1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* Copyright 2010 Marek Olšák <maraeo@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "pipe/p_context.h"
#include "util/u_index_modify.h"
#include "util/u_inlines.h"
/* Ubyte indices. */
void util_shorten_ubyte_elts_to_userptr(struct pipe_context *context,
const struct pipe_index_buffer *ib,
unsigned add_transfer_flags,
int index_bias,
unsigned start,
unsigned count,
void *out)
{
struct pipe_transfer *src_transfer = NULL;
const unsigned char *in_map;
unsigned short *out_map = out;
unsigned i;
if (ib->user_buffer) {
in_map = ib->user_buffer;
} else {
in_map = pipe_buffer_map(context, ib->buffer,
PIPE_TRANSFER_READ |
add_transfer_flags,
&src_transfer);
}
in_map += start;
for (i = 0; i < count; i++) {
*out_map = (unsigned short)(*in_map + index_bias);
in_map++;
out_map++;
}
if (src_transfer)
pipe_buffer_unmap(context, src_transfer);
}
/* Ushort indices. */
void util_rebuild_ushort_elts_to_userptr(struct pipe_context *context,
const struct pipe_index_buffer *ib,
unsigned add_transfer_flags,
int index_bias,
unsigned start, unsigned count,
void *out)
{
struct pipe_transfer *in_transfer = NULL;
const unsigned short *in_map;
unsigned short *out_map = out;
unsigned i;
if (ib->user_buffer) {
in_map = ib->user_buffer;
} else {
in_map = pipe_buffer_map(context, ib->buffer,
PIPE_TRANSFER_READ |
add_transfer_flags,
&in_transfer);
}
in_map += start;
for (i = 0; i < count; i++) {
*out_map = (unsigned short)(*in_map + index_bias);
in_map++;
out_map++;
}
if (in_transfer)
pipe_buffer_unmap(context, in_transfer);
}
/* Uint indices. */
void util_rebuild_uint_elts_to_userptr(struct pipe_context *context,
const struct pipe_index_buffer *ib,
unsigned add_transfer_flags,
int index_bias,
unsigned start, unsigned count,
void *out)
{
struct pipe_transfer *in_transfer = NULL;
const unsigned int *in_map;
unsigned int *out_map = out;
unsigned i;
if (ib->user_buffer) {
in_map = ib->user_buffer;
} else {
in_map = pipe_buffer_map(context, ib->buffer,
PIPE_TRANSFER_READ |
add_transfer_flags,
&in_transfer);
}
in_map += start;
for (i = 0; i < count; i++) {
*out_map = (unsigned int)(*in_map + index_bias);
in_map++;
out_map++;
}
if (in_transfer)
pipe_buffer_unmap(context, in_transfer);
}
|
