started working on ini parser

.gitmodules

@@ -16,3 +16,9 @@
 [submodule "external/GameNetworkingSockets"]
 	path = external/GameNetworkingSockets
 	url = https://github.com/ValveSoftware/GameNetworkingSockets.git
+[submodule "external/volk"]
+	path = external/volk
+	url = https://github.com/zeux/volk
+[submodule "external/Vulkan-Utility-Libraries"]
+	path = external/Vulkan-Utility-Libraries
+	url = https://github.com/KhronosGroup/Vulkan-Utility-Libraries

build.cpp

@@ -1,11 +1,14 @@
-#include "build/tools/public/target.h"
 #include "target.h"
-#include "tier1/utlstring.h"
 #include "helper.h"
+#include "tier1/utlstring.h"
+
 
 CUtlVector<CUtlString> all_IncludeDirectories = {
 	"public",
 	"external",
+	"external/Vulkan-Headers/include",
+	"external/Vulkan-Utility-Libraries/include",
+	"external/volk",
 	"external/cglm/include",
 	"external/stb",
 	"external/SDL/include",
@@ -71,6 +74,7 @@ CUtlString client_lib;
 
 #include "tier0/__build.cpp"
 #include "tier1/__build.cpp"
+#include "tier2/__build.cpp"
 
 #include "game/server/__build.cpp"
 #include "game/client/__build.cpp"

engine/__build.cpp

@@ -7,9 +7,7 @@
 CUtlVector<CUtlString> engine_CompiledFiles = {
 	"engine/engine.cpp",
 	"engine/cvar.cpp",
-	"engine/filesystem.cpp",
 	"engine/filesystem_pak.cpp",
-	"engine/filesystem_libc.cpp",
 	
 	"engine/gamewindow_sdl.cpp",
 	
@@ -38,7 +36,9 @@ DECLARE_BUILD_STAGE(engine)
 	else
 	{
 		ldProject.objects.AppendTail((Object_t){tier1_lib});
+		ldProject.objects.AppendTail((Object_t){tier2_lib});
 		ldProject.objects.AppendTail((Object_t){rapier_lib});
+		ldProject.objects.AppendTail((Object_t){material_lib});
 		if (bSteam)
 			ldProject.objects.AppendTail((Object_t){steam_lib});
 		ldProject.linkType = ELINK_DYNAMIC_LIBRARY;

