mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-11 06:15:05 +00:00
364 lines
9.3 KiB
C++
364 lines
9.3 KiB
C++
// Modern effects for a modern Streamer
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// Copyright (C) 2019 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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#include "gfx-blur-box-linear.hpp"
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#include <cmath>
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#include <memory>
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#include <stdexcept>
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#include "obs/gs/gs-helper.hpp"
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#include "plugin.hpp"
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#include "util-math.hpp"
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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-module.h>
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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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#define MAX_BLUR_SIZE 128 // Also change this in box-linear.effect if modified.
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gfx::blur::box_linear_data::box_linear_data()
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{
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auto gctx = gs::context();
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try {
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char* file = obs_module_file("effects/blur/box-linear.effect");
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_effect = gs::effect::create(file);
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bfree(file);
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} catch (...) {
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LOG_ERROR("<gfx::blur::box_linear> Failed to load _effect.");
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}
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}
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gfx::blur::box_linear_data::~box_linear_data()
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{
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auto gctx = gs::context();
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_effect.reset();
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}
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gs::effect gfx::blur::box_linear_data::get_effect()
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{
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return _effect;
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}
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gfx::blur::box_linear_factory::box_linear_factory() {}
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gfx::blur::box_linear_factory::~box_linear_factory() {}
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bool gfx::blur::box_linear_factory::is_type_supported(::gfx::blur::type type)
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{
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switch (type) {
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case ::gfx::blur::type::Area:
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return true;
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case ::gfx::blur::type::Directional:
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return true;
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default:
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return false;
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}
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}
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std::shared_ptr<::gfx::blur::base> gfx::blur::box_linear_factory::create(::gfx::blur::type type)
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{
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switch (type) {
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case ::gfx::blur::type::Area:
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return std::make_shared<::gfx::blur::box_linear>();
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case ::gfx::blur::type::Directional:
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return std::make_shared<::gfx::blur::box_linear_directional>();
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default:
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throw std::runtime_error("Invalid type.");
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}
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}
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double_t gfx::blur::box_linear_factory::get_min_size(::gfx::blur::type)
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{
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return double_t(1.0);
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}
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double_t gfx::blur::box_linear_factory::get_step_size(::gfx::blur::type)
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{
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return double_t(1.0);
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}
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double_t gfx::blur::box_linear_factory::get_max_size(::gfx::blur::type)
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{
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return double_t(MAX_BLUR_SIZE);
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}
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double_t gfx::blur::box_linear_factory::get_min_angle(::gfx::blur::type v)
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{
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switch (v) {
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case ::gfx::blur::type::Directional:
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case ::gfx::blur::type::Rotational:
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return -180.0;
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default:
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return 0;
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}
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}
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double_t gfx::blur::box_linear_factory::get_step_angle(::gfx::blur::type)
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{
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return double_t(0.01);
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}
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double_t gfx::blur::box_linear_factory::get_max_angle(::gfx::blur::type v)
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{
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switch (v) {
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case ::gfx::blur::type::Directional:
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case ::gfx::blur::type::Rotational:
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return 180.0;
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default:
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return 0;
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}
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}
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bool gfx::blur::box_linear_factory::is_step_scale_supported(::gfx::blur::type v)
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{
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switch (v) {
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case ::gfx::blur::type::Area:
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case ::gfx::blur::type::Zoom:
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case ::gfx::blur::type::Directional:
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return true;
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default:
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return false;
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}
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}
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double_t gfx::blur::box_linear_factory::get_min_step_scale_x(::gfx::blur::type)
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{
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return double_t(0.01);
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}
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double_t gfx::blur::box_linear_factory::get_step_step_scale_x(::gfx::blur::type)
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{
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return double_t(0.01);
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}
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double_t gfx::blur::box_linear_factory::get_max_step_scale_x(::gfx::blur::type)
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{
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return double_t(1000.0);
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}
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double_t gfx::blur::box_linear_factory::get_min_step_scale_y(::gfx::blur::type)
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{
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return double_t(0.01);
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}
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double_t gfx::blur::box_linear_factory::get_step_step_scale_y(::gfx::blur::type)
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{
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return double_t(0.01);
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}
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double_t gfx::blur::box_linear_factory::get_max_step_scale_y(::gfx::blur::type)
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{
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return double_t(1000.0);
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}
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std::shared_ptr<::gfx::blur::box_linear_data> gfx::blur::box_linear_factory::data()
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{
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std::unique_lock<std::mutex> ulock(_data_lock);
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std::shared_ptr<::gfx::blur::box_linear_data> data = _data.lock();
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if (!data) {
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data = std::make_shared<::gfx::blur::box_linear_data>();
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_data = data;
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}
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return data;
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}
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::gfx::blur::box_linear_factory& gfx::blur::box_linear_factory::get()
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{
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static ::gfx::blur::box_linear_factory instance;
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return instance;
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}
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gfx::blur::box_linear::box_linear()
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: _data(::gfx::blur::box_linear_factory::get().data()), _size(1.), _step_scale({1., 1.})
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{
