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
|
/**********************************************************
* Copyright 2008-2009 VMware, Inc. 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, sublicense, 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 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
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* 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 SVGA_TEXTURE_H
#define SVGA_TEXTURE_H
#include "pipe/p_compiler.h"
#include "pipe/p_state.h"
#include "util/u_inlines.h"
#include "svga_screen_cache.h"
struct pipe_context;
struct pipe_screen;
struct svga_context;
struct svga_winsys_surface;
enum SVGA3dSurfaceFormat;
#define SVGA_MAX_TEXTURE_LEVELS 12 /* 2048x2048 */
/**
* A sampler's view into a texture
*
* We currently cache one sampler view on
* the texture and in there by holding a reference
* from the texture to the sampler view.
*
* Because of this we can not hold a refernce to the
* texture from the sampler view. So the user
* of the sampler views must make sure that the
* texture has a reference take for as long as
* the sampler view is refrenced.
*
* Just unreferencing the sampler_view before the
* texture is enough.
*/
struct svga_sampler_view
{
struct pipe_reference reference;
struct pipe_texture *texture;
int min_lod;
int max_lod;
unsigned age;
struct svga_host_surface_cache_key key;
struct svga_winsys_surface *handle;
};
struct svga_texture
{
struct pipe_texture base;
boolean defined[6][PIPE_MAX_TEXTURE_LEVELS];
struct svga_sampler_view *cached_view;
unsigned view_age[SVGA_MAX_TEXTURE_LEVELS];
unsigned age;
boolean views_modified;
/**
* Creation key for the host surface handle.
*
* This structure describes all the host surface characteristics so that it
* can be looked up in cache, since creating a host surface is often a slow
* operation.
*/
struct svga_host_surface_cache_key key;
/**
* Handle for the host side surface.
*
* This handle is owned by this texture. Views should hold on to a reference
* to this texture and never destroy this handle directly.
*/
struct svga_winsys_surface *handle;
};
struct svga_surface
{
struct pipe_surface base;
struct svga_host_surface_cache_key key;
struct svga_winsys_surface *handle;
unsigned real_face;
unsigned real_level;
unsigned real_zslice;
boolean dirty;
};
struct svga_transfer
{
struct pipe_transfer base;
struct svga_winsys_buffer *hwbuf;
/* Height of the hardware buffer in pixel blocks */
unsigned hw_nblocksy;
/* Temporary malloc buffer when we can't allocate a hardware buffer
* big enough */
void *swbuf;
};
static INLINE struct svga_texture *
svga_texture(struct pipe_texture *texture)
{
return (struct svga_texture *)texture;
}
static INLINE struct svga_surface *
svga_surface(struct pipe_surface *surface)
{
assert(surface);
return (struct svga_surface *)surface;
}
static INLINE struct svga_transfer *
svga_transfer(struct pipe_transfer *transfer)
{
assert(transfer);
return (struct svga_transfer *)transfer;
}
extern struct svga_sampler_view *
svga_get_tex_sampler_view(struct pipe_context *pipe,
struct pipe_texture *pt,
unsigned min_lod, unsigned max_lod);
void
svga_validate_sampler_view(struct svga_context *svga, struct svga_sampler_view *v);
void
svga_destroy_sampler_view_priv(struct svga_sampler_view *v);
static INLINE void
svga_sampler_view_reference(struct svga_sampler_view **ptr, struct svga_sampler_view *v)
{
struct svga_sampler_view *old = *ptr;
if (pipe_reference(&(*ptr)->reference, &v->reference))
svga_destroy_sampler_view_priv(old);
*ptr = v;
}
extern void
svga_propagate_surface(struct pipe_context *pipe, struct pipe_surface *surf);
extern boolean
svga_surface_needs_propagation(struct pipe_surface *surf);
extern void
svga_screen_init_texture_functions(struct pipe_screen *screen);
enum SVGA3dSurfaceFormat
svga_translate_format(enum pipe_format format);
enum SVGA3dSurfaceFormat
svga_translate_format_render(enum pipe_format format);
#endif /* SVGA_TEXTURE_H */
|