engine/cvar.cpp

@@ -0,0 +1,338 @@
+#include "icvar.h"
+#include "tier2/ifilesystem.h"
+#include "tier1/utlstring.h"
+#include "tier1/utlvector.h"
+#include "stdarg.h"
+
+
+enum EConsoleMessageType
+{
+	CONSOLE_MESSAGE_TYPE_MESSAGE,
+	CONSOLE_MESSAGE_TYPE_WARNING,
+	CONSOLE_MESSAGE_TYPE_ERROR,
+};
+
+struct ConsoleMessage_t
+{
+	EConsoleMessageType type;
+	CUtlString szMessage;
+};
+
+void Msg( const char* message )
+{
+	printf(message);
+
+}
+
+void Warning( const char* message )
+{
+
+}
+
+void Error( const char* message )
+{
+
+}
+
+class CConsole: public IConsole 
+{
+public:
+	virtual void Init() override;
+	virtual void Shutdown() override;
+
+	// Variables
+	virtual void RegisterVar( ConVar *cvar ) override;
+	virtual void UnRegisterVar( ConVar *cvar ) override;
+	virtual ConVar *FindVar( const char *pName ) override;
+
+	// Commands
+	virtual void RegisterCommand( ConCommand *cvar ) override;
+	virtual void UnRegisterCommand( ConCommand *cvar ) override;
+	virtual ConCommand *FindCommand( const char *pName ) override;
+
+	// Command buffer 
+	virtual void Execute( void ) override;
+	virtual void ExecuteArguments( CUtlVector<CUtlString> &args ) override;
+	virtual CUtlVector<CUtlVector<CUtlString>> ParseCommandLine( CUtlString psz ) override;
+
+	virtual void AddCommand( const char *psz ) override;
+	virtual void InsertCommand( const char *psz ) override;
+};
+
+IConsole *Console()
+{
+	static CConsole s_console;
+	return &s_console;
+}
+
+void CConsole::Init()
+{
+}
+
+void CConsole::Shutdown()
+{
+
+}
+
+
+void CConsole::RegisterVar( ConVar *cvar )
+{
+	m_convars.AppendTail(cvar);
+}
+void CConsole::UnRegisterVar( ConVar *cvar )
+{
+
+}
+ConVar *CConsole::FindVar( const char *pName )
+{
+	for (auto &var: m_convars)
+	{
+		if (!V_strcmp(var->GetName(), pName))
+			return var;
+	}
+	return NULL;
+}
+
+void CConsole::RegisterCommand( ConCommand *cvar )
+{
+	m_commands.AppendTail(cvar);
+}
+void CConsole::UnRegisterCommand( ConCommand *cvar )
+{
+
+}
+ConCommand *CConsole::FindCommand( const char *pName )
+{
+	for (auto &var: m_commands)
+	{
+		if (!V_strcmp(var->GetName(), pName))
+			return var;
+	}
+	return NULL;
+}
+CUtlString g_commandBuffer;
+
+//-----------------------------------------------------------------------------
+// Executes arguments from CConsole::Execute 
+//-----------------------------------------------------------------------------
+void CConsole::ExecuteArguments( CUtlVector<CUtlString> &args )
+{
+	if (args.GetSize()<1)
+		return;
+
+	ConCommand *cmd = CConsole::FindCommand(args[0]);
+	if (!cmd)
+	{
+		V_printf("%s not found\n", args[0].GetString());
+		return;
+	}
+	CUtlBuffer<char*> strbuffer(args.GetSize());
+	for ( size_t i = 0; i < args.GetSize(); i++)
+	{
+		strbuffer[i] = args[i].GetString();
+	};
+	(cmd->GetCallback())(args.GetSize(), strbuffer);
+}
+
+void CConsole::Execute( void )
+{
+	CUtlVector<CUtlVector<CUtlString>> commands = ParseCommandLine(g_commandBuffer);
+	g_commandBuffer = 0;
+	for (auto &command: commands)
+	{
+		ExecuteArguments(command);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Parses command buffer. 
+//-----------------------------------------------------------------------------
+CUtlVector<CUtlVector<CUtlString>> CConsole::ParseCommandLine( CUtlString psz )
+{	
+	CUtlVector<CUtlString> arguments;
+	CUtlVector<CUtlVector<CUtlString>> commands;
+	CUtlString szArgument;
+	bool bIsQuote = false;
