implementation(const safe_ptr<ogl_device>& ogl)
: ogl_(ogl)
, shader_(ogl_->invoke([&]{return get_image_shader(*ogl, blend_modes_, post_processing_);}))
, supports_texture_barrier_(glTextureBarrierNV != 0)
{
if (!supports_texture_barrier_)
CASPAR_LOG(warning) << L"[image_mixer] TextureBarrierNV not supported. Post processing will not be available";
}
const boost::iterator_range<const uint8_t*> image_data()
{
{
tbb::mutex::scoped_lock lock(mutex_);
if(!image_data_->data())
{
image_data_.get()->wait(*ogl_);
ogl_->invoke([=]{image_data_.get()->map();}, high_priority);
}
}
auto ptr = static_cast<const uint8_t*>(image_data_->data());
return boost::iterator_range<const uint8_t*>(ptr, ptr + image_data_->size());
}