lp_texture.h revision 287c94ea4987033f9c99a2f91c5750c9083504ca 
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#include "util/u_debug.h"
34
35
36#define LP_MAX_TEXTURE_2D_LEVELS 12  /* 2K x 2K for now */
37#define LP_MAX_TEXTURE_3D_LEVELS 10  /* 512 x 512 x 512 for now */
38
39
40struct pipe_context;
41struct pipe_screen;
42struct llvmpipe_context;
43
44struct sw_displaytarget;
45
46
47struct llvmpipe_resource
48{
49   struct pipe_resource base;
50
51   unsigned long level_offset[LP_MAX_TEXTURE_2D_LEVELS];
52   unsigned stride[LP_MAX_TEXTURE_2D_LEVELS];
53
54   /**
55    * Display target, for textures with the PIPE_BIND_DISPLAY_TARGET
56    * usage.
57    */
58   struct sw_displaytarget *dt;
59
60   /**
61    * Malloc'ed data for regular textures, or a mapping to dt above.
62    */
63   void *data;
64
65   boolean userBuffer;  /** Is this a user-space buffer? */
66   unsigned timestamp;
67};
68
69
70struct llvmpipe_transfer
71{
72   struct pipe_transfer base;
73
74   unsigned long offset;
75};
76
77
78/** cast wrappers */
79static INLINE struct llvmpipe_resource *
80llvmpipe_resource(struct pipe_resource *pt)
81{
82   return (struct llvmpipe_resource *) pt;
83}
84
85
86static INLINE const struct llvmpipe_resource *
87llvmpipe_resource_const(const struct pipe_resource *pt)
88{
89   return (const struct llvmpipe_resource *) pt;
90}
91
92
93static INLINE struct llvmpipe_transfer *
94llvmpipe_transfer(struct pipe_transfer *pt)
95{
96   return (struct llvmpipe_transfer *) pt;
97}
98
99
100void llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen);
101void llvmpipe_init_context_resource_funcs(struct pipe_context *pipe);
102
103static INLINE unsigned
104llvmpipe_resource_stride(struct pipe_resource *texture,
105                        unsigned level)
106{
107   struct llvmpipe_resource *lpt = llvmpipe_resource(texture);
108   assert(level < LP_MAX_TEXTURE_2D_LEVELS);
109   return lpt->stride[level];
110}
111
112
113void *
114llvmpipe_resource_map(struct pipe_resource *texture,
115		      unsigned usage,
116		      unsigned face,
117		      unsigned level,
118		      unsigned zslice);
119
120void
121llvmpipe_resource_unmap(struct pipe_resource *texture,
122                       unsigned face,
123                       unsigned level,
124                       unsigned zslice);
125
126
127#endif /* LP_TEXTURE_H */
128