Mesa (mesa_7_5_branch): util: added util_same_surface() helper function
Brian Paul
brianp at kemper.freedesktop.org
Thu Aug 6 15:50:15 UTC 2009
Module: Mesa
Branch: mesa_7_5_branch
Commit: ffb1f9bded52aa9f53ed179f91186c9e8c59b8c8
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=ffb1f9bded52aa9f53ed179f91186c9e8c59b8c8
Author: Brian Paul <brianp at vmware.com>
Date: Thu Aug 6 09:02:05 2009 -0600
util: added util_same_surface() helper function
---
src/gallium/auxiliary/util/u_surface.h | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/src/gallium/auxiliary/util/u_surface.h b/src/gallium/auxiliary/util/u_surface.h
index a5b73cf..ce84ed7 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,
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