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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2008-2020 NVIDIA Corporation. All rights reserved.
#include "ResourceManager.h"
#include "PxAssert.h"
#include "PsString.h"
#include "Utils.h"
#include <windows.h>
using namespace physx;
#define PATH_MAX_LEN 512
ResourceManager::ResourceManager()
{
// search for root folder by default
addSearchDir(".");
}
const ShaderFileResource* ResourceManager::requestShaderFile(const char* name)
{
const Resource* resource = requestResource(eSHADER_FILE, name);
return resource != nullptr ? static_cast<const ShaderFileResource*>(resource) : nullptr;
}
const TextureResource* ResourceManager::requestTexture(const char* name)
{
const Resource* resource = requestResource(eTEXTURE, name);
return resource != nullptr ? static_cast<const TextureResource*>(resource) : nullptr;
}
const Resource* ResourceManager::requestResource(ResourceType type, const char* name)
{
// search in loaded
std::pair<ResourceType, std::string> key(type, name);
auto val = m_loadedResources.find(key);
if (val != m_loadedResources.end())
{
return val->second.get();
}
std::shared_ptr<Resource> resource;
if (type == eSHADER_FILE)
{
char path[PATH_MAX_LEN];
const char* exts[] = { "hlsl" };
if (findFile(name, std::vector<const char*>(exts, exts + sizeof(exts) / sizeof(exts[0])), path))
{
resource = std::shared_ptr<Resource>(new ShaderFileResource(path));
}
else
{
PX_ALWAYS_ASSERT_MESSAGE(name);
}
}
else if (type == eTEXTURE)
{
char path[PATH_MAX_LEN];
const char* exts[] = { "dds", "tga" };
if (findFile(name, std::vector<const char*>(exts, exts + sizeof(exts) / sizeof(exts[0])), path))
{
std::shared_ptr<TextureResource> textureResource(new TextureResource());
WCHAR wPath[MAX_PATH];
MultiByteToWideChar(CP_ACP, 0, path, -1, wPath, MAX_PATH);
wPath[MAX_PATH - 1] = 0;
const char* ext = strext(path);
if (::strcmp(ext, "dds") == 0)
{
V(DirectX::LoadFromDDSFile(wPath, DirectX::DDS_FLAGS_NONE, &textureResource->metaData,
textureResource->image));
}
else if (::strcmp(ext, "tga") == 0)
{
V(DirectX::LoadFromTGAFile(wPath, &textureResource->metaData,
textureResource->image));
}
else
{
PX_ALWAYS_ASSERT_MESSAGE("Unsupported texture extension");
}
resource = textureResource;
}
}
if (resource.get())
{
m_loadedResources.emplace(key, resource);
return resource.get();
}
else
{
PX_ALWAYS_ASSERT_MESSAGE(name);
return nullptr;
}
}
bool dirExists(const char* dir)
{
DWORD ftyp = GetFileAttributesA(dir);
if (ftyp == INVALID_FILE_ATTRIBUTES)
return false; // something is wrong with path!
if (ftyp & FILE_ATTRIBUTE_DIRECTORY)
return true; // this is a directory!
return false; // this is not a directory!
}
bool ResourceManager::addSearchDir(const char* dir, bool recursive)
{
if (dirExists(dir))
{
m_searchDirs.push_back(SearchDir(dir, recursive));
return true;
}
return false;
}
ResourceManager::~ResourceManager()
{
}
bool ResourceManager::findFileInDir(std::string fileNameFull, const char* path, bool recursive, char* foundPath)
{
WIN32_FIND_DATAA ffd;
char tmp[PATH_MAX_LEN];
shdfnd::snprintf(tmp, sizeof(tmp), "%s\\*", path);
HANDLE hFind = FindFirstFileA(tmp, &ffd);
if(INVALID_HANDLE_VALUE == hFind)
{
return NULL;
}
do
{
if (0 == shdfnd::strcmp(".", ffd.cFileName) || 0 == shdfnd::strcmp("..", ffd.cFileName))
continue;
if(ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
shdfnd::snprintf(tmp, sizeof(tmp), "%s\\%s", path, ffd.cFileName);
if(findFileInDir(fileNameFull, tmp, recursive, foundPath))
return true;
}
else if (shdfnd::stricmp(ffd.cFileName, fileNameFull.c_str()) == 0)
{
shdfnd::snprintf(foundPath, PATH_MAX_LEN, "%s\\%s", path, ffd.cFileName);
return true;
}
} while(FindNextFileA(hFind, &ffd) != 0);
// release handle
FindClose(hFind);
return false;
}
bool ResourceManager::findFile(std::string fileName, const std::vector<const char*>& exts, char* foundPath)
{
std::string fileNameOnly = fileName;
size_t ind = fileNameOnly.find_last_of('/');
if (ind > 0)
fileNameOnly = fileNameOnly.substr(ind + 1);
for(size_t i = 0; i < m_searchDirs.size(); i++)
{
const SearchDir& searchDir = m_searchDirs[i];
for(size_t j = 0; j < exts.size(); j++)
{
const char* ext = exts[j];
const uint32_t fileMaxLen = 128;
char fileNameFull[fileMaxLen] = { 0 };
physx::shdfnd::snprintf(fileNameFull, fileMaxLen, "%s.%s", fileNameOnly.c_str(), ext);
if(findFileInDir(fileNameFull, searchDir.path.c_str(), searchDir.recursive, foundPath))
return true;
}
if (findFileInDir(fileNameOnly.c_str(), searchDir.path.c_str(), searchDir.recursive, foundPath))
return true;
}
return false;
}
bool ResourceManager::findFile(std::string fileName, std::string& foundPath)
{
std::vector<const char*> exts;
char path[PATH_MAX_LEN];
if (findFile(fileName, exts, path))
{
foundPath = path;
return true;
}
else
{
return false;
}
}
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