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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 #ifndef REMOTING_BASE_UTIL_H_ | 5 #ifndef REMOTING_BASE_UTIL_H_ |
6 #define REMOTING_BASE_UTIL_H_ | 6 #define REMOTING_BASE_UTIL_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "media/base/video_frame.h" | 10 #include "media/base/video_frame.h" |
11 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h" | 11 #include "third_party/skia/include/core/SkRect.h" |
12 | 12 |
13 namespace remoting { | 13 namespace remoting { |
14 | 14 |
15 // Return a string that contains the current date formatted as 'MMDD/HHMMSS:'. | 15 // Return a string that contains the current date formatted as 'MMDD/HHMMSS:'. |
16 std::string GetTimestampString(); | 16 std::string GetTimestampString(); |
17 | 17 |
18 // Calculate the offset of a specific pixel in an RGB32 buffer. | 18 // Calculate the offset of a specific pixel in an RGB32 buffer. |
19 int CalculateRGBOffset(int x, int y, int stride); | 19 int CalculateRGBOffset(int x, int y, int stride); |
20 | 20 |
21 // Calculate the offset of a specific pixel in a YV12/YUV420 buffer. Note that | 21 // Calculate the offset of a specific pixel in a YV12/YUV420 buffer. Note that |
22 // the X and Y coordinates must both be even owing to the YV12 buffer layout. | 22 // the X and Y coordinates must both be even owing to the YV12 buffer layout. |
23 int CalculateYOffset(int x, int y, int stride); | 23 int CalculateYOffset(int x, int y, int stride); |
24 int CalculateUVOffset(int x, int y, int stride); | 24 int CalculateUVOffset(int x, int y, int stride); |
25 | 25 |
26 // Convert and scale YUV to RGB32 on a specific rectangle. The source and | 26 // Convert and scale YUV to RGB32 on a specific rectangle. The source and |
27 // destination buffers are assumed to contain only |source_buffer_rect| and | 27 // destination buffers are assumed to contain only |source_buffer_rect| and |
28 // |dest_buffer_rect| areas correspondingly. The scaling factor is determined | 28 // |dest_buffer_rect| areas correspondingly. The scaling factor is determined |
29 // as ratio between |dest_size| and |source_size|. The target rectangle | 29 // as ratio between |dest_size| and |source_size|. The target rectangle |
30 // |dect_rect| is specified in the destination coordinates. | 30 // |dect_rect| is specified in the destination coordinates. |
31 // | 31 // |
32 // |source_buffer_rect| and |dest_buffer_rect| must fall entirely within | 32 // |source_buffer_rect| and |dest_buffer_rect| must fall entirely within |
33 // the source and destination dimensions, respectively. |dest_rect| must be | 33 // the source and destination dimensions, respectively. |dest_rect| must be |
34 // completely contained within the source and destinations buffers boundaries | 34 // completely contained within the source and destinations buffers boundaries |
35 // including the case when scaling is requested. | 35 // including the case when scaling is requested. |
36 // | 36 // |
37 // N.B. The top left corner coordinates of YUV buffer should have even X and Y | 37 // N.B. The top left corner coordinates of YUV buffer should have even X and Y |
38 // coordinates. | 38 // coordinates. |
39 void ConvertAndScaleYUVToRGB32Rect( | 39 void ConvertAndScaleYUVToRGB32Rect(const uint8* source_yplane, |
40 const uint8* source_yplane, | 40 const uint8* source_uplane, |
41 const uint8* source_uplane, | 41 const uint8* source_vplane, |
42 const uint8* source_vplane, | 42 int source_ystride, |
43 int source_ystride, | 43 int source_uvstride, |
44 int source_uvstride, | 44 const SkISize& source_size, |
45 const webrtc::DesktopSize& source_size, | 45 const SkIRect& source_buffer_rect, |
46 const webrtc::DesktopRect& source_buffer_rect, | 46 uint8* dest_buffer, |
47 uint8* dest_buffer, | 47 int dest_stride, |
48 int dest_stride, | 48 const SkISize& dest_size, |
