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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/skia/include/core/SkRect.h" | 11 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.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(const uint8* source_yplane, | 39 void ConvertAndScaleYUVToRGB32Rect( |
40 const uint8* source_uplane, | 40 const uint8* source_yplane, |
41 const uint8* source_vplane, | 41 const uint8* source_uplane, |
42 int source_ystride, | 42 const uint8* source_vplane, |
43 int source_uvstride, | 43 int source_ystride, |
44 const SkISize& source_size, | 44 int source_uvstride, |
45 const SkIRect& source_buffer_rect, | 45 const webrtc::DesktopSize& source_size, |
46 uint8* dest_buffer, | 46 const webrtc::DesktopRect& source_buffer_rect, |
47 int dest_stride, | 47 uint8* dest_buffer, |
48 const SkISize& dest_size, | 48 int dest_stride, |
49 const SkIRect& dest_buffer_rect, | 49 const webrtc::DesktopSize& dest_size, |
50 const SkIRect& dest_rect); | 50 const webrtc::DesktopRect& dest_buffer_rect, |
| 51 const webrtc::DesktopRect& dest_rect); |
51 | 52 |
52 // Convert RGB32 to YUV on a specific rectangle. | 53 // Convert RGB32 to YUV on a specific rectangle. |
53 void ConvertRGB32ToYUVWithRect(const uint8* rgb_plane, | 54 void ConvertRGB32ToYUVWithRect(const uint8* rgb_plane, |
54 uint8* y_plane, | 55 uint8* y_plane, |
55 uint8* u_plane, | 56 uint8* u_plane, |
56 uint8* v_plane, | 57 uint8* v_plane, |
57 int x, | 58 int x, |
58 int y, | 59 int y, |
59 int width, | 60 int width, |
60 int height, | 61 int height, |
61 int rgb_stride, | 62 int rgb_stride, |
62 int y_stride, | 63 int y_stride, |
63 int uv_stride); | 64 int uv_stride); |
64 | 65 |
65 int RoundToTwosMultiple(int x); | 66 int RoundToTwosMultiple(int x); |
66 | 67 |
67 // Align the sides of the rectangle to multiples of 2 (expanding outwards). | 68 // Align the sides of the rectangle to multiples of 2 (expanding outwards). |
68 SkIRect AlignRect(const SkIRect& rect); | 69 webrtc::DesktopRect AlignRect(const webrtc::DesktopRect& rect); |
69 | 70 |
70 // Scales the supplied rectangle from |in_size| coordinates to |out_size|. | 71 // Scales the supplied rectangle from |in_size| coordinates to |out_size|. |
71 // If the result has non-integer coordinates then the smallest integer- | 72 // If the result has non-integer coordinates then the smallest integer- |
72 // coordinate rectangle that wholly encloses it is returned. | 73 // coordinate rectangle that wholly encloses it is returned. |
73 SkIRect ScaleRect(const SkIRect& rect, | 74 webrtc::DesktopRect ScaleRect(const webrtc::DesktopRect& rect, |
74 const SkISize& in_size, | 75 const webrtc::DesktopSize& in_size, |
75 const SkISize& out_size); | 76 const webrtc::DesktopSize& out_size); |
76 | 77 |
77 // Copy content of a rectangle in a RGB32 image. | 78 // Copy content of a rectangle in a RGB32 image. |
78 void CopyRGB32Rect(const uint8* source_buffer, | 79 void CopyRGB32Rect(const uint8* source_buffer, |
79 int source_stride, | 80 int source_stride, |
80 const SkIRect& source_buffer_rect, | 81 const webrtc::DesktopRect& source_buffer_rect, |
81 uint8* dest_buffer, | 82 uint8* dest_buffer, |
82 int dest_stride, | 83 int dest_stride, |
83 const SkIRect& dest_buffer_rect, | 84 const webrtc::DesktopRect& dest_buffer_rect, |
84 const SkIRect& dest_rect); | 85 const webrtc::DesktopRect& dest_rect); |
85 | 86 |
86 // Replaces every occurrence of "\n" in a string by "\r\n". | 87 // Replaces every occurrence of "\n" in a string by "\r\n". |
87 std::string ReplaceLfByCrLf(const std::string& in); | 88 std::string ReplaceLfByCrLf(const std::string& in); |
88 | 89 |
89 // Replaces every occurrence of "\r\n" in a string by "\n". | 90 // Replaces every occurrence of "\r\n" in a string by "\n". |
90 std::string ReplaceCrLfByLf(const std::string& in); | 91 std::string ReplaceCrLfByLf(const std::string& in); |
91 | 92 |
92 // Checks if the given string is a valid UTF-8 string. | 93 // Checks if the given string is a valid UTF-8 string. |
93 bool StringIsUtf8(const char* data, size_t length); | 94 bool StringIsUtf8(const char* data, size_t length); |
94 | 95 |
95 // Returns the username associated with this process, or the empty string on | 96 // Returns the username associated with this process, or the empty string on |
96 // error or if not implemented. | 97 // error or if not implemented. |
97 std::string GetUsername(); | 98 std::string GetUsername(); |
98 | 99 |
| 100 bool DoesRectContain(const webrtc::DesktopRect& a, |
| 101 const webrtc::DesktopRect& b); |
| 102 |
99 } // namespace remoting | 103 } // namespace remoting |
100 | 104 |
101 #endif // REMOTING_BASE_UTIL_H_ | 105 #endif // REMOTING_BASE_UTIL_H_ |
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