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Issue 2574373002: Android420ToI420 - use ptrdiff_t for difference of u and v pointers (Closed)
Patch Set: Created 4 years ago
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1 /* 1 /*
2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. 2 * Copyright 2011 The LibYuv Project Authors. All rights reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 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 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 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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1489 int src_pixel_stride_uv, 1489 int src_pixel_stride_uv,
1490 uint8* dst_y, 1490 uint8* dst_y,
1491 int dst_stride_y, 1491 int dst_stride_y,
1492 uint8* dst_u, 1492 uint8* dst_u,
1493 int dst_stride_u, 1493 int dst_stride_u,
1494 uint8* dst_v, 1494 uint8* dst_v,
1495 int dst_stride_v, 1495 int dst_stride_v,
1496 int width, 1496 int width,
1497 int height) { 1497 int height) {
1498 int y; 1498 int y;
1499 const int vu_off = src_v - src_u; 1499 const ptrdiff_t vu_off = src_v - src_u;
1500 int halfwidth = (width + 1) >> 1; 1500 int halfwidth = (width + 1) >> 1;
1501 int halfheight = (height + 1) >> 1; 1501 int halfheight = (height + 1) >> 1;
1502 if (!src_u || !src_v || !dst_u || !dst_v || width <= 0 || height == 0) { 1502 if (!src_u || !src_v || !dst_u || !dst_v || width <= 0 || height == 0) {
1503 return -1; 1503 return -1;
1504 } 1504 }
1505 // Negative height means invert the image. 1505 // Negative height means invert the image.
1506 if (height < 0) { 1506 if (height < 0) {
1507 height = -height; 1507 height = -height;
1508 halfheight = (height + 1) >> 1; 1508 halfheight = (height + 1) >> 1;
1509 src_y = src_y + (height - 1) * src_stride_y; 1509 src_y = src_y + (height - 1) * src_stride_y;
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1545 dst_u += dst_stride_u; 1545 dst_u += dst_stride_u;
1546 dst_v += dst_stride_v; 1546 dst_v += dst_stride_v;
1547 } 1547 }
1548 return 0; 1548 return 0;
1549 } 1549 }
1550 1550
1551 #ifdef __cplusplus 1551 #ifdef __cplusplus
1552 } // extern "C" 1552 } // extern "C"
1553 } // namespace libyuv 1553 } // namespace libyuv
1554 #endif 1554 #endif
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