1/*
2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
3 * Copyright (C) 2013 Google Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#include "config.h"
22
23#include "core/platform/graphics/filters/SourceGraphic.h"
24
25#include "core/platform/graphics/GraphicsContext.h"
26#include "core/platform/graphics/filters/Filter.h"
27#include "core/platform/text/TextStream.h"
28#include "core/rendering/RenderTreeAsText.h"
29#include "wtf/StdLibExtras.h"
30#include "wtf/text/WTFString.h"
31
32namespace WebCore {
33
34PassRefPtr<SourceGraphic> SourceGraphic::create(Filter* filter)
35{
36    return adoptRef(new SourceGraphic(filter));
37}
38
39const AtomicString& SourceGraphic::effectName()
40{
41    DEFINE_STATIC_LOCAL(const AtomicString, s_effectName, ("SourceGraphic", AtomicString::ConstructFromLiteral));
42    return s_effectName;
43}
44
45void SourceGraphic::determineAbsolutePaintRect()
46{
47    Filter* filter = this->filter();
48    FloatRect paintRect = filter->sourceImageRect();
49    paintRect.scale(filter->filterResolution().width(), filter->filterResolution().height());
50    setAbsolutePaintRect(enclosingIntRect(paintRect));
51}
52
53void SourceGraphic::applySoftware()
54{
55    ImageBuffer* resultImage = createImageBufferResult();
56    Filter* filter = this->filter();
57    if (!resultImage || !filter->sourceImage())
58        return;
59
60    resultImage->context()->drawImageBuffer(filter->sourceImage(), IntPoint());
61}
62
63TextStream& SourceGraphic::externalRepresentation(TextStream& ts, int indent) const
64{
65    writeIndent(ts, indent);
66    ts << "[SourceGraphic]\n";
67    return ts;
68}
69
70} // namespace WebCore
71