diff options
Diffstat (limited to 'src/3rdparty/webkit/WebCore/platform/image-decoders/qt/RGBA32BufferQt.cpp')
-rw-r--r-- | src/3rdparty/webkit/WebCore/platform/image-decoders/qt/RGBA32BufferQt.cpp | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/WebCore/platform/image-decoders/qt/RGBA32BufferQt.cpp b/src/3rdparty/webkit/WebCore/platform/image-decoders/qt/RGBA32BufferQt.cpp new file mode 100644 index 0000000000..da6ab380cb --- /dev/null +++ b/src/3rdparty/webkit/WebCore/platform/image-decoders/qt/RGBA32BufferQt.cpp @@ -0,0 +1,144 @@ +/* + * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. + * Copyright (C) 2008, 2009 Google, Inc. + * Copyright (C) 2009 Holger Hans Peter Freyther + * + * 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" +#include "ImageDecoder.h" + +#include <QPixmap> +#include <stdio.h> + +namespace WebCore { + +RGBA32Buffer::RGBA32Buffer() + : m_status(FrameEmpty) + , m_hasAlpha(false) + , m_size() + , m_duration(0) + , m_disposalMethod(DisposeNotSpecified) +{ +} + +// The image must not have format 8888 pre multiplied... +void RGBA32Buffer::setDecodedImage(const QImage& image) +{ + m_image = image; + m_size = image.size(); + m_hasAlpha = image.hasAlphaChannel(); +} + +void RGBA32Buffer::clear() +{ + m_image = QImage(); + m_status = FrameEmpty; + // NOTE: Do not reset other members here; clearFrameBufferCache() + // calls this to free the bitmap data, but other functions like + // initFrameBuffer() and frameComplete() may still need to read + // other metadata out of this frame later. +} + +void RGBA32Buffer::zeroFill() +{ + m_image.fill(0); +} + +void RGBA32Buffer::copyBitmapData(const RGBA32Buffer& other) +{ + if (this == &other) + return; + + m_image = other.m_image; + m_size = other.m_size; + m_hasAlpha = other.m_hasAlpha; +} + +bool RGBA32Buffer::setSize(int newWidth, int newHeight) +{ + // This function should only be called once, it will leak memory + // otherwise. + ASSERT(width() == 0 && height() == 0); + + m_size = IntSize(newWidth, newHeight); + m_image = QImage(newWidth, newHeight, QImage::Format_ARGB32_Premultiplied); + if (m_image.isNull()) { + // Allocation failure, maybe the bitmap was too big. + setStatus(FrameComplete); + return false; + } + + // Zero the image. + zeroFill(); + + return true; +} + +QPixmap* RGBA32Buffer::asNewNativeImage() const +{ + QPixmap pix = QPixmap::fromImage(m_image); + m_image = QImage(); + + return new QPixmap(pix); +} + +bool RGBA32Buffer::hasAlpha() const +{ + return m_hasAlpha; +} + +void RGBA32Buffer::setHasAlpha(bool alpha) +{ + m_hasAlpha = alpha; +} + +void RGBA32Buffer::setStatus(FrameStatus status) +{ + m_status = status; +} + +RGBA32Buffer& RGBA32Buffer::operator=(const RGBA32Buffer& other) +{ + if (this == &other) + return *this; + + copyBitmapData(other); + setRect(other.rect()); + setStatus(other.status()); + setDuration(other.duration()); + setDisposalMethod(other.disposalMethod()); + return *this; +} + +int RGBA32Buffer::width() const +{ + return m_size.width(); +} + +int RGBA32Buffer::height() const +{ + return m_size.height(); +} + +} |