bool QVGPixmapData::hasAlphaChannel() const
{
ensureReadback(true);
if (!source.isNull())
return source.hasAlphaChannel();
else
return isValid();
}
QImage QVGPixmapData::toImage() const
{
if (!isValid())
return QImage();
ensureReadback(true);
if (source.isNull()) {
source = QVolatileImage(w, h, sourceFormat());
recreate = true;
}
return source.toImage();
}
// Ensures that the pixmap is backed by some valid data and forces the data to
// be re-uploaded to the VGImage when toVGImage() is called next time.
void QVGPixmapData::forceToImage(bool allowReadback)
{
if (!isValid())
return;
if (allowReadback)
ensureReadback(false);
if (source.isNull())
source = QVolatileImage(w, h, sourceFormat());
recreate = true;
}
void* QVGPixmapData::toNativeType(NativeType type)
{
if (type == QPixmapData::SgImage) {
#if defined(QT_SYMBIAN_SUPPORTS_SGIMAGE) && !defined(QT_NO_EGL)
toVGImage();
if (!isValid() || vgImage == VG_INVALID_HANDLE)
return 0;
TInt err = 0;
RSgDriver driver;
err = driver.Open();
if (err != KErrNone)
return 0;
TSgImageInfo sgInfo;
sgInfo.iPixelFormat = EUidPixelFormatARGB_8888_PRE;
sgInfo.iSizeInPixels.SetSize(w, h);
sgInfo.iUsage = ESgUsageBitOpenVgImage | ESgUsageBitOpenVgSurface;
QScopedPointer<RSgImage> sgImage(new RSgImage());
err = sgImage->Create(sgInfo, NULL, NULL);
if (err != KErrNone) {
driver.Close();
return 0;
}
const EGLint KEglImageAttribs[] = {EGL_IMAGE_PRESERVED_SYMBIAN, EGL_TRUE, EGL_NONE};
EGLImageKHR eglImage = QEgl::eglCreateImageKHR(QEgl::display(),
EGL_NO_CONTEXT,
EGL_NATIVE_PIXMAP_KHR,
(EGLClientBuffer)sgImage.data(),
(EGLint*)KEglImageAttribs);
if (!eglImage || eglGetError() != EGL_SUCCESS) {
sgImage->Close();
driver.Close();
return 0;
}
VGImage dstVgImage = QVG::vgCreateEGLImageTargetKHR(eglImage);
if (!dstVgImage || vgGetError() != VG_NO_ERROR) {
QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
sgImage->Close();
driver.Close();
return 0;
}
vgCopyImage(dstVgImage, 0, 0,
vgImage, 0, 0,
w, h, VG_FALSE);
if (vgGetError() != VG_NO_ERROR) {
sgImage->Close();
sgImage.reset();
}
// release stuff
vgDestroyImage(dstVgImage);
QEgl::eglDestroyImageKHR(QEgl::display(), eglImage);
driver.Close();
return reinterpret_cast<void*>(sgImage.take());
#endif
} else if (type == QPixmapData::FbsBitmap && isValid()) {
ensureReadback(true);
if (source.isNull()) {
source = QVolatileImage(w, h, sourceFormat());
}
// Just duplicate the bitmap handle, no data copying happens.
return source.duplicateNativeImage();
}
return 0;
}
