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
28 #include "util/u_inlines.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"
34 #include "r300_winsys.h"
36 unsigned r300_buffer_is_referenced(struct pipe_context
*context
,
37 struct pipe_resource
*buf
,
38 enum r300_reference_domain domain
)
40 struct r300_context
*r300
= r300_context(context
);
41 struct r300_buffer
*rbuf
= r300_buffer(buf
);
43 if (r300_buffer_is_user_buffer(buf
))
44 return PIPE_UNREFERENCED
;
46 if (r300
->rws
->is_buffer_referenced(r300
->rws
, rbuf
->buf
, domain
))
47 return PIPE_REFERENCED_FOR_READ
| PIPE_REFERENCED_FOR_WRITE
;
49 return PIPE_UNREFERENCED
;
52 static unsigned r300_buffer_is_referenced_by_cs(struct pipe_context
*context
,
53 struct pipe_resource
*buf
,
54 unsigned face
, unsigned level
)
56 return r300_buffer_is_referenced(context
, buf
, R300_REF_CS
);
59 /* External helper, not required to implent u_resource_vtbl:
61 int r300_upload_index_buffer(struct r300_context
*r300
,
62 struct pipe_resource
**index_buffer
,
67 struct pipe_resource
*upload_buffer
= NULL
;
68 unsigned index_offset
= start
* index_size
;
71 if (r300_buffer_is_user_buffer(*index_buffer
)) {
72 ret
= u_upload_buffer(r300
->upload_ib
,
81 *index_buffer
= upload_buffer
;
85 // pipe_resource_reference(&upload_buffer, NULL);
89 /* External helper, not required to implement u_resource_vtbl:
91 int r300_upload_user_buffers(struct r300_context
*r300
)
93 enum pipe_error ret
= PIPE_OK
;
96 nr
= r300
->vertex_buffer_count
;
98 for (i
= 0; i
< nr
; i
++) {
99 if (r300_buffer_is_user_buffer(r300
->vertex_buffer
[i
].buffer
)) {
100 struct pipe_resource
*upload_buffer
= NULL
;
101 unsigned offset
= 0; /*r300->vertex_buffer[i].buffer_offset * 4;*/
102 unsigned size
= r300
->vertex_buffer
[i
].buffer
->width0
;
103 unsigned upload_offset
;
104 ret
= u_upload_buffer(r300
->upload_vb
,
106 r300
->vertex_buffer
[i
].buffer
,
107 &upload_offset
, &upload_buffer
);
111 pipe_resource_reference(&r300
->vertex_buffer
[i
].buffer
, NULL
);
112 r300
->vertex_buffer
[i
].buffer
= upload_buffer
;
113 r300
->vertex_buffer
[i
].buffer_offset
= upload_offset
;
119 static void r300_winsys_buffer_destroy(struct r300_screen
*r300screen
,
120 struct r300_buffer
*rbuf
)
122 struct r300_winsys_screen
*rws
= r300screen
->rws
;
125 rws
->buffer_reference(rws
, &rbuf
->buf
, NULL
);
130 static void r300_buffer_destroy(struct pipe_screen
*screen
,
131 struct pipe_resource
*buf
)
133 struct r300_screen
*r300screen
= r300_screen(screen
);
134 struct r300_buffer
*rbuf
= r300_buffer(buf
);
136 r300_winsys_buffer_destroy(r300screen
, rbuf
);
141 r300_buffer_transfer_map( struct pipe_context
*pipe
,
142 struct pipe_transfer
*transfer
)
144 struct r300_screen
*r300screen
= r300_screen(pipe
->screen
);
145 struct r300_winsys_screen
*rws
= r300screen
->rws
;
146 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
148 boolean flush
= FALSE
;
151 if (rbuf
->user_buffer
)
152 return (uint8_t *) rbuf
->user_buffer
+ transfer
->box
.x
;
154 if (rbuf
->b
.b
.bind
& PIPE_BIND_CONSTANT_BUFFER
) {
158 /* check if the mapping is to a range we already flushed */
159 if (transfer
->usage
& PIPE_TRANSFER_DISCARD
) {
160 for (i
= 0; i
< rbuf
->num_ranges
; i
++) {
161 if ((transfer
->box
.x
>= rbuf
->ranges
[i
].start
) &&
162 (transfer
->box
.x
< rbuf
->ranges
[i
].end
))
166 /* unreference this hw buffer and allocate a new one */
167 rws
->buffer_reference(rws
, &rbuf
->buf
, NULL
);
169 rbuf
->num_ranges
= 0;
170 rbuf
->buf
= r300screen
->rws
->buffer_create(r300screen
->rws
, 16,
179 map
= rws
->buffer_map(rws
, rbuf
->buf
, transfer
->usage
);
184 /* map_buffer() returned a pointer to the beginning of the buffer,
185 * but transfers are expected to return a pointer to just the
186 * region specified in the box.
