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Merge branch 'master' into viewport
# Conflicts: # examples/example_glfw_opengl3/main.cpp # examples/imgui_impl_opengl3.cpp # imgui.cpp # imgui_internal.h
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@ -18,17 +18,35 @@ EXE = example_glfw_opengl3
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SOURCES = main.cpp
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SOURCES += ../imgui_impl_glfw.cpp ../imgui_impl_opengl3.cpp
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SOURCES += ../../imgui.cpp ../../imgui_demo.cpp ../../imgui_draw.cpp
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SOURCES += ../libs/gl3w/GL/gl3w.c
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OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
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UNAME_S := $(shell uname -s)
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##---------------------------------------------------------------------
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## OPENGL LOADER
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##---------------------------------------------------------------------
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## Using OpenGL loader: gl3w [default]
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SOURCES += ../libs/gl3w/GL/gl3w.c
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CXXFLAGS = -I../libs/gl3w
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## Using OpenGL loader: glew
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## (This assumes a system-wide installation)
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# CXXFLAGS = -lGLEW -DIMGUI_IMPL_OPENGL_LOADER_GLEW
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## Using OpenGL loader: glad
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## (You'll also need to change the rule at line ~77 of this Makefile to compile/link glad.c/.o)
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# SOURCES += ../libs/glad/src/glad.c
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# CXXFLAGS = -I../libs/glad/include -DIMGUI_IMPL_OPENGL_LOADER_GLAD
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##---------------------------------------------------------------------
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## BUILD FLAGS PER PLATFORM
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##---------------------------------------------------------------------
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ifeq ($(UNAME_S), Linux) #LINUX
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ECHO_MESSAGE = "Linux"
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LIBS = -lGL `pkg-config --static --libs glfw3`
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CXXFLAGS = -I../ -I../../ -I../libs/gl3w `pkg-config --cflags glfw3`
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CXXFLAGS += -I../ -I../../ `pkg-config --cflags glfw3`
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CXXFLAGS += -Wall -Wformat
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CFLAGS = $(CXXFLAGS)
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endif
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@ -39,7 +57,7 @@ ifeq ($(UNAME_S), Darwin) #APPLE
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#LIBS += -L/usr/local/lib -lglfw3
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LIBS += -L/usr/local/lib -lglfw
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CXXFLAGS = -I../ -I../../ -I../libs/gl3w -I/usr/local/include
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CXXFLAGS += -I../ -I../../ -I/usr/local/include
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CXXFLAGS += -Wall -Wformat
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CFLAGS = $(CXXFLAGS)
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endif
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@ -48,11 +66,14 @@ ifeq ($(findstring MINGW,$(UNAME_S)),MINGW)
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ECHO_MESSAGE = "Windows"
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LIBS = -lglfw3 -lgdi32 -lopengl32 -limm32
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CXXFLAGS = -I../ -I../../ -I../libs/gl3w `pkg-config --cflags glfw3`
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CXXFLAGS += -I../ -I../../ `pkg-config --cflags glfw3`
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CXXFLAGS += -Wall -Wformat
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CFLAGS = $(CXXFLAGS)
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endif
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##---------------------------------------------------------------------
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## BUILD RULES
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##---------------------------------------------------------------------
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%.o:%.cpp
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$(CXX) $(CXXFLAGS) -c -o $@ $<
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@ -64,6 +85,7 @@ endif
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$(CXX) $(CXXFLAGS) -c -o $@ $<
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%.o:../libs/gl3w/GL/%.c
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# %.o:../libs/glad/src/%.c
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$(CC) $(CFLAGS) -c -o $@ $<
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all: $(EXE)
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@ -1,17 +1,24 @@
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// ImGui - standalone example application for GLFW + OpenGL 3, using programmable pipeline
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// If you are new to ImGui, see examples/README.txt and documentation at the top of imgui.cpp.
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// (GLFW is a cross-platform general purpose library for handling windows, inputs, OpenGL/Vulkan graphics context creation, etc.)
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// (GL3W is a helper library to access OpenGL functions since there is no standard header to access modern OpenGL functions easily. Alternatives are GLEW, Glad, etc.)
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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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#include <GL/gl3w.h> // This example is using gl3w to access OpenGL functions. You may use another OpenGL loader/header such as: glew, glext, glad, glLoadGen, etc.
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//#include <glew.h>
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//#include <glext.h>
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//#include <glad/glad.h>
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// About OpenGL function loaders: modern OpenGL doesn't have a standard header file and requires individual function pointers to be loaded manually.
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// Helper libraries are often used for this purpose! Here we are supporting a few common ones: gl3w, glew, glad.
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// You may use another loader/header of your choice (glext, glLoadGen, etc.), or chose to manually implement your own.
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#if defined(IMGUI_IMPL_OPENGL_LOADER_GL3W)
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#include <GL/gl3w.h> // Initialize with gl3wInit()
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#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLEW)
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#include <GL/glew.h> // Initialize with glewInit()
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#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
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#include <glad/glad.h> // Initialize with gladLoadGL()
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#else
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#include IMGUI_IMPL_OPENGL_LOADER_CUSTOM
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#endif
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#include <GLFW/glfw3.h> // Include glfw3.h after our OpenGL definitions
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@ -50,7 +57,20 @@ int main(int, char**)
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return 1;
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glfwMakeContextCurrent(window);
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glfwSwapInterval(1); // Enable vsync
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gl3wInit();
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// Initialize OpenGL loader
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#if defined(IMGUI_IMPL_OPENGL_LOADER_GL3W)
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bool err = gl3wInit() != 0;
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#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLEW)
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bool err = glewInit() != GLEW_OK;
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#elif defined(IMGUI_IMPL_OPENGL_LOADER_GLAD)
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bool err = gladLoadGL() != 0;
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#endif
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if (err)
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{
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fprintf(stderr, "Failed to initialize OpenGL loader!\n");
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return 1;
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}
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// Setup Dear ImGui binding
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IMGUI_CHECKVERSION();
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@ -71,8 +91,8 @@ int main(int, char**)
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//ImGui::StyleColorsClassic();
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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 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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// - 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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// - Read 'misc/fonts/README.txt' for more instructions and details.
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@ -119,7 +139,7 @@ int main(int, char**)
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ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state
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ImGui::Checkbox("Another Window", &show_another_window);
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ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
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ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f
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ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color
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if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated)
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