Merge commit 'ae51a422787bc3b720ff1748c0219c8f33363427'
This commit is contained in:
91
deps/imgui/examples/example_glfw_opengl3/Makefile.emscripten
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91
deps/imgui/examples/example_glfw_opengl3/Makefile.emscripten
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#
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# Makefile to use with GLFW+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 -f Makefile.emscripten` will produce three files:
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# - web/index.html
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# - web/index.js
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# - web/index.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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WEB_DIR = web
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EXE = $(WEB_DIR)/index.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_tables.cpp $(IMGUI_DIR)/imgui_widgets.cpp
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SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.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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CPPFLAGS =
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LDFLAGS =
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EMS =
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##---------------------------------------------------------------------
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## EMSCRIPTEN OPTIONS
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##---------------------------------------------------------------------
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# ("EMS" options gets added to both CPPFLAGS and LDFLAGS, whereas some options are for linker only)
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EMS += -s DISABLE_EXCEPTION_CATCHING=1
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LDFLAGS += -s USE_GLFW=3 -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s NO_EXIT_RUNTIME=0 -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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LDFLAGS += -s NO_FILESYSTEM=1
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CPPFLAGS += -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 $(EMS)
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LDFLAGS += --shell-file ../libs/emscripten/shell_minimal.html
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LDFLAGS += $(EMS)
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##---------------------------------------------------------------------
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## BUILD RULES
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##---------------------------------------------------------------------
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%.o:%.cpp
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$(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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all: $(EXE)
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@echo Build complete for $(EXE)
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$(WEB_DIR):
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mkdir $@
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serve: all
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python3 -m http.server -d $(WEB_DIR)
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$(EXE): $(OBJS) $(WEB_DIR)
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$(CXX) -o $@ $(OBJS) $(LDFLAGS)
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clean:
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rm -rf $(OBJS) $(WEB_DIR)
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@ -5,4 +5,4 @@
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@set SOURCES=main.cpp ..\..\backends\imgui_impl_glfw.cpp ..\..\backends\imgui_impl_opengl3.cpp ..\..\imgui*.cpp
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@set LIBS=/LIBPATH:..\libs\glfw\lib-vc2010-32 glfw3.lib opengl32.lib gdi32.lib shell32.lib
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mkdir %OUT_DIR%
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cl /nologo /Zi /MD %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS%
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cl /nologo /Zi /MD /utf-8 %INCLUDES% %SOURCES% /Fe%OUT_DIR%/%OUT_EXE%.exe /Fo%OUT_DIR%/ /link %LIBS%
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@ -91,6 +91,7 @@
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<WarningLevel>Level4</WarningLevel>
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<Optimization>Disabled</Optimization>
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<AdditionalIncludeDirectories>..\..;..\..\backends;..\libs\glfw\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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@ -105,6 +106,7 @@
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<WarningLevel>Level4</WarningLevel>
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<Optimization>Disabled</Optimization>
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<AdditionalIncludeDirectories>..\..;..\..\backends;..\libs\glfw\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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@ -122,6 +124,7 @@
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<AdditionalIncludeDirectories>..\..;..\..\backends;..\libs\glfw\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<BufferSecurityCheck>false</BufferSecurityCheck>
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<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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@ -142,6 +145,7 @@
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<AdditionalIncludeDirectories>..\..;..\..\backends;..\libs\glfw\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
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<BufferSecurityCheck>false</BufferSecurityCheck>
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<AdditionalOptions>/utf-8 %(AdditionalOptions)</AdditionalOptions>
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</ClCompile>
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<Link>
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<GenerateDebugInformation>true</GenerateDebugInformation>
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@ -173,10 +177,11 @@
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<ClInclude Include="..\..\backends\imgui_impl_opengl3_loader.h" />
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</ItemGroup>
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<ItemGroup>
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<None Include="..\..\misc\debuggers\imgui.natstepfilter" />
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<None Include="..\..\misc\debuggers\imgui.natvis" />
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<None Include="..\README.txt" />
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</ItemGroup>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
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<ImportGroup Label="ExtensionTargets">
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</ImportGroup>
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</Project>
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</Project>
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@ -58,7 +58,10 @@
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<ItemGroup>
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<None Include="..\README.txt" />
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<None Include="..\..\misc\debuggers\imgui.natvis">
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<Filter>sources</Filter>
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<Filter>imgui</Filter>
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</None>
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<None Include="..\..\misc\debuggers\imgui.natstepfilter">
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<Filter>imgui</Filter>
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</None>
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</ItemGroup>
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</Project>
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</Project>
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@ -1,12 +1,17 @@
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// Dear ImGui: standalone example application for GLFW + OpenGL 3, using programmable pipeline
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// (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan/Metal graphics context creation, etc.)
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// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
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// Read online: https://github.com/ocornut/imgui/tree/master/docs
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// Learn about Dear ImGui:
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// - FAQ https://dearimgui.com/faq
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// - Getting Started https://dearimgui.com/getting-started
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// - Documentation https://dearimgui.com/docs (same as your local docs/ folder).
