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85 lines
2.7 KiB
Makefile
85 lines
2.7 KiB
Makefile
#
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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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SOURCES = main.cpp
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SOURCES += ../imgui_impl_sdl.cpp ../imgui_impl_opengl3.cpp
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SOURCES += ../../imgui.cpp ../../imgui_demo.cpp ../../imgui_draw.cpp ../../imgui_widgets.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../ -I../../
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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 $@ $<
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%.o:../%.cpp
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$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c -o $@ $<
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%.o:../../%.cpp
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$(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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