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Examples: OpenGL3: More explicit testing for == GL_UPPER_LEFT in case glGetIntegerv(GL_CLIP_ORIGIN is not honored properly. (#2186, #2195) Fix f52f0a5277

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omar 2018-11-21 18:24:24 +01:00
parent cc4b1f9e47
commit be66f94639
1 changed files with 3 additions and 2 deletions
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examples/imgui_impl_opengl3.cpp
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@ -165,8 +165,9 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
bool clip_origin_lower_left = true;
#ifdef GL_CLIP_ORIGIN
GLenum last_clip_origin; glGetIntegerv(GL_CLIP_ORIGIN, (GLint*)&last_clip_origin); // Support for GL 4.5's glClipControl(GL_UPPER_LEFT)
clip_origin_lower_left = (last_clip_origin == GL_LOWER_LEFT);
GLenum last_clip_origin = 0; glGetIntegerv(GL_CLIP_ORIGIN, (GLint*)&last_clip_origin); // Support for GL 4.5's glClipControl(GL_UPPER_LEFT)
if (last_clip_origin == GL_UPPER_LEFT)
clip_origin_lower_left = false;
#endif
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, polygon fill