+	for ( auto &c: (CUtlVector<char>&)psz )
+	{
+		if ( c == '\"' )
+		{
+			bIsQuote = !bIsQuote;
+			continue;
+		}
+
+		if ( c == ';' || c == '\n' )
+		{
+			if (bIsQuote)
+			{
+				continue;
+			}
+			if (szArgument != 0)
+				arguments.AppendTail(szArgument);
+			if ( arguments.GetSize() > 0 )
+				commands.AppendTail(arguments);
+			szArgument = 0;
+			arguments = {};
+			continue;
+		}
+		if ( c == '\t' || c == ' ' )
+		{
+			if (bIsQuote)
+			{
+				szArgument.AppendTail(c);
+				continue;
+			}
+
+			if (szArgument != 0)
+				arguments.AppendTail(szArgument);
+			szArgument = 0;
+			continue;
+		}
+		szArgument.AppendTail(c);
+	};
+	if (szArgument != 0)
+		arguments.AppendTail(szArgument);
+	if ( arguments.GetSize() > 0 )
+		commands.AppendTail(arguments);
+	return commands;
+}
+
+void CConsole::AddCommand( const char *psz )
+{
+	g_commandBuffer.AppendTail(psz);
+}
+
+void CConsole::InsertCommand( const char *psz )
+{
+	g_commandBuffer.AppendHead(psz);
+};
+
+ConVar::ConVar( const char *pName, const char *pDefaultValue, int flags ) 
+	: ConVar(pName, pDefaultValue, flags, 0)
+{
+		
+}
+ConVar::ConVar( const char *pName, const char *pDefaultValue, int flags,
+	const char *pHelpString ) 
+	: ConVar(pName, pDefaultValue, flags, pHelpString, 0)
+{
+}
+ConVar::ConVar( const char *pName, const char *pDefaultValue, int flags,
+	const char *pHelpString, ConCommandFn callback )
+{
+	m_szName = pName;
+	m_flags = flags;
+	m_szValue = pDefaultValue;
+	m_fValue = V_atof(pDefaultValue);
+	m_nValue = V_atoi(pDefaultValue);
+	Console()->RegisterVar(this);
+}
+
+bool ConVar::IsFlagSet( int flag )
+{
+
+}
+const char *ConVar::GetHelpText( void )
+{
+	return m_szHelpString;
+}
+bool ConVar::IsRegistered( void )
+{
+
+}
+const char *ConVar::GetName( void )
+{
+	return m_szName;
+}
+void ConVar::AddFlags( int flags )
+{
+
+}
+bool ConVar::IsCommand( void )
+{
+
+}
+
+void ConVar::InstallChangeCallback( ConCommandFn )
+{
+
+}
+
+float ConVar::GetFloat( void )
+{
+	return m_fValue; 
+}
+int ConVar::GetInt( void )
+{
+	return m_nValue; 
+}
+bool ConVar::GetBool( void )
+{
+	return m_nValue;
+}
+const char *ConVar::GetString( void ) 
+{
+
+}
+
+void ConVar::SetValue( const char *szValue )
+{
+	if (!szValue)
+		return;
+	m_szValue = szValue;
+	m_fValue = V_atof(szValue);
+	m_nValue = V_atoi(szValue);
+}
+void ConVar::SetValue( float fValue )
+{
+	m_fValue = fValue;
+	m_nValue = fValue;
+	m_szValue = CUtlString("%f\n",fValue);
+}
+void ConVar::SetValue( int iValue )
+{
+	m_fValue = iValue;
+	m_nValue = iValue;
+	m_szValue = CUtlString("%i\n",iValue);
+}
+
+ConCommand::ConCommand(const char *pName, ConCommandFn callback, 
+	const char *pHelpString, int flags)
+{
+	m_szName = pName;
+	m_callback = callback;
+	m_flags = flags;
+	Console()->RegisterCommand(this);
+};
+const char *ConCommand::GetHelpText( void )
+{
+	return m_szHelpString;
+}
+const char *ConCommand::GetName( void )
+{
+	return m_szName;
+}
+ConCommandFn ConCommand::GetCallback( void )
+{
+	return m_callback;
+}
+
+
+
+void IConsole_Exec( int argc, char **argv)
+{
+	if (argc != 2)
+		return;
+
+	IFileHandle *f = filesystem->Open(argv[1], FILEMODE_READ);
+	if (!f)
+		return;
+	CUtlBuffer<char> b(f->Size()+1);
+	f->Read(b, b.GetSize());
+	b[b.GetSize()-1] = 0;
+	Console()->AddCommand(b);
+	Console()->AddCommand(";");
+	Console()->Execute();
+}
+
+ConCommand IConsole_ExecCmd("exec", IConsole_Exec);

