ref: 5d91a1e0ae6bbe36005a70cdc3f91b8fbbc51e92
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" #if CONFIG_LOSSLESS #include "vp9/decoder/vp9_dequantize.h" #endif 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