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
|
/*
* Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
* Copyright (C) 2005 Eric Seidel <eric@webkit.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if ENABLE(FILTERS)
#include "FEMerge.h"
#include "Filter.h"
#include "GraphicsContext.h"
#include "RenderTreeAsText.h"
#include "TextStream.h"
namespace WebCore {
FEMerge::FEMerge(Filter* filter)
: FilterEffect(filter)
{
}
PassRefPtr<FEMerge> FEMerge::create(Filter* filter)
{
return adoptRef(new FEMerge(filter));
}
void FEMerge::apply()
{
if (hasResult())
return;
unsigned size = numberOfEffectInputs();
ASSERT(size > 0);
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = inputEffect(i);
in->apply();
if (!in->hasResult())
return;
}
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
GraphicsContext* filterContext = resultImage->context();
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = inputEffect(i);
filterContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, drawingRegionOfInputImage(in->absolutePaintRect()));
}
}
void FEMerge::dump()
{
}
TextStream& FEMerge::externalRepresentation(TextStream& ts, int indent) const
{
writeIndent(ts, indent);
ts << "[feMerge";
FilterEffect::externalRepresentation(ts);
unsigned size = numberOfEffectInputs();
ASSERT(size > 0);
ts << " mergeNodes=\"" << size << "\"]\n";
for (unsigned i = 0; i < size; ++i)
inputEffect(i)->externalRepresentation(ts, indent + 1);
return ts;
}
} // namespace WebCore
#endif // ENABLE(FILTERS)
|