188 return map
+ transfer
->box
.x
;
191 static void r300_buffer_transfer_flush_region( struct pipe_context
*pipe
,
192 struct pipe_transfer
*transfer
,
193 const struct pipe_box
*box
)
195 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
197 unsigned offset
= transfer
->box
.x
+ box
->x
;
198 unsigned length
= box
->width
;
200 assert(box
->x
+ box
->width
<= transfer
->box
.width
);
202 if (rbuf
->user_buffer
)
205 if (rbuf
->b
.b
.bind
& PIPE_BIND_CONSTANT_BUFFER
)
208 /* mark the range as used */
209 for(i
= 0; i
< rbuf
->num_ranges
; ++i
) {
210 if(offset
<= rbuf
->ranges
[i
].end
&& rbuf
->ranges
[i
].start
<= (offset
+box
->width
)) {
211 rbuf
->ranges
[i
].start
= MIN2(rbuf
->ranges
[i
].start
, offset
);
212 rbuf
->ranges
[i
].end
= MAX2(rbuf
->ranges
[i
].end
, (offset
+length
));
217 rbuf
->ranges
[rbuf
->num_ranges
].start
= offset
;
218 rbuf
->ranges
[rbuf
->num_ranges
].end
= offset
+length
;
222 static void r300_buffer_transfer_unmap( struct pipe_context
*pipe
,
223 struct pipe_transfer
*transfer
)
225 struct r300_screen
*r300screen
= r300_screen(pipe
->screen
);
226 struct r300_winsys_screen
*rws
= r300screen
->rws
;
227 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
230 rws
->buffer_unmap(rws
, rbuf
->buf
);
234 struct u_resource_vtbl r300_buffer_vtbl
=
236 u_default_resource_get_handle
, /* get_handle */
237 r300_buffer_destroy
, /* resource_destroy */
238 r300_buffer_is_referenced_by_cs
, /* is_buffer_referenced */
239 u_default_get_transfer
, /* get_transfer */
240 u_default_transfer_destroy
, /* transfer_destroy */
241 r300_buffer_transfer_map
, /* transfer_map */
242 r300_buffer_transfer_flush_region
, /* transfer_flush_region */
243 r300_buffer_transfer_unmap
, /* transfer_unmap */
244 u_default_transfer_inline_write
/* transfer_inline_write */
247 struct pipe_resource
*r300_buffer_create(struct pipe_screen
*screen
,
248 const struct pipe_resource
*templ
)
250 struct r300_screen
*r300screen
= r300_screen(screen
);
251 struct r300_buffer
*rbuf
;
252 unsigned alignment
= 16;
254 rbuf
= CALLOC_STRUCT(r300_buffer
);
258 rbuf
->magic
= R300_BUFFER_MAGIC
;
261 rbuf
->b
.vtbl
= &r300_buffer_vtbl
;
262 pipe_reference_init(&rbuf
->b
.b
.reference
, 1);
263 rbuf
->b
.b
.screen
= screen
;
265 if (rbuf
->b
.b
.bind
& R300_BIND_OQBO
)
268 rbuf
->domain
= R300_DOMAIN_GTT
;
270 rbuf
->buf
= r300screen
->rws
->buffer_create(r300screen
->rws
,
286 struct pipe_resource
*r300_user_buffer_create(struct pipe_screen
*screen
,
291 struct r300_buffer
*rbuf
;
293 rbuf
= CALLOC_STRUCT(r300_buffer
);
297 rbuf
->magic
= R300_BUFFER_MAGIC
;
299 pipe_reference_init(&rbuf
->b
.b
.reference
, 1);
300 rbuf
->b
.vtbl
= &r300_buffer_vtbl
;
301 rbuf
->b
.b
.screen
= screen
;
302 rbuf
->b
.b
.format
= PIPE_FORMAT_R8_UNORM
;
303 rbuf
->b
.b
.usage
= PIPE_USAGE_IMMUTABLE
;
304 rbuf
->b
.b
.bind
= bind
;
305 rbuf
->b
.b
.width0
= bytes
;
306 rbuf
->b
.b
.height0
= 1;
307 rbuf
->b
.b
.depth0
= 1;
308 rbuf
->domain
= R300_DOMAIN_GTT
;
310 rbuf
->user_buffer
= ptr
;