[(((handle)+(28))>>2)] = memoryBase; + HEAP32[(((handle)+(32))>>2)] = metadata.memorySize; + HEAP32[(((handle)+(36))>>2)] = tableBase; + HEAP32[(((handle)+(40))>>2)] = metadata.tableSize; + } + } else { + memoryBase = HEAP32[(((handle)+(28))>>2)]; + tableBase = HEAP32[(((handle)+(36))>>2)]; + } + + var tableGrowthNeeded = tableBase + metadata.tableSize - wasmTable.length; + if (tableGrowthNeeded > 0) { + wasmTable.grow(tableGrowthNeeded); + } + + // This is the export map that we ultimately return. We declare it here + // so it can be used within resolveSymbol. We resolve symbols against + // this local symbol map in the case there they are not present on the + // global Module object. We need this fallback because: + // a) Modules sometime need to import their own symbols + // b) Symbols from side modules are not always added to the global namespace. + var moduleExports; + + function resolveSymbol(sym) { + var resolved = resolveGlobalSymbol(sym, false); + if (!resolved) { + resolved = moduleExports[sym]; + } + assert(resolved, 'undefined symbol `' + sym + '`. perhaps a side module was not linked in? if this global was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment'); + return resolved; + } + + // TODO kill ↓↓↓ (except "symbols local to this module", it will likely be + // not needed if we require that if A wants symbols from B it has to link + // to B explicitly: similarly to -Wl,--no-undefined) + // + // wasm dynamic libraries are pure wasm, so they cannot assist in + // their own loading. When side module A wants to import something + // provided by a side module B that is loaded later, we need to + // add a layer of indirection, but worse, we can't even tell what + // to add the indirection for, without inspecting what A's imports + // are. To do that here, we use a JS proxy (another option would + // be to inspect the binary directly). + var proxyHandler = { + 'get': function(stubs, prop) { + // symbols that should be local to this module + switch (prop) { + case '__memory_base': + return memoryBase; + case '__table_base': + return tableBase; + } + if (prop in asmLibraryArg) { + // No stub needed, symbol already exists in symbol table + return asmLibraryArg[prop]; + } + // Return a stub function that will resolve the symbol + // when first called. + if (!(prop in stubs)) { + var resolved; + stubs[prop] = function() { + if (!resolved) resolved = resolveSymbol(prop); + return resolved.apply(null, arguments); + }; + } + return stubs[prop]; + } + }; + var proxy = new Proxy({}, proxyHandler); + var info = { + 'GOT.mem': new Proxy({}, GOTHandler), + 'GOT.func': new Proxy({}, GOTHandler), + 'env': proxy, + wasi_snapshot_preview1: proxy, + }; + + function postInstantiation(instance) { + // the table should be unchanged + assert(wasmTable === originalTable); + // add new entries to functionsInTableMap + updateTableMap(tableBase, metadata.tableSize); + moduleExports = relocateExports(instance.exports, memoryBase); + if (!flags.allowUndefined) { + reportUndefinedSymbols(); + } + + // initialize the module + var init = moduleExports['__wasm_call_ctors']; + if (init) { + if (runtimeInitialized) { + init(); + } else { + // we aren't ready to run compiled code yet + __ATINIT__.push(init); + } + } + return moduleExports; + } + + if (flags.loadAsync) { + if (binary instanceof WebAssembly.Module) { + var instance = new WebAssembly.Instance(binary, info); + return Promise.resolve(postInstantiation(instance)); + } + return WebAssembly.instantiate(binary, info).then(function(result) { + return postInstantiation(result.instance); + }); + } + + var module = binary instanceof WebAssembly.Module ? binary : new WebAssembly.Module(binary); + var instance = new WebAssembly.Instance(module, info); + return postInstantiation(instance); + } + + // now load needed libraries and the module itself. + if (flags.loadAsync) { + return metadata.neededDynlibs.reduce(function(chain, dynNeeded) { + return chain.then(function() { + return loadDynamicLibrary(dynNeeded, flags); + }); + }, Promise.resolve()).then(function() { + return loadModule(); + }); + } + + metadata.neededDynlibs.forEach(function(dynNeeded) { + loadDynamicLibrary(dynNeeded, flags); + }); + return loadModule(); + } + /** @param {number=} handle */ + function loadDynamicLibrary(lib, flags, handle) { + if (lib == '__main__' && !LDSO.loadedLibsByName[lib]) { + LDSO.loadedLibsByName[lib] = { + refcount: Infinity, // = nodelete + name: '__main__', + module: Module['asm'], + global: true + }; + } + + // when loadDynamicLibrary did not have flags, libraries were loaded + // globally & permanently + flags = flags || {global: true, nodelete: true} + + var dso = LDSO.loadedLibsByName[lib]; + if (dso) { + // the library is being loaded or has been loaded already. + // + // however it could be previously loaded only locally and if we get + // load request with global=true we have to make it globally visible now. + if (flags.global && !dso.global) { + dso.global = true; + if (dso.module !== 'loading') { + // ^^^ if module is 'loading' - symbols merging will be eventually done by the loader. + mergeLibSymbols(dso.module, lib) + } + } + // same for "nodelete" + if (flags.nodelete && dso.refcount !== Infinity) { + dso.refcount = Infinity; + } + dso.refcount++ + if (handle) { + LDSO.loadedLibsByHandle[handle] = dso; + } + return flags.loadAsync ? Promise.resolve(true) : true; + } + + // allocate new DSO + dso = { + refcount: flags.nodelete ? Infinity : 1, + name: lib, + module: 'loading', + global: flags.global, + }; + LDSO.loadedLibsByName[lib] = dso; + if (handle) { + LDSO.loadedLibsByHandle[handle] = dso; + } + + // libData <- libFile + function loadLibData(libFile) { + // for wasm, we can use fetch for async, but for fs mode we can only imitate it + if (flags.fs && flags.fs.findObject(libFile)) { + var libData = flags.fs.readFile(libFile, {encoding: 'binary'}); + if (!(libData instanceof Uint8Array)) { + libData = new Uint8Array(libData); + } + return flags.loadAsync ? Promise.resolve(libData) : libData; + } + + if (flags.loadAsync) { + return new Promise(function(resolve, reject) { + readAsync(libFile, function(data) { resolve(new Uint8Array(data)); }, reject); + }); + } + + // load the binary synchronously + if (!readBinary) { + throw new Error(libFile + ': file not found, and synchronous loading of external files is not available'); + } + return readBinary(libFile); + } + + // libModule <- lib + function getLibModule() { + // lookup preloaded cache first + if (Module['preloadedWasm'] !== undefined && + Module['preloadedWasm'][lib] !== undefined) { + var libModule = Module['preloadedWasm'][lib]; + return flags.loadAsync ? Promise.resolve(libModule) : libModule; + } + + // module not preloaded - load lib data and create new module from it + if (flags.loadAsync) { + return loadLibData(lib).then(function(libData) { + return loadWebAssemblyModule(libData, flags, handle); + }); + } + + return loadWebAssemblyModule(loadLibData(lib), flags, handle); + } + + // module for lib is loaded - update the dso & global namespace + function moduleLoaded(libModule) { + if (dso.global) { + mergeLibSymbols(libModule, lib); + } + dso.module = libModule; + } + + if (flags.loadAsync) { + return getLibModule().then(function(libModule) { + moduleLoaded(libModule); + return true; + }); + } + + moduleLoaded(getLibModule()); + return true; + } + + function reportUndefinedSymbols() { + for (var symName in GOT) { + if (GOT[symName].value == 0) { + var value = resolveGlobalSymbol(symName, true) + assert(value, 'undefined symbol `' + symName + '`. perhaps a side module was not linked in? if this global was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment'); + if (typeof value == 'function') { + /** @suppress {checkTypes} */ + GOT[symName].value = addFunction(value, value.sig); + } else if (typeof value == 'number') { + GOT[symName].value = value; + } else { + throw new Error('bad export type for `' + symName + '`: ' + (typeof value)); + } + } + } + } + function preloadDylibs() { + if (!dynamicLibraries.length) { + reportUndefinedSymbols(); + return; + } + + // Load binaries asynchronously + addRunDependency('preloadDylibs'); + dynamicLibraries.reduce(function(chain, lib) { + return chain.then(function() { + return loadDynamicLibrary(lib, {loadAsync: true, global: true, nodelete: true, allowUndefined: true}); + }); + }, Promise.resolve()).then(function() { + // we got them all, wonderful + reportUndefinedSymbols(); + removeRunDependency('preloadDylibs'); + }); + } + + + + function setWasmTableEntry(idx, func) { + wasmTable.set(idx, func); + wasmTableMirror[idx] = func; + } + + function stackTrace() { + var js = jsStackTrace(); + if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace'](); + return demangleAll(js); + } + + function __ZN3p8g10backgroundEf( + ) { + if (!Module['__ZN3p8g10backgroundEf']) abort("external symbol '_ZN3p8g10backgroundEf' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g10backgroundEf'].apply(null, arguments); + } + + function __ZN3p8g12strokeWeightEf( + ) { + if (!Module['__ZN3p8g12strokeWeightEf']) abort("external symbol '_ZN3p8g12strokeWeightEf' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g12strokeWeightEf'].apply(null, arguments); + } + + function __ZN3p8g3runEiiNSt3__212basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE( + ) { + if (!Module['__ZN3p8g3runEiiNSt3__212basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE']) abort("external symbol '_ZN3p8g3runEiiNSt3__212basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g3runEiiNSt3__212basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE'].apply(null, arguments); + } + + function __ZN3p8g4lineEffff( + ) { + if (!Module['__ZN3p8g4lineEffff']) abort("external symbol '_ZN3p8g4lineEffff' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g4lineEffff'].apply(null, arguments); + } + + function __ZN3p8g5pointEff( + ) { + if (!Module['__ZN3p8g5pointEff']) abort("external symbol '_ZN3p8g5pointEff' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g5pointEff'].apply(null, arguments); + } + + function __ZN3p8g5widthE( + ) { + if (!Module['__ZN3p8g5widthE']) abort("external symbol '_ZN3p8g5widthE' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g5widthE'].apply(null, arguments); + } + + function __ZN3p8g6heightE( + ) { + if (!Module['__ZN3p8g6heightE']) abort("external symbol '_ZN3p8g6heightE' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g6heightE'].apply(null, arguments); + } + + function __ZN3p8g6mouseXE( + ) { + if (!Module['__ZN3p8g6mouseXE']) abort("external symbol '_ZN3p8g6mouseXE' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g6mouseXE'].apply(null, arguments); + } + + function __ZN3p8g6mouseYE( + ) { + if (!Module['__ZN3p8g6mouseYE']) abort("external symbol '_ZN3p8g6mouseYE' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g6mouseYE'].apply(null, arguments); + } + + function __ZN3p8g6strokeEf( + ) { + if (!Module['__ZN3p8g6strokeEf']) abort("external symbol '_ZN3p8g6strokeEf' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g6strokeEf'].apply(null, arguments); + } + + function __ZN3p8g6strokeEfff( + ) { + if (!Module['__ZN3p8g6strokeEfff']) abort("external symbol '_ZN3p8g6strokeEfff' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['__ZN3p8g6strokeEfff'].apply(null, arguments); + } + + function ___cxa_allocate_exception(size) { + // Thrown object is prepended by exception metadata block + return _malloc(size + 16) + 16; + } + ___cxa_allocate_exception.sig = 'vi'; + + /** @constructor */ + function ExceptionInfo(excPtr) { + this.excPtr = excPtr; + this.ptr = excPtr - 16; + + this.set_type = function(type) { + HEAP32[(((this.ptr)+(4))>>2)] = type; + }; + + this.get_type = function() { + return HEAP32[(((this.ptr)+(4))>>2)]; + }; + + this.set_destructor = function(destructor) { + HEAP32[(((this.ptr)+(8))>>2)] = destructor; + }; + + this.get_destructor = function() { + return HEAP32[(((this.ptr)+(8))>>2)]; + }; + + this.set_refcount = function(refcount) { + HEAP32[((this.ptr)>>2)] = refcount; + }; + + this.set_caught = function (caught) { + caught = caught ? 1 : 0; + HEAP8[(((this.ptr)+(12))>>0)] = caught; + }; + + this.get_caught = function () { + return HEAP8[(((this.ptr)+(12))>>0)] != 0; + }; + + this.set_rethrown = function (rethrown) { + rethrown = rethrown ? 1 : 0; + HEAP8[(((this.ptr)+(13))>>0)] = rethrown; + }; + + this.get_rethrown = function () { + return HEAP8[(((this.ptr)+(13))>>0)] != 0; + }; + + // Initialize native structure fields. Should be called once after allocated. + this.init = function(type, destructor) { + this.set_type(type); + this.set_destructor(destructor); + this.set_refcount(0); + this.set_caught(false); + this.set_rethrown(false); + } + + this.add_ref = function() { + var value = HEAP32[((this.ptr)>>2)]; + HEAP32[((this.ptr)>>2)] = value + 1; + }; + + // Returns true if last reference released. + this.release_ref = function() { + var prev = HEAP32[((this.ptr)>>2)]; + HEAP32[((this.ptr)>>2)] = prev - 1; + assert(prev > 0); + return prev === 1; + }; + } + + var exceptionLast = 0; + + var uncaughtExceptionCount = 0; + function ___cxa_throw(ptr, type, destructor) { + var info = new ExceptionInfo(ptr); + // Initialize ExceptionInfo content after it was allocated in __cxa_allocate_exception. + info.init(type, destructor); + exceptionLast = ptr; + uncaughtExceptionCount++; + throw ptr + " - Exception catching is disabled, this exception cannot be caught. Compile with -s NO_DISABLE_EXCEPTION_CATCHING or -s EXCEPTION_CATCHING_ALLOWED=[..] to catch." + " (note: in dynamic linking, if a side module wants exceptions, the main module must be built with that support)"; + } + ___cxa_throw.sig = 'viii'; + + + var ___memory_base = new WebAssembly.Global({'value': 'i32', 'mutable': false}, 1024); + Module["___memory_base"] = ___memory_base; + + var ___stack_pointer = new WebAssembly.Global({'value': 'i32', 'mutable': true}, 5251904); + Module["___stack_pointer"] = ___stack_pointer; + + var ___table_base = new WebAssembly.Global({'value': 'i32', 'mutable': false}, 1); + Module["___table_base"] = ___table_base; + + function _abort() { + abort('native code called abort()'); + } + _abort.sig = 'v'; + + function _emscripten_force_exit(status) { + warnOnce('emscripten_force_exit cannot actually shut down the runtime, as the build does not have EXIT_RUNTIME set'); + noExitRuntime = false; + exit(status); + } + Module["_emscripten_force_exit"] = _emscripten_force_exit; + _emscripten_force_exit.sig = 'vi'; + + function _emscripten_get_device_pixel_ratio() { + return (typeof devicePixelRatio == 'number' && devicePixelRatio) || 1.0; + } + Module["_emscripten_get_device_pixel_ratio"] = _emscripten_get_device_pixel_ratio; + _emscripten_get_device_pixel_ratio.sig = 'd'; + + function _emscripten_memcpy_big(dest, src, num) { + HEAPU8.copyWithin(dest, src, src + num); + } + + function _emscripten_request_animation_frame_loop(cb, userData) { + function tick(timeStamp) { + if (getWasmTableEntry(cb)(timeStamp, userData)) { + requestAnimationFrame(tick); + } + } + return requestAnimationFrame(tick); + } + Module["_emscripten_request_animation_frame_loop"] = _emscripten_request_animation_frame_loop; + + function _emscripten_get_heap_max() { + return HEAPU8.length; + } + + function abortOnCannotGrowMemory(requestedSize) { + abort('Cannot enlarge memory arrays to size ' + requestedSize + ' bytes (OOM). Either (1) compile with -s INITIAL_MEMORY=X with X higher than the current value ' + HEAP8.length + ', (2) compile with -s ALLOW_MEMORY_GROWTH=1 which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with -s ABORTING_MALLOC=0 '); + } + function _emscripten_resize_heap(requestedSize) { + var oldSize = HEAPU8.length; + requestedSize = requestedSize >>> 0; + abortOnCannotGrowMemory(requestedSize); + } + + var JSEvents = {inEventHandler:0,removeAllEventListeners:function() { + for (var i = JSEvents.eventHandlers.length-1; i >= 0; --i) { + JSEvents._removeHandler(i); + } + JSEvents.eventHandlers = []; + JSEvents.deferredCalls = []; + },registerRemoveEventListeners:function() { + if (!JSEvents.removeEventListenersRegistered) { + __ATEXIT__.push(JSEvents.removeAllEventListeners); + JSEvents.removeEventListenersRegistered = true; + } + },deferredCalls:[],deferCall:function(targetFunction, precedence, argsList) { + function arraysHaveEqualContent(arrA, arrB) { + if (arrA.length != arrB.length) return false; + + for (var i in arrA) { + if (arrA[i] != arrB[i]) return false; + } + return true; + } + // Test if the given call was already queued, and if so, don't add it again. + for (var i in JSEvents.deferredCalls) { + var call = JSEvents.deferredCalls[i]; + if (call.targetFunction == targetFunction && arraysHaveEqualContent(call.argsList, argsList)) { + return; + } + } + JSEvents.deferredCalls.push({ + targetFunction: targetFunction, + precedence: precedence, + argsList: argsList + }); + + JSEvents.deferredCalls.sort(function(x,y) { return x.precedence < y.precedence; }); + },removeDeferredCalls:function(targetFunction) { + for (var i = 0; i < JSEvents.deferredCalls.length; ++i) { + if (JSEvents.deferredCalls[i].targetFunction == targetFunction) { + JSEvents.deferredCalls.splice(i, 1); + --i; + } + } + },canPerformEventHandlerRequests:function() { + return JSEvents.inEventHandler && JSEvents.currentEventHandler.allowsDeferredCalls; + },runDeferredCalls:function() { + if (!JSEvents.canPerformEventHandlerRequests()) { + return; + } + for (var i = 0; i < JSEvents.deferredCalls.length; ++i) { + var call = JSEvents.deferredCalls[i]; + JSEvents.deferredCalls.splice(i, 1); + --i; + call.targetFunction.apply(null, call.argsList); + } + },eventHandlers:[],removeAllHandlersOnTarget:function(target, eventTypeString) { + for (var i = 0; i < JSEvents.eventHandlers.length; ++i) { + if (JSEvents.eventHandlers[i].target == target && + (!eventTypeString || eventTypeString == JSEvents.eventHandlers[i].eventTypeString)) { + JSEvents._removeHandler(i--); + } + } + },_removeHandler:function(i) { + var h = JSEvents.eventHandlers[i]; + h.target.removeEventListener(h.eventTypeString, h.eventListenerFunc, h.useCapture); + JSEvents.eventHandlers.splice(i, 1); + },registerOrRemoveHandler:function(eventHandler) { + var jsEventHandler = function jsEventHandler(event) { + // Increment nesting count for the event handler. + ++JSEvents.inEventHandler; + JSEvents.currentEventHandler = eventHandler; + // Process any old deferred calls the user has placed. + JSEvents.runDeferredCalls(); + // Process the actual event, calls back to user C code handler. + eventHandler.handlerFunc(event); + // Process any new deferred calls that were placed right now from this event handler. + JSEvents.runDeferredCalls(); + // Out of event handler - restore nesting count. + --JSEvents.inEventHandler; + }; + + if (eventHandler.callbackfunc) { + eventHandler.eventListenerFunc = jsEventHandler; + eventHandler.target.addEventListener(eventHandler.eventTypeString, jsEventHandler, eventHandler.useCapture); + JSEvents.eventHandlers.push(eventHandler); + JSEvents.registerRemoveEventListeners(); + } else { + for (var i = 0; i < JSEvents.eventHandlers.length; ++i) { + if (JSEvents.eventHandlers[i].target == eventHandler.target + && JSEvents.eventHandlers[i].eventTypeString == eventHandler.eventTypeString) { + JSEvents._removeHandler(i--); + } + } + } + },getNodeNameForTarget:function(target) { + if (!target) return ''; + if (target == window) return '#window'; + if (target == screen) return '#screen'; + return (target && target.nodeName) ? target.nodeName : ''; + },fullscreenEnabled:function() { + return document.fullscreenEnabled + // Safari 13.0.3 on macOS Catalina 10.15.1 still ships with prefixed webkitFullscreenEnabled. + // TODO: If Safari at some point ships with unprefixed version, update the version check above. + || document.webkitFullscreenEnabled + ; + }}; + + function maybeCStringToJsString(cString) { + // "cString > 2" checks if the input is a number, and isn't of the special + // values we accept here, EMSCRIPTEN_EVENT_TARGET_* (which map to 0, 1, 2). + // In other words, if cString > 2 then it's a pointer to a valid place in + // memory, and points to a C string. + return cString > 2 ? UTF8ToString(cString) : cString; + } + + var specialHTMLTargets = [0, typeof document != 'undefined' ? document : 0, typeof window != 'undefined' ? window : 0]; + function findEventTarget(target) { + target = maybeCStringToJsString(target); + var domElement = specialHTMLTargets[target] || (typeof document != 'undefined' ? document.querySelector(target) : undefined); + return domElement; + } + function _emscripten_set_element_css_size(target, width, height) { + target = findEventTarget(target); + if (!target) return -4; + + target.style.width = width + "px"; + target.style.height = height + "px"; + + return 0; + } + Module["_emscripten_set_element_css_size"] = _emscripten_set_element_css_size; + _emscripten_set_element_css_size.sig = 'iiii'; + + var PATH = {splitPath:function(filename) { + var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/; + return splitPathRe.exec(filename).slice(1); + },normalizeArray:function(parts, allowAboveRoot) { + // if the path tries to go above the root, `up` ends up > 0 + var up = 0; + for (var i = parts.length - 1; i >= 0; i--) { + var last = parts[i]; + if (last === '.') { + parts.splice(i, 1); + } else if (last === '..') { + parts.splice(i, 1); + up++; + } else if (up) { + parts.splice(i, 1); + up--; + } + } + // if the path is allowed to go above the root, restore leading ..s + if (allowAboveRoot) { + for (; up; up--) { + parts.unshift('..'); + } + } + return parts; + },normalize:function(path) { + var isAbsolute = path.charAt(0) === '/', + trailingSlash = path.substr(-1) === '/'; + // Normalize the path + path = PATH.normalizeArray(path.split('/').filter(function(p) { + return !!p; + }), !isAbsolute).join('/'); + if (!path && !isAbsolute) { + path = '.'; + } + if (path && trailingSlash) { + path += '/'; + } + return (isAbsolute ? '/' : '') + path; + },dirname:function(path) { + var result = PATH.splitPath(path), + root = result[0], + dir = result[1]; + if (!root && !dir) { + // No dirname whatsoever + return '.'; + } + if (dir) { + // It has a dirname, strip trailing slash + dir = dir.substr(0, dir.length - 1); + } + return root + dir; + },basename:function(path) { + // EMSCRIPTEN return '/'' for '/', not an empty string + if (path === '/') return '/'; + path = PATH.normalize(path); + path = path.replace(/\/$/, ""); + var lastSlash = path.lastIndexOf('/'); + if (lastSlash === -1) return path; + return path.substr(lastSlash+1); + },extname:function(path) { + return PATH.splitPath(path)[3]; + },join:function() { + var paths = Array.prototype.slice.call(arguments, 0); + return PATH.normalize(paths.join('/')); + },join2:function(l, r) { + return PATH.normalize(l + '/' + r); + }}; + + function getRandomDevice() { + if (typeof crypto == 'object' && typeof crypto['getRandomValues'] == 'function') { + // for modern web browsers + var randomBuffer = new Uint8Array(1); + return function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; }; + } else + if (ENVIRONMENT_IS_NODE) { + // for nodejs with or without crypto support included + try { + var crypto_module = require('crypto'); + // nodejs has crypto support + return function() { return crypto_module['randomBytes'](1)[0]; }; + } catch (e) { + // nodejs doesn't have crypto support + } + } + // we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096 + return function() { abort("no cryptographic support found for randomDevice. consider polyfilling it if you want to use something insecure like Math.random(), e.g. put this in a --pre-js: var crypto = { getRandomValues: function(array) { for (var i = 0; i < array.length; i++) array[i] = (Math.random()*256)|0 } };"); }; + } + + var PATH_FS = {resolve:function() { + var resolvedPath = '', + resolvedAbsolute = false; + for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) { + var path = (i >= 0) ? arguments[i] : FS.cwd(); + // Skip empty and invalid entries + if (typeof path != 'string') { + throw new TypeError('Arguments to path.resolve must be strings'); + } else if (!path) { + return ''; // an invalid portion invalidates the whole thing + } + resolvedPath = path + '/' + resolvedPath; + resolvedAbsolute = path.charAt(0) === '/'; + } + // At this point the path should be resolved to a full absolute path, but + // handle relative paths to be safe (might happen when process.cwd() fails) + resolvedPath = PATH.normalizeArray(resolvedPath.split('/').filter(function(p) { + return !!p; + }), !resolvedAbsolute).join('/'); + return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.'; + },relative:function(from, to) { + from = PATH_FS.resolve(from).substr(1); + to = PATH_FS.resolve(to).substr(1); + function trim(arr) { + var start = 0; + for (; start < arr.length; start++) { + if (arr[start] !== '') break; + } + var end = arr.length - 1; + for (; end >= 0; end--) { + if (arr[end] !== '') break; + } + if (start > end) return []; + return arr.slice(start, end - start + 1); + } + var fromParts = trim(from.split('/')); + var toParts = trim(to.split('/')); + var length = Math.min(fromParts.length, toParts.length); + var samePartsLength = length; + for (var i = 0; i < length; i++) { + if (fromParts[i] !== toParts[i]) { + samePartsLength = i; + break; + } + } + var outputParts = []; + for (var i = samePartsLength; i < fromParts.length; i++) { + outputParts.push('..'); + } + outputParts = outputParts.concat(toParts.slice(samePartsLength)); + return outputParts.join('/'); + }}; + + var TTY = {ttys:[],init:function () { + // https://github.com/emscripten-core/emscripten/pull/1555 + // if (ENVIRONMENT_IS_NODE) { + // // currently, FS.init does not distinguish if process.stdin is a file or TTY + // // device, it always assumes it's a TTY device. because of this, we're forcing + // // process.stdin to UTF8 encoding to at least make stdin reading compatible + // // with text files until FS.init can be refactored. + // process['stdin']['setEncoding']('utf8'); + // } + },shutdown:function() { + // https://github.com/emscripten-core/emscripten/pull/1555 + // if (ENVIRONMENT_IS_NODE) { + // // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)? + // // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation + // // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists? + // // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle + // // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call + // process['stdin']['pause'](); + // } + },register:function(dev, ops) { + TTY.ttys[dev] = { input: [], output: [], ops: ops }; + FS.registerDevice(dev, TTY.stream_ops); + },stream_ops:{open:function(stream) { + var tty = TTY.ttys[stream.node.rdev]; + if (!tty) { + throw new FS.ErrnoError(43); + } + stream.tty = tty; + stream.seekable = false; + },close:function(stream) { + // flush any pending line data + stream.tty.ops.flush(stream.tty); + },flush:function(stream) { + stream.tty.ops.flush(stream.tty); + },read:function(stream, buffer, offset, length, pos /* ignored */) { + if (!stream.tty || !stream.tty.ops.get_char) { + throw new FS.ErrnoError(60); + } + var bytesRead = 0; + for (var i = 0; i < length; i++) { + var result; + try { + result = stream.tty.ops.get_char(stream.tty); + } catch (e) { + throw new FS.ErrnoError(29); + } + if (result === undefined && bytesRead === 0) { + throw new FS.ErrnoError(6); + } + if (result === null || result === undefined) break; + bytesRead++; + buffer[offset+i] = result; + } + if (bytesRead) { + stream.node.timestamp = Date.now(); + } + return bytesRead; + },write:function(stream, buffer, offset, length, pos) { + if (!stream.tty || !stream.tty.ops.put_char) { + throw new FS.ErrnoError(60); + } + try { + for (var i = 0; i < length; i++) { + stream.tty.ops.put_char(stream.tty, buffer[offset+i]); + } + } catch (e) { + throw new FS.ErrnoError(29); + } + if (length) { + stream.node.timestamp = Date.now(); + } + return i; + }},default_tty_ops:{get_char:function(tty) { + if (!tty.input.length) { + var result = null; + if (ENVIRONMENT_IS_NODE) { + // we will read data by chunks of BUFSIZE + var BUFSIZE = 256; + var buf = Buffer.alloc(BUFSIZE); + var bytesRead = 0; + + try { + bytesRead = fs.readSync(process.stdin.fd, buf, 0, BUFSIZE, -1); + } catch(e) { + // Cross-platform differences: on Windows, reading EOF throws an exception, but on other OSes, + // reading EOF returns 0. Uniformize behavior by treating the EOF exception to return 0. + if (e.toString().includes('EOF')) bytesRead = 0; + else throw e; + } + + if (bytesRead > 0) { + result = buf.slice(0, bytesRead).toString('utf-8'); + } else { + result = null; + } + } else + if (typeof window != 'undefined' && + typeof window.prompt == 'function') { + // Browser. + result = window.prompt('Input: '); // returns null on cancel + if (result !== null) { + result += '\n'; + } + } else if (typeof readline == 'function') { + // Command line. + result = readline(); + if (result !