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Backends: OpenGL3: Support older 2.x series of glbinding as loader for OpenGL3 (#3061)

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This removes the unversioned definition IMGUI_IMPL_OPENGL_LOADER_GLBINDING in favor of two versioned ones to choose explicitly.
References: #2870, 5e2329b98e
This commit is contained in:
David Kalnischkies
2020-02-20 15:49:15 +01:00
committed by omar
parent 4986dba270
commit ac4262ad01
6 changed files with 47 additions and 16 deletions
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9
examples/imgui_impl_opengl3.h
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@ -46,7 +46,8 @@ IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyDeviceObjects();
#if !defined(IMGUI_IMPL_OPENGL_LOADER_GL3W) \
&& !defined(IMGUI_IMPL_OPENGL_LOADER_GLEW) \
&& !defined(IMGUI_IMPL_OPENGL_LOADER_GLAD) \
&& !defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING) \
&& !defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING2) \
&& !defined(IMGUI_IMPL_OPENGL_LOADER_GLBINDING3) \
&& !defined(IMGUI_IMPL_OPENGL_LOADER_CUSTOM)
#if defined(__has_include)
#if __has_include(<GL/glew.h>)
@ -55,8 +56,10 @@ IMGUI_IMPL_API void ImGui_ImplOpenGL3_DestroyDeviceObjects();
#define IMGUI_IMPL_OPENGL_LOADER_GLAD
#elif __has_include(<GL/gl3w.h>)
#define IMGUI_IMPL_OPENGL_LOADER_GL3W
#elif __has_include(<glbinding/gl/gl.h>)
#define IMGUI_IMPL_OPENGL_LOADER_GLBINDING
#elif __has_include(<glbinding/glbinding.h>)
#define IMGUI_IMPL_OPENGL_LOADER_GLBINDING3
#elif __has_include(<glbinding/Binding.h>)
#define IMGUI_IMPL_OPENGL_LOADER_GLBINDING2
#else
#error "Cannot detect OpenGL loader!"
#endif