obs-StreamFX/source/filters/filter-upscaling.hpp
Michael Fabian 'Xaymar' Dirks e109e61ab8 filter/upscaling: Restore alpha after processing
As none of the known Upscaling algorithms handle Alpha, we need to manually restore and interpolate it properly. While this technically reduces visual quality slightly, the chances of this being noticed are slim to none considering that Upscaling is already a questionable solution to quality. Linear was picked here as it produces the best overall result for scaling, keeping gradients mostly in one piece. Mostly.

Fixes #646
2021-10-06 03:08:55 +02:00

130 lines
4.7 KiB
C++

// Copyright (c) 2020 Michael Fabian Dirks <info@xaymar.com>
//
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// in the Software without restriction, including without limitation the rights
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// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// SOFTWARE.
#pragma once
#include <atomic>
#include <memory>
#include <mutex>
#include "obs/gs/gs-effect.hpp"
#include "obs/gs/gs-rendertarget.hpp"
#include "obs/gs/gs-texture.hpp"
#include "obs/obs-source-factory.hpp"
#include "plugin.hpp"
#include "util/util-threadpool.hpp"
#ifdef ENABLE_FILTER_UPSCALING_NVIDIA
#include "nvidia/vfx/nvidia-vfx-superresolution.hpp"
#endif
namespace streamfx::filter::upscaling {
enum class upscaling_provider {
INVALID = -1,
AUTOMATIC = 0,
NVIDIA_SUPERRESOLUTION = 1,
};
const char* cstring(upscaling_provider provider);
std::string string(upscaling_provider provider);
class upscaling_instance : public ::streamfx::obs::source_instance {
std::pair<uint32_t, uint32_t> _in_size;
std::pair<uint32_t, uint32_t> _out_size;
std::atomic<upscaling_provider> _provider;
upscaling_provider _provider_ui;
std::atomic<bool> _provider_ready;
std::mutex _provider_lock;
std::shared_ptr<util::threadpool::task> _provider_task;
std::shared_ptr<::streamfx::obs::gs::effect> _standard_effect;
std::shared_ptr<::streamfx::obs::gs::sampler> _channel0_sampler;
std::shared_ptr<::streamfx::obs::gs::sampler> _channel1_sampler;
std::shared_ptr<::streamfx::obs::gs::rendertarget> _input;
std::shared_ptr<::streamfx::obs::gs::texture> _output;
bool _dirty;
#ifdef ENABLE_FILTER_UPSCALING_NVIDIA
std::shared_ptr<::streamfx::nvidia::vfx::superresolution> _nvidia_fx;
#endif
public:
upscaling_instance(obs_data_t* data, obs_source_t* self);
~upscaling_instance() override;
void load(obs_data_t* data) override;
void migrate(obs_data_t* data, uint64_t version) override;
void update(obs_data_t* data) override;
void properties(obs_properties_t* properties);
uint32_t get_width() override;
uint32_t get_height() override;
void video_tick(float_t time) override;
void video_render(gs_effect_t* effect) override;
private:
void switch_provider(upscaling_provider provider);
void task_switch_provider(util::threadpool_data_t data);
#ifdef ENABLE_FILTER_UPSCALING_NVIDIA
void nvvfxsr_load();
void nvvfxsr_unload();
void nvvfxsr_size();
void nvvfxsr_process();
void nvvfxsr_properties(obs_properties_t* props);
void nvvfxsr_update(obs_data_t* data);
#endif
};
class upscaling_factory
: public ::streamfx::obs::source_factory<::streamfx::filter::upscaling::upscaling_factory,
::streamfx::filter::upscaling::upscaling_instance> {
#ifdef ENABLE_FILTER_UPSCALING_NVIDIA
bool _nvidia_available;
std::shared_ptr<::streamfx::nvidia::cuda::obs> _nvcuda;
std::shared_ptr<::streamfx::nvidia::cv::cv> _nvcvi;
std::shared_ptr<::streamfx::nvidia::vfx::vfx> _nvvfx;
#endif
public:
virtual ~upscaling_factory();
upscaling_factory();
virtual const char* get_name() override;
virtual void get_defaults2(obs_data_t* data) override;
virtual obs_properties_t* get_properties2(upscaling_instance* data) override;
#ifdef ENABLE_FRONTEND
static bool on_manual_open(obs_properties_t* props, obs_property_t* property, void* data);
#endif
bool is_provider_available(upscaling_provider);
upscaling_provider find_ideal_provider();
public: // Singleton
static void initialize();
static void finalize();
static std::shared_ptr<::streamfx::filter::upscaling::upscaling_factory> get();
};
} // namespace streamfx::filter::upscaling