void QVGPixmapData::reclaimImages()
{
if (!inImagePool)
return;
forceToImage();
destroyImages();
}
void QVGPixmapData::setAlphaChannel(const QPixmap &alphaChannel)
{
if (!isValid())
return;
forceToImage();
source.setAlphaChannel(alphaChannel);
}
void QGLPixmapData::reclaimTexture()
{
if (!inTexturePool)
return;
forceToImage();
destroyTexture();
}
void QGLPixmapData::fill(const QColor &color)
{
if (!isValid())
return;
bool hasAlpha = color.alpha() != 255;
if (hasAlpha && !m_hasAlpha) {
if (m_texture.id) {
destroyTexture();
m_dirty = true;
}
m_hasAlpha = color.alpha() != 255;
}
if (useFramebufferObjects()) {
m_source = QVolatileImage();
m_hasFillColor = true;
m_fillColor = color;
} else {
forceToImage();
if (m_source.depth() == 32) {
m_source.fill(PREMUL(color.rgba()));
} else if (m_source.depth() == 1) {
if (color == Qt::color1)
m_source.fill(1);
else
m_source.fill(0);
}
}
}
void QVGPixmapData::hibernate()
{
// If the image was imported (e.g, from an SgImage under Symbian),
// then we cannot copy it back to main memory for storage.
if (vgImage != VG_INVALID_HANDLE && source.isNull())
return;
forceToImage();
destroyImageAndContext();
}
void QVGPixmapData::hibernate()
{
// If the image was imported (e.g, from an SgImage under Symbian), then
// skip the hibernation, there is no sense in copying it back to main
// memory because the data is most likely shared between several processes.
bool skipHibernate = (vgImage != VG_INVALID_HANDLE && source.isNull());
#if defined(Q_OS_SYMBIAN)
// However we have to proceed normally if the image was retrieved via
// a handle provider.
skipHibernate &= !nativeImageHandleProvider;
#endif
if (skipHibernate)
return;
forceToImage(false); // no readback allowed here
destroyImageAndContext();
}
void QVGPixmapData::fill(const QColor &color)
{
if (!isValid())
return;
forceToImage();
if (source.depth() == 1) {
// Pick the best approximate color in the image's colortable.
int gray = qGray(color.rgba());
if (qAbs(qGray(source.imageRef().color(0)) - gray)
< qAbs(qGray(source.imageRef().color(1)) - gray))
source.fill(0);
else
source.fill(1);
} else {
source.fill(PREMUL(color.rgba()));
}
}
void QGLPixmapData::hibernate()
{
// If the image was imported (e.g, from an SgImage under Symbian), then
// skip the hibernation, there is no sense in copying it back to main
// memory because the data is most likely shared between several processes.
bool skipHibernate = (m_texture.id && m_source.isNull());
#if defined(Q_OS_SYMBIAN)
// However we have to proceed normally if the image was retrieved via
// a handle provider.
skipHibernate &= !nativeImageHandleProvider;
#endif
if (skipHibernate)
return;
forceToImage();
destroyTexture();
}
QImage *QVGPixmapData::buffer()
{
forceToImage();
return &source;
}
void QVGPixmapData::setAlphaChannel(const QPixmap &alphaChannel)
{
forceToImage();
source.setAlphaChannel(alphaChannel.toImage());
}