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"
35 void r300_upload_index_buffer(struct r300_context
*r300
,
36 struct pipe_resource
**index_buffer
,
37 unsigned index_size
, unsigned *start
,
38 unsigned count
, const uint8_t *ptr
)
40 unsigned index_offset
;
44 u_upload_data(r300
->uploader
,
45 0, count
* index_size
,
46 ptr
+ (*start
* index_size
),
50 *start
= index_offset
/ index_size
;
53 static void r300_buffer_destroy(struct pipe_screen
*screen
,
54 struct pipe_resource
*buf
)
56 struct r300_resource
*rbuf
= r300_resource(buf
);
58 FREE(rbuf
->malloced_buffer
);
61 pb_reference(&rbuf
->buf
, NULL
);
66 static struct pipe_transfer
*
67 r300_buffer_get_transfer(struct pipe_context
*context
,
68 struct pipe_resource
*resource
,
71 const struct pipe_box
*box
)
73 struct r300_context
*r300
= r300_context(context
);
74 struct pipe_transfer
*transfer
=
75 util_slab_alloc(&r300
->pool_transfers
);
77 transfer
->resource
= resource
;
78 transfer
->level
= level
;
79 transfer
->usage
= usage
;
82 transfer
->layer_stride
= 0;
83 transfer
->data
= NULL
;
85 /* Note strides are zero, this is ok for buffers, but not for
86 * textures 2d & higher at least.
91 static void r300_buffer_transfer_destroy(struct pipe_context
*pipe
,
92 struct pipe_transfer
*transfer
)
94 struct r300_context
*r300
= r300_context(pipe
);
95 util_slab_free(&r300
->pool_transfers
, transfer
);
99 r300_buffer_transfer_map( struct pipe_context
*pipe
,
100 struct pipe_transfer
*transfer
)
102 struct r300_context
*r300
= r300_context(pipe
);
103 struct r300_screen
*r300screen
= r300_screen(pipe
->screen
);
104 struct radeon_winsys
*rws
= r300screen
->rws
;
105 struct r300_resource
*rbuf
= r300_resource(transfer
->resource
);
107 enum pipe_transfer_usage usage
;
109 if (rbuf
->malloced_buffer
)
110 return (uint8_t *) rbuf
->malloced_buffer
+ transfer
->box
.x
;
112 /* Buffers are never used for write, therefore mapping for read can be
114 usage
= transfer
->usage
;
115 if (!(usage
& PIPE_TRANSFER_WRITE
)) {
116 usage
|= PIPE_TRANSFER_UNSYNCHRONIZED
;
119 map
= rws
->buffer_map(rbuf
->cs_buf
, r300
->cs
, usage
);
124 return map
+ transfer
->box
.x
;
127 static void r300_buffer_transfer_unmap( struct pipe_context
*pipe
,
128 struct pipe_transfer
*transfer
)
133 static const struct u_resource_vtbl r300_buffer_vtbl
=
135 NULL
, /* get_handle */
136 r300_buffer_destroy
, /* resource_destroy */
137 r300_buffer_get_transfer
, /* get_transfer */
138 r300_buffer_transfer_destroy
, /* transfer_destroy */
139 r300_buffer_transfer_map
, /* transfer_map */
140 NULL
, /* transfer_flush_region */
141 r300_buffer_transfer_unmap
, /* transfer_unmap */
142 NULL
/* transfer_inline_write */
145 struct pipe_resource
*r300_buffer_create(struct pipe_screen
*screen
,
146 const struct pipe_resource
*templ
)
148 struct r300_screen
*r300screen
= r300_screen(screen
);
149 struct r300_resource
*rbuf
;
150 unsigned alignment
= 16;
152 rbuf
= MALLOC_STRUCT(r300_resource
);
155 rbuf
->b
.vtbl
= &r300_buffer_vtbl
;
156 pipe_reference_init(&rbuf
->b
.b
.reference
, 1);
157 rbuf
->b
.b
.screen
= screen
;
158 rbuf
->domain
= RADEON_DOMAIN_GTT
;
160 rbuf
->malloced_buffer
= NULL
;
162 /* Alloc constant buffers and SWTCL buffers in RAM. */
163 if (templ
->bind
& PIPE_BIND_CONSTANT_BUFFER
||
164 (!r300screen
->caps
.has_tcl
&&
165 (templ
->bind
& (PIPE_BIND_VERTEX_BUFFER
| PIPE_BIND_INDEX_BUFFER
)))) {
166 rbuf
->malloced_buffer
= MALLOC(templ
->width0
);
171 r300screen
->rws
->buffer_create(r300screen
->rws
,
172 rbuf
->b
.b
.width0
, alignment
,
173 rbuf
->b
.b
.bind
, rbuf
->domain
);
180 r300screen
->rws
->buffer_get_cs_handle(rbuf
->buf
);