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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/**************************************************************************
*
* 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 LP_TEXTURE_H
#define LP_TEXTURE_H
#include "pipe/p_state.h"
#include "util/u_debug.h"
#include "lp_limits.h"
enum lp_texture_usage
{
LP_TEX_USAGE_READ = 100,
LP_TEX_USAGE_READ_WRITE,
LP_TEX_USAGE_WRITE_ALL
};
/** Per-tile layout mode */
enum lp_texture_layout
{
LP_TEX_LAYOUT_NONE = 0, /**< no layout for the tile data yet */
LP_TEX_LAYOUT_TILED, /**< the tile data is in tiled layout */
LP_TEX_LAYOUT_LINEAR, /**< the tile data is in linear layout */
LP_TEX_LAYOUT_BOTH /**< the tile data is in both modes */
};
struct pipe_context;
struct pipe_screen;
struct llvmpipe_context;
struct sw_displaytarget;
/**
* We keep one or two copies of the texture image data: one in a simple
* linear layout (for texture sampling) and another in a tiled layout (for
* render targets). We keep track of whether each image tile is linear
* or tiled on a per-tile basis.
*/
/** A 1D/2D/3D image, one mipmap level */
struct llvmpipe_texture_image
{
void *data;
};
/**
* llvmpipe subclass of pipe_resource. A texture, drawing surface,
* vertex buffer, const buffer, etc.
* Textures are stored differently than othere types of objects such as
* vertex buffers and const buffers.
* The former are tiled and have per-tile layout flags.
* The later are simple malloc'd blocks of memory.
*/
struct llvmpipe_resource
{
struct pipe_resource base;
/** Row stride in bytes */
unsigned row_stride[LP_MAX_TEXTURE_LEVELS];
/** Image stride (for cube maps or 3D textures) in bytes */
unsigned img_stride[LP_MAX_TEXTURE_LEVELS];
unsigned tiles_per_row[LP_MAX_TEXTURE_LEVELS];
unsigned tiles_per_image[LP_MAX_TEXTURE_LEVELS];
/** Number of 3D slices or cube faces per level */
unsigned num_slices_faces[LP_MAX_TEXTURE_LEVELS];
/**
* Display target, for textures with the PIPE_BIND_DISPLAY_TARGET
* usage.
*/
struct sw_displaytarget *dt;
/**
* Malloc'ed data for regular textures, or a mapping to dt above.
*/
struct llvmpipe_texture_image tiled[LP_MAX_TEXTURE_LEVELS];
struct llvmpipe_texture_image linear[LP_MAX_TEXTURE_LEVELS];
/**
* Data for non-texture resources.
*/
void *data;
/** array [level][face or slice][tile_y][tile_x] of layout values) */
enum lp_texture_layout *layout[LP_MAX_TEXTURE_LEVELS];
boolean userBuffer; /** Is this a user-space buffer? */
unsigned timestamp;
unsigned id; /**< temporary, for debugging */
};
struct llvmpipe_transfer
{
struct pipe_transfer base;
unsigned long offset;
};
/** cast wrappers */
static INLINE struct llvmpipe_resource *
llvmpipe_resource(struct pipe_resource *pt)
{
return (struct llvmpipe_resource *) pt;
}
static INLINE const struct llvmpipe_resource *
llvmpipe_resource_const(const struct pipe_resource *pt)
{
return (const struct llvmpipe_resource *) pt;
}
static INLINE struct llvmpipe_transfer *
llvmpipe_transfer(struct pipe_transfer *pt)
{
return (struct llvmpipe_transfer *) pt;
}
void llvmpipe_init_screen_resource_funcs(struct pipe_screen *screen);
void llvmpipe_init_context_resource_funcs(struct pipe_context *pipe);
static INLINE unsigned
llvmpipe_resource_stride(struct pipe_resource *resource,
unsigned level)
{
struct llvmpipe_resource *lpr = llvmpipe_resource(resource);
assert(level < LP_MAX_TEXTURE_2D_LEVELS);
return lpr->row_stride[level];
}
void *
llvmpipe_resource_map(struct pipe_resource *resource,
unsigned face_slice,
unsigned level,
unsigned zslice,
enum lp_texture_usage tex_usage,
enum lp_texture_layout layout);
void
llvmpipe_resource_unmap(struct pipe_resource *resource,
unsigned face_slice,
unsigned level,
unsigned zslice);
void *
llvmpipe_resource_data(struct pipe_resource *resource);
unsigned
llvmpipe_resource_size(const struct pipe_resource *resource);
ubyte *
llvmpipe_get_texture_image_address(struct llvmpipe_resource *lpr,
unsigned face_slice, unsigned level,
enum lp_texture_layout layout);
void *
llvmpipe_get_texture_image(struct llvmpipe_resource *resource,
unsigned face_slice, unsigned level,
enum lp_texture_usage usage,
enum lp_texture_layout layout);
void *
llvmpipe_get_texture_image_all(struct llvmpipe_resource *lpr,
unsigned level,
enum lp_texture_usage usage,
enum lp_texture_layout layout);
ubyte *
llvmpipe_get_texture_tile_linear(struct llvmpipe_resource *lpr,
unsigned face_slice, unsigned level,
enum lp_texture_usage usage,
unsigned x, unsigned y);
ubyte *
llvmpipe_get_texture_tile(struct llvmpipe_resource *lpr,
unsigned face_slice, unsigned level,
enum lp_texture_usage usage,
unsigned x, unsigned y);
extern void
llvmpipe_init_screen_texture_funcs(struct pipe_screen *screen);
extern void
llvmpipe_init_context_texture_funcs(struct pipe_context *pipe);
#endif /* LP_TEXTURE_H */
|
