blob: 8a0e8c351d68fc4102371aee02d0a000e178be0b (
plain)
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
85
86
87
88
89
90
91
92
|
//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
#include "Filterfliprgb.h"
#include "Pixeldefs.h"
#include "../base/Exception.h"
#include <iostream>
using namespace std;
namespace avg {
FilterFlipRGB::FilterFlipRGB(bool bChangePF)
: Filter(),
m_bChangePF(bChangePF)
{
}
FilterFlipRGB::~FilterFlipRGB()
{
}
void FilterFlipRGB::applyInPlace(BitmapPtr pBmp)
{
AVG_ASSERT(pBmp->getBytesPerPixel() >= 3);
PixelFormat PF = pBmp->getPixelFormat();
if (m_bChangePF) {
switch(PF) {
case B8G8R8A8:
pBmp->setPixelFormat(R8G8B8A8);
break;
case B8G8R8X8:
pBmp->setPixelFormat(R8G8B8X8);
break;
case R8G8B8A8:
pBmp->setPixelFormat(B8G8R8A8);
break;
case R8G8B8X8:
pBmp->setPixelFormat(B8G8R8X8);
break;
case R8G8B8:
pBmp->setPixelFormat(B8G8R8);
break;
case B8G8R8:
pBmp->setPixelFormat(R8G8B8);
break;
default:
// Only 24 and 32 bpp supported.
AVG_ASSERT(false);
}
}
IntPoint size = pBmp->getSize();
for (int y = 0; y < size.y; y++) {
unsigned char * pLine = pBmp->getPixels()+y*pBmp->getStride();
if (pBmp->getBytesPerPixel() == 4) {
for (int x = 0; x < size.x; x++) {
unsigned char tmp = pLine[x*4+REDPOS];
pLine[x*4+REDPOS] = pLine[x*4+BLUEPOS];
pLine[x*4+BLUEPOS] = tmp;
}
} else {
for (int x = 0; x < size.x; x++) {
unsigned char tmp = pLine[x*3+REDPOS];
pLine[x*3+REDPOS] = pLine[x*3+BLUEPOS];
pLine[x*3+BLUEPOS] = tmp;
}
}
}
}
} // namespace
|
