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 <airlied@redhat.com>
26 #include <util/u_index_modify.h>
27 #include "util/u_inlines.h"
28 #include "util/u_upload_mgr.h"
29 #include "r600_pipe.h"
32 void r600_translate_index_buffer(struct r600_pipe_context *r600,
33 struct pipe_resource **index_buffer,
35 unsigned *start, unsigned count)
37 struct pipe_resource *out_buffer = NULL;
42 switch (*index_size) {
44 u_upload_alloc(r600->vbuf_mgr->uploader, 0, count * 2,
45 &out_offset, &out_buffer, &flushed, &ptr);
47 util_shorten_ubyte_elts_to_userptr(
48 &r600->context, *index_buffer, 0, *start, count, ptr);
50 pipe_resource_reference(index_buffer, out_buffer);
51 pipe_resource_reference(&out_buffer, NULL);
53 *start = out_offset / 2;