lp_texture.h revision 3abc7b985ce0787c5103d1a86bd0ba07b127a82f 
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 LP_TEXTURE_H
29#define LP_TEXTURE_H
30
31
32#include "pipe/p_state.h"
33
34
35#define LP_MAX_TEXTURE_2D_LEVELS 13  /* 4K x 4K for now */
36#define LP_MAX_TEXTURE_3D_LEVELS 10  /* 512 x 512 x 512 for now */
37
38
39struct pipe_context;
40struct pipe_screen;
41struct llvmpipe_context;
42
43struct sw_displaytarget;
44
45
46struct llvmpipe_texture
47{
48   struct pipe_texture base;
49
50   unsigned long level_offset[LP_MAX_TEXTURE_2D_LEVELS];
51   unsigned stride[LP_MAX_TEXTURE_2D_LEVELS];
52
53   /**
54    * Display target, for textures with the PIPE_TEXTURE_USAGE_DISPLAY_TARGET
55    * usage.
56    */
57   struct sw_displaytarget *dt;
58
59   /**
60    * Malloc'ed data for regular textures, or a mapping to dt above.
61    */
62   void *data;
63
64   unsigned timestamp;
65};
66
67
68struct llvmpipe_transfer
69{
70   struct pipe_transfer base;
71
72   unsigned long offset;
73};
74
75
76/** cast wrappers */
77static INLINE struct llvmpipe_texture *
78llvmpipe_texture(struct pipe_texture *pt)
79{
80   return (struct llvmpipe_texture *) pt;
81}
82
83
84static INLINE const struct llvmpipe_texture *
85llvmpipe_texture_const(const struct pipe_texture *pt)
86{
87   return (const struct llvmpipe_texture *) pt;
88}
89
90
91static INLINE struct llvmpipe_transfer *
92llvmpipe_transfer(struct pipe_transfer *pt)
93{
94   return (struct llvmpipe_transfer *) pt;
95}
96
97
98static INLINE unsigned
99llvmpipe_texture_stride(struct pipe_texture *texture,
100                        unsigned level)
101{
102   struct llvmpipe_texture *lpt = llvmpipe_texture(texture);
103   assert(level < LP_MAX_TEXTURE_2D_LEVELS);
104   return lpt->stride[level];
105}
106
107
108void *
109llvmpipe_texture_map(struct pipe_texture *texture,
110                     unsigned face,
111                     unsigned level,
112                     unsigned zslice);
113
114void
115llvmpipe_texture_unmap(struct pipe_texture *texture,
116                       unsigned face,
117                       unsigned level,
118                       unsigned zslice);
119
120extern void
121llvmpipe_init_screen_texture_funcs(struct pipe_screen *screen);
122
123extern void
124llvmpipe_init_context_texture_funcs(struct pipe_context *pipe);
125
126#endif /* LP_TEXTURE_H */
127