1/*
2 * Copyright (C) 2017 Metrological Group B.V.
3 * Copyright (C) 2017 Igalia S.L.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following
13 * disclaimer in the documentation and/or other materials provided
14 * with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include "config.h"
30#include "NicosiaPaintingEngineBasic.h"
31
32#include "GraphicsContext.h"
33#include "GraphicsLayer.h"
34#include "NicosiaBuffer.h"
35#include "NicosiaPaintingContext.h"
36
37namespace Nicosia {
38
39using namespace WebCore;
40
41PaintingEngineBasic::PaintingEngineBasic() = default;
42PaintingEngineBasic::~PaintingEngineBasic() = default;
43
44bool PaintingEngineBasic::paint(GraphicsLayer& layer, Ref<Buffer>&& buffer, const IntRect& sourceRect, const IntRect& mappedSourceRect, const IntRect& targetRect, float contentsScale)
45{
46 buffer->beginPainting();
47
48 bool supportsAlpha = buffer->supportsAlpha();
49 PaintingContext::paint(buffer,
50 [&layer, sourceRect, mappedSourceRect, targetRect, contentsScale, supportsAlpha]
51 (GraphicsContext& context)
52 {
53 context.save();
54 context.clip(targetRect);
55 context.translate(targetRect.x(), targetRect.y());
56
57 if (supportsAlpha) {
58 context.setCompositeOperation(CompositeCopy);
59 context.fillRect(IntRect(IntPoint::zero(), sourceRect.size()), Color::transparent);
60 context.setCompositeOperation(CompositeSourceOver);
61 }
62
63 context.translate(-sourceRect.x(), -sourceRect.y());
64 context.scale(FloatSize(contentsScale, contentsScale));
65
66 layer.paintGraphicsLayerContents(context, mappedSourceRect);
67
68 context.restore();
69 });
70
71 buffer->completePainting();
72
73 return true;
74}
75
76} // namespace Nicosia
77