engine/engine.cpp

@@ -1,6 +1,7 @@
 
-#include "ifilesystem.h"
+#include "tier2/ifilesystem.h"
 #include "igamewindow.h"
+#include "materialsystem/materialsystem.h"
 #include "tier1/interface.h"
 #include "tier1/commandline.h"
 #include "tier0/mem.h"
@@ -16,6 +17,8 @@ extern "C" void FunnyMain( int argc, char **argv )
 
 	ServerGameDLL()->Init();
 
+	Materials()->Init();
+
 
 	for (;;) {
 		gamewindow->UpdateWindow();

engine/filesystem_pak.cpp

@@ -1,4 +1,4 @@
-#include "ifilesystem.h"
+#include "tier2/ifilesystem.h"
 #include "tier1/interface.h"
 #include "tier0/lib.h"
 
@@ -47,14 +47,14 @@ public:
 	{
 		int eLibcSeekMode = 0;
 		switch (eSeekMode) {
-		case SEEKMODE_SET:
+		case SEEKMODE_RELATIVE_CURRENT:
-			eLibcSeekMode = SEEK_SET;
+			eLibcSeekMode = SEEK_CUR;
 			break;
 		case SEEKMODE_RELATIVE_END:
 			eLibcSeekMode = SEEK_END;
 			break;
 		case SEEKMODE_RELATIVE_START:
-			eLibcSeekMode = SEEK_CUR;
+			eLibcSeekMode = SEEK_SET;
 			break;
 		}
 		CPAKFileHandle *pHandle = (CPAKFileHandle*)pFile;
@@ -68,6 +68,12 @@ public:
 		if (!pHandle)
 			return 0;
 	}
+	virtual size_t Size( IFileHandle *pFile ) override
+	{
+		CPAKFileHandle *pHandle = (CPAKFileHandle*)pFile;
+		if (!pHandle)
+			return 0;
+	}
 
 	virtual void Close( IFileHandle *pFile ) override
 	{

engine/gamewindow_sdl.cpp

@@ -11,7 +11,6 @@
 #include "SDL3/SDL_vulkan.h"
 #include "SDL3/SDL_events.h"
 
-SDL_Window *g_pWindow;
 
 class CSDLGameWindow: public IGameWindow
 {
@@ -19,6 +18,20 @@ public:
 	virtual void Init() override;
 	virtual void Shutdown() override;
 	virtual void UpdateWindow() override;
+
+	virtual EGraphicsAPI GetGraphicsAPI() override; 
+
+	virtual int GetVulkanInstanceExtensionCount() override;
+	virtual const char **GetVulkanInstanceExtensions() override;
+	virtual void CreateVulkanSurface( void *pInstance ) override;
+	virtual void DestroyVulkanSurface( void *pInstance ) override;
+	virtual void *GetVulkanSurface() override;
+
+private:
+	SDL_Window *m_pWindow;
+	EGraphicsAPI m_ePreferredGraphicsAPI;
+
+	void *m_pVulkanSurface;
 };
 
 CSDLGameWindow g_sdlGameWindow;
@@ -27,12 +40,14 @@ IGameWindow *gamewindow = &g_sdlGameWindow;
 
 void CSDLGameWindow::Init()
 {
+	m_ePreferredGraphicsAPI = GRAPHICS_API_VULKAN;
+
 	if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_EVENTS | SDL_INIT_GAMEPAD))
 		Plat_FatalErrorFunc("SDL_Init: %s\n", SDL_GetError());
 
-	g_pWindow = SDL_CreateWindow("funnygame", 1280, 720, SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE);
+	m_pWindow = SDL_CreateWindow("funnygame", 1280, 720, SDL_WINDOW_VULKAN | SDL_WINDOW_RESIZABLE);
-	if (!g_pWindow)
+	if (!m_pWindow)
-		Plat_FatalErrorFunc("SDL_Init: %s\n", SDL_GetError());
+		Plat_FatalErrorFunc("SDL_CreateWindow: %s\n", SDL_GetError());
 }
 
 void CSDLGameWindow::Shutdown()
@@ -47,6 +62,8 @@ void CSDLGameWindow::UpdateWindow()
 	{
 		switch (event.type)
 		{
+		case SDL_EVENT_WINDOW_PIXEL_SIZE_CHANGED:
+			break;
 		case SDL_EVENT_QUIT:
 			SDL_Quit();
 			Plat_Exit(0);
@@ -56,3 +73,50 @@ void CSDLGameWindow::UpdateWindow()
 		}
 	}
 }
+EGraphicsAPI CSDLGameWindow::GetGraphicsAPI()
+{
+	return GRAPHICS_API_VULKAN;
+}
+
+int CSDLGameWindow::GetVulkanInstanceExtensionCount()
+{
+	if ( m_ePreferredGraphicsAPI != GRAPHICS_API_VULKAN )
+		return -1;
+
+	uint32_t nCount;
+	SDL_Vulkan_GetInstanceExtensions(&nCount);
+
+	return nCount;
+}
+
+const char **CSDLGameWindow::GetVulkanInstanceExtensions()
+{
+	if ( m_ePreferredGraphicsAPI != GRAPHICS_API_VULKAN )
+		return 0;
+
+	uint32_t nCount;
+	return (const char **)SDL_Vulkan_GetInstanceExtensions(&nCount);
+}
+
+void CSDLGameWindow::CreateVulkanSurface( void *pInstance )
+{
+	if ( m_ePreferredGraphicsAPI != GRAPHICS_API_VULKAN )
+		return;
+
+	SDL_Vulkan_CreateSurface(m_pWindow, (VkInstance)pInstance, NULL, (VkSurfaceKHR*)&m_pVulkanSurface);
+}
+
+void CSDLGameWindow::DestroyVulkanSurface( void *pInstance )
+{
+	SDL_Vulkan_DestroySurface((VkInstance)pInstance, (VkSurfaceKHR)m_pVulkanSurface, NULL);
+}
+
+void *CSDLGameWindow::GetVulkanSurface()
+{
+	if ( m_ePreferredGraphicsAPI != GRAPHICS_API_VULKAN )
+		return 0;
+
+
+	return m_pVulkanSurface;
+}
+

