#include "config.h"
#include "ImageSource.h"
#include "ImageDecoderQt.h"
#include "SharedBuffer.h"
#include <QBuffer>
#include <QImage>
#include <QImageReader>
namespace WebCore {
ImageSource::ImageSource()
: m_decoder(0)
{
}
ImageSource::~ImageSource()
{
clear(true);
}
bool ImageSource::initialized() const
{
return m_decoder;
}
void ImageSource::setData(SharedBuffer* data, bool allDataReceived)
{
if (!m_decoder)
m_decoder = ImageDecoderQt::create(*data);
if (!m_decoder)
return;
m_decoder->setData(data->buffer(), allDataReceived);
}
String ImageSource::filenameExtension() const
{
if (!m_decoder)
return String();
return m_decoder->filenameExtension();
}
bool ImageSource::isSizeAvailable()
{
if (!m_decoder)
return false;
return m_decoder->isSizeAvailable();
}
IntSize ImageSource::size() const
{
if (!m_decoder)
return IntSize();
return m_decoder->size();
}
IntSize ImageSource::frameSizeAtIndex(size_t) const
{
return size();
}
int ImageSource::repetitionCount()
{
if (!m_decoder)
return cAnimationNone;
return m_decoder->repetitionCount();
}
size_t ImageSource::frameCount() const
{
if (!m_decoder)
return 0;
return m_decoder->frameCount();
}
NativeImagePtr ImageSource::createFrameAtIndex(size_t index)
{
if (!m_decoder)
return 0;
return m_decoder->imageAtIndex(index);
}
float ImageSource::frameDurationAtIndex(size_t index)
{
if (!m_decoder)
return 0;
const float duration = m_decoder->duration(index) / 1000.0f;
return (duration < 0.051f) ? 0.100f : duration;
}
bool ImageSource::frameHasAlphaAtIndex(size_t index)
{
if (!m_decoder || !m_decoder->supportsAlpha())
return false;
const QPixmap* source = m_decoder->imageAtIndex( index);
if (!source)
return false;
return source->hasAlphaChannel();
}
bool ImageSource::frameIsCompleteAtIndex(size_t index)
{
return (m_decoder && m_decoder->imageAtIndex(index) != 0);
}
void ImageSource::clear(bool destroyAll, size_t clearBeforeFrame, SharedBuffer* data, bool allDataReceived)
{
if (!destroyAll) {
if (m_decoder)
m_decoder->clearFrameBufferCache(clearBeforeFrame);
return;
}
delete m_decoder;
m_decoder = 0;
if (data)
setData(data, allDataReceived);
}
}