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_ports/config.h" 12 #include "vp8/common/idct.h" 13 #include "vp8/decoder/dequantize.h" 14 15 void vp8_dequant_dc_idct_add_y_block_v6 16 (short *q, short *dq, unsigned char *pre, 17 unsigned char *dst, int stride, char *eobs, short *dc) 18 { 19 int i; 20 21 for (i = 0; i < 4; i++) 22 { 23 if (eobs[0] > 1) 24 vp8_dequant_dc_idct_add_v6 (q, dq, pre, dst, 16, stride, dc[0]); 25 else 26 vp8_dc_only_idct_add_v6 (dc[0], pre, dst, 16, stride); 27 28 if (eobs[1] > 1) 29 vp8_dequant_dc_idct_add_v6 (q+16, dq, pre+4, dst+4, 16, stride, dc[1]); 30 else 31 vp8_dc_only_idct_add_v6 (dc[1], pre+4, dst+4, 16, stride); 32 33 if (eobs[2] > 1) 34 vp8_dequant_dc_idct_add_v6 (q+32, dq, pre+8, dst+8, 16, stride, dc[2]); 35 else 36 vp8_dc_only_idct_add_v6 (dc[2], pre+8, dst+8, 16, stride); 37 38 if (eobs[3] > 1) 39 vp8_dequant_dc_idct_add_v6 (q+48, dq, pre+12, dst+12, 16, stride, dc[3]); 40 else 41 vp8_dc_only_idct_add_v6 (dc[3], pre+12, dst+12, 16, stride); 42 43 q += 64; 44 dc += 4; 45 pre += 64; 46 dst += 4*stride; 47 eobs += 4; 48 } 49 } 50 51 void vp8_dequant_idct_add_y_block_v6 52 (short *q, short *dq, unsigned char *pre, 53 unsigned char *dst, int stride, char *eobs) 54 { 55 int i; 56 57 for (i = 0; i < 4; i++) 58 { 59 if (eobs[0] > 1) 60 vp8_dequant_idct_add_v6 (q, dq, pre, dst, 16, stride); 61 else 62 { 63 vp8_dc_only_idct_add_v6 (q[0]*dq[0], pre, dst, 16, stride); 64 ((int *)q)[0] = 0; 65 } 66 67 if (eobs[1] > 1) 68 vp8_dequant_idct_add_v6 (q+16, dq, pre+4, dst+4, 16, stride); 69 else 70 { 71 vp8_dc_only_idct_add_v6 (q[16]*dq[0], pre+4, dst+4, 16, stride); 72 ((int *)(q+16))[0] = 0; 73 } 74 75 if (eobs[2] > 1) 76 vp8_dequant_idct_add_v6 (q+32, dq, pre+8, dst+8, 16, stride); 77 else 78 { 79 vp8_dc_only_idct_add_v6 (q[32]*dq[0], pre+8, dst+8, 16, stride); 80 ((int *)(q+32))[0] = 0; 81 } 82 83 if (eobs[3] > 1) 84 vp8_dequant_idct_add_v6 (q+48, dq, pre+12, dst+12, 16, stride); 85 else 86 { 87 vp8_dc_only_idct_add_v6 (q[48]*dq[0], pre+12, dst+12, 16, stride); 88 ((int *)(q+48))[0] = 0; 89 } 90 91 q += 64; 92 pre += 64; 93 dst += 4*stride; 94 eobs += 4; 95 } 96 } 97 98 void vp8_dequant_idct_add_uv_block_v6 99 (short *q, short *dq, unsigned char *pre, 100 unsigned char *dstu, unsigned char *dstv, int stride, char *eobs) 101 { 102 int i; 103 104 for (i = 0; i < 2; i++) 105 { 106 if (eobs[0] > 1) 107 vp8_dequant_idct_add_v6 (q, dq, pre, dstu, 8, stride); 108 else 109 { 110 vp8_dc_only_idct_add_v6 (q[0]*dq[0], pre, dstu, 8, stride); 111 ((int *)q)[0] = 0; 112 } 113 114 if (eobs[1] > 1) 115 vp8_dequant_idct_add_v6 (q+16, dq, pre+4, dstu+4, 8, stride); 116 else 117 { 118 vp8_dc_only_idct_add_v6 (q[16]*dq[0], pre+4, dstu+4, 8, stride); 119 ((int *)(q+16))[0] = 0; 120 } 121 122 q += 32; 123 pre += 32; 124 dstu += 4*stride; 125 eobs += 2; 126 } 127 128 for (i = 0; i < 2; i++) 129 { 130 if (eobs[0] > 1) 131 vp8_dequant_idct_add_v6 (q, dq, pre, dstv, 8, stride); 132 else 133 { 134 vp8_dc_only_idct_add_v6 (q[0]*dq[0], pre, dstv, 8, stride); 135 ((int *)q)[0] = 0; 136 } 137 138 if (eobs[1] > 1) 139 vp8_dequant_idct_add_v6 (q+16, dq, pre+4, dstv+4, 8, stride); 140 else 141 { 142 vp8_dc_only_idct_add_v6 (q[16]*dq[0], pre+4, dstv+4, 8, stride); 143 ((int *)(q+16))[0] = 0; 144 } 145 146 q += 32; 147 pre += 32; 148 dstv += 4*stride; 149 eobs += 2; 150 } 151 } 152
