2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 * Copyright (C) 2010 Google Inc. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #include "GraphicsContext3D.h"
34 #include "ImageSource.h"
35 #include "NativeImageSkia.h"
36 #include <wtf/OwnPtr.h>
37 #include <wtf/PassOwnPtr.h>
43 bool GraphicsContext3D::getImageData(Image* image,
46 bool premultiplyAlpha,
47 bool ignoreGammaAndColorProfile,
48 Vector<uint8_t>& outputVector)
52 OwnPtr<NativeImageSkia> pixels;
53 NativeImageSkia* skiaImage = 0;
54 AlphaOp neededAlphaOp = AlphaDoNothing;
56 ImageSource decoder(ImageSource::AlphaNotPremultiplied,
57 ignoreGammaAndColorProfile ? ImageSource::GammaAndColorProfileIgnored : ImageSource::GammaAndColorProfileApplied);
58 decoder.setData(image->data(), true);
59 if (!decoder.frameCount() || !decoder.frameIsCompleteAtIndex(0))
61 bool hasAlpha = decoder.frameHasAlphaAtIndex(0);
62 pixels = adoptPtr(decoder.createFrameAtIndex(0));
63 if (!pixels.get() || !pixels->isDataComplete() || !pixels->width() || !pixels->height())
65 SkBitmap::Config skiaConfig = pixels->config();
66 if (skiaConfig != SkBitmap::kARGB_8888_Config)
68 skiaImage = pixels.get();
69 if (hasAlpha && premultiplyAlpha)
70 neededAlphaOp = AlphaDoPremultiply;
72 // This is a special case for texImage2D with HTMLCanvasElement input.
73 skiaImage = image->nativeImageForCurrentFrame();
74 if (!premultiplyAlpha)
75 neededAlphaOp = AlphaDoUnmultiply;
79 SkBitmap& skiaImageRef = *skiaImage;
80 SkAutoLockPixels lock(skiaImageRef);
81 ASSERT(skiaImage->rowBytes() == skiaImage->width() * 4);
82 outputVector.resize(skiaImage->rowBytes() * skiaImage->height());
83 return packPixels(reinterpret_cast<const uint8_t*>(skiaImage->getPixels()),
84 SourceFormatBGRA8, skiaImage->width(), skiaImage->height(), 0,
85 format, type, neededAlphaOp, outputVector.data());
88 } // namespace WebCore
90 #endif // ENABLE(WEBGL)