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_index_buffer
*ib
,
36 struct pipe_transfer
*src_transfer
= NULL
;
37 const unsigned char *in_map
;
38 unsigned short *out_map
= out
;
41 if (ib
->user_buffer
) {
42 in_map
= ib
->user_buffer
;
44 in_map
= pipe_buffer_map(context
, ib
->buffer
,
46 PIPE_TRANSFER_UNSYNCHRONIZED
,
51 for (i
= 0; i
< count
; i
++) {
52 *out_map
= (unsigned short)(*in_map
+ index_bias
);
58 pipe_buffer_unmap(context
, src_transfer
);
61 void util_shorten_ubyte_elts(struct pipe_context
*context
,
62 struct pipe_index_buffer
*ib
,
63 struct pipe_resource
**out_buf
,
68 struct pipe_resource
* new_elts
;
69 unsigned short *out_map
;
70 struct pipe_transfer
*dst_transfer
;
72 new_elts
= pipe_buffer_create(context
->screen
,
73 PIPE_BIND_INDEX_BUFFER
,
77 out_map
= pipe_buffer_map(context
, new_elts
, PIPE_TRANSFER_WRITE
,
79 util_shorten_ubyte_elts_to_userptr(context
, ib
, index_bias
,
80 start
, count
, out_map
);
81 pipe_buffer_unmap(context
, dst_transfer
);
83 pipe_resource_reference(out_buf
, NULL
);
90 void util_rebuild_ushort_elts_to_userptr(struct pipe_context
*context
,
91 struct pipe_index_buffer
*ib
,
93 unsigned start
, unsigned count
,
96 struct pipe_transfer
*in_transfer
= NULL
;
97 const unsigned short *in_map
;
98 unsigned short *out_map
= out
;
101 if (ib
->user_buffer
) {
102 in_map
= ib
->user_buffer
;
104 in_map
= pipe_buffer_map(context
, ib
->buffer
,
106 PIPE_TRANSFER_UNSYNCHRONIZED
,
111 for (i
= 0; i
< count
; i
++) {
112 *out_map
= (unsigned short)(*in_map
+ index_bias
);
118 pipe_buffer_unmap(context
, in_transfer
);
121 void util_rebuild_ushort_elts(struct pipe_context
*context
,
122 struct pipe_index_buffer
*ib
,
123 struct pipe_resource
**out_buf
,
125 unsigned start
, unsigned count
)
127 struct pipe_transfer
*out_transfer
= NULL
;
128 struct pipe_resource
*new_elts
;
129 unsigned short *out_map
;
131 new_elts
= pipe_buffer_create(context
->screen
,
132 PIPE_BIND_INDEX_BUFFER
,
136 out_map
= pipe_buffer_map(context
, new_elts
,
137 PIPE_TRANSFER_WRITE
, &out_transfer
);
138 util_rebuild_ushort_elts_to_userptr(context
, ib
, index_bias
,
139 start
, count
, out_map
);
140 pipe_buffer_unmap(context
, out_transfer
);
142 pipe_resource_reference(out_buf
, NULL
);
149 void util_rebuild_uint_elts_to_userptr(struct pipe_context
*context
,
150 struct pipe_index_buffer
*ib
,
152 unsigned start
, unsigned count
,
155 struct pipe_transfer
*in_transfer
= NULL
;
156 const unsigned int *in_map
;
157 unsigned int *out_map
= out
;
160 if (ib
->user_buffer
) {
161 in_map
= ib
->user_buffer
;
163 in_map
= pipe_buffer_map(context
, ib
->buffer
,
165 PIPE_TRANSFER_UNSYNCHRONIZED
,
170 for (i
= 0; i
< count
; i
++) {
171 *out_map
= (unsigned int)(*in_map
+ index_bias
);
177 pipe_buffer_unmap(context
, in_transfer
);
180 void util_rebuild_uint_elts(struct pipe_context
*context
,
181 struct pipe_index_buffer
*ib
,
182 struct pipe_resource
**out_buf
,
184 unsigned start
, unsigned count
)
186 struct pipe_transfer
*out_transfer
= NULL
;
187 struct pipe_resource
*new_elts
;
188 unsigned int *out_map
;
190 new_elts
= pipe_buffer_create(context
->screen
,
191 PIPE_BIND_INDEX_BUFFER
,
195 out_map
= pipe_buffer_map(context
, new_elts
,
196 PIPE_TRANSFER_WRITE
, &out_transfer
);
197 util_rebuild_uint_elts_to_userptr(context
, ib
, index_bias
,
198 start
, count
, out_map
);
199 pipe_buffer_unmap(context
, out_transfer
);
201 pipe_resource_reference(out_buf
, NULL
);