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@ -13,6 +13,7 @@
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// CHANGELOG
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// (minor and older changes stripped away, please see git history for details)
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// 2021-04-06: OpenGL: Don't try to read GL_CLIP_ORIGIN unless we're OpenGL 4.5 or greater.
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// 2021-02-18: OpenGL: Change blending equation to preserve alpha in output buffer.
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// 2021-01-03: OpenGL: Backup, setup and restore GL_STENCIL_TEST state.
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// 2020-10-23: OpenGL: Backup, setup and restore GL_PRIMITIVE_RESTART state.
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@ -262,11 +263,14 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
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#endif
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// Support for GL 4.5 rarely used glClipControl(GL_UPPER_LEFT)
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#if defined(GL_CLIP_ORIGIN) && !defined(__APPLE__)
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#if defined(GL_CLIP_ORIGIN)
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bool clip_origin_lower_left = true;
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GLenum current_clip_origin = 0; glGetIntegerv(GL_CLIP_ORIGIN, (GLint*)¤t_clip_origin);
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if (current_clip_origin == GL_UPPER_LEFT)
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clip_origin_lower_left = false;
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if (g_GlVersion >= 450)
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{
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GLenum current_clip_origin = 0; glGetIntegerv(GL_CLIP_ORIGIN, (GLint*)¤t_clip_origin);
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if (current_clip_origin == GL_UPPER_LEFT)
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clip_origin_lower_left = false;
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}
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#endif
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// Setup viewport, orthographic projection matrix
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@ -276,7 +280,7 @@ static void ImGui_ImplOpenGL3_SetupRenderState(ImDrawData* draw_data, int fb_wid
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float R = draw_data->DisplayPos.x + draw_data->DisplaySize.x;
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float T = draw_data->DisplayPos.y;
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float B = draw_data->DisplayPos.y + draw_data->DisplaySize.y;
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#if defined(GL_CLIP_ORIGIN) && !defined(__APPLE__)
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#if defined(GL_CLIP_ORIGIN)
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if (!clip_origin_lower_left) { float tmp = T; T = B; B = tmp; } // Swap top and bottom if origin is upper left
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#endif
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const float ortho_projection[4][4] =
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@ -59,6 +59,7 @@ Other Changes:
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workaround/fix state restoring issues. Unknown exactly why so, but bit of a cargo-cult fix. (#3857)
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- Backends: Vulkan: Fix mapped memory Vulkan validation error when buffer sizes are not multiple of
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VkPhysicalDeviceLimits::nonCoherentAtomSize. (#3957) [@AgentX1994]
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- Backends: OpenGL3: Don't try to read GL_CLIP_ORIGIN unless we're OpenGL 4.5. (#3998, #2366, #2186) [@s7jones]
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- Examples: Add OpenGL ES 2.0 support to modern GL examples. (#2837, #3951) [@lethal-guitar, @hinxx]
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- Examples: Vulkan: Rebuild swapchain on VK_SUBOPTIMAL_KHR. (#3881)
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- Examples: SDL2: Link with shell32.lib required by SDL2main.lib since SDL 2.0.12. [#3988]
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