== null) { + result += '\n'; + } + } + if (!result) { + return null; + } + tty.input = intArrayFromString(result, true); + } + return tty.input.shift(); + },put_char:function(tty, val) { + if (val === null || val === 10) { + out(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } else { + if (val != 0) tty.output.push(val); // val == 0 would cut text output off in the middle. + } + },flush:function(tty) { + if (tty.output && tty.output.length > 0) { + out(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } + }},default_tty1_ops:{put_char:function(tty, val) { + if (val === null || val === 10) { + err(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } else { + if (val != 0) tty.output.push(val); + } + },flush:function(tty) { + if (tty.output && tty.output.length > 0) { + err(UTF8ArrayToString(tty.output, 0)); + tty.output = []; + } + }}}; + + function mmapAlloc(size) { + abort('internal error: mmapAlloc called but `emscripten_builtin_memalign` native symbol not exported'); + } + var MEMFS = {ops_table:null,mount:function(mount) { + return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0); + },createNode:function(parent, name, mode, dev) { + if (FS.isBlkdev(mode) || FS.isFIFO(mode)) { + // no supported + throw new FS.ErrnoError(63); + } + if (!MEMFS.ops_table) { + MEMFS.ops_table = { + dir: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr, + lookup: MEMFS.node_ops.lookup, + mknod: MEMFS.node_ops.mknod, + rename: MEMFS.node_ops.rename, + unlink: MEMFS.node_ops.unlink, + rmdir: MEMFS.node_ops.rmdir, + readdir: MEMFS.node_ops.readdir, + symlink: MEMFS.node_ops.symlink + }, + stream: { + llseek: MEMFS.stream_ops.llseek + } + }, + file: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr + }, + stream: { + llseek: MEMFS.stream_ops.llseek, + read: MEMFS.stream_ops.read, + write: MEMFS.stream_ops.write, + allocate: MEMFS.stream_ops.allocate, + mmap: MEMFS.stream_ops.mmap, + msync: MEMFS.stream_ops.msync + } + }, + link: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr, + readlink: MEMFS.node_ops.readlink + }, + stream: {} + }, + chrdev: { + node: { + getattr: MEMFS.node_ops.getattr, + setattr: MEMFS.node_ops.setattr + }, + stream: FS.chrdev_stream_ops + } + }; + } + var node = FS.createNode(parent, name, mode, dev); + if (FS.isDir(node.mode)) { + node.node_ops = MEMFS.ops_table.dir.node; + node.stream_ops = MEMFS.ops_table.dir.stream; + node.contents = {}; + } else if (FS.isFile(node.mode)) { + node.node_ops = MEMFS.ops_table.file.node; + node.stream_ops = MEMFS.ops_table.file.stream; + node.usedBytes = 0; // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity. + // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred + // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size + // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme. + node.contents = null; + } else if (FS.isLink(node.mode)) { + node.node_ops = MEMFS.ops_table.link.node; + node.stream_ops = MEMFS.ops_table.link.stream; + } else if (FS.isChrdev(node.mode)) { + node.node_ops = MEMFS.ops_table.chrdev.node; + node.stream_ops = MEMFS.ops_table.chrdev.stream; + } + node.timestamp = Date.now(); + // add the new node to the parent + if (parent) { + parent.contents[name] = node; + parent.timestamp = node.timestamp; + } + return node; + },getFileDataAsTypedArray:function(node) { + if (!node.contents) return new Uint8Array(0); + if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes); // Make sure to not return excess unused bytes. + return new Uint8Array(node.contents); + },expandFileStorage:function(node, newCapacity) { + var prevCapacity = node.contents ? node.contents.length : 0; + if (prevCapacity >= newCapacity) return; // No need to expand, the storage was already large enough. + // Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity. + // For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to + // avoid overshooting the allocation cap by a very large margin. + var CAPACITY_DOUBLING_MAX = 1024 * 1024; + newCapacity = Math.max(newCapacity, (prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2.0 : 1.125)) >>> 0); + if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256); // At minimum allocate 256b for each file when expanding. + var oldContents = node.contents; + node.contents = new Uint8Array(newCapacity); // Allocate new storage. + if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0); // Copy old data over to the new storage. + },resizeFileStorage:function(node, newSize) { + if (node.usedBytes == newSize) return; + if (newSize == 0) { + node.contents = null; // Fully decommit when requesting a resize to zero. + node.usedBytes = 0; + } else { + var oldContents = node.contents; + node.contents = new Uint8Array(newSize); // Allocate new storage. + if (oldContents) { + node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes))); // Copy old data over to the new storage. + } + node.usedBytes = newSize; + } + },node_ops:{getattr:function(node) { + var attr = {}; + // device numbers reuse inode numbers. + attr.dev = FS.isChrdev(node.mode) ? node.id : 1; + attr.ino = node.id; + attr.mode = node.mode; + attr.nlink = 1; + attr.uid = 0; + attr.gid = 0; + attr.rdev = node.rdev; + if (FS.isDir(node.mode)) { + attr.size = 4096; + } else if (FS.isFile(node.mode)) { + attr.size = node.usedBytes; + } else if (FS.isLink(node.mode)) { + attr.size = node.link.length; + } else { + attr.size = 0; + } + attr.atime = new Date(node.timestamp); + attr.mtime = new Date(node.timestamp); + attr.ctime = new Date(node.timestamp); + // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize), + // but this is not required by the standard. + attr.blksize = 4096; + attr.blocks = Math.ceil(attr.size / attr.blksize); + return attr; + },setattr:function(node, attr) { + if (attr.mode !== undefined) { + node.mode = attr.mode; + } + if (attr.timestamp !== undefined) { + node.timestamp = attr.timestamp; + } + if (attr.size !== undefined) { + MEMFS.resizeFileStorage(node, attr.size); + } + },lookup:function(parent, name) { + throw FS.genericErrors[44]; + },mknod:function(parent, name, mode, dev) { + return MEMFS.createNode(parent, name, mode, dev); + },rename:function(old_node, new_dir, new_name) { + // if we're overwriting a directory at new_name, make sure it's empty. + if (FS.isDir(old_node.mode)) { + var new_node; + try { + new_node = FS.lookupNode(new_dir, new_name); + } catch (e) { + } + if (new_node) { + for (var i in new_node.contents) { + throw new FS.ErrnoError(55); + } + } + } + // do the internal rewiring + delete old_node.parent.contents[old_node.name]; + old_node.parent.timestamp = Date.now() + old_node.name = new_name; + new_dir.contents[new_name] = old_node; + new_dir.timestamp = old_node.parent.timestamp; + old_node.parent = new_dir; + },unlink:function(parent, name) { + delete parent.contents[name]; + parent.timestamp = Date.now(); + },rmdir:function(parent, name) { + var node = FS.lookupNode(parent, name); + for (var i in node.contents) { + throw new FS.ErrnoError(55); + } + delete parent.contents[name]; + parent.timestamp = Date.now(); + },readdir:function(node) { + var entries = ['.', '..']; + for (var key in node.contents) { + if (!node.contents.hasOwnProperty(key)) { + continue; + } + entries.push(key); + } + return entries; + },symlink:function(parent, newname, oldpath) { + var node = MEMFS.createNode(parent, newname, 511 /* 0777 */ | 40960, 0); + node.link = oldpath; + return node; + },readlink:function(node) { + if (!FS.isLink(node.mode)) { + throw new FS.ErrnoError(28); + } + return node.link; + }},stream_ops:{read:function(stream, buffer, offset, length, position) { + var contents = stream.node.contents; + if (position >= stream.node.usedBytes) return 0; + var size = Math.min(stream.node.usedBytes - position, length); + assert(size >= 0); + if (size > 8 && contents.subarray) { // non-trivial, and typed array + buffer.set(contents.subarray(position, position + size), offset); + } else { + for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i]; + } + return size; + },write:function(stream, buffer, offset, length, position, canOwn) { + // The data buffer should be a typed array view + assert(!(buffer instanceof ArrayBuffer)); + + if (!length) return 0; + var node = stream.node; + node.timestamp = Date.now(); + + if (buffer.subarray && (!node.contents || node.contents.subarray)) { // This write is from a typed array to a typed array? + if (canOwn) { + assert(position === 0, 'canOwn must imply no weird position inside the file'); + node.contents = buffer.subarray(offset, offset + length); + node.usedBytes = length; + return length; + } else if (node.usedBytes === 0 && position === 0) { // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data. + node.contents = buffer.slice(offset, offset + length); + node.usedBytes = length; + return length; + } else if (position + length <= node.usedBytes) { // Writing to an already allocated and used subrange of the file? + node.contents.set(buffer.subarray(offset, offset + length), position); + return length; + } + } + + // Appending to an existing file and we need to reallocate, or source data did not come as a typed array. + MEMFS.expandFileStorage(node, position+length); + if (node.contents.subarray && buffer.subarray) { + // Use typed array write which is available. + node.contents.set(buffer.subarray(offset, offset + length), position); + } else { + for (var i = 0; i < length; i++) { + node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not. + } + } + node.usedBytes = Math.max(node.usedBytes, position + length); + return length; + },llseek:function(stream, offset, whence) { + var position = offset; + if (whence === 1) { + position += stream.position; + } else if (whence === 2) { + if (FS.isFile(stream.node.mode)) { + position += stream.node.usedBytes; + } + } + if (position < 0) { + throw new FS.ErrnoError(28); + } + return position; + },allocate:function(stream, offset, length) { + MEMFS.expandFileStorage(stream.node, offset + length); + stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length); + },mmap:function(stream, address, length, position, prot, flags) { + if (address !== 0) { + // We don't currently support location hints for the address of the mapping + throw new FS.ErrnoError(28); + } + if (!FS.isFile(stream.node.mode)) { + throw new FS.ErrnoError(43); + } + var ptr; + var allocated; + var contents = stream.node.contents; + // Only make a new copy when MAP_PRIVATE is specified. + if (!(flags & 2) && contents.buffer === buffer) { + // We can't emulate MAP_SHARED when the file is not backed by the buffer + // we're mapping to (e.g. the HEAP buffer). + allocated = false; + ptr = contents.byteOffset; + } else { + // Try to avoid unnecessary slices. + if (position > 0 || position + length < contents.length) { + if (contents.subarray) { + contents = contents.subarray(position, position + length); + } else { + contents = Array.prototype.slice.call(contents, position, position + length); + } + } + allocated = true; + ptr = mmapAlloc(length); + if (!ptr) { + throw new FS.ErrnoError(48); + } + HEAP8.set(contents, ptr); + } + return { ptr: ptr, allocated: allocated }; + },msync:function(stream, buffer, offset, length, mmapFlags) { + if (!FS.isFile(stream.node.mode)) { + throw new FS.ErrnoError(43); + } + if (mmapFlags & 2) { + // MAP_PRIVATE calls need not to be synced back to underlying fs + return 0; + } + + var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false); + // should we check if bytesWritten and length are the same? + return 0; + }}}; + + /** @param {boolean=} noRunDep */ + function asyncLoad(url, onload, onerror, noRunDep) { + var dep = !noRunDep ? getUniqueRunDependency('al ' + url) : ''; + readAsync(url, function(arrayBuffer) { + assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).'); + onload(new Uint8Array(arrayBuffer)); + if (dep) removeRunDependency(dep); + }, function(event) { + if (onerror) { + onerror(); + } else { + throw 'Loading data file "' + url + '" failed.'; + } + }); + if (dep) addRunDependency(dep); + } + + var ERRNO_MESSAGES = {0:"Success",1:"Arg list too long",2:"Permission denied",3:"Address already in use",4:"Address not available",5:"Address family not supported by protocol family",6:"No more processes",7:"Socket already connected",8:"Bad file number",9:"Trying to read unreadable message",10:"Mount device busy",11:"Operation canceled",12:"No children",13:"Connection aborted",14:"Connection refused",15:"Connection reset by peer",16:"File locking deadlock error",17:"Destination address required",18:"Math arg out of domain of func",19:"Quota exceeded",20:"File exists",21:"Bad address",22:"File too large",23:"Host is unreachable",24:"Identifier removed",25:"Illegal byte sequence",26:"Connection already in progress",27:"Interrupted system call",28:"Invalid argument",29:"I/O error",30:"Socket is already connected",31:"Is a directory",32:"Too many symbolic links",33:"Too many open files",34:"Too many links",35:"Message too long",36:"Multihop attempted",37:"File or path name too long",38:"Network interface is not configured",39:"Connection reset by network",40:"Network is unreachable",41:"Too many open files in system",42:"No buffer space available",43:"No such device",44:"No such file or directory",45:"Exec format error",46:"No record locks available",47:"The link has been severed",48:"Not enough core",49:"No message of desired type",50:"Protocol not available",51:"No space left on device",52:"Function not implemented",53:"Socket is not connected",54:"Not a directory",55:"Directory not empty",56:"State not recoverable",57:"Socket operation on non-socket",59:"Not a typewriter",60:"No such device or address",61:"Value too large for defined data type",62:"Previous owner died",63:"Not super-user",64:"Broken pipe",65:"Protocol error",66:"Unknown protocol",67:"Protocol wrong type for socket",68:"Math result not representable",69:"Read only file system",70:"Illegal seek",71:"No such process",72:"Stale file handle",73:"Connection timed out",74:"Text file busy",75:"Cross-device link",100:"Device not a stream",101:"Bad font file fmt",102:"Invalid slot",103:"Invalid request code",104:"No anode",105:"Block device required",106:"Channel number out of range",107:"Level 3 halted",108:"Level 3 reset",109:"Link number out of range",110:"Protocol driver not attached",111:"No CSI structure available",112:"Level 2 halted",113:"Invalid exchange",114:"Invalid request descriptor",115:"Exchange full",116:"No data (for no delay io)",117:"Timer expired",118:"Out of streams resources",119:"Machine is not on the network",120:"Package not installed",121:"The object is remote",122:"Advertise error",123:"Srmount error",124:"Communication error on send",125:"Cross mount point (not really error)",126:"Given log. name not unique",127:"f.d. invalid for this operation",128:"Remote address changed",129:"Can access a needed shared lib",130:"Accessing a corrupted shared lib",131:".lib section in a.out corrupted",132:"Attempting to link in too many libs",133:"Attempting to exec a shared library",135:"Streams pipe error",136:"Too many users",137:"Socket type not supported",138:"Not supported",139:"Protocol family not supported",140:"Can't send after socket shutdown",141:"Too many references",142:"Host is down",148:"No medium (in tape drive)",156:"Level 2 not synchronized"}; + + var ERRNO_CODES = {}; + var FS = {root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,lookupPath:(path, opts = {}) => { + path = PATH_FS.resolve(FS.cwd(), path); + + if (!path) return { path: '', node: null }; + + var defaults = { + follow_mount: true, + recurse_count: 0 + }; + opts = Object.assign(defaults, opts) + + if (opts.recurse_count > 8) { // max recursive lookup of 8 + throw new FS.ErrnoError(32); + } + + // split the path + var parts = PATH.normalizeArray(path.split('/').filter((p) => !!p), false); + + // start at the root + var current = FS.root; + var current_path = '/'; + + for (var i = 0; i < parts.length; i++) { + var islast = (i === parts.length-1); + if (islast && opts.parent) { + // stop resolving + break; + } + + current = FS.lookupNode(current, parts[i]); + current_path = PATH.join2(current_path, parts[i]); + + // jump to the mount's root node if this is a mountpoint + if (FS.isMountpoint(current)) { + if (!islast || (islast && opts.follow_mount)) { + current = current.mounted.root; + } + } + + // by default, lookupPath will not follow a symlink if it is the final path component. + // setting opts.follow = true will override this behavior. + if (!islast || opts.follow) { + var count = 0; + while (FS.isLink(current.mode)) { + var link = FS.readlink(current_path); + current_path = PATH_FS.resolve(PATH.dirname(current_path), link); + + var lookup = FS.lookupPath(current_path, { recurse_count: opts.recurse_count + 1 }); + current = lookup.node; + + if (count++ > 40) { // limit max consecutive symlinks to 40 (SYMLOOP_MAX). + throw new FS.ErrnoError(32); + } + } + } + } + + return { path: current_path, node: current }; + },getPath:(node) => { + var path; + while (true) { + if (FS.isRoot(node)) { + var mount = node.mount.mountpoint; + if (!path) return mount; + return mount[mount.length-1] !== '/' ? mount + '/' + path : mount + path; + } + path = path ? node.name + '/' + path : node.name; + node = node.parent; + } + },hashName:(parentid, name) => { + var hash = 0; + + for (var i = 0; i < name.length; i++) { + hash = ((hash << 5) - hash + name.charCodeAt(i)) | 0; + } + return ((parentid + hash) >>> 0) % FS.nameTable.length; + },hashAddNode:(node) => { + var hash = FS.hashName(node.parent.id, node.name); + node.name_next = FS.nameTable[hash]; + FS.nameTable[hash] = node; + },hashRemoveNode:(node) => { + var hash = FS.hashName(node.parent.id, node.name); + if (FS.nameTable[hash] === node) { + FS.nameTable[hash] = node.name_next; + } else { + var current = FS.nameTable[hash]; + while (current) { + if (current.name_next === node) { + current.name_next = node.name_next; + break; + } + current = current.name_next; + } + } + },lookupNode:(parent, name) => { + var errCode = FS.mayLookup(parent); + if (errCode) { + throw new FS.ErrnoError(errCode, parent); + } + var hash = FS.hashName(parent.id, name); + for (var node = FS.nameTable[hash]; node; node = node.name_next) { + var nodeName = node.name; + if (node.parent.id === parent.id && nodeName === name) { + return node; + } + } + // if we failed to find it in the cache, call into the VFS + return FS.lookup(parent, name); + },createNode:(parent, name, mode, rdev) => { + assert(typeof parent == 'object') + var node = new FS.FSNode(parent, name, mode, rdev); + + FS.hashAddNode(node); + + return node; + },destroyNode:(node) => { + FS.hashRemoveNode(node); + },isRoot:(node) => { + return node === node.parent; + },isMountpoint:(node) => { + return !!node.mounted; + },isFile:(mode) => { + return (mode & 61440) === 32768; + },isDir:(mode) => { + return (mode & 61440) === 16384; + },isLink:(mode) => { + return (mode & 61440) === 40960; + },isChrdev:(mode) => { + return (mode & 61440) === 8192; + },isBlkdev:(mode) => { + return (mode & 61440) === 24576; + },isFIFO:(mode) => { + return (mode & 61440) === 4096; + },isSocket:(mode) => { + return (mode & 49152) === 49152; + },flagModes:{"r":0,"r+":2,"w":577,"w+":578,"a":1089,"a+":1090},modeStringToFlags:(str) => { + var flags = FS.flagModes[str]; + if (typeof flags == 'undefined') { + throw new Error('Unknown file open mode: ' + str); + } + return flags; + },flagsToPermissionString:(flag) => { + var perms = ['r', 'w', 'rw'][flag & 3]; + if ((flag & 512)) { + perms += 'w'; + } + return perms; + },nodePermissions:(node, perms) => { + if (FS.ignorePermissions) { + return 0; + } + // return 0 if any user, group or owner bits are set. + if (perms.includes('r') && !(node.mode & 292)) { + return 2; + } else if (perms.includes('w') && !(node.mode & 146)) { + return 2; + } else if (perms.includes('x') && !(node.mode & 73)) { + return 2; + } + return 0; + },mayLookup:(dir) => { + var errCode = FS.nodePermissions(dir, 'x'); + if (errCode) return errCode; + if (!dir.node_ops.lookup) return 2; + return 0; + },mayCreate:(dir, name) => { + try { + var node = FS.lookupNode(dir, name); + return 20; + } catch (e) { + } + return FS.nodePermissions(dir, 'wx'); + },mayDelete:(dir, name, isdir) => { + var node; + try { + node = FS.lookupNode(dir, name); + } catch (e) { + return e.errno; + } + var errCode = FS.nodePermissions(dir, 'wx'); + if (errCode) { + return errCode; + } + if (isdir) { + if (!FS.isDir(node.mode)) { + return 54; + } + if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) { + return 10; + } + } else { + if (FS.isDir(node.mode)) { + return 31; + } + } + return 0; + },mayOpen:(node, flags) => { + if (!node) { + return 44; + } + if (FS.isLink(node.mode)) { + return 32; + } else if (FS.isDir(node.mode)) { + if (FS.flagsToPermissionString(flags) !== 'r' || // opening for write + (flags & 512)) { // TODO: check for O_SEARCH? (== search for dir only) + return 31; + } + } + return FS.nodePermissions(node, FS.flagsToPermissionString(flags)); + },MAX_OPEN_FDS:4096,nextfd:(fd_start = 0, fd_end = FS.MAX_OPEN_FDS) => { + for (var fd = fd_start; fd <= fd_end; fd++) { + if (!FS.streams[fd]) { + return fd; + } + } + throw new FS.ErrnoError(33); + },getStream:(fd) => FS.streams[fd],createStream:(stream, fd_start, fd_end) => { + if (!FS.FSStream) { + FS.FSStream = /** @constructor */ function(){}; + FS.FSStream.prototype = { + object: { + get: function() { return this.node; }, + set: function(val) { this.node = val; } + }, + isRead: { + get: function() { return (this.flags & 2097155) !== 1; } + }, + isWrite: { + get: function() { return (this.flags & 2097155) !== 0; } + }, + isAppend: { + get: function() { return (this.flags & 1024); } + } + }; + } + // clone it, so we can return an instance of FSStream + stream = Object.assign(new FS.FSStream(), stream); + var fd = FS.nextfd(fd_start, fd_end); + stream.fd = fd; + FS.streams[fd] = stream; + return stream; + },closeStream:(fd) => { + FS.streams[fd] = null; + },chrdev_stream_ops:{open:(stream) => { + var device = FS.getDevice(stream.node.rdev); + // override node's stream ops with the device's + stream.stream_ops = device.stream_ops; + // forward the open call + if (stream.stream_ops.open) { + stream.stream_ops.open(stream); + } + },llseek:() => { + throw new FS.ErrnoError(70); + }},major:(dev) => ((dev) >> 8),minor:(dev) => ((dev) & 0xff),makedev:(ma, mi) => ((ma) << 8 | (mi)),registerDevice:(dev, ops) => { + FS.devices[dev] = { stream_ops: ops }; + },getDevice:(dev) => FS.devices[dev],getMounts:(mount) => { + var mounts = []; + var check = [mount]; + + while (check.length) { + var m = check.pop(); + + mounts.push(m); + + check.push.apply(check, m.mounts); + } + + return mounts; + },syncfs:(populate, callback) => { + if (typeof populate == 'function') { + callback = populate; + populate = false; + } + + FS.syncFSRequests++; + + if (FS.syncFSRequests > 1) { + err('warning: ' + FS.syncFSRequests + ' FS.syncfs operations in flight at once, probably just doing extra work'); + } + + var mounts = FS.getMounts(FS.root.mount); + var completed = 0; + + function doCallback(errCode) { + assert(FS.syncFSRequests > 0); + FS.syncFSRequests--; + return callback(errCode); + } + + function done(errCode) { + if (errCode) { + if (!done.errored) { + done.errored = true; + return doCallback(errCode); + } + return; + } + if (++completed >= mounts.length) { + doCallback(null); + } + }; + + // sync all mounts + mounts.forEach((mount) => { + if (!mount.type.syncfs) { + return done(null); + } + mount.type.syncfs(mount, populate, done); + }); + },mount:(type, opts, mountpoint) => { + if (typeof type == 'string') { + // The filesystem was not included, and instead we have an error + // message stored in the variable. + throw type; + } + var root = mountpoint === '/'; + var pseudo = !mountpoint; + var node; + + if (root && FS.root) { + throw new FS.ErrnoError(10); + } else if (!root && !pseudo) { + var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); + + mountpoint = lookup.path; // use the absolute path + node = lookup.node; + + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(10); + } + + if (!FS.isDir(node.mode)) { + throw new FS.ErrnoError(54); + } + } + + var mount = { + type: type, + opts: opts, + mountpoint: mountpoint, + mounts: [] + }; + + // create a root node for the fs + var mountRoot = type.mount(mount); + mountRoot.mount = mount; + mount.root = mountRoot; + + if (root) { + FS.root = mountRoot; + } else if (node) { + // set as a mountpoint + node.mounted = mount; + + // add the new mount to the current mount's children + if (node.mount) { + node.mount.mounts.push(mount); + } + } + + return mountRoot; + },unmount:(mountpoint) => { + var lookup = FS.lookupPath(mountpoint, { follow_mount: false }); + + if (!FS.isMountpoint(lookup.node)) { + throw new FS.ErrnoError(28); + } + + // destroy the nodes for this mount, and all its child mounts + var node = lookup.node; + var mount = node.mounted; + var mounts = FS.getMounts(mount); + + Object.keys(FS.nameTable).forEach((hash) => { + var current = FS.nameTable[hash]; + + while (current) { + var next = current.name_next; + + if (mounts.includes(current.mount)) { + FS.destroyNode(current); + } + + current = next; + } + }); + + // no longer a mountpoint + node.mounted = null; + + // remove this mount from the child mounts + var idx = node.mount.mounts.indexOf(mount); + assert(idx !== -1); + node.mount.mounts.splice(idx, 1); + },lookup:(parent, name) => { + return parent.node_ops.lookup(parent, name); + },mknod:(path, mode, dev) => { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + var name = PATH.basename(path); + if (!name || name === '.' || name === '..') { + throw new FS.ErrnoError(28); + } + var errCode = FS.mayCreate(parent, name); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.mknod) { + throw new FS.ErrnoError(63); + } + return parent.node_ops.mknod(parent, name, mode, dev); + },create:(path, mode) => { + mode = mode !== undefined ? mode : 438 /* 0666 */; + mode &= 4095; + mode |= 32768; + return FS.mknod(path, mode, 0); + },mkdir:(path, mode) => { + mode = mode !== undefined ? mode : 511 /* 0777 */; + mode &= 511 | 512; + mode |= 16384; + return FS.mknod(path, mode, 0); + },mkdirTree:(path, mode) => { + var dirs = path.split('/'); + var d = ''; + for (var i = 0; i < dirs.length; ++i) { + if (!dirs[i]) continue; + d += '/' + dirs[i]; + try { + FS.mkdir(d, mode); + } catch(e) { + if (e.errno != 20) throw e; + } + } + },mkdev:(path, mode, dev) => { + if (typeof dev == 'undefined') { + dev = mode; + mode = 438 /* 0666 */; + } + mode |= 8192; + return FS.mknod(path, mode, dev); + },symlink:(oldpath, newpath) => { + if (!PATH_FS.resolve(oldpath)) { + throw new FS.ErrnoError(44); + } + var lookup = FS.lookupPath(newpath, { parent: true }); + var parent = lookup.node; + if (!parent) { + throw new FS.ErrnoError(44); + } + var newname = PATH.basename(newpath); + var errCode = FS.mayCreate(parent, newname); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.symlink) { + throw new FS.ErrnoError(63); + } + return parent.node_ops.symlink(parent, newname, oldpath); + },rename:(old_path, new_path) => { + var old_dirname = PATH.dirname(old_path); + var new_dirname = PATH.dirname(new_path); + var old_name = PATH.basename(old_path); + var new_name = PATH.basename(new_path); + // parents must exist + var lookup, old_dir, new_dir; + + // let the errors from non existant directories percolate up + lookup = FS.lookupPath(old_path, { parent: true }); + old_dir = lookup.node; + lookup = FS.lookupPath(new_path, { parent: true }); + new_dir = lookup.node; + + if (!old_dir || !new_dir) throw new FS.ErrnoError(44); + // need to be part of the same mount + if (old_dir.mount !== new_dir.mount) { + throw new FS.ErrnoError(75); + } + // source must exist + var old_node = FS.lookupNode(old_dir, old_name); + // old path should not be an ancestor of the new path + var relative = PATH_FS.relative(old_path, new_dirname); + if (relative.charAt(0) !== '.') { + throw new FS.ErrnoError(28); + } + // new path should not be an ancestor of the old path + relative = PATH_FS.relative(new_path, old_dirname); + if (relative.charAt(0) !== '.') { + throw new FS.ErrnoError(55); + } + // see if the new path already exists + var new_node; + try { + new_node = FS.lookupNode(new_dir, new_name); + } catch (e) { + // not fatal + } + // early out if nothing needs to change + if (old_node === new_node) { + return; + } + // we'll need to delete the old entry + var isdir = FS.isDir(old_node.mode); + var errCode = FS.mayDelete(old_dir, old_name, isdir); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + // need delete permissions if we'll be overwriting. + // need create permissions if new doesn't already exist. + errCode = new_node ? + FS.mayDelete(new_dir, new_name, isdir) : + FS.mayCreate(new_dir, new_name); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!old_dir.node_ops.rename) { + throw new FS.ErrnoError(63); + } + if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) { + throw new FS.ErrnoError(10); + } + // if we are going to change the parent, check write permissions + if (new_dir !