Merge commit 'origin/master' into gallium-0.2
[mesa.git] / src / gallium / auxiliary / util / u_tile.h
1 /**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #ifndef P_TILE_H
29 #define P_TILE_H
30
31 #include "pipe/p_compiler.h"
32
33 struct pipe_surface;
34
35
36 /**
37 * Clip tile against surface dims.
38 * \return TRUE if tile is totally clipped, FALSE otherwise
39 */
40 static INLINE boolean
41 pipe_clip_tile(uint x, uint y, uint *w, uint *h, const struct pipe_surface *ps)
42 {
43 if (x >= ps->width)
44 return TRUE;
45 if (y >= ps->height)
46 return TRUE;
47 if (x + *w > ps->width)
48 *w = ps->width - x;
49 if (y + *h > ps->height)
50 *h = ps->height - y;
51 return FALSE;
52 }
53
54 #ifdef __cplusplus
55 extern "C" {
56 #endif
57
58 void
59 pipe_get_tile_raw(struct pipe_surface *ps,
60 uint x, uint y, uint w, uint h,
61 void *p, int dst_stride);
62
63 void
64 pipe_put_tile_raw(struct pipe_surface *ps,
65 uint x, uint y, uint w, uint h,
66 const void *p, int src_stride);
67
68
69 void
70 pipe_get_tile_rgba(struct pipe_surface *ps,
71 uint x, uint y, uint w, uint h,
72 float *p);
73
74 void
75 pipe_put_tile_rgba(struct pipe_surface *ps,
76 uint x, uint y, uint w, uint h,
77 const float *p);
78
79
80 void
81 pipe_get_tile_z(struct pipe_surface *ps,
82 uint x, uint y, uint w, uint h,
83 uint *z);
84
85 void
86 pipe_put_tile_z(struct pipe_surface *ps,
87 uint x, uint y, uint w, uint h,
88 const uint *z);
89
90 void
91 pipe_tile_raw_to_rgba(enum pipe_format format,
92 void *src,
93 uint w, uint h,
94 float *dst, unsigned dst_stride);
95
96
97 #ifdef __cplusplus
98 }
99 #endif
100
101 #endif