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obs-streamFX/source/nvidia/cv/nvidia-cv.cpp

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// Copyright (c) 2020 Michael Fabian Dirks <info@xaymar.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
// NVIDIA CVImage is part of:
// - NVIDIA Video Effects SDK
// - NVIDIA Augmented Reality SDK
#include "nvidia-cv.hpp"
#include <filesystem>
#include <mutex>
#include "nvidia/cuda/nvidia-cuda-obs.hpp"
#include "obs/gs/gs-helper.hpp"
#include "util/util-logging.hpp"
#include "util/util-platform.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::cv::cv> "
#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)
#include <KnownFolders.h>
#include <ShlObj.h>
#include <Windows.h>
#define LIB_NAME "NVCVImage.dll"
#else
#define LIB_NAME "libNVCVImage.so"
#endif
#define ST_ENV_NVIDIA_AR_SDK_PATH L"NV_AR_SDK_PATH"
#define ST_ENV_NVIDIA_VIDEO_EFFECTS_SDK_PATH L"NV_VIDEO_EFFECTS_PATH"
#define NVCVI_LOAD_SYMBOL(NAME) \
{ \
NAME = reinterpret_cast<decltype(NAME)>(_library->load_symbol(#NAME)); \
if (!NAME) \
throw std::runtime_error("Failed to load '" #NAME "' from '" LIB_NAME "'."); \
}
streamfx::nvidia::cv::cv::~cv()
{
D_LOG_DEBUG("Finalizing... (Addr: 0x%" PRIuPTR ")", this);
#ifdef WIN32
// Remove the DLL directory from the library loader paths.
if (_extra != nullptr) {
RemoveDllDirectory(reinterpret_cast<DLL_DIRECTORY_COOKIE>(_extra));
}
#endif
}
streamfx::nvidia::cv::cv::cv()
{
std::filesystem::path vfx_sdk_path;
std::filesystem::path ar_sdk_path;
std::vector<std::filesystem::path> lib_paths;
auto gctx = ::streamfx::obs::gs::context();
auto cctx = ::streamfx::nvidia::cuda::obs::get()->get_context()->enter();
D_LOG_DEBUG("Initializing... (Addr: 0x%" PRIuPTR ")", this);
// Figure out the location of supported SDKs.
{
#ifdef WIN32
DWORD env_size;
std::vector<wchar_t> buffer;
env_size = GetEnvironmentVariableW(ST_ENV_NVIDIA_VIDEO_EFFECTS_SDK_PATH, nullptr, 0);
if (env_size > 0) {
buffer.resize(static_cast<size_t>(env_size) + 1);
env_size = GetEnvironmentVariableW(ST_ENV_NVIDIA_VIDEO_EFFECTS_SDK_PATH, buffer.data(),
static_cast<DWORD>(buffer.size()));
vfx_sdk_path = std::wstring(buffer.data(), buffer.size());
} else {
PWSTR str = nullptr;
HRESULT res = SHGetKnownFolderPath(FOLDERID_ProgramFiles, KF_FLAG_DEFAULT, nullptr, &str);
if (res == S_OK) {
vfx_sdk_path = std::wstring(str);
vfx_sdk_path /= "NVIDIA Corporation";
vfx_sdk_path /= "NVIDIA Video Effects";
CoTaskMemFree(str);
}
}
#else
throw std::runtime_error("Not yet implemented.");
#endif
// Check if any of the found paths are valid.
if (std::filesystem::exists(vfx_sdk_path)) {
lib_paths.push_back(vfx_sdk_path);
}
}
{
#ifdef WIN32
DWORD env_size;
std::vector<wchar_t> buffer;
env_size = GetEnvironmentVariableW(ST_ENV_NVIDIA_AR_SDK_PATH, nullptr, 0);
if (env_size > 0) {
buffer.resize(static_cast<size_t>(env_size) + 1);
env_size =
GetEnvironmentVariableW(ST_ENV_NVIDIA_AR_SDK_PATH, buffer.data(), static_cast<DWORD>(buffer.size()));
ar_sdk_path = std::wstring(buffer.data(), buffer.size());
} else {
PWSTR str = nullptr;
HRESULT res = SHGetKnownFolderPath(FOLDERID_ProgramFiles, KF_FLAG_DEFAULT, nullptr, &str);
if (res == S_OK) {
ar_sdk_path = std::wstring(str);
ar_sdk_path /= "NVIDIA Corporation";
ar_sdk_path /= "NVIDIA AR SDK";
CoTaskMemFree(str);
}
}
#else
throw std::runtime_error("Not yet implemented.");
#endif
// Check if any of the found paths are valid.
if (std::filesystem::exists(ar_sdk_path)) {
lib_paths.push_back(ar_sdk_path);
}
}
// Check if we have any found paths.
if (lib_paths.size() == 0) {
D_LOG_ERROR("No supported NVIDIA SDK is installed to provide '%s'.", LIB_NAME);
throw std::runtime_error("Failed to load '" LIB_NAME "'.");
}
// Try and load any available NvCVImage library.
for (auto path : lib_paths) {
#ifdef WIN32
// Add the DLL directory to the library loader paths, if possible.
