1 /****************************************************************************
2 * Copyright (C) 2015 Intel Corporation. All Rights Reserved.
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * 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 NONINFRINGEMENT. IN NO EVENT SHALL
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20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 ***************************************************************************/
27 struct swr_scratch_space
{
29 unsigned int current_size
;
30 /* TODO XXX: Add a fence for wrap condition. */
35 struct swr_scratch_buffers
{
36 struct swr_scratch_space vs_constants
;
37 struct swr_scratch_space fs_constants
;
38 struct swr_scratch_space vertex_buffer
;
39 struct swr_scratch_space index_buffer
;
44 * swr_copy_to_scratch_space
45 * Copies size bytes of user_buffer into the scratch ring buffer.
46 * Used to store temporary data such as client arrays and constants.
49 * space ptr to scratch pool (vs_constants, fs_constants)
50 * user_buffer, data to copy into scratch space
53 * pointer to data copied to scratch space.
55 void *swr_copy_to_scratch_space(struct swr_context
*ctx
,
56 struct swr_scratch_space
*space
,
57 const void *user_buffer
,
60 void swr_init_scratch_buffers(struct swr_context
*ctx
);
61 void swr_destroy_scratch_buffers(struct swr_context
*ctx
);