gallium: extend resource_resolve to accommodate BlitFramebuffer

Resolve via glBlitFramebuffer allows resolving a sub-region of a
renderbuffer to a different location in any mipmap level of some
other texture, and, with a new extension, even scaling. Therefore,
location and size parameters are needed.

The mask parameter was added because resolving only depth or only
stencil of a combined buffer is possible as well.

Full information about the blit operation allows the drivers to
take the most efficient path they possibly can.

1 files changed, 3 insertions, 5 deletions

diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
index 3f6d90d1bf4..da3ee87515f 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -49,6 +49,7 @@ struct pipe_index_buffer;
 struct pipe_query;
 struct pipe_poly_stipple;
 struct pipe_rasterizer_state;
+struct pipe_resolve_info;
 struct pipe_resource;
 struct pipe_sampler_state;
 struct pipe_sampler_view;
@@ -268,13 +269,10 @@ struct pipe_context {
 
    /**
     * Resolve a multisampled resource into a non-multisampled one.
-    * Source and destination must have the same size and same format.
+    * Source and destination must be of the same format.
     */
    void (*resource_resolve)(struct pipe_context *pipe,
-                            struct pipe_resource *dst,
-                            unsigned dst_layer,
-                            struct pipe_resource *src,
-                            unsigned src_layer);
+                            const struct pipe_resolve_info *info);
 
    /*@}*/