== old_dir) { + errCode = FS.nodePermissions(old_dir, 'w'); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + } + // remove the node from the lookup hash + FS.hashRemoveNode(old_node); + // do the underlying fs rename + try { + old_dir.node_ops.rename(old_node, new_dir, new_name); + } catch (e) { + throw e; + } finally { + // add the node back to the hash (in case node_ops.rename + // changed its name) + FS.hashAddNode(old_node); + } + },rmdir:(path) => { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + var name = PATH.basename(path); + var node = FS.lookupNode(parent, name); + var errCode = FS.mayDelete(parent, name, true); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.rmdir) { + throw new FS.ErrnoError(63); + } + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(10); + } + parent.node_ops.rmdir(parent, name); + FS.destroyNode(node); + },readdir:(path) => { + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + if (!node.node_ops.readdir) { + throw new FS.ErrnoError(54); + } + return node.node_ops.readdir(node); + },unlink:(path) => { + var lookup = FS.lookupPath(path, { parent: true }); + var parent = lookup.node; + if (!parent) { + throw new FS.ErrnoError(44); + } + var name = PATH.basename(path); + var node = FS.lookupNode(parent, name); + var errCode = FS.mayDelete(parent, name, false); + if (errCode) { + // According to POSIX, we should map EISDIR to EPERM, but + // we instead do what Linux does (and we must, as we use + // the musl linux libc). + throw new FS.ErrnoError(errCode); + } + if (!parent.node_ops.unlink) { + throw new FS.ErrnoError(63); + } + if (FS.isMountpoint(node)) { + throw new FS.ErrnoError(10); + } + parent.node_ops.unlink(parent, name); + FS.destroyNode(node); + },readlink:(path) => { + var lookup = FS.lookupPath(path); + var link = lookup.node; + if (!link) { + throw new FS.ErrnoError(44); + } + if (!link.node_ops.readlink) { + throw new FS.ErrnoError(28); + } + return PATH_FS.resolve(FS.getPath(link.parent), link.node_ops.readlink(link)); + },stat:(path, dontFollow) => { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + var node = lookup.node; + if (!node) { + throw new FS.ErrnoError(44); + } + if (!node.node_ops.getattr) { + throw new FS.ErrnoError(63); + } + return node.node_ops.getattr(node); + },lstat:(path) => { + return FS.stat(path, true); + },chmod:(path, mode, dontFollow) => { + var node; + if (typeof path == 'string') { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + node = lookup.node; + } else { + node = path; + } + if (!node.node_ops.setattr) { + throw new FS.ErrnoError(63); + } + node.node_ops.setattr(node, { + mode: (mode & 4095) | (node.mode & ~4095), + timestamp: Date.now() + }); + },lchmod:(path, mode) => { + FS.chmod(path, mode, true); + },fchmod:(fd, mode) => { + var stream = FS.getStream(fd); + if (!stream) { + throw new FS.ErrnoError(8); + } + FS.chmod(stream.node, mode); + },chown:(path, uid, gid, dontFollow) => { + var node; + if (typeof path == 'string') { + var lookup = FS.lookupPath(path, { follow: !dontFollow }); + node = lookup.node; + } else { + node = path; + } + if (!node.node_ops.setattr) { + throw new FS.ErrnoError(63); + } + node.node_ops.setattr(node, { + timestamp: Date.now() + // we ignore the uid / gid for now + }); + },lchown:(path, uid, gid) => { + FS.chown(path, uid, gid, true); + },fchown:(fd, uid, gid) => { + var stream = FS.getStream(fd); + if (!stream) { + throw new FS.ErrnoError(8); + } + FS.chown(stream.node, uid, gid); + },truncate:(path, len) => { + if (len < 0) { + throw new FS.ErrnoError(28); + } + var node; + if (typeof path == 'string') { + var lookup = FS.lookupPath(path, { follow: true }); + node = lookup.node; + } else { + node = path; + } + if (!node.node_ops.setattr) { + throw new FS.ErrnoError(63); + } + if (FS.isDir(node.mode)) { + throw new FS.ErrnoError(31); + } + if (!FS.isFile(node.mode)) { + throw new FS.ErrnoError(28); + } + var errCode = FS.nodePermissions(node, 'w'); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + node.node_ops.setattr(node, { + size: len, + timestamp: Date.now() + }); + },ftruncate:(fd, len) => { + var stream = FS.getStream(fd); + if (!stream) { + throw new FS.ErrnoError(8); + } + if ((stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(28); + } + FS.truncate(stream.node, len); + },utime:(path, atime, mtime) => { + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + node.node_ops.setattr(node, { + timestamp: Math.max(atime, mtime) + }); + },open:(path, flags, mode, fd_start, fd_end) => { + if (path === "") { + throw new FS.ErrnoError(44); + } + flags = typeof flags == 'string' ? FS.modeStringToFlags(flags) : flags; + mode = typeof mode == 'undefined' ? 438 /* 0666 */ : mode; + if ((flags & 64)) { + mode = (mode & 4095) | 32768; + } else { + mode = 0; + } + var node; + if (typeof path == 'object') { + node = path; + } else { + path = PATH.normalize(path); + try { + var lookup = FS.lookupPath(path, { + follow: !(flags & 131072) + }); + node = lookup.node; + } catch (e) { + // ignore + } + } + // perhaps we need to create the node + var created = false; + if ((flags & 64)) { + if (node) { + // if O_CREAT and O_EXCL are set, error out if the node already exists + if ((flags & 128)) { + throw new FS.ErrnoError(20); + } + } else { + // node doesn't exist, try to create it + node = FS.mknod(path, mode, 0); + created = true; + } + } + if (!node) { + throw new FS.ErrnoError(44); + } + // can't truncate a device + if (FS.isChrdev(node.mode)) { + flags &= ~512; + } + // if asked only for a directory, then this must be one + if ((flags & 65536) && !FS.isDir(node.mode)) { + throw new FS.ErrnoError(54); + } + // check permissions, if this is not a file we just created now (it is ok to + // create and write to a file with read-only permissions; it is read-only + // for later use) + if (!created) { + var errCode = FS.mayOpen(node, flags); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + } + // do truncation if necessary + if ((flags & 512)) { + FS.truncate(node, 0); + } + // we've already handled these, don't pass down to the underlying vfs + flags &= ~(128 | 512 | 131072); + + // register the stream with the filesystem + var stream = FS.createStream({ + node: node, + path: FS.getPath(node), // we want the absolute path to the node + flags: flags, + seekable: true, + position: 0, + stream_ops: node.stream_ops, + // used by the file family libc calls (fopen, fwrite, ferror, etc.) + ungotten: [], + error: false + }, fd_start, fd_end); + // call the new stream's open function + if (stream.stream_ops.open) { + stream.stream_ops.open(stream); + } + if (Module['logReadFiles'] && !(flags & 1)) { + if (!FS.readFiles) FS.readFiles = {}; + if (!(path in FS.readFiles)) { + FS.readFiles[path] = 1; + } + } + return stream; + },close:(stream) => { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if (stream.getdents) stream.getdents = null; // free readdir state + try { + if (stream.stream_ops.close) { + stream.stream_ops.close(stream); + } + } catch (e) { + throw e; + } finally { + FS.closeStream(stream.fd); + } + stream.fd = null; + },isClosed:(stream) => { + return stream.fd === null; + },llseek:(stream, offset, whence) => { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if (!stream.seekable || !stream.stream_ops.llseek) { + throw new FS.ErrnoError(70); + } + if (whence != 0 && whence != 1 && whence != 2) { + throw new FS.ErrnoError(28); + } + stream.position = stream.stream_ops.llseek(stream, offset, whence); + stream.ungotten = []; + return stream.position; + },read:(stream, buffer, offset, length, position) => { + if (length < 0 || position < 0) { + throw new FS.ErrnoError(28); + } + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if ((stream.flags & 2097155) === 1) { + throw new FS.ErrnoError(8); + } + if (FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(31); + } + if (!stream.stream_ops.read) { + throw new FS.ErrnoError(28); + } + var seeking = typeof position != 'undefined'; + if (!seeking) { + position = stream.position; + } else if (!stream.seekable) { + throw new FS.ErrnoError(70); + } + var bytesRead = stream.stream_ops.read(stream, buffer, offset, length, position); + if (!seeking) stream.position += bytesRead; + return bytesRead; + },write:(stream, buffer, offset, length, position, canOwn) => { + if (length < 0 || position < 0) { + throw new FS.ErrnoError(28); + } + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if ((stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(8); + } + if (FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(31); + } + if (!stream.stream_ops.write) { + throw new FS.ErrnoError(28); + } + if (stream.seekable && stream.flags & 1024) { + // seek to the end before writing in append mode + FS.llseek(stream, 0, 2); + } + var seeking = typeof position != 'undefined'; + if (!seeking) { + position = stream.position; + } else if (!stream.seekable) { + throw new FS.ErrnoError(70); + } + var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn); + if (!seeking) stream.position += bytesWritten; + return bytesWritten; + },allocate:(stream, offset, length) => { + if (FS.isClosed(stream)) { + throw new FS.ErrnoError(8); + } + if (offset < 0 || length <= 0) { + throw new FS.ErrnoError(28); + } + if ((stream.flags & 2097155) === 0) { + throw new FS.ErrnoError(8); + } + if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) { + throw new FS.ErrnoError(43); + } + if (!stream.stream_ops.allocate) { + throw new FS.ErrnoError(138); + } + stream.stream_ops.allocate(stream, offset, length); + },mmap:(stream, address, length, position, prot, flags) => { + // User requests writing to file (prot & PROT_WRITE != 0). + // Checking if we have permissions to write to the file unless + // MAP_PRIVATE flag is set. According to POSIX spec it is possible + // to write to file opened in read-only mode with MAP_PRIVATE flag, + // as all modifications will be visible only in the memory of + // the current process. + if ((prot & 2) !== 0 + && (flags & 2) === 0 + && (stream.flags & 2097155) !== 2) { + throw new FS.ErrnoError(2); + } + if ((stream.flags & 2097155) === 1) { + throw new FS.ErrnoError(2); + } + if (!stream.stream_ops.mmap) { + throw new FS.ErrnoError(43); + } + return stream.stream_ops.mmap(stream, address, length, position, prot, flags); + },msync:(stream, buffer, offset, length, mmapFlags) => { + if (!stream || !stream.stream_ops.msync) { + return 0; + } + return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags); + },munmap:(stream) => 0,ioctl:(stream, cmd, arg) => { + if (!stream.stream_ops.ioctl) { + throw new FS.ErrnoError(59); + } + return stream.stream_ops.ioctl(stream, cmd, arg); + },readFile:(path, opts = {}) => { + opts.flags = opts.flags || 0; + opts.encoding = opts.encoding || 'binary'; + if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') { + throw new Error('Invalid encoding type "' + opts.encoding + '"'); + } + var ret; + var stream = FS.open(path, opts.flags); + var stat = FS.stat(path); + var length = stat.size; + var buf = new Uint8Array(length); + FS.read(stream, buf, 0, length, 0); + if (opts.encoding === 'utf8') { + ret = UTF8ArrayToString(buf, 0); + } else if (opts.encoding === 'binary') { + ret = buf; + } + FS.close(stream); + return ret; + },writeFile:(path, data, opts = {}) => { + opts.flags = opts.flags || 577; + var stream = FS.open(path, opts.flags, opts.mode); + if (typeof data == 'string') { + var buf = new Uint8Array(lengthBytesUTF8(data)+1); + var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length); + FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn); + } else if (ArrayBuffer.isView(data)) { + FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn); + } else { + throw new Error('Unsupported data type'); + } + FS.close(stream); + },cwd:() => FS.currentPath,chdir:(path) => { + var lookup = FS.lookupPath(path, { follow: true }); + if (lookup.node === null) { + throw new FS.ErrnoError(44); + } + if (!FS.isDir(lookup.node.mode)) { + throw new FS.ErrnoError(54); + } + var errCode = FS.nodePermissions(lookup.node, 'x'); + if (errCode) { + throw new FS.ErrnoError(errCode); + } + FS.currentPath = lookup.path; + },createDefaultDirectories:() => { + FS.mkdir('/tmp'); + FS.mkdir('/home'); + FS.mkdir('/home/web_user'); + },createDefaultDevices:() => { + // create /dev + FS.mkdir('/dev'); + // setup /dev/null + FS.registerDevice(FS.makedev(1, 3), { + read: () => 0, + write: (stream, buffer, offset, length, pos) => length, + }); + FS.mkdev('/dev/null', FS.makedev(1, 3)); + // setup /dev/tty and /dev/tty1 + // stderr needs to print output using err() rather than out() + // so we register a second tty just for it. + TTY.register(FS.makedev(5, 0), TTY.default_tty_ops); + TTY.register(FS.makedev(6, 0), TTY.default_tty1_ops); + FS.mkdev('/dev/tty', FS.makedev(5, 0)); + FS.mkdev('/dev/tty1', FS.makedev(6, 0)); + // setup /dev/[u]random + var random_device = getRandomDevice(); + FS.createDevice('/dev', 'random', random_device); + FS.createDevice('/dev', 'urandom', random_device); + // we're not going to emulate the actual shm device, + // just create the tmp dirs that reside in it commonly + FS.mkdir('/dev/shm'); + FS.mkdir('/dev/shm/tmp'); + },createSpecialDirectories:() => { + // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the + // name of the stream for fd 6 (see test_unistd_ttyname) + FS.mkdir('/proc'); + var proc_self = FS.mkdir('/proc/self'); + FS.mkdir('/proc/self/fd'); + FS.mount({ + mount: () => { + var node = FS.createNode(proc_self, 'fd', 16384 | 511 /* 0777 */, 73); + node.node_ops = { + lookup: (parent, name) => { + var fd = +name; + var stream = FS.getStream(fd); + if (!stream) throw new FS.ErrnoError(8); + var ret = { + parent: null, + mount: { mountpoint: 'fake' }, + node_ops: { readlink: () => stream.path }, + }; + ret.parent = ret; // make it look like a simple root node + return ret; + } + }; + return node; + } + }, {}, '/proc/self/fd'); + },createStandardStreams:() => { + // TODO deprecate the old functionality of a single + // input / output callback and that utilizes FS.createDevice + // and instead require a unique set of stream ops + + // by default, we symlink the standard streams to the + // default tty devices. however, if the standard streams + // have been overwritten we create a unique device for + // them instead. + if (Module['stdin']) { + FS.createDevice('/dev', 'stdin', Module['stdin']); + } else { + FS.symlink('/dev/tty', '/dev/stdin'); + } + if (Module['stdout']) { + FS.createDevice('/dev', 'stdout', null, Module['stdout']); + } else { + FS.symlink('/dev/tty', '/dev/stdout'); + } + if (Module['stderr']) { + FS.createDevice('/dev', 'stderr', null, Module['stderr']); + } else { + FS.symlink('/dev/tty1', '/dev/stderr'); + } + + // open default streams for the stdin, stdout and stderr devices + var stdin = FS.open('/dev/stdin', 0); + var stdout = FS.open('/dev/stdout', 1); + var stderr = FS.open('/dev/stderr', 1); + assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')'); + assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')'); + assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')'); + },ensureErrnoError:() => { + if (FS.ErrnoError) return; + FS.ErrnoError = /** @this{Object} */ function ErrnoError(errno, node) { + this.node = node; + this.setErrno = /** @this{Object} */ function(errno) { + this.errno = errno; + for (var key in ERRNO_CODES) { + if (ERRNO_CODES[key] === errno) { + this.code = key; + break; + } + } + }; + this.setErrno(errno); + this.message = ERRNO_MESSAGES[errno]; + + // Try to get a maximally helpful stack trace. On Node.js, getting Error.stack + // now ensures it shows what we want. + if (this.stack) { + // Define the stack property for Node.js 4, which otherwise errors on the next line. + Object.defineProperty(this, "stack", { value: (new Error).stack, writable: true }); + this.stack = demangleAll(this.stack); + } + }; + FS.ErrnoError.prototype = new Error(); + FS.ErrnoError.prototype.constructor = FS.ErrnoError; + // Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info) + [44].forEach((code) => { + FS.genericErrors[code] = new FS.ErrnoError(code); + FS.genericErrors[code].stack = ''; + }); + },staticInit:() => { + FS.ensureErrnoError(); + + FS.nameTable = new Array(4096); + + FS.mount(MEMFS, {}, '/'); + + FS.createDefaultDirectories(); + FS.createDefaultDevices(); + FS.createSpecialDirectories(); + + FS.filesystems = { + 'MEMFS': MEMFS, + }; + },init:(input, output, error) => { + assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)'); + FS.init.initialized = true; + + FS.ensureErrnoError(); + + // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here + Module['stdin'] = input || Module['stdin']; + Module['stdout'] = output || Module['stdout']; + Module['stderr'] = error || Module['stderr']; + + FS.createStandardStreams(); + },quit:() => { + FS.init.initialized = false; + // Call musl-internal function to close all stdio streams, so nothing is + // left in internal buffers. + ___stdio_exit(); + // close all of our streams + for (var i = 0; i < FS.streams.length; i++) { + var stream = FS.streams[i]; + if (!stream) { + continue; + } + FS.close(stream); + } + },getMode:(canRead, canWrite) => { + var mode = 0; + if (canRead) mode |= 292 | 73; + if (canWrite) mode |= 146; + return mode; + },findObject:(path, dontResolveLastLink) => { + var ret = FS.analyzePath(path, dontResolveLastLink); + if (ret.exists) { + return ret.object; + } else { + return null; + } + },analyzePath:(path, dontResolveLastLink) => { + // operate from within the context of the symlink's target + try { + var lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); + path = lookup.path; + } catch (e) { + } + var ret = { + isRoot: false, exists: false, error: 0, name: null, path: null, object: null, + parentExists: false, parentPath: null, parentObject: null + }; + try { + var lookup = FS.lookupPath(path, { parent: true }); + ret.parentExists = true; + ret.parentPath = lookup.path; + ret.parentObject = lookup.node; + ret.name = PATH.basename(path); + lookup = FS.lookupPath(path, { follow: !dontResolveLastLink }); + ret.exists = true; + ret.path = lookup.path; + ret.object = lookup.node; + ret.name = lookup.node.name; + ret.isRoot = lookup.path === '/'; + } catch (e) { + ret.error = e.errno; + }; + return ret; + },createPath:(parent, path, canRead, canWrite) => { + parent = typeof parent == 'string' ? parent : FS.getPath(parent); + var parts = path.split('/').reverse(); + while (parts.length) { + var part = parts.pop(); + if (!part) continue; + var current = PATH.join2(parent, part); + try { + FS.mkdir(current); + } catch (e) { + // ignore EEXIST + } + parent = current; + } + return current; + },createFile:(parent, name, properties, canRead, canWrite) => { + var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name); + var mode = FS.getMode(canRead, canWrite); + return FS.create(path, mode); + },createDataFile:(parent, name, data, canRead, canWrite, canOwn) => { + var path = name; + if (parent) { + parent = typeof parent == 'string' ? parent : FS.getPath(parent); + path = name ? PATH.join2(parent, name) : parent; + } + var mode = FS.getMode(canRead, canWrite); + var node = FS.create(path, mode); + if (data) { + if (typeof data == 'string') { + var arr = new Array(data.length); + for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i); + data = arr; + } + // make sure we can write to the file + FS.chmod(node, mode | 146); + var stream = FS.open(node, 577); + FS.write(stream, data, 0, data.length, 0, canOwn); + FS.close(stream); + FS.chmod(node, mode); + } + return node; + },createDevice:(parent, name, input, output) => { + var path = PATH.join2(typeof parent == 'string' ? parent : FS.getPath(parent), name); + var mode = FS.getMode(!!input, !!output); + if (!FS.createDevice.major) FS.createDevice.major = 64; + var dev = FS.makedev(FS.createDevice.major++, 0); + // Create a fake device that a set of stream ops to emulate + // the old behavior. + FS.registerDevice(dev, { + open: (stream) => { + stream.seekable = false; + }, + close: (stream) => { + // flush any pending line data + if (output && output.buffer && output.buffer.length) { + output(10); + } + }, + read: (stream, buffer, offset, length, pos /* ignored */) => { + var bytesRead = 0; + for (var i = 0; i < length; i++) { + var result; + try { + result = input(); + } catch (e) { + throw new FS.ErrnoError(29); + } + if (result === undefined && bytesRead === 0) { + throw new FS.ErrnoError(6); + } + if (result === null || result === undefined) break; + bytesRead++; + buffer[offset+i] = result; + } + if (bytesRead) { + stream.node.timestamp = Date.now(); + } + return bytesRead; + }, + write: (stream, buffer, offset, length, pos) => { + for (var i = 0; i < length; i++) { + try { + output(buffer[offset+i]); + } catch (e) { + throw new FS.ErrnoError(29); + } + } + if (length) { + stream.node.timestamp = Date.now(); + } + return i; + } + }); + return FS.mkdev(path, mode, dev); + },forceLoadFile:(obj) => { + if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true; + if (typeof XMLHttpRequest != 'undefined') { + throw new Error("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread."); + } else if (read_) { + // Command-line. + try { + // WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as + // read() will try to parse UTF8. + obj.contents = intArrayFromString(read_(obj.url), true); + obj.usedBytes = obj.contents.length; + } catch (e) { + throw new FS.ErrnoError(29); + } + } else { + throw new Error('Cannot load without read() or XMLHttpRequest.'); + } + },createLazyFile:(parent, name, url, canRead, canWrite) => { + // Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse. + /** @constructor */ + function LazyUint8Array() { + this.lengthKnown = false; + this.chunks = []; // Loaded chunks. Index is the chunk number + } + LazyUint8Array.prototype.get = /** @this{Object} */ function LazyUint8Array_get(idx) { + if (idx > this.length-1 || idx < 0) { + return undefined; + } + var chunkOffset = idx % this.chunkSize; + var chunkNum = (idx / this.chunkSize)|0; + return this.getter(chunkNum)[chunkOffset]; + }; + LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) { + this.getter = getter; + }; + LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() { + // Find length + var xhr = new XMLHttpRequest(); + xhr.open('HEAD', url, false); + xhr.send(null); + if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status); + var datalength = Number(xhr.getResponseHeader("Content-length")); + var header; + var hasByteServing = (header = xhr.getResponseHeader("Accept-Ranges")) && header === "bytes"; + var usesGzip = (header = xhr.getResponseHeader("Content-Encoding")) && header === "gzip"; + + var chunkSize = 1024*1024; // Chunk size in bytes + + if (!hasByteServing) chunkSize = datalength; + + // Function to get a range from the remote URL. + var doXHR = (from, to) => { + if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!"); + if (to > datalength-1) throw new Error("only " + datalength + " bytes available! programmer error!"); + + // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available. + var xhr = new XMLHttpRequest(); + xhr.open('GET', url, false); + if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to); + + // Some hints to the browser that we want binary data. + xhr.responseType = 'arraybuffer'; + if (xhr.overrideMimeType) { + xhr.overrideMimeType('text/plain; charset=x-user-defined'); + } + + xhr.send(null); + if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status); + if (xhr.response !== undefined) { + return new Uint8Array(/** @type{Array} */(xhr.response || [])); + } else { + return intArrayFromString(xhr.responseText || '', true); + } + }; + var lazyArray = this; + lazyArray.setDataGetter((chunkNum) => { + var start = chunkNum * chunkSize; + var end = (chunkNum+1) * chunkSize - 1; // including this byte + end = Math.min(end, datalength-1); // if datalength-1 is selected, this is the last block + if (typeof lazyArray.chunks[chunkNum] == 'undefined') { + lazyArray.chunks[chunkNum] = doXHR(start, end); + } + if (typeof lazyArray.chunks[chunkNum] == 'undefined') throw new Error('doXHR failed!'); + return lazyArray.chunks[chunkNum]; + }); + + if (usesGzip || !datalength) { + // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length + chunkSize = datalength = 1; // this will force getter(0)/doXHR do download the whole file + datalength = this.getter(0).length; + chunkSize = datalength; + out("LazyFiles on gzip forces download of the whole file when length is accessed"); + } + + this._length = datalength; + this._chunkSize = chunkSize; + this.lengthKnown = true; + }; + if (typeof XMLHttpRequest != 'undefined') { + if (!ENVIRONMENT_IS_WORKER) throw 'Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc'; + var lazyArray = new LazyUint8Array(); + Object.defineProperties(lazyArray, { + length: { + get: /** @this{Object} */ function() { + if (!this.lengthKnown) { + this.cacheLength(); + } + return this._length; + } + }, + chunkSize: { + get: /** @this{Object} */ function() { + if (!this.lengthKnown) { + this.cacheLength(); + } + return this._chunkSize; + } + } + }); + + var properties = { isDevice: false, contents: lazyArray }; + } else { + var properties = { isDevice: false, url: url }; + } + + var node = FS.createFile(parent, name, properties, canRead, canWrite); + // This is a total hack, but I want to get this lazy file code out of the + // core of MEMFS. If we want to keep this lazy file concept I feel it should + // be its own thin LAZYFS proxying calls to MEMFS. + if (properties.contents) { + node.contents = properties.contents; + } else if (properties.url) { + node.contents = null; + node.url = properties.url; + } + // Add a function that defers querying the file size until it is asked the first time. + Object.defineProperties(node, { + usedBytes: { + get: /** @this {FSNode} */ function() { return this.contents.length; } + } + }); + // override each stream op with one that tries to force load the lazy file first + var stream_ops = {}; + var keys = Object.keys(node.stream_ops); + keys.forEach((key) => { + var fn = node.stream_ops[key]; + stream_ops[key] = function forceLoadLazyFile() { + FS.forceLoadFile(node); + return fn.apply(null, arguments); + }; + }); + // use a custom read function + stream_ops.read = (stream, buffer, offset, length, position) => { + FS.forceLoadFile(node); + var contents = stream.node.contents; + if (position >= contents.length) + return 0; + var size = Math.min(contents.length - position, length); + assert(size >= 0); + if (contents.slice) { // normal array + for (var i = 0; i < size; i++) { + buffer[offset + i] = contents[position + i]; + } + } else { + for (var i = 0; i < size; i++) { // LazyUint8Array from sync binary XHR + buffer[offset + i] = contents.get(position + i); + } + } + return size; + }; + node.stream_ops = stream_ops; + return node; + },createPreloadedFile:(parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => { + // TODO we should allow people to just pass in a complete filename instead + // of parent and name being that we just join them anyways + var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent; + var dep = getUniqueRunDependency('cp ' + fullname); // might have several active requests for the same fullname + function processData(byteArray) { + function finish(byteArray) { + if (preFinish) preFinish(); + if (!dontCreateFile) { + FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn); + } + if (onload) onload(); + removeRunDependency(dep); + } + if (Browser.handledByPreloadPlugin(byteArray, fullname, finish, () => { + if (onerror) onerror(); + removeRunDependency(dep); + })) { + return; + } + finish(byteArray); + } + addRunDependency(dep); + if (typeof url == 'string') { + asyncLoad(url, (byteArray) => processData(byteArray), onerror); + } else { + processData(url); + } + },indexedDB:() => { + return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB; + },DB_NAME:() => { + return 'EM_FS_' + window.location.pathname; + },DB_VERSION:20,DB_STORE_NAME:"FILE_DATA",saveFilesToDB:(paths, onload, onerror) => { + onload = onload || (() => {}); + onerror = onerror || (() => {}); + var indexedDB = FS.indexedDB(); + try { + var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION); + } catch (e) { + return onerror(e); + } + openRequest.onupgradeneeded = () => { + out('creating db'); + var db = openRequest.result; + db.createObjectStore(FS.DB_STORE_NAME); + }; + openRequest.onsuccess = () => { + var db = openRequest.result; + var transaction = db.transaction([FS.DB_STORE_NAME], 'readwrite'); + var files = transaction.objectStore(FS.DB_STORE_NAME); + var ok = 0, fail = 0, total = paths.length; + function finish() { + if (fail == 0) onload(); else onerror(); + } + paths.forEach((path) => { + var putRequest = files.put(FS.analyzePath(path).object.contents, path); + putRequest.onsuccess = () => { ok++; if (ok + fail == total) finish() }; + putRequest.onerror = () => { fail++; if (ok + fail == total) finish() }; + }); + transaction.onerror = onerror; + }; + openRequest.onerror = onerror; + },loadFilesFromDB:(paths, onload, onerror) => { + onload = onload || (() => {}); + onerror = onerror || (() => {}); + var indexedDB = FS.indexedDB(); + try { + var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION); + } catch (e) { + return onerror(e); + } + openRequest.onupgradeneeded = onerror; // no database to load from + openRequest.onsuccess = () => { + var db = openRequest.result; + try { + var transaction = db.transaction([FS.DB_STORE_NAME], 'readonly'); + } catch(e) { + onerror(e); + return; + } + var files = transaction.objectStore(FS.DB_STORE_NAME); + var ok = 0, fail = 0, total = paths.length; + function finish() { + if (fail == 0) onload(); else onerror(); + } + paths.forEach((path) => { + var getRequest = files.get(path); + getRequest.onsuccess = () => { + if (FS.analyzePath(path).exists) { + FS.unlink(path); + } + FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true); + ok++; + if (ok + fail == total) finish(); + }; + getRequest.onerror = () => { fail++; if (ok + fail == total) finish() }; + }); + transaction.onerror = onerror; + }; + openRequest.onerror = onerror; + },absolutePath:() => { + abort('FS.absolutePath has been removed; use PATH_FS.resolve instead'); + },createFolder:() => { + abort('FS.createFolder has been removed; use FS.mkdir instead'); + },createLink:() => { + abort('FS.createLink has been removed; use FS.symlink instead'); + },joinPath:() => { + abort('FS.joinPath has been removed; use PATH.join instead'); + },mmapAlloc:() => { + abort('FS.mmapAlloc has been replaced by the top level function mmapAlloc'); + },standardizePath:() => { + abort('FS.standardizePath has been removed; use PATH.normalize instead'); + }}; + var SYSCALLS = {DEFAULT_POLLMASK:5,calculateAt:function(dirfd, path, allowEmpty) { + if (path[0] === '/') { + return path; + } + // relative path + var dir; + if (dirfd === -100) { + dir = FS.cwd(); + } else { + var dirstream = FS.getStream(dirfd); + if (!dirstream) throw new FS.ErrnoError(8); + dir = dirstream.path; + } + if (path.length == 0) { + if (!allowEmpty) { + throw new FS.ErrnoError(44);; + } + return dir; + } + return PATH.join2(dir, path); + },doStat:function(func, path, buf) { + try { + var stat = func(path); + } catch (e) { + if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) { + // an error occurred while trying to look up the path; we should just report ENOTDIR + return -54; + } + throw e; + } + HEAP32[((buf)>>2)] = stat.dev; + HEAP32[(((buf)+(4))>>2)] = 0; + HEAP32[(((buf)+(8))>>2)] = stat.ino; + HEAP32[(((buf)+(12))>>2)] = stat.mode; + HEAP32[(((buf)+(16))>>2)] = stat.nlink; + HEAP32[(((buf)+(20))>>2)] = stat.uid; + HEAP32[(((buf)+(24))>>2)] = stat.gid; + HEAP32[(((buf)+(28))>>2)] = stat.rdev; + HEAP32[(((buf)+(32))>>2)] = 0; + (tempI64 = [stat.size>>>0,(tempDouble=stat.size,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(40))>>2)] = tempI64[0],HEAP32[(((buf)+(44))>>2)] = tempI64[1]); + HEAP32[(((buf)+(48))>>2)] = 4096; + HEAP32[(((buf)+(52))>>2)] = stat.blocks; + HEAP32[(((buf)+(56))>>2)] = (stat.atime.getTime() / 1000)|0; + HEAP32[(((buf)+(60))>>2)] = 0; + HEAP32[(((buf)+(64))>>2)] = (stat.mtime.getTime() / 1000)|0; + HEAP32[(((buf)+(68))>>2)] = 0; + HEAP32[(((buf)+(72))>>2)] = (stat.ctime.getTime() / 1000)|0; + HEAP32[(((buf)+(76))>>2)] = 0; + (tempI64 = [stat.ino>>>0,(tempDouble=stat.ino,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(80))>>2)] = tempI64[0],HEAP32[(((buf)+(84))>>2)] = tempI64[1]); + return 0; + },doMsync:function(addr, stream, len, flags, offset) { + var buffer = HEAPU8.slice(addr, addr + len); + FS.msync(stream, buffer, offset, len, flags); + },doMkdir:function(path, mode) { + // remove a trailing slash, if one - /a/b/ has basename of '', but + // we want to create b in the context of this function + path = PATH.normalize(path); + if (path[path.length-1] === '/') path = path.substr(0, path.length-1); + FS.mkdir(path, mode, 0); + return 0; + },doMknod:function(path, mode, dev) { + // we don't want this in the JS API as it uses mknod to create all nodes. + switch (mode & 61440) { + case 32768: + case 8192: + case 24576: + case 4096: + case 49152: + break; + default: return -28; + } + FS.mknod(path, mode, dev); + return 0; + },doReadlink:function(path, buf, bufsize) { + if (bufsize <= 0) return -28; + var ret = FS.readlink(path); + + var len = Math.min(bufsize, lengthBytesUTF8(ret)); + var endChar = HEAP8[buf+len]; + stringToUTF8(ret, buf, bufsize+1); + // readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!) + // stringToUTF8() always appends a null byte, so restore the character under the null byte after the write. + HEAP8[buf+len] = endChar; + + return len; + },doAccess:function(path, amode) { + if (amode & ~7) { + // need a valid mode + return -28; + } + var lookup = FS.lookupPath(path, { follow: true }); + var node = lookup.node; + if (!node) { + return -44; + } + var perms = ''; + if (amode & 4) perms += 'r'; + if (amode & 2) perms += 'w'; + if (amode & 1) perms += 'x'; + if (perms /* otherwise, they've just passed F_OK */ && FS.nodePermissions(node, perms)) { + return -2; + } + return 0; + },doReadv:function(stream, iov, iovcnt, offset) { + var ret = 0; + for (var i = 0; i < iovcnt; i++) { + var ptr = HEAP32[(((iov)+(i*8))>>2)]; + var len = HEAP32[(((iov)+(i*8 + 4))>>2)]; + var curr = FS.read(stream, HEAP8,ptr, len, offset); + if (curr < 0) return -1; + ret += curr; + if (curr < len) break; // nothing more to read + } + return ret; + },doWritev:function(stream, iov, iovcnt, offset) { + var ret = 0; + for (var i = 0; i < iovcnt; i++) { + var ptr = HEAP32[(((iov)+(i*8))>>2)]; + var len = HEAP32[(((iov)+(i*8 + 4))>>2)]; + var curr = FS.write(stream, HEAP8,ptr, len, offset); + if (curr < 0) return -1; + ret += curr; + } + return ret; + },varargs:undefined,get:function() { + assert(SYSCALLS.varargs != undefined); + SYSCALLS.varargs += 4; + var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)]; + return ret; + },getStr:function(ptr) { + var ret = UTF8ToString(ptr); + return ret; + },getStreamFromFD:function(fd) { + var stream = FS.getStream(fd); + if (!stream) throw new FS.ErrnoError(8); + return stream; + },get64:function(low, high) { + if (low >= 0) assert(high === 0); + else assert(high === -1); + return low; + }}; + function _fd_close(fd) { + try { + + var stream = SYSCALLS.getStreamFromFD(fd); + FS.close(stream); + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e; + return e.errno; + } + } + _fd_close.sig = 'ii'; + + function _fd_seek(fd, offset_low, offset_high, whence, newOffset) { + try { + + + var stream = SYSCALLS.getStreamFromFD(fd); + var HIGH_OFFSET = 0x100000000; // 2^32 + // use an unsigned operator on low and shift high by 32-bits + var offset = offset_high * HIGH_OFFSET + (offset_low >>> 0); + + var DOUBLE_LIMIT = 0x20000000000000; // 2^53 + // we also check for equality since DOUBLE_LIMIT + 1 == DOUBLE_LIMIT + if (offset <= -DOUBLE_LIMIT || offset >= DOUBLE_LIMIT) { + return -61; + } + + FS.llseek(stream, offset, whence); + (tempI64 = [stream.position>>>0,(tempDouble=stream.position,(+(Math.abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math.min((+(Math.floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math.ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((newOffset)>>2)] = tempI64[0],HEAP32[(((newOffset)+(4))>>2)] = tempI64[1]); + if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null; // reset readdir state + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e; + return e.errno; + } + } + + function _fd_write(fd, iov, iovcnt, pnum) { + try { + + ; + var stream = SYSCALLS.getStreamFromFD(fd); + var num = SYSCALLS.doWritev(stream, iov, iovcnt); + HEAP32[((pnum)>>2)] = num; + return 0; + } catch (e) { + if (typeof FS == 'undefined' || !(e instanceof FS.ErrnoError)) throw e; + return e.errno; + } + } + _fd_write.sig = 'iiiii'; + + function _getentropy(buffer, size) { + if (!_getentropy.randomDevice) { + _getentropy.randomDevice = getRandomDevice(); + } + for (var i = 0; i < size; i++) { + HEAP8[(((buffer)+(i))>>0)] = _getentropy.randomDevice(); + } + return 0; + } + + function __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(ctx) { + // Closure is expected to be allowed to minify the '.dibvbi' property, so not accessing it quoted. + return !!(ctx.dibvbi = ctx.getExtension('WEBGL_draw_instanced_base_vertex_base_instance')); + } + + function __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(ctx) { + // Closure is expected to be allowed to minify the '.mdibvbi' property, so not accessing it quoted. + return !!(ctx.mdibvbi = ctx.getExtension('WEBGL_multi_draw_instanced_base_vertex_base_instance')); + } + + function __webgl_enable_WEBGL_multi_draw(ctx) { + // Closure is expected to be allowed to minify the '.multiDrawWebgl' property, so not accessing it quoted. + return !!(ctx.multiDrawWebgl = ctx.getExtension('WEBGL_multi_draw')); + } + var GL = {counter:1,buffers:[],mappedBuffers:{},programs:[],framebuffers:[],renderbuffers:[],textures:[],shaders:[],vaos:[],contexts:[],offscreenCanvases:{},queries:[],samplers:[],transformFeedbacks:[],syncs:[],byteSizeByTypeRoot:5120,byteSizeByType:[1,1,2,2,4,4,4,2,3,4,8],stringCache:{},stringiCache:{},unpackAlignment:4,recordError:function recordError(errorCode) { + if (!GL.lastError) { + GL.lastError = errorCode; + } + },getNewId:function(table) { + var ret = GL.counter++; + for (var i = table.length; i < ret; i++) { + table[i] = null; + } + return ret; + },MAX_TEMP_BUFFER_SIZE:2097152,numTempVertexBuffersPerSize:64,log2ceilLookup:function(i) { + return 32 - Math.clz32(i === 0 ? 0 : i - 1); + },generateTempBuffers:function(quads, context) { + var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE); + context.tempVertexBufferCounters1 = []; + context.tempVertexBufferCounters2 = []; + context.tempVertexBufferCounters1.length = context.tempVertexBufferCounters2.length = largestIndex+1; + context.tempVertexBuffers1 = []; + context.tempVertexBuffers2 = []; + context.tempVertexBuffers1.length = context.tempVertexBuffers2.length = largestIndex+1; + context.tempIndexBuffers = []; + context.tempIndexBuffers.length = largestIndex+1; + for (var i = 0; i <= largestIndex; ++i) { + context.tempIndexBuffers[i] = null; // Created on-demand + context.tempVertexBufferCounters1[i] = context.tempVertexBufferCounters2[i] = 0; + var ringbufferLength = GL.numTempVertexBuffersPerSize; + context.tempVertexBuffers1[i] = []; + context.tempVertexBuffers2[i] = []; + var ringbuffer1 = context.tempVertexBuffers1[i]; + var ringbuffer2 = context.tempVertexBuffers2[i]; + ringbuffer1.length = ringbuffer2.length = ringbufferLength; + for (var j = 0; j < ringbufferLength; ++j) { + ringbuffer1[j] = ringbuffer2[j] = null; // Created on-demand + } + } + + if (quads) { + // GL_QUAD indexes can be precalculated + context.tempQuadIndexBuffer = GLctx.createBuffer(); + context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, context.tempQuadIndexBuffer); + var numIndexes = GL.MAX_TEMP_BUFFER_SIZE >> 1; + var quadIndexes = new Uint16Array(numIndexes); + var i = 0, v = 0; + while (1) { + quadIndexes[i++] = v; + if (i >= numIndexes) break; + quadIndexes[i++] = v+1; + if (i >= numIndexes) break; + quadIndexes[i++] = v+2; + if (i >= numIndexes) break; + quadIndexes[i++] = v; + if (i >= numIndexes) break; + quadIndexes[i++] = v+2; + if (i >= numIndexes) break; + quadIndexes[i++] = v+3; + if (i >= numIndexes) break; + v += 4; + } + context.GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, quadIndexes, 0x88E4 /*GL_STATIC_DRAW*/); + context.GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, null); + } + },getTempVertexBuffer:function getTempVertexBuffer(sizeBytes) { + var idx = GL.log2ceilLookup(sizeBytes); + var ringbuffer = GL.currentContext.tempVertexBuffers1[idx]; + var nextFreeBufferIndex = GL.currentContext.tempVertexBufferCounters1[idx]; + GL.currentContext.tempVertexBufferCounters1[idx] = (GL.currentContext.tempVertexBufferCounters1[idx]+1) & (GL.numTempVertexBuffersPerSize-1); + var vbo = ringbuffer[nextFreeBufferIndex]; + if (vbo) { + return vbo; + } + var prevVBO = GLctx.getParameter(0x8894 /*GL_ARRAY_BUFFER_BINDING*/); + ringbuffer[nextFreeBufferIndex] = GLctx.createBuffer(); + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, ringbuffer[nextFreeBufferIndex]); + GLctx.bufferData(0x8892 /*GL_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/); + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, prevVBO); + return ringbuffer[nextFreeBufferIndex]; + },getTempIndexBuffer:function getTempIndexBuffer(sizeBytes) { + var idx = GL.log2ceilLookup(sizeBytes); + var ibo = GL.currentContext.tempIndexBuffers[idx]; + if (ibo) { + return ibo; + } + var prevIBO = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/); + GL.currentContext.tempIndexBuffers[idx] = GLctx.createBuffer(); + GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, GL.currentContext.tempIndexBuffers[idx]); + GLctx.bufferData(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, 1 << idx, 0x88E8 /*GL_DYNAMIC_DRAW*/); + GLctx.bindBuffer(0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/, prevIBO); + return GL.currentContext.tempIndexBuffers[idx]; + },newRenderingFrameStarted:function newRenderingFrameStarted() { + if (!GL.currentContext) { + return; + } + var vb = GL.currentContext.tempVertexBuffers1; + GL.currentContext.tempVertexBuffers1 = GL.currentContext.tempVertexBuffers2; + GL.currentContext.tempVertexBuffers2 = vb; + vb = GL.currentContext.tempVertexBufferCounters1; + GL.currentContext.tempVertexBufferCounters1 = GL.currentContext.tempVertexBufferCounters2; + GL.currentContext.tempVertexBufferCounters2 = vb; + var largestIndex = GL.log2ceilLookup(GL.MAX_TEMP_BUFFER_SIZE); + for (var i = 0; i <= largestIndex; ++i) { + GL.currentContext.tempVertexBufferCounters1[i] = 0; + } + },getSource:function(shader, count, string, length) { + var source = ''; + for (var i = 0; i < count; ++i) { + var len = length ? HEAP32[(((length)+(i*4))>>2)] : -1; + source += UTF8ToString(HEAP32[(((string)+(i*4))>>2)], len < 0 ? undefined : len); + } + return source; + },calcBufLength:function calcBufLength(size, type, stride, count) { + if (stride > 0) { + return count * stride; // XXXvlad this is not exactly correct I don't think + } + var typeSize = GL.byteSizeByType[type - GL.byteSizeByTypeRoot]; + return size * typeSize * count; + },usedTempBuffers:[],preDrawHandleClientVertexAttribBindings:function preDrawHandleClientVertexAttribBindings(count) { + GL.resetBufferBinding = false; + + // TODO: initial pass to detect ranges we need to upload, might not need an upload per attrib + for (var i = 0; i < GL.currentContext.maxVertexAttribs; ++i) { + var cb = GL.currentContext.clientBuffers[i]; + if (!cb.clientside || !cb.enabled) continue; + + GL.resetBufferBinding = true; + + var size = GL.calcBufLength(cb.size, cb.type, cb.stride, count); + var buf = GL.getTempVertexBuffer(size); + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, buf); + GLctx.bufferSubData(0x8892 /*GL_ARRAY_BUFFER*/, + 0, + HEAPU8.subarray(cb.ptr, cb.ptr + size)); + cb.vertexAttribPointerAdaptor.call(GLctx, i, cb.size, cb.type, cb.normalized, cb.stride, 0); + } + },postDrawHandleClientVertexAttribBindings:function postDrawHandleClientVertexAttribBindings() { + if (GL.resetBufferBinding) { + GLctx.bindBuffer(0x8892 /*GL_ARRAY_BUFFER*/, GL.buffers[GLctx.currentArrayBufferBinding]); + } + },createContext:function(/** @type {HTMLCanvasElement} */ canvas, webGLContextAttributes) { + + // BUG: Workaround Safari WebGL issue: After successfully acquiring WebGL context on a canvas, + // calling .getContext() will always return that context independent of which 'webgl' or 'webgl2' + // context version was passed. See https://bugs.webkit.org/show_bug.cgi?id=222758 and + // https://github.com/emscripten-core/emscripten/issues/13295. + // TODO: Once the bug is fixed and shipped in Safari, adjust the Safari version field in above check. + if (!canvas.getContextSafariWebGL2Fixed) { + canvas.getContextSafariWebGL2Fixed = canvas.getContext; + /** @type {function(this:HTMLCanvasElement, string, (Object|null)=): (Object|null)} */ + function fixedGetContext(ver, attrs) { + var gl = canvas.getContextSafariWebGL2Fixed(ver, attrs); + return ((ver == 'webgl') == (gl instanceof WebGLRenderingContext)) ? gl : null; + } + canvas.getContext = fixedGetContext; + } + + var ctx = canvas.getContext("webgl2", webGLContextAttributes); + + if (!ctx) return 0; + + var handle = GL.registerContext(ctx, webGLContextAttributes); + + return handle; + },registerContext:function(ctx, webGLContextAttributes) { + // without pthreads a context is just an integer ID + var handle = GL.getNewId(GL.contexts); + + var context = { + handle: handle, + attributes: webGLContextAttributes, + version: webGLContextAttributes.majorVersion, + GLctx: ctx + }; + + // Store the created context object so that we can access the context given a canvas without having to pass the parameters again. + if (ctx.canvas) ctx.canvas.GLctxObject = context; + GL.contexts[handle] = context; + if (typeof webGLContextAttributes.enableExtensionsByDefault == 'undefined' || webGLContextAttributes.enableExtensionsByDefault) { + GL.initExtensions(context); + } + + context.maxVertexAttribs = context.GLctx.getParameter(0x8869 /*GL_MAX_VERTEX_ATTRIBS*/); + context.clientBuffers = []; + for (var i = 0; i < context.maxVertexAttribs; i++) { + context.clientBuffers[i] = { enabled: false, clientside: false, size: 0, type: 0, normalized: 0, stride: 0, ptr: 0, vertexAttribPointerAdaptor: null }; + } + + GL.generateTempBuffers(false, context); + + return handle; + },makeContextCurrent:function(contextHandle) { + + GL.currentContext = GL.contexts[contextHandle]; // Active Emscripten GL layer context object. + Module.ctx = GLctx = GL.currentContext && GL.currentContext.GLctx; // Active WebGL context object. + return !(contextHandle && !GLctx); + },getContext:function(contextHandle) { + return GL.contexts[contextHandle]; + },deleteContext:function(contextHandle) { + if (GL.currentContext === GL.contexts[contextHandle]) GL.currentContext = null; + if (typeof JSEvents == 'object') JSEvents.removeAllHandlersOnTarget(GL.contexts[contextHandle].GLctx.canvas); // Release all JS event handlers on the DOM element that the GL context is associated with since the context is now deleted. + if (GL.contexts[contextHandle] && GL.contexts[contextHandle].GLctx.canvas) GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined; // Make sure the canvas object no longer refers to the context object so there are no GC surprises. + GL.contexts[contextHandle] = null; + },initExtensions:function(context) { + // If this function is called without a specific context object, init the extensions of the currently active context. + if (!context) context = GL.currentContext; + + if (context.initExtensionsDone) return; + context.initExtensionsDone = true; + + var GLctx = context.GLctx; + + // Detect the presence of a few extensions manually, this GL interop layer itself will need to know if they exist. + + // Extensions that are available from WebGL >= 2 (no-op if called on a WebGL 1 context active) + __webgl_enable_WEBGL_draw_instanced_base_vertex_base_instance(GLctx); + __webgl_enable_WEBGL_multi_draw_instanced_base_vertex_base_instance(GLctx); + + // On WebGL 2, EXT_disjoint_timer_query is replaced with an alternative + // that's based on core APIs, and exposes only the queryCounterEXT() + // entrypoint. + if (context.version >= 2) { + GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query_webgl2"); + } + + // However, Firefox exposes the WebGL 1 version on WebGL 2 as well and + // thus we look for the WebGL 1 version again if the WebGL 2 version + // isn't present. https://bugzilla.mozilla.org/show_bug.cgi?id=1328882 + if (context.version < 2 || !GLctx.disjointTimerQueryExt) + { + GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query"); + } + + __webgl_enable_WEBGL_multi_draw(GLctx); + + // .getSupportedExtensions() can return null if context is lost, so coerce to empty array. + var exts = GLctx.getSupportedExtensions() || []; + exts.forEach(function(ext) { + // WEBGL_lose_context, WEBGL_debug_renderer_info and WEBGL_debug_shaders are not enabled by default. + if (!ext.includes('lose_context') && !ext.includes('debug')) { + // Call .getExtension() to enable that extension permanently. + GLctx.getExtension(ext); + } + }); + }}; + function _glAttachShader(program, shader) { + GLctx.attachShader(GL.programs[program], GL.shaders[shader]); + } + Module["_glAttachShader"] = _glAttachShader; + _glAttachShader.sig = 'vii'; + + function _glBindBuffer(target, buffer) { + if (target == 0x8892 /*GL_ARRAY_BUFFER*/) { + GLctx.currentArrayBufferBinding = buffer; + } else if (target == 0x8893 /*GL_ELEMENT_ARRAY_BUFFER*/) { + GLctx.currentElementArrayBufferBinding = buffer; + } + + if (target == 0x88EB /*GL_PIXEL_PACK_BUFFER*/) { + // In WebGL 2 glReadPixels entry point, we need to use a different WebGL 2 API function call when a buffer is bound to + // GL_PIXEL_PACK_BUFFER_BINDING point, so must keep track whether that binding point is non-null to know what is + // the proper API function to call. + GLctx.currentPixelPackBufferBinding = buffer; + } else if (target == 0x88EC /*GL_PIXEL_UNPACK_BUFFER*/) { + // In WebGL 2 gl(Compressed)Tex(Sub)Image[23]D entry points, we need to + // use a different WebGL 2 API function call when a buffer is bound to + // GL_PIXEL_UNPACK_BUFFER_BINDING point, so must keep track whether that + // binding point is non-null to know what is the proper API function to + // call. + GLctx.currentPixelUnpackBufferBinding = buffer; + } + GLctx.bindBuffer(target, GL.buffers[buffer]); + } + Module["_glBindBuffer"] = _glBindBuffer; + _glBindBuffer.sig = 'vii'; + + function _glBindVertexArray(vao) { + GLctx['bindVertexArray'](GL.vaos[vao]); + var ibo = GLctx.getParameter(0x8895 /*ELEMENT_ARRAY_BUFFER_BINDING*/); + GLctx.currentElementArrayBufferBinding = ibo ? (ibo.name | 0) : 0; + } + Module["_glBindVertexArray"] = _glBindVertexArray; + _glBindVertexArray.sig = 'vi'; + + function _glBlendFunc(x0, x1) { GLctx['blendFunc'](x0, x1) } + Module["_glBlendFunc"] = _glBlendFunc; + _glBlendFunc.sig = 'vii'; + + function _glBufferData(target, size, data, usage) { + + if (true) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible. + if (data) { + GLctx.bufferData(target, HEAPU8, usage, data, size); + } else { + GLctx.bufferData(target, size, usage); + } + } else { + // N.b. here first form specifies a heap subarray, second form an integer size, so the ?: code here is polymorphic. It is advised to avoid + // randomly mixing both uses in calling code, to avoid any potential JS engine JIT issues. + GLctx.bufferData(target, data ? HEAPU8.subarray(data, data+size) : size, usage); + } + } + Module["_glBufferData"] = _glBufferData; + _glBufferData.sig = 'viiii'; + + function _glBufferSubData(target, offset, size, data) { + if (true) { // WebGL 2 provides new garbage-free entry points to call to WebGL. Use those always when possible. + GLctx.bufferSubData(target, offset, HEAPU8, data, size); + return; + } + GLctx.bufferSubData(target, offset, HEAPU8.subarray(data, data+size)); + } + Module["_glBufferSubData"] = _glBufferSubData; + _glBufferSubData.sig = 'viiii'; + + function _glCompileShader(shader) { + GLctx.compileShader(GL.shaders[shader]); + } + Module["_glCompileShader"] = _glCompileShader; + _glCompileShader.sig = 'vi'; + + function _glCreateProgram() { + var id = GL.getNewId(GL.programs); + var program = GLctx.createProgram(); + // Store additional information needed for each shader program: + program.name = id; + // Lazy cache results of glGetProgramiv(GL_ACTIVE_UNIFORM_MAX_LENGTH/GL_ACTIVE_ATTRIBUTE_MAX_LENGTH/GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH) + program.maxUniformLength = program.maxAttributeLength = program.maxUniformBlockNameLength = 0; + program.uniformIdCounter = 1; + GL.programs[id] = program; + return id; + } + Module["_glCreateProgram"] = _glCreateProgram; + _glCreateProgram.sig = 'i'; + + function _glCreateShader(shaderType) { + var id = GL.getNewId(GL.shaders); + GL.shaders[id] = GLctx.createShader(shaderType); + + return id; + } + Module["_glCreateShader"] = _glCreateShader; + _glCreateShader.sig = 'ii'; + + function _glDeleteBuffers(n, buffers) { + for (var i = 0; i < n; i++) { + var id = HEAP32[(((buffers)+(i*4))>>2)]; + var buffer = GL.buffers[id]; + + // From spec: "glDeleteBuffers silently ignores 0's and names that do not + // correspond to existing buffer objects." + if (!buffer) continue; + + GLctx.deleteBuffer(buffer); + buffer.name = 0; + GL.buffers[id] = null; + + if (id == GLctx.currentArrayBufferBinding) GLctx.currentArrayBufferBinding = 0; + if (id == GLctx.currentElementArrayBufferBinding) GLctx.currentElementArrayBufferBinding = 0; + if (id == GLctx.currentPixelPackBufferBinding) GLctx.currentPixelPackBufferBinding = 0; + if (id == GLctx.currentPixelUnpackBufferBinding) GLctx.currentPixelUnpackBufferBinding = 0; + } + } + Module["_glDeleteBuffers"] = _glDeleteBuffers; + _glDeleteBuffers.sig = 'vii'; + + function _glDeleteProgram(id) { + if (!id) return; + var program = GL.programs[id]; + if (!program) { // glDeleteProgram actually signals an error when deleting a nonexisting object, unlike some other GL delete functions. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + GLctx.deleteProgram(program); + program.name = 0; + GL.programs[id] = null; + } + Module["_glDeleteProgram"] = _glDeleteProgram; + _glDeleteProgram.sig = 'vi'; + + function _glDeleteShader(id) { + if (!id) return; + var shader = GL.shaders[id]; + if (!shader) { // glDeleteShader actually signals an error when deleting a nonexisting object, unlike some other GL delete functions. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + GLctx.deleteShader(shader); + GL.shaders[id] = null; + } + Module["_glDeleteShader"] = _glDeleteShader; + _glDeleteShader.sig = 'vi'; + + function _glDetachShader(program, shader) { + GLctx.detachShader(GL.programs[program], GL.shaders[shader]); + } + Module["_glDetachShader"] = _glDetachShader; + _glDetachShader.sig = 'vii'; + + function _glDrawArraysInstanced(mode, first, count, primcount) { + GLctx['drawArraysInstanced'](mode, first, count, primcount); + } + Module["_glDrawArraysInstanced"] = _glDrawArraysInstanced; + _glDrawArraysInstanced.sig = 'viiii'; + + function _glEnable(x0) { GLctx['enable'](x0) } + Module["_glEnable"] = _glEnable; + _glEnable.sig = 'vi'; + + function _glEnableVertexAttribArray(index) { + var cb = GL.currentContext.clientBuffers[index]; + cb.enabled = true; + GLctx.enableVertexAttribArray(index); + } + Module["_glEnableVertexAttribArray"] = _glEnableVertexAttribArray; + _glEnableVertexAttribArray.sig = 'vi'; + + function __glGenObject(n, buffers, createFunction, objectTable + ) { + for (var i = 0; i < n; i++) { + var buffer = GLctx[createFunction](); + var id = buffer && GL.getNewId(objectTable); + if (buffer) { + buffer.name = id; + objectTable[id] = buffer; + } else { + GL.recordError(0x502 /* GL_INVALID_OPERATION */); + } + HEAP32[(((buffers)+(i*4))>>2)] = id; + } + } + __glGenObject.sig = 'vii'; + function _glGenBuffers(n, buffers) { + __glGenObject(n, buffers, 'createBuffer', GL.buffers + ); + } + Module["_glGenBuffers"] = _glGenBuffers; + _glGenBuffers.sig = 'vii'; + + function _glGenVertexArrays(n, arrays) { + __glGenObject(n, arrays, 'createVertexArray', GL.vaos + ); + } + Module["_glGenVertexArrays"] = _glGenVertexArrays; + _glGenVertexArrays.sig = 'vii'; + + function _glGetAttribLocation(program, name) { + return GLctx.getAttribLocation(GL.programs[program], UTF8ToString(name)); + } + Module["_glGetAttribLocation"] = _glGetAttribLocation; + _glGetAttribLocation.sig = 'iii'; + + function _glGetBufferParameteriv(target, value, data) { + if (!data) { + // GLES2 specification does not specify how to behave if data is a null pointer. Since calling this function does not make sense + // if data == null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + HEAP32[((data)>>2)] = GLctx.getBufferParameter(target, value); + } + Module["_glGetBufferParameteriv"] = _glGetBufferParameteriv; + _glGetBufferParameteriv.sig = 'viii'; + + function _glGetProgramInfoLog(program, maxLength, length, infoLog) { + var log = GLctx.getProgramInfoLog(GL.programs[program]); + if (log === null) log = '(unknown error)'; + var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0; + if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; + } + Module["_glGetProgramInfoLog"] = _glGetProgramInfoLog; + _glGetProgramInfoLog.sig = 'viiii'; + + function _glGetProgramiv(program, pname, p) { + if (!p) { + // GLES2 specification does not specify how to behave if p is a null pointer. Since calling this function does not make sense + // if p == null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + + if (program >= GL.counter) { + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + + program = GL.programs[program]; + + if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH + var log = GLctx.getProgramInfoLog(program); + if (log === null) log = '(unknown error)'; + HEAP32[((p)>>2)] = log.length + 1; + } else if (pname == 0x8B87 /* GL_ACTIVE_UNIFORM_MAX_LENGTH */) { + if (!program.maxUniformLength) { + for (var i = 0; i < GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); ++i) { + program.maxUniformLength = Math.max(program.maxUniformLength, GLctx.getActiveUniform(program, i).name.length+1); + } + } + HEAP32[((p)>>2)] = program.maxUniformLength; + } else if (pname == 0x8B8A /* GL_ACTIVE_ATTRIBUTE_MAX_LENGTH */) { + if (!program.maxAttributeLength) { + for (var i = 0; i < GLctx.getProgramParameter(program, 0x8B89/*GL_ACTIVE_ATTRIBUTES*/); ++i) { + program.maxAttributeLength = Math.max(program.maxAttributeLength, GLctx.getActiveAttrib(program, i).name.length+1); + } + } + HEAP32[((p)>>2)] = program.maxAttributeLength; + } else if (pname == 0x8A35 /* GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH */) { + if (!program.maxUniformBlockNameLength) { + for (var i = 0; i < GLctx.getProgramParameter(program, 0x8A36/*GL_ACTIVE_UNIFORM_BLOCKS*/); ++i) { + program.maxUniformBlockNameLength = Math.max(program.maxUniformBlockNameLength, GLctx.getActiveUniformBlockName(program, i).length+1); + } + } + HEAP32[((p)>>2)] = program.maxUniformBlockNameLength; + } else { + HEAP32[((p)>>2)] = GLctx.getProgramParameter(program, pname); + } + } + Module["_glGetProgramiv"] = _glGetProgramiv; + _glGetProgramiv.sig = 'viii'; + + function _glGetShaderInfoLog(shader, maxLength, length, infoLog) { + var log = GLctx.getShaderInfoLog(GL.shaders[shader]); + if (log === null) log = '(unknown error)'; + var numBytesWrittenExclNull = (maxLength > 0 && infoLog) ? stringToUTF8(log, infoLog, maxLength) : 0; + if (length) HEAP32[((length)>>2)] = numBytesWrittenExclNull; + } + Module["_glGetShaderInfoLog"] = _glGetShaderInfoLog; + _glGetShaderInfoLog.sig = 'viiii'; + + function _glGetShaderiv(shader, pname, p) { + if (!p) { + // GLES2 specification does not specify how to behave if p is a null pointer. Since calling this function does not make sense + // if p == null, issue a GL error to notify user about it. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + return; + } + if (pname == 0x8B84) { // GL_INFO_LOG_LENGTH + var log = GLctx.getShaderInfoLog(GL.shaders[shader]); + if (log === null) log = '(unknown error)'; + // The GLES2 specification says that if the shader has an empty info log, + // a value of 0 is returned. Otherwise the log has a null char appended. + // (An empty string is falsey, so we can just check that instead of + // looking at log.length.) + var logLength = log ? log.length + 1 : 0; + HEAP32[((p)>>2)] = logLength; + } else if (pname == 0x8B88) { // GL_SHADER_SOURCE_LENGTH + var source = GLctx.getShaderSource(GL.shaders[shader]); + // source may be a null, or the empty string, both of which are falsey + // values that we report a 0 length for. + var sourceLength = source ? source.length + 1 : 0; + HEAP32[((p)>>2)] = sourceLength; + } else { + HEAP32[((p)>>2)] = GLctx.getShaderParameter(GL.shaders[shader], pname); + } + } + Module["_glGetShaderiv"] = _glGetShaderiv; + _glGetShaderiv.sig = 'viii'; + + /** @suppress {checkTypes} */ + function jstoi_q(str) { + return parseInt(str); + } + + /** @noinline */ + function webglGetLeftBracePos(name) { + return name.slice(-1) == ']' && name.lastIndexOf('['); + } + function webglPrepareUniformLocationsBeforeFirstUse(program) { + var uniformLocsById = program.uniformLocsById, // Maps GLuint -> WebGLUniformLocation + uniformSizeAndIdsByName = program.uniformSizeAndIdsByName, // Maps name -> [uniform array length, GLuint] + i, j; + + // On the first time invocation of glGetUniformLocation on this shader program: + // initialize cache data structures and discover which uniforms are arrays. + if (!uniformLocsById) { + // maps GLint integer locations to WebGLUniformLocations + program.uniformLocsById = uniformLocsById = {}; + // maps integer locations back to uniform name strings, so that we can lazily fetch uniform array locations + program.uniformArrayNamesById = {}; + + for (i = 0; i < GLctx.getProgramParameter(program, 0x8B86/*GL_ACTIVE_UNIFORMS*/); ++i) { + var u = GLctx.getActiveUniform(program, i); + var nm = u.name; + var sz = u.size; + var lb = webglGetLeftBracePos(nm); + var arrayName = lb > 0 ? nm.slice(0, lb) : nm; + + // Assign a new location. + var id = program.uniformIdCounter; + program.uniformIdCounter += sz; + // Eagerly get the location of the uniformArray[0] base element. + // The remaining indices >0 will be left for lazy evaluation to + // improve performance. Those may never be needed to fetch, if the + // application fills arrays always in full starting from the first + // element of the array. + uniformSizeAndIdsByName[arrayName] = [sz, id]; + + // Store placeholder integers in place that highlight that these + // >0 index locations are array indices pending population. + for(j = 0; j < sz; ++j) { + uniformLocsById[id] = j; + program.uniformArrayNamesById[id++] = arrayName; + } + } + } + } + function _glGetUniformLocation(program, name) { + + name = UTF8ToString(name); + + if (program = GL.programs[program]) { + webglPrepareUniformLocationsBeforeFirstUse(program); + var uniformLocsById = program.uniformLocsById; // Maps GLuint -> WebGLUniformLocation + var arrayIndex = 0; + var uniformBaseName = name; + + // Invariant: when populating integer IDs for uniform locations, we must maintain the precondition that + // arrays reside in contiguous addresses, i.e. for a 'vec4 colors[10];', colors[4] must be at location colors[0]+4. + // However, user might call glGetUniformLocation(program, "colors") for an array, so we cannot discover based on the user + // input arguments whether the uniform we are dealing with is an array. The only way to discover which uniforms are arrays + // is to enumerate over all the active uniforms in the program. + var leftBrace = webglGetLeftBracePos(name); + + // If user passed an array accessor "[index]", parse the array index off the accessor. + if (leftBrace > 0) { + arrayIndex = jstoi_q(name.slice(leftBrace + 1)) >>> 0; // "index]", coerce parseInt(']') with >>>0 to treat "foo[]" as "foo[0]" and foo[-1] as unsigned out-of-bounds. + uniformBaseName = name.slice(0, leftBrace); + } + + // Have we cached the location of this uniform before? + var sizeAndId = program.uniformSizeAndIdsByName[uniformBaseName]; // A pair [array length, GLint of the uniform location] + + // If an uniform with this name exists, and if its index is within the array limits (if it's even an array), + // query the WebGLlocation, or return an existing cached location. + if (sizeAndId && arrayIndex < sizeAndId[0]) { + arrayIndex += sizeAndId[1]; // Add the base location of the uniform to the array index offset. + if ((uniformLocsById[arrayIndex] = uniformLocsById[arrayIndex] || GLctx.getUniformLocation(program, name))) { + return arrayIndex; + } + } + } + else { + // N.b. we are currently unable to distinguish between GL program IDs that never existed vs GL program IDs that have been deleted, + // so report GL_INVALID_VALUE in both cases. + GL.recordError(0x501 /* GL_INVALID_VALUE */); + } + return -1; + } + Module["_glGetUniformLocation"] = _glGetUniformLocation; + _glGetUniformLocation.sig = 'iii'; + + function _glLinkProgram(program) { + program = GL.programs[program]; + GLctx.linkProgram(program); + // Invalidate earlier computed uniform->ID mappings, those have now become stale + program.uniformLocsById = 0; // Mark as null-like so that glGetUniformLocation() knows to populate this again. + program.uniformSizeAndIdsByName = {}; + + } + Module["_glLinkProgram"] = _glLinkProgram; + _glLinkProgram.sig = 'vi'; + + function _glShaderSource(shader, count, string, length) { + var source = GL.getSource(shader, count, string, length); + + GLctx.shaderSource(GL.shaders[shader], source); + } + Module["_glShaderSource"] = _glShaderSource; + _glShaderSource.sig = 'viiii'; + + function webglGetUniformLocation(location) { + var p = GLctx.currentProgram; + + if (p) { + var webglLoc = p.uniformLocsById[location]; + // p.uniformLocsById[location] stores either an integer, or a WebGLUniformLocation. + + // If an integer, we have not yet bound the location, so do it now. The integer value specifies the array index + // we should bind to. + if (typeof webglLoc == 'number') { + p.uniformLocsById[location] = webglLoc = GLctx.getUniformLocation(p, p.uniformArrayNamesById[location] + (webglLoc > 0 ? '[' + webglLoc + ']' : '')); + } + // Else an already cached WebGLUniformLocation, return it. + return webglLoc; + } else { + GL.recordError(0x502/*GL_INVALID_OPERATION*/); + } + } + function _glUniformMatrix4fv(location, count, transpose, value) { + + GLctx.uniformMatrix4fv(webglGetUniformLocation(location), !!transpose, HEAPF32, value>>2, count*16); + } + Module["_glUniformMatrix4fv"] = _glUniformMatrix4fv; + _glUniformMatrix4fv.sig = 'viiii'; + + function _glUseProgram(program) { + program = GL.programs[program]; + GLctx.useProgram(program); + // Record the currently active program so that we can access the uniform + // mapping table of that program. + GLctx.currentProgram = program; + } + Module["_glUseProgram"] = _glUseProgram; + _glUseProgram.sig = 'vi'; + + function _glVertexAttribDivisor(index, divisor) { + GLctx['vertexAttribDivisor'](index, divisor); + } + Module["_glVertexAttribDivisor"] = _glVertexAttribDivisor; + _glVertexAttribDivisor.sig = 'vii'; + + function _glVertexAttribPointer(index, size, type, normalized, stride, ptr) { + var cb = GL.currentContext.clientBuffers[index]; + if (!GLctx.currentArrayBufferBinding) { + cb.size = size; + cb.type = type; + cb.normalized = normalized; + cb.stride = stride; + cb.ptr = ptr; + cb.clientside = true; + cb.vertexAttribPointerAdaptor = function(index, size, type, normalized, stride, ptr) { + this.vertexAttribPointer(index, size, type, normalized, stride, ptr); + }; + return; + } + cb.clientside = false; + GLctx.vertexAttribPointer(index, size, type, !!normalized, stride, ptr); + } + Module["_glVertexAttribPointer"] = _glVertexAttribPointer; + _glVertexAttribPointer.sig = 'viiiiii'; + + function _glViewport(x0, x1, x2, x3) { GLctx['viewport'](x0, x1, x2, x3) } + Module["_glViewport"] = _glViewport; + _glViewport.sig = 'viiii'; + + var _emscripten_get_now;if (ENVIRONMENT_IS_NODE) { + _emscripten_get_now = () => { + var t = process['hrtime'](); + return t[0] * 1e3 + t[1] / 1e6; + }; + } else _emscripten_get_now = () => performance.now(); + ; + + function _emscripten_set_main_loop_timing(mode, value) { + Browser.mainLoop.timingMode = mode; + Browser.mainLoop.timingValue = value; + + if (!Browser.mainLoop.func) { + err('emscripten_set_main_loop_timing: Cannot set timing mode for main loop since a main loop does not exist! Call emscripten_set_main_loop first to set one up.'); + return 1; // Return non-zero on failure, can't set timing mode when there is no main loop. + } + + if (!Browser.mainLoop.running) { + + Browser.mainLoop.running = true; + } + if (mode == 0 /*EM_TIMING_SETTIMEOUT*/) { + Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_setTimeout() { + var timeUntilNextTick = Math.max(0, Browser.mainLoop.tickStartTime + value - _emscripten_get_now())|0; + setTimeout(Browser.mainLoop.runner, timeUntilNextTick); // doing this each time means that on exception, we stop + }; + Browser.mainLoop.method = 'timeout'; + } else if (mode == 1 /*EM_TIMING_RAF*/) { + Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_rAF() { + Browser.requestAnimationFrame(Browser.mainLoop.runner); + }; + Browser.mainLoop.method = 'rAF'; + } else if (mode == 2 /*EM_TIMING_SETIMMEDIATE*/) { + if (typeof setImmediate == 'undefined') { + // Emulate setImmediate. (note: not a complete polyfill, we don't emulate clearImmediate() to keep code size to minimum, since not needed) + var setImmediates = []; + var emscriptenMainLoopMessageId = 'setimmediate'; + var Browser_setImmediate_messageHandler = function(/** @type {Event} */ event) { + // When called in current thread or Worker, the main loop ID is structured slightly different to accommodate for --proxy-to-worker runtime listening to Worker events, + // so check for both cases. + if (event.data === emscriptenMainLoopMessageId || event.data.target === emscriptenMainLoopMessageId) { + event.stopPropagation(); + setImmediates.shift()(); + } + } + addEventListener("message", Browser_setImmediate_messageHandler, true); + setImmediate = /** @type{function(function(): ?, ...?): number} */(function Browser_emulated_setImmediate(func) { + setImmediates.push(func); + if (ENVIRONMENT_IS_WORKER) { + if (Module['setImmediates'] === undefined) Module['setImmediates'] = []; + Module['setImmediates'].push(func); + postMessage({target: emscriptenMainLoopMessageId}); // In --proxy-to-worker, route the message via proxyClient.js + } else postMessage(emscriptenMainLoopMessageId, "*"); // On the main thread, can just send the message to itself. + }) + } + Browser.mainLoop.scheduler = function Browser_mainLoop_scheduler_setImmediate() { + setImmediate(Browser.mainLoop.runner); + }; + Browser.mainLoop.method = 'immediate'; + } + return 0; + } + _emscripten_set_main_loop_timing.sig = 'iii'; + + function runtimeKeepalivePush() { + } + runtimeKeepalivePush.sig = 'v'; + + function _exit(status) { + // void _exit(int status); + // http://pubs.opengroup.org/onlinepubs/000095399/functions/exit.html + exit(status); + } + _exit.sig = 'vi'; + function maybeExit() { + } + + /** + * @param {number=} arg + * @param {boolean=} noSetTiming + */ + function setMainLoop(browserIterationFunc, fps, simulateInfiniteLoop, arg, noSetTiming) { + assert(!Browser.mainLoop.func, 'emscripten_set_main_loop: there can only be one main loop function at once: call emscripten_cancel_main_loop to cancel the previous one before setting a new one with different parameters.'); + + Browser.mainLoop.func = browserIterationFunc; + Browser.mainLoop.arg = arg; + + var thisMainLoopId = Browser.mainLoop.currentlyRunningMainloop; + function checkIsRunning() { + if (thisMainLoopId < Browser.mainLoop.currentlyRunningMainloop) { + + maybeExit(); + return false; + } + return true; + } + + // We create the loop runner here but it is not actually running until + // _emscripten_set_main_loop_timing is called (which might happen a + // later time). This member signifies that the current runner has not + // yet been started so that we can call runtimeKeepalivePush when it + // gets it timing set for the first time. + Browser.mainLoop.running = false; + Browser.mainLoop.runner = function Browser_mainLoop_runner() { + if (ABORT) return; + if (Browser.mainLoop.queue.length > 0) { + var start = Date.now(); + var blocker = Browser.mainLoop.queue.shift(); + blocker.func(blocker.arg); + if (Browser.mainLoop.remainingBlockers) { + var remaining = Browser.mainLoop.remainingBlockers; + var next = remaining%1 == 0 ? remaining-1 : Math.floor(remaining); + if (blocker.counted) { + Browser.mainLoop.remainingBlockers = next; + } else { + // not counted, but move the progress along a tiny bit + next = next + 0.5; // do not steal all the next one's progress + Browser.mainLoop.remainingBlockers = (8*remaining + next)/9; + } + } + out('main loop blocker "' + blocker.name + '" took ' + (Date.now() - start) + ' ms'); //, left: ' + Browser.mainLoop.remainingBlockers); + Browser.mainLoop.updateStatus(); + + // catches pause/resume main loop from blocker execution + if (!checkIsRunning()) return; + + setTimeout(Browser.mainLoop.runner, 0); + return; + } + + // catch pauses from non-main loop sources + if (!checkIsRunning()) return; + + // Implement very basic swap interval control + Browser.mainLoop.currentFrameNumber = Browser.mainLoop.currentFrameNumber + 1 | 0; + if (Browser.mainLoop.timingMode == 1/*EM_TIMING_RAF*/ && Browser.mainLoop.timingValue > 1 && Browser.mainLoop.currentFrameNumber % Browser.mainLoop.timingValue != 0) { + // Not the scheduled time to render this frame - skip. + Browser.mainLoop.scheduler(); + return; + } else if (Browser.mainLoop.timingMode == 0/*EM_TIMING_SETTIMEOUT*/) { + Browser.mainLoop.tickStartTime = _emscripten_get_now(); + } + + // Signal GL rendering layer that processing of a new frame is about to start. This helps it optimize + // VBO double-buffering and reduce GPU stalls. + GL.newRenderingFrameStarted(); + + if (Browser.mainLoop.method === 'timeout' && Module.ctx) { + warnOnce('Looks like you are rendering without using requestAnimationFrame for the main loop. You should use 0 for the frame rate in emscripten_set_main_loop in order to use requestAnimationFrame, as that can greatly improve your frame rates!'); + Browser.mainLoop.method = ''; // just warn once per call to set main loop + } + + Browser.mainLoop.runIter(browserIterationFunc); + + checkStackCookie(); + + // catch pauses from the main loop itself + if (!checkIsRunning()) return; + + // Queue new audio data. This is important to be right after the main loop invocation, so that we will immediately be able + // to queue the newest produced audio samples. + // TODO: Consider adding pre- and post- rAF callbacks so that GL.newRenderingFrameStarted() and SDL.audio.queueNewAudioData() + // do not need to be hardcoded into this function, but can be more generic. + if (typeof SDL == 'object' && SDL.audio && SDL.audio.queueNewAudioData) SDL.audio.queueNewAudioData(); + + Browser.mainLoop.scheduler(); + } + + if (!noSetTiming) { + if (fps && fps > 0) _emscripten_set_main_loop_timing(0/*EM_TIMING_SETTIMEOUT*/, 1000.0 / fps); + else _emscripten_set_main_loop_timing(1/*EM_TIMING_RAF*/, 1); // Do rAF by rendering each frame (no decimating) + + Browser.mainLoop.scheduler(); + } + + if (simulateInfiniteLoop) { + throw 'unwind'; + } + } + + /** @param {boolean=} synchronous */ + function callUserCallback(func, synchronous) { + if (ABORT) { + err('user callback triggered after runtime exited or application aborted. Ignoring.'); + return; + } + // For synchronous calls, let any exceptions propagate, and don't let the runtime exit. + if (synchronous) { + func(); + return; + } + try { + func(); + } catch (e) { + handleException(e); + } + } + + function runtimeKeepalivePop() { + } + runtimeKeepalivePop.sig = 'v'; + /** @param {number=} timeout */ + function safeSetTimeout(func, timeout) { + + return setTimeout(function() { + + callUserCallback(func); + }, timeout); + } + var Browser = {mainLoop:{running:false,scheduler:null,method:"",currentlyRunningMainloop:0,func:null,arg:0,timingMode:0,timingValue:0,currentFrameNumber:0,queue:[],pause:function() { + Browser.mainLoop.scheduler = null; + // Incrementing this signals the previous main loop that it's now become old, and it must return. + Browser.mainLoop.currentlyRunningMainloop++; + },resume:function() { + Browser.mainLoop.currentlyRunningMainloop++; + var timingMode = Browser.mainLoop.timingMode; + var timingValue = Browser.mainLoop.timingValue; + var func = Browser.mainLoop.func; + Browser.mainLoop.func = null; + // do not set timing and call scheduler, we will do it on the next lines + setMainLoop(func, 0, false, Browser.mainLoop.arg, true); + _emscripten_set_main_loop_timing(timingMode, timingValue); + Browser.mainLoop.scheduler(); + },updateStatus:function() { + if (Module['setStatus']) { + var message = Module['statusMessage'] || 'Please wait...'; + var remaining = Browser.mainLoop.remainingBlockers; + var expected = Browser.mainLoop.expectedBlockers; + if (remaining) { + if (remaining < expected) { + Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')'); + } else { + Module['setStatus'](message); + } + } else { + Module['setStatus'](''); + } + } + },runIter:function(func) { + if (ABORT) return; + if (Module['preMainLoop']) { + var preRet = Module['preMainLoop'](); + if (preRet === false) { + return; // |return false| skips a frame + } + } + callUserCallback(func); + if (Module['postMainLoop']) Module['postMainLoop'](); + }},isFullscreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function() { + if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers + + if (Browser.initted) return; + Browser.initted = true; + + try { + new Blob(); + Browser.hasBlobConstructor = true; + } catch(e) { + Browser.hasBlobConstructor = false; + out("warning: no blob constructor, cannot create blobs with mimetypes"); + } + Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? out("warning: no BlobBuilder") : null)); + Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined; + if (!Module.noImageDecoding && typeof Browser.URLObject == 'undefined') { + out("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available."); + Module.noImageDecoding = true; + } + + // Support for plugins that can process preloaded files. You can add more of these to + // your app by creating and appending to Module.preloadPlugins. + // + // Each plugin is asked if it can handle a file based on the file's name. If it can, + // it is given the file's raw data. When it is done, it calls a callback with the file's + // (possibly modified) data. For example, a plugin might decompress a file, or it + // might create some side data structure for use later (like an Image element, etc.). + + var imagePlugin = {}; + imagePlugin['canHandle'] = function imagePlugin_canHandle(name) { + return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name); + }; + imagePlugin['handle'] = function imagePlugin_handle(byteArray, name, onload, onerror) { + var b = null; + if (Browser.hasBlobConstructor) { + try { + b = new Blob([byteArray], { type: Browser.getMimetype(name) }); + if (b.size !== byteArray.length) { // Safari bug #118630 + // Safari's Blob can only take an ArrayBuffer + b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Browser.getMimetype(name) }); + } + } catch(e) { + warnOnce('Blob constructor present but fails: ' + e + '; falling back to blob builder'); + } + } + if (!b) { + var bb = new Browser.BlobBuilder(); + bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a buffer, and must copy the array to get the right data range + b = bb.getBlob(); + } + var url = Browser.URLObject.createObjectURL(b); + assert(typeof url == 'string', 'createObjectURL must return a url as a string'); + var img = new Image(); + img.onload = () => { + assert(img.complete, 'Image ' + name + ' could not be decoded'); + var canvas = /** @type {!HTMLCanvasElement} */ (document.createElement('canvas')); + canvas.width = img.width; + canvas.height = img.height; + var ctx = canvas.getContext('2d'); + ctx.drawImage(img, 0, 0); + Module["preloadedImages"][name] = canvas; + Browser.URLObject.revokeObjectURL(url); + if (onload) onload(byteArray); + }; + img.onerror = (event) => { + out('Image ' + url + ' could not be decoded'); + if (onerror) onerror(); + }; + img.src = url; + }; + Module['preloadPlugins'].push(imagePlugin); + + var audioPlugin = {}; + audioPlugin['canHandle'] = function audioPlugin_canHandle(name) { + return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 }; + }; + audioPlugin['handle'] = function audioPlugin_handle(byteArray, name, onload, onerror) { + var done = false; + function finish(audio) { + if (done) return; + done = true; + Module["preloadedAudios"][name] = audio; + if (onload) onload(byteArray); + } + function fail() { + if (done) return; + done = true; + Module["preloadedAudios"][name] = new Audio(); // empty shim + if (onerror) onerror(); + } + if (Browser.hasBlobConstructor) { + try { + var b = new Blob([byteArray], { type: Browser.getMimetype(name) }); + } catch(e) { + return fail(); + } + var url = Browser.URLObject.createObjectURL(b); // XXX we never revoke this! + assert(typeof url == 'string', 'createObjectURL must return a url as a string'); + var audio = new Audio(); + audio.addEventListener('canplaythrough', function() { finish(audio) }, false); // use addEventListener due to chromium bug 124926 + audio.onerror = function audio_onerror(event) { + if (done) return; + out('warning: browser could not fully decode audio ' + name + ', trying slower base64 approach'); + function encode64(data) { + var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'; + var PAD = '='; + var ret = ''; + var leftchar = 0; + var leftbits = 0; + for (var i = 0; i < data.length; i++) { + leftchar = (leftchar << 8) | data[i]; + leftbits += 8; + while (leftbits >= 6) { + var curr = (leftchar >> (leftbits-6)) & 0x3f; + leftbits -= 6; + ret += BASE[curr]; + } + } + if (leftbits == 2) { + ret += BASE[(leftchar&3) << 4]; + ret += PAD + PAD; + } else if (leftbits == 4) { + ret += BASE[(leftchar&0xf) << 2]; + ret += PAD; + } + return ret; + } + audio.src = 'data:audio/x-' + name.substr(-3) + ';base64,' + encode64(byteArray); + finish(audio); // we don't wait for confirmation this worked - but it's worth trying + }; + audio.src = url; + // workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror + safeSetTimeout(function() { + finish(audio); // try to use it even though it is not necessarily ready to play + }, 10000); + } else { + return fail(); + } + }; + Module['preloadPlugins'].push(audioPlugin); + + // Use string keys here to avoid minification since the plugin consumer + // also uses string keys. + var wasmPlugin = { + 'asyncWasmLoadPromise': new Promise(function(resolve, reject) { return resolve(); }), + 'canHandle': function(name) { + return !Module.noWasmDecoding && name.endsWith('.so') + }, + 'handle': function(byteArray, name, onload, onerror) { + // loadWebAssemblyModule can not load modules out-of-order, so rather + // than just running the promises in parallel, this makes a chain of + // promises to run in series. + wasmPlugin['asyncWasmLoadPromise'] = wasmPlugin['asyncWasmLoadPromise'].then( + function() { + return loadWebAssemblyModule(byteArray, {loadAsync: true, nodelete: true}); + }).then( + function(module) { + Module['preloadedWasm'][name] = module; + onload(); + }, + function(err) { + console.warn("Couldn't instantiate wasm: " + name + " '" + err + "'"); + onerror(); + }); + } + }; + Module['preloadPlugins'].push(wasmPlugin); + + // Canvas event setup + + function pointerLockChange() { + Browser.pointerLock = document['pointerLockElement'] === Module['canvas'] || + document['mozPointerLockElement'] === Module['canvas'] || + document['webkitPointerLockElement'] === Module['canvas'] || + document['msPointerLockElement'] === Module['canvas']; + } + var canvas = Module['canvas']; + if (canvas) { + // forced aspect ratio can be enabled by defining 'forcedAspectRatio' on Module + // Module['forcedAspectRatio'] = 4 / 3; + + canvas.requestPointerLock = canvas['requestPointerLock'] || + canvas['mozRequestPointerLock'] || + canvas['webkitRequestPointerLock'] || + canvas['msRequestPointerLock'] || + function(){}; + canvas.exitPointerLock = document['exitPointerLock'] || + document['mozExitPointerLock'] || + document['webkitExitPointerLock'] || + document['msExitPointerLock'] || + function(){}; // no-op if function does not exist + canvas.exitPointerLock = canvas.exitPointerLock.bind(document); + + document.addEventListener('pointerlockchange', pointerLockChange, false); + document.addEventListener('mozpointerlockchange', pointerLockChange, false); + document.addEventListener('webkitpointerlockchange', pointerLockChange, false); + document.addEventListener('mspointerlockchange', pointerLockChange, false); + + if (Module['elementPointerLock']) { + canvas.addEventListener("click", function(ev) { + if (!Browser.pointerLock && Module['canvas'].requestPointerLock) { + Module['canvas'].requestPointerLock(); + ev.preventDefault(); + } + }, false); + } + } + },handledByPreloadPlugin:function(byteArray, fullname, finish, onerror) { + // Ensure plugins are ready. + Browser.init(); + + var handled = false; + Module['preloadPlugins'].forEach(function(plugin) { + if (handled) return; + if (plugin['canHandle'](fullname)) { + plugin['handle'](byteArray, fullname, finish, onerror); + handled = true; + } + }); + return handled; + },createContext:function(/** @type {HTMLCanvasElement} */ canvas, useWebGL, setInModule, webGLContextAttributes) { + if (useWebGL && Module.ctx && canvas == Module.canvas) return Module.ctx; // no need to recreate GL context if it's already been created for this canvas. + + var ctx; + var contextHandle; + if (useWebGL) { + // For GLES2/desktop GL compatibility, adjust a few defaults to be different to WebGL defaults, so that they align better with the desktop defaults. + var contextAttributes = { + antialias: false, + alpha: false, + majorVersion: 2, + }; + + if (webGLContextAttributes) { + for (var attribute in webGLContextAttributes) { + contextAttributes[attribute] = webGLContextAttributes[attribute]; + } + } + + // This check of existence of GL is here to satisfy Closure compiler, which yells if variable GL is referenced below but GL object is not + // actually compiled in because application is not doing any GL operations. TODO: Ideally if GL is not being used, this function + // Browser.createContext() should not even be emitted. + if (typeof GL != 'undefined') { + contextHandle = GL.createContext(canvas, contextAttributes); + if (contextHandle) { + ctx = GL.getContext(contextHandle).GLctx; + } + } + } else { + ctx = canvas.getContext('2d'); + } + + if (!ctx) return null; + + if (setInModule) { + if (!useWebGL) assert(typeof GLctx == 'undefined', 'cannot set in module if GLctx is used, but we are a non-GL context that would replace it'); + + Module.ctx = ctx; + if (useWebGL) GL.makeContextCurrent(contextHandle); + Module.useWebGL = useWebGL; + Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() }); + Browser.init(); + } + return ctx; + },destroyContext:function(canvas, useWebGL, setInModule) {},fullscreenHandlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullscreen:function(lockPointer, resizeCanvas) { + Browser.lockPointer = lockPointer; + Browser.resizeCanvas = resizeCanvas; + if (typeof Browser.lockPointer == 'undefined') Browser.lockPointer = true; + if (typeof Browser.resizeCanvas == 'undefined') Browser.resizeCanvas = false; + + var canvas = Module['canvas']; + function fullscreenChange() { + Browser.isFullscreen = false; + var canvasContainer = canvas.parentNode; + if ((document['fullscreenElement'] || document['mozFullScreenElement'] || + document['msFullscreenElement'] || document['webkitFullscreenElement'] || + document['webkitCurrentFullScreenElement']) === canvasContainer) { + canvas.exitFullscreen = Browser.exitFullscreen; + if (Browser.lockPointer) canvas.requestPointerLock(); + Browser.isFullscreen = true; + if (Browser.resizeCanvas) { + Browser.setFullscreenCanvasSize(); + } else { + Browser.updateCanvasDimensions(canvas); + } + } else { + // remove the full screen specific parent of the canvas again to restore the HTML structure from before going full screen + canvasContainer.parentNode.insertBefore(canvas, canvasContainer); + canvasContainer.parentNode.removeChild(canvasContainer); + + if (Browser.resizeCanvas) { + Browser.setWindowedCanvasSize(); + } else { + Browser.updateCanvasDimensions(canvas); + } + } + if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullscreen); + if (Module['onFullscreen']) Module['onFullscreen'](Browser.isFullscreen); + } + + if (!Browser.fullscreenHandlersInstalled) { + Browser.fullscreenHandlersInstalled = true; + document.addEventListener('fullscreenchange', fullscreenChange, false); + document.addEventListener('mozfullscreenchange', fullscreenChange, false); + document.addEventListener('webkitfullscreenchange', fullscreenChange, false); + document.addEventListener('MSFullscreenChange', fullscreenChange, false); + } + + // create a new parent to ensure the canvas has no siblings. this allows browsers to optimize full screen performance when its parent is the full screen root + var canvasContainer = document.createElement("div"); + canvas.parentNode.insertBefore(canvasContainer, canvas); + canvasContainer.appendChild(canvas); + + // use parent of canvas as full screen root to allow aspect ratio correction (Firefox stretches the root to screen size) + canvasContainer.requestFullscreen = canvasContainer['requestFullscreen'] || + canvasContainer['mozRequestFullScreen'] || + canvasContainer['msRequestFullscreen'] || + (canvasContainer['webkitRequestFullscreen'] ? function() { canvasContainer['webkitRequestFullscreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null) || + (canvasContainer['webkitRequestFullScreen'] ? function() { canvasContainer['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null); + + canvasContainer.requestFullscreen(); + },requestFullScreen:function() { + abort('Module.requestFullScreen has been replaced by Module.requestFullscreen (without a capital S)'); + },exitFullscreen:function() { + // This is workaround for chrome. Trying to exit from fullscreen + // not in fullscreen state will cause "TypeError: Document not active" + // in chrome. See https://github.com/emscripten-core/emscripten/pull/8236 + if (!Browser.isFullscreen) { + return false; + } + + var CFS = document['exitFullscreen'] || + document['cancelFullScreen'] || + document['mozCancelFullScreen'] || + document['msExitFullscreen'] || + document['webkitCancelFullScreen'] || + (function() {}); + CFS.apply(document, []); + return true; + },nextRAF:0,fakeRequestAnimationFrame:function(func) { + // try to keep 60fps between calls to here + var now = Date.now(); + if (Browser.nextRAF === 0) { + Browser.nextRAF = now + 1000/60; + } else { + while (now + 2 >= Browser.nextRAF) { // fudge a little, to avoid timer jitter causing us to do lots of delay:0 + Browser.nextRAF += 1000/60; + } + } + var delay = Math.max(Browser.nextRAF - now, 0); + setTimeout(func, delay); + },requestAnimationFrame:function(func) { + if (typeof requestAnimationFrame == 'function') { + requestAnimationFrame(func); + return; + } + var RAF = Browser.fakeRequestAnimationFrame; + RAF(func); + },safeSetTimeout:function(func) { + // Legacy function, this is used by the SDL2 port so we need to keep it + // around at least until that is updated. + return safeSetTimeout(func); + },safeRequestAnimationFrame:function(func) { + + return Browser.requestAnimationFrame(function() { + + callUserCallback(func); + }); + },getMimetype:function(name) { + return { + 'jpg': 'image/jpeg', + 'jpeg': 'image/jpeg', + 'png': 'image/png', + 'bmp': 'image/bmp', + 'ogg': 'audio/ogg', + 'wav': 'audio/wav', + 'mp3': 'audio/mpeg' + }[name.substr(name.lastIndexOf('.')