2 * Copyright 2010 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 * Authors: Dave Airlie
27 #include "util/u_inlines.h"
28 #include "util/u_format.h"
29 #include "util/u_memory.h"
30 #include "util/u_upload_mgr.h"
31 #include "util/u_math.h"
33 #include "r300_screen_buffer.h"
35 #include "r300_winsys.h"
37 boolean
r300_buffer_is_referenced(struct r300_context
*r300
,
38 struct pipe_buffer
*buf
)
40 struct r300_buffer
*rbuf
= r300_buffer(buf
);
41 if (r300_buffer_is_user_buffer(buf
))
44 return r300
->rws
->is_buffer_referenced(r300
->rws
, rbuf
->buf
);
47 int r300_upload_index_buffer(struct r300_context
*r300
,
48 struct pipe_buffer
**index_buffer
,
53 struct pipe_buffer
*upload_buffer
= NULL
;
54 unsigned index_offset
= start
* index_size
;
57 if (r300_buffer_is_user_buffer(*index_buffer
)) {
58 ret
= u_upload_buffer(r300
->upload_ib
,
67 *index_buffer
= upload_buffer
;
71 // pipe_buffer_reference(&upload_buffer, NULL);
75 int r300_upload_user_buffers(struct r300_context
*r300
)
77 enum pipe_error ret
= PIPE_OK
;
80 nr
= r300
->vertex_buffer_count
;
82 for (i
= 0; i
< nr
; i
++) {
84 if (r300_buffer_is_user_buffer(r300
->vertex_buffer
[i
].buffer
)) {
85 struct pipe_buffer
*upload_buffer
= NULL
;
86 unsigned offset
= 0; /*r300->vertex_buffer[i].buffer_offset * 4;*/
87 unsigned size
= r300
->vertex_buffer
[i
].buffer
->size
;
88 unsigned upload_offset
;
89 ret
= u_upload_buffer(r300
->upload_vb
,
91 r300
->vertex_buffer
[i
].buffer
,
92 &upload_offset
, &upload_buffer
);
96 pipe_buffer_reference(&r300
->vertex_buffer
[i
].buffer
, NULL
);
97 r300
->vertex_buffer
[i
].buffer
= upload_buffer
;
98 r300
->vertex_buffer
[i
].buffer_offset
= upload_offset
;
104 static struct r300_winsys_buffer
*
105 r300_winsys_buffer_create(struct r300_screen
*r300screen
,
110 struct r300_winsys_screen
*rws
= r300screen
->rws
;
111 struct r300_winsys_buffer
*buf
;
113 buf
= rws
->buffer_create(rws
, alignment
, usage
, size
);
117 static void r300_winsys_buffer_destroy(struct r300_screen
*r300screen
,
118 struct r300_buffer
*rbuf
)
120 struct r300_winsys_screen
*rws
= r300screen
->rws
;
123 rws
->buffer_reference(rws
, &rbuf
->buf
, NULL
);
128 static struct pipe_buffer
*r300_buffer_create(struct pipe_screen
*screen
,
133 struct r300_screen
*r300screen
= r300_screen(screen
);
134 struct r300_buffer
*rbuf
;
136 rbuf
= CALLOC_STRUCT(r300_buffer
);
140 rbuf
->magic
= R300_BUFFER_MAGIC
;
142 pipe_reference_init(&rbuf
->base
.reference
, 1);
143 rbuf
->base
.screen
= screen
;
144 rbuf
->base
.alignment
= alignment
;
145 rbuf
->base
.usage
= usage
;
146 rbuf
->base
.size
= size
;
148 rbuf
->buf
= r300_winsys_buffer_create(r300screen
,
164 static struct pipe_buffer
*r300_user_buffer_create(struct pipe_screen
*screen
,
168 struct r300_buffer
*rbuf
;
170 rbuf
= CALLOC_STRUCT(r300_buffer
);
174 rbuf
->magic
= R300_BUFFER_MAGIC
;
176 pipe_reference_init(&rbuf
->base
.reference
, 1);
177 rbuf
->base
.screen
= screen
;
178 rbuf
->base
.alignment
= 1;
179 rbuf
->base
.usage
= 0;
180 rbuf
->base
.size
= bytes
;
182 rbuf
->user_buffer
= ptr
