1/*
2 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
3 * Copyright (C) 2014 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 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24 * THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "BitmapTexture.h"
29
30#include "GraphicsLayer.h"
31#include "ImageBuffer.h"
32#include "TextureMapper.h"
33
34namespace WebCore {
35
36void BitmapTexture::updateContents(TextureMapper&, GraphicsLayer* sourceLayer, const IntRect& targetRect, const IntPoint& offset, float scale)
37{
38 // Making an unconditionally unaccelerated buffer here is OK because this code
39 // isn't used by any platforms that respect the accelerated bit.
40 std::unique_ptr<ImageBuffer> imageBuffer = ImageBuffer::create(targetRect.size(), Unaccelerated);
41
42 if (!imageBuffer)
43 return;
44
45 GraphicsContext& context = imageBuffer->context();
46 context.setImageInterpolationQuality(InterpolationDefault);
47 context.setTextDrawingMode(TextModeFill);
48
49 IntRect sourceRect(targetRect);
50 sourceRect.setLocation(offset);
51 sourceRect.scale(1 / scale);
52 context.applyDeviceScaleFactor(scale);
53 context.translate(-sourceRect.x(), -sourceRect.y());
54
55 sourceLayer->paintGraphicsLayerContents(context, sourceRect);
56
57 RefPtr<Image> image = imageBuffer->copyImage(DontCopyBackingStore);
58 if (!image)
59 return;
60
61 updateContents(image.get(), targetRect, IntPoint());
62}
63
64} // namespace
65