mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-14 15:55:07 +00:00
100 lines
3.1 KiB
C++
100 lines
3.1 KiB
C++
// 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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#include "gfx-source-texture.hpp"
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#include "obs/gs/gs-helper.hpp"
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#include "obs/obs-tools.hpp"
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#include "warning-disable.hpp"
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#include <stdexcept>
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#include "warning-enable.hpp"
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streamfx::gfx::source_texture::~source_texture()
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{
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if (_child && _parent) {
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obs_source_remove_active_child(_parent.get(), _child.get());
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}
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}
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streamfx::gfx::source_texture::source_texture(streamfx::obs::weak_source child, streamfx::obs::weak_source parent)
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: _parent(parent.lock()), _child(child.lock())
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{
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// Verify that 'child' and 'parent' exist.
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if (!_child || !_parent) {
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throw std::invalid_argument("Child or Parent does not exist.");
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}
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// Verify that 'child' does not contain 'parent'.
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if (::streamfx::obs::tools::source_find_source(_child, _parent)) {
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throw std::runtime_error("Child contains Parent");
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} else if (!obs_source_add_active_child(_parent.get(), _child.get())) {
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throw std::runtime_error("Child contains Parent");
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}
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_rt = std::make_shared<streamfx::obs::gs::rendertarget>(GS_RGBA, GS_ZS_NONE);
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}
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obs_source_t* streamfx::gfx::source_texture::get_object()
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{
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if (_child) {
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return _child.get();
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}
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return nullptr;
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}
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obs_source_t* streamfx::gfx::source_texture::get_parent()
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{
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return _parent.get();
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}
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void streamfx::gfx::source_texture::clear()
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{
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if (_child && _parent) {
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obs_source_remove_active_child(_parent.get(), _child.get());
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}
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_child = {};
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}
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std::shared_ptr<streamfx::obs::gs::texture> streamfx::gfx::source_texture::render(std::size_t width, std::size_t height)
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{
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if ((width == 0) || (width >= 16384)) {
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throw std::runtime_error("Width too large or too small.");
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}
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if ((height == 0) || (height >= 16384)) {
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throw std::runtime_error("Height too large or too small.");
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}
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if (!_child || !_parent) {
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return nullptr;
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}
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if (_child) {
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#ifdef ENABLE_PROFILING
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auto cctr = streamfx::obs::gs::debug_marker(streamfx::obs::gs::debug_color_capture, "gfx::source_texture '%s'",
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obs_source_get_name(_child.get()));
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#endif
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auto op = _rt->render(static_cast<uint32_t>(width), static_cast<uint32_t>(height));
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vec4 black;
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vec4_zero(&black);
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gs_ortho(0, static_cast<float>(width), 0, static_cast<float_t>(height), 0, 1);
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gs_clear(GS_CLEAR_COLOR, &black, 0, 0);
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obs_source_video_render(_child.get());
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}
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std::shared_ptr<streamfx::obs::gs::texture> tex;
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_rt->get_texture(tex);
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return tex;
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}
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