mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-11-15 16:25:06 +00:00
116 lines
3.2 KiB
C++
116 lines
3.2 KiB
C++
/*
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* Modern effects for a modern Streamer
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* Copyright (C) 2020 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 "nvidia-cuda-gs-texture.hpp"
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#include "obs/gs/gs-helper.hpp"
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nvidia::cuda::gstexture::gstexture(std::shared_ptr<nvidia::cuda::cuda> cuda, std::shared_ptr<gs::texture> texture)
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: _cuda(cuda), _texture(texture), _resource(), _is_mapped(false), _pointer()
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{
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if (!texture)
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throw std::invalid_argument("texture");
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if (!cuda)
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throw std::invalid_argument("cuda");
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gs::context gctx;
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int dev_type = gs_get_device_type();
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if (dev_type == GS_DEVICE_OPENGL) {
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// ToDo
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}
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#ifdef WIN32
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if (dev_type == GS_DEVICE_DIRECT3D_11) {
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ID3D11Resource* resource = nullptr;
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switch (_texture->get_type()) {
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case gs::texture::type::Cube:
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case gs::texture::type::Normal: {
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resource = static_cast<ID3D11Resource*>(gs_texture_get_obj(_texture->get_object()));
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break;
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}
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case gs::texture::type::Volume: {
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resource = static_cast<ID3D11Resource*>(gs_texture_get_obj(_texture->get_object()));
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break;
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}
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}
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if (!resource) {
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throw std::runtime_error("nvidia::cuda::gstexture: Failed to get resource from gs::texture.");
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}
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switch (_cuda->cuGraphicsD3D11RegisterResource(&_resource, resource, 0)) {
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case nvidia::cuda::result::SUCCESS:
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break;
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default:
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throw std::runtime_error("nvidia::cuda::gstexture: Failed to register resource.");
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}
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}
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#endif
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}
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nvidia::cuda::gstexture::~gstexture()
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{
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unmap();
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_cuda->cuGraphicsUnregisterResource(_resource);
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}
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nvidia::cuda::array_t nvidia::cuda::gstexture::map(std::shared_ptr<nvidia::cuda::stream> stream)
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{
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if (_is_mapped) {
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return _pointer;
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}
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graphics_resource_t resources[] = {_resource};
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switch (_cuda->cuGraphicsMapResources(1, resources, stream->get())) {
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case nvidia::cuda::result::SUCCESS:
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break;
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default:
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throw std::runtime_error("nvidia::cuda::gstexture: Mapping failed.");
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}
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_stream = stream;
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_is_mapped = true;
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switch (_cuda->cuGraphicsSubResourceGetMappedArray(&_pointer, _resource, 0, 0)) {
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case nvidia::cuda::result::SUCCESS:
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break;
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default:
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unmap();
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throw std::runtime_error("nvidia::cuda::gstexture: Mapping pointer failed.");
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}
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return _pointer;
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}
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void nvidia::cuda::gstexture::unmap()
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{
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if (!_is_mapped)
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return;
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graphics_resource_t resources[] = {_resource};
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switch (_cuda->cuGraphicsUnmapResources(1, resources, _stream->get())) {
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case nvidia::cuda::result::SUCCESS:
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break;
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default:
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throw std::runtime_error("nvidia::cuda::gstexture: Unmapping failed.");
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}
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_is_mapped = false;
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_pointer = nullptr;
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_stream.reset();
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}
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