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// - Introduction, links and more at the top of imgui.cpp
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#include "imgui.h"
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#include "imgui_impl_glfw.h"
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#include "imgui_impl_opengl3.h"
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#include <stdio.h>
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#define GL_SILENCE_DEPRECATION
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#if defined(IMGUI_IMPL_OPENGL_ES2)
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#include <GLES2/gl2.h>
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#endif
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@ -19,14 +24,19 @@
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#pragma comment(lib, "legacy_stdio_definitions")
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#endif
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// This example can also compile and run with Emscripten! See 'Makefile.emscripten' for details.
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#ifdef __EMSCRIPTEN__
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#include "../libs/emscripten/emscripten_mainloop_stub.h"
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#endif
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static void glfw_error_callback(int error, const char* description)
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{
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fprintf(stderr, "Glfw Error %d: %s\n", error, description);
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fprintf(stderr, "GLFW Error %d: %s\n", error, description);
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}
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// Main code
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int main(int, char**)
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{
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// Setup window
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glfwSetErrorCallback(glfw_error_callback);
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if (!glfwInit())
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return 1;
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@ -55,8 +65,8 @@ int main(int, char**)
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#endif
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// Create window with graphics context
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GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+OpenGL3 example", NULL, NULL);
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if (window == NULL)
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GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+OpenGL3 example", nullptr, nullptr);
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if (window == nullptr)
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return 1;
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glfwMakeContextCurrent(window);
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glfwSwapInterval(1); // Enable vsync
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@ -65,16 +75,16 @@ int main(int, char**)
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO(); (void)io;
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io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
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//io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
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io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking
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io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows
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io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
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io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
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io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking
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io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows
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//io.ConfigViewportsNoAutoMerge = true;
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//io.ConfigViewportsNoTaskBarIcon = true;
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// Setup Dear ImGui style
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ImGui::StyleColorsDark();
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//ImGui::StyleColorsClassic();
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//ImGui::StyleColorsLight();
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// When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
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ImGuiStyle& style = ImGui::GetStyle();
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@ -86,22 +96,27 @@ int main(int, char**)
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// Setup Platform/Renderer backends
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ImGui_ImplGlfw_InitForOpenGL(window, true);
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#ifdef __EMSCRIPTEN__
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ImGui_ImplGlfw_InstallEmscriptenCanvasResizeCallback("#canvas");
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#endif
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ImGui_ImplOpenGL3_Init(glsl_version);
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// Load Fonts
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// - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them.
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// - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple.
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// - If the file cannot be loaded, the function will return NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
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// - If the file cannot be loaded, the function will return a nullptr. Please handle those errors in your application (e.g. use an assertion, or display an error and quit).
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// - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call.
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// - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype for higher quality font rendering.
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// - Read 'docs/FONTS.md' for more instructions and details.
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// - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ !
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// - Our Emscripten build process allows embedding fonts to be accessible at runtime from the "fonts/" folder. See Makefile.emscripten for details.
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//io.Fonts->AddFontDefault();
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//io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\segoeui.ttf", 18.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f);
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//io.Fonts->AddFontFromFileTTF("../../misc/fonts/ProggyTiny.ttf", 10.0f);
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//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());
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//IM_ASSERT(font != NULL);
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//ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, nullptr, io.Fonts->GetGlyphRangesJapanese());
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//IM_ASSERT(font != nullptr);
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// Our state
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bool show_demo_window = true;
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@ -109,12 +124,19 @@ int main(int, char**)
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ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);
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// Main loop
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#ifdef __EMSCRIPTEN__
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// For an Emscripten build we are disabling file-system access, so let's not attempt to do a fopen() of the imgui.ini file.
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// You may manually call LoadIniSettingsFromMemory() to load settings from your own storage.
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io.IniFilename = nullptr;
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EMSCRIPTEN_MAINLOOP_BEGIN
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#else
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while (!glfwWindowShouldClose(window))
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#endif
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{
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// Poll and handle events (inputs, window resize, etc.)
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// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
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// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
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// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
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// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
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// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
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// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
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glfwPollEvents();
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@ -127,7 +149,7 @@ int main(int, char**)
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if (show_demo_window)
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ImGui::ShowDemoWindow(&show_demo_window);
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// 2. Show a simple window that we create ourselves. We use a Begin/End pair to created a named window.
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// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
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{
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static float f = 0.0f;
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static int counter = 0;
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@ -146,7 +168,7 @@ int main(int, char**)
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ImGui::SameLine();
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ImGui::Text("counter = %d", counter);
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ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate);
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ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
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ImGui::End();
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}
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@ -168,7 +190,7 @@ int main(int, char**)
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glClearColor(clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w);
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glClear(GL_COLOR_BUFFER_BIT);
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ImGui_ImplOpenGL3_RenderDrawData(ImGui::GetDrawData());
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// Update and Render additional Platform Windows
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// (Platform functions may change the current OpenGL context, so we save/restore it to make it easier to paste this code elsewhere.
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// For this specific demo app we could also call glfwMakeContextCurrent(window) directly)
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@ -182,6 +204,9 @@ int main(int, char**)
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glfwSwapBuffers(window);
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}
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#ifdef __EMSCRIPTEN__
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EMSCRIPTEN_MAINLOOP_END;
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#endif
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// Cleanup
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ImGui_ImplOpenGL3_Shutdown();
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Block a user