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

163 lines
5.1 KiB
C++
Raw Normal View History

/*
* 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-context.hpp"
#include "util/util-logging.hpp"
#include "warning-disable.hpp"
#include <cassert>
#include <stdexcept>
#include "warning-enable.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::context> "
#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
#ifdef WIN32
#include "warning-disable.hpp"
#include <atlutil.h>
#include "warning-enable.hpp"
#endif
#define ENABLE_STACK_CHECKS
streamfx::nvidia::cuda::context::~context()
{
D_LOG_DEBUG("Finalizing... (Addr: 0x%" PRIuPTR ")", this);
if (_has_device) {
_cuda->cuDevicePrimaryCtxRelease(_device);
} else {
_cuda->cuCtxDestroy(_ctx);
}
}
streamfx::nvidia::cuda::context::context()
: _cuda(::streamfx::nvidia::cuda::cuda::get()), _ctx(), _has_device(false), _device()
2020-11-08 05:47:47 +00:00
{
D_LOG_DEBUG("Initializating... (Addr: 0x%" PRIuPTR ")", this);
}
#ifdef WIN32
streamfx::nvidia::cuda::context::context(ID3D11Device* device) : context()
{
using namespace streamfx::nvidia::cuda;
if (!device)
throw std::invalid_argument("device");
// Get DXGI Device
IDXGIDevice* dxgi_device; // Don't use ATL::CComPtr
device->QueryInterface(__uuidof(IDXGIDevice), (void**)&dxgi_device);
// Get DXGI Adapter
ATL::CComPtr<IDXGIAdapter> dxgi_adapter;
dxgi_device->GetAdapter(&dxgi_adapter);
// Get Device Index
if (result res = _cuda->cuD3D11GetDevice(&_device, dxgi_adapter); res != result::SUCCESS) {
throw std::runtime_error("Failed to get device index for device.");
}
_cuda->cuDevicePrimaryCtxSetFlags(_device, context_flags::SCHEDULER_BLOCKING_SYNC);
// Acquire Context
if (result res = _cuda->cuDevicePrimaryCtxRetain(&_ctx, _device); res != result::SUCCESS) {
throw std::runtime_error("Failed to acquire primary device context.");
}
// Log some information.
std::string device_name;
uuid_t device_uuid;
luid_t device_luid;
uint32_t device_luid_mask;
{
// Device Name
std::vector<char> name(256, 0);
2021-09-07 03:11:04 +00:00
_cuda->cuDeviceGetName(name.data(), static_cast<int32_t>(name.size() - 1), _device);
device_name = std::string(name.data(), name.data() + strlen(name.data()));
// Device LUID
_cuda->cuDeviceGetLuid(&device_luid, &device_luid_mask, _device);
// Device UUID
_cuda->cuDeviceGetUuid(&device_uuid, _device);
}
D_LOG_INFO("Initialized CUDA on device '%s' (%08" PRIx32 "-%04" PRIx16 "-%04" PRIx16 "-%04" PRIx16 "-%04" PRIx16
"%08" PRIx32 ", %08" PRIx64 ", %" PRIu32 ").",
device_name.c_str(), device_uuid.uuid.a, device_uuid.uuid.b, device_uuid.uuid.c, device_uuid.uuid.d,
device_uuid.uuid.e, device_uuid.uuid.f, device_luid.luid, device_luid_mask);
_has_device = true;
}
#endif
::streamfx::nvidia::cuda::context_t streamfx::nvidia::cuda::context::get()
{
return _ctx;
}
std::shared_ptr<::streamfx::nvidia::cuda::context_stack> streamfx::nvidia::cuda::context::enter()
{
return std::make_shared<::streamfx::nvidia::cuda::context_stack>(shared_from_this());
}
void streamfx::nvidia::cuda::context::push()
{
if (auto res = _cuda->cuCtxPushCurrent(_ctx); res != ::streamfx::nvidia::cuda::result::SUCCESS) {
throw ::streamfx::nvidia::cuda::cuda_error(res);
}
}
void streamfx::nvidia::cuda::context::pop()
{
#ifdef ENABLE_STACK_CHECKS
::streamfx::nvidia::cuda::context_t ctx;
if (_cuda->cuCtxGetCurrent(&ctx) == ::streamfx::nvidia::cuda::result::SUCCESS)
assert(ctx == _ctx);
#endif
assert(_cuda->cuCtxPopCurrent(&ctx) == ::streamfx::nvidia::cuda::result::SUCCESS);
}
void streamfx::nvidia::cuda::context::synchronize()
{
//D_LOG_DEBUG("Synchronizing... (Addr: 0x%" PRIuPTR ")", this);
#ifdef ENABLE_STACK_CHECKS
::streamfx::nvidia::cuda::context_t ctx;
if (_cuda->cuCtxGetCurrent(&ctx) == ::streamfx::nvidia::cuda::result::SUCCESS)
assert(ctx == _ctx);
#endif
if (auto res = _cuda->cuCtxSynchronize(); res != ::streamfx::nvidia::cuda::result::SUCCESS) {
throw ::streamfx::nvidia::cuda::cuda_error(res);
}
}