obs-StreamFX/source/nvidia/cuda/nvidia-cuda.cpp

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/*
* Modern effects for a modern Streamer
* Copyright (C) 2020 Michael Fabian Dirks
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "nvidia-cuda.hpp"
#include <mutex>
#include "util/util-logging.hpp"
#ifdef _DEBUG
#define ST_PREFIX "<%s> "
#define D_LOG_ERROR(x, ...) P_LOG_ERROR(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_WARNING(x, ...) P_LOG_WARN(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_INFO(x, ...) P_LOG_INFO(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#define D_LOG_DEBUG(x, ...) P_LOG_DEBUG(ST_PREFIX##x, __FUNCTION_SIG__, __VA_ARGS__)
#else
#define ST_PREFIX "<nvidia::cuda::cuda> "
#define D_LOG_ERROR(...) P_LOG_ERROR(ST_PREFIX __VA_ARGS__)
#define D_LOG_WARNING(...) P_LOG_WARN(ST_PREFIX __VA_ARGS__)
#define D_LOG_INFO(...) P_LOG_INFO(ST_PREFIX __VA_ARGS__)
#define D_LOG_DEBUG(...) P_LOG_DEBUG(ST_PREFIX __VA_ARGS__)
#endif
#if defined(_WIN32) || defined(_WIN64)
#define CUDA_NAME "nvcuda.dll"
#else
#define CUDA_NAME "libcuda.so.1"
#endif
#define CUDA_LOAD_SYMBOL(NAME) \
{ \
NAME = reinterpret_cast<decltype(NAME)>(_library->load_symbol(#NAME)); \
if (!NAME) \
throw std::runtime_error("Failed to load '" #NAME "' from '" CUDA_NAME "'."); \
}
#define CUDA_LOAD_SYMBOL_V2(NAME) \
{ \
NAME = reinterpret_cast<decltype(NAME)>(_library->load_symbol(#NAME "_v2")); \
if (!NAME) \
throw std::runtime_error("Failed to load '" #NAME "' from '" CUDA_NAME "'."); \
}
#define CUDA_LOAD_SYMBOL_EX(NAME, OVERRIDE) \
{ \
NAME = reinterpret_cast<decltype(NAME)>(_library->load_symbol(#OVERRIDE)); \
if (!NAME) \
throw std::runtime_error("Failed to load '" #NAME "' from '" CUDA_NAME "'."); \
}
nvidia::cuda::cuda::~cuda()
{
D_LOG_DEBUG("Finalizing... (Addr: 0x%" PRIuPTR ")", this);
}
nvidia::cuda::cuda::cuda() : _library()
{
D_LOG_DEBUG("Initialization... (Addr: 0x%" PRIuPTR ")", this);
_library = util::library::load(std::string_view(CUDA_NAME));
// Initialization
CUDA_LOAD_SYMBOL(cuInit);
// Version Management
CUDA_LOAD_SYMBOL(cuDriverGetVersion);
// Primary Context Management
CUDA_LOAD_SYMBOL(cuDevicePrimaryCtxRetain);
CUDA_LOAD_SYMBOL_V2(cuDevicePrimaryCtxRelease);
CUDA_LOAD_SYMBOL_V2(cuDevicePrimaryCtxSetFlags);
// Context Management
CUDA_LOAD_SYMBOL_V2(cuCtxCreate);
CUDA_LOAD_SYMBOL_V2(cuCtxDestroy);
CUDA_LOAD_SYMBOL(cuCtxGetCurrent);
CUDA_LOAD_SYMBOL(cuCtxGetStreamPriorityRange);
CUDA_LOAD_SYMBOL_V2(cuCtxPopCurrent);
CUDA_LOAD_SYMBOL_V2(cuCtxPushCurrent);
CUDA_LOAD_SYMBOL(cuCtxSetCurrent);
CUDA_LOAD_SYMBOL(cuCtxSynchronize);
// Memory Management
CUDA_LOAD_SYMBOL_V2(cuArrayGetDescriptor);
CUDA_LOAD_SYMBOL_V2(cuMemAlloc);
CUDA_LOAD_SYMBOL_V2(cuMemAllocPitch);
CUDA_LOAD_SYMBOL_V2(cuMemFree);
CUDA_LOAD_SYMBOL_V2(cuMemHostGetDevicePointer);
CUDA_LOAD_SYMBOL(cuMemcpy);
CUDA_LOAD_SYMBOL_V2(cuMemcpy2D);
CUDA_LOAD_SYMBOL_V2(cuMemcpy2DAsync);
CUDA_LOAD_SYMBOL_V2(cuMemcpyAtoA);
CUDA_LOAD_SYMBOL_V2(cuMemcpyAtoD);
CUDA_LOAD_SYMBOL_V2(cuMemcpyAtoH);
CUDA_LOAD_SYMBOL_V2(cuMemcpyAtoHAsync);
CUDA_LOAD_SYMBOL_V2(cuMemcpyDtoA);
CUDA_LOAD_SYMBOL_V2(cuMemcpyDtoD);
CUDA_LOAD_SYMBOL_V2(cuMemcpyDtoH);
CUDA_LOAD_SYMBOL_V2(cuMemcpyDtoHAsync);
CUDA_LOAD_SYMBOL_V2(cuMemcpyHtoA);
CUDA_LOAD_SYMBOL_V2(cuMemcpyHtoAAsync);
CUDA_LOAD_SYMBOL_V2(cuMemcpyHtoD);
CUDA_LOAD_SYMBOL_V2(cuMemcpyHtoDAsync);
// Stream Managment
CUDA_LOAD_SYMBOL(cuStreamCreate);
CUDA_LOAD_SYMBOL(cuStreamCreateWithPriority);
CUDA_LOAD_SYMBOL_V2(cuStreamDestroy);
CUDA_LOAD_SYMBOL(cuStreamSynchronize);
// Graphics Interoperability
CUDA_LOAD_SYMBOL(cuGraphicsMapResources);
CUDA_LOAD_SYMBOL(cuGraphicsSubResourceGetMappedArray);
CUDA_LOAD_SYMBOL(cuGraphicsUnmapResources);
CUDA_LOAD_SYMBOL(cuGraphicsUnregisterResource);
#ifdef WIN32
// Direct3D11 Interopability
CUDA_LOAD_SYMBOL(cuD3D11GetDevice);
CUDA_LOAD_SYMBOL(cuGraphicsD3D11RegisterResource);
#endif
// Initialize CUDA
cuInit(0);
}
std::shared_ptr<nvidia::cuda::cuda> nvidia::cuda::cuda::get()
{
static std::weak_ptr<nvidia::cuda::cuda> instance;
static std::mutex lock;
std::unique_lock<std::mutex> ul(lock);
if (instance.expired()) {
auto hard_instance = std::make_shared<nvidia::cuda::cuda>();
instance = hard_instance;
return hard_instance;
}
return instance.lock();
}