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,
43 PIPE_TRANSFER_UNSYNCHRONIZED,
47 for (i = 0; i < count; i++) {
48 *out_map = (unsigned short)(*in_map + index_bias);
53 pipe_buffer_unmap(context, src_transfer);
56 void util_shorten_ubyte_elts(struct pipe_context *context,
57 struct pipe_resource **elts,
62 struct pipe_resource* new_elts;
63 unsigned short *out_map;
64 struct pipe_transfer *dst_transfer;
66 new_elts = pipe_buffer_create(context->screen,
67 PIPE_BIND_INDEX_BUFFER,
71 out_map = pipe_buffer_map(context, new_elts, PIPE_TRANSFER_WRITE,
73 util_shorten_ubyte_elts_to_userptr(context, *elts, index_bias,
74 start, count, out_map);
75 pipe_buffer_unmap(context, dst_transfer);
83 void util_rebuild_ushort_elts_to_userptr(struct pipe_context *context,
84 struct pipe_resource *elts,
86 unsigned start, unsigned count,
89 struct pipe_transfer *in_transfer = NULL;
90 unsigned short *in_map;
91 unsigned short *out_map = out;
94 in_map = pipe_buffer_map(context, elts,
96 PIPE_TRANSFER_UNSYNCHRONIZED,
100 for (i = 0; i < count; i++) {
101 *out_map = (unsigned short)(*in_map + index_bias);
106 pipe_buffer_unmap(context, in_transfer);
109 void util_rebuild_ushort_elts(struct pipe_context *context,
110 struct pipe_resource **elts,
112 unsigned start, unsigned count)
114 struct pipe_transfer *out_transfer = NULL;
115 struct pipe_resource *new_elts;
116 unsigned short *out_map;
118 new_elts = pipe_buffer_create(context->screen,
119 PIPE_BIND_INDEX_BUFFER,
123 out_map = pipe_buffer_map(context, new_elts,
124 PIPE_TRANSFER_WRITE, &out_transfer);
125 util_rebuild_ushort_elts_to_userptr(context, *elts, index_bias,
126 start, count, out_map);
127 pipe_buffer_unmap(context, out_transfer);
135 void util_rebuild_uint_elts_to_userptr(struct pipe_context *context,
136 struct pipe_resource *elts,
138 unsigned start, unsigned count,
141 struct pipe_transfer *in_transfer = NULL;
142 unsigned int *in_map;
143 unsigned int *out_map = out;
146 in_map = pipe_buffer_map(context, elts,
148 PIPE_TRANSFER_UNSYNCHRONIZED,
152 for (i = 0; i < count; i++) {
153 *out_map = (unsigned int)(*in_map + index_bias);
158 pipe_buffer_unmap(context, in_transfer);
161 void util_rebuild_uint_elts(struct pipe_context *context,
162 struct pipe_resource **elts,
164 unsigned start, unsigned count)
166 struct pipe_transfer *out_transfer = NULL;
167 struct pipe_resource *new_elts;
168 unsigned int *out_map;
170 new_elts = pipe_buffer_create(context->screen,
171 PIPE_BIND_INDEX_BUFFER,
175 out_map = pipe_buffer_map(context, new_elts,
176 PIPE_TRANSFER_WRITE, &out_transfer);
177 util_rebuild_uint_elts_to_userptr(context, *elts, index_bias,
178 start, count, out_map);
179 pipe_buffer_unmap(context, out_transfer);