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_rendertarget = std::make_shared<::gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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_rendertarget2 = std::make_shared<::gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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}
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gfx::blur::box_linear::~box_linear() {}
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void gfx::blur::box_linear::set_input(std::shared_ptr<::gs::texture> texture)
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{
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_input_texture = texture;
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}
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::gfx::blur::type gfx::blur::box_linear::get_type()
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{
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return ::gfx::blur::type::Area;
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}
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double_t gfx::blur::box_linear::get_size()
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{
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return _size;
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}
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void gfx::blur::box_linear::set_size(double_t width)
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{
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_size = width;
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if (_size < 1.0) {
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_size = 1.0;
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}
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if (_size > MAX_BLUR_SIZE) {
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_size = MAX_BLUR_SIZE;
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}
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}
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void gfx::blur::box_linear::set_step_scale(double_t x, double_t y)
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{
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_step_scale = {x, y};
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}
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void gfx::blur::box_linear::get_step_scale(double_t& x, double_t& y)
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{
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x = _step_scale.first;
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y = _step_scale.second;
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}
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double_t gfx::blur::box_linear::get_step_scale_x()
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{
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return _step_scale.first;
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}
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double_t gfx::blur::box_linear::get_step_scale_y()
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{
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return _step_scale.second;
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}
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std::shared_ptr<::gs::texture> gfx::blur::box_linear::render()
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{
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auto gctx = gs::context();
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float_t width = float_t(_input_texture->get_width());
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float_t height = float_t(_input_texture->get_height());
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gs_set_cull_mode(GS_NEITHER);
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gs_enable_color(true, true, true, true);
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gs_enable_depth_test(false);
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gs_depth_function(GS_ALWAYS);
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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(GS_BLEND_ONE, GS_BLEND_ZERO);
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gs_enable_stencil_test(false);
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gs_enable_stencil_write(false);
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gs_stencil_function(GS_STENCIL_BOTH, GS_ALWAYS);
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gs_stencil_op(GS_STENCIL_BOTH, GS_ZERO, GS_ZERO, GS_ZERO);
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// Two Pass Blur
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gs::effect effect = _data->get_effect();
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if (effect) {
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// Pass 1
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effect.get_parameter("pImage").set_texture(_input_texture);
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effect.get_parameter("pImageTexel").set_float2(float_t(1.f / width), 0.f);
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effect.get_parameter("pStepScale").set_float2(float_t(_step_scale.first), float_t(_step_scale.second));
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effect.get_parameter("pSize").set_float(float_t(_size));
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effect.get_parameter("pSizeInverseMul").set_float(float_t(1.0f / (float_t(_size) * 2.0f + 1.0f)));
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{
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auto op = _rendertarget2->render(uint32_t(width), uint32_t(height));
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gs_ortho(0, 1., 0, 1., 0, 1.);
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while (gs_effect_loop(effect.get_object(), "Draw")) {
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gs_draw_sprite(nullptr, 0, 1, 1);
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}
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}
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// Pass 2
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effect.get_parameter("pImage").set_texture(_rendertarget2->get_texture());
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effect.get_parameter("pImageTexel").set_float2(0., float_t(1.f / height));
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{
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auto op = _rendertarget->render(uint32_t(width), uint32_t(height));
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gs_ortho(0, 1., 0, 1., 0, 1.);
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while (gs_effect_loop(effect.get_object(), "Draw")) {
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gs_draw_sprite(nullptr, 0, 1, 1);
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}
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}
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}
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gs_blend_state_pop();
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return _rendertarget->get_texture();
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}
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std::shared_ptr<::gs::texture> gfx::blur::box_linear::get()
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{
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return _rendertarget->get_texture();
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}
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gfx::blur::box_linear_directional::box_linear_directional() : _angle(0) {}
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::gfx::blur::type gfx::blur::box_linear_directional::get_type()
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{
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return ::gfx::blur::type::Directional;
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}
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double_t gfx::blur::box_linear_directional::get_angle()
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{
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return D_RAD_TO_DEG(_angle);
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}
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void gfx::blur::box_linear_directional::set_angle(double_t angle)
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{
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_angle = D_DEG_TO_RAD(angle);
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}
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std::shared_ptr<::gs::texture> gfx::blur::box_linear_directional::render()
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{
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auto gctx = gs::context();
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float_t width = float_t(_input_texture->get_width());
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float_t height = float_t(_input_texture->get_height());
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gs_blend_state_push();
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gs_reset_blend_state();
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gs_enable_color(true, true, true, true);
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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_set_cull_mode(GS_NEITHER);
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gs_depth_function(GS_ALWAYS);
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gs_blend_function(GS_BLEND_ONE, GS_BLEND_ZERO);
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gs_stencil_function(GS_STENCIL_BOTH, GS_ALWAYS);
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gs_stencil_op(GS_STENCIL_BOTH, GS_ZERO, GS_ZERO, GS_ZERO);
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// One Pass Blur
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gs::effect effect = _data->get_effect();
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if (effect) {
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effect.get_parameter("pImage").set_texture(_input_texture);
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effect.get_parameter("pImageTexel")
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.set_float2(float_t(1. / width * cos(_angle)), float_t(1.f / height * sin(_angle)));
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effect.get_parameter("pStepScale").set_float2(float_t(_step_scale.first), float_t(_step_scale.second));
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effect.get_parameter("pSize").set_float(float_t(_size));
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effect.get_parameter("pSizeInverseMul").set_float(float_t(1.0f / (float_t(_size) * 2.0f + 1.0f)));
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{
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auto op = _rendertarget->render(uint32_t(width), uint32_t(height));
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gs_ortho(0, 1., 0, 1., 0, 1.);
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while (gs_effect_loop(effect.get_object(), "Draw")) {
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gs_draw_sprite(nullptr, 0, 1, 1);
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}
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}
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}
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gs_blend_state_pop();
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return _rendertarget->get_texture();
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}
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