[Mesa-dev] GL_AMD_performance_monitor v3

[Samuel Pitoiset]

Hello,

This is the third version of GL_AMD_performance_monitor.

V2 (global changes):
 - Fix radeon as pinpointed by Marek
 - Implement pipe_driver_query_group_info for svga, radeon and
   freedreno

V3 (global changes):
 - Re-organize the series according to hints of Ilia Mirkin
 - Document pipe_driver_query_group_info
 - Re-order pipe_numeric_type_union to avoid bad initializers
 - Add pipe_driver_query_type enum
 - Only enable AMD_performance_monitor if the driver implements
 pipe_driver_query_info and pipe_driver_query_group_info

GL_AMD_performance_monitor is now available for nvc0, svga,
freedreno and radeon.

Thanks in advance for your feedbacks.