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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 "media/base/simd/convert_rgb_to_yuv.h" |
| 6 |
5 #include <stdint.h> | 7 #include <stdint.h> |
6 | 8 |
| 9 #include <memory> |
| 10 |
7 #include "base/cpu.h" | 11 #include "base/cpu.h" |
8 #include "base/memory/scoped_ptr.h" | |
9 #include "media/base/simd/convert_rgb_to_yuv.h" | |
10 #include "testing/gtest/include/gtest/gtest.h" | 12 #include "testing/gtest/include/gtest/gtest.h" |
11 | 13 |
12 namespace { | 14 namespace { |
13 | 15 |
14 // Reference code that converts RGB pixels to YUV pixels. | 16 // Reference code that converts RGB pixels to YUV pixels. |
15 int ConvertRGBToY(const uint8_t* rgb) { | 17 int ConvertRGBToY(const uint8_t* rgb) { |
16 int y = 25 * rgb[0] + 129 * rgb[1] + 66 * rgb[2]; | 18 int y = 25 * rgb[0] + 129 * rgb[1] + 66 * rgb[2]; |
17 y = ((y + 128) >> 8) + 16; | 19 y = ((y + 128) >> 8) + 16; |
18 return std::max(0, std::min(255, y)); | 20 return std::max(0, std::min(255, y)); |
19 } | 21 } |
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51 if (!cpu.has_ssse3()) | 53 if (!cpu.has_ssse3()) |
52 return; | 54 return; |
53 | 55 |
54 // This test checks a subset of all RGB values so this test does not take so | 56 // This test checks a subset of all RGB values so this test does not take so |
55 // long time. | 57 // long time. |
56 const int kStep = 8; | 58 const int kStep = 8; |
57 const int kWidth = 256 / kStep; | 59 const int kWidth = 256 / kStep; |
58 | 60 |
59 for (int size = 3; size <= 4; ++size) { | 61 for (int size = 3; size <= 4; ++size) { |
60 // Create the output buffers. | 62 // Create the output buffers. |
61 scoped_ptr<uint8_t[]> rgb(new uint8_t[kWidth * size]); | 63 std::unique_ptr<uint8_t[]> rgb(new uint8_t[kWidth * size]); |
62 scoped_ptr<uint8_t[]> y(new uint8_t[kWidth]); | 64 std::unique_ptr<uint8_t[]> y(new uint8_t[kWidth]); |
63 scoped_ptr<uint8_t[]> u(new uint8_t[kWidth / 2]); | 65 std::unique_ptr<uint8_t[]> u(new uint8_t[kWidth / 2]); |
64 scoped_ptr<uint8_t[]> v(new uint8_t[kWidth / 2]); | 66 std::unique_ptr<uint8_t[]> v(new uint8_t[kWidth / 2]); |
65 | 67 |
66 // Choose the function that converts from RGB pixels to YUV ones. | 68 // Choose the function that converts from RGB pixels to YUV ones. |
67 void (*convert)(const uint8_t*, uint8_t*, uint8_t*, uint8_t*, int, int, int, | 69 void (*convert)(const uint8_t*, uint8_t*, uint8_t*, uint8_t*, int, int, int, |
68 int, int) = NULL; | 70 int, int) = NULL; |
69 if (size == 3) | 71 if (size == 3) |
70 convert = media::ConvertRGB24ToYUV_SSSE3; | 72 convert = media::ConvertRGB24ToYUV_SSSE3; |
71 else | 73 else |
72 convert = media::ConvertRGB32ToYUV_SSSE3; | 74 convert = media::ConvertRGB32ToYUV_SSSE3; |
73 | 75 |
74 int total_error = 0; | 76 int total_error = 0; |
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107 const uint8_t* p = &rgb[i * 2 * size]; | 109 const uint8_t* p = &rgb[i * 2 * size]; |
108 int error = ConvertRGBToV(p, size) - v[i]; | 110 int error = ConvertRGBToV(p, size) - v[i]; |
109 total_error += error > 0 ? error : -error; | 111 total_error += error > 0 ? error : -error; |
110 } | 112 } |
111 } | 113 } |
112 } | 114 } |
113 | 115 |
114 EXPECT_EQ(0, total_error); | 116 EXPECT_EQ(0, total_error); |
115 } | 117 } |
116 } | 118 } |
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