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
->cs_is_buffer_referenced(r300
->cs
, 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
,
68 struct pipe_resource
*upload_buffer
= NULL
;
69 unsigned index_offset
= start
* index_size
;
72 if (r300_buffer_is_user_buffer(*index_buffer
)) {
73 ret
= u_upload_buffer(r300
->upload_ib
,
82 *index_buffer
= upload_buffer
;
83 *out_offset
= index_offset
/ index_size
;
89 // pipe_resource_reference(&upload_buffer, NULL);
93 /* External helper, not required to implement u_resource_vtbl:
95 int r300_upload_user_buffers(struct r300_context
*r300
)
97 enum pipe_error ret
= PIPE_OK
;
100 nr
= r300
->velems
->count
;
102 for (i
= 0; i
< nr
; i
++) {
103 struct pipe_vertex_buffer
*vb
=
104 &r300
->vertex_buffer
[r300
->velems
->velem
[i
].vertex_buffer_index
];
106 if (r300_buffer_is_user_buffer(vb
->buffer
)) {
107 struct pipe_resource
*upload_buffer
= NULL
;
108 unsigned offset
= 0; /*vb->buffer_offset * 4;*/
109 unsigned size
= vb
->buffer
->width0
;
110 unsigned upload_offset
;
111 ret
= u_upload_buffer(r300
->upload_vb
,
114 &upload_offset
, &upload_buffer
);
118 pipe_resource_reference(&vb
->buffer
, NULL
);
119 vb
->buffer
= upload_buffer
;
120 vb
->buffer_offset
= upload_offset
;
126 static void r300_buffer_destroy(struct pipe_screen
*screen
,
127 struct pipe_resource
*buf
)
129 struct r300_screen
*r300screen
= r300_screen(screen
);
130 struct r300_buffer
*rbuf
= r300_buffer(buf
);
131 struct r300_winsys_screen
*rws
= r300screen
->rws
;
133 if (rbuf
->constant_buffer
)
134 FREE(rbuf
->constant_buffer
);
137 rws
->buffer_reference(rws
, &rbuf
->buf
, NULL
);
139 util_mempool_free(&r300screen
->pool_buffers
, rbuf
);
142 static struct pipe_transfer
*
143 r300_default_get_transfer(struct pipe_context
*context
,
144 struct pipe_resource
*resource
,
145 struct pipe_subresource sr
,
147 const struct pipe_box
*box
)
149 struct r300_context
*r300
= r300_context(context
);
150 struct pipe_transfer
*transfer
=
151 util_mempool_malloc(&r300
->pool_transfers
);
153 transfer
->resource
= resource
;
155 transfer
->usage
= usage
;
156 transfer
->box
= *box
;
157 transfer
->stride
= 0;
158 transfer
->slice_stride
= 0;
159 transfer
->data
= NULL
;
161 /* Note strides are zero, this is ok for buffers, but not for
162 * textures 2d & higher at least.
167 static void r300_default_transfer_destroy(struct pipe_context
*pipe
,
168 struct pipe_transfer
*transfer
)
170 struct r300_context
*r300
= r300_context(pipe
);
171 util_mempool_free(&r300
->pool_transfers
, transfer
);
175 r300_buffer_transfer_map( struct pipe_context
*pipe
,
176 struct pipe_transfer
*transfer
)
178 struct r300_context
*r300
= r300_context(pipe
);
179 struct r300_screen
*r300screen
= r300_screen(pipe
->screen
);
180 struct r300_winsys_screen
*rws
= r300screen
->rws
;
181 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
183 boolean flush
= FALSE
;
186 if (rbuf
->user_buffer
)
187 return (uint8_t *) rbuf
->user_buffer
+ transfer
->box
.x
;
188 if (rbuf
->constant_buffer
)
189 return (uint8_t *) rbuf
->constant_buffer
+ transfer
->box
.x
;
191 /* check if the mapping is to a range we already flushed */
192 if (transfer
->usage
& PIPE_TRANSFER_DISCARD
) {
193 for (i
= 0; i
< rbuf
->num_ranges
; i
++) {
194 if ((transfer
->box
.x
>= rbuf
->ranges
[i
].start
) &&
195 (transfer
->box
.x
< rbuf
->ranges
[i
].end
))
199 /* unreference this hw buffer and allocate a new one */
200 rws
->buffer_reference(rws
, &rbuf
->buf
, NULL
);
202 rbuf
->num_ranges
= 0;
204 r300screen
->rws
->buffer_create(r300screen
->rws
,
205 rbuf
->b
.b
.width0
, 16,
214 map
= rws
->buffer_map(rws
, rbuf
->buf
, r300
->cs
, transfer
->usage
);
219 /* map_buffer() returned a pointer to the beginning of the buffer,
220 * but transfers are expected to return a pointer to just the
221 * region specified in the box.