fpc/library/clang/c.cpp

@@ -34,7 +34,6 @@ LinkProject_t CClangCompiler::Compile( CProject_t *pProject )
 {
 	if (!clangbackend && CommandLine()->CheckParam("-experimental_header_include"))
 		clangbackend = (IClangBackend*)CreateInterface(CLANG_BACKEND_INTERFACE_NAME, NULL);
-	V_printf("CLANG: %p\n", clangbackend);
 
 	if (pProject->m_szName == 0)
 	{
@@ -121,11 +120,12 @@ LinkProject_t CClangCompiler::Compile( CProject_t *pProject )
 		}
 
 		if (clangbackend)
-			bAreDependenciesUpdated = clangbackend->AreFileDependenciesUpdated(file, szOutputFile, args);
+			bAreDependenciesUpdated = clangbackend->AreFileDependenciesUpdated(file, 0, szOutputFile, args);
 		if (!filesystem2->ShouldRecompile(file, szOutputFile) && !bAreDependenciesUpdated)
 			goto skipcompile;
 
 		args.AppendTail("-c");
+		args.AppendTail("-g");
 		args.AppendTail("-o");
 		args.AppendTail(szOutputFile);
 		args.AppendTail(file);
@@ -150,7 +150,7 @@ skipcompile:
 		if (pProject->m_target.kernel == TARGET_KERNEL_ANDROID)
 		{
 			if (!pProject->m_target.szSysroot)
-				Plat_FatalErrorFunc("-sysroot must be specified for android\n");
+				Plat_FatalErrorFunc("sysroot must be specified for android\n");
 			cfile.m_szArguments.AppendHead(CUtlString("%s/bin/clang",pProject->m_target.szSysroot));
 		}
 		else 

fpc/library/clang/c_libclang.cpp

@@ -10,10 +10,11 @@
 class CClangBackend: public IClangBackend
 {
 public:
-	virtual bool AreFileDependenciesUpdated( CUtlString szFile, CUtlString szOutputFile, CUtlVector<CUtlString> arguments ) override;
+	virtual bool AreFileDependenciesUpdated( CUtlString szFile, CUtlString szOutputFile, CUtlString szHashFile, CUtlVector<CUtlString> arguments ) override;
 
 	bool bAnyOutdated;
 	CUtlString szCurrentFile;
+	CUtlString szHashFile;
 
 private:
 	static void InclusionVisitor( CXFile included_file, CXSourceLocation *include_stack, unsigned include_len, CXClientData client_data );
@@ -21,7 +22,7 @@ private:
 
 EXPOSE_INTERFACE(CClangBackend, IClangBackend, CLANG_BACKEND_INTERFACE_NAME);
 
