/* * 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_hasAlpha(false) , m_size() , m_status(FrameEmpty) , 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()) 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(); } }