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Issue 7511014: Define Chromoting's differ block size in one (and only one) place. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: update copyright Created 9 years, 4 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 #if defined(_MSC_VER) 5 #if defined(_MSC_VER)
6 #include <intrin.h> 6 #include <intrin.h>
7 #else 7 #else
8 #include <mmintrin.h> 8 #include <mmintrin.h>
9 #include <emmintrin.h> 9 #include <emmintrin.h>
10 #endif 10 #endif
11 11
12 #include "remoting/host/differ_block.h" 12 #include "remoting/host/differ_block.h"
13 #include "remoting/host/differ_block_internal.h" 13 #include "remoting/host/differ_block_internal.h"
14 14
15 namespace remoting { 15 namespace remoting {
16 16
17 extern int BlockDifference_SSE2_W16(const uint8* image1, const uint8* image2, 17 extern int BlockDifference_SSE2_W16(const uint8* image1, const uint8* image2,
18 int stride) { 18 int stride) {
19 __m128i acc = _mm_setzero_si128(); 19 __m128i acc = _mm_setzero_si128();
20 __m128i v0; 20 __m128i v0;
21 __m128i v1; 21 __m128i v1;
22 __m128i sad; 22 __m128i sad;
23 for (int y = 0; y < kBlockHeight; ++y) { 23 for (int y = 0; y < kBlockSize; ++y) {
24 const __m128i* i1 = reinterpret_cast<const __m128i*>(image1); 24 const __m128i* i1 = reinterpret_cast<const __m128i*>(image1);
25 const __m128i* i2 = reinterpret_cast<const __m128i*>(image2); 25 const __m128i* i2 = reinterpret_cast<const __m128i*>(image2);
26 v0 = _mm_loadu_si128(i1); 26 v0 = _mm_loadu_si128(i1);
27 v1 = _mm_loadu_si128(i2); 27 v1 = _mm_loadu_si128(i2);
28 sad = _mm_sad_epu8(v0, v1); 28 sad = _mm_sad_epu8(v0, v1);
29 acc = _mm_adds_epu16(acc, sad); 29 acc = _mm_adds_epu16(acc, sad);
30 v0 = _mm_loadu_si128(i1 + 1); 30 v0 = _mm_loadu_si128(i1 + 1);
31 v1 = _mm_loadu_si128(i2 + 1); 31 v1 = _mm_loadu_si128(i2 + 1);
32 sad = _mm_sad_epu8(v0, v1); 32 sad = _mm_sad_epu8(v0, v1);
33 acc = _mm_adds_epu16(acc, sad); 33 acc = _mm_adds_epu16(acc, sad);
(...skipping 18 matching lines...) Expand all
52 } 52 }
53 return 0; 53 return 0;
54 } 54 }
55 55
56 extern int BlockDifference_SSE2_W32(const uint8* image1, const uint8* image2, 56 extern int BlockDifference_SSE2_W32(const uint8* image1, const uint8* image2,
57 int stride) { 57 int stride) {
58 __m128i acc = _mm_setzero_si128(); 58 __m128i acc = _mm_setzero_si128();
59 __m128i v0; 59 __m128i v0;
60 __m128i v1; 60 __m128i v1;
61 __m128i sad; 61 __m128i sad;
62 for (int y = 0; y < kBlockHeight; ++y) { 62 for (int y = 0; y < kBlockSize; ++y) {
63 const __m128i* i1 = reinterpret_cast<const __m128i*>(image1); 63 const __m128i* i1 = reinterpret_cast<const __m128i*>(image1);
64 const __m128i* i2 = reinterpret_cast<const __m128i*>(image2); 64 const __m128i* i2 = reinterpret_cast<const __m128i*>(image2);
65 v0 = _mm_loadu_si128(i1); 65 v0 = _mm_loadu_si128(i1);
66 v1 = _mm_loadu_si128(i2); 66 v1 = _mm_loadu_si128(i2);
67 sad = _mm_sad_epu8(v0, v1); 67 sad = _mm_sad_epu8(v0, v1);
68 acc = _mm_adds_epu16(acc, sad); 68 acc = _mm_adds_epu16(acc, sad);
69 v0 = _mm_loadu_si128(i1 + 1); 69 v0 = _mm_loadu_si128(i1 + 1);
70 v1 = _mm_loadu_si128(i2 + 1); 70 v1 = _mm_loadu_si128(i2 + 1);
71 sad = _mm_sad_epu8(v0, v1); 71 sad = _mm_sad_epu8(v0, v1);
72 acc = _mm_adds_epu16(acc, sad); 72 acc = _mm_adds_epu16(acc, sad);
(...skipping 29 matching lines...) Expand all
102 int diff = _mm_cvtsi128_si32(sad); 102 int diff = _mm_cvtsi128_si32(sad);
103 if (diff) 103 if (diff)
104 return 1; 104 return 1;
105 image1 += stride; 105 image1 += stride;
106 image2 += stride; 106 image2 += stride;
107 } 107 }
108 return 0; 108 return 0;
109 } 109 }
110 110
111 } // namespace remoting 111 } // namespace remoting
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