DLL_DIRECTORY_COOKIE ck = AddDllDirectory(vfx_sdk_path.wstring().c_str());
_extra = reinterpret_cast<void*>(ck);
if (ck == 0) {
DWORD ec = GetLastError();
std::string error;
{
LPWSTR str;
FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER
| FORMAT_MESSAGE_IGNORE_INSERTS,
nullptr, ec, MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US),
reinterpret_cast<LPWSTR>(&str), 0, nullptr);
error = ::streamfx::util::platform::native_to_utf8(std::wstring(str));
LocalFree(str);
}
D_LOG_WARNING("Failed to add '%'s to the library loader paths with error: %s (Code %" PRIu32 ")",
vfx_sdk_path.string().c_str(), error.c_str(), ec);
}
#endif
// Try to load it directly first, it may be on the search path already.
try {
_library = ::streamfx::util::library::load(std::string_view(LIB_NAME));
} catch (...) {
auto pathu8 = util::platform::native_to_utf8(path / LIB_NAME);
try {
_library = ::streamfx::util::library::load(pathu8);
} catch (...) {
D_LOG_WARNING("Failed to load '%s' from '%s'.", LIB_NAME, pathu8.string().c_str());
}
}
// If we were successful at loading it, break out.
if (_library) {
break;
}
#ifdef WIN32
// Remove the DLL directory from the library loader paths if we added it.
if (ck != 0) {
RemoveDllDirectory(ck);
}
#endif
}
if (!_library) {
D_LOG_ERROR("No installed NVIDIA SDK provides '%s'.", LIB_NAME);
throw std::runtime_error("Failed to load '" LIB_NAME "'.");
}
{ // Load Symbols
NVCVI_LOAD_SYMBOL(NvCVImage_Init);
NVCVI_LOAD_SYMBOL(NvCVImage_InitView);
NVCVI_LOAD_SYMBOL(NvCVImage_Alloc);
NVCVI_LOAD_SYMBOL(NvCVImage_Realloc);
NVCVI_LOAD_SYMBOL(NvCVImage_Dealloc);
NVCVI_LOAD_SYMBOL(NvCVImage_Create);
NVCVI_LOAD_SYMBOL(NvCVImage_Destroy);
NVCVI_LOAD_SYMBOL(NvCVImage_ComponentOffsets);
NVCVI_LOAD_SYMBOL(NvCVImage_Transfer);
NVCVI_LOAD_SYMBOL(NvCVImage_TransferRect);
NVCVI_LOAD_SYMBOL(NvCVImage_TransferFromYUV);
NVCVI_LOAD_SYMBOL(NvCVImage_TransferToYUV);
NVCVI_LOAD_SYMBOL(NvCVImage_MapResource);
NVCVI_LOAD_SYMBOL(NvCVImage_UnmapResource);
NVCVI_LOAD_SYMBOL(NvCVImage_Composite);
NVCVI_LOAD_SYMBOL(NvCVImage_CompositeRect);
NVCVI_LOAD_SYMBOL(NvCVImage_CompositeOverConstant);
NVCVI_LOAD_SYMBOL(NvCVImage_FlipY);
NVCVI_LOAD_SYMBOL(NvCVImage_GetYUVPointers);
NVCVI_LOAD_SYMBOL(NvCV_GetErrorStringFromCode);
#ifdef WIN32
NVCVI_LOAD_SYMBOL(NvCVImage_InitFromD3D11Texture);
NVCVI_LOAD_SYMBOL(NvCVImage_ToD3DFormat);
NVCVI_LOAD_SYMBOL(NvCVImage_FromD3DFormat);
#ifdef __dxgicommon_h__
NVCVI_LOAD_SYMBOL(NvCVImage_ToD3DColorSpace);
NVCVI_LOAD_SYMBOL(NvCVImage_FromD3DColorSpace);
#endif
#endif
}
}
std::shared_ptr<streamfx::nvidia::cv::cv> streamfx::nvidia::cv::cv::get()
{
static std::weak_ptr<streamfx::nvidia::cv::cv> instance;
static std::mutex lock;
std::unique_lock<std::mutex> ul(lock);
if (instance.expired()) {
auto hard_instance = std::make_shared<streamfx::nvidia::cv::cv>();
instance = hard_instance;
return hard_instance;
}
return instance.lock();
}
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