-bool CClangBackend::AreFileDependenciesUpdated( CUtlString szFile, CUtlString szOutputFile, CUtlVector<CUtlString> arguments )
+bool CClangBackend::AreFileDependenciesUpdated( CUtlString szFile, CUtlString szOutputFile, CUtlString szHashFile, CUtlVector<CUtlString> arguments )
 {
 	szCurrentFile = szOutputFile;
 	bAnyOutdated = false;

fpc/library/clang/c_libclang.h

@@ -9,7 +9,7 @@
 abstract_class IClangBackend
 {
 public:
-	virtual bool AreFileDependenciesUpdated( CUtlString szFile, CUtlString szOutputFile, CUtlVector<CUtlString> arguments ) = 0;	
+	virtual bool AreFileDependenciesUpdated( CUtlString szFile, CUtlString szOutputFile, CUtlString szHashFile, CUtlVector<CUtlString> arguments ) = 0;	
 };
 
 extern IClangBackend *clangbackend;

fpc/library/clang/ld.cpp

@@ -53,7 +53,7 @@ CUtlString CClangLinker::Link( LinkProject_t *pProject )
 	filesystem2->MakeDirectory(szOutputDir);
 	if (pProject->linkType == ELINK_STATIC_LIBRARY)
 	{
-		V_printf("  AR     %s\n", pProject->m_szName.GetString());
+		V_printf("  AR       %s\n", pProject->m_szName.GetString());
 		bool shouldRecompile = false;
 		CUtlVector<CUtlString> args;
 		for (auto object: pProject->objects)

materialsystem/__build.cpp

@@ -5,10 +5,10 @@
 #include "tier1/commandline.h"
 
 CUtlVector<CUtlString> MaterialSystem_CompiledFiles = {
+	"materialsystem/materialsystem.cpp",
+	"materialsystem/vulkan/rendercontext.cpp",
 	"materialsystem/vulkan/material.cpp",
-	"materialsystem/vulkan/materialsystem.cpp",
+	"external/volk/volk.c",
-	"materialsystem/vulkan/shader.cpp",
-	"materialsystem/vulkan/vulkan_state.cpp",
 };
 CUtlString material_lib;
 
@@ -23,6 +23,7 @@ DECLARE_BUILD_STAGE(MaterialSystem)
 	compileProject.bFPIC = true;
 	ldProject = ccompiler->Compile(&compileProject);
 	ldProject.linkType = ELINK_STATIC_LIBRARY;
+	ldProject.libraries = { "vulkan" };
 
 	CUtlString outputProject = linker->Link(&ldProject);
 	material_lib = outputProject;

materialsystem/materialsystem.cpp

@@ -0,0 +1,41 @@
+#include "materialsystem/materialsystem.h"
+
+class CMaterialSystem: public IMaterialSystem
+{
+public:
+	virtual void Init() override;
+	virtual void Frame( float fTime ) override;
+	virtual void Shutdown() override;
+
+	virtual IRenderContext *GetRenderContext( void ) override;
+};
+	
+void CMaterialSystem::Init()
+{
+	GetRenderContext()->Init();
+}
+
+void CMaterialSystem::Frame( float fTime )
+{
+	GetRenderContext()->Frame(fTime);
+}
+
+void CMaterialSystem::Shutdown()
+{
+	GetRenderContext()->Shutdown();
+}
+
+extern IRenderContext *g_pVkRenderContext;
+
+
+IRenderContext *CMaterialSystem::GetRenderContext( void )
+{
+	return g_pVkRenderContext;
+}
+
+
+IMaterialSystem *Materials( void )
+{
+	static CMaterialSystem s_materialSystem;
+	return &s_materialSystem;
+}

materialsystem/vulkan/device_extensions.h

@@ -0,0 +1,2 @@
+REQUIRED_EXTENSION(VK_KHR_SWAPCHAIN)
+OPTIONAL_EXTENSION(VK_KHR_RAY_TRACING_PIPELINE)

materialsystem/vulkan/materialsystem.cpp

@@ -1,40 +0,0 @@
-#include "materialsystem/imaterialsystem.h"
-
-class CVkRenderingContext
-{
-
-};
-
-CVkRenderingContext g_vkRenderingContext;
-
-class CVkMaterialSystem: public IMaterialSystem
-{
-public:
-	virtual void Init();
-	virtual void Frame( float fDeltaTime );
-	virtual void Shutdown();
-
-	IRenderContext *GetRenderContext();
-};
-
-CVkMaterialSystem g_vkMaterialSystem;
-IMaterialSystem *materials = &g_vkMaterialSystem;
-
-
-void CVkMaterialSystem::Init()
-{
-
-}
-
-void CVkMaterialSystem::Frame( float fDeltaTime )
-{
-
-}
-
-void CVkMaterialSystem::Shutdown()
-{
-
-}
-
-
-

