1 /* 2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include "vpx_config.h" 12 #include "vp8_rtcd.h" 13 #include "vpx_mem/vpx_mem.h" 14 15 void vp8_dequant_idct_add_y_block_c(short *q, short *dq, unsigned char *dst, 16 int stride, char *eobs) { 17 int i, j; 18 19 for (i = 0; i < 4; ++i) { 20 for (j = 0; j < 4; ++j) { 21 if (*eobs++ > 1) { 22 vp8_dequant_idct_add_c(q, dq, dst, stride); 23 } else { 24 vp8_dc_only_idct_add_c(q[0] * dq[0], dst, stride, dst, stride); 25 memset(q, 0, 2 * sizeof(q[0])); 26 } 27 28 q += 16; 29 dst += 4; 30 } 31 32 dst += 4 * stride - 16; 33 } 34 } 35 36 void vp8_dequant_idct_add_uv_block_c(short *q, short *dq, unsigned char *dst_u, 37 unsigned char *dst_v, int stride, 38 char *eobs) { 39 int i, j; 40 41 for (i = 0; i < 2; ++i) { 42 for (j = 0; j < 2; ++j) { 43 if (*eobs++ > 1) { 44 vp8_dequant_idct_add_c(q, dq, dst_u, stride); 45 } else { 46 vp8_dc_only_idct_add_c(q[0] * dq[0], dst_u, stride, dst_u, stride); 47 memset(q, 0, 2 * sizeof(q[0])); 48 } 49 50 q += 16; 51 dst_u += 4; 52 } 53 54 dst_u += 4 * stride - 8; 55 } 56 57 for (i = 0; i < 2; ++i) { 58 for (j = 0; j < 2; ++j) { 59 if (*eobs++ > 1) { 60 vp8_dequant_idct_add_c(q, dq, dst_v, stride); 61 } else { 62 vp8_dc_only_idct_add_c(q[0] * dq[0], dst_v, stride, dst_v, stride); 63 memset(q, 0, 2 * sizeof(q[0])); 64 } 65 66 q += 16; 67 dst_v += 4; 68 } 69 70 dst_v += 4 * stride - 8; 71 } 72 } 73
