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Side by Side Diff: webrtc/modules/desktop_capture/differ_block.cc

Issue 1532333002: Defines for ARM and MIPS CPU types. (Closed) Base URL: https://chromium.googlesource.com/external/webrtc.git@master
Patch Set: Created 5 years ago
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1 /* 1 /*
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2013 The WebRTC 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 "webrtc/modules/desktop_capture/differ_block.h" 11 #include "webrtc/modules/desktop_capture/differ_block.h"
12 12
13 #include <string.h> 13 #include <string.h>
14 14
15 #include "build/build_config.h" 15 #include "webrtc/typedefs.h"
16 #include "webrtc/modules/desktop_capture/differ_block_sse2.h" 16 #include "webrtc/modules/desktop_capture/differ_block_sse2.h"
17 #include "webrtc/system_wrappers/include/cpu_features_wrapper.h" 17 #include "webrtc/system_wrappers/include/cpu_features_wrapper.h"
18 18
19 namespace webrtc { 19 namespace webrtc {
20 20
21 bool BlockDifference_C(const uint8_t* image1, 21 bool BlockDifference_C(const uint8_t* image1,
22 const uint8_t* image2, 22 const uint8_t* image2,
23 int stride) { 23 int stride) {
24 int width_bytes = kBlockSize * kBytesPerPixel; 24 int width_bytes = kBlockSize * kBytesPerPixel;
25 25
26 for (int y = 0; y < kBlockSize; y++) { 26 for (int y = 0; y < kBlockSize; y++) {
27 if (memcmp(image1, image2, width_bytes) != 0) 27 if (memcmp(image1, image2, width_bytes) != 0)
28 return true; 28 return true;
29 image1 += stride; 29 image1 += stride;
30 image2 += stride; 30 image2 += stride;
31 } 31 }
32 return false; 32 return false;
33 } 33 }
34 34
35 bool BlockDifference(const uint8_t* image1, 35 bool BlockDifference(const uint8_t* image1,
36 const uint8_t* image2, 36 const uint8_t* image2,
37 int stride) { 37 int stride) {
38 static bool (*diff_proc)(const uint8_t*, const uint8_t*, int) = NULL; 38 static bool (*diff_proc)(const uint8_t*, const uint8_t*, int) = NULL;
39 39
40 if (!diff_proc) { 40 if (!diff_proc) {
41 #if defined(ARCH_CPU_ARM_FAMILY) || defined(ARCH_CPU_MIPS_FAMILY) 41 #if defined(WEBRTC_ARCH_ARM_FAMILY) || defined(WEBRTC_ARCH_MIPS_FAMILY)
42 // For ARM and MIPS processors, always use C version. 42 // For ARM and MIPS processors, always use C version.
43 // TODO(hclam): Implement a NEON version. 43 // TODO(hclam): Implement a NEON version.
44 diff_proc = &BlockDifference_C; 44 diff_proc = &BlockDifference_C;
45 #else 45 #else
46 bool have_sse2 = WebRtc_GetCPUInfo(kSSE2) != 0; 46 bool have_sse2 = WebRtc_GetCPUInfo(kSSE2) != 0;
47 // For x86 processors, check if SSE2 is supported. 47 // For x86 processors, check if SSE2 is supported.
48 if (have_sse2 && kBlockSize == 32) { 48 if (have_sse2 && kBlockSize == 32) {
49 diff_proc = &BlockDifference_SSE2_W32; 49 diff_proc = &BlockDifference_SSE2_W32;
50 } else if (have_sse2 && kBlockSize == 16) { 50 } else if (have_sse2 && kBlockSize == 16) {
51 diff_proc = &BlockDifference_SSE2_W16; 51 diff_proc = &BlockDifference_SSE2_W16;
52 } else { 52 } else {
53 diff_proc = &BlockDifference_C; 53 diff_proc = &BlockDifference_C;
54 } 54 }
55 #endif 55 #endif
56 } 56 }
57 57
58 return diff_proc(image1, image2, stride); 58 return diff_proc(image1, image2, stride);
59 } 59 }
60 60
61 } // namespace webrtc 61 } // namespace webrtc
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