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Examples: Add OpenGL ES 2.0 support to modern GL examples. (#2837, #3951)

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This commit is contained in:
Nikolai Wuttke
2021-03-20 14:46:38 +01:00
committed by ocornut
parent 1dcd3a45cc
commit c6c15a44fa
5 changed files with 47 additions and 8 deletions
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13
examples/example_glfw_opengl3/Makefile
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@ -21,15 +21,19 @@ SOURCES += $(IMGUI_DIR)/imgui.cpp $(IMGUI_DIR)/imgui_demo.cpp $(IMGUI_DIR)/imgui
SOURCES += $(IMGUI_DIR)/backends/imgui_impl_glfw.cpp $(IMGUI_DIR)/backends/imgui_impl_opengl3.cpp
OBJS = $(addsuffix .o, $(basename $(notdir $(SOURCES))))
UNAME_S := $(shell uname -s)
LINUX_GL_LIBS = -lGL
CXXFLAGS = -I$(IMGUI_DIR) -I$(IMGUI_DIR)/backends
CXXFLAGS += -g -Wall -Wformat
LIBS =
##---------------------------------------------------------------------
## OPENGL LOADER
## OPENGL LOADER / OPENGL ES
##---------------------------------------------------------------------
## See below for OpenGL ES option (no loader required) - comment out
## the following if you want to use OpenGL ES instead of Desktop GL.
## Using OpenGL loader: gl3w [default]
SOURCES += ../libs/gl3w/GL/gl3w.c
CXXFLAGS += -I../libs/gl3w -DIMGUI_IMPL_OPENGL_LOADER_GL3W
@ -56,13 +60,18 @@ CXXFLAGS += -I../libs/gl3w -DIMGUI_IMPL_OPENGL_LOADER_GL3W
# CXXFLAGS += -DIMGUI_IMPL_OPENGL_LOADER_GLBINDING2
# LIBS += -lglbinding
## Using OpenGL ES, no loader required
## This assumes a GL ES library available in the system, e.g. libGLESv2.so
# CXXFLAGS += -DIMGUI_IMPL_OPENGL_ES2
# LINUX_GL_LIBS = -lGLESv2
##---------------------------------------------------------------------
## BUILD FLAGS PER PLATFORM
##---------------------------------------------------------------------
ifeq ($(UNAME_S), Linux) #LINUX
ECHO_MESSAGE = "Linux"
LIBS += -lGL `pkg-config --static --libs glfw3`
LIBS += $(LINUX_GL_LIBS) `pkg-config --static --libs glfw3`
CXXFLAGS += `pkg-config --cflags glfw3`
CFLAGS = $(CXXFLAGS)