| /* |
| * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. |
| * Copyright (C) 2007 Alp Toker <alp.toker@collabora.co.uk> |
| * Copyright (C) 2008, 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 "sky/engine/platform/graphics/ImageSource.h" |
| |
| #include "platform/image-decoders/ImageDecoder.h" |
| #include "sky/engine/platform/graphics/DeferredImageDecoder.h" |
| |
| namespace blink { |
| |
| ImageSource::ImageSource(ImageSource::AlphaOption alphaOption, ImageSource::GammaAndColorProfileOption gammaAndColorProfileOption) |
| : m_alphaOption(alphaOption) |
| , m_gammaAndColorProfileOption(gammaAndColorProfileOption) |
| { |
| } |
| |
| ImageSource::~ImageSource() |
| { |
| } |
| |
| size_t ImageSource::clearCacheExceptFrame(size_t clearExceptFrame) |
| { |
| return m_decoder ? m_decoder->clearCacheExceptFrame(clearExceptFrame) : 0; |
| } |
| |
| bool ImageSource::initialized() const |
| { |
| return m_decoder; |
| } |
| |
| void ImageSource::resetDecoder() |
| { |
| m_decoder.clear(); |
| } |
| |
| void ImageSource::setData(SharedBuffer& data, bool allDataReceived) |
| { |
| // Create a decoder by sniffing the encoded data. If insufficient data bytes are available to |
| // determine the encoded image type, no decoder is created. |
| if (!m_decoder) |
| m_decoder = DeferredImageDecoder::create(data, m_alphaOption, m_gammaAndColorProfileOption); |
| |
| if (m_decoder) |
| m_decoder->setData(data, allDataReceived); |
| } |
| |
| String ImageSource::filenameExtension() const |
| { |
| return m_decoder ? m_decoder->filenameExtension() : String(); |
| } |
| |
| bool ImageSource::isSizeAvailable() |
| { |
| return m_decoder && m_decoder->isSizeAvailable(); |
| } |
| |
| bool ImageSource::hasColorProfile() const |
| { |
| return m_decoder && m_decoder->hasColorProfile(); |
| } |
| |
| IntSize ImageSource::size(RespectImageOrientationEnum shouldRespectOrientation) const |
| { |
| return frameSizeAtIndex(0, shouldRespectOrientation); |
| } |
| |
| IntSize ImageSource::frameSizeAtIndex(size_t index, RespectImageOrientationEnum shouldRespectOrientation) const |
| { |
| if (!m_decoder) |
| return IntSize(); |
| |
| IntSize size = m_decoder->frameSizeAtIndex(index); |
| if ((shouldRespectOrientation == RespectImageOrientation) && m_decoder->orientation().usesWidthAsHeight()) |
| return IntSize(size.height(), size.width()); |
| |
| return size; |
| } |
| |
| bool ImageSource::getHotSpot(IntPoint& hotSpot) const |
| { |
| return m_decoder ? m_decoder->hotSpot(hotSpot) : false; |
| } |
| |
| int ImageSource::repetitionCount() |
| { |
| return m_decoder ? m_decoder->repetitionCount() : cAnimationNone; |
| } |
| |
| size_t ImageSource::frameCount() const |
| { |
| return m_decoder ? m_decoder->frameCount() : 0; |
| } |
| |
| PassRefPtr<NativeImageSkia> ImageSource::createFrameAtIndex(size_t index) |
| { |
| if (!m_decoder) |
| return nullptr; |
| |
| ImageFrame* buffer = m_decoder->frameBufferAtIndex(index); |
| if (!buffer || buffer->status() == ImageFrame::FrameEmpty) |
| return nullptr; |
| |
| // Zero-height images can cause problems for some ports. If we have an |
| // empty image dimension, just bail. |
| if (size().isEmpty()) |
| return nullptr; |
| |
| // Return the buffer contents as a native image. For some ports, the data |
| // is already in a native container, and this just increments its refcount. |
| return buffer->asNewNativeImage(); |
| } |
| |
| float ImageSource::frameDurationAtIndex(size_t index) const |
| { |
| if (!m_decoder) |
| return 0; |
| |
| // Many annoying ads specify a 0 duration to make an image flash as quickly as possible. |
| // We follow Firefox's behavior and use a duration of 100 ms for any frames that specify |
| // a duration of <= 10 ms. See <rdar://problem/7689300> and <http://webkit.org/b/36082> |
| // for more information. |
| const float duration = m_decoder->frameDurationAtIndex(index) / 1000.0f; |
| if (duration < 0.011f) |
| return 0.100f; |
| return duration; |
| } |
| |
| ImageOrientation ImageSource::orientationAtIndex(size_t) const |
| { |
| return m_decoder ? m_decoder->orientation() : DefaultImageOrientation; |
| } |
| |
| bool ImageSource::frameHasAlphaAtIndex(size_t index) const |
| { |
| return !m_decoder || m_decoder->frameHasAlphaAtIndex(index); |
| } |
| |
| bool ImageSource::frameIsCompleteAtIndex(size_t index) const |
| { |
| return m_decoder && m_decoder->frameIsCompleteAtIndex(index); |
| } |
| |
| unsigned ImageSource::frameBytesAtIndex(size_t index) const |
| { |
| return m_decoder ? m_decoder->frameBytesAtIndex(index) : 0; |
| } |
| |
| } // namespace blink |