+1)]; + },getUserMedia:function(func) { + if (!window.getUserMedia) { + window.getUserMedia = navigator['getUserMedia'] || + navigator['mozGetUserMedia']; + } + window.getUserMedia(func); + },getMovementX:function(event) { + return event['movementX'] || + event['mozMovementX'] || + event['webkitMovementX'] || + 0; + },getMovementY:function(event) { + return event['movementY'] || + event['mozMovementY'] || + event['webkitMovementY'] || + 0; + },getMouseWheelDelta:function(event) { + var delta = 0; + switch (event.type) { + case 'DOMMouseScroll': + // 3 lines make up a step + delta = event.detail / 3; + break; + case 'mousewheel': + // 120 units make up a step + delta = event.wheelDelta / 120; + break; + case 'wheel': + delta = event.deltaY + switch (event.deltaMode) { + case 0: + // DOM_DELTA_PIXEL: 100 pixels make up a step + delta /= 100; + break; + case 1: + // DOM_DELTA_LINE: 3 lines make up a step + delta /= 3; + break; + case 2: + // DOM_DELTA_PAGE: A page makes up 80 steps + delta *= 80; + break; + default: + throw 'unrecognized mouse wheel delta mode: ' + event.deltaMode; + } + break; + default: + throw 'unrecognized mouse wheel event: ' + event.type; + } + return delta; + },mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,touches:{},lastTouches:{},calculateMouseEvent:function(event) { // event should be mousemove, mousedown or mouseup + if (Browser.pointerLock) { + // When the pointer is locked, calculate the coordinates + // based on the movement of the mouse. + // Workaround for Firefox bug 764498 + if (event.type != 'mousemove' && + ('mozMovementX' in event)) { + Browser.mouseMovementX = Browser.mouseMovementY = 0; + } else { + Browser.mouseMovementX = Browser.getMovementX(event); + Browser.mouseMovementY = Browser.getMovementY(event); + } + + // check if SDL is available + if (typeof SDL != "undefined") { + Browser.mouseX = SDL.mouseX + Browser.mouseMovementX; + Browser.mouseY = SDL.mouseY + Browser.mouseMovementY; + } else { + // just add the mouse delta to the current absolut mouse position + // FIXME: ideally this should be clamped against the canvas size and zero + Browser.mouseX += Browser.mouseMovementX; + Browser.mouseY += Browser.mouseMovementY; + } + } else { + // Otherwise, calculate the movement based on the changes + // in the coordinates. + var rect = Module["canvas"].getBoundingClientRect(); + var cw = Module["canvas"].width; + var ch = Module["canvas"].height; + + // Neither .scrollX or .pageXOffset are defined in a spec, but + // we prefer .scrollX because it is currently in a spec draft. + // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/) + var scrollX = ((typeof window.scrollX != 'undefined') ? window.scrollX : window.pageXOffset); + var scrollY = ((typeof window.scrollY != 'undefined') ? window.scrollY : window.pageYOffset); + // If this assert lands, it's likely because the browser doesn't support scrollX or pageXOffset + // and we have no viable fallback. + assert((typeof scrollX != 'undefined') && (typeof scrollY != 'undefined'), 'Unable to retrieve scroll position, mouse positions likely broken.'); + + if (event.type === 'touchstart' || event.type === 'touchend' || event.type === 'touchmove') { + var touch = event.touch; + if (touch === undefined) { + return; // the "touch" property is only defined in SDL + + } + var adjustedX = touch.pageX - (scrollX + rect.left); + var adjustedY = touch.pageY - (scrollY + rect.top); + + adjustedX = adjustedX * (cw / rect.width); + adjustedY = adjustedY * (ch / rect.height); + + var coords = { x: adjustedX, y: adjustedY }; + + if (event.type === 'touchstart') { + Browser.lastTouches[touch.identifier] = coords; + Browser.touches[touch.identifier] = coords; + } else if (event.type === 'touchend' || event.type === 'touchmove') { + var last = Browser.touches[touch.identifier]; + if (!last) last = coords; + Browser.lastTouches[touch.identifier] = last; + Browser.touches[touch.identifier] = coords; + } + return; + } + + var x = event.pageX - (scrollX + rect.left); + var y = event.pageY - (scrollY + rect.top); + + // the canvas might be CSS-scaled compared to its backbuffer; + // SDL-using content will want mouse coordinates in terms + // of backbuffer units. + x = x * (cw / rect.width); + y = y * (ch / rect.height); + + Browser.mouseMovementX = x - Browser.mouseX; + Browser.mouseMovementY = y - Browser.mouseY; + Browser.mouseX = x; + Browser.mouseY = y; + } + },resizeListeners:[],updateResizeListeners:function() { + var canvas = Module['canvas']; + Browser.resizeListeners.forEach(function(listener) { + listener(canvas.width, canvas.height); + }); + },setCanvasSize:function(width, height, noUpdates) { + var canvas = Module['canvas']; + Browser.updateCanvasDimensions(canvas, width, height); + if (!noUpdates) Browser.updateResizeListeners(); + },windowedWidth:0,windowedHeight:0,setFullscreenCanvasSize:function() { + // check if SDL is available + if (typeof SDL != "undefined") { + var flags = HEAPU32[((SDL.screen)>>2)]; + flags = flags | 0x00800000; // set SDL_FULLSCREEN flag + HEAP32[((SDL.screen)>>2)] = flags; + } + Browser.updateCanvasDimensions(Module['canvas']); + Browser.updateResizeListeners(); + },setWindowedCanvasSize:function() { + // check if SDL is available + if (typeof SDL != "undefined") { + var flags = HEAPU32[((SDL.screen)>>2)]; + flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag + HEAP32[((SDL.screen)>>2)] = flags; + } + Browser.updateCanvasDimensions(Module['canvas']); + Browser.updateResizeListeners(); + },updateCanvasDimensions:function(canvas, wNative, hNative) { + if (wNative && hNative) { + canvas.widthNative = wNative; + canvas.heightNative = hNative; + } else { + wNative = canvas.widthNative; + hNative = canvas.heightNative; + } + var w = wNative; + var h = hNative; + if (Module['forcedAspectRatio'] && Module['forcedAspectRatio'] > 0) { + if (w/h < Module['forcedAspectRatio']) { + w = Math.round(h * Module['forcedAspectRatio']); + } else { + h = Math.round(w / Module['forcedAspectRatio']); + } + } + if (((document['fullscreenElement'] || document['mozFullScreenElement'] || + document['msFullscreenElement'] || document['webkitFullscreenElement'] || + document['webkitCurrentFullScreenElement']) === canvas.parentNode) && (typeof screen != 'undefined')) { + var factor = Math.min(screen.width / w, screen.height / h); + w = Math.round(w * factor); + h = Math.round(h * factor); + } + if (Browser.resizeCanvas) { + if (canvas.width != w) canvas.width = w; + if (canvas.height != h) canvas.height = h; + if (typeof canvas.style != 'undefined') { + canvas.style.removeProperty( "width"); + canvas.style.removeProperty("height"); + } + } else { + if (canvas.width != wNative) canvas.width = wNative; + if (canvas.height != hNative) canvas.height = hNative; + if (typeof canvas.style != 'undefined') { + if (w != wNative || h != hNative) { + canvas.style.setProperty( "width", w + "px", "important"); + canvas.style.setProperty("height", h + "px", "important"); + } else { + canvas.style.removeProperty( "width"); + canvas.style.removeProperty("height"); + } + } + } + }}; + + /** @constructor */ + function GLFW_Window(id, width, height, title, monitor, share) { + this.id = id; + this.x = 0; + this.y = 0; + this.fullscreen = false; // Used to determine if app in fullscreen mode + this.storedX = 0; // Used to store X before fullscreen + this.storedY = 0; // Used to store Y before fullscreen + this.width = width; + this.height = height; + this.storedWidth = width; // Used to store width before fullscreen + this.storedHeight = height; // Used to store height before fullscreen + this.title = title; + this.monitor = monitor; + this.share = share; + this.attributes = GLFW.hints; + this.inputModes = { + 0x00033001:0x00034001, // GLFW_CURSOR (GLFW_CURSOR_NORMAL) + 0x00033002:0, // GLFW_STICKY_KEYS + 0x00033003:0, // GLFW_STICKY_MOUSE_BUTTONS + }; + this.buttons = 0; + this.keys = new Array(); + this.domKeys = new Array(); + this.shouldClose = 0; + this.title = null; + this.windowPosFunc = null; // GLFWwindowposfun + this.windowSizeFunc = null; // GLFWwindowsizefun + this.windowCloseFunc = null; // GLFWwindowclosefun + this.windowRefreshFunc = null; // GLFWwindowrefreshfun + this.windowFocusFunc = null; // GLFWwindowfocusfun + this.windowIconifyFunc = null; // GLFWwindowiconifyfun + this.framebufferSizeFunc = null; // GLFWframebuffersizefun + this.mouseButtonFunc = null; // GLFWmousebuttonfun + this.cursorPosFunc = null; // GLFWcursorposfun + this.cursorEnterFunc = null; // GLFWcursorenterfun + this.scrollFunc = null; // GLFWscrollfun + this.dropFunc = null; // GLFWdropfun + this.keyFunc = null; // GLFWkeyfun + this.charFunc = null; // GLFWcharfun + this.userptr = null; + } + var GLFW = {WindowFromId:function(id) { + if (id <= 0 || !GLFW.windows) return null; + return GLFW.windows[id - 1]; + },joystickFunc:null,errorFunc:null,monitorFunc:null,active:null,windows:null,monitors:null,monitorString:null,versionString:null,initialTime:null,extensions:null,hints:null,defaultHints:{131073:0,131074:0,131075:1,131076:1,131077:1,135169:8,135170:8,135171:8,135172:8,135173:24,135174:8,135175:0,135176:0,135177:0,135178:0,135179:0,135180:0,135181:0,135182:0,135183:0,139265:196609,139266:1,139267:0,139268:0,139269:0,139270:0,139271:0,139272:0},DOMToGLFWKeyCode:function(keycode) { + switch (keycode) { + // these keycodes are only defined for GLFW3, assume they are the same for GLFW2 + case 0x20:return 32; // DOM_VK_SPACE -> GLFW_KEY_SPACE + case 0xDE:return 39; // DOM_VK_QUOTE -> GLFW_KEY_APOSTROPHE + case 0xBC:return 44; // DOM_VK_COMMA -> GLFW_KEY_COMMA + case 0xAD:return 45; // DOM_VK_HYPHEN_MINUS -> GLFW_KEY_MINUS + case 0xBD:return 45; // DOM_VK_MINUS -> GLFW_KEY_MINUS + case 0xBE:return 46; // DOM_VK_PERIOD -> GLFW_KEY_PERIOD + case 0xBF:return 47; // DOM_VK_SLASH -> GLFW_KEY_SLASH + case 0x30:return 48; // DOM_VK_0 -> GLFW_KEY_0 + case 0x31:return 49; // DOM_VK_1 -> GLFW_KEY_1 + case 0x32:return 50; // DOM_VK_2 -> GLFW_KEY_2 + case 0x33:return 51; // DOM_VK_3 -> GLFW_KEY_3 + case 0x34:return 52; // DOM_VK_4 -> GLFW_KEY_4 + case 0x35:return 53; // DOM_VK_5 -> GLFW_KEY_5 + case 0x36:return 54; // DOM_VK_6 -> GLFW_KEY_6 + case 0x37:return 55; // DOM_VK_7 -> GLFW_KEY_7 + case 0x38:return 56; // DOM_VK_8 -> GLFW_KEY_8 + case 0x39:return 57; // DOM_VK_9 -> GLFW_KEY_9 + case 0x3B:return 59; // DOM_VK_SEMICOLON -> GLFW_KEY_SEMICOLON + case 0x3D:return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL + case 0xBB:return 61; // DOM_VK_EQUALS -> GLFW_KEY_EQUAL + case 0x41:return 65; // DOM_VK_A -> GLFW_KEY_A + case 0x42:return 66; // DOM_VK_B -> GLFW_KEY_B + case 0x43:return 67; // DOM_VK_C -> GLFW_KEY_C + case 0x44:return 68; // DOM_VK_D -> GLFW_KEY_D + case 0x45:return 69; // DOM_VK_E -> GLFW_KEY_E + case 0x46:return 70; // DOM_VK_F -> GLFW_KEY_F + case 0x47:return 71; // DOM_VK_G -> GLFW_KEY_G + case 0x48:return 72; // DOM_VK_H -> GLFW_KEY_H + case 0x49:return 73; // DOM_VK_I -> GLFW_KEY_I + case 0x4A:return 74; // DOM_VK_J -> GLFW_KEY_J + case 0x4B:return 75; // DOM_VK_K -> GLFW_KEY_K + case 0x4C:return 76; // DOM_VK_L -> GLFW_KEY_L + case 0x4D:return 77; // DOM_VK_M -> GLFW_KEY_M + case 0x4E:return 78; // DOM_VK_N -> GLFW_KEY_N + case 0x4F:return 79; // DOM_VK_O -> GLFW_KEY_O + case 0x50:return 80; // DOM_VK_P -> GLFW_KEY_P + case 0x51:return 81; // DOM_VK_Q -> GLFW_KEY_Q + case 0x52:return 82; // DOM_VK_R -> GLFW_KEY_R + case 0x53:return 83; // DOM_VK_S -> GLFW_KEY_S + case 0x54:return 84; // DOM_VK_T -> GLFW_KEY_T + case 0x55:return 85; // DOM_VK_U -> GLFW_KEY_U + case 0x56:return 86; // DOM_VK_V -> GLFW_KEY_V + case 0x57:return 87; // DOM_VK_W -> GLFW_KEY_W + case 0x58:return 88; // DOM_VK_X -> GLFW_KEY_X + case 0x59:return 89; // DOM_VK_Y -> GLFW_KEY_Y + case 0x5a:return 90; // DOM_VK_Z -> GLFW_KEY_Z + case 0xDB:return 91; // DOM_VK_OPEN_BRACKET -> GLFW_KEY_LEFT_BRACKET + case 0xDC:return 92; // DOM_VK_BACKSLASH -> GLFW_KEY_BACKSLASH + case 0xDD:return 93; // DOM_VK_CLOSE_BRACKET -> GLFW_KEY_RIGHT_BRACKET + case 0xC0:return 96; // DOM_VK_BACK_QUOTE -> GLFW_KEY_GRAVE_ACCENT + + case 0x1B:return 256; // DOM_VK_ESCAPE -> GLFW_KEY_ESCAPE + case 0x0D:return 257; // DOM_VK_RETURN -> GLFW_KEY_ENTER + case 0x09:return 258; // DOM_VK_TAB -> GLFW_KEY_TAB + case 0x08:return 259; // DOM_VK_BACK -> GLFW_KEY_BACKSPACE + case 0x2D:return 260; // DOM_VK_INSERT -> GLFW_KEY_INSERT + case 0x2E:return 261; // DOM_VK_DELETE -> GLFW_KEY_DELETE + case 0x27:return 262; // DOM_VK_RIGHT -> GLFW_KEY_RIGHT + case 0x25:return 263; // DOM_VK_LEFT -> GLFW_KEY_LEFT + case 0x28:return 264; // DOM_VK_DOWN -> GLFW_KEY_DOWN + case 0x26:return 265; // DOM_VK_UP -> GLFW_KEY_UP + case 0x21:return 266; // DOM_VK_PAGE_UP -> GLFW_KEY_PAGE_UP + case 0x22:return 267; // DOM_VK_PAGE_DOWN -> GLFW_KEY_PAGE_DOWN + case 0x24:return 268; // DOM_VK_HOME -> GLFW_KEY_HOME + case 0x23:return 269; // DOM_VK_END -> GLFW_KEY_END + case 0x14:return 280; // DOM_VK_CAPS_LOCK -> GLFW_KEY_CAPS_LOCK + case 0x91:return 281; // DOM_VK_SCROLL_LOCK -> GLFW_KEY_SCROLL_LOCK + case 0x90:return 282; // DOM_VK_NUM_LOCK -> GLFW_KEY_NUM_LOCK + case 0x2C:return 283; // DOM_VK_SNAPSHOT -> GLFW_KEY_PRINT_SCREEN + case 0x13:return 284; // DOM_VK_PAUSE -> GLFW_KEY_PAUSE + case 0x70:return 290; // DOM_VK_F1 -> GLFW_KEY_F1 + case 0x71:return 291; // DOM_VK_F2 -> GLFW_KEY_F2 + case 0x72:return 292; // DOM_VK_F3 -> GLFW_KEY_F3 + case 0x73:return 293; // DOM_VK_F4 -> GLFW_KEY_F4 + case 0x74:return 294; // DOM_VK_F5 -> GLFW_KEY_F5 + case 0x75:return 295; // DOM_VK_F6 -> GLFW_KEY_F6 + case 0x76:return 296; // DOM_VK_F7 -> GLFW_KEY_F7 + case 0x77:return 297; // DOM_VK_F8 -> GLFW_KEY_F8 + case 0x78:return 298; // DOM_VK_F9 -> GLFW_KEY_F9 + case 0x79:return 299; // DOM_VK_F10 -> GLFW_KEY_F10 + case 0x7A:return 300; // DOM_VK_F11 -> GLFW_KEY_F11 + case 0x7B:return 301; // DOM_VK_F12 -> GLFW_KEY_F12 + case 0x7C:return 302; // DOM_VK_F13 -> GLFW_KEY_F13 + case 0x7D:return 303; // DOM_VK_F14 -> GLFW_KEY_F14 + case 0x7E:return 304; // DOM_VK_F15 -> GLFW_KEY_F15 + case 0x7F:return 305; // DOM_VK_F16 -> GLFW_KEY_F16 + case 0x80:return 306; // DOM_VK_F17 -> GLFW_KEY_F17 + case 0x81:return 307; // DOM_VK_F18 -> GLFW_KEY_F18 + case 0x82:return 308; // DOM_VK_F19 -> GLFW_KEY_F19 + case 0x83:return 309; // DOM_VK_F20 -> GLFW_KEY_F20 + case 0x84:return 310; // DOM_VK_F21 -> GLFW_KEY_F21 + case 0x85:return 311; // DOM_VK_F22 -> GLFW_KEY_F22 + case 0x86:return 312; // DOM_VK_F23 -> GLFW_KEY_F23 + case 0x87:return 313; // DOM_VK_F24 -> GLFW_KEY_F24 + case 0x88:return 314; // 0x88 (not used?) -> GLFW_KEY_F25 + case 0x60:return 320; // DOM_VK_NUMPAD0 -> GLFW_KEY_KP_0 + case 0x61:return 321; // DOM_VK_NUMPAD1 -> GLFW_KEY_KP_1 + case 0x62:return 322; // DOM_VK_NUMPAD2 -> GLFW_KEY_KP_2 + case 0x63:return 323; // DOM_VK_NUMPAD3 -> GLFW_KEY_KP_3 + case 0x64:return 324; // DOM_VK_NUMPAD4 -> GLFW_KEY_KP_4 + case 0x65:return 325; // DOM_VK_NUMPAD5 -> GLFW_KEY_KP_5 + case 0x66:return 326; // DOM_VK_NUMPAD6 -> GLFW_KEY_KP_6 + case 0x67:return 327; // DOM_VK_NUMPAD7 -> GLFW_KEY_KP_7 + case 0x68:return 328; // DOM_VK_NUMPAD8 -> GLFW_KEY_KP_8 + case 0x69:return 329; // DOM_VK_NUMPAD9 -> GLFW_KEY_KP_9 + case 0x6E:return 330; // DOM_VK_DECIMAL -> GLFW_KEY_KP_DECIMAL + case 0x6F:return 331; // DOM_VK_DIVIDE -> GLFW_KEY_KP_DIVIDE + case 0x6A:return 332; // DOM_VK_MULTIPLY -> GLFW_KEY_KP_MULTIPLY + case 0x6D:return 333; // DOM_VK_SUBTRACT -> GLFW_KEY_KP_SUBTRACT + case 0x6B:return 334; // DOM_VK_ADD -> GLFW_KEY_KP_ADD + // case 0x0D:return 335; // DOM_VK_RETURN -> GLFW_KEY_KP_ENTER (DOM_KEY_LOCATION_RIGHT) + // case 0x61:return 336; // DOM_VK_EQUALS -> GLFW_KEY_KP_EQUAL (DOM_KEY_LOCATION_RIGHT) + case 0x10:return 340; // DOM_VK_SHIFT -> GLFW_KEY_LEFT_SHIFT + case 0x11:return 341; // DOM_VK_CONTROL -> GLFW_KEY_LEFT_CONTROL + case 0x12:return 342; // DOM_VK_ALT -> GLFW_KEY_LEFT_ALT + case 0x5B:return 343; // DOM_VK_WIN -> GLFW_KEY_LEFT_SUPER + // case 0x10:return 344; // DOM_VK_SHIFT -> GLFW_KEY_RIGHT_SHIFT (DOM_KEY_LOCATION_RIGHT) + // case 0x11:return 345; // DOM_VK_CONTROL -> GLFW_KEY_RIGHT_CONTROL (DOM_KEY_LOCATION_RIGHT) + // case 0x12:return 346; // DOM_VK_ALT -> GLFW_KEY_RIGHT_ALT (DOM_KEY_LOCATION_RIGHT) + // case 0x5B:return 347; // DOM_VK_WIN -> GLFW_KEY_RIGHT_SUPER (DOM_KEY_LOCATION_RIGHT) + case 0x5D:return 348; // DOM_VK_CONTEXT_MENU -> GLFW_KEY_MENU + // XXX: GLFW_KEY_WORLD_1, GLFW_KEY_WORLD_2 what are these? + default:return -1; // GLFW_KEY_UNKNOWN + }; + },getModBits:function(win) { + var mod = 0; + if (win.keys[340]) mod |= 0x0001; // GLFW_MOD_SHIFT + if (win.keys[341]) mod |= 0x0002; // GLFW_MOD_CONTROL + if (win.keys[342]) mod |= 0x0004; // GLFW_MOD_ALT + if (win.keys[343]) mod |= 0x0008; // GLFW_MOD_SUPER + return mod; + },onKeyPress:function(event) { + if (!GLFW.active || !GLFW.active.charFunc) return; + if (event.ctrlKey || event.metaKey) return; + + // correct unicode charCode is only available with onKeyPress event + var charCode = event.charCode; + if (charCode == 0 || (charCode >= 0x00 && charCode <= 0x1F)) return; + + getWasmTableEntry(GLFW.active.charFunc)(GLFW.active.id, charCode); + },onKeyChanged:function(keyCode, status) { + if (!GLFW.active) return; + + var key = GLFW.DOMToGLFWKeyCode(keyCode); + if (key == -1) return; + + var repeat = status && GLFW.active.keys[key]; + GLFW.active.keys[key] = status; + GLFW.active.domKeys[keyCode] = status; + if (!GLFW.active.keyFunc) return; + + if (repeat) status = 2; // GLFW_REPEAT + getWasmTableEntry(GLFW.active.keyFunc)(GLFW.active.id, key, keyCode, status, GLFW.getModBits(GLFW.active)); + },onGamepadConnected:function(event) { + GLFW.refreshJoysticks(); + },onGamepadDisconnected:function(event) { + GLFW.refreshJoysticks(); + },onKeydown:function(event) { + GLFW.onKeyChanged(event.keyCode, 1); // GLFW_PRESS or GLFW_REPEAT + + // This logic comes directly from the sdl implementation. We cannot + // call preventDefault on all keydown events otherwise onKeyPress will + // not get called + if (event.keyCode === 8 /* backspace */ || event.keyCode === 9 /* tab */) { + event.preventDefault(); + } + },onKeyup:function(event) { + GLFW.onKeyChanged(event.keyCode, 0); // GLFW_RELEASE + },onBlur:function(event) { + if (!GLFW.active) return; + + for (var i = 0; i < GLFW.active.domKeys.length; ++i) { + if (GLFW.active.domKeys[i]) { + GLFW.onKeyChanged(i, 0); // GLFW_RELEASE + } + } + },onMousemove:function(event) { + if (!GLFW.active) return; + + Browser.calculateMouseEvent(event); + + if (event.target != Module["canvas"] || !GLFW.active.cursorPosFunc) return; + + getWasmTableEntry(GLFW.active.cursorPosFunc)(GLFW.active.id, Browser.mouseX, Browser.mouseY); + },DOMToGLFWMouseButton:function(event) { + // DOM and glfw have different button codes. + // See http://www.w3schools.com/jsref/event_button.asp. + var eventButton = event['button']; + if (eventButton > 0) { + if (eventButton == 1) { + eventButton = 2; + } else { + eventButton = 1; + } + } + return eventButton; + },onMouseenter:function(event) { + if (!GLFW.active) return; + + if (event.target != Module["canvas"] || !GLFW.active.cursorEnterFunc) return; + + getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 1); + },onMouseleave:function(event) { + if (!GLFW.active) return; + + if (event.target != Module["canvas"] || !GLFW.active.cursorEnterFunc) return; + + getWasmTableEntry(GLFW.active.cursorEnterFunc)(GLFW.active.id, 0); + },onMouseButtonChanged:function(event, status) { + if (!GLFW.active) return; + + Browser.calculateMouseEvent(event); + + if (event.target != Module["canvas"]) return; + + var eventButton = GLFW.DOMToGLFWMouseButton(event); + + if (status == 1) { // GLFW_PRESS + GLFW.active.buttons |= (1 << eventButton); + try { + event.target.setCapture(); + } catch (e) {} + } else { // GLFW_RELEASE + GLFW.active.buttons &= ~(1 << eventButton); + } + + if (!GLFW.active.mouseButtonFunc) return; + + getWasmTableEntry(GLFW.active.mouseButtonFunc)(GLFW.active.id, eventButton, status, GLFW.getModBits(GLFW.active)); + },onMouseButtonDown:function(event) { + if (!GLFW.active) return; + GLFW.onMouseButtonChanged(event, 1); // GLFW_PRESS + },onMouseButtonUp:function(event) { + if (!GLFW.active) return; + GLFW.onMouseButtonChanged(event, 0); // GLFW_RELEASE + },onMouseWheel:function(event) { + // Note the minus sign that flips browser wheel direction (positive direction scrolls page down) to native wheel direction (positive direction is mouse wheel up) + var delta = -Browser.getMouseWheelDelta(event); + delta = (delta == 0) ? 0 : (delta > 0 ? Math.max(delta, 1) : Math.min(delta, -1)); // Quantize to integer so that minimum scroll is at least +/- 1. + GLFW.wheelPos += delta; + + if (!GLFW.active || !GLFW.active.scrollFunc || event.target != Module['canvas']) return; + + var sx = 0; + var sy = delta; + if (event.type == 'mousewheel') { + sx = event.wheelDeltaX; + } else { + sx = event.deltaX; + } + + getWasmTableEntry(GLFW.active.scrollFunc)(GLFW.active.id, sx, sy); + + event.preventDefault(); + },onCanvasResize:function(width, height) { + if (!GLFW.active) return; + + var resizeNeeded = true; + + // If the client is requesting fullscreen mode + if (document["fullscreen"] || document["fullScreen"] || document["mozFullScreen"] || document["webkitIsFullScreen"]) { + GLFW.active.storedX = GLFW.active.x; + GLFW.active.storedY = GLFW.active.y; + GLFW.active.storedWidth = GLFW.active.width; + GLFW.active.storedHeight = GLFW.active.height; + GLFW.active.x = GLFW.active.y = 0; + GLFW.active.width = screen.width; + GLFW.active.height = screen.height; + GLFW.active.fullscreen = true; + + // If the client is reverting from fullscreen mode + } else if (GLFW.active.fullscreen == true) { + GLFW.active.x = GLFW.active.storedX; + GLFW.active.y = GLFW.active.storedY; + GLFW.active.width = GLFW.active.storedWidth; + GLFW.active.height = GLFW.active.storedHeight; + GLFW.active.fullscreen = false; + + // If the width/height values do not match current active window sizes + } else if (GLFW.active.width != width || GLFW.active.height != height) { + GLFW.active.width = width; + GLFW.active.height = height; + } else { + resizeNeeded = false; + } + + // If any of the above conditions were true, we need to resize the canvas + if (resizeNeeded) { + // resets the canvas size to counter the aspect preservation of Browser.updateCanvasDimensions + Browser.setCanvasSize(GLFW.active.width, GLFW.active.height, true); + // TODO: Client dimensions (clientWidth/clientHeight) vs pixel dimensions (width/height) of + // the canvas should drive window and framebuffer size respectfully. + GLFW.onWindowSizeChanged(); + GLFW.onFramebufferSizeChanged(); + } + },onWindowSizeChanged:function() { + if (!GLFW.active) return; + + if (!GLFW.active.windowSizeFunc) return; + + callUserCallback(function() { + + getWasmTableEntry(GLFW.active.windowSizeFunc)(GLFW.active.id, GLFW.active.width, GLFW.active.height); + }); + },onFramebufferSizeChanged:function() { + if (!GLFW.active) return; + + if (!GLFW.active.framebufferSizeFunc) return; + + callUserCallback(function() { + getWasmTableEntry(GLFW.active.framebufferSizeFunc)(GLFW.active.id, GLFW.active.width, GLFW.active.height); + }); + },getTime:function() { + return _emscripten_get_now() / 1000; + },setWindowTitle:function(winid, title) { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + win.title = UTF8ToString(title); + if (GLFW.active.id == win.id) { + document.title = win.title; + } + },setJoystickCallback:function(cbfun) { + GLFW.joystickFunc = cbfun; + GLFW.refreshJoysticks(); + },joys:{},lastGamepadState:[],lastGamepadStateFrame:null,refreshJoysticks:function() { + // Produce a new Gamepad API sample if we are ticking a new game frame, or if not using emscripten_set_main_loop() at all to drive animation. + if (Browser.mainLoop.currentFrameNumber !