Get real GPU memory values on NV+Linux and OS X

third_party/mesa/MesaLib/include/GL/glext.h

Index: third_party/mesa/MesaLib/include/GL/glext.h
diff --git a/third_party/mesa/MesaLib/include/GL/glext.h b/third_party/mesa/MesaLib/include/GL/glext.h
index 77335bd2c75a56b7f6ace1805411126552ea2712..653e4fd18fd2649c06d18c6e33a30af1f66ed1a4 100644
--- a/third_party/mesa/MesaLib/include/GL/glext.h
+++ b/third_party/mesa/MesaLib/include/GL/glext.h
@@ -5019,6 +5019,13 @@ extern "C" {
 #ifndef GL_AMD_transform_feedback3_lines_triangles
 #endif
 
+#ifndef GL_NVX_gpu_memory_info

[Ken Russell (switch to Gerrit), 2012/09/20 06:47:23]

Is this really where these #defines need to go to get them picked up by the
command buffer service code? Regardless, I think it would be a good idea to add
them to third_party/khronos/GLES2/gl2ext.h.

[ccameron, 2012/09/20 21:22:42]

I tried to put them in gl2ext.h, but pulling that header didn't work from inside
gl_context_glx.cc (whereas glext.h was already included).

I've added them to gl2ext.h as well -- I feel a bit iffy about putting it in
gl2ext.h because this is not a ES extension (whereas all of the other extensions
have extension #s for both OpenGL and OpenGL ES).  That said, having these
constants available has proved helpful in local debugging through the command
buffer.

+#define GL_GPU_MEMORY_INFO_DEDICATED_VIDMEM_NVX 0x9047
+#define GL_GPU_MEMORY_INFO_TOTAL_AVAILABLE_MEMORY_NVX 0x9048
+#define GL_GPU_MEMORY_INFO_CURRENT_AVAILABLE_VIDMEM_NVX 0x9049
+#define GL_GPU_MEMORY_INFO_EVICTION_COUNT_NVX 0x904A
+#define GL_GPU_MEMORY_INFO_EVICTED_MEMORY_NVX 0x904B
+#endif
 
 /*************************************************************/