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
|
/*
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "vpx_config.h"
#include "dequantize.h"
#include "vp8/common/idct.h"
#include "vpx_mem/vpx_mem.h"
void vp8_dequantize_b_c(BLOCKD *d)
{
int i;
short *DQ = d->dqcoeff;
short *Q = d->qcoeff;
short *DQC = d->dequant;
for (i = 0; i < 16; i++)
{
DQ[i] = Q[i] * DQC[i];
}
}
void vp8_dequant_idct_add_c(short *input, short *dq,
unsigned char *dest, int stride)
{
int i;
for (i = 0; i < 16; i++)
{
input[i] = dq[i] * input[i];
}
vp8_short_idct4x4llm_c(input, dest, stride, dest, stride);
vpx_memset(input, 0, 32);
}
void vp8_dequant_dc_idct_add_c(short *input, short *dq,
unsigned char *dest, int stride,
int Dc)
{
int i;
input[0] = (short)Dc;
for (i = 1; i < 16; i++)
{
input[i] = dq[i] * input[i];
}
vp8_short_idct4x4llm_c(input, dest, stride, dest, stride);
vpx_memset(input, 0, 32);
}
|
