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/*
* Copyright (c) 2010 The VP8 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_ports/config.h"
#include "idct.h"
#include "dequantize.h"
void vp8_dequant_dc_idct_add_y_block_c
(short *q, short *dq, unsigned char *pre,
unsigned char *dst, int stride, char *eobs, short *dc)
{
int i, j;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
if (*eobs++ > 1)
vp8_dequant_dc_idct_add_c (q, dq, pre, dst, 16, stride, dc[0]);
else
vp8_dc_only_idct_add_c (dc[0], pre, dst, 16, stride);
q += 16;
pre += 4;
dst += 4;
dc ++;
}
pre += 64 - 16;
dst += 4*stride - 16;
}
}
void vp8_dequant_idct_add_y_block_c
(short *q, short *dq, unsigned char *pre,
unsigned char *dst, int stride, char *eobs)
{
int i, j;
for (i = 0; i < 4; i++)
{
for (j = 0; j < 4; j++)
{
if (*eobs++ > 1)
vp8_dequant_idct_add_c (q, dq, pre, dst, 16, stride);
else
{
vp8_dc_only_idct_add_c (q[0]*dq[0], pre, dst, 16, stride);
((int *)q)[0] = 0;
}
q += 16;
pre += 4;
dst += 4;
}
pre += 64 - 16;
dst += 4*stride - 16;
}
}
void vp8_dequant_idct_add_uv_block_c
(short *q, short *dq, unsigned char *pre,
unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
{
int i, j;
for (i = 0; i < 2; i++)
{
for (j = 0; j < 2; j++)
{
if (*eobs++ > 1)
vp8_dequant_idct_add_c (q, dq, pre, dstu, 8, stride);
else
{
vp8_dc_only_idct_add_c (q[0]*dq[0], pre, dstu, 8, stride);
((int *)q)[0] = 0;
}
q += 16;
pre += 4;
dstu += 4;
}
pre += 32 - 8;
dstu += 4*stride - 8;
}
for (i = 0; i < 2; i++)
{
for (j = 0; j < 2; j++)
{
if (*eobs++ > 1)
vp8_dequant_idct_add_c (q, dq, pre, dstv, 8, stride);
else
{
vp8_dc_only_idct_add_c (q[0]*dq[0], pre, dstv, 8, stride);
((int *)q)[0] = 0;
}
q += 16;
pre += 4;
dstv += 4;
}
pre += 32 - 8;
dstv += 4*stride - 8;
}
}
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