[Sync] Test Android passphrase creation UI
[chromium-blink-merge.git] / remoting / base / util.h
blob2546221ad46baa42cf3cecf5e6d1ca5206f3c92a
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
3 // found in the LICENSE file.
5 #ifndef REMOTING_BASE_UTIL_H_
6 #define REMOTING_BASE_UTIL_H_
8 #include <string>
10 #include "media/base/video_frame.h"
11 #include "third_party/webrtc/modules/desktop_capture/desktop_geometry.h"
13 namespace remoting {
15 // Return a string that contains the current date formatted as 'MMDD/HHMMSS:'.
16 std::string GetTimestampString();
18 // Calculate the offset of a specific pixel in an RGB32 buffer.
19 int CalculateRGBOffset(int x, int y, int stride);
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.
23 int CalculateYOffset(int x, int y, int stride);
24 int CalculateUVOffset(int x, int y, int stride);
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
28 // |dest_buffer_rect| areas correspondingly. The scaling factor is determined
29 // as ratio between |dest_size| and |source_size|. The target rectangle
30 // |dect_rect| is specified in the destination coordinates.
32 // |source_buffer_rect| and |dest_buffer_rect| must fall entirely within
33 // the source and destination dimensions, respectively. |dest_rect| must be
34 // completely contained within the source and destinations buffers boundaries
35 // including the case when scaling is requested.
37 // N.B. The top left corner coordinates of YUV buffer should have even X and Y
38 // coordinates.
39 void ConvertAndScaleYUVToRGB32Rect(
40 const uint8* source_yplane,
41 const uint8* source_uplane,
42 const uint8* source_vplane,
43 int source_ystride,
44 int source_uvstride,
45 const webrtc::DesktopSize& source_size,
46 const webrtc::DesktopRect& source_buffer_rect,
47 uint8* dest_buffer,
48 int dest_stride,
49 const webrtc::DesktopSize& dest_size,
50 const webrtc::DesktopRect& dest_buffer_rect,
51 const webrtc::DesktopRect& dest_rect);
53 int RoundToTwosMultiple(int x);
55 // Align the sides of the rectangle to multiples of 2 (expanding outwards).
56 webrtc::DesktopRect AlignRect(const webrtc::DesktopRect& rect);
58 // Scales the supplied rectangle from |in_size| coordinates to |out_size|.
59 // If the result has non-integer coordinates then the smallest integer-
60 // coordinate rectangle that wholly encloses it is returned.
61 webrtc::DesktopRect ScaleRect(const webrtc::DesktopRect& rect,
62 const webrtc::DesktopSize& in_size,
63 const webrtc::DesktopSize& out_size);
65 // Copy content of a rectangle in a RGB32 image.
66 void CopyRGB32Rect(const uint8* source_buffer,
67 int source_stride,
68 const webrtc::DesktopRect& source_buffer_rect,
69 uint8* dest_buffer,
70 int dest_stride,
71 const webrtc::DesktopRect& dest_buffer_rect,
72 const webrtc::DesktopRect& dest_rect);
74 // Replaces every occurrence of "\n" in a string by "\r\n".
75 std::string ReplaceLfByCrLf(const std::string& in);
77 // Replaces every occurrence of "\r\n" in a string by "\n".
78 std::string ReplaceCrLfByLf(const std::string& in);
80 // Checks if the given string is a valid UTF-8 string.
81 bool StringIsUtf8(const char* data, size_t length);
83 bool DoesRectContain(const webrtc::DesktopRect& a,
84 const webrtc::DesktopRect& b);
86 } // namespace remoting
88 #endif // REMOTING_BASE_UTIL_H_