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1 /* | 1 /* |
2 * Copyright 2012 The LibYuv Project Authors. All rights reserved. | 2 * Copyright 2012 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 |
11 #include "libyuv/mjpeg_decoder.h" | 11 #include "libyuv/mjpeg_decoder.h" |
12 | 12 |
13 #include <string.h> // For memchr. | 13 #include <string.h> // For memchr. |
14 | 14 |
15 #ifdef __cplusplus | 15 #ifdef __cplusplus |
16 namespace libyuv { | 16 namespace libyuv { |
17 extern "C" { | 17 extern "C" { |
18 #endif | 18 #endif |
19 | 19 |
20 // Enable this to try scasb implementation. | 20 // Enable this to try scasb implementation. |
21 // #define ENABLE_SCASB 1 | 21 // #define ENABLE_SCASB 1 |
22 | 22 |
23 #ifdef ENABLE_SCASB | 23 #ifdef ENABLE_SCASB |
24 | 24 |
25 // Multiple of 1. | 25 // Multiple of 1. |
26 __declspec(naked) __declspec(align(16)) | 26 __declspec(naked) |
27 const uint8* ScanRow_ERMS(const uint8* src, uint32 val, int count) { | 27 const uint8* ScanRow_ERMS(const uint8* src, uint32 val, int count) { |
28 __asm { | 28 __asm { |
29 mov edx, edi | 29 mov edx, edi |
30 mov edi, [esp + 4] // src | 30 mov edi, [esp + 4] // src |
31 mov eax, [esp + 8] // val | 31 mov eax, [esp + 8] // val |
32 mov ecx, [esp + 12] // count | 32 mov ecx, [esp + 12] // count |
33 repne scasb | 33 repne scasb |
34 jne sr99 | 34 jne sr99 |
35 mov eax, edi | 35 mov eax, edi |
36 sub eax, 1 | 36 sub eax, 1 |
(...skipping 55 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
92 } | 92 } |
93 return ScanEOI(sample, sample_size); | 93 return ScanEOI(sample, sample_size); |
94 | 94 |
95 } | 95 } |
96 | 96 |
97 #ifdef __cplusplus | 97 #ifdef __cplusplus |
98 } // extern "C" | 98 } // extern "C" |
99 } // namespace libyuv | 99 } // namespace libyuv |
100 #endif | 100 #endif |
101 | 101 |
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