2 * Copyright 2010 Marek Olšák <maraeo@gmail.com>
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 #include "r300_context.h"
24 #include "util/u_index_modify.h"
25 #include "util/u_upload_mgr.h"
28 void r300_translate_index_buffer(struct r300_context
*r300
,
29 struct pipe_resource
**index_buffer
,
30 unsigned *index_size
, unsigned index_offset
,
31 unsigned *start
, unsigned count
)
33 struct pipe_resource
*out_buffer
= NULL
;
38 switch (*index_size
) {
40 u_upload_alloc(r300
->vbuf_mgr
->uploader
, 0, count
* 2,
41 &out_offset
, &out_buffer
, &flushed
, &ptr
);
43 util_shorten_ubyte_elts_to_userptr(
44 &r300
->context
, *index_buffer
, index_offset
,
48 pipe_resource_reference(index_buffer
, out_buffer
);
50 *start
= out_offset
/ 2;
51 r300
->validate_buffers
= TRUE
;
56 u_upload_alloc(r300
->vbuf_mgr
->uploader
, 0, count
* 2,
57 &out_offset
, &out_buffer
, &flushed
, &ptr
);
59 util_rebuild_ushort_elts_to_userptr(&r300
->context
, *index_buffer
,
64 pipe_resource_reference(index_buffer
, out_buffer
);
65 *start
= out_offset
/ 2;
66 r300
->validate_buffers
= TRUE
;
72 u_upload_alloc(r300
->vbuf_mgr
->uploader
, 0, count
* 4,
73 &out_offset
, &out_buffer
, &flushed
, &ptr
);
75 util_rebuild_uint_elts_to_userptr(&r300
->context
, *index_buffer
,
80 pipe_resource_reference(index_buffer
, out_buffer
);
81 *start
= out_offset
/ 4;
82 r300
->validate_buffers
= TRUE
;