st/mesa: use shader stencil export to accelerate shader drawpixels.

If the pipe driver has shader stencil export we can accelerate DrawPixels
using it. It tries to pick an S8 texture and works its way to X24S8 and S8X24
if that isn't supported.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_texture.h b/src/mesa/state_tracker/st_texture.h
index ed5d271597..c78901c036 100644
--- a/src/mesa/state_tracker/st_texture.h
+++ b/src/mesa/state_tracker/st_texture.h
@@ -134,6 +134,20 @@ st_create_texture_sampler_view(struct pipe_context *pipe,
 
 
 static INLINE struct pipe_sampler_view *
+st_create_texture_sampler_view_format(struct pipe_context *pipe,
+                                      struct pipe_resource *texture,
+                                      enum pipe_format format)
+{
+   struct pipe_sampler_view templ;
+
+   u_sampler_view_default_template(&templ,
+                                   texture,
+                                   format);
+
+   return pipe->create_sampler_view(pipe, texture, &templ);
+}
+
+static INLINE struct pipe_sampler_view *
 st_get_texture_sampler_view(struct st_texture_object *stObj,
                             struct pipe_context *pipe)