144 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			144 lines
		
	
	
		
			4.2 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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| 
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| #include "nvidia-cuda-gs-texture.hpp"
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| #include "obs/gs/gs-helper.hpp"
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| #include "util/util-logging.hpp"
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| 
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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 "<nvidia::cuda::gstexture> "
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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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| 
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| nvidia::cuda::gstexture::~gstexture()
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| {
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| 	D_LOG_DEBUG("Finalizing... (Addr: 0x%" PRIuPTR ")", this);
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| 
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| 	unmap();
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| 	_cuda->cuGraphicsUnregisterResource(_resource);
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| }
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| 
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| nvidia::cuda::gstexture::gstexture(std::shared_ptr<streamfx::obs::gs::texture> texture)
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| 	: _cuda(::nvidia::cuda::cuda::get()), _texture(texture), _resource(), _is_mapped(false), _pointer()
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| {
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| 	D_LOG_DEBUG("Initializating... (Addr: 0x%" PRIuPTR ")", this);
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| 
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| 	if (!texture)
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| 		throw std::invalid_argument("texture");
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| 
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| 	streamfx::obs::gs::context gctx;
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| 	int                        dev_type = gs_get_device_type();
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| 
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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 streamfx::obs::gs::texture::type::Cube:
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| 		case streamfx::obs::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 streamfx::obs::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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| 	_stream    = stream;
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| 	_is_mapped = true;
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| 
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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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| 
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| 	return _pointer;
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| }
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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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| 
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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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| 
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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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| 
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| std::shared_ptr<streamfx::obs::gs::texture> nvidia::cuda::gstexture::get_texture()
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| {
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| 	return _texture;
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| }
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| 
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| ::nvidia::cuda::graphics_resource_t nvidia::cuda::gstexture::get()
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| {
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| 	return _resource;
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| }
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