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Side by Side Diff: media/video/capture/screen/differ_block_sse2.cc

Issue 12047101: Move screen capturers from remoting/capturer to media/video/capturer/screen (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 7 years, 10 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "remoting/capturer/differ_block_sse2.h" 5 #include "media/video/capture/screen/differ_block_sse2.h"
6 6
7 #if defined(_MSC_VER) 7 #if defined(_MSC_VER)
8 #include <intrin.h> 8 #include <intrin.h>
9 #else 9 #else
10 #include <mmintrin.h> 10 #include <mmintrin.h>
11 #include <emmintrin.h> 11 #include <emmintrin.h>
12 #endif 12 #endif
13 13
14 #include "remoting/capturer/differ_block.h" 14 #include "media/video/capture/screen/differ_block.h"
15 15
16 namespace remoting { 16 namespace media {
17 17
18 extern int BlockDifference_SSE2_W16(const uint8* image1, const uint8* image2, 18 extern int BlockDifference_SSE2_W16(const uint8* image1, const uint8* image2,
19 int stride) { 19 int stride) {
20 __m128i acc = _mm_setzero_si128(); 20 __m128i acc = _mm_setzero_si128();
21 __m128i v0; 21 __m128i v0;
22 __m128i v1; 22 __m128i v1;
23 __m128i sad; 23 __m128i sad;
24 for (int y = 0; y < kBlockSize; ++y) { 24 for (int y = 0; y < kBlockSize; ++y) {
25 const __m128i* i1 = reinterpret_cast<const __m128i*>(image1); 25 const __m128i* i1 = reinterpret_cast<const __m128i*>(image1);
26 const __m128i* i2 = reinterpret_cast<const __m128i*>(image2); 26 const __m128i* i2 = reinterpret_cast<const __m128i*>(image2);
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102 sad = _mm_adds_epu16(sad, acc); 102 sad = _mm_adds_epu16(sad, acc);
103 int diff = _mm_cvtsi128_si32(sad); 103 int diff = _mm_cvtsi128_si32(sad);
104 if (diff) 104 if (diff)
105 return 1; 105 return 1;
106 image1 += stride; 106 image1 += stride;
107 image2 += stride; 107 image2 += stride;
108 } 108 }
109 return 0; 109 return 0;
110 } 110 }
111 111
112 } // namespace remoting 112 } // namespace media
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