1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
* Copyright (C) 2011 D. R. Commander. All Rights Reserved.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
//
// TransImageGetter - class to perform translation between pixel formats,
// implementing the ImageGetter interface.
//
#ifndef __RFB_TRANSIMAGEGETTER_H__
#define __RFB_TRANSIMAGEGETTER_H__
#include <rfb/Rect.h>
#include <rfb/PixelFormat.h>
#include <rfb/PixelTransformer.h>
#include <rfb/ImageGetter.h>
namespace rfb {
class SMsgWriter;
class PixelBuffer;
class TransImageGetter : public ImageGetter,
public PixelTransformer {
public:
TransImageGetter(bool econ=false);
virtual ~TransImageGetter();
// init() is called to initialise the translation tables. The PixelBuffer
// argument gives the source data and format details, outPF gives the
// client's pixel format.
void init(PixelBuffer* pb, const PixelFormat& outPF, SMsgWriter* writer=0);
// getImage() gets the given rectangle of data from the PixelBuffer,
// translates it into the client's pixel format and puts it in the buffer
// pointed to by the outPtr argument. The optional outStride argument can
// be used where padding is required between the output scanlines (the
// padding will be outStride-r.width() pixels).
void getImage(void* outPtr, const Rect& r, int outStride=0);
// getRawBufferR() gets the given rectangle of data directly from the
// underlying PixelBuffer, bypassing the translation logic. Only use
// this when doing something that's independent of the client's pixel
// format.
const rdr::U8 *getRawBufferR(const Rect &r, int *stride);
// setPixelBuffer() changes the pixel buffer to be used. The new pixel
// buffer MUST have the same pixel format as the old one - if not you
// should call init() instead.
void setPixelBuffer(PixelBuffer* pb_) { pb = pb_; }
PixelBuffer *getPixelBuffer(void) { return pb; }
// setOffset() sets an offset which is subtracted from the coordinates of
// the rectangle given to getImage().
void setOffset(const Point& offset_) { offset = offset_; }
private:
bool economic;
PixelBuffer* pb;
PixelFormat outPF;
SMsgWriter* writer;
rdr::U8* table;
transFnType transFn;
Point offset;
};
}
#endif
|