materialsystem/vulkan/rendercontext.cpp

@@ -0,0 +1,274 @@
+#include "SDL3/SDL_vulkan.h"
+#include "materialsystem/materialsystem.h"
+#include "tier0/platform.h"
+#include "tier1/utlvector.h"
+#define VK_NO_PROTOTYPES
+#include "vulkan/vulkan_core.h"
+#include "vulkan_state.h"
+#include "igamewindow.h"
+
+
+#define REQUIRED_EXTENSION(ext) ext##_EXTENSION_NAME,
+#define OPTIONAL_EXTENSION(ext) ext##_EXTENSION_NAME,
+const char *g_vkDeviceExtensions[] = {
+#include "device_extensions.h"
+};
+#undef REQUIRED_EXTENSION
+#undef OPTIONAL_EXTENSION
+
+
+
+class CVkRenderContext: public IRenderContext
+{
+public:
+	virtual void Init() override;
+	virtual void Frame( float fDeltaTime ) override;
+	virtual void Shutdown() override;
+
+	virtual IVertexBuffer *CreateVertexBuffer( uint32_t nSize ) override;
+	virtual IIndexBuffer *CreateIndexBuffer( uint32_t nSize ) override;
+	virtual IImage *CreateRenderTarget( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType ) override;
+	virtual IImage *CreateStorageImage( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType ) override;
+
+	virtual void DestroyBuffer( IBuffer *pBuffer ) override;
+	virtual void DestroyImage( IImage *pImage ) override;
+private:
+	IBuffer *CreateBuffer( uint32_t nSize, VkBufferUsageFlags2 eUsage );
+	IBuffer *CreateBufferAligned( uint32_t nSize, uint32_t nAlignment, VkBufferUsageFlags2 eUsage );
+	
+	VkPhysicalDevice SelectPhysicalDevice( CUtlVector<VkPhysicalDevice> physicalDevices );
+
+	void CreateSwapchain();
+	void DestroySwapchain();
+};
+
+//-----------------------------------------------------------------------------
+// Creates vertex buffer. Wrapper over CreateBuffer 
+//-----------------------------------------------------------------------------
+IVertexBuffer *CVkRenderContext::CreateVertexBuffer( uint32_t nSize )
+{
+	return (IVertexBuffer*)CreateBuffer(nSize, VK_BUFFER_USAGE_2_VERTEX_BUFFER_BIT);
+}
+
+//-----------------------------------------------------------------------------
+// Creates index buffer. Wrapper over CreateBuffer 
+//-----------------------------------------------------------------------------
+IIndexBuffer *CVkRenderContext::CreateIndexBuffer( uint32_t nSize )
+{
+	return (IIndexBuffer*)CreateBuffer(nSize, VK_BUFFER_USAGE_2_INDEX_BUFFER_BIT);
+}
+
+//-----------------------------------------------------------------------------
+// Creates basic vulkan buffer
+//-----------------------------------------------------------------------------
+IBuffer *CreateBuffer( uint32_t nSize, VkBufferUsageFlags2 eUsage )
+{
+}
+
+//-----------------------------------------------------------------------------
+// Creates vulkan buffer aligned to the nAlignment
+// Useful for everything eg: ray tracing, which requires them to be aligned 
+// to the groupBaseAlignment.
+//-----------------------------------------------------------------------------
+IBuffer *CreateBufferAligned( uint32_t nSize, uint32_t nAlignment, VkBufferUsageFlags2 eUsage )
+{
+
+}
+
+
+IImage *CVkRenderContext::CreateRenderTarget( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType )
+{
+
+}
+
+IImage *CVkRenderContext::CreateStorageImage( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType )
+{
+
+}
+
+
