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a41e2d97f9
Calling OpenGL from different threads can have bad consequences if not carefully reviewed. It's not generally supported. In my case, I was debugging a crash in glDeleteTextures from OPENGL32.DLL, where I asked qemu for gl=es, and thus ANGLE implementation was expected. libepoxy did resolution of the global pointer for glGenTexture to the GLES version from the main thread. But it resolved glDeleteTextures to the GL version, because it was done from a different thread without correct context. Oops. Let's stick to the main thread for GL calls by using a BH. Note: I didn't use atomics for reset_finished check, assuming the BQL will provide enough of sync, but I might be wrong. Acked-by: Dongwon Kim <dongwon.kim@intel.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20230726173929.690601-3-marcandre.lureau@redhat.com> |
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