;
189 static void r300_buffer_destroy(struct pipe_buffer
*buf
)
191 struct r300_screen
*r300screen
= r300_screen(buf
->screen
);
192 struct r300_buffer
*rbuf
= r300_buffer(buf
);
194 r300_winsys_buffer_destroy(r300screen
, rbuf
);
199 r300_buffer_map_range(struct pipe_screen
*screen
,
200 struct pipe_buffer
*buf
,
201 unsigned offset
, unsigned length
,
204 struct r300_screen
*r300screen
= r300_screen(screen
);
205 struct r300_winsys_screen
*rws
= r300screen
->rws
;
206 struct r300_buffer
*rbuf
= r300_buffer(buf
);
211 if (rbuf
->user_buffer
)
212 return rbuf
->user_buffer
;
214 if (rbuf
->base
.usage
& PIPE_BUFFER_USAGE_CONSTANT
)
217 /* check if the mapping is to a range we already flushed */
218 if (usage
& PIPE_BUFFER_USAGE_DISCARD
) {
219 for (i
= 0; i
< rbuf
->num_ranges
; i
++) {
221 if ((offset
>= rbuf
->ranges
[i
].start
) &&
222 (offset
< rbuf
->ranges
[i
].end
))
226 /* unreference this hw buffer and allocate a new one */
227 rws
->buffer_reference(rws
, &rbuf
->buf
, NULL
);
229 rbuf
->num_ranges
= 0;
231 rbuf
->buf
= r300_winsys_buffer_create(r300screen
,
232 rbuf
->base
.alignment
,
240 map
= rws
->buffer_map(rws
, rbuf
->buf
, usage
| R300_USAGE_FLAG_DONT_SYNC
);
246 r300_buffer_flush_mapped_range( struct pipe_screen
*screen
,
247 struct pipe_buffer
*buf
,
251 struct r300_buffer
*rbuf
= r300_buffer(buf
);
254 if (rbuf
->user_buffer
)
257 if (rbuf
->base
.usage
& PIPE_BUFFER_USAGE_CONSTANT
)
260 /* mark the range as used */
261 for(i
= 0; i
< rbuf
->num_ranges
; ++i
) {
262 if(offset
<= rbuf
->ranges
[i
].end
&& rbuf
->ranges
[i
].start
<= (offset
+length
)) {
263 rbuf
->ranges
[i
].start
= MIN2(rbuf
->ranges
[i
].start
, offset
);
264 rbuf
->ranges
[i
].end
= MAX2(rbuf
->ranges
[i
].end
, (offset
+length
));
269 rbuf
->ranges
[rbuf
->num_ranges
].start
= offset
;
270 rbuf
->ranges
[rbuf
->num_ranges
].end
= offset
+length
;
275 r300_buffer_map(struct pipe_screen
*screen
,
276 struct pipe_buffer
*buf
,
279 struct r300_screen
*r300screen
= r300_screen(screen
);
280 struct r300_winsys_screen
*rws
= r300screen
->rws
;
281 struct r300_buffer
*rbuf
= r300_buffer(buf
);
284 if (rbuf
->user_buffer
)
285 return rbuf
->user_buffer
;
287 map
= rws
->buffer_map(rws
, rbuf
->buf
, usage
);
293 r300_buffer_unmap(struct pipe_screen
*screen
,
294 struct pipe_buffer
*buf
)
296 struct r300_screen
*r300screen
= r300_screen(screen
);
297 struct r300_winsys_screen
*rws
= r300screen
->rws
;
298 struct r300_buffer
*rbuf
= r300_buffer(buf
);
301 rws
->buffer_unmap(rws
, rbuf
->buf
);
305 void r300_screen_init_buffer_functions(struct r300_screen
*r300screen
)
307 r300screen
->screen
.buffer_create
= r300_buffer_create
;
308 r300screen
->screen
.user_buffer_create
= r300_user_buffer_create
;
309 r300screen
->screen
.buffer_map
= r300_buffer_map
;
310 r300screen
->screen
.buffer_map_range
= r300_buffer_map_range
;
311 r300screen
->screen
.buffer_flush_mapped_range
= r300_buffer_flush_mapped_range
;
312 r300screen
->screen
.buffer_unmap
= r300_buffer_unmap
;
313 r300screen
->screen
.buffer_destroy
= r300_buffer_destroy
;