ref: fcccbcbb395ce4cf31b54ce1245cc28e5e3ef4c1
dir: /vp9/decoder/vp9_idct_blk.c/
/*
* 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 "vp9_rtcd.h"
#include "vp9/common/vp9_blockd.h"
void vp9_dequant_dc_idct_add_y_block_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dst,
int stride, unsigned short *eobs,
const short *dc) {
int i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
if (*eobs++ > 1)
vp9_dequant_dc_idct_add_c(q, dq, pre, dst, 16, stride, dc[0]);
else
vp9_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;
}
}
#if CONFIG_SUPERBLOCKS
void vp9_dequant_dc_idct_add_y_block_4x4_inplace_c(short *q, const short *dq,
unsigned char *dst,
int stride,
unsigned short *eobs,
const short *dc,
MACROBLOCKD *xd) {
int i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
if (*eobs++ > 1)
vp9_dequant_dc_idct_add_c(q, dq, dst, dst, stride, stride, dc[0]);
else
vp9_dc_only_idct_add_c(dc[0], dst, dst, stride, stride);
q += 16;
dst += 4;
dc++;
}
dst += 4 * stride - 16;
}
}
#endif
void vp9_dequant_idct_add_y_block_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dst,
int stride, unsigned short *eobs) {
int i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
if (*eobs++ > 1)
vp9_dequant_idct_add_c(q, dq, pre, dst, 16, stride);
else {
vp9_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 vp9_dequant_idct_add_uv_block_c(short *q, const short *dq,
unsigned char *pre, unsigned char *dstu,
unsigned char *dstv, int stride,
unsigned short *eobs) {
int i, j;
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++) {
if (*eobs++ > 1)
vp9_dequant_idct_add_c(q, dq, pre, dstu, 8, stride);
else {
vp9_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)
vp9_dequant_idct_add_c(q, dq, pre, dstv, 8, stride);
else {
vp9_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;
}
}
#if CONFIG_SUPERBLOCKS
void vp9_dequant_idct_add_uv_block_4x4_inplace_c(short *q, const short *dq,
unsigned char *dstu,
unsigned char *dstv,
int stride,
unsigned short *eobs,
MACROBLOCKD *xd) {
int i, j;
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++) {
if (*eobs++ > 1) {
vp9_dequant_idct_add_c(q, dq, dstu, dstu, stride, stride);
} else {
vp9_dc_only_idct_add_c(q[0]*dq[0], dstu, dstu, stride, stride);
((int *)q)[0] = 0;
}
q += 16;
dstu += 4;
}
dstu += 4 * stride - 8;
}
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++) {
if (*eobs++ > 1) {
vp9_dequant_idct_add_c(q, dq, dstv, dstv, stride, stride);
} else {
vp9_dc_only_idct_add_c(q[0]*dq[0], dstv, dstv, stride, stride);
((int *)q)[0] = 0;
}
q += 16;
dstv += 4;
}
dstv += 4 * stride - 8;
}
}
#endif
void vp9_dequant_dc_idct_add_y_block_8x8_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dst,
int stride, unsigned short *eobs,
const short *dc,
MACROBLOCKD *xd) {
q[0] = dc[0];
vp9_dequant_idct_add_8x8_c(q, dq, pre, dst, 16, stride, 1, xd->eobs[0]);
q[64] = dc[1];
vp9_dequant_idct_add_8x8_c(&q[64], dq, pre + 8, dst + 8, 16, stride, 1,
xd->eobs[4]);
q[128] = dc[4];
vp9_dequant_idct_add_8x8_c(&q[128], dq, pre + 8 * 16,
dst + 8 * stride, 16, stride, 1, xd->eobs[8]);
q[192] = dc[8];
vp9_dequant_idct_add_8x8_c(&q[192], dq, pre + 8 * 16 + 8,
dst + 8 * stride + 8, 16, stride, 1,
xd->eobs[12]);
}
#if CONFIG_SUPERBLOCKS
void vp9_dequant_dc_idct_add_y_block_8x8_inplace_c(short *q, const short *dq,
