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Backends: OpenGL3: Backup and restore GL_PIXEL_UNPACK_BUFFER. (#7253)
Amended with (bd->GlVersion >= 210) checks.
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@ -191,6 +191,11 @@
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#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_SAMPLER
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#endif
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// Desktop GL and GL ES 3.0+ have glBindBuffer() with GL_PIXEL_UNPACK_BUFFER target.
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#if !defined(IMGUI_IMPL_OPENGL_ES2)
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#define IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
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#endif
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// Desktop GL 3.1+ has GL_PRIMITIVE_RESTART state
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#if !defined(IMGUI_IMPL_OPENGL_ES2) && !defined(IMGUI_IMPL_OPENGL_ES3) && defined(GL_VERSION_3_1)
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#define IMGUI_IMPL_OPENGL_MAY_HAVE_PRIMITIVE_RESTART
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@ -747,6 +752,10 @@ bool ImGui_ImplOpenGL3_CreateDeviceObjects()
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GLint last_texture, last_array_buffer;
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glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
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#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
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GLint last_pixel_unpack_buffer;
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if (bd->GlVersion >= 210) { glGetIntegerv(GL_PIXEL_UNPACK_BUFFER_BINDING, &last_pixel_unpack_buffer); glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0); }
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#endif
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#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
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GLint last_vertex_array;
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glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
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@ -920,6 +929,9 @@ bool ImGui_ImplOpenGL3_CreateDeviceObjects()
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// Restore modified GL state
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glBindTexture(GL_TEXTURE_2D, last_texture);
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glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
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#ifdef IMGUI_IMPL_OPENGL_MAY_HAVE_BIND_BUFFER_PIXEL_UNPACK
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if (bd->GlVersion >= 210) { glBindBuffer(GL_PIXEL_UNPACK_BUFFER, last_pixel_unpack_buffer); }
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#endif
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#ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
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glBindVertexArray(last_vertex_array);
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#endif
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@ -260,6 +260,8 @@ typedef khronos_intptr_t GLintptr;
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#define GL_ARRAY_BUFFER_BINDING 0x8894
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#define GL_ELEMENT_ARRAY_BUFFER_BINDING 0x8895
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#define GL_STREAM_DRAW 0x88E0
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#define GL_PIXEL_UNPACK_BUFFER 0x88EC
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#define GL_PIXEL_UNPACK_BUFFER_BINDING 0x88EF
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typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
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typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers);
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typedef void (APIENTRYP PFNGLGENBUFFERSPROC) (GLsizei n, GLuint *buffers);
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@ -64,6 +64,7 @@ Other changes:
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- Backends: WebGPU: Filling all WGPUDepthStencilState fields explicitly as a recent Dawn
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update stopped setting default values. (#7232) [@GrigoryGraborenko]
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- Backends: WebGPU: Fixed pipeline layout leak. (#7245) [@rajveermalviya]
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- Backends: OpenGL3: Backup and restore GL_PIXEL_UNPACK_BUFFER. (#7253)
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-----------------------------------------------------------------------
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