void AbstractFramebuffer::read(const Range2Di& rectangle, Image2D& image) {
bindInternal(FramebufferTarget::Read);
const std::size_t dataSize = image.dataSize(rectangle.size());
char* const data = new char[dataSize];
(Context::current()->state().framebuffer->readImplementation)(rectangle, image.format(), image.type(), dataSize, data);
image.setData(image.format(), image.type(), rectangle.size(), data);
}
void CubeMapTexture::image(const Coordinate coordinate, const Int level, Image2D& image) {
const Vector2i size = imageSize(level);
const std::size_t dataSize = image.dataSize(size);
char* data = new char[dataSize];
(this->*Context::current()->state().texture->getCubeImageImplementation)(coordinate, level, size, image.format(), image.type(), dataSize, data);
image.setData(image.format(), image.type(), size, data);
}
void AbstractFramebuffer::read(const Range2Di& rectangle, Image2D& image) {
bindInternal(FramebufferTarget::Read);
/* Reallocate only if needed */
const std::size_t dataSize = Implementation::imageDataSizeFor(image, rectangle.size());
Containers::Array<char> data{image.release()};
if(data.size() < dataSize)
data = Containers::Array<char>{dataSize};
#ifndef MAGNUM_TARGET_GLES2
Buffer::unbindInternal(Buffer::TargetHint::PixelPack);
#endif
image.storage().applyPack();
(Context::current().state().framebuffer->readImplementation)(rectangle, image.format(), image.type(), data.size(), data
#ifdef MAGNUM_TARGET_GLES2
+ Implementation::pixelStorageSkipOffsetFor(image, rectangle.size())
#endif
);
image.setData(image.storage(), image.format(), image.type(), rectangle.size(), std::move(data));
}
