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 struct pipe_resource
*elts
,
36 struct pipe_transfer
*src_transfer
;
37 unsigned char *in_map
;
38 unsigned short *out_map
= out
;
41 in_map
= pipe_buffer_map(context
, elts
, PIPE_TRANSFER_READ
, &src_transfer
);
44 for (i
= 0; i
< count
; i
++) {
45 *out_map
= (unsigned short)(*in_map
+ index_bias
);
50 pipe_buffer_unmap(context
, src_transfer
);
53 void util_shorten_ubyte_elts(struct pipe_context
*context
,
54 struct pipe_resource
**elts
,
59 struct pipe_resource
* new_elts
;
60 unsigned short *out_map
;
61 struct pipe_transfer
*dst_transfer
;
63 new_elts
= pipe_buffer_create(context
->screen
,
64 PIPE_BIND_INDEX_BUFFER
,
67 out_map
= pipe_buffer_map(context
, new_elts
, PIPE_TRANSFER_WRITE
,
69 util_shorten_ubyte_elts_to_userptr(context
, *elts
, index_bias
,
70 start
, count
, out_map
);
71 pipe_buffer_unmap(context
, dst_transfer
);
79 void util_rebuild_ushort_elts_to_userptr(struct pipe_context
*context
,
80 struct pipe_resource
*elts
,
82 unsigned start
, unsigned count
,
85 struct pipe_transfer
*in_transfer
= NULL
;
86 unsigned short *in_map
;
87 unsigned short *out_map
= out
;
90 in_map
= pipe_buffer_map(context
, elts
, PIPE_TRANSFER_READ
, &in_transfer
);
93 for (i
= 0; i
< count
; i
++) {
94 *out_map
= (unsigned short)(*in_map
+ index_bias
);
99 pipe_buffer_unmap(context
, in_transfer
);
102 void util_rebuild_ushort_elts(struct pipe_context
*context
,
103 struct pipe_resource
**elts
,
105 unsigned start
, unsigned count
)
107 struct pipe_transfer
*out_transfer
= NULL
;
108 struct pipe_resource
*new_elts
;
109 unsigned short *out_map
;
111 new_elts
= pipe_buffer_create(context
->screen
,
112 PIPE_BIND_INDEX_BUFFER
,
115 out_map
= pipe_buffer_map(context
, new_elts
,
116 PIPE_TRANSFER_WRITE
, &out_transfer
);
117 util_rebuild_ushort_elts_to_userptr(context
, *elts
, index_bias
,
118 start
, count
, out_map
);
119 pipe_buffer_unmap(context
, out_transfer
);
127 void util_rebuild_uint_elts_to_userptr(struct pipe_context
*context
,
128 struct pipe_resource
*elts
,
130 unsigned start
, unsigned count
,
133 struct pipe_transfer
*in_transfer
= NULL
;
134 unsigned int *in_map
;
135 unsigned int *out_map
= out
;
138 in_map
= pipe_buffer_map(context
, elts
, PIPE_TRANSFER_READ
, &in_transfer
);
141 for (i
= 0; i
< count
; i
++) {
142 *out_map
= (unsigned int)(*in_map
+ index_bias
);
147 pipe_buffer_unmap(context
, in_transfer
);
150 void util_rebuild_uint_elts(struct pipe_context
*context
,
151 struct pipe_resource
**elts
,
153 unsigned start
, unsigned count
)
155 struct pipe_transfer
*out_transfer
= NULL
;
156 struct pipe_resource
*new_elts
;
157 unsigned int *out_map
;
159 new_elts
= pipe_buffer_create(context
->screen
,
160 PIPE_BIND_INDEX_BUFFER
,
163 out_map
= pipe_buffer_map(context
, new_elts
,
164 PIPE_TRANSFER_WRITE
, &out_transfer
);
165 util_rebuild_uint_elts_to_userptr(context
, *elts
, index_bias
,
166 start
, count
, out_map
);
167 pipe_buffer_unmap(context
, out_transfer
);