mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-14 07:45:06 +00:00
253 lines
7 KiB
C++
253 lines
7 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 "strings.hpp"
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#include <stdexcept>
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#include "obs/gs/gs-helper.hpp"
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#include "util/util-logging.hpp"
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#ifdef _DEBUG
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#define ST_PREFIX "<%s> "
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#define D_LOG_ERROR(x, ...) P_LOG_ERROR(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
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#define D_LOG_WARNING(x, ...) P_LOG_WARN(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
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#define D_LOG_INFO(x, ...) P_LOG_INFO(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
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#define D_LOG_DEBUG(x, ...) P_LOG_DEBUG(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
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#else
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#define ST_PREFIX "<filter::shader> "
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#define D_LOG_ERROR(...) P_LOG_ERROR(ST_PREFIX __VA_ARGS__)
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#define D_LOG_WARNING(...) P_LOG_WARN(ST_PREFIX __VA_ARGS__)
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#define D_LOG_INFO(...) P_LOG_INFO(ST_PREFIX __VA_ARGS__)
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#define D_LOG_DEBUG(...) P_LOG_DEBUG(ST_PREFIX __VA_ARGS__)
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#endif
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#define ST_I18N "Filter.Shader"
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using namespace streamfx::filter::shader;
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static constexpr std::string_view HELP_URL =
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"https://github.com/Xaymar/obs-StreamFX/wiki/Source-Filter-Transition-Shader";
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shader_instance::shader_instance(obs_data_t* data, obs_source_t* self) : obs::source_instance(data, self)
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{
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_fx = std::make_shared<streamfx::gfx::shader::shader>(self, streamfx::gfx::shader::shader_mode::Filter);
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_rt = std::make_shared<streamfx::obs::gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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update(data);
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}
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shader_instance::~shader_instance() {}
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uint32_t 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 shader_instance::get_height()
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{
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return _fx->height();
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}
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void 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 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 shader_instance::migrate(obs_data_t* data, uint64_t version) {}
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void 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 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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if (obs_source_t* tgt = obs_filter_get_target(_self); tgt != nullptr) {
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_fx->set_size(obs_source_get_base_width(tgt), obs_source_get_base_height(tgt));
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} else if (obs_source* src = obs_filter_get_parent(_self); src != nullptr) {
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_fx->set_size(obs_source_get_base_width(src), obs_source_get_base_height(src));
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}
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}
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void shader_instance::video_render(gs_effect_t* effect)
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{
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try {
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if (!_fx || !_fx->base_width() || !_fx->base_height()) {
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throw std::runtime_error("No effect, or invalid base size.");
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}
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#ifdef ENABLE_PROFILING
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streamfx::obs::gs::debug_marker gdmp{streamfx::obs::gs::debug_color_source, "Shader Filter '%s' on '%s'",
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obs_source_get_name(_self),
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obs_source_get_name(obs_filter_get_parent(_self))};
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#endif
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{
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#ifdef ENABLE_PROFILING
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streamfx::obs::gs::debug_marker gdm{streamfx::obs::gs::debug_color_source, "Cache"};
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#endif
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auto op = _rt->render(_fx->base_width(), _fx->base_height());
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gs_ortho(0, 1, 0, 1, -1, 1);
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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_blend_function_separate(GS_BLEND_ONE, GS_BLEND_ZERO, GS_BLEND_SRCALPHA, GS_BLEND_ZERO);
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gs_enable_blending(false);
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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), 1, 1);
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gs_blend_state_pop();
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} else {
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throw std::runtime_error("Failed to render previous source.");
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}
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}
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{
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#ifdef ENABLE_PROFILING
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streamfx::obs::gs::debug_marker gdm{streamfx::obs::gs::debug_color_render, "Render"};
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#endif
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_fx->prepare_render();
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_fx->set_input_a(_rt->get_texture());
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_fx->render(effect);
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}
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} catch (const std::exception& ex) {
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obs_source_skip_video_filter(_self);
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throw ex;
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}
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}
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void streamfx::filter::shader::shader_instance::show()
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{
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_fx->set_visible(true);
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}
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void streamfx::filter::shader::shader_instance::hide()
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{
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_fx->set_visible(false);
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}
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void streamfx::filter::shader::shader_instance::activate()
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{
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_fx->set_active(true);
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}
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void streamfx::filter::shader::shader_instance::deactivate()
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{
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_fx->set_active(false);
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}
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shader_factory::shader_factory()
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{
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_info.id = S_PREFIX "filter-shader";
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_info.type = OBS_SOURCE_TYPE_FILTER;
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_info.output_flags = OBS_SOURCE_VIDEO;
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support_activity_tracking(true);
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support_visibility_tracking(true);
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finish_setup();
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register_proxy("obs-stream-effects-filter-shader");
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}
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shader_factory::~shader_factory() {}
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const char* shader_factory::get_name()
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{
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return D_TRANSLATE(ST_I18N);
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}
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void shader_factory::get_defaults2(obs_data_t* data)
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{
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streamfx::gfx::shader::shader::defaults(data);
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}
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obs_properties_t* 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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#ifdef ENABLE_FRONTEND
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{
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auto p = obs_properties_add_button2(pr, S_MANUAL_OPEN, D_TRANSLATE(S_MANUAL_OPEN),
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streamfx::filter::shader::shader_factory::on_manual_open, nullptr);
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}
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#endif
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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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#ifdef ENABLE_FRONTEND
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bool shader_factory::on_manual_open(obs_properties_t* props, obs_property_t* property, void* data)
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try {
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streamfx::open_url(HELP_URL);
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return false;
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} catch (const std::exception& ex) {
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D_LOG_ERROR("Failed to open manual due to error: %s", ex.what());
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return false;
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} catch (...) {
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D_LOG_ERROR("Failed to open manual due to unknown error.", "");
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return false;
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}
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#endif
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std::shared_ptr<shader_factory> _filter_shader_factory_instance = nullptr;
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void streamfx::filter::shader::shader_factory::initialize()
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try {
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if (!_filter_shader_factory_instance)
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_filter_shader_factory_instance = std::make_shared<shader_factory>();
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} catch (const std::exception& ex) {
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D_LOG_ERROR("Failed to initialize due to error: %s", ex.what());
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} catch (...) {
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D_LOG_ERROR("Failed to initialize due to unknown error.", "");
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}
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void streamfx::filter::shader::shader_factory::finalize()
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{
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_filter_shader_factory_instance.reset();
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}
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std::shared_ptr<shader_factory> streamfx::filter::shader::shader_factory::get()
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{
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return _filter_shader_factory_instance;
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}
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