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
);
44 return PIPE_UNREFERENCED
;
46 if (r300
->rws
->cs_is_buffer_referenced(r300
->cs
, rbuf
->cs_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 level
, int layer
)
56 return r300_buffer_is_referenced(context
, buf
, R300_REF_CS
);
59 void r300_upload_index_buffer(struct r300_context
*r300
,
60 struct pipe_resource
**index_buffer
,
61 unsigned index_size
, unsigned *start
,
64 unsigned index_offset
;
65 uint8_t *ptr
= r300_buffer(*index_buffer
)->b
.user_ptr
;
70 u_upload_data(r300
->vbuf_mgr
->uploader
,
71 0, count
* index_size
,
72 ptr
+ (*start
* index_size
),
74 index_buffer
, &flushed
);
76 *start
= index_offset
/ index_size
;
78 if (flushed
|| !r300
->upload_ib_validated
) {
79 r300
->upload_ib_validated
= FALSE
;
80 r300
->validate_buffers
= TRUE
;
84 static void r300_buffer_destroy(struct pipe_screen
*screen
,
85 struct pipe_resource
*buf
)
87 struct r300_screen
*r300screen
= r300_screen(screen
);
88 struct r300_buffer
*rbuf
= r300_buffer(buf
);
89 struct r300_winsys_screen
*rws
= r300screen
->rws
;
91 if (rbuf
->constant_buffer
)
92 FREE(rbuf
->constant_buffer
);
95 rws
->buffer_reference(rws
, &rbuf
->buf
, NULL
);
97 util_slab_free(&r300screen
->pool_buffers
, rbuf
);
100 static struct pipe_transfer
*
101 r300_buffer_get_transfer(struct pipe_context
*context
,
102 struct pipe_resource
*resource
,
105 const struct pipe_box
*box
)
107 struct r300_context
*r300
= r300_context(context
);
108 struct pipe_transfer
*transfer
=
109 util_slab_alloc(&r300
->pool_transfers
);
111 transfer
->resource
= resource
;
112 transfer
->level
= level
;
113 transfer
->usage
= usage
;
114 transfer
->box
= *box
;
115 transfer
->stride
= 0;
116 transfer
->layer_stride
= 0;
117 transfer
->data
= NULL
;
119 /* Note strides are zero, this is ok for buffers, but not for
120 * textures 2d & higher at least.
125 static void r300_buffer_transfer_destroy(struct pipe_context
*pipe
,
126 struct pipe_transfer
*transfer
)
128 struct r300_context
*r300
= r300_context(pipe
);
129 util_slab_free(&r300
->pool_transfers
, transfer
);
133 r300_buffer_transfer_map( struct pipe_context
*pipe
,
134 struct pipe_transfer
*transfer
)
136 struct r300_context
*r300
= r300_context(pipe
);
137 struct r300_screen
*r300screen
= r300_screen(pipe
->screen
);
138 struct r300_winsys_screen
*rws
= r300screen
->rws
;
139 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
142 if (rbuf
->b
.user_ptr
)
143 return (uint8_t *) rbuf
->b
.user_ptr
+ transfer
->box
.x
;
144 if (rbuf
->constant_buffer
)
145 return (uint8_t *) rbuf
->constant_buffer
+ transfer
->box
.x
;
147 map
= rws
->buffer_map(rws
, rbuf
->buf
, r300
->cs
, transfer
->usage
);
152 return map
+ transfer
->box
.x
;
155 static void r300_buffer_transfer_flush_region( struct pipe_context
*pipe
,
156 struct pipe_transfer
*transfer
,
157 const struct pipe_box
*box
)
162 static void r300_buffer_transfer_unmap( struct pipe_context
*pipe
,
163 struct pipe_transfer
*transfer
)
165 struct r300_screen
*r300screen
= r300_screen(pipe
->screen
);
166 struct r300_winsys_screen
*rws
= r300screen
->rws
;
167 struct r300_buffer
*rbuf
= r300_buffer(transfer
->resource
);
170 rws
->buffer_unmap(rws
