From ffb1f9bded52aa9f53ed179f91186c9e8c59b8c8 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Thu, 6 Aug 2009 09:02:05 -0600 Subject: util: added util_same_surface() helper function --- src/gallium/auxiliary/util/u_surface.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'src') diff --git a/src/gallium/auxiliary/util/u_surface.h b/src/gallium/auxiliary/util/u_surface.h index a5b73cfc20..ce84ed7ad0 100644 --- a/src/gallium/auxiliary/util/u_surface.h +++ b/src/gallium/auxiliary/util/u_surface.h @@ -37,6 +37,23 @@ struct pipe_texture; struct pipe_surface; +/** + * Are s1 and s2 the same surface? + * Surfaces are basically views into textures so check if the two surfaces + * name the same part of the same texture. + */ +static INLINE boolean +util_same_surface(const struct pipe_surface *s1, const struct pipe_surface *s2) +{ + return (s1->texture == s2->texture && + s1->face == s2->face && + s1->level == s2->level && + s1->zslice == s2->zslice); +} + + + + extern boolean util_create_rgba_surface(struct pipe_screen *screen, uint width, uint height, -- cgit v1.2.3