mirror of https://github.com/Xaymar/obs-StreamFX
115 lines
3.5 KiB
C++
115 lines
3.5 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 "gs-rendertarget.hpp"
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#include <stdexcept>
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#include "obs/gs/gs-helper.hpp"
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streamfx::obs::gs::rendertarget::~rendertarget()
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{
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auto gctx = streamfx::obs::gs::context();
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gs_texrender_destroy(_render_target);
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}
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streamfx::obs::gs::rendertarget::rendertarget(gs_color_format colorFormat, gs_zstencil_format zsFormat)
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: _color_format(colorFormat), _zstencil_format(zsFormat)
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{
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_is_being_rendered = false;
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auto gctx = streamfx::obs::gs::context();
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_render_target = gs_texrender_create(colorFormat, zsFormat);
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if (!_render_target) {
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throw std::runtime_error("Failed to create render target.");
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}
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}
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streamfx::obs::gs::rendertarget_op streamfx::obs::gs::rendertarget::render(uint32_t width, uint32_t height)
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{
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return {this, width, height};
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}
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gs_texture_t* streamfx::obs::gs::rendertarget::get_object()
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{
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auto gctx = streamfx::obs::gs::context();
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gs_texture_t* tex = gs_texrender_get_texture(_render_target);
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return tex;
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}
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std::shared_ptr<streamfx::obs::gs::texture> streamfx::obs::gs::rendertarget::get_texture()
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{
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return std::make_shared<streamfx::obs::gs::texture>(get_object(), false);
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}
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void streamfx::obs::gs::rendertarget::get_texture(streamfx::obs::gs::texture& tex)
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{
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tex = streamfx::obs::gs::texture(get_object(), false);
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}
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void streamfx::obs::gs::rendertarget::get_texture(std::shared_ptr<streamfx::obs::gs::texture>& tex)
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{
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tex = std::make_shared<streamfx::obs::gs::texture>(get_object(), false);
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}
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void streamfx::obs::gs::rendertarget::get_texture(std::unique_ptr<streamfx::obs::gs::texture>& tex)
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{
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tex = std::make_unique<streamfx::obs::gs::texture>(get_object(), false);
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}
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gs_color_format streamfx::obs::gs::rendertarget::get_color_format()
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{
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return _color_format;
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}
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gs_zstencil_format streamfx::obs::gs::rendertarget::get_zstencil_format()
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{
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return _zstencil_format;
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}
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streamfx::obs::gs::rendertarget_op::rendertarget_op(streamfx::obs::gs::rendertarget* rt, uint32_t width,
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uint32_t height)
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: parent(rt)
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{
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if (parent == nullptr)
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throw std::invalid_argument("rt");
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if (parent->_is_being_rendered)
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throw std::logic_error("Can't start rendering to the same render target twice.");
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auto gctx = streamfx::obs::gs::context();
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gs_texrender_reset(parent->_render_target);
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if (!gs_texrender_begin(parent->_render_target, width, height)) {
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throw std::runtime_error("Failed to begin rendering to render target.");
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}
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parent->_is_being_rendered = true;
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}
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streamfx::obs::gs::rendertarget_op::rendertarget_op(streamfx::obs::gs::rendertarget_op&& r)
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{
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this->parent = r.parent;
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r.parent = nullptr;
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}
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streamfx::obs::gs::rendertarget_op::~rendertarget_op()
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{
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if (parent == nullptr)
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return;
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auto gctx = streamfx::obs::gs::context();
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gs_texrender_end(parent->_render_target);
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parent->_is_being_rendered = false;
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}
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