, rbuf
->buf
);
174 static void r300_buffer_transfer_inline_write(struct pipe_context
*pipe
,
175 struct pipe_resource
*resource
,
178 const struct pipe_box
*box
,
181 unsigned layer_stride
)
183 struct r300_context
*r300
= r300_context(pipe
);
184 struct r300_winsys_screen
*rws
= r300
->screen
->rws
;
185 struct r300_buffer
*rbuf
= r300_buffer(resource
);
188 if (rbuf
->constant_buffer
) {
189 memcpy(rbuf
->constant_buffer
+ box
->x
, data
, box
->width
);
192 assert(rbuf
->b
.user_ptr
== NULL
);
194 map
= rws
->buffer_map(rws
, rbuf
->buf
, r300
->cs
,
195 PIPE_TRANSFER_WRITE
| PIPE_TRANSFER_DISCARD
| usage
);
197 memcpy(map
+ box
->x
, data
, box
->width
);
199 rws
->buffer_unmap(rws
, rbuf
->buf
);
202 static const struct u_resource_vtbl r300_buffer_vtbl
=
204 u_default_resource_get_handle
, /* get_handle */
205 r300_buffer_destroy
, /* resource_destroy */
206 r300_buffer_is_referenced_by_cs
, /* is_buffer_referenced */
207 r300_buffer_get_transfer
, /* get_transfer */
208 r300_buffer_transfer_destroy
, /* transfer_destroy */
209 r300_buffer_transfer_map
, /* transfer_map */
210 r300_buffer_transfer_flush_region
, /* transfer_flush_region */
211 r300_buffer_transfer_unmap
, /* transfer_unmap */
212 r300_buffer_transfer_inline_write
/* transfer_inline_write */
215 struct pipe_resource
*r300_buffer_create(struct pipe_screen
*screen
,
216 const struct pipe_resource
*templ
)
218 struct r300_screen
*r300screen
= r300_screen(screen
);
219 struct r300_buffer
*rbuf
;
220 unsigned alignment
= 16;
222 rbuf
= util_slab_alloc(&r300screen
->pool_buffers
);
224 rbuf
->magic
= R300_BUFFER_MAGIC
;
226 rbuf
->b
.b
.b
= *templ
;
227 rbuf
->b
.b
.vtbl
= &r300_buffer_vtbl
;
228 pipe_reference_init(&rbuf
->b
.b
.b
.reference
, 1);
229 rbuf
->b
.b
.b
.screen
= screen
;
230 rbuf
->b
.user_ptr
= NULL
;
231 rbuf
->domain
= R300_DOMAIN_GTT
;
233 rbuf
->constant_buffer
= NULL
;
235 /* Alloc constant buffers in RAM. */
236 if (templ
->bind
& PIPE_BIND_CONSTANT_BUFFER
) {
237 rbuf
->constant_buffer
= MALLOC(templ
->width0
);
242 r300screen
->rws
->buffer_create(r300screen
->rws
,
243 rbuf
->b
.b
.b
.width0
, alignment
,
244 rbuf
->b
.b
.b
.bind
, rbuf
->b
.b
.b
.usage
,
247 r300screen
->rws
->buffer_get_cs_handle(r300screen
->rws
, rbuf
->buf
);
250 util_slab_free(&r300screen
->pool_buffers
, rbuf
);
257 struct pipe_resource
*r300_user_buffer_create(struct pipe_screen
*screen
,
258 void *ptr
, unsigned size
,
261 struct r300_screen
*r300screen
= r300_screen(screen
);
262 struct r300_buffer
*rbuf
;
264 rbuf
= util_slab_alloc(&r300screen
->pool_buffers
);
266 rbuf
->magic
= R300_BUFFER_MAGIC
;
268 pipe_reference_init(&rbuf
->b
.b
.b
.reference
, 1);
269 rbuf
->b
.b
.b
.screen
= screen
;
270 rbuf
->b
.b
.b
.target
= PIPE_BUFFER
;
271 rbuf
->b
.b
.b
.format
= PIPE_FORMAT_R8_UNORM
;
272 rbuf
->b
.b
.b
.usage
= PIPE_USAGE_IMMUTABLE
;
273 rbuf
->b
.b
.b
.bind
= bind
;
274 rbuf
->b
.b
.b
.width0
= ~0;
275 rbuf
->b
.b
.b
.height0
= 1;
276 rbuf
->b
.b
.b
.depth0
= 1;
277 rbuf
->b
.b
.b
.array_size
= 1;
278 rbuf
->b
.b
.b
.flags
= 0;
279 rbuf
->b
.b
.vtbl
= &r300_buffer_vtbl
;
280 rbuf
->b
.user_ptr
= ptr
;
281 rbuf
->domain
= R300_DOMAIN_GTT
;
283 rbuf
->constant_buffer
= NULL
;