mirror of
https://github.com/Xaymar/obs-StreamFX
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a7161b51e0
The nature of this Signed Distance Field based Filter is not to only draw shadows, but to also draw an outline or even glow around a source. Therefore the name "Inner/Outer Shadow (SDF)" does not fit well with the intent of the actual Filter.
141 lines
4 KiB
C++
141 lines
4 KiB
C++
/*
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* Modern effects for a modern Streamer
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* Copyright (C) 2017-2018 Michael Fabian Dirks
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef OBS_STREAM_EFFECTS_FILTER_SHADOW_SDF_HPP
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#define OBS_STREAM_EFFECTS_FILTER_SHADOW_SDF_HPP
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#pragma once
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#include <memory>
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#include "gs-effect.hpp"
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#include "gs-rendertarget.hpp"
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#include "gs-sampler.hpp"
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#include "gs-texture.hpp"
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#include "gs-vertexbuffer.hpp"
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#include "plugin.hpp"
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// OBS
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable : 4201)
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#endif
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#include <obs.h>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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namespace filter {
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namespace shadow_sdf {
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class shadow_sdf_instance;
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class shadow_sdf_factory {
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friend class std::_Ptr_base<filter::shadow_sdf::shadow_sdf_factory>;
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obs_source_info source_info;
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std::list<shadow_sdf_instance*> sources;
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std::shared_ptr<gs::effect> sdf_generator_effect;
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std::shared_ptr<gs::effect> sdf_shadow_effect;
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public: // Singleton
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static void initialize();
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static void finalize();
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static std::shared_ptr<shadow_sdf_factory> get();
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public:
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shadow_sdf_factory();
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~shadow_sdf_factory();
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void on_list_fill();
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void on_list_empty();
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static void* create(obs_data_t* settings, obs_source_t* self);
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static void destroy(void* source);
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static void get_defaults(obs_data_t* settings);
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static obs_properties_t* get_properties(void* source);
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static void update(void* source, obs_data_t* settings);
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static const char* get_name(void* source);
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static uint32_t get_width(void* source);
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static uint32_t get_height(void* source);
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static void activate(void* source);
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static void deactivate(void* source);
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static void video_tick(void* source, float delta);
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static void video_render(void* source, gs_effect_t* effect);
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public:
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std::shared_ptr<gs::effect> get_sdf_generator_effect();
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std::shared_ptr<gs::effect> get_sdf_shadow_effect();
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};
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class shadow_sdf_instance {
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obs_source_t* m_self;
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// Input
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std::shared_ptr<gs::rendertarget> m_source_rt;
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std::shared_ptr<gs::texture> m_source_texture;
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bool m_source_rendered;
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// Distance Field
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std::shared_ptr<gs::rendertarget> m_sdf_write, m_sdf_read;
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std::shared_ptr<gs::texture> m_sdf_texture;
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float_t m_tick = 0.;
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bool m_inner_shadow;
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float_t m_inner_range_min;
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float_t m_inner_range_max;
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float_t m_inner_offset_x;
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float_t m_inner_offset_y;
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uint32_t m_inner_color;
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bool m_outer_shadow;
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float_t m_outer_range_min;
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float_t m_outer_range_max;
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float_t m_outer_offset_x;
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float_t m_outer_offset_y;
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uint32_t m_outer_color;
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static bool cb_modified_inside(void* ptr, obs_properties_t* props, obs_property* prop,
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obs_data_t* settings);
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static bool cb_modified_outside(void* ptr, obs_properties_t* props, obs_property* prop,
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obs_data_t* settings);
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public:
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shadow_sdf_instance(obs_data_t* settings, obs_source_t* self);
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~shadow_sdf_instance();
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obs_properties_t* get_properties();
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void update(obs_data_t*);
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uint32_t get_width();
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uint32_t get_height();
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void activate();
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void deactivate();
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void video_tick(float);
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void video_render(gs_effect_t*);
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};
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} // namespace shadow_sdf
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} // namespace filter
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#endif
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