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 "vpx_rtcd.h" 13 14 void vp8_dequant_idct_add_c(short *input, short *dq, 15 unsigned char *dest, int stride); 16 void vp8_dc_only_idct_add_c(short input_dc, unsigned char * pred, 17 int pred_stride, unsigned char *dst_ptr, 18 int dst_stride); 19 20 void vp8_dequant_idct_add_y_block_c 21 (short *q, short *dq, 22 unsigned char *dst, int stride, char *eobs) 23 { 24 int i, j; 25 26 for (i = 0; i < 4; i++) 27 { 28 for (j = 0; j < 4; j++) 29 { 30 if (*eobs++ > 1) 31 vp8_dequant_idct_add_c (q, dq, dst, stride); 32 else 33 { 34 vp8_dc_only_idct_add_c (q[0]*dq[0], dst, stride, dst, stride); 35 ((int *)q)[0] = 0; 36 } 37 38 q += 16; 39 dst += 4; 40 } 41 42 dst += 4*stride - 16; 43 } 44 } 45 46 void vp8_dequant_idct_add_uv_block_c 47 (short *q, short *dq, 48 unsigned char *dstu, unsigned char *dstv, int stride, char *eobs) 49 { 50 int i, j; 51 52 for (i = 0; i < 2; i++) 53 { 54 for (j = 0; j < 2; j++) 55 { 56 if (*eobs++ > 1) 57 vp8_dequant_idct_add_c (q, dq, dstu, stride); 58 else 59 { 60 vp8_dc_only_idct_add_c (q[0]*dq[0], dstu, stride, dstu, stride); 61 ((int *)q)[0] = 0; 62 } 63 64 q += 16; 65 dstu += 4; 66 } 67 68 dstu += 4*stride - 8; 69 } 70 71 for (i = 0; i < 2; i++) 72 { 73 for (j = 0; j < 2; j++) 74 { 75 if (*eobs++ > 1) 76 vp8_dequant_idct_add_c (q, dq, dstv, stride); 77 else 78 { 79 vp8_dc_only_idct_add_c (q[0]*dq[0], dstv, stride, dstv, stride); 80 ((int *)q)[0] = 0; 81 } 82 83 q += 16; 84 dstv += 4; 85 } 86 87 dstv += 4*stride - 8; 88 } 89 } 90
