obs-StreamFX/source/filters/filter-blur.hpp

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/*
* Modern effects for a modern Streamer
* Copyright (C) 2017-2018 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 <chrono>
#include <functional>
#include <list>
#include <map>
#include "gfx/blur/gfx-blur-base.hpp"
#include "gfx/gfx-source-texture.hpp"
#include "obs/gs/gs-effect.hpp"
#include "obs/gs/gs-helper.hpp"
#include "obs/gs/gs-rendertarget.hpp"
#include "obs/gs/gs-texture.hpp"
#include "obs/obs-source-factory.hpp"
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namespace filter::blur {
enum class mask_type : int64_t {
Region,
Image,
Source,
};
class blur_instance : public obs::source_instance {
// Effects
gs::effect _effect_mask;
// Input
std::shared_ptr<gs::rendertarget> _source_rt;
std::shared_ptr<gs::texture> _source_texture;
bool _source_rendered;
// Rendering
std::shared_ptr<gs::texture> _output_texture;
std::shared_ptr<gs::rendertarget> _output_rt;
bool _output_rendered;
// Blur
std::shared_ptr<::gfx::blur::base> _blur;
double_t _blur_size;
double_t _blur_angle;
std::pair<double_t, double_t> _blur_center;
bool _blur_step_scaling;
std::pair<double_t, double_t> _blur_step_scale;
// Masking
struct {
bool enabled;
mask_type type;
struct {
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float_t left;
float_t top;
float_t right;
float_t bottom;
float_t feather;
float_t feather_shift;
bool invert;
} region;
struct {
std::string path;
std::string path_old;
std::shared_ptr<gs::texture> texture;
} image;
struct {
std::string name_old;
std::string name;
bool is_scene;
std::shared_ptr<gfx::source_texture> source_texture;
std::shared_ptr<gs::texture> texture;
} source;
struct {
float_t r;
float_t g;
float_t b;
float_t a;
} color;
float_t multiplier;
} _mask;
public:
blur_instance(obs_data_t* settings, obs_source_t* self);
~blur_instance();
public:
virtual void load(obs_data_t* settings) override;
virtual void migrate(obs_data_t* settings, std::uint64_t version) override;
virtual void update(obs_data_t* settings) override;
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virtual void video_tick(float_t time) override;
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virtual void video_render(gs_effect_t* effect) override;
private:
bool apply_mask_parameters(gs::effect effect, gs_texture_t* original_texture, gs_texture_t* blurred_texture);
};
class blur_factory : public obs::source_factory<filter::blur::blur_factory, filter::blur::blur_instance> {
static std::shared_ptr<filter::blur::blur_factory> factory_instance;
public: // Singleton
static void initialize()
{
factory_instance = std::make_shared<filter::blur::blur_factory>();
}
static void finalize()
{
factory_instance.reset();
}
static std::shared_ptr<blur_factory> get()
{
return factory_instance;
}
private:
std::vector<std::string> _translation_cache;
public:
blur_factory();
virtual ~blur_factory();
virtual const char* get_name() override;
virtual void get_defaults2(obs_data_t* settings) override;
virtual obs_properties_t* get_properties2(filter::blur::blur_instance* data) override;
std::string translate_string(const char* format, ...);
};
} // namespace filter::blur