Add visual samples.

1 files changed, 210 insertions, 0 deletions

diff --git a/NvCloth/samples/SampleBase/renderer/ResourceManager.cpp b/NvCloth/samples/SampleBase/renderer/ResourceManager.cpp
new file mode 100644
index 0000000..fc76e1c
--- /dev/null
+++ b/NvCloth/samples/SampleBase/renderer/ResourceManager.cpp
@@ -0,0 +1,210 @@
+/*
+* Copyright (c) 2008-2017, NVIDIA CORPORATION.  All rights reserved.
+*
+* NVIDIA CORPORATION and its licensors retain all intellectual property
+* and proprietary rights in and to this software, 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.
+*/
+
+#include "ResourceManager.h"
+#include "PxAssert.h"
+#include "Utils.h"
+
+#include <windows.h>
+#include <string.h>
+
+
+#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];
+	::snprintf(tmp, sizeof(tmp), "%s\\*", path);
+	HANDLE hFind = FindFirstFileA(tmp, &ffd);
+
+	if(INVALID_HANDLE_VALUE == hFind)
+	{
+		return NULL;
+	}
+
+	do
+	{
+		if (0 == ::strcmp(".", ffd.cFileName) || 0 == ::strcmp("..", ffd.cFileName))
+			continue;
+
+		if(ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+		{
+			::snprintf(tmp, sizeof(tmp), "%s\\%s", path, ffd.cFileName);
+			if(findFileInDir(fileNameFull, tmp, recursive, foundPath))
+				return true;
+		}
+		else if (::stricmp(ffd.cFileName, fileNameFull.c_str()) == 0)
+		{
+			::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 };
+
+			::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;
+	}
+}
+