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
|
/**************************************************************************
*
* 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 PIPE_CONTEXT_H
#define PIPE_CONTEXT_H
#include "p_state.h"
#ifdef __cplusplus
extern "C" {
#endif
struct pipe_screen;
struct pipe_state_cache;
/* Opaque driver handles:
*/
struct pipe_query;
/**
* Gallium rendering context. Basically:
* - state setting functions
* - VBO drawing functions
* - surface functions
* - device queries
*/
struct pipe_context {
struct pipe_winsys *winsys;
struct pipe_screen *screen;
void *priv; /** context private data (for DRI for example) */
void (*destroy)( struct pipe_context * );
/*
* Drawing.
* Return false on fallbacks (temporary??)
*/
boolean (*draw_arrays)( struct pipe_context *pipe,
unsigned mode, unsigned start, unsigned count);
boolean (*draw_elements)( struct pipe_context *pipe,
struct pipe_buffer *indexBuffer,
unsigned indexSize,
unsigned mode, unsigned start, unsigned count);
/**
* Query objects
*/
struct pipe_query *(*create_query)( struct pipe_context *pipe,
unsigned query_type );
void (*destroy_query)(struct pipe_context *pipe,
struct pipe_query *q);
void (*begin_query)(struct pipe_context *pipe, struct pipe_query *q);
void (*end_query)(struct pipe_context *pipe, struct pipe_query *q);
boolean (*get_query_result)(struct pipe_context *pipe,
struct pipe_query *q,
boolean wait,
uint64 *result);
/*
* State functions
*/
void * (*create_blend_state)(struct pipe_context *,
const struct pipe_blend_state *);
void (*bind_blend_state)(struct pipe_context *, void *);
void (*delete_blend_state)(struct pipe_context *, void *);
void * (*create_sampler_state)(struct pipe_context *,
const struct pipe_sampler_state *);
void (*bind_sampler_state)(struct pipe_context *, unsigned unit, void *);
void (*delete_sampler_state)(struct pipe_context *, void *);
void * (*create_rasterizer_state)(struct pipe_context *,
const struct pipe_rasterizer_state *);
void (*bind_rasterizer_state)(struct pipe_context *, void *);
void (*delete_rasterizer_state)(struct pipe_context *, void *);
void * (*create_depth_stencil_alpha_state)(struct pipe_context *,
const struct pipe_depth_stencil_alpha_state *);
void (*bind_depth_stencil_alpha_state)(struct pipe_context *, void *);
void (*delete_depth_stencil_alpha_state)(struct pipe_context *, void *);
void * (*create_fs_state)(struct pipe_context *,
const struct pipe_shader_state *);
void (*bind_fs_state)(struct pipe_context *, void *);
void (*delete_fs_state)(struct pipe_context *, void *);
void * (*create_vs_state)(struct pipe_context *,
const struct pipe_shader_state *);
void (*bind_vs_state)(struct pipe_context *, void *);
void (*delete_vs_state)(struct pipe_context *, void *);
/* The following look more properties than states.
* maybe combine a few of them into states or pass them
* in the bind calls to the state */
void (*set_blend_color)( struct pipe_context *,
const struct pipe_blend_color * );
void (*set_clip_state)( struct pipe_context *,
const struct pipe_clip_state * );
void (*set_constant_buffer)( struct pipe_context *,
uint shader, uint index,
const struct pipe_constant_buffer *buf );
void (*set_framebuffer_state)( struct pipe_context *,
const struct pipe_framebuffer_state * );
void (*set_polygon_stipple)( struct pipe_context *,
const struct pipe_poly_stipple * );
void (*set_scissor_state)( struct pipe_context *,
const struct pipe_scissor_state * );
/* Currently a sampler is constrained to sample from a single texture:
*/
void (*set_sampler_texture)( struct pipe_context *,
unsigned sampler,
struct pipe_texture * );
void (*set_viewport_state)( struct pipe_context *,
const struct pipe_viewport_state * );
/*
* Vertex arrays
*/
void (*set_vertex_buffer)( struct pipe_context *,
unsigned index,
const struct pipe_vertex_buffer * );
void (*set_vertex_element)( struct pipe_context *,
unsigned index,
const struct pipe_vertex_element * );
/*
* Surface functions
*/
void (*surface_copy)(struct pipe_context *pipe,
unsigned do_flip, /*<< flip surface contents vertically */
struct pipe_surface *dest,
unsigned destx, unsigned desty,
struct pipe_surface *src, /* don't make this const -
need to map/unmap */
unsigned srcx, unsigned srcy,
unsigned width, unsigned height);
void (*surface_fill)(struct pipe_context *pipe,
struct pipe_surface *dst,
unsigned dstx, unsigned dsty,
unsigned width, unsigned height,
unsigned value);
void (*clear)(struct pipe_context *pipe,
struct pipe_surface *ps,
unsigned clearValue);
/**
* Called when texture data is changed.
* Note: we could pass some hints about which mip levels or cube faces
* have changed...
* XXX this may go away - could pass a 'write' flag to get_tex_surface()
*/
void (*texture_update)(struct pipe_context *pipe,
struct pipe_texture *texture);
/* Flush rendering:
*/
void (*flush)( struct pipe_context *pipe,
unsigned flags );
};
#ifdef __cplusplus
}
#endif
#endif /* PIPE_CONTEXT_H */
|
