ref: bcaba2e5cb194bbf2b7cc1b72834e1439fcbae60
dir: /vp8/decoder/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 "vpx_ports/config.h"
#include "vp8/common/idct.h"
#include "dequantize.h"
void vp8_dequant_dc_idct_add_c(short *input, short *dq, unsigned char *pred,
unsigned char *dest, int pitch, int stride,
int Dc);
void vp8_dequant_idct_add_c(short *input, short *dq, unsigned char *pred,
unsigned char *dest, int pitch, int stride);
void vp8_dc_only_idct_add_c(short input_dc, unsigned char *pred_ptr,
unsigned char *dst_ptr, int pitch, int stride);
#if CONFIG_LOSSLESS
void vp8_dequant_idct_add_lossless_c(short *input, short *dq, unsigned char *pred,
unsigned char *dest, int pitch, int stride);
void vp8_dc_only_idct_add_lossless_c(short input_dc, unsigned char *pred_ptr,
unsigned char *dst_ptr, int pitch, int stride);
#endif
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;
}
}
void vp8_dequant_dc_idct_add_y_block_8x8_c
(short *q, short *dq, unsigned char *pre,
unsigned char *dst, int stride, char *eobs, short *dc, MACROBLOCKD *xd) {
vp8_dequant_dc_idct_add_8x8_c(q, dq, pre, dst, 16, stride, dc[0]);
vp8_dequant_dc_idct_add_8x8_c(&q[64], dq, pre + 8, dst + 8, 16, stride, dc[1]);
vp8_dequant_dc_idct_add_8x8_c(&q[128], dq, pre + 8 * 16, dst + 8 * stride, 16, stride, dc[4]);
vp8_dequant_dc_idct_add_8x8_c(&q[192], dq, pre + 8 * 16 + 8, dst + 8 * stride + 8, 16, stride, dc[8]);
}
#if CONFIG_SUPERBLOCKS
void vp8_dequant_dc_idct_add_y_block_8x8_inplace_c
(short *q, short *dq,
unsigned char *dst, int stride, char *eobs, short *dc, MACROBLOCKD *xd) {
vp8_dequant_dc_idct_add_8x8_c(q, dq, dst, dst, stride, stride, dc[0]);
vp8_dequant_dc_idct_add_8x8_c(&q[64], dq, dst + 8, dst + 8, stride, stride, dc[1]);
vp8_dequant_dc_idct_add_8x8_c(&q[128], dq, dst + 8 * stride, dst + 8 * stride, stride, stride, dc[4]);
vp8_dequant_dc_idct_add_8x8_c(&q[192], dq, dst + 8 * stride + 8, dst + 8 * stride + 8, stride, stride, dc[8]);
}
#endif
void vp8_dequant_idct_add_y_block_8x8_c
(short *q, short *dq, unsigned char *pre,
unsigned char *dst, int stride, char *eobs, MACROBLOCKD *xd) {
unsigned char *origdest = dst;
unsigned char *origpred = pre;
vp8_dequant_idct_add_8x8_c(q, dq, pre, dst, 16, stride);
vp8_dequant_idct_add_8x8_c(&q[64], dq, origpred + 8, origdest + 8, 16, stride);
vp8_dequant_idct_add_8x8_c(&q[128], dq, origpred + 8 * 16, origdest + 8 * stride, 16, stride);
vp8_dequant_idct_add_8x8_c(&q[192], dq, origpred + 8 * 16 + 8, origdest + 8 * stride + 8, 16, stride);
}
void vp8_dequant_idct_add_uv_block_8x8_c
(short *q, short *dq, unsigned char *pre,
unsigned char *dstu, unsigned char *dstv, int stride, char *eobs, MACROBLOCKD *xd) {
vp8_dequant_idct_add_8x8_c(q, dq, pre, dstu, 8, stride);
q += 64;
pre += 64;
vp8_dequant_idct_add_8x8_c(q, dq, pre, dstv, 8, stride);
}
#if CONFIG_SUPERBLOCKS
void vp8_dequant_idct_add_uv_block_8x8_inplace_c
(short *q, short *dq,
unsigned char *dstu, unsigned char *dstv, int stride, char *eobs, MACROBLOCKD *xd) {
vp8_dequant_idct_add_8x8_c(q, dq, dstu, dstu, stride, stride);
q += 64;
vp8_dequant_idct_add_8x8_c(q, dq, dstv, dstv, stride, stride);
}
#endif
#if CONFIG_LOSSLESS
void vp8_dequant_dc_idct_add_y_block_lossless_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_lossless_c(q, dq, pre, dst, 16, stride, dc[0]);
else
vp8_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 vp8_dequant_idct_add_y_block_lossless_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_lossless_c(q, dq, pre, dst, 16, stride);
else {
vp8_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 vp8_dequant_idct_add_uv_block_lossless_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_lossless_c(q, dq, pre, dstu, 8, stride);
else {
vp8_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)
vp8_dequant_idct_add_lossless_c(q, dq, pre, dstv, 8, stride);
else {
vp8_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