Backends: OpenGL3: Add compatibility of GL_VERSION for GL 2.x #3530
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GL_MAJOR_VERSION and GL_MINOR_VERSION are available on GL 3.0 and above. So we have to parse GL_VERSION under GL 2.x
ocornut
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GL_MAJOR_VERSION and GL_MINOR_VERSION are available on GL 3.0 and above. So we have to parse GL_VERSION under GL 2.x
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Merged with minor changes (using sscanf since it's already used in this file). Thank you ! |
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Issue reintroduced in 459de65. |
grauw
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GL_MAJOR_VERSION and GL_MINOR_VERSION are available on GL 3.0 and above. So we have to parse GL_VERSION under GL 2.x Regressed since 459de65 See ocornut#3530
grauw
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GL_MAJOR_VERSION and GL_MINOR_VERSION are available on GL 3.0 and above. So we have to parse GL_VERSION under GL 2.x Reference https://www.khronos.org/opengl/wiki/OpenGL_Context#Context_information_queries See ocornut/imgui#3530
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…t#6154) GL_MAJOR_VERSION and GL_MINOR_VERSION are available on GL 3.0 and above. So we have to parse GL_VERSION under GL 2.x Reference https://www.khronos.org/opengl/wiki/OpenGL_Context#Context_information_queries Regressed since 459de65 See ocornut#3530
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If we use imgui_impl_opengl3 as backend in desktop GL 2.x, the g_GlVersion may be initialized with weird numbers and maybe pass the checking like (g_GlVersion >= 330)
GL_MAJOR_VERSION and GL_MINOR_VERSION are available on GL 3.0 and above. So we have to parse GL_VERSION under GL 2.x
reference: https://www.khronos.org/opengl/wiki/OpenGL_Context#Context_information_queries