obs-StreamFX/source/filter-blur.h

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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 <list>
#include <map>
#include <memory>
#include "gs-effect.h"
#include "gs-helper.h"
#include "gs-texture.h"
#include "plugin.h"
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namespace filter {
namespace blur {
enum type : int64_t {
Box,
Gaussian,
Bilateral,
};
class instance {
obs_source_t* m_source;
gs_texrender_t* primary_rendertarget;
gs_texrender_t* secondary_rendertarget;
gs_texrender_t* horizontal_rendertarget;
gs_texrender_t* vertical_rendertarget;
// blur
std::shared_ptr<gs::effect> blur_effect;
filter::blur::type type;
uint64_t size;
// bilateral
double_t bilateral_smoothing;
double_t bilateral_sharpness;
// Regional
struct Region {
bool enabled;
float_t left;
float_t top;
float_t right;
float_t bottom;
float_t feather;
float_t feather_shift;
bool invert;
} region;
// advanced
bool have_logged_error = false;
uint64_t color_format;
bool apply_shared_param(gs_texture_t* input, float texelX, float texelY);
bool apply_bilateral_param();
bool apply_gaussian_param();
static bool modified_properties(void* ptr, obs_properties_t* props, obs_property* prop,
obs_data_t* settings);
public:
instance(obs_data_t* settings, obs_source_t* parent);
~instance();
obs_properties_t* get_properties();
void update(obs_data_t*);
uint32_t get_width();
uint32_t get_height();
void activate();
void deactivate();
void video_tick(float);
void video_render(gs_effect_t*);
};
class factory {
obs_source_info source_info;
std::list<instance*> sources;
std::shared_ptr<gs::effect> color_converter_effect;
std::map<filter::blur::type, std::shared_ptr<gs::effect>> effects;
std::map<filter::blur::type, std::shared_ptr<gs::texture>> kernels;
private:
factory();
~factory();
void on_list_fill();
void on_list_empty();
void generate_gaussian_kernels();
void generate_kernel_textures();
protected:
static void* create(obs_data_t* settings, obs_source_t* parent);
static void destroy(void* source);
static void get_defaults(obs_data_t* settings);
static obs_properties_t* get_properties(void* source);
static void update(void* source, obs_data_t* settings);
static const char* get_name(void* source);
static uint32_t get_width(void* source);
static uint32_t get_height(void* source);
static void activate(void* source);
static void deactivate(void* source);
static void video_tick(void* source, float delta);
static void video_render(void* source, gs_effect_t* effect);
public:
std::shared_ptr<gs::effect> get_effect(filter::blur::type type);
std::shared_ptr<gs::effect> get_color_converter_effect();
std::shared_ptr<gs::texture> get_kernel(filter::blur::type type);
public: // Singleton
static void initialize();
static void finalize();
static factory* get();
};
} // namespace blur
} // namespace filter