| /* |
| * Copyright (C) 2010 Apple Inc. All rights reserved. |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| |
| #if USE(3D_GRAPHICS) |
| |
| #include "GraphicsContext3D.h" |
| |
| #include "BitmapImage.h" |
| #include "Image.h" |
| #include "ImageSource.h" |
| #include "NativeImageSkia.h" |
| #include "SkColorPriv.h" |
| #include <wtf/OwnPtr.h> |
| #include <wtf/PassOwnPtr.h> |
| |
| #include <algorithm> |
| |
| namespace WebCore { |
| |
| bool GraphicsContext3D::getImageData(Image* image, |
| GC3Denum format, |
| GC3Denum type, |
| bool premultiplyAlpha, |
| bool ignoreGammaAndColorProfile, |
| Vector<uint8_t>& outputVector) |
| { |
| if (!image) |
| return false; |
| OwnPtr<NativeImageSkia> pixels; |
| NativeImageSkia* skiaImage = image->nativeImageForCurrentFrame(); |
| AlphaOp neededAlphaOp = AlphaDoNothing; |
| bool hasAlpha = skiaImage ? !skiaImage->bitmap().isOpaque() : true; |
| if ((!skiaImage || ignoreGammaAndColorProfile || (hasAlpha && !premultiplyAlpha)) && image->data()) { |
| ImageSource decoder(ImageSource::AlphaNotPremultiplied, |
| ignoreGammaAndColorProfile ? ImageSource::GammaAndColorProfileIgnored : ImageSource::GammaAndColorProfileApplied); |
| // Attempt to get raw unpremultiplied image data |
| decoder.setData(image->data(), true); |
| if (!decoder.frameCount() || !decoder.frameIsCompleteAtIndex(0)) |
| return false; |
| hasAlpha = decoder.frameHasAlphaAtIndex(0); |
| pixels = adoptPtr(decoder.createFrameAtIndex(0)); |
| if (!pixels.get() || !pixels->isDataComplete() || !pixels->bitmap().width() || !pixels->bitmap().height()) |
| return false; |
| SkBitmap::Config skiaConfig = pixels->bitmap().config(); |
| if (skiaConfig != SkBitmap::kARGB_8888_Config) |
| return false; |
| skiaImage = pixels.get(); |
| if (hasAlpha && premultiplyAlpha) |
| neededAlphaOp = AlphaDoPremultiply; |
| } else if (!premultiplyAlpha && hasAlpha) |
| neededAlphaOp = AlphaDoUnmultiply; |
| if (!skiaImage) |
| return false; |
| const SkBitmap& skiaImageRef = skiaImage->bitmap(); |
| SkAutoLockPixels lock(skiaImageRef); |
| ASSERT(skiaImageRef.rowBytes() == skiaImageRef.width() * 4); |
| unsigned int packedSize; |
| // Output data is tightly packed (alignment == 1). |
| if (computeImageSizeInBytes(format, type, skiaImageRef.width(), skiaImageRef.height(), 1, &packedSize, 0) != GraphicsContext3D::NO_ERROR) |
| return false; |
| outputVector.resize(packedSize); |
| return packPixels(reinterpret_cast<const uint8_t*>(skiaImageRef.getPixels()), |
| SK_B32_SHIFT ? SourceFormatRGBA8 : SourceFormatBGRA8, |
| skiaImageRef.width(), skiaImageRef.height(), 0, |
| format, type, neededAlphaOp, outputVector.data()); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // USE(3D_GRAPHICS) |