draw: implement pipeline statistics in the draw module

This is a basic implementation of the pipeline statistics in the
draw module. The interface is similar to the stream output statistics
and also requires that the callers explicitly enable it.
Included is the implementation of the interface in llvmpipe and
softpipe. Only softpipe enables the pipeline statistics capability
though because llvmpipe is lacking gathering of the fragment shading
and rasterization statistics.

Signed-off-by: Zack Rusin <[email protected]>
Reviewed-by: Jose Fonseca <[email protected]>

1 files changed, 3 insertions, 0 deletions

diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index d78352ab630..431864ae087 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -92,6 +92,9 @@ struct softpipe_context {
    struct pipe_query_data_so_statistics so_stats;
    unsigned num_primitives_generated;
 
+   struct pipe_query_data_pipeline_statistics pipeline_statistics;
+   unsigned active_statistics_queries;
+
    unsigned num_samplers[PIPE_SHADER_TYPES];
    unsigned num_sampler_views[PIPE_SHADER_TYPES];