== GLFW.lastGamepadStateFrame || !Browser.mainLoop.currentFrameNumber) { + GLFW.lastGamepadState = navigator.getGamepads ? navigator.getGamepads() : (navigator.webkitGetGamepads ? navigator.webkitGetGamepads : []); + GLFW.lastGamepadStateFrame = Browser.mainLoop.currentFrameNumber; + + for (var joy = 0; joy < GLFW.lastGamepadState.length; ++joy) { + var gamepad = GLFW.lastGamepadState[joy]; + + if (gamepad) { + if (!GLFW.joys[joy]) { + out('glfw joystick connected:',joy); + GLFW.joys[joy] = { + id: allocateUTF8(gamepad.id), + buttonsCount: gamepad.buttons.length, + axesCount: gamepad.axes.length, + buttons: _malloc(gamepad.buttons.length), + axes: _malloc(gamepad.axes.length*4), + }; + + if (GLFW.joystickFunc) { + getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040001); // GLFW_CONNECTED + } + } + + var data = GLFW.joys[joy]; + + for (var i = 0; i < gamepad.buttons.length; ++i) { + setValue(data.buttons + i, gamepad.buttons[i].pressed, 'i8'); + } + + for (var i = 0; i < gamepad.axes.length; ++i) { + setValue(data.axes + i*4, gamepad.axes[i], 'float'); + } + } else { + if (GLFW.joys[joy]) { + out('glfw joystick disconnected',joy); + + if (GLFW.joystickFunc) { + getWasmTableEntry(GLFW.joystickFunc)(joy, 0x00040002); // GLFW_DISCONNECTED + } + + _free(GLFW.joys[joy].id); + _free(GLFW.joys[joy].buttons); + _free(GLFW.joys[joy].axes); + + delete GLFW.joys[joy]; + } + } + } + } + },setKeyCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.keyFunc; + win.keyFunc = cbfun; + return prevcbfun; + },setCharCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.charFunc; + win.charFunc = cbfun; + return prevcbfun; + },setMouseButtonCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.mouseButtonFunc; + win.mouseButtonFunc = cbfun; + return prevcbfun; + },setCursorPosCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.cursorPosFunc; + win.cursorPosFunc = cbfun; + return prevcbfun; + },setScrollCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.scrollFunc; + win.scrollFunc = cbfun; + return prevcbfun; + },setDropCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.dropFunc; + win.dropFunc = cbfun; + return prevcbfun; + },onDrop:function(event) { + if (!GLFW.active || !GLFW.active.dropFunc) return; + if (!event.dataTransfer || !event.dataTransfer.files || event.dataTransfer.files.length == 0) return; + + event.preventDefault(); + + var filenames = _malloc(event.dataTransfer.files.length*4); + var filenamesArray = []; + var count = event.dataTransfer.files.length; + + // Read and save the files to emscripten's FS + var written = 0; + var drop_dir = '.glfw_dropped_files'; + FS.createPath('/', drop_dir); + + function save(file) { + var path = '/' + drop_dir + '/' + file.name.replace(/\//g, '_'); + var reader = new FileReader(); + reader.onloadend = (e) => { + if (reader.readyState != 2) { // not DONE + ++written; + out('failed to read dropped file: '+file.name+': '+reader.error); + return; + } + + var data = e.target.result; + FS.writeFile(path, new Uint8Array(data)); + if (++written === count) { + getWasmTableEntry(GLFW.active.dropFunc)(GLFW.active.id, count, filenames); + + for (var i = 0; i < filenamesArray.length; ++i) { + _free(filenamesArray[i]); + } + _free(filenames); + } + }; + reader.readAsArrayBuffer(file); + + var filename = allocateUTF8(path); + filenamesArray.push(filename); + setValue(filenames + i*4, filename, 'i8*'); + } + + for (var i = 0; i < count; ++i) { + save(event.dataTransfer.files[i]); + } + + return false; + },onDragover:function(event) { + if (!GLFW.active || !GLFW.active.dropFunc) return; + + event.preventDefault(); + return false; + },setWindowSizeCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowSizeFunc; + win.windowSizeFunc = cbfun; + + return prevcbfun; + },setWindowCloseCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowCloseFunc; + win.windowCloseFunc = cbfun; + return prevcbfun; + },setWindowRefreshCallback:function(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.windowRefreshFunc; + win.windowRefreshFunc = cbfun; + return prevcbfun; + },onClickRequestPointerLock:function(e) { + if (!Browser.pointerLock && Module['canvas'].requestPointerLock) { + Module['canvas'].requestPointerLock(); + e.preventDefault(); + } + },setInputMode:function(winid, mode, value) { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + switch (mode) { + case 0x00033001: { // GLFW_CURSOR + switch (value) { + case 0x00034001: { // GLFW_CURSOR_NORMAL + win.inputModes[mode] = value; + Module['canvas'].removeEventListener('click', GLFW.onClickRequestPointerLock, true); + Module['canvas'].exitPointerLock(); + break; + } + case 0x00034002: { // GLFW_CURSOR_HIDDEN + out("glfwSetInputMode called with GLFW_CURSOR_HIDDEN value not implemented."); + break; + } + case 0x00034003: { // GLFW_CURSOR_DISABLED + win.inputModes[mode] = value; + Module['canvas'].addEventListener('click', GLFW.onClickRequestPointerLock, true); + Module['canvas'].requestPointerLock(); + break; + } + default: { + out("glfwSetInputMode called with unknown value parameter value: " + value + "."); + break; + } + } + break; + } + case 0x00033002: { // GLFW_STICKY_KEYS + out("glfwSetInputMode called with GLFW_STICKY_KEYS mode not implemented."); + break; + } + case 0x00033003: { // GLFW_STICKY_MOUSE_BUTTONS + out("glfwSetInputMode called with GLFW_STICKY_MOUSE_BUTTONS mode not implemented."); + break; + } + default: { + out("glfwSetInputMode called with unknown mode parameter value: " + mode + "."); + break; + } + } + },getKey:function(winid, key) { + var win = GLFW.WindowFromId(winid); + if (!win) return 0; + return win.keys[key]; + },getMouseButton:function(winid, button) { + var win = GLFW.WindowFromId(winid); + if (!win) return 0; + return (win.buttons & (1 << button)) > 0; + },getCursorPos:function(winid, x, y) { + setValue(x, Browser.mouseX, 'double'); + setValue(y, Browser.mouseY, 'double'); + },getMousePos:function(winid, x, y) { + setValue(x, Browser.mouseX, 'i32'); + setValue(y, Browser.mouseY, 'i32'); + },setCursorPos:function(winid, x, y) { + },getWindowPos:function(winid, x, y) { + var wx = 0; + var wy = 0; + + var win = GLFW.WindowFromId(winid); + if (win) { + wx = win.x; + wy = win.y; + } + + if (x) { + setValue(x, wx, 'i32'); + } + + if (y) { + setValue(y, wy, 'i32'); + } + },setWindowPos:function(winid, x, y) { + var win = GLFW.WindowFromId(winid); + if (!win) return; + win.x = x; + win.y = y; + },getWindowSize:function(winid, width, height) { + var ww = 0; + var wh = 0; + + var win = GLFW.WindowFromId(winid); + if (win) { + ww = win.width; + wh = win.height; + } + + if (width) { + setValue(width, ww, 'i32'); + } + + if (height) { + setValue(height, wh, 'i32'); + } + },setWindowSize:function(winid, width, height) { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + if (GLFW.active.id == win.id) { + if (width == screen.width && height == screen.height) { + Browser.requestFullscreen(); + } else { + Browser.exitFullscreen(); + Browser.setCanvasSize(width, height); + win.width = width; + win.height = height; + } + } + + if (!win.windowSizeFunc) return; + + getWasmTableEntry(win.windowSizeFunc)(win.id, width, height); + },createWindow:function(width, height, title, monitor, share) { + var i, id; + for (i = 0; i < GLFW.windows.length && GLFW.windows[i] !== null; i++) { + // no-op + } + if (i > 0) throw "glfwCreateWindow only supports one window at time currently"; + + // id for window + id = i + 1; + + // not valid + if (width <= 0 || height <= 0) return 0; + + if (monitor) { + Browser.requestFullscreen(); + } else { + Browser.setCanvasSize(width, height); + } + + // Create context when there are no existing alive windows + for (i = 0; i < GLFW.windows.length && GLFW.windows[i] == null; i++) { + // no-op + } + var useWebGL = GLFW.hints[0x00022001] > 0; // Use WebGL when we are told to based on GLFW_CLIENT_API + if (i == GLFW.windows.length) { + if (useWebGL) { + var contextAttributes = { + antialias: (GLFW.hints[0x0002100D] > 1), // GLFW_SAMPLES + depth: (GLFW.hints[0x00021005] > 0), // GLFW_DEPTH_BITS + stencil: (GLFW.hints[0x00021006] > 0), // GLFW_STENCIL_BITS + alpha: (GLFW.hints[0x00021004] > 0) // GLFW_ALPHA_BITS + } + Module.ctx = Browser.createContext(Module['canvas'], true, true, contextAttributes); + } else { + Browser.init(); + } + } + + // If context creation failed, do not return a valid window + if (!Module.ctx && useWebGL) return 0; + + // Get non alive id + var win = new GLFW_Window(id, width, height, title, monitor, share); + + // Set window to array + if (id - 1 == GLFW.windows.length) { + GLFW.windows.push(win); + } else { + GLFW.windows[id - 1] = win; + } + + GLFW.active = win; + return win.id; + },destroyWindow:function(winid) { + var win = GLFW.WindowFromId(winid); + if (!win) return; + + if (win.windowCloseFunc) + getWasmTableEntry(win.windowCloseFunc)(win.id); + + GLFW.windows[win.id - 1] = null; + if (GLFW.active.id == win.id) + GLFW.active = null; + + // Destroy context when no alive windows + for (var i = 0; i < GLFW.windows.length; i++) + if (GLFW.windows[i] !== null) return; + + Module.ctx = Browser.destroyContext(Module['canvas'], true, true); + },swapBuffers:function(winid) { + },GLFW2ParamToGLFW3Param:function(param) { + var table = { + 0x00030001:0, // GLFW_MOUSE_CURSOR + 0x00030002:0, // GLFW_STICKY_KEYS + 0x00030003:0, // GLFW_STICKY_MOUSE_BUTTONS + 0x00030004:0, // GLFW_SYSTEM_KEYS + 0x00030005:0, // GLFW_KEY_REPEAT + 0x00030006:0, // GLFW_AUTO_POLL_EVENTS + 0x00020001:0, // GLFW_OPENED + 0x00020002:0, // GLFW_ACTIVE + 0x00020003:0, // GLFW_ICONIFIED + 0x00020004:0, // GLFW_ACCELERATED + 0x00020005:0x00021001, // GLFW_RED_BITS + 0x00020006:0x00021002, // GLFW_GREEN_BITS + 0x00020007:0x00021003, // GLFW_BLUE_BITS + 0x00020008:0x00021004, // GLFW_ALPHA_BITS + 0x00020009:0x00021005, // GLFW_DEPTH_BITS + 0x0002000A:0x00021006, // GLFW_STENCIL_BITS + 0x0002000B:0x0002100F, // GLFW_REFRESH_RATE + 0x0002000C:0x00021007, // GLFW_ACCUM_RED_BITS + 0x0002000D:0x00021008, // GLFW_ACCUM_GREEN_BITS + 0x0002000E:0x00021009, // GLFW_ACCUM_BLUE_BITS + 0x0002000F:0x0002100A, // GLFW_ACCUM_ALPHA_BITS + 0x00020010:0x0002100B, // GLFW_AUX_BUFFERS + 0x00020011:0x0002100C, // GLFW_STEREO + 0x00020012:0, // GLFW_WINDOW_NO_RESIZE + 0x00020013:0x0002100D, // GLFW_FSAA_SAMPLES + 0x00020014:0x00022002, // GLFW_OPENGL_VERSION_MAJOR + 0x00020015:0x00022003, // GLFW_OPENGL_VERSION_MINOR + 0x00020016:0x00022006, // GLFW_OPENGL_FORWARD_COMPAT + 0x00020017:0x00022007, // GLFW_OPENGL_DEBUG_CONTEXT + 0x00020018:0x00022008, // GLFW_OPENGL_PROFILE + }; + return table[param]; + }}; + function _glfwCreateWindow(width, height, title, monitor, share) { + return GLFW.createWindow(width, height, title, monitor, share); + } + Module["_glfwCreateWindow"] = _glfwCreateWindow; + _glfwCreateWindow.sig = 'iiiiii'; + + function _glfwGetFramebufferSize(winid, width, height) { + var ww = 0; + var wh = 0; + + var win = GLFW.WindowFromId(winid); + if (win) { + ww = win.width; + wh = win.height; + } + + if (width) { + setValue(width, ww, 'i32'); + } + + if (height) { + setValue(height, wh, 'i32'); + } + } + Module["_glfwGetFramebufferSize"] = _glfwGetFramebufferSize; + _glfwGetFramebufferSize.sig = 'viii'; + + function _glfwInit() { + if (GLFW.windows) return 1; // GL_TRUE + + GLFW.initialTime = GLFW.getTime(); + GLFW.hints = GLFW.defaultHints; + GLFW.windows = new Array() + GLFW.active = null; + + window.addEventListener("gamepadconnected", GLFW.onGamepadConnected, true); + window.addEventListener("gamepaddisconnected", GLFW.onGamepadDisconnected, true); + window.addEventListener("keydown", GLFW.onKeydown, true); + window.addEventListener("keypress", GLFW.onKeyPress, true); + window.addEventListener("keyup", GLFW.onKeyup, true); + window.addEventListener("blur", GLFW.onBlur, true); + Module["canvas"].addEventListener("touchmove", GLFW.onMousemove, true); + Module["canvas"].addEventListener("touchstart", GLFW.onMouseButtonDown, true); + Module["canvas"].addEventListener("touchcancel", GLFW.onMouseButtonUp, true); + Module["canvas"].addEventListener("touchend", GLFW.onMouseButtonUp, true); + Module["canvas"].addEventListener("mousemove", GLFW.onMousemove, true); + Module["canvas"].addEventListener("mousedown", GLFW.onMouseButtonDown, true); + Module["canvas"].addEventListener("mouseup", GLFW.onMouseButtonUp, true); + Module["canvas"].addEventListener('wheel', GLFW.onMouseWheel, true); + Module["canvas"].addEventListener('mousewheel', GLFW.onMouseWheel, true); + Module["canvas"].addEventListener('mouseenter', GLFW.onMouseenter, true); + Module["canvas"].addEventListener('mouseleave', GLFW.onMouseleave, true); + Module["canvas"].addEventListener('drop', GLFW.onDrop, true); + Module["canvas"].addEventListener('dragover', GLFW.onDragover, true); + + Browser.resizeListeners.push(function(width, height) { + GLFW.onCanvasResize(width, height); + }); + return 1; // GL_TRUE + } + Module["_glfwInit"] = _glfwInit; + _glfwInit.sig = 'i'; + + function _glfwMakeContextCurrent(winid) {} + Module["_glfwMakeContextCurrent"] = _glfwMakeContextCurrent; + _glfwMakeContextCurrent.sig = 'vi'; + + function _glfwPollEvents() {} + Module["_glfwPollEvents"] = _glfwPollEvents; + _glfwPollEvents.sig = 'v'; + + function _glfwSetCursorPosCallback(winid, cbfun) { + return GLFW.setCursorPosCallback(winid, cbfun); + } + Module["_glfwSetCursorPosCallback"] = _glfwSetCursorPosCallback; + _glfwSetCursorPosCallback.sig = 'iii'; + + function _glfwSetErrorCallback(cbfun) { + var prevcbfun = GLFW.errorFunc; + GLFW.errorFunc = cbfun; + return prevcbfun; + } + Module["_glfwSetErrorCallback"] = _glfwSetErrorCallback; + _glfwSetErrorCallback.sig = 'ii'; + + function _glfwSetFramebufferSizeCallback(winid, cbfun) { + var win = GLFW.WindowFromId(winid); + if (!win) return null; + var prevcbfun = win.framebufferSizeFunc; + win.framebufferSizeFunc = cbfun; + return prevcbfun; + } + Module["_glfwSetFramebufferSizeCallback"] = _glfwSetFramebufferSizeCallback; + _glfwSetFramebufferSizeCallback.sig = 'iii'; + + function _glfwSetKeyCallback(winid, cbfun) { + return GLFW.setKeyCallback(winid, cbfun); + } + Module["_glfwSetKeyCallback"] = _glfwSetKeyCallback; + _glfwSetKeyCallback.sig = 'iii'; + + function _glfwSetMouseButtonCallback(winid, cbfun) { + return GLFW.setMouseButtonCallback(winid, cbfun); + } + Module["_glfwSetMouseButtonCallback"] = _glfwSetMouseButtonCallback; + _glfwSetMouseButtonCallback.sig = 'iii'; + + function _glfwSetScrollCallback(winid, cbfun) { + return GLFW.setScrollCallback(winid, cbfun); + } + Module["_glfwSetScrollCallback"] = _glfwSetScrollCallback; + _glfwSetScrollCallback.sig = 'iii'; + + function _glfwSetWindowShouldClose(winid, value) { + var win = GLFW.WindowFromId(winid); + if (!win) return; + win.shouldClose = value; + } + Module["_glfwSetWindowShouldClose"] = _glfwSetWindowShouldClose; + _glfwSetWindowShouldClose.sig = 'vii'; + + function _glfwSwapBuffers(winid) { + GLFW.swapBuffers(winid); + } + Module["_glfwSwapBuffers"] = _glfwSwapBuffers; + _glfwSwapBuffers.sig = 'vi'; + + function _glfwTerminate() { + window.removeEventListener("gamepadconnected", GLFW.onGamepadConnected, true); + window.removeEventListener("gamepaddisconnected", GLFW.onGamepadDisconnected, true); + window.removeEventListener("keydown", GLFW.onKeydown, true); + window.removeEventListener("keypress", GLFW.onKeyPress, true); + window.removeEventListener("keyup", GLFW.onKeyup, true); + window.removeEventListener("blur", GLFW.onBlur, true); + Module["canvas"].removeEventListener("touchmove", GLFW.onMousemove, true); + Module["canvas"].removeEventListener("touchstart", GLFW.onMouseButtonDown, true); + Module["canvas"].removeEventListener("touchcancel", GLFW.onMouseButtonUp, true); + Module["canvas"].removeEventListener("touchend", GLFW.onMouseButtonUp, true); + Module["canvas"].removeEventListener("mousemove", GLFW.onMousemove, true); + Module["canvas"].removeEventListener("mousedown", GLFW.onMouseButtonDown, true); + Module["canvas"].removeEventListener("mouseup", GLFW.onMouseButtonUp, true); + Module["canvas"].removeEventListener('wheel', GLFW.onMouseWheel, true); + Module["canvas"].removeEventListener('mousewheel', GLFW.onMouseWheel, true); + Module["canvas"].removeEventListener('mouseenter', GLFW.onMouseenter, true); + Module["canvas"].removeEventListener('mouseleave', GLFW.onMouseleave, true); + Module["canvas"].removeEventListener('drop', GLFW.onDrop, true); + Module["canvas"].removeEventListener('dragover', GLFW.onDragover, true); + + Module["canvas"].width = Module["canvas"].height = 1; + GLFW.windows = null; + GLFW.active = null; + } + Module["_glfwTerminate"] = _glfwTerminate; + _glfwTerminate.sig = 'v'; + + function _glfwWindowHint(target, hint) { + GLFW.hints[target] = hint; + } + Module["_glfwWindowHint"] = _glfwWindowHint; + _glfwWindowHint.sig = 'vii'; + + function _p8g_apply_matrix( + ) { + if (!Module['_p8g_apply_matrix']) abort("external symbol 'p8g_apply_matrix' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_apply_matrix'].apply(null, arguments); + } + + function _p8g_background( + ) { + if (!Module['_p8g_background']) abort("external symbol 'p8g_background' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_background'].apply(null, arguments); + } + + function _p8g_color_mode( + ) { + if (!Module['_p8g_color_mode']) abort("external symbol 'p8g_color_mode' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_color_mode'].apply(null, arguments); + } + + function _p8g_ellipse( + ) { + if (!Module['_p8g_ellipse']) abort("external symbol 'p8g_ellipse' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_ellipse'].apply(null, arguments); + } + + function _p8g_ellipse_mode( + ) { + if (!Module['_p8g_ellipse_mode']) abort("external symbol 'p8g_ellipse_mode' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_ellipse_mode'].apply(null, arguments); + } + + function _p8g_fill( + ) { + if (!Module['_p8g_fill']) abort("external symbol 'p8g_fill' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_fill'].apply(null, arguments); + } + + function _p8g_line( + ) { + if (!Module['_p8g_line']) abort("external symbol 'p8g_line' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_line'].apply(null, arguments); + } + + function _p8g_no_fill( + ) { + if (!Module['_p8g_no_fill']) abort("external symbol 'p8g_no_fill' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_no_fill'].apply(null, arguments); + } + + function _p8g_no_smooth( + ) { + if (!Module['_p8g_no_smooth']) abort("external symbol 'p8g_no_smooth' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_no_smooth'].apply(null, arguments); + } + + function _p8g_no_stroke( + ) { + if (!Module['_p8g_no_stroke']) abort("external symbol 'p8g_no_stroke' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_no_stroke'].apply(null, arguments); + } + + function _p8g_point( + ) { + if (!Module['_p8g_point']) abort("external symbol 'p8g_point' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_point'].apply(null, arguments); + } + + function _p8g_pop( + ) { + if (!Module['_p8g_pop']) abort("external symbol 'p8g_pop' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_pop'].apply(null, arguments); + } + + function _p8g_push( + ) { + if (!Module['_p8g_push']) abort("external symbol 'p8g_push' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_push'].apply(null, arguments); + } + + function _p8g_rect( + ) { + if (!Module['_p8g_rect']) abort("external symbol 'p8g_rect' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_rect'].apply(null, arguments); + } + + function _p8g_rect_mode( + ) { + if (!Module['_p8g_rect_mode']) abort("external symbol 'p8g_rect_mode' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_rect_mode'].apply(null, arguments); + } + + function _p8g_reset_matrix( + ) { + if (!Module['_p8g_reset_matrix']) abort("external symbol 'p8g_reset_matrix' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_reset_matrix'].apply(null, arguments); + } + + function _p8g_rotate( + ) { + if (!Module['_p8g_rotate']) abort("external symbol 'p8g_rotate' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_rotate'].apply(null, arguments); + } + + function _p8g_run( + ) { + if (!Module['_p8g_run']) abort("external symbol 'p8g_run' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_run'].apply(null, arguments); + } + + function _p8g_scale( + ) { + if (!Module['_p8g_scale']) abort("external symbol 'p8g_scale' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_scale'].apply(null, arguments); + } + + function _p8g_smooth( + ) { + if (!Module['_p8g_smooth']) abort("external symbol 'p8g_smooth' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_smooth'].apply(null, arguments); + } + + function _p8g_stroke( + ) { + if (!Module['_p8g_stroke']) abort("external symbol 'p8g_stroke' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_stroke'].apply(null, arguments); + } + + function _p8g_stroke_weight( + ) { + if (!Module['_p8g_stroke_weight']) abort("external symbol 'p8g_stroke_weight' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_stroke_weight'].apply(null, arguments); + } + + function _p8g_translate( + ) { + if (!Module['_p8g_translate']) abort("external symbol 'p8g_translate' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_translate'].apply(null, arguments); + } + + function _p8g_triangle( + ) { + if (!Module['_p8g_triangle']) abort("external symbol 'p8g_triangle' is missing. perhaps a side module was not linked in? if this function was expected to arrive from a system library, try to build the MAIN_MODULE with EMCC_FORCE_STDLIBS=1 in the environment"); + return Module['_p8g_triangle'].apply(null, arguments); + } + + function _setTempRet0(val) { + setTempRet0(val); + } + _setTempRet0.sig = 'vi'; + + + var FSNode = /** @constructor */ function(parent, name, mode, rdev) { + if (!parent) { + parent = this; // root node sets parent to itself + } + this.parent = parent; + this.mount = parent.mount; + this.mounted = null; + this.id = FS.nextInode++; + this.name = name; + this.mode = mode; + this.node_ops = {}; + this.stream_ops = {}; + this.rdev = rdev; + }; + var readMode = 292/*292*/ | 73/*73*/; + var writeMode = 146/*146*/; + Object.defineProperties(FSNode.prototype, { + read: { + get: /** @this{FSNode} */function() { + return (this.mode & readMode) === readMode; + }, + set: /** @this{FSNode} */function(val) { + val ? this.mode |= readMode : this.mode &= ~readMode; + } + }, + write: { + get: /** @this{FSNode} */function() { + return (this.mode & writeMode) === writeMode; + }, + set: /** @this{FSNode} */function(val) { + val ? this.mode |= writeMode : this.mode &= ~writeMode; + } + }, + isFolder: { + get: /** @this{FSNode} */function() { + return FS.isDir(this.mode); + } + }, + isDevice: { + get: /** @this{FSNode} */function() { + return FS.isChrdev(this.mode); + } + } + }); + FS.FSNode = FSNode; + FS.staticInit();; +ERRNO_CODES = { + 'EPERM': 63, + 'ENOENT': 44, + 'ESRCH': 71, + 'EINTR': 27, + 'EIO': 29, + 'ENXIO': 60, + 'E2BIG': 1, + 'ENOEXEC': 45, + 'EBADF': 8, + 'ECHILD': 12, + 'EAGAIN': 6, + 'EWOULDBLOCK': 6, + 'ENOMEM': 48, + 'EACCES': 2, + 'EFAULT': 21, + 'ENOTBLK': 105, + 'EBUSY': 10, + 'EEXIST': 20, + 'EXDEV': 75, + 'ENODEV': 43, + 'ENOTDIR': 54, + 'EISDIR': 31, + 'EINVAL': 28, + 'ENFILE': 41, + 'EMFILE': 33, + 'ENOTTY': 59, + 'ETXTBSY': 74, + 'EFBIG': 22, + 'ENOSPC': 51, + 'ESPIPE': 70, + 'EROFS': 69, + 'EMLINK': 34, + 'EPIPE': 64, + 'EDOM': 18, + 'ERANGE': 68, + 'ENOMSG': 49, + 'EIDRM': 24, + 'ECHRNG': 106, + 'EL2NSYNC': 156, + 'EL3HLT': 107, + 'EL3RST': 108, + 'ELNRNG': 109, + 'EUNATCH': 110, + 'ENOCSI': 111, + 'EL2HLT': 112, + 'EDEADLK': 16, + 'ENOLCK': 46, + 'EBADE': 113, + 'EBADR': 114, + 'EXFULL': 115, + 'ENOANO': 104, + 'EBADRQC': 103, + 'EBADSLT': 102, + 'EDEADLOCK': 16, + 'EBFONT': 101, + 'ENOSTR': 100, + 'ENODATA': 116, + 'ETIME': 117, + 'ENOSR': 118, + 'ENONET': 119, + 'ENOPKG': 120, + 'EREMOTE': 121, + 'ENOLINK': 47, + 'EADV': 122, + 'ESRMNT': 123, + 'ECOMM': 124, + 'EPROTO': 65, + 'EMULTIHOP': 36, + 'EDOTDOT': 125, + 'EBADMSG': 9, + 'ENOTUNIQ': 126, + 'EBADFD': 127, + 'EREMCHG': 128, + 'ELIBACC': 129, + 'ELIBBAD': 130, + 'ELIBSCN': 131, + 'ELIBMAX': 132, + 'ELIBEXEC': 133, + 'ENOSYS': 52, + 'ENOTEMPTY': 55, + 'ENAMETOOLONG': 37, + 'ELOOP': 32, + 'EOPNOTSUPP': 138, + 'EPFNOSUPPORT': 139, + 'ECONNRESET': 15, + 'ENOBUFS': 42, + 'EAFNOSUPPORT': 5, + 'EPROTOTYPE': 67, + 'ENOTSOCK': 57, + 'ENOPROTOOPT': 50, + 'ESHUTDOWN': 140, + 'ECONNREFUSED': 14, + 'EADDRINUSE': 3, + 'ECONNABORTED': 13, + 'ENETUNREACH': 40, + 'ENETDOWN': 38, + 'ETIMEDOUT': 73, + 'EHOSTDOWN': 142, + 'EHOSTUNREACH': 23, + 'EINPROGRESS': 26, + 'EALREADY': 7, + 'EDESTADDRREQ': 17, + 'EMSGSIZE': 35, + 'EPROTONOSUPPORT': 66, + 'ESOCKTNOSUPPORT': 137, + 'EADDRNOTAVAIL': 4, + 'ENETRESET': 39, + 'EISCONN': 30, + 'ENOTCONN': 53, + 'ETOOMANYREFS': 141, + 'EUSERS': 136, + 'EDQUOT': 19, + 'ESTALE': 72, + 'ENOTSUP': 138, + 'ENOMEDIUM': 148, + 'EILSEQ': 25, + 'EOVERFLOW': 61, + 'ECANCELED': 11, + 'ENOTRECOVERABLE': 56, + 'EOWNERDEAD': 62, + 'ESTRPIPE': 135, + };; +var GLctx;; +Module["requestFullscreen"] = function Module_requestFullscreen(lockPointer, resizeCanvas) { Browser.requestFullscreen(lockPointer, resizeCanvas) }; + Module["requestFullScreen"] = function Module_requestFullScreen() { Browser.requestFullScreen() }; + Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) { Browser.requestAnimationFrame(func) }; + Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) }; + Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.pause() }; + Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop.resume() }; + Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia() } + Module["createContext"] = function Module_createContext(canvas, useWebGL, setInModule, webGLContextAttributes) { return Browser.createContext(canvas, useWebGL, setInModule, webGLContextAttributes) }; +var ASSERTIONS = true; + + + +/** @type {function(string, boolean=, number=)} */ +function intArrayFromString(stringy, dontAddNull, length) { + var len = length > 0 ? length : lengthBytesUTF8(stringy)+1; + var u8array = new Array(len); + var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length); + if (dontAddNull) u8array.length = numBytesWritten; + return u8array; +} + +function intArrayToString(array) { + var ret = []; + for (var i = 0; i < array.length; i++) { + var chr = array[i]; + if (chr > 0xFF) { + if (ASSERTIONS) { + assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ') at offset ' + i + ' not in 0x00-0xFF.'); + } + chr &= 0xFF; + } + ret.push(String.fromCharCode(chr)); + } + return ret.join(''); +} + + +function checkIncomingModuleAPI() { + ignoredModuleProp('fetchSettings'); +} +var asmLibraryArg = { + "_ZN3p8g10backgroundEf": __ZN3p8g10backgroundEf, + "_ZN3p8g12strokeWeightEf": __ZN3p8g12strokeWeightEf, + "_ZN3p8g3runEiiNSt3__212basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE": __ZN3p8g3runEiiNSt3__212basic_stringIcNS0_11char_traitsIcEENS0_9allocatorIcEEEE, + "_ZN3p8g4lineEffff": __ZN3p8g4lineEffff, + "_ZN3p8g5pointEff": __ZN3p8g5pointEff, + "_ZN3p8g5widthE": __ZN3p8g5widthE, + "_ZN3p8g6heightE": __ZN3p8g6heightE, + "_ZN3p8g6mouseXE": __ZN3p8g6mouseXE, + "_ZN3p8g6mouseYE": __ZN3p8g6mouseYE, + "_ZN3p8g6strokeEf": __ZN3p8g6strokeEf, + "_ZN3p8g6strokeEfff": __ZN3p8g6strokeEfff, + "__cxa_allocate_exception": ___cxa_allocate_exception, + "__cxa_throw": ___cxa_throw, + "__heap_base": ___heap_base, + "__indirect_function_table": wasmTable, + "__memory_base": ___memory_base, + "__stack_pointer": ___stack_pointer, + "__table_base": ___table_base, + "abort": _abort, + "emscripten_memcpy_big": _emscripten_memcpy_big, + "emscripten_resize_heap": _emscripten_resize_heap, + "fd_close": _fd_close, + "fd_seek": _fd_seek, + "fd_write": _fd_write, + "getentropy": _getentropy, + "memory": wasmMemory, + "setTempRet0": _setTempRet0 +}; +var asm = createWasm(); +/** @type {function(...*):?} */ +var ___wasm_call_ctors = Module["___wasm_call_ctors"] = createExportWrapper("__wasm_call_ctors"); + +/** @type {function(...*):?} */ +var __ZN3p8g4drawEv = Module["__ZN3p8g4drawEv"] = createExportWrapper("_ZN3p8g4drawEv"); + +/** @type {function(...*):?} */ +var __ZN3p8g10mouseMovedEv = Module["__ZN3p8g10mouseMovedEv"] = createExportWrapper("_ZN3p8g10mouseMovedEv"); + +/** @type {function(...*):?} */ +var _memcpy = Module["_memcpy"] = createExportWrapper("memcpy"); + +/** @type {function(...*):?} */ +var _strlen = Module["_strlen"] = createExportWrapper("strlen"); + +/** @type {function(...*):?} */ +var _memset = Module["_memset"] = createExportWrapper("memset"); + +/** @type {function(...*):?} */ +var _main = Module["_main"] = createExportWrapper("main"); + +/** @type {function(...*):?} */ +var _powf = Module["_powf"] = createExportWrapper("powf"); + +/** @type {function(...*):?} */ +var ___errno_location = Module["___errno_location"] = createExportWrapper("__errno_location"); + +/** @type {function(...*):?} */ +var ___stdio_exit = Module["___stdio_exit"] = createExportWrapper("__stdio_exit"); + +/** @type {function(...*):?} */ +var _cosf = Module["_cosf"] = createExportWrapper("cosf"); + +/** @type {function(...*):?} */ +var _memmove = Module["_memmove"] = createExportWrapper("memmove"); + +/** @type {function(...*):?} */ +var _fmaxf = Module["_fmaxf"] = createExportWrapper("fmaxf"); + +/** @type {function(...*):?} */ +var _fminf = Module["_fminf"] = createExportWrapper("fminf"); + +/** @type {function(...*):?} */ +var _fprintf = Module["_fprintf"] = createExportWrapper("fprintf"); + +/** @type {function(...*):?} */ +var _memcmp = Module["_memcmp"] = createExportWrapper("memcmp"); + +/** @type {function(...*):?} */ +var _sinf = Module["_sinf"] = createExportWrapper("sinf"); + +/** @type {function(...*):?} */ +var _snprintf = Module["_snprintf"] = createExportWrapper("snprintf"); + +/** @type {function(...*):?} */ +var _strcmp = Module["_strcmp"] = createExportWrapper("strcmp"); + +/** @type {function(...*):?} */ +var _malloc = Module["_malloc"] = createExportWrapper("malloc"); + +/** @type {function(...*):?} */ +var _free = Module["_free"] = createExportWrapper("free"); + +/** @type {function(...*):?} */ +var _realloc = Module["_realloc"] = createExportWrapper("realloc"); + +/** @type {function(...*):?} */ +var _setThrew = Module["_setThrew"] = createExportWrapper("setThrew"); + +/** @type {function(...*):?} */ +var _emscripten_stack_set_limits = Module["_emscripten_stack_set_limits"] = function() { + return (_emscripten_stack_set_limits = Module["_emscripten_stack_set_limits"] = Module["asm"]["emscripten_stack_set_limits"]).apply(null, arguments); +}; + +/** @type {function(...*):?} */ +var _emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = function() { + return (_emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = Module["asm"]["emscripten_stack_get_free"]).apply(null, arguments); +}; + +/** @type {function(...*):?} */ +var _emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = function() { + return (_emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = Module["asm"]["emscripten_stack_get_base"]).apply(null, arguments); +}; + +/** @type {function(...*):?} */ +var _emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = function() { + return (_emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = Module["asm"]["emscripten_stack_get_end"]).apply(null, arguments); +}; + +/** @type {function(...*):?} */ +var stackSave = Module["stackSave"] = createExportWrapper("stackSave"); + +/** @type {function(...*):?} */ +var stackRestore = Module["stackRestore"] = createExportWrapper("stackRestore"); + +/** @type {function(...*):?} */ +var stackAlloc = Module["stackAlloc"] = createExportWrapper("stackAlloc"); + +/** @type {function(...*):?} */ +var __ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5c_strEv = Module["__ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5c_strEv"] = createExportWrapper("_ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5c_strEv"); + +/** @type {function(...