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/*
* Copyright 2010 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Dave Airlie <airlied@redhat.com>
*/
#include <util/u_index_modify.h>
#include "util/u_inlines.h"
#include "util/u_upload_mgr.h"
#include "r600_pipe.h"
void r600_translate_index_buffer(struct r600_pipe_context *r600,
struct pipe_resource **index_buffer,
unsigned *index_size,
unsigned *start, unsigned count)
{
struct pipe_resource *out_buffer = NULL;
unsigned out_offset;
void *ptr;
boolean flushed;
switch (*index_size) {
case 1:
u_upload_alloc(r600->upload_ib, 0, count * 2,
&out_offset, &out_buffer, &flushed, &ptr);
util_shorten_ubyte_elts_to_userptr(
&r600->context, *index_buffer, 0, *start, count, ptr);
pipe_resource_reference(index_buffer, out_buffer);
*index_size = 2;
*start = out_offset / 2;
break;
}
}
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