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Backends: OpenGL3: Properly restoring "no shader program bound". (#6267, #6220, #6224)

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ocornut
2023-03-23 13:27:29 +01:00
parent 821814b450
commit 7dcf129b3b
2 changed files with 4 additions and 1 deletions
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3
backends/imgui_impl_opengl3.cpp
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@ -14,6 +14,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2023-03-23: OpenGL: Properly restoring "no shader program bound" if it was the case prior to running the rendering function. (#6267, #6220, #6224)
// 2023-03-15: OpenGL: Fixed GL loader crash when GL_VERSION returns NULL. (#6154, #4445, #3530)
// 2023-03-06: OpenGL: Fixed restoration of a potentially deleted OpenGL program, by calling glIsProgram(). (#6220, #6224)
// 2022-11-09: OpenGL: Reverted use of glBufferSubData(), too many corruptions issues + old issues seemingly can't be reproed with Intel drivers nowadays (revert 2021-12-15 and 2022-05-23 changes).
@ -579,7 +580,7 @@ void ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
// Restore modified GL state
// This "glIsProgram()" check is required because if the program is "pending deletion" at the time of binding backup, it will have been deleted by now and will cause an OpenGL error. See #6220.
if (glIsProgram(last_program)) glUseProgram(last_program);
if (last_program == 0 || glIsProgram(last_program)) glUseProgram(last_program);
glBindTexture(GL_TEXTURE_2D, last_texture);
#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
if (bd->GlVersion >= 330)