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 "pipe/p_context.h"
24 #include "util/u_index_modify.h"
25 #include "util/u_inlines.h"
29 void util_shorten_ubyte_elts_to_userptr(struct pipe_context
*context
,
30 const struct pipe_index_buffer
*ib
,
31 unsigned add_transfer_flags
,
37 struct pipe_transfer
*src_transfer
= NULL
;
38 const unsigned char *in_map
;
39 unsigned short *out_map
= out
;
42 if (ib
->user_buffer
) {
43 in_map
= ib
->user_buffer
;
45 in_map
= pipe_buffer_map(context
, ib
->buffer
,
52 for (i
= 0; i
< count
; i
++) {
53 *out_map
= (unsigned short)(*in_map
+ index_bias
);
59 pipe_buffer_unmap(context
, src_transfer
);
64 void util_rebuild_ushort_elts_to_userptr(struct pipe_context
*context
,
65 const struct pipe_index_buffer
*ib
,
66 unsigned add_transfer_flags
,
68 unsigned start
, unsigned count
,
71 struct pipe_transfer
*in_transfer
= NULL
;
72 const unsigned short *in_map
;
73 unsigned short *out_map
= out
;
76 if (ib
->user_buffer
) {
77 in_map
= ib
->user_buffer
;
79 in_map
= pipe_buffer_map(context
, ib
->buffer
,
86 for (i
= 0; i
< count
; i
++) {
87 *out_map
= (unsigned short)(*in_map
+ index_bias
);
93 pipe_buffer_unmap(context
, in_transfer
);
98 void util_rebuild_uint_elts_to_userptr(struct pipe_context
*context
,
99 const struct pipe_index_buffer
*ib
,
100 unsigned add_transfer_flags
,
102 unsigned start
, unsigned count
,
105 struct pipe_transfer
*in_transfer
= NULL
;
106 const unsigned int *in_map
;
107 unsigned int *out_map
= out
;
110 if (ib
->user_buffer
) {
111 in_map
= ib
->user_buffer
;
113 in_map
= pipe_buffer_map(context
, ib
->buffer
,
120 for (i
= 0; i
< count
; i
++) {
121 *out_map
= (unsigned int)(*in_map
+ index_bias
);
127 pipe_buffer_unmap(context
, in_transfer
);