1 /* 2 * Copyright 2011 The LibYuv 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 "libyuv/rotate_row.h" 12 #include "libyuv/row.h" 13 14 #ifdef __cplusplus 15 namespace libyuv { 16 extern "C" { 17 #endif 18 19 void TransposeWx8_C(const uint8* src, 20 int src_stride, 21 uint8* dst, 22 int dst_stride, 23 int width) { 24 int i; 25 for (i = 0; i < width; ++i) { 26 dst[0] = src[0 * src_stride]; 27 dst[1] = src[1 * src_stride]; 28 dst[2] = src[2 * src_stride]; 29 dst[3] = src[3 * src_stride]; 30 dst[4] = src[4 * src_stride]; 31 dst[5] = src[5 * src_stride]; 32 dst[6] = src[6 * src_stride]; 33 dst[7] = src[7 * src_stride]; 34 ++src; 35 dst += dst_stride; 36 } 37 } 38 39 void TransposeUVWx8_C(const uint8* src, 40 int src_stride, 41 uint8* dst_a, 42 int dst_stride_a, 43 uint8* dst_b, 44 int dst_stride_b, 45 int width) { 46 int i; 47 for (i = 0; i < width; ++i) { 48 dst_a[0] = src[0 * src_stride + 0]; 49 dst_b[0] = src[0 * src_stride + 1]; 50 dst_a[1] = src[1 * src_stride + 0]; 51 dst_b[1] = src[1 * src_stride + 1]; 52 dst_a[2] = src[2 * src_stride + 0]; 53 dst_b[2] = src[2 * src_stride + 1]; 54 dst_a[3] = src[3 * src_stride + 0]; 55 dst_b[3] = src[3 * src_stride + 1]; 56 dst_a[4] = src[4 * src_stride + 0]; 57 dst_b[4] = src[4 * src_stride + 1]; 58 dst_a[5] = src[5 * src_stride + 0]; 59 dst_b[5] = src[5 * src_stride + 1]; 60 dst_a[6] = src[6 * src_stride + 0]; 61 dst_b[6] = src[6 * src_stride + 1]; 62 dst_a[7] = src[7 * src_stride + 0]; 63 dst_b[7] = src[7 * src_stride + 1]; 64 src += 2; 65 dst_a += dst_stride_a; 66 dst_b += dst_stride_b; 67 } 68 } 69 70 void TransposeWxH_C(const uint8* src, 71 int src_stride, 72 uint8* dst, 73 int dst_stride, 74 int width, 75 int height) { 76 int i; 77 for (i = 0; i < width; ++i) { 78 int j; 79 for (j = 0; j < height; ++j) { 80 dst[i * dst_stride + j] = src[j * src_stride + i]; 81 } 82 } 83 } 84 85 void TransposeUVWxH_C(const uint8* src, 86 int src_stride, 87 uint8* dst_a, 88 int dst_stride_a, 89 uint8* dst_b, 90 int dst_stride_b, 91 int width, 92 int height) { 93 int i; 94 for (i = 0; i < width * 2; i += 2) { 95 int j; 96 for (j = 0; j < height; ++j) { 97 dst_a[j + ((i >> 1) * dst_stride_a)] = src[i + (j * src_stride)]; 98 dst_b[j + ((i >> 1) * dst_stride_b)] = src[i + (j * src_stride) + 1]; 99 } 100 } 101 } 102 103 #ifdef __cplusplus 104 } // extern "C" 105 } // namespace libyuv 106 #endif 107
