mirror of https://github.com/Xaymar/obs-StreamFX
152 lines
4.2 KiB
C++
152 lines
4.2 KiB
C++
/*
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* Modern effects for a modern Streamer
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* Copyright (C) 2017 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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#include "filter-shader.hpp"
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#include <stdexcept>
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#include "obs/gs/gs-helper.hpp"
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#include "strings.hpp"
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#include "utility.hpp"
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#define ST "Filter.Shader"
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filter::shader::shader_instance::shader_instance(obs_data_t* data, obs_source_t* self)
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: obs::source_instance(data, self)
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{
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_fx = std::make_shared<gfx::shader::shader>(self, gfx::shader::shader_mode::Transition);
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_rt = std::make_shared<gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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update(data);
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}
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filter::shader::shader_instance::~shader_instance() {}
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uint32_t filter::shader::shader_instance::get_width()
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{
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return _fx->width();
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}
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uint32_t filter::shader::shader_instance::get_height()
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{
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return _fx->height();
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}
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void filter::shader::shader_instance::properties(obs_properties_t* props)
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{
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_fx->properties(props);
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}
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void filter::shader::shader_instance::load(obs_data_t* data)
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{
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update(data);
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}
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void filter::shader::shader_instance::update(obs_data_t* data)
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{
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_fx->update(data);
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}
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void filter::shader::shader_instance::video_tick(float_t sec_since_last)
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{
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if (_fx->tick(sec_since_last)) {
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obs_data_t* data = obs_source_get_settings(_self);
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_fx->update(data);
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obs_data_release(data);
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}
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obs_source_t* tgt = obs_filter_get_target(_self);
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_fx->set_size(obs_source_get_width(tgt), obs_source_get_height(tgt));
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}
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void filter::shader::shader_instance::video_render(gs_effect_t* effect)
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{
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if (!_fx || !_fx->width() || !_fx->height()) {
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obs_source_skip_video_filter(_self);
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return;
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}
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{
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gs::debug_marker _marker_cache{gs::debug_color_cache, "%s Cache"};
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auto op = _rt->render(_fx->width(), _fx->height());
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gs_ortho(0, static_cast<float_t>(_fx->width()), 0, static_cast<float_t>(_fx->height()), -1, 1);
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vec4 clear_color = {0};
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gs_clear(GS_CLEAR_COLOR | GS_CLEAR_DEPTH, &clear_color, 0, 0);
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/// Render original source
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if (obs_source_process_filter_begin(_self, GS_RGBA, OBS_NO_DIRECT_RENDERING)) {
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gs_blend_state_push();
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gs_reset_blend_state();
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gs_enable_blending(false);
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gs_blend_function_separate(GS_BLEND_ONE, GS_BLEND_ZERO, GS_BLEND_SRCALPHA, GS_BLEND_ZERO);
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gs_enable_depth_test(false);
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gs_enable_stencil_test(false);
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gs_enable_stencil_write(false);
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gs_enable_color(true, true, true, true);
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gs_set_cull_mode(GS_NEITHER);
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obs_source_process_filter_end(_self, obs_get_base_effect(OBS_EFFECT_DEFAULT), _fx->width(), _fx->height());
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gs_blend_state_pop();
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} else {
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obs_source_skip_video_filter(_self);
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return;
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}
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}
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_fx->prepare_render();
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_fx->set_input_a(_rt->get_texture());
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_fx->render();
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}
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void filter::shader::shader_instance::transition_start() {}
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void filter::shader::shader_instance::transition_stop() {}
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std::shared_ptr<filter::shader::shader_factory> filter::shader::shader_factory::factory_instance = nullptr;
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filter::shader::shader_factory::shader_factory()
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{
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_info.id = "obs-stream-effects-filter-shader";
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_info.type = OBS_SOURCE_TYPE_FILTER;
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_info.output_flags = OBS_SOURCE_VIDEO | OBS_SOURCE_CUSTOM_DRAW;
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finish_setup();
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}
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filter::shader::shader_factory::~shader_factory() {}
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const char* filter::shader::shader_factory::get_name()
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{
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return D_TRANSLATE(ST);
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}
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void filter::shader::shader_factory::get_defaults2(obs_data_t* data) {}
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obs_properties_t* filter::shader::shader_factory::get_properties2(shader::shader_instance* data)
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{
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auto pr = obs_properties_create();
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obs_properties_set_param(pr, data, nullptr);
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if (data) {
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reinterpret_cast<shader_instance*>(data)->properties(pr);
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}
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return pr;
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}
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