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Change: Do not disallow persistent buffer mapping on AMD GPUs, as it is actually faster.

This commit is contained in:
Milek7 2021-03-20 00:08:03 +01:00 committed by Charles Pigott
parent bcaa367b68
commit 7a886cb4d4
1 changed files with 0 additions and 10 deletions
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10
src/video/opengl.cpp
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@ -13,8 +13,6 @@
/* Define to disable buffer syncing. Will increase max fast forward FPS but produces artifacts. Mainly useful for performance testing. */
// #define NO_GL_BUFFER_SYNC
/* Define to enable persistent buffer mapping on AMD GPUs. */
// #define GL_MAP_PERSISTENT_AMD
/* Define to allow software rendering backends. */
// #define GL_ALLOW_SOFTWARE_RENDERER
@ -577,14 +575,6 @@ const char *OpenGLBackend::Init()
this->persistent_mapping_supported = this->persistent_mapping_supported && (IsOpenGLVersionAtLeast(3, 2) || IsOpenGLExtensionSupported("GL_ARB_sync"));
#endif
#ifndef GL_MAP_PERSISTENT_AMD
if (this->persistent_mapping_supported && (strstr(vend, "AMD") != nullptr || strstr(renderer, "Radeon") != nullptr)) {
/* AMD GPUs seem to perform badly with persistent buffer mapping, disable it for them. */
DEBUG(driver, 3, "OpenGL: Detected AMD GPU, not using persistent buffer mapping due to performance problems");
this->persistent_mapping_supported = false;
}
#endif
if (this->persistent_mapping_supported && !BindPersistentBufferExtensions()) {
DEBUG(driver, 1, "OpenGL claims to support persistent buffer mapping but doesn't export all functions, not using persistent mapping.");
this->persistent_mapping_supported = false;