unsigned char *dst,
int stride,
unsigned short *eobs,
const short *dc,
MACROBLOCKD *xd) {
q[0] = dc[0];
vp9_dequant_idct_add_8x8_c(q, dq, dst, dst, stride, stride, 1, xd->eobs[0]);
q[64] = dc[1];
vp9_dequant_idct_add_8x8_c(&q[64], dq, dst + 8,
dst + 8, stride, stride, 1, xd->eobs[4]);
q[128] = dc[4];
vp9_dequant_idct_add_8x8_c(&q[128], dq, dst + 8 * stride,
dst + 8 * stride, stride, stride, 1,
xd->eobs[8]);
q[192] = dc[8];
vp9_dequant_idct_add_8x8_c(&q[192], dq, dst + 8 * stride + 8,
dst + 8 * stride + 8, stride, stride, 1,
xd->eobs[12]);
}
#endif
void vp9_dequant_idct_add_y_block_8x8_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dst,
int stride, unsigned short *eobs,
MACROBLOCKD *xd) {
unsigned char *origdest = dst;
unsigned char *origpred = pre;
vp9_dequant_idct_add_8x8_c(q, dq, pre, dst, 16, stride, 0, xd->eobs[0]);
vp9_dequant_idct_add_8x8_c(&q[64], dq, origpred + 8,
origdest + 8, 16, stride, 0, xd->eobs[4]);
vp9_dequant_idct_add_8x8_c(&q[128], dq, origpred + 8 * 16,
origdest + 8 * stride, 16, stride, 0, xd->eobs[8]);
vp9_dequant_idct_add_8x8_c(&q[192], dq, origpred + 8 * 16 + 8,
origdest + 8 * stride + 8, 16, stride, 0,
xd->eobs[12]);
}
void vp9_dequant_idct_add_uv_block_8x8_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dstu,
unsigned char *dstv,
int stride, unsigned short *eobs,
MACROBLOCKD *xd) {
vp9_dequant_idct_add_8x8_c(q, dq, pre, dstu, 8, stride, 0, xd->eobs[16]);
q += 64;
pre += 64;
vp9_dequant_idct_add_8x8_c(q, dq, pre, dstv, 8, stride, 0, xd->eobs[20]);
}
#if CONFIG_SUPERBLOCKS
void vp9_dequant_idct_add_uv_block_8x8_inplace_c(short *q, const short *dq,
unsigned char *dstu,
unsigned char *dstv,
int stride,
unsigned short *eobs,
MACROBLOCKD *xd) {
vp9_dequant_idct_add_8x8_c(q, dq, dstu, dstu, stride, stride, 0,
xd->eobs[16]);
q += 64;
vp9_dequant_idct_add_8x8_c(q, dq, dstv, dstv, stride, stride, 0,
xd->eobs[20]);
}
#endif
#if CONFIG_LOSSLESS
void vp9_dequant_dc_idct_add_y_block_lossless_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dst,
int stride,
unsigned short *eobs,
const short *dc) {
int i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
if (*eobs++ > 1)
vp9_dequant_dc_idct_add_lossless_c(q, dq, pre, dst, 16, stride, dc[0]);
else
vp9_dc_only_inv_walsh_add_c(dc[0], pre, dst, 16, stride);
q += 16;
pre += 4;
dst += 4;
dc++;
}
pre += 64 - 16;
dst += 4 * stride - 16;
}
}
void vp9_dequant_idct_add_y_block_lossless_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dst,
int stride, unsigned short *eobs) {
int i, j;
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
if (*eobs++ > 1)
vp9_dequant_idct_add_lossless_c(q, dq, pre, dst, 16, stride);
else {
vp9_dc_only_inv_walsh_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 vp9_dequant_idct_add_uv_block_lossless_c(short *q, const short *dq,
unsigned char *pre,
unsigned char *dstu,
unsigned char *dstv,
int stride,
unsigned short *eobs) {
int i, j;
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++) {
if (*eobs++ > 1)
vp9_dequant_idct_add_lossless_c(q, dq, pre, dstu, 8, stride);
else {
vp9_dc_only_inv_walsh_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)
vp9_dequant_idct_add_lossless_c(q, dq, pre, dstv, 8, stride);
else {
vp9_dc_only_inv_walsh_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;
}
}
#endif