*):?} */ +var __ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv = Module["__ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv"] = createExportWrapper("_ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE4dataEv"); + +/** @type {function(...*):?} */ +var __ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE9__is_longEv = Module["__ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE9__is_longEv"] = createExportWrapper("_ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE9__is_longEv"); + +/** @type {function(...*):?} */ +var __ZNKSt3__217__compressed_pairINS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5__repES5_E5firstEv = Module["__ZNKSt3__217__compressed_pairINS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5__repES5_E5firstEv"] = createExportWrapper("_ZNKSt3__217__compressed_pairINS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5__repES5_E5firstEv"); + +/** @type {function(...*):?} */ +var __ZNKSt3__222__compressed_pair_elemINS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5__repELi0ELb0EE5__getEv = Module["__ZNKSt3__222__compressed_pair_elemINS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5__repELi0ELb0EE5__getEv"] = createExportWrapper("_ZNKSt3__222__compressed_pair_elemINS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE5__repELi0ELb0EE5__getEv"); + +/** @type {function(...*):?} */ +var __ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE13__get_pointerEv = Module["__ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE13__get_pointerEv"] = createExportWrapper("_ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE13__get_pointerEv"); + +/** @type {function(...*):?} */ +var __ZNSt3__212__to_addressIKcEEPT_S3_ = Module["__ZNSt3__212__to_addressIKcEEPT_S3_"] = createExportWrapper("_ZNSt3__212__to_addressIKcEEPT_S3_"); + +/** @type {function(...*):?} */ +var __ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE18__get_long_pointerEv = Module["__ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE18__get_long_pointerEv"] = createExportWrapper("_ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE18__get_long_pointerEv"); + +/** @type {function(...*):?} */ +var __ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE19__get_short_pointerEv = Module["__ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE19__get_short_pointerEv"] = createExportWrapper("_ZNKSt3__212basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE19__get_short_pointerEv"); + +/** @type {function(...*):?} */ +var __ZNSt3__214pointer_traitsIPKcE10pointer_toERS1_ = Module["__ZNSt3__214pointer_traitsIPKcE10pointer_toERS1_"] = createExportWrapper("_ZNSt3__214pointer_traitsIPKcE10pointer_toERS1_"); + +/** @type {function(...*):?} */ +var __ZNSt3__29addressofIKcEEPT_RS2_ = Module["__ZNSt3__29addressofIKcEEPT_RS2_"] = createExportWrapper("_ZNSt3__29addressofIKcEEPT_RS2_"); + +/** @type {function(...*):?} */ +var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji"); + +var _stderr = Module['_stderr'] = 5536; + + + +// === Auto-generated postamble setup entry stuff === + +unexportedRuntimeFunction('intArrayFromString', false); +unexportedRuntimeFunction('intArrayToString', false); +unexportedRuntimeFunction('ccall', false); +unexportedRuntimeFunction('cwrap', false); +unexportedRuntimeFunction('setValue', false); +unexportedRuntimeFunction('getValue', false); +Module["allocate"] = allocate; +unexportedRuntimeFunction('UTF8ArrayToString', false); +unexportedRuntimeFunction('UTF8ToString', false); +unexportedRuntimeFunction('stringToUTF8Array', false); +unexportedRuntimeFunction('stringToUTF8', false); +unexportedRuntimeFunction('lengthBytesUTF8', false); +unexportedRuntimeFunction('stackTrace', false); +unexportedRuntimeFunction('addOnPreRun', false); +unexportedRuntimeFunction('addOnInit', false); +unexportedRuntimeFunction('addOnPreMain', false); +unexportedRuntimeFunction('addOnExit', false); +unexportedRuntimeFunction('addOnPostRun', false); +unexportedRuntimeFunction('writeStringToMemory', false); +unexportedRuntimeFunction('writeArrayToMemory', false); +unexportedRuntimeFunction('writeAsciiToMemory', false); +unexportedRuntimeFunction('addRunDependency', true); +unexportedRuntimeFunction('removeRunDependency', true); +unexportedRuntimeFunction('FS_createFolder', false); +unexportedRuntimeFunction('FS_createPath', true); +unexportedRuntimeFunction('FS_createDataFile', true); +unexportedRuntimeFunction('FS_createPreloadedFile', true); +unexportedRuntimeFunction('FS_createLazyFile', true); +unexportedRuntimeFunction('FS_createLink', false); +unexportedRuntimeFunction('FS_createDevice', true); +unexportedRuntimeFunction('FS_unlink', true); +unexportedRuntimeFunction('getLEB', false); +unexportedRuntimeFunction('getFunctionTables', false); +unexportedRuntimeFunction('alignFunctionTables', false); +unexportedRuntimeFunction('registerFunctions', false); +unexportedRuntimeFunction('addFunction', false); +unexportedRuntimeFunction('removeFunction', false); +unexportedRuntimeFunction('getFuncWrapper', false); +unexportedRuntimeFunction('prettyPrint', false); +unexportedRuntimeFunction('dynCall', false); +unexportedRuntimeFunction('getCompilerSetting', false); +unexportedRuntimeFunction('print', false); +unexportedRuntimeFunction('printErr', false); +unexportedRuntimeFunction('getTempRet0', false); +unexportedRuntimeFunction('setTempRet0', false); +unexportedRuntimeFunction('callMain', false); +unexportedRuntimeFunction('abort', false); +unexportedRuntimeFunction('keepRuntimeAlive', false); +unexportedRuntimeFunction('zeroMemory', false); +unexportedRuntimeFunction('stringToNewUTF8', false); +unexportedRuntimeFunction('abortOnCannotGrowMemory', false); +unexportedRuntimeFunction('emscripten_realloc_buffer', false); +unexportedRuntimeFunction('ENV', false); +unexportedRuntimeFunction('ERRNO_CODES', false); +unexportedRuntimeFunction('ERRNO_MESSAGES', false); +unexportedRuntimeFunction('setErrNo', false); +unexportedRuntimeFunction('inetPton4', false); +unexportedRuntimeFunction('inetNtop4', false); +unexportedRuntimeFunction('inetPton6', false); +unexportedRuntimeFunction('inetNtop6', false); +unexportedRuntimeFunction('readSockaddr', false); +unexportedRuntimeFunction('writeSockaddr', false); +unexportedRuntimeFunction('DNS', false); +unexportedRuntimeFunction('getHostByName', false); +unexportedRuntimeFunction('Protocols', false); +unexportedRuntimeFunction('Sockets', false); +unexportedRuntimeFunction('getRandomDevice', false); +unexportedRuntimeFunction('traverseStack', false); +unexportedRuntimeFunction('UNWIND_CACHE', false); +unexportedRuntimeFunction('convertPCtoSourceLocation', false); +unexportedRuntimeFunction('readAsmConstArgsArray', false); +unexportedRuntimeFunction('readAsmConstArgs', false); +unexportedRuntimeFunction('mainThreadEM_ASM', false); +unexportedRuntimeFunction('jstoi_q', false); +unexportedRuntimeFunction('jstoi_s', false); +unexportedRuntimeFunction('getExecutableName', false); +unexportedRuntimeFunction('listenOnce', false); +unexportedRuntimeFunction('autoResumeAudioContext', false); +unexportedRuntimeFunction('dynCallLegacy', false); +unexportedRuntimeFunction('getDynCaller', false); +unexportedRuntimeFunction('dynCall', false); +unexportedRuntimeFunction('handleException', false); +unexportedRuntimeFunction('runtimeKeepalivePush', false); +unexportedRuntimeFunction('runtimeKeepalivePop', false); +unexportedRuntimeFunction('callUserCallback', false); +unexportedRuntimeFunction('maybeExit', false); +unexportedRuntimeFunction('safeSetTimeout', false); +unexportedRuntimeFunction('asmjsMangle', false); +unexportedRuntimeFunction('asyncLoad', false); +unexportedRuntimeFunction('alignMemory', false); +unexportedRuntimeFunction('mmapAlloc', false); +unexportedRuntimeFunction('reallyNegative', false); +unexportedRuntimeFunction('unSign', false); +unexportedRuntimeFunction('reSign', false); +unexportedRuntimeFunction('formatString', false); +unexportedRuntimeFunction('PATH', false); +unexportedRuntimeFunction('PATH_FS', false); +unexportedRuntimeFunction('SYSCALLS', false); +unexportedRuntimeFunction('getSocketFromFD', false); +unexportedRuntimeFunction('getSocketAddress', false); +unexportedRuntimeFunction('JSEvents', false); +unexportedRuntimeFunction('registerKeyEventCallback', false); +unexportedRuntimeFunction('specialHTMLTargets', false); +unexportedRuntimeFunction('maybeCStringToJsString', false); +unexportedRuntimeFunction('findEventTarget', false); +unexportedRuntimeFunction('findCanvasEventTarget', false); +unexportedRuntimeFunction('getBoundingClientRect', false); +unexportedRuntimeFunction('fillMouseEventData', false); +unexportedRuntimeFunction('registerMouseEventCallback', false); +unexportedRuntimeFunction('registerWheelEventCallback', false); +unexportedRuntimeFunction('registerUiEventCallback', false); +unexportedRuntimeFunction('registerFocusEventCallback', false); +unexportedRuntimeFunction('fillDeviceOrientationEventData', false); +unexportedRuntimeFunction('registerDeviceOrientationEventCallback', false); +unexportedRuntimeFunction('fillDeviceMotionEventData', false); +unexportedRuntimeFunction('registerDeviceMotionEventCallback', false); +unexportedRuntimeFunction('screenOrientation', false); +unexportedRuntimeFunction('fillOrientationChangeEventData', false); +unexportedRuntimeFunction('registerOrientationChangeEventCallback', false); +unexportedRuntimeFunction('fillFullscreenChangeEventData', false); +unexportedRuntimeFunction('registerFullscreenChangeEventCallback', false); +unexportedRuntimeFunction('registerRestoreOldStyle', false); +unexportedRuntimeFunction('hideEverythingExceptGivenElement', false); +unexportedRuntimeFunction('restoreHiddenElements', false); +unexportedRuntimeFunction('setLetterbox', false); +unexportedRuntimeFunction('currentFullscreenStrategy', false); +unexportedRuntimeFunction('restoreOldWindowedStyle', false); +unexportedRuntimeFunction('softFullscreenResizeWebGLRenderTarget', false); +unexportedRuntimeFunction('doRequestFullscreen', false); +unexportedRuntimeFunction('fillPointerlockChangeEventData', false); +unexportedRuntimeFunction('registerPointerlockChangeEventCallback', false); +unexportedRuntimeFunction('registerPointerlockErrorEventCallback', false); +unexportedRuntimeFunction('requestPointerLock', false); +unexportedRuntimeFunction('fillVisibilityChangeEventData', false); +unexportedRuntimeFunction('registerVisibilityChangeEventCallback', false); +unexportedRuntimeFunction('registerTouchEventCallback', false); +unexportedRuntimeFunction('fillGamepadEventData', false); +unexportedRuntimeFunction('registerGamepadEventCallback', false); +unexportedRuntimeFunction('registerBeforeUnloadEventCallback', false); +unexportedRuntimeFunction('fillBatteryEventData', false); +unexportedRuntimeFunction('battery', false); +unexportedRuntimeFunction('registerBatteryEventCallback', false); +unexportedRuntimeFunction('setCanvasElementSize', false); +unexportedRuntimeFunction('getCanvasElementSize', false); +unexportedRuntimeFunction('demangle', false); +unexportedRuntimeFunction('demangleAll', false); +unexportedRuntimeFunction('jsStackTrace', false); +unexportedRuntimeFunction('stackTrace', false); +unexportedRuntimeFunction('getEnvStrings', false); +unexportedRuntimeFunction('checkWasiClock', false); +unexportedRuntimeFunction('writeI53ToI64', false); +unexportedRuntimeFunction('writeI53ToI64Clamped', false); +unexportedRuntimeFunction('writeI53ToI64Signaling', false); +unexportedRuntimeFunction('writeI53ToU64Clamped', false); +unexportedRuntimeFunction('writeI53ToU64Signaling', false); +unexportedRuntimeFunction('readI53FromI64', false); +unexportedRuntimeFunction('readI53FromU64', false); +unexportedRuntimeFunction('convertI32PairToI53', false); +unexportedRuntimeFunction('convertU32PairToI53', false); +unexportedRuntimeFunction('GOT', false); +unexportedRuntimeFunction('LDSO', false); +unexportedRuntimeFunction('getMemory', false); +unexportedRuntimeFunction('mergeLibSymbols', false); +unexportedRuntimeFunction('loadWebAssemblyModule', false); +unexportedRuntimeFunction('loadDynamicLibrary', false); +unexportedRuntimeFunction('dlopenInternal', false); +unexportedRuntimeFunction('setImmediateWrapped', false); +unexportedRuntimeFunction('clearImmediateWrapped', false); +unexportedRuntimeFunction('polyfillSetImmediate', false); +unexportedRuntimeFunction('uncaughtExceptionCount', false); +unexportedRuntimeFunction('exceptionLast', false); +unexportedRuntimeFunction('exceptionCaught', false); +unexportedRuntimeFunction('ExceptionInfo', false); +unexportedRuntimeFunction('CatchInfo', false); +unexportedRuntimeFunction('exception_addRef', false); +unexportedRuntimeFunction('exception_decRef', false); +unexportedRuntimeFunction('Browser', false); +unexportedRuntimeFunction('funcWrappers', false); +unexportedRuntimeFunction('getFuncWrapper', false); +unexportedRuntimeFunction('setMainLoop', false); +unexportedRuntimeFunction('wget', false); +unexportedRuntimeFunction('FS', false); +unexportedRuntimeFunction('MEMFS', false); +unexportedRuntimeFunction('TTY', false); +unexportedRuntimeFunction('PIPEFS', false); +unexportedRuntimeFunction('SOCKFS', false); +unexportedRuntimeFunction('_setNetworkCallback', false); +unexportedRuntimeFunction('tempFixedLengthArray', false); +unexportedRuntimeFunction('miniTempWebGLFloatBuffers', false); +unexportedRuntimeFunction('heapObjectForWebGLType', false); +unexportedRuntimeFunction('heapAccessShiftForWebGLHeap', false); +unexportedRuntimeFunction('GL', false); +unexportedRuntimeFunction('emscriptenWebGLGet', false); +unexportedRuntimeFunction('computeUnpackAlignedImageSize', false); +unexportedRuntimeFunction('emscriptenWebGLGetTexPixelData', false); +unexportedRuntimeFunction('emscriptenWebGLGetUniform', false); +unexportedRuntimeFunction('webglGetUniformLocation', false); +unexportedRuntimeFunction('webglPrepareUniformLocationsBeforeFirstUse', false); +unexportedRuntimeFunction('webglGetLeftBracePos', false); +unexportedRuntimeFunction('emscriptenWebGLGetVertexAttrib', false); +unexportedRuntimeFunction('emscriptenWebGLGetBufferBinding', false); +unexportedRuntimeFunction('emscriptenWebGLValidateMapBufferTarget', false); +unexportedRuntimeFunction('writeGLArray', false); +unexportedRuntimeFunction('AL', false); +unexportedRuntimeFunction('SDL_unicode', false); +unexportedRuntimeFunction('SDL_ttfContext', false); +unexportedRuntimeFunction('SDL_audio', false); +unexportedRuntimeFunction('SDL', false); +unexportedRuntimeFunction('SDL_gfx', false); +unexportedRuntimeFunction('GLUT', false); +unexportedRuntimeFunction('EGL', false); +unexportedRuntimeFunction('GLFW_Window', false); +unexportedRuntimeFunction('GLFW', false); +unexportedRuntimeFunction('GLEW', false); +unexportedRuntimeFunction('IDBStore', false); +unexportedRuntimeFunction('runAndAbortIfError', false); +unexportedRuntimeFunction('emscriptenWebGLGetIndexed', false); +unexportedRuntimeFunction('warnOnce', false); +unexportedRuntimeFunction('stackSave', false); +unexportedRuntimeFunction('stackRestore', false); +unexportedRuntimeFunction('stackAlloc', false); +unexportedRuntimeFunction('AsciiToString', false); +unexportedRuntimeFunction('stringToAscii', false); +unexportedRuntimeFunction('UTF16ToString', false); +unexportedRuntimeFunction('stringToUTF16', false); +unexportedRuntimeFunction('lengthBytesUTF16', false); +unexportedRuntimeFunction('UTF32ToString', false); +unexportedRuntimeFunction('stringToUTF32', false); +unexportedRuntimeFunction('lengthBytesUTF32', false); +unexportedRuntimeFunction('allocateUTF8', false); +unexportedRuntimeFunction('allocateUTF8OnStack', false); +Module["writeStackCookie"] = writeStackCookie; +Module["checkStackCookie"] = checkStackCookie; +unexportedRuntimeSymbol('ALLOC_NORMAL', false); +unexportedRuntimeSymbol('ALLOC_STACK', false); + +var calledRun; + +/** + * @constructor + * @this {ExitStatus} + */ +function ExitStatus(status) { + this.name = "ExitStatus"; + this.message = "Program terminated with exit(" + status + ")"; + this.status = status; +} + +var calledMain = false; + +dependenciesFulfilled = function runCaller() { + // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false) + if (!calledRun) run(); + if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled +}; + +function callMain(args) { + assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on Module["onRuntimeInitialized"])'); + assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called'); + + var entryFunction = Module['_main']; + + // Main modules can't tell if they have main() at compile time, since it may + // arrive from a dynamic library. + if (!entryFunction) return; + + args = args || []; + + var argc = args.length+1; + var argv = stackAlloc((argc + 1) * 4); + HEAP32[argv >> 2] = allocateUTF8OnStack(thisProgram); + for (var i = 1; i < argc; i++) { + HEAP32[(argv >> 2) + i] = allocateUTF8OnStack(args[i - 1]); + } + HEAP32[(argv >> 2) + argc] = 0; + + try { + + var ret = entryFunction(argc, argv); + + // In PROXY_TO_PTHREAD builds, we should never exit the runtime below, as + // execution is asynchronously handed off to a pthread. + // if we're not running an evented main loop, it's time to exit + exit(ret, /* implicit = */ true); + return ret; + } + catch (e) { + return handleException(e); + } finally { + calledMain = true; + + } +} + +function stackCheckInit() { + // This is normally called automatically during __wasm_call_ctors but need to + // get these values before even running any of the ctors so we call it redundantly + // here. + // TODO(sbc): Move writeStackCookie to native to to avoid this. + _emscripten_stack_set_limits(5251904, 9024); + writeStackCookie(); +} + +var dylibsLoaded = false; + +/** @type {function(Array=)} */ +function run(args) { + args = args || arguments_; + + if (runDependencies > 0) { + return; + } + + stackCheckInit(); + + if (!dylibsLoaded) { + // Loading of dynamic libraries needs to happen on each thread, so we can't + // use the normal __ATPRERUN__ mechanism. + preloadDylibs(); + dylibsLoaded = true; + + // Loading dylibs can add run dependencies. + if (runDependencies > 0) { + return; + } + } + + preRun(); + + // a preRun added a dependency, run will be called later + if (runDependencies > 0) { + return; + } + + function doRun() { + // run may have just been called through dependencies being fulfilled just in this very frame, + // or while the async setStatus time below was happening + if (calledRun) return; + calledRun = true; + Module['calledRun'] = true; + + if (ABORT) return; + + initRuntime(); + + preMain(); + + if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized'](); + + if (shouldRunNow) callMain(args); + + postRun(); + } + + if (Module['setStatus']) { + Module['setStatus']('Running...'); + setTimeout(function() { + setTimeout(function() { + Module['setStatus'](''); + }, 1); + doRun(); + }, 1); + } else + { + doRun(); + } + checkStackCookie(); +} +Module['run'] = run; + +function checkUnflushedContent() { + // Compiler settings do not allow exiting the runtime, so flushing + // the streams is not possible. but in ASSERTIONS mode we check + // if there was something to flush, and if so tell the user they + // should request that the runtime be exitable. + // Normally we would not even include flush() at all, but in ASSERTIONS + // builds we do so just for this check, and here we see if there is any + // content to flush, that is, we check if there would have been + // something a non-ASSERTIONS build would have not seen. + // How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0 + // mode (which has its own special function for this; otherwise, all + // the code is inside libc) + var oldOut = out; + var oldErr = err; + var has = false; + out = err = (x) => { + has = true; + } + try { // it doesn't matter if it fails + ___stdio_exit(); + // also flush in the JS FS layer + ['stdout', 'stderr'].forEach(function(name) { + var info = FS.analyzePath('/dev/' + name); + if (!info) return; + var stream = info.object; + var rdev = stream.rdev; + var tty = TTY.ttys[rdev]; + if (tty && tty.output && tty.output.length) { + has = true; + } + }); + } catch(e) {} + out = oldOut; + err = oldErr; + if (has) { + warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline when you printf etc.'); + } +} + +/** @param {boolean|number=} implicit */ +function exit(status, implicit) { + EXITSTATUS = status; + + checkUnflushedContent(); + + // if exit() was called explicitly, warn the user if the runtime isn't actually being shut down + if (keepRuntimeAlive() && !implicit) { + var msg = 'program exited (with status: ' + status + '), but EXIT_RUNTIME is not set, so halting execution but not exiting the runtime or preventing further async execution (build with EXIT_RUNTIME=1, if you want a true shutdown)'; + err(msg); + } + + procExit(status); +} + +function procExit(code) { + EXITSTATUS = code; + if (!keepRuntimeAlive()) { + if (Module['onExit']) Module['onExit'](code); + ABORT = true; + } + quit_(code, new ExitStatus(code)); +} + +if (Module['preInit']) { + if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']]; + while (Module['preInit'].length > 0) { + Module['preInit'].pop()(); + } +} + +// shouldRunNow refers to calling main(), not run(). +var shouldRunNow = true; + +if (Module['noInitialRun']) shouldRunNow = false; + +run(); + + + + + diff --git a/docs/static/examples/astar.wasm b/docs/static/examples/astar.wasm new file mode 100755 index 0000000..b491473 Binary files /dev/null and b/docs/static/examples/astar.wasm differ diff --git a/docs/static/examples/p8g++.wasm b/docs/static/examples/p8g++.wasm new file mode 100755 index 0000000..9618ce9 Binary files /dev/null and b/docs/static/examples/p8g++.wasm differ diff --git a/docs/static/examples/p8g.wasm b/docs/static/examples/p8g.wasm index ec77d19..78d5f12 100644 Binary files a/docs/static/examples/p8g.wasm and b/docs/static/examples/p8g.wasm differ diff --git a/docs/static/examples/src/astar/c++/astar.cpp b/docs/static/examples/src/astar/c++/astar.cpp new file mode 100644 index 0000000..ef36572 --- /dev/null +++ b/docs/static/examples/src/astar/c++/astar.cpp @@ -0,0 +1,146 @@ +#include "astar.hpp" + +#include +#include +#include + +struct Node { + int x, y; + float gScore, hScore; + Node* cameFrom; + + Node(int x, int y, float gScore, float hScore, Node* cameFrom) + : x(x) + , y(y) + , gScore(gScore) + , hScore(hScore) + , cameFrom(cameFrom) { + } + + bool hasCoords(int x, int y) { + return this->x == x && this->y == y; + } +}; + +struct NodeCompare { + bool operator()(const Node* a, const Node* b) { + return a->gScore + a->hScore > b->gScore + b->hScore; + } +}; + +/** + * MyPriorityQueue is an extension of + * std::priority_queue that allows iteration + */ +template< + class T, + class Container = std::vector, + class Compare = std::less +> struct MyPriorityQueue : std::priority_queue { + typename Container::iterator begin() { + return std::priority_queue::c.begin(); + } + typename Container::iterator end() { + return std::priority_queue::c.end(); + } +}; + +const float SQUARE_ROOT_OF_TWO = sqrtf(2.0f); + +float AStar::heuristic_cost_estimate(int x1, int y1, int x2, int y2) { + if (moveDiagonally) { + // euclidian distance + return sqrtf(powf(x1 - x2, 2.0f) + powf(y1 - y2, 2.0f)); + } else { + // manhattan distance + return abs(x1 - x2) + abs(y1 - y2); + } +} + +bool AStar::isCollisionAt(int x, int y) { + return collisionGrid[y * cols + x]; +} + +/** + * Implementation of A* search algorithm + * based on https://en.wikipedia.org/wiki/A*_search_algorithm + */ +std::vector> AStar::findPath( + int x1, int y1, int x2, int y2 +) { + std::vector> path; + if (isCollisionAt(x1, y1) || isCollisionAt(x2, y2)) { + return path; + } + std::vector closedSet; + MyPriorityQueue, NodeCompare> openSet; + Node* start = new Node( + x1, y1, 0.0f, heuristic_cost_estimate(x1, y1, x2, y2), nullptr + ); + openSet.push(start); + + Node* current = nullptr; + while (!openSet.empty()) { + current = openSet.top(); + if (current->hasCoords(x2, y2)) { + break; + } + + openSet.pop(); + closedSet.push_back(current); + + for (int i = 0; i < (moveDiagonally ? 8 : 4); i++) { + int x = current->x + directions[i].first; + int y = current->y + directions[i].second; + if (x < 0 || x >= cols + || y < 0 || y >= rows + || isCollisionAt(x, y)) { + continue; + } + bool cont = false; + for (Node* node : closedSet) { + if (node->hasCoords(x, y)) { + cont = true; + break; + } + } + if (cont) { + continue; + } + + float dist_between = (i < 4 ? 1.0f : SQUARE_ROOT_OF_TWO); + int tentative_gScore = current->gScore + dist_between; + + Node* neighbor = nullptr; + for (Node* node : openSet) { + if (node->hasCoords(x, y)) { + neighbor = node; + break; + } + } + if (neighbor == nullptr) { // neighbor not in openSet + neighbor = new Node( + x, + y, + tentative_gScore, + heuristic_cost_estimate(x, y, x2, y2), + current + ); + openSet.push(neighbor); + } else if (tentative_gScore < neighbor->gScore) { + neighbor->cameFrom = current; + neighbor->gScore = tentative_gScore; + } + } + } + + if (current != nullptr && current->hasCoords(x2, y2)) { + while(current != nullptr) { + path.push_back({current->x, current->y}); + current = current->cameFrom; + } + std::reverse(path.begin(), path.end()); + } + + return path; +} \ No newline at end of file diff --git a/docs/static/examples/src/astar/c++/astar.hpp b/docs/static/examples/src/astar/c++/astar.hpp new file mode 100644 index 0000000..f6315a0 --- /dev/null +++ b/docs/static/examples/src/astar/c++/astar.hpp @@ -0,0 +1,33 @@ +#ifndef ASTAR_HPP +#define ASTAR_HPP + +#include +#include + +class AStar { +public: + AStar(const std::vector& collisionGrid, + int cols, int rows, bool moveDiagonally) + : collisionGrid(collisionGrid) + , cols(cols) + , rows(rows) + , moveDiagonally(moveDiagonally) { + } + std::vector> findPath( + int x1, int y1, int x2, int y2 + ); + +private: + const std::vector& collisionGrid; + int cols, rows; + bool moveDiagonally; + const std::vector> directions = { + { 0, 1 }, { 1, 0 }, { 0, -1 }, { -1, 0 }, + { -1, -1 }, { 1, 1 }, { -1, 1 }, { 1, -1 } + }; + + float heuristic_cost_estimate(int x1, int y1, int x2, int y2); + bool isCollisionAt(int x, int y); +}; + +#endif /* ASTAR_HPP */ \ No newline at end of file diff --git a/docs/static/examples/src/astar/c++/rng.cpp b/docs/static/examples/src/astar/c++/rng.cpp new file mode 100644 index 0000000..34a52b2 --- /dev/null +++ b/docs/static/examples/src/astar/c++/rng.cpp @@ -0,0 +1,15 @@ +#include "rng.hpp" + +Rng& Rng::getInstance() { + static Rng instance; + return instance; +} + +float Rng::random(float min, float max) { + std::uniform_real_distribution dist(min, max); + return dist(mt); +} + +void Rng::randomSeed(unsigned int seed) { + mt.seed(seed); +} \ No newline at end of file diff --git a/docs/static/examples/src/astar/c++/rng.hpp b/docs/static/examples/src/astar/c++/rng.hpp new file mode 100644 index 0000000..675fa0f --- /dev/null +++ b/docs/static/examples/src/astar/c++/rng.hpp @@ -0,0 +1,19 @@ +#ifndef RNG_HPP +#define RNG_HPP + +#include + +class Rng { +public: + static Rng& getInstance(); + float random(float min, float max); + void randomSeed(unsigned int seed); +private: + std::mt19937 mt; + + Rng() : mt(std::random_device{}()) {} + Rng(Rng const&) = delete; + void operator=(Rng const&) = delete; +}; + +#endif /* RNG_HPP */ diff --git a/docs/static/examples/src/astar/c++/sketch.cpp b/docs/static/examples/src/astar/c++/sketch.cpp new file mode 100644 index 0000000..5fc504f --- /dev/null +++ b/docs/static/examples/src/astar/c++/sketch.cpp @@ -0,0 +1,82 @@ +#include + +#include "astar.hpp" +#include "p8g.hpp" +#include "rng.hpp" + +using namespace p8g; + +const int rows = 100, cols = 100; +float w, h, wh, hh; +std::vector collisionGrid(cols * rows); +int gx = cols - 1, gy = rows - 1; +AStar* astar; +std::vector> path; + +int coordsToIndex(int x, int y) { + return y * cols + x; +} + +void initCollisionGrid() { + Rng& rng = Rng::getInstance(); + for (int y = 0; y < rows; y++) { + for (int x = 0; x < cols; x++) { + float r = rng.random(0.0f, 1.0f); + collisionGrid[coordsToIndex(x, y)] = r < 0.25f; + } + } + // ensure there is no collision at the start point + collisionGrid[coordsToIndex(cols / 2, rows / 2)] = false; +} + +void initAStar() { + delete astar; + astar = new AStar(collisionGrid, cols, rows, true); + path = astar->findPath(cols / 2, rows / 2, gx, gy); +} + +void p8g::draw() { + background(255.f); + for (int y = 0; y < rows; y++) { + for (int x = 0; x < cols; x++) { + if (collisionGrid[coordsToIndex(x, y)]) { + stroke(0.f); + strokeWeight(w); + point(x * w + w / 2.0f, y * h + h / 2.0f); + } + } + } + if (path.size() > 1) { + for (int i = 1; i < path.size(); i++) { + stroke(255.f, 0.f, 255.f); + strokeWeight(wh); + line( + path[i - 1].first * w + wh, + path[i - 1].second * h + hh, + path[i].first * w + wh, + path[i].second * h + hh + ); + } + } +} + +void p8g::mouseMoved() { + int prevGx = gx, prevGy = gy; + gx = glm::clamp(glm::min(mouseX, (float) width) / w, 0, cols - 1); + gy = glm::clamp(glm::min(mouseY, (float) height) / h, 0, rows - 1); + if (gx != prevGx || gy != prevGy) { + initAStar(); + } +} + +int main() { + const int WIDTH = 512; + const int HEIGHT = 512; + w = (float) WIDTH / cols; + h = (float) HEIGHT / rows; + wh = w / 2.0f; + hh = h / 2.0f; + initCollisionGrid(); + initAStar(); + run(WIDTH, HEIGHT, "A*"); +} \ No newline at end of file