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85 lines
2.9 KiB
85 lines
2.9 KiB
# |
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# Makefile to use with emscripten |
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# See https://emscripten.org/docs/getting_started/downloads.html |
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# for installation instructions. |
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# |
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# This Makefile assumes you have loaded emscripten's environment. |
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# (On Windows, you may need to execute emsdk_env.bat or encmdprompt.bat ahead) |
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# |
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# Running `make` will produce three files: |
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# - example_emscripten.html |
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# - example_emscripten.js |
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# - example_emscripten.wasm |
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# |
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# All three are needed to run the demo. |
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CC = emcc |
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CXX = em++ |
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EXE = example_emscripten.html |
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IMGUI_DIR = ../.. |
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SOURCES = main.cpp |
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SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui_draw.cpp $(IMGUI_DIR)/imgui_widgets.cpp |
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SOURCES += $(IMGUI_DIR)/backends/imgui_impl_sdl.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp |
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OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES)))) |
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UNAME_S := $(shell uname -s) |
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##--------------------------------------------------------------------- |
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## EMSCRIPTEN OPTIONS |
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##--------------------------------------------------------------------- |
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EMS += -s USE_SDL=2 -s WASM=1 |
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EMS += -s ALLOW_MEMORY_GROWTH=1 |
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EMS += -s DISABLE_EXCEPTION_CATCHING=1 -s NO_EXIT_RUNTIME=0 |
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EMS += -s ASSERTIONS=1 |
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# Uncomment next line to fix possible rendering bugs with Emscripten version older then 1.39.0 (https://github.com/ocornut/imgui/issues/2877) |
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#EMS += -s BINARYEN_TRAP_MODE=clamp |
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#EMS += -s SAFE_HEAP=1 ## Adds overhead |
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# Emscripten allows preloading a file or folder to be accessible at runtime. |
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# The Makefile for this example project suggests embedding the misc/fonts/ folder into our application, it will then be accessible as "/fonts" |
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# See documentation for more details: https://emscripten.org/docs/porting/files/packaging_files.html |
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# (Default value is 0. Set to 1 to enable file-system and include the misc/fonts/ folder as part of the build.) |
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USE_FILE_SYSTEM ?= 0 |
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ifeq ($(USE_FILE_SYSTEM), 0) |
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EMS += -s NO_FILESYSTEM=1 -DIMGUI_DISABLE_FILE_FUNCTIONS |
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endif |
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ifeq ($(USE_FILE_SYSTEM), 1) |
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LDFLAGS += --no-heap-copy --preload-file ../../misc/fonts@/fonts |
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endif |
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##--------------------------------------------------------------------- |
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## FINAL BUILD FLAGS |
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##--------------------------------------------------------------------- |
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CPPFLAGS = -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends |
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#CPPFLAGS += -g |
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CPPFLAGS += -Wall -Wformat -Os |
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CPPFLAGS += $(EMS) |
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LIBS += $(EMS) |
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LDFLAGS += --shell-file shell_minimal.html |
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##--------------------------------------------------------------------- |
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## BUILD RULES |
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##--------------------------------------------------------------------- |
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%.o:%.cpp |
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$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $< |
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%.o:$(IMGUI_DIR)/%.cpp |
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$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $< |
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%.o:$(IMGUI_DIR)/backends/%.cpp |
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$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $< |
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%.o:../libs/gl3w/GL/%.c |
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$(CC) $(CPPFLAGS) $(CFLAGS) -c -o $@ $< |
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all: $(EXE) |
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@echo Build complete for $(EXE) |
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$(EXE): $(OBJS) |
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$(CXX) -o $@ $^ $(LIBS) $(LDFLAGS) |
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clean: |
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rm -f $(EXE) $(OBJS) *.js *.wasm *.wasm.pre
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