The Tor Browser / file comparison
comparison: media/libvpx/vp8/common/idct_blk.c
media/libvpx/vp8/common/idct_blk.c
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| -1:000000000000 | 0:0a095e7bc376 |
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| 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_c(short *input, short *dq, | |
| 16 unsigned char *dest, int stride); | |
| 17 void vp8_dc_only_idct_add_c(short input_dc, unsigned char * pred, | |
| 18 int pred_stride, unsigned char *dst_ptr, | |
| 19 int dst_stride); | |
| 20 | |
| 21 void vp8_dequant_idct_add_y_block_c | |
| 22 (short *q, short *dq, | |
| 23 unsigned char *dst, int stride, char *eobs) | |
| 24 { | |
| 25 int i, j; | |
| 26 | |
| 27 for (i = 0; i < 4; i++) | |
| 28 { | |
| 29 for (j = 0; j < 4; j++) | |
| 30 { | |
| 31 if (*eobs++ > 1) | |
| 32 vp8_dequant_idct_add_c (q, dq, dst, stride); | |
| 33 else | |
| 34 { | |
| 35 vp8_dc_only_idct_add_c (q[0]*dq[0], dst, stride, dst, stride); | |
| 36 vpx_memset(q, 0, 2 * sizeof(q[0])); | |
| 37 } | |
| 38 | |
| 39 q += 16; | |
| 40 dst += 4; | |
| 41 } | |
| 42 | |
| 43 dst += 4*stride - 16; | |
| 44 } | |
| 45 } | |
| 46 | |
| 47 void vp8_dequant_idct_add_uv_block_c | |
| 48 (short *q, short *dq, | |
| 49 unsigned char *dstu, unsigned char *dstv, int stride, char *eobs) | |
| 50 { | |
| 51 int i, j; | |
| 52 | |
| 53 for (i = 0; i < 2; i++) | |
| 54 { | |
| 55 for (j = 0; j < 2; j++) | |
| 56 { | |
| 57 if (*eobs++ > 1) | |
| 58 vp8_dequant_idct_add_c (q, dq, dstu, stride); | |
| 59 else | |
| 60 { | |
| 61 vp8_dc_only_idct_add_c (q[0]*dq[0], dstu, stride, dstu, stride); | |
| 62 vpx_memset(q, 0, 2 * sizeof(q[0])); | |
| 63 } | |
| 64 | |
| 65 q += 16; | |
| 66 dstu += 4; | |
| 67 } | |
| 68 | |
| 69 dstu += 4*stride - 8; | |
| 70 } | |
| 71 | |
| 72 for (i = 0; i < 2; i++) | |
| 73 { | |
| 74 for (j = 0; j < 2; j++) | |
| 75 { | |
| 76 if (*eobs++ > 1) | |
| 77 vp8_dequant_idct_add_c (q, dq, dstv, stride); | |
| 78 else | |
| 79 { | |
| 80 vp8_dc_only_idct_add_c (q[0]*dq[0], dstv, stride, dstv, stride); | |
| 81 vpx_memset(q, 0, 2 * sizeof(q[0])); | |
| 82 } | |
| 83 | |
| 84 q += 16; | |
| 85 dstv += 4; | |
| 86 } | |
| 87 | |
| 88 dstv += 4*stride - 8; | |
| 89 } | |
| 90 } |
