BitmapPtr SVG::internalRenderElement(const SVGElementPtr& pElement,
const glm::vec2& renderSize, const glm::vec2& size)
{
glm::vec2 pos = pElement->getPos();
glm::vec2 scale(renderSize.x/size.x, renderSize.y/size.y);
IntPoint boundingBox = IntPoint(renderSize) +
IntPoint(int(scale.x+0.5), int(scale.y+0.5));
BitmapPtr pBmp(new Bitmap(boundingBox, B8G8R8A8));
FilterFill<Pixel32>(Pixel32(0,0,0,0)).applyInPlace(pBmp);
cairo_surface_t* pSurface;
cairo_t* pCairo;
pSurface = cairo_image_surface_create_for_data(pBmp->getPixels(),
CAIRO_FORMAT_ARGB32, boundingBox.x, boundingBox.y,
pBmp->getStride());
pCairo = cairo_create(pSurface);
cairo_scale(pCairo, scale.x, scale.y);
cairo_translate(pCairo, -pos.x, -pos.y);
rsvg_handle_render_cairo_sub(m_pRSVG, pCairo, pElement->getUnescapedID().c_str());
FilterUnmultiplyAlpha().applyInPlace(pBmp);
cairo_surface_destroy(pSurface);
cairo_destroy(pCairo);
if (!BitmapLoader::get()->isBlueFirst()) {
FilterFlipRGB().applyInPlace(pBmp);
}
return pBmp;
}
BitmapPtr OffscreenCanvas::screenshot(bool bIgnoreAlpha) const
{
if (!isRunning() || !m_bIsRendered) {
throw(Exception(AVG_ERR_UNSUPPORTED,
"OffscreenCanvas::screenshot(): Canvas has not been rendered. No screenshot available"));
}
BitmapPtr pBmp = m_pFBO->getImage(0);
if (bIgnoreAlpha) {
pBmp->setPixelFormat(B8G8R8X8);
} else {
FilterUnmultiplyAlpha().applyInPlace(pBmp);
}
return pBmp;
}
