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"
27 void util_shorten_ubyte_elts(struct pipe_context
*context
,
28 struct pipe_resource
**elts
,
33 struct pipe_screen
* screen
= context
->screen
;
34 struct pipe_resource
* new_elts
;
35 unsigned char *in_map
;
36 unsigned short *out_map
;
37 struct pipe_transfer
*src_transfer
, *dst_transfer
;
40 new_elts
= pipe_buffer_create(screen
,
41 PIPE_BIND_INDEX_BUFFER
,
44 in_map
= pipe_buffer_map(context
, *elts
, PIPE_TRANSFER_READ
, &src_transfer
);
45 out_map
= pipe_buffer_map(context
, new_elts
, PIPE_TRANSFER_WRITE
, &dst_transfer
);
49 for (i
= 0; i
< count
; i
++) {
50 *out_map
= (unsigned short)(*in_map
+ index_bias
);
55 pipe_buffer_unmap(context
, *elts
, src_transfer
);
56 pipe_buffer_unmap(context
, new_elts
, dst_transfer
);
61 void util_rebuild_ushort_elts(struct pipe_context
*context
,
62 struct pipe_resource
**elts
,
64 unsigned start
, unsigned count
)
66 struct pipe_transfer
*in_transfer
= NULL
;
67 struct pipe_transfer
*out_transfer
= NULL
;
68 struct pipe_resource
*new_elts
;
69 unsigned short *in_map
;
70 unsigned short *out_map
;
73 new_elts
= pipe_buffer_create(context
->screen
,
74 PIPE_BIND_INDEX_BUFFER
,
77 in_map
= pipe_buffer_map(context
, *elts
,
78 PIPE_TRANSFER_READ
, &in_transfer
);
79 out_map
= pipe_buffer_map(context
, new_elts
,
80 PIPE_TRANSFER_WRITE
, &out_transfer
);
83 for (i
= 0; i
< count
; i
++) {
84 *out_map
= (unsigned short)(*in_map
+ index_bias
);
89 pipe_buffer_unmap(context
, *elts
, in_transfer
);
90 pipe_buffer_unmap(context
, new_elts
, out_transfer
);
95 void util_rebuild_uint_elts(struct pipe_context
*context
,
96 struct pipe_resource
**elts
,
98 unsigned start
, unsigned count
)
100 struct pipe_transfer
*in_transfer
= NULL
;
101 struct pipe_transfer
*out_transfer
= NULL
;
102 struct pipe_resource
*new_elts
;
103 unsigned int *in_map
;
104 unsigned int *out_map
;
107 new_elts
= pipe_buffer_create(context
->screen
,
108 PIPE_BIND_INDEX_BUFFER
,
111 in_map
= pipe_buffer_map(context
, *elts
,
112 PIPE_TRANSFER_READ
, &in_transfer
);
113 out_map
= pipe_buffer_map(context
, new_elts
,
114 PIPE_TRANSFER_WRITE
, &out_transfer
);
117 for (i
= 0; i
< count
; i
++) {
118 *out_map
= (unsigned int)(*in_map
+ index_bias
);
123 pipe_buffer_unmap(context
, *elts
, in_transfer
);
124 pipe_buffer_unmap(context
, new_elts
, out_transfer
);