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
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
/**************************************************************************
*
* Copyright © 2009 Jakob Bornecrantz
*
* 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 (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 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 BRW_WINSYS_H
#define BRW_WINSYS_H
#include "pipe/p_compiler.h"
struct brw_winsys;
struct pipe_fence_handle;
/* This currently just wraps dri_bo:
*/
struct brw_winsys_buffer {
struct brw_winsys_screen *sws;
void *bo;
unsigned offset;
unsigned size;
};
enum brw_buffer_usage {
I915_GEM_DOMAIN_RENDER,
I915_GEM_DOMAIN_SAMPLER,
I915_GEM_DOMAIN_VERTEX,
I915_GEM_DOMAIN_INSTRUCTION,
/* XXX: migrate from domains to explicit usage cases, eg below:
*/
/* use on textures */
BRW_USAGE_RENDER = 0x01,
BRW_USAGE_SAMPLER = 0x02,
BRW_USAGE_2D_TARGET = 0x04,
BRW_USAGE_2D_SOURCE = 0x08,
/* use on vertex */
BRW_USAGE_VERTEX = 0x10,
};
enum brw_buffer_type
{
BRW_BUFFER_TYPE_TEXTURE,
BRW_BUFFER_TYPE_SCANOUT, /**< a texture used for scanning out from */
BRW_BUFFER_TYPE_VERTEX,
BRW_BUFFER_TYPE_CURBE,
BRW_BUFFER_TYPE_QUERY,
BRW_BUFFER_TYPE_SHADER_CONSTANTS,
BRW_BUFFER_TYPE_WM_SCRATCH,
BRW_BUFFER_TYPE_BATCH,
BRW_BUFFER_TYPE_STATE_CACHE,
};
/* AKA winsys context:
*/
struct brw_batchbuffer {
struct brw_winsys *iws;
struct brw_winsys_buffer *buf;
/**
* Values exported to speed up the writing the batchbuffer,
* instead of having to go trough a accesor function for
* each dword written.
*/
/*{@*/
uint8_t *map;
uint8_t *ptr;
size_t size;
struct {
uint8_t *end_ptr;
} emit;
size_t relocs;
size_t max_relocs;
/*@}*/
};
struct brw_winsys_screen {
/**
* Batchbuffer functions.
*/
/*@{*/
/**
* Create a new batchbuffer.
*/
struct brw_batchbuffer *(*batchbuffer_create)(struct brw_winsys_screen *iws);
/**
* Emit a relocation to a buffer.
* Target position in batchbuffer is the same as ptr.
*/
int (*batchbuffer_reloc)(struct brw_batchbuffer *batch,
unsigned offset,
struct brw_winsys_buffer *reloc,
unsigned pre_add,
enum brw_buffer_usage usage);
/**
* Flush a bufferbatch.
*/
void (*batchbuffer_flush)(struct brw_batchbuffer *batch,
struct pipe_fence_handle **fence);
/**
* Destroy a batchbuffer.
*/
void (*batchbuffer_destroy)(struct brw_batchbuffer *batch);
/*@}*/
/**
* Buffer functions.
*/
/*@{*/
/**
* Create a buffer.
*/
struct brw_winsys_buffer *(*bo_alloc)( struct brw_winsys_screen *sws,
enum brw_buffer_type type,
unsigned size,
unsigned alignment );
/* Reference and unreference buffers:
*/
void (*bo_reference)( struct brw_winsys_buffer *buffer );
void (*bo_unreference)( struct brw_winsys_buffer *buffer );
void (*bo_emit_reloc)( struct brw_winsys_buffer *buffer,
unsigned domain,
unsigned a,
unsigned b,
unsigned offset,
struct brw_winsys_buffer *b2);
void (*bo_subdata)(struct brw_winsys_buffer *buffer,
size_t offset,
size_t size,
const void *data);
boolean (*bo_is_busy)(struct brw_winsys_buffer *buffer);
boolean (*bo_references)(struct brw_winsys_buffer *a,
struct brw_winsys_buffer *b);
/* XXX: couldn't this be handled by returning true/false on
* bo_emit_reloc?
*/
boolean (*check_aperture_space)( struct brw_winsys_screen *iws,
struct brw_winsys_buffer **buffers,
unsigned count );
/**
* Map a buffer.
*/
void *(*bo_map)(struct brw_winsys_buffer *buffer,
boolean write);
/**
* Unmap a buffer.
*/
void (*bo_unmap)(struct brw_winsys_buffer *buffer);
/*@}*/
/**
* Fence functions.
*/
/*@{*/
/**
* Reference fence and set ptr to fence.
*/
void (*fence_reference)(struct brw_winsys *iws,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *fence);
/**
* Check if a fence has finished.
*/
int (*fence_signalled)(struct brw_winsys *iws,
struct pipe_fence_handle *fence);
/**
* Wait on a fence to finish.
*/
int (*fence_finish)(struct brw_winsys *iws,
struct pipe_fence_handle *fence);
/*@}*/
/**
* Destroy the winsys.
*/
void (*destroy)(struct brw_winsys *iws);
};
/**
* Create brw pipe_screen.
*/
struct pipe_screen *brw_create_screen(struct brw_winsys *iws, unsigned pci_id);
/**
* Create a brw pipe_context.
*/
struct pipe_context *brw_create_context(struct pipe_screen *screen);
/**
* Get the brw_winsys buffer backing the texture.
*
* TODO UGLY
*/
struct pipe_texture;
boolean brw_get_texture_buffer_brw(struct pipe_texture *texture,
struct brw_winsys_buffer **buffer,
unsigned *stride);
/**
* Wrap a brw_winsys buffer with a texture blanket.
*
* TODO UGLY
*/
struct pipe_texture * brw_texture_blanket(struct pipe_screen *screen,
struct pipe_texture *tmplt,
unsigned pitch,
struct brw_winsys_buffer *buffer);
#endif
|
