| /* |
| * Copyright (c) 2013, 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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 "platform/graphics/ImageBufferSurface.h" |
| |
| #include "platform/graphics/GraphicsContext.h" |
| #include "platform/graphics/ImageBuffer.h" |
| #include "platform/graphics/StaticBitmapImage.h" |
| #include "third_party/skia/include/core/SkColorSpace.h" |
| #include "third_party/skia/include/core/SkImage.h" |
| |
| class SkPicture; |
| |
| namespace blink { |
| |
| ImageBufferSurface::ImageBufferSurface(const IntSize& size, |
| OpacityMode opacityMode, |
| sk_sp<SkColorSpace> colorSpace) |
| : m_opacityMode(opacityMode), m_size(size), m_colorSpace(colorSpace) { |
| setIsHidden(false); |
| } |
| |
| ImageBufferSurface::~ImageBufferSurface() {} |
| |
| sk_sp<SkPicture> ImageBufferSurface::getPicture() { |
| return nullptr; |
| } |
| |
| void ImageBufferSurface::clear() { |
| // Clear the background transparent or opaque, as required. It would be nice |
| // if this wasn't required, but the canvas is currently filled with the magic |
| // transparency color. Can we have another way to manage this? |
| if (isValid()) { |
| if (m_opacityMode == Opaque) { |
| canvas()->clear(SK_ColorBLACK); |
| } else { |
| canvas()->clear(SK_ColorTRANSPARENT); |
| } |
| didDraw(FloatRect(FloatPoint(0, 0), FloatSize(size()))); |
| } |
| } |
| |
| void ImageBufferSurface::draw(GraphicsContext& context, |
| const FloatRect& destRect, |
| const FloatRect& srcRect, |
| SkXfermode::Mode op) { |
| sk_sp<SkImage> snapshot = |
| newImageSnapshot(PreferNoAcceleration, SnapshotReasonPaint); |
| if (!snapshot) |
| return; |
| |
| RefPtr<Image> image = StaticBitmapImage::create(std::move(snapshot)); |
| context.drawImage(image.get(), destRect, &srcRect, op); |
| } |
| |
| void ImageBufferSurface::flush(FlushReason) { |
| canvas()->flush(); |
| } |
| |
| bool ImageBufferSurface::writePixels(const SkImageInfo& origInfo, |
| const void* pixels, |
| size_t rowBytes, |
| int x, |
| int y) { |
| return canvas()->writePixels(origInfo, pixels, rowBytes, x, y); |
| } |
| |
| } // namespace blink |