223 return map
+ transfer
->box
.x
;
226 static void r300_buffer_transfer_flush_region( struct pipe_context
*pipe
,
227 struct pipe_transfer
*transfer
,
228 const struct pipe_box
*box
)
230 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
232 unsigned offset
= transfer
->box
.x
+ box
->x
;
233 unsigned length
= box
->width
;
235 assert(box
->x
+ box
->width
<= transfer
->box
.width
);
237 if (rbuf
->user_buffer
)
239 if (rbuf
->constant_buffer
)
242 /* mark the range as used */
243 for(i
= 0; i
< rbuf
->num_ranges
; ++i
) {
244 if(offset
<= rbuf
->ranges
[i
].end
&& rbuf
->ranges
[i
].start
<= (offset
+box
->width
)) {
245 rbuf
->ranges
[i
].start
= MIN2(rbuf
->ranges
[i
].start
, offset
);
246 rbuf
->ranges
[i
].end
= MAX2(rbuf
->ranges
[i
].end
, (offset
+length
));
251 rbuf
->ranges
[rbuf
->num_ranges
].start
= offset
;
252 rbuf
->ranges
[rbuf
->num_ranges
].end
= offset
+length
;
256 static void r300_buffer_transfer_unmap( struct pipe_context
*pipe
,
257 struct pipe_transfer
*transfer
)
259 struct r300_screen
*r300screen
= r300_screen(pipe
->screen
);
260 struct r300_winsys_screen
*rws
= r300screen
->rws
;
261 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
264 rws
->buffer_unmap(rws
, rbuf
->buf
);
268 struct u_resource_vtbl r300_buffer_vtbl
=
270 u_default_resource_get_handle
, /* get_handle */
271 r300_buffer_destroy
, /* resource_destroy */
272 r300_buffer_is_referenced_by_cs
, /* is_buffer_referenced */
273 r300_default_get_transfer
, /* get_transfer */
274 r300_default_transfer_destroy
, /* transfer_destroy */
275 r300_buffer_transfer_map
, /* transfer_map */
276 r300_buffer_transfer_flush_region
, /* transfer_flush_region */
277 r300_buffer_transfer_unmap
, /* transfer_unmap */
278 u_default_transfer_inline_write
/* transfer_inline_write */
281 struct pipe_resource
*r300_buffer_create(struct pipe_screen
*screen
,
282 const struct pipe_resource
*templ
)
284 struct r300_screen
*r300screen
= r300_screen(screen
);
285 struct r300_buffer
*rbuf
;
286 unsigned alignment
= 16;
288 rbuf
= util_mempool_malloc(&r300screen
->pool_buffers
);
290 rbuf
->magic
= R300_BUFFER_MAGIC
;
293 rbuf
->b
.vtbl
= &r300_buffer_vtbl
;
294 pipe_reference_init(&rbuf
->b
.b
.reference
, 1);
295 rbuf
->b
.b
.screen
= screen
;
296 rbuf
->domain
= R300_DOMAIN_GTT
;
297 rbuf
->num_ranges
= 0;
299 rbuf
->constant_buffer
= NULL
;
300 rbuf
->user_buffer
= NULL
;
302 /* Alloc constant buffers in RAM. */
303 if (templ
->bind
& PIPE_BIND_CONSTANT_BUFFER
) {
304 rbuf
->constant_buffer
= MALLOC(templ
->width0
);
309 r300screen
->rws
->buffer_create(r300screen
->rws
,
310 rbuf
->b
.b
.width0
, alignment
,
311 rbuf
->b
.b
.bind
, rbuf
->b
.b
.usage
,
315 util_mempool_free(&r300screen
->pool_buffers
, rbuf
);
322 struct pipe_resource
*r300_user_buffer_create(struct pipe_screen
*screen
,
327 struct r300_screen
*r300screen
= r300_screen(screen
);
328 struct r300_buffer
*rbuf
;
330 rbuf
= util_mempool_malloc(&r300screen
->pool_buffers
);
332 rbuf
->magic
= R300_BUFFER_MAGIC
;
334 pipe_reference_init(&rbuf
->b
.b
.reference
, 1);
335 rbuf
->b
.vtbl
= &r300_buffer_vtbl
;
336 rbuf
->b
.b
.screen
= screen
;
337 rbuf
->b
.b
.target
= PIPE_BUFFER
;
338 rbuf
->b
.b
.format
= PIPE_FORMAT_R8_UNORM
;
339 rbuf
->b
.b
.usage
= PIPE_USAGE_IMMUTABLE
;
340 rbuf
->b
.b
.bind
= bind
;
341 rbuf
->b
.b
.width0
= bytes
;
342 rbuf
->b
.b
.height0
= 1;
343 rbuf
->b
.b
.depth0
= 1;
345 rbuf
->domain
= R300_DOMAIN_GTT
;
346 rbuf
->num_ranges
= 0;
348 rbuf
->constant_buffer
= NULL
;
349 rbuf
->user_buffer
= ptr
;