1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef ST_TEXTURE_H
#define ST_TEXTURE_H
#include "main/mtypes.h"
struct pipe_context;
struct pipe_texture;
struct st_texture_image
{
struct gl_texture_image base;
/* These aren't stored in gl_texture_image
*/
GLuint level;
GLuint face;
/* If stImage->pt != NULL, image data is stored here.
* Else if stImage->base.Data != NULL, image is stored there.
* Else there is no image data.
*/
struct pipe_texture *pt;
struct pipe_surface *surface;
};
struct st_texture_object
{
struct gl_texture_object base; /* The "parent" object */
/* The texture must include at levels [0..lastLevel] once validated:
*/
GLuint lastLevel;
/* On validation any active images held in main memory or in other
* textures will be copied to this texture and the old storage freed.
*/
struct pipe_texture *pt;
GLboolean teximage_realloc;
};
static INLINE struct st_texture_object *
st_texture_object(struct gl_texture_object *obj)
{
return (struct st_texture_object *) obj;
}
static INLINE struct pipe_texture *
st_get_texobj_texture(struct gl_texture_object *texObj)
{
struct st_texture_object *stObj = st_texture_object(texObj);
return stObj ? stObj->pt : NULL;
}
static INLINE struct pipe_texture *
st_get_stobj_texture(struct st_texture_object *stObj)
{
return stObj ? stObj->pt : NULL;
}
extern struct pipe_texture *
st_texture_create(struct st_context *st,
enum pipe_texture_target target,
enum pipe_format format,
GLuint last_level,
GLuint width0,
GLuint height0,
GLuint depth0,
GLuint compress_byte,
GLuint tex_usage );
/* Check if an image fits into an existing texture object.
*/
extern GLboolean
st_texture_match_image(const struct pipe_texture *pt,
const struct gl_texture_image *image,
GLuint face, GLuint level);
/* Return a pointer to an image within a texture. Return image stride as
* well.
*/
extern GLubyte *
st_texture_image_map(struct st_context *st,
struct st_texture_image *stImage,
GLuint zoffset,
GLuint flags);
extern void
st_texture_image_unmap(struct st_context *st,
struct st_texture_image *stImage);
/* Return pointers to each 2d slice within an image. Indexed by depth
* value.
*/
extern const GLuint *
st_texture_depth_offsets(struct pipe_texture *pt, GLuint level);
/* Return the linear offset of an image relative to the start of its region.
*/
extern GLuint
st_texture_image_offset(const struct pipe_texture *pt,
GLuint face, GLuint level);
extern GLuint
st_texture_texel_offset(const struct pipe_texture * pt,
GLuint face, GLuint level,
GLuint col, GLuint row, GLuint img);
/* Upload an image into a texture
*/
extern void
st_texture_image_data(struct pipe_context *pipe,
struct pipe_texture *dst,
GLuint face, GLuint level, void *src,
GLuint src_row_pitch, GLuint src_image_pitch);
/* Copy an image between two textures
*/
extern void
st_texture_image_copy(struct pipe_context *pipe,
struct pipe_texture *dst, GLuint dstLevel,
struct pipe_texture *src,
GLuint face);
#endif
|
