u_surface.h revision cdc920a0 
1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.  All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sub license, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 **************************************************************************/
26
27
28#ifndef U_SURFACE_H
29#define U_SURFACE_H
30
31
32#include "pipe/p_compiler.h"
33#include "pipe/p_state.h"
34
35
36/**
37 * Are s1 and s2 the same surface?
38 * Surfaces are basically views into textures so check if the two surfaces
39 * name the same part of the same texture.
40 */
41static INLINE boolean
42util_same_surface(const struct pipe_surface *s1, const struct pipe_surface *s2)
43{
44   return (s1->texture == s2->texture &&
45           s1->face == s2->face &&
46           s1->level == s2->level &&
47           s1->zslice == s2->zslice);
48}
49
50
51
52
53extern boolean
54util_create_rgba_surface(struct pipe_screen *screen,
55                         uint width, uint height,
56                         struct pipe_texture **textureOut,
57                         struct pipe_surface **surfaceOut);
58
59
60extern void
61util_destroy_rgba_surface(struct pipe_texture *texture,
62                          struct pipe_surface *surface);
63
64
65extern boolean
66util_framebuffer_state_equal(const struct pipe_framebuffer_state *dst,
67                             const struct pipe_framebuffer_state *src);
68
69extern void
70util_copy_framebuffer_state(struct pipe_framebuffer_state *dst,
71                            const struct pipe_framebuffer_state *src);
72
73
74extern void
75util_unreference_framebuffer_state(struct pipe_framebuffer_state *fb);
76
77
78#endif /* U_SURFACE_H */
79