obs-StreamFX/source/filter-shadow-sdf.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
*/
#ifndef OBS_STREAM_EFFECTS_FILTER_SHADOW_SDF_HPP
#define OBS_STREAM_EFFECTS_FILTER_SHADOW_SDF_HPP
#pragma once
#include <memory>
#include "gs-effect.hpp"
#include "gs-rendertarget.hpp"
#include "gs-sampler.hpp"
#include "gs-texture.hpp"
#include "gs-vertexbuffer.hpp"
#include "plugin.hpp"
// OBS
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4201)
#endif
#include <obs.h>
#ifdef _MSC_VER
#pragma warning(pop)
#endif
namespace filter {
class shadow_sdf {
obs_source_t* m_self;
// Input
std::shared_ptr<gs::rendertarget> m_source_rt;
std::shared_ptr<gs::texture> m_source_texture;
bool m_source_rendered;
// Distance Field
std::shared_ptr<gs::rendertarget> m_sdf_write, m_sdf_read;
std::shared_ptr<gs::texture> m_sdf_texture;
float_t m_tick = 0.;
bool m_inner_shadow;
float_t m_inner_range_min;
float_t m_inner_range_max;
float_t m_inner_offset_x;
float_t m_inner_offset_y;
uint32_t m_inner_color;
bool m_outer_shadow;
float_t m_outer_range_min;
float_t m_outer_range_max;
float_t m_outer_offset_x;
float_t m_outer_offset_y;
uint32_t m_outer_color;
static bool cb_modified_inside(void* ptr, obs_properties_t* props, obs_property* prop, obs_data_t* settings);
static bool cb_modified_outside(void* ptr, obs_properties_t* props, obs_property* prop, obs_data_t* settings);
public:
shadow_sdf(obs_data_t* settings, obs_source_t* self);
~shadow_sdf();
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 shadow_sdf_factory {
obs_source_info source_info;
std::list<shadow_sdf*> sources;
std::shared_ptr<gs::effect> sdf_generator_effect;
std::shared_ptr<gs::effect> sdf_shadow_effect;
private:
shadow_sdf_factory();
~shadow_sdf_factory();
void on_list_fill();
void on_list_empty();
protected:
static void* create(obs_data_t* settings, obs_source_t* self);
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_sdf_generator_effect();
std::shared_ptr<gs::effect> get_sdf_shadow_effect();
public: // Singleton
static void initialize();
static void finalize();
static shadow_sdf_factory* get();
};
} // namespace filter
#endif