49 const webrtc::DesktopSize& dest_size, | 49 const SkIRect& dest_buffer_rect, |
50 const webrtc::DesktopRect& dest_buffer_rect, | 50 const SkIRect& dest_rect); |
51 const webrtc::DesktopRect& dest_rect); | |
52 | 51 |
53 // Convert RGB32 to YUV on a specific rectangle. | 52 // Convert RGB32 to YUV on a specific rectangle. |
54 void ConvertRGB32ToYUVWithRect(const uint8* rgb_plane, | 53 void ConvertRGB32ToYUVWithRect(const uint8* rgb_plane, |
55 uint8* y_plane, | 54 uint8* y_plane, |
56 uint8* u_plane, | 55 uint8* u_plane, |
57 uint8* v_plane, | 56 uint8* v_plane, |
58 int x, | 57 int x, |
59 int y, | 58 int y, |
60 int width, | 59 int width, |
61 int height, | 60 int height, |
62 int rgb_stride, | 61 int rgb_stride, |
63 int y_stride, | 62 int y_stride, |
64 int uv_stride); | 63 int uv_stride); |
65 | 64 |
66 int RoundToTwosMultiple(int x); | 65 int RoundToTwosMultiple(int x); |
67 | 66 |
68 // Align the sides of the rectangle to multiples of 2 (expanding outwards). | 67 // Align the sides of the rectangle to multiples of 2 (expanding outwards). |
69 webrtc::DesktopRect AlignRect(const webrtc::DesktopRect& rect); | 68 SkIRect AlignRect(const SkIRect& rect); |
70 | 69 |
71 // Scales the supplied rectangle from |in_size| coordinates to |out_size|. | 70 // Scales the supplied rectangle from |in_size| coordinates to |out_size|. |
72 // If the result has non-integer coordinates then the smallest integer- | 71 // If the result has non-integer coordinates then the smallest integer- |
73 // coordinate rectangle that wholly encloses it is returned. | 72 // coordinate rectangle that wholly encloses it is returned. |
74 webrtc::DesktopRect ScaleRect(const webrtc::DesktopRect& rect, | 73 SkIRect ScaleRect(const SkIRect& rect, |
75 const webrtc::DesktopSize& in_size, | 74 const SkISize& in_size, |
76 const webrtc::DesktopSize& out_size); | 75 const SkISize& out_size); |
77 | 76 |
78 // Copy content of a rectangle in a RGB32 image. | 77 // Copy content of a rectangle in a RGB32 image. |
79 void CopyRGB32Rect(const uint8* source_buffer, | 78 void CopyRGB32Rect(const uint8* source_buffer, |
80 int source_stride, | 79 int source_stride, |
81 const webrtc::DesktopRect& source_buffer_rect, | 80 const SkIRect& source_buffer_rect, |
82 uint8* dest_buffer, | 81 uint8* dest_buffer, |
83 int dest_stride, | 82 int dest_stride, |
84 const webrtc::DesktopRect& dest_buffer_rect, | 83 const SkIRect& dest_buffer_rect, |
85 const webrtc::DesktopRect& dest_rect); | 84 const SkIRect& dest_rect); |
86 | 85 |
87 // Replaces every occurrence of "\n" in a string by "\r\n". | 86 // Replaces every occurrence of "\n" in a string by "\r\n". |
88 std::string ReplaceLfByCrLf(const std::string& in); | 87 std::string ReplaceLfByCrLf(const std::string& in); |
89 | 88 |
90 // Replaces every occurrence of "\r\n" in a string by "\n". | 89 // Replaces every occurrence of "\r\n" in a string by "\n". |
91 std::string ReplaceCrLfByLf(const std::string& in); | 90 std::string ReplaceCrLfByLf(const std::string& in); |
92 | 91 |
93 // Checks if the given string is a valid UTF-8 string. | 92 // Checks if the given string is a valid UTF-8 string. |
94 bool StringIsUtf8(const char* data, size_t length); | 93 bool StringIsUtf8(const char* data, size_t length); |
95 | 94 |
96 // Returns the username associated with this process, or the empty string on | 95 // Returns the username associated with this process, or the empty string on |
97 // error or if not implemented. | 96 // error or if not implemented. |
98 std::string GetUsername(); | 97 std::string GetUsername(); |
99 | 98 |
100 bool DoesRectContain(const webrtc::DesktopRect& a, | |
101 const webrtc::DesktopRect& b); | |
102 | |
103 } // namespace remoting | 99 } // namespace remoting |
104 | 100 |
105 #endif // REMOTING_BASE_UTIL_H_ | 101 #endif // REMOTING_BASE_UTIL_H_ |
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