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Backends: OpenGL3: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" and variants, fixing regression on distros missing a symlink. (#6983)

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Amend 0f50b52da
This commit is contained in:
ocornut 2024-01-09 23:26:05 +01:00
parent 69bf3291df
commit a3eea8a75a
3 changed files with 8 additions and 1 deletions
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3
backends/imgui_impl_opengl3.cpp
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@ -22,7 +22,8 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2023-11-08: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" instead of "libGL.so.1", accomodating for NetBSD systems having only "libGL.so.3" available. (#6983)
// 2024-01-09: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" and variants, fixing regression on distros missing a symlink.
// 2023-11-08: OpenGL: Update GL3W based imgui_impl_opengl3_loader.h to load "libGL.so" instead of "libGL.so.1", accommodating for NetBSD systems having only "libGL.so.3" available. (#6983)
// 2023-10-05: OpenGL: Rename symbols in our internal loader so that LTO compilation with another copy of gl3w is possible. (#6875, #6668, #4445)
// 2023-06-20: OpenGL: Fixed erroneous use glGetIntegerv(GL_CONTEXT_PROFILE_MASK) on contexts lower than 3.2. (#6539, #6333)
// 2023-05-09: OpenGL: Support for glBindSampler() backup/restore on ES3. (#6375)

4
backends/imgui_impl_opengl3_loader.h
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@ -668,6 +668,10 @@ static int open_libgl(void)
{
// While most systems use libGL.so.1, NetBSD seems to use that libGL.so.3. See https://github.com/ocornut/imgui/issues/6983
libgl = dlopen("libGL.so", RTLD_LAZY | RTLD_LOCAL);
if (!libgl)
libgl = dlopen("libGL.so.1", RTLD_LAZY | RTLD_LOCAL);
if (!libgl)
libgl = dlopen("libGL.so.3", RTLD_LAZY | RTLD_LOCAL);
if (!libgl)
return GL3W_ERROR_LIBRARY_OPEN;
*(void **)(&glx_get_proc_address) = dlsym(libgl, "glXGetProcAddressARB");

2
docs/CHANGELOG.txt
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@ -101,6 +101,8 @@ Other changes:
register canvas selector and auto-resize GLFW window. (#6751) [@Traveller23, @ypujante]
- Backends: GLFW: Fixed Windows specific hooks to use Unicode version of WndProc even when
compiling in MBCS mode. (#7174) [@kimidaisuki22]
- Backends: OpenGL3: Update GL3W based imgui_impl_opengl3_loader.h to load libGL.so variants in
case of missing symlink. Fix 1.90 regression for some distros. (#6983)
- Backends: Vulkan: Fixed mismatching allocator passed to vkCreateCommandPool() vs
vkDestroyCommandPool(). (#7075) [@FoonTheRaccoon]
- Backends: Vulkan: Added MinAllocationSize field in ImGui_ImplVulkan_InitInfo to workaround zealous