obs-StreamFX/source/gfx/blur/gfx-blur-gaussian-linear.hpp

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// Modern effects for a modern Streamer
// Copyright (C) 2019 Michael Fabian Dirks
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#pragma once
#include "common.hpp"
#include <mutex>
#include <vector>
#include "gfx-blur-base.hpp"
#include "obs/gs/gs-effect.hpp"
#include "obs/gs/gs-rendertarget.hpp"
#include "obs/gs/gs-texture.hpp"
namespace gfx {
namespace blur {
class gaussian_linear_data {
gs::effect _effect;
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std::vector<std::vector<float_t>> _kernels;
public:
gaussian_linear_data();
virtual ~gaussian_linear_data();
gs::effect get_effect();
std::vector<float_t> const& get_kernel(size_t width);
};
class gaussian_linear_factory : public ::gfx::blur::ifactory {
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std::mutex _data_lock;
std::weak_ptr<::gfx::blur::gaussian_linear_data> _data;
public:
gaussian_linear_factory();
virtual ~gaussian_linear_factory() override;
virtual bool is_type_supported(::gfx::blur::type type) override;
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virtual std::shared_ptr<::gfx::blur::base> create(::gfx::blur::type type) override;
virtual double_t get_min_size(::gfx::blur::type type) override;
virtual double_t get_step_size(::gfx::blur::type type) override;
virtual double_t get_max_size(::gfx::blur::type type) override;
virtual double_t get_min_angle(::gfx::blur::type type) override;
virtual double_t get_step_angle(::gfx::blur::type type) override;
virtual double_t get_max_angle(::gfx::blur::type type) override;
virtual bool is_step_scale_supported(::gfx::blur::type type) override;
virtual double_t get_min_step_scale_x(::gfx::blur::type type) override;
virtual double_t get_step_step_scale_x(::gfx::blur::type type) override;
virtual double_t get_max_step_scale_x(::gfx::blur::type type) override;
virtual double_t get_min_step_scale_y(::gfx::blur::type type) override;
virtual double_t get_step_step_scale_y(::gfx::blur::type type) override;
virtual double_t get_max_step_scale_y(::gfx::blur::type type) override;
std::shared_ptr<::gfx::blur::gaussian_linear_data> data();
public: // Singleton
static ::gfx::blur::gaussian_linear_factory& get();
};
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class gaussian_linear : public ::gfx::blur::base {
protected:
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std::shared_ptr<::gfx::blur::gaussian_linear_data> _data;
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double_t _size;
std::pair<double_t, double_t> _step_scale;
std::shared_ptr<::gs::texture> _input_texture;
std::shared_ptr<::gs::rendertarget> _rendertarget;
private:
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std::shared_ptr<::gs::rendertarget> _rendertarget2;
public:
gaussian_linear();
virtual ~gaussian_linear() override;
virtual void set_input(std::shared_ptr<::gs::texture> texture) override;
virtual ::gfx::blur::type get_type() override;
virtual double_t get_size() override;
virtual void set_size(double_t width) override;
virtual void set_step_scale(double_t x, double_t y) override;
virtual void get_step_scale(double_t& x, double_t& y) override;
virtual double_t get_step_scale_x() override;
virtual double_t get_step_scale_y() override;
virtual std::shared_ptr<::gs::texture> render() override;
virtual std::shared_ptr<::gs::texture> get() override;
};
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class gaussian_linear_directional : public ::gfx::blur::gaussian_linear, public ::gfx::blur::base_angle {
double_t _angle;
public:
gaussian_linear_directional();
virtual ~gaussian_linear_directional() override;
virtual ::gfx::blur::type get_type() override;
virtual double_t get_angle() override;
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virtual void set_angle(double_t angle) override;
virtual std::shared_ptr<::gs::texture> render() override;
};
} // namespace blur
} // namespace gfx