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
229
230
231
232
233
234
235
236
237
238
239
240
|
/**************************************************************************
*
* 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 "main/mtypes.h"
#include "p_state.h"
/* Drawing currently kludged up via the existing tnl/ module.
*/
struct vertex_buffer;
/**
* Software pipeline rendering context. Basically a collection of
* state setting functions, plus VBO drawing entrypoint.
*/
struct pipe_context {
struct pipe_winsys *winsys;
void (*destroy)( struct pipe_context * );
/*
* Queries
*/
const GLuint *(*supported_formats)(struct pipe_context *pipe,
GLuint *numFormats);
void (*max_texture_size)(struct pipe_context *pipe,
GLuint textureType, /* PIPE_TEXTURE_x */
GLuint *maxWidth,
GLuint *maxHeight,
GLuint *maxDepth);
const char *(*get_name)( struct pipe_context *pipe );
const char *(*get_vendor)( struct pipe_context *pipe );
/*
* Drawing
*/
void (*draw_vb)( struct pipe_context *pipe,
struct vertex_buffer *VB );
void (*draw_vertices)( struct pipe_context *pipe,
GLuint mode,
GLuint numVertex, const GLfloat *verts,
GLuint numAttribs, const GLuint attribs[]);
/** Clear a surface to given value (no scissor; clear whole surface) */
void (*clear)(struct pipe_context *pipe, struct pipe_surface *ps,
GLuint clearValue);
/** occlusion counting (XXX this may be temporary - we should probably
* have generic query objects with begin/end methods)
*/
void (*reset_occlusion_counter)(struct pipe_context *pipe);
GLuint (*get_occlusion_counter)(struct pipe_context *pipe);
/*
* State functions
*/
void (*set_alpha_test_state)( struct pipe_context *,
const struct pipe_alpha_test_state * );
void (*set_blend_state)( struct pipe_context *,
const struct pipe_blend_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_clear_color_state)( struct pipe_context *,
const struct pipe_clear_color_state * );
void (*set_depth_state)( struct pipe_context *,
const struct pipe_depth_state * );
void (*set_framebuffer_state)( struct pipe_context *,
const struct pipe_framebuffer_state * );
void (*set_fs_state)( struct pipe_context *,
const struct pipe_fs_state * );
void (*set_polygon_stipple)( struct pipe_context *,
const struct pipe_poly_stipple * );
void (*set_setup_state)( struct pipe_context *,
const struct pipe_setup_state * );
void (*set_scissor_state)( struct pipe_context *,
const struct pipe_scissor_state * );
void (*set_stencil_state)( struct pipe_context *,
const struct pipe_stencil_state * );
void (*set_sampler_state)( struct pipe_context *,
GLuint unit,
const struct pipe_sampler_state * );
void (*set_texture_state)( struct pipe_context *,
GLuint unit,
struct pipe_mipmap_tree * );
void (*set_viewport_state)( struct pipe_context *,
const struct pipe_viewport_state * );
/*
* Surface functions
* This might go away...
*/
struct pipe_surface *(*surface_alloc)(struct pipe_context *pipe,
GLuint format);
struct pipe_surface *(*get_tex_surface)(struct pipe_context *pipe,
struct pipe_mipmap_tree *texture,
GLuint face, GLuint level,
GLuint zslice);
/*
* Memory region functions
* Some of these may go away...
*/
struct pipe_region *(*region_alloc)(struct pipe_context *pipe,
GLuint cpp, GLuint width, GLuint height,
GLbitfield flags);
void (*region_release)(struct pipe_context *pipe, struct pipe_region **r);
void (*region_idle)(struct pipe_context *pipe, struct pipe_region *region);
GLubyte *(*region_map)(struct pipe_context *pipe, struct pipe_region *r);
void (*region_unmap)(struct pipe_context *pipe, struct pipe_region *r);
void (*region_data)(struct pipe_context *pipe,
struct pipe_region *dest,
GLuint dest_offset,
GLuint destx, GLuint desty,
const void *src, GLuint src_stride,
GLuint srcx, GLuint srcy, GLuint width, GLuint height);
void (*region_copy)(struct pipe_context *pipe,
struct pipe_region *dest,
GLuint dest_offset,
GLuint destx, GLuint desty,
struct pipe_region *src, /* don't make this const -
need to map/unmap */
GLuint src_offset,
GLuint srcx, GLuint srcy, GLuint width, GLuint height);
void (*region_fill)(struct pipe_context *pipe,
struct pipe_region *dst,
GLuint dst_offset,
GLuint dstx, GLuint dsty,
GLuint width, GLuint height,
GLuint value);
/*
* Texture functions
*/
GLboolean (*mipmap_tree_layout)( struct pipe_context *pipe,
struct pipe_mipmap_tree *mt );
/* Flush rendering:
*/
void (*flush)( struct pipe_context *pipe,
unsigned flags );
};
static INLINE void
pipe_region_reference(struct pipe_region **dst, struct pipe_region *src)
{
assert(*dst == NULL);
if (src) {
src->refcount++;
*dst = src;
}
}
static INLINE void
pipe_surface_reference(struct pipe_surface **dst, struct pipe_surface *src)
{
assert(*dst == NULL);
if (src) {
src->refcount++;
*dst = src;
}
}
static INLINE void
pipe_surface_unreference(struct pipe_surface **ps)
{
assert(*ps);
(*ps)->refcount--;
if ((*ps)->refcount <= 0) {
/* XXX need a proper surface->free method */
free(*ps);
}
*ps = NULL;
}
#endif /* PIPE_CONTEXT_H */
|
