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
|
/**************************************************************************
*
* 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.
*
**************************************************************************/
/**
* Screen, Adapter or GPU
*
* These are driver functions/facilities that are context independent.
*/
#ifndef P_SCREEN_H
#define P_SCREEN_H
#include "pipe/p_compiler.h"
#include "pipe/p_state.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* Gallium screen/adapter context. Basically everything
* hardware-specific that doesn't actually require a rendering
* context.
*/
struct pipe_screen {
struct pipe_winsys *winsys;
void (*destroy)( struct pipe_screen * );
const char *(*get_name)( struct pipe_screen * );
const char *(*get_vendor)( struct pipe_screen * );
/**
* Query an integer-valued capability/parameter/limit
* \param param one of PIPE_CAP_x
*/
int (*get_param)( struct pipe_screen *, int param );
/**
* Query a float-valued capability/parameter/limit
* \param param one of PIPE_CAP_x
*/
float (*get_paramf)( struct pipe_screen *, int param );
/**
* Check if the given pipe_format is supported as a texture or
* drawing surface.
* \param type one of PIPE_TEXTURE, PIPE_SURFACE
*/
boolean (*is_format_supported)( struct pipe_screen *,
enum pipe_format format,
uint type );
/**
* Create a new texture object, using the given template info.
*/
struct pipe_texture * (*texture_create)(struct pipe_screen *,
const struct pipe_texture *templat);
/**
* Create a new texture object, using the given template info, but on top of
* existing memory.
*
* It is assumed that the buffer data is layed out according to the expected
* by the hardware. NULL will be returned if any inconsistency is found.
*/
struct pipe_texture * (*texture_blanket)(struct pipe_screen *,
const struct pipe_texture *templat,
const unsigned *pitch,
struct pipe_buffer *buffer);
void (*texture_release)(struct pipe_screen *,
struct pipe_texture **pt);
/** Get a surface which is a "view" into a texture */
struct pipe_surface *(*get_tex_surface)(struct pipe_screen *,
struct pipe_texture *texture,
unsigned face, unsigned level,
unsigned zslice,
unsigned usage );
/* Surfaces allocated by the above must be released here:
*/
void (*tex_surface_release)( struct pipe_screen *,
struct pipe_surface ** );
void *(*surface_map)( struct pipe_screen *,
struct pipe_surface *surface,
unsigned flags );
void (*surface_unmap)( struct pipe_screen *,
struct pipe_surface *surface );
};
#ifdef __cplusplus
}
#endif
#endif /* P_SCREEN_H */
|
