c6b9039fd9
Approximate the Google style guide[1] so that that there's a written document to follow and tools to check compliance[2]. [1]: http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml [2]: http://google-styleguide.googlecode.com/svn/trunk/cpplint/cpplint.py Change-Id: Idf40e3d8dddcc72150f6af127b13e5dab838685f
247 lines
6.5 KiB
C
247 lines
6.5 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vpx_ports/config.h"
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#include "vp8/common/idct.h"
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#include "dequantize.h"
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void vp8_dequant_dc_idct_add_c(short *input, short *dq, unsigned char *pred,
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unsigned char *dest, int pitch, int stride,
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int Dc);
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void vp8_dequant_idct_add_c(short *input, short *dq, unsigned char *pred,
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unsigned char *dest, int pitch, int stride);
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void vp8_dc_only_idct_add_c(short input_dc, unsigned char *pred_ptr,
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unsigned char *dst_ptr, int pitch, int stride);
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#if CONFIG_LOSSLESS
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void vp8_dequant_idct_add_lossless_c(short *input, short *dq, unsigned char *pred,
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unsigned char *dest, int pitch, int stride);
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void vp8_dc_only_idct_add_lossless_c(short input_dc, unsigned char *pred_ptr,
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unsigned char *dst_ptr, int pitch, int stride);
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#endif
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void vp8_dequant_dc_idct_add_y_block_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs, short *dc) {
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int i, j;
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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if (*eobs++ > 1)
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vp8_dequant_dc_idct_add_c(q, dq, pre, dst, 16, stride, dc[0]);
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else
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vp8_dc_only_idct_add_c(dc[0], pre, dst, 16, stride);
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q += 16;
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pre += 4;
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dst += 4;
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dc++;
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}
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pre += 64 - 16;
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dst += 4 * stride - 16;
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}
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}
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void vp8_dequant_idct_add_y_block_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs) {
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int i, j;
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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if (*eobs++ > 1)
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vp8_dequant_idct_add_c(q, dq, pre, dst, 16, stride);
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else {
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vp8_dc_only_idct_add_c(q[0]*dq[0], pre, dst, 16, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dst += 4;
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}
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pre += 64 - 16;
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dst += 4 * stride - 16;
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}
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}
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void vp8_dequant_idct_add_uv_block_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dstu, unsigned char *dstv, int stride, char *eobs) {
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int i, j;
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for (i = 0; i < 2; i++) {
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for (j = 0; j < 2; j++) {
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if (*eobs++ > 1)
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vp8_dequant_idct_add_c(q, dq, pre, dstu, 8, stride);
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else {
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vp8_dc_only_idct_add_c(q[0]*dq[0], pre, dstu, 8, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dstu += 4;
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}
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pre += 32 - 8;
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dstu += 4 * stride - 8;
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}
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for (i = 0; i < 2; i++) {
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for (j = 0; j < 2; j++) {
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if (*eobs++ > 1)
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vp8_dequant_idct_add_c(q, dq, pre, dstv, 8, stride);
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else {
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vp8_dc_only_idct_add_c(q[0]*dq[0], pre, dstv, 8, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dstv += 4;
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}
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pre += 32 - 8;
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dstv += 4 * stride - 8;
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}
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}
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void vp8_dequant_dc_idct_add_y_block_8x8_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs, short *dc, MACROBLOCKD *xd) {
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vp8_dequant_dc_idct_add_8x8_c(q, dq, pre, dst, 16, stride, dc[0]);
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vp8_dequant_dc_idct_add_8x8_c(&q[64], dq, pre + 8, dst + 8, 16, stride, dc[1]);
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vp8_dequant_dc_idct_add_8x8_c(&q[128], dq, pre + 8 * 16, dst + 8 * stride, 16, stride, dc[4]);
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vp8_dequant_dc_idct_add_8x8_c(&q[192], dq, pre + 8 * 16 + 8, dst + 8 * stride + 8, 16, stride, dc[8]);
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}
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void vp8_dequant_idct_add_y_block_8x8_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs, MACROBLOCKD *xd) {
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unsigned char *origdest = dst;
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unsigned char *origpred = pre;
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vp8_dequant_idct_add_8x8_c(q, dq, pre, dst, 16, stride);
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vp8_dequant_idct_add_8x8_c(&q[64], dq, origpred + 8, origdest + 8, 16, stride);
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vp8_dequant_idct_add_8x8_c(&q[128], dq, origpred + 8 * 16, origdest + 8 * stride, 16, stride);
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vp8_dequant_idct_add_8x8_c(&q[192], dq, origpred + 8 * 16 + 8, origdest + 8 * stride + 8, 16, stride);
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}
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void vp8_dequant_idct_add_uv_block_8x8_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dstu, unsigned char *dstv, int stride, char *eobs, MACROBLOCKD *xd) {
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vp8_dequant_idct_add_8x8_c(q, dq, pre, dstu, 8, stride);
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q += 64;
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pre += 64;
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vp8_dequant_idct_add_8x8_c(q, dq, pre, dstv, 8, stride);
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}
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#if CONFIG_LOSSLESS
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void vp8_dequant_dc_idct_add_y_block_lossless_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs, short *dc) {
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int i, j;
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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if (*eobs++ > 1)
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vp8_dequant_dc_idct_add_lossless_c(q, dq, pre, dst, 16, stride, dc[0]);
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else
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vp8_dc_only_inv_walsh_add_c(dc[0], pre, dst, 16, stride);
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q += 16;
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pre += 4;
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dst += 4;
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dc++;
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}
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pre += 64 - 16;
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dst += 4 * stride - 16;
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}
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}
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void vp8_dequant_idct_add_y_block_lossless_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs) {
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int i, j;
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for (i = 0; i < 4; i++) {
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for (j = 0; j < 4; j++) {
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if (*eobs++ > 1)
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vp8_dequant_idct_add_lossless_c(q, dq, pre, dst, 16, stride);
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else {
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vp8_dc_only_inv_walsh_add_c(q[0]*dq[0], pre, dst, 16, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dst += 4;
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}
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pre += 64 - 16;
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dst += 4 * stride - 16;
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}
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}
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void vp8_dequant_idct_add_uv_block_lossless_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dstu, unsigned char *dstv, int stride, char *eobs) {
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int i, j;
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for (i = 0; i < 2; i++) {
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for (j = 0; j < 2; j++) {
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if (*eobs++ > 1)
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vp8_dequant_idct_add_lossless_c(q, dq, pre, dstu, 8, stride);
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else {
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vp8_dc_only_inv_walsh_add_c(q[0]*dq[0], pre, dstu, 8, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dstu += 4;
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}
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pre += 32 - 8;
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dstu += 4 * stride - 8;
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}
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for (i = 0; i < 2; i++) {
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for (j = 0; j < 2; j++) {
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if (*eobs++ > 1)
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vp8_dequant_idct_add_lossless_c(q, dq, pre, dstv, 8, stride);
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else {
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vp8_dc_only_inv_walsh_add_c(q[0]*dq[0], pre, dstv, 8, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dstv += 4;
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}
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pre += 32 - 8;
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dstv += 4 * stride - 8;
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}
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}
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#endif
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