1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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 SP_TEXTURE_H
29 #define SP_TEXTURE_H
30
31
32 #include "pipe/p_state.h"
33 #include "sp_limits.h"
34
35
36 struct pipe_context;
37 struct pipe_screen;
38 struct softpipe_context;
39
40
41 /**
42 * Subclass of pipe_resource.
43 */
44 struct softpipe_resource
45 {
46 struct pipe_resource base;
47
48 unsigned long level_offset[SP_MAX_TEXTURE_2D_LEVELS];
49 unsigned stride[SP_MAX_TEXTURE_2D_LEVELS];
50 unsigned img_stride[SP_MAX_TEXTURE_2D_LEVELS];
51
52 /**
53 * Display target, only valid for PIPE_TEXTURE_2D with the
54 * PIPE_BIND_DISPLAY_TARGET usage.
55 */
56 struct sw_displaytarget *dt;
57
58 /**
59 * Malloc'ed data for regular buffers and textures, or a mapping to dt above.
60 */
61 void *data;
62
63 /* True if texture images are power-of-two in all dimensions:
64 */
65 boolean pot;
66 boolean userBuffer;
67
68 unsigned timestamp;
69 };
70
71
72 /**
73 * Subclass of pipe_transfer.
74 */
75 struct softpipe_transfer
76 {
77 struct pipe_transfer base;
78
79 unsigned long offset;
80 };
81
82
83 /** cast wrappers */
84 static inline struct softpipe_resource *
softpipe_resource(struct pipe_resource * pt)85 softpipe_resource(struct pipe_resource *pt)
86 {
87 return (struct softpipe_resource *) pt;
88 }
89
90 static inline struct softpipe_transfer *
softpipe_transfer(struct pipe_transfer * pt)91 softpipe_transfer(struct pipe_transfer *pt)
92 {
93 return (struct softpipe_transfer *) pt;
94 }
95
96
97 /**
98 * Return pointer to a resource's actual data.
99 * This is a short-cut instead of using map()/unmap(), which should
100 * probably be fixed.
101 */
102 static inline void *
softpipe_resource_data(struct pipe_resource * pt)103 softpipe_resource_data(struct pipe_resource *pt)
104 {
105 if (!pt)
106 return NULL;
107
108 assert(softpipe_resource(pt)->dt == NULL);
109 return softpipe_resource(pt)->data;
110 }
111
112
113 extern void
114 softpipe_init_screen_texture_funcs(struct pipe_screen *screen);
115
116 extern void
117 softpipe_init_texture_funcs(struct pipe_context *pipe);
118
119 unsigned
120 softpipe_get_tex_image_offset(const struct softpipe_resource *spr,
121 unsigned level, unsigned layer);
122 #endif /* SP_TEXTURE */
123