+void CVkRenderContext::DestroyBuffer( IBuffer *pBuffer )
+{
+
+}
+
+void CVkRenderContext::DestroyImage( IImage *pImage )
+{
+
+}
+
+CVkRenderContext s_vkRenderContext;
+IRenderContext *g_pVkRenderContext = &s_vkRenderContext;
+
+
+uint32_t g_iDrawFamily;
+uint32_t g_iPresentFamily;
+
+VkInstance g_vkInstance;
+VkPhysicalDevice g_vkPhysicalDevice;
+VkDevice g_vkDevice;
+VkSwapchainKHR g_vkSwapchain;
+
+
+void CVkRenderContext::Init()
+{
+	VkResult r;
+
+	int nExtensionCount;
+	CUtlVector<const char *> extensions = {};
+
+	uint32_t nPhysicalDevicesCount;
+	CUtlVector<VkPhysicalDevice> physicalDevices;
+	
+	uint32_t nNumQueueFamilies = 0;
+	CUtlVector<VkQueueFamilyProperties> queueFamilyProperties;
+	
+	VkApplicationInfo stApplicationInfo = {};
+	VkInstanceCreateInfo stInstanceCreateInfo = {};
+
+	VkDeviceQueueCreateInfo stDeviceQueueCreateInfo = {};
+	VkDeviceCreateInfo stDeviceCreateInfo = {};
+	
+	float fPriority = 1.0;
+
+	r = volkInitialize();
+	VULKAN_RESULT_PRINT(r, volkInitialize)
+
+	// Get extensions required by game window
+	nExtensionCount = gamewindow->GetVulkanInstanceExtensionCount();
+	extensions.Resize(nExtensionCount);
+	V_memcpy(extensions.GetData(), gamewindow->GetVulkanInstanceExtensions(), extensions.GetSize()*sizeof(const char*));
+
+	// Create instance
+	stApplicationInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
+	stApplicationInfo.apiVersion = VK_API_VERSION_1_4;
+	stApplicationInfo.pApplicationName = "funny";
+	stApplicationInfo.pEngineName = "funny";
+
+	stInstanceCreateInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
+	stInstanceCreateInfo.pApplicationInfo = &stApplicationInfo;
+	stInstanceCreateInfo.enabledExtensionCount = extensions.GetSize();
+	stInstanceCreateInfo.ppEnabledExtensionNames = extensions.GetData();
+
+	r = vkCreateInstance(&stInstanceCreateInfo, NULL, &g_vkInstance);
+	VULKAN_RESULT_PRINT(r, vkCreateInstance)
+	
+	// volk requires to load instance this way
+	volkLoadInstance(g_vkInstance);
+
+
+	// Get amount of physical devices
+	r = vkEnumeratePhysicalDevices(g_vkInstance, &nPhysicalDevicesCount, NULL);
+	VULKAN_RESULT_PRINT(r, vkEnumeratePhysicalDevices)
+	physicalDevices.Resize(nPhysicalDevicesCount);
+
+	// Read all physical devices
+	r = vkEnumeratePhysicalDevices(g_vkInstance, &nPhysicalDevicesCount, physicalDevices.GetData());
+	VULKAN_RESULT_PRINT(r, vkEnumeratePhysicalDevices)
+
+	g_vkPhysicalDevice = SelectPhysicalDevice(physicalDevices);
+
+
+	// Get all queues
+	vkGetPhysicalDeviceQueueFamilyProperties(g_vkPhysicalDevice, &nNumQueueFamilies, NULL);
+	queueFamilyProperties.Resize(nNumQueueFamilies);
+
+	uint32_t i = 0;
+	vkGetPhysicalDeviceQueueFamilyProperties(g_vkPhysicalDevice, &nNumQueueFamilies, queueFamilyProperties.GetData());
+
+	for (auto &family: queueFamilyProperties)
+	{
+		if (family.queueFlags & VK_QUEUE_GRAPHICS_BIT)
+		{
+			g_iDrawFamily = i;
+			g_iPresentFamily = i;
+		}
+		i++;
+	}
+
+
+	// Create device
+	stDeviceQueueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
+	stDeviceQueueCreateInfo.queueCount = 1;
+	stDeviceQueueCreateInfo.pQueuePriorities = &fPriority;
+	stDeviceQueueCreateInfo.queueFamilyIndex = g_iDrawFamily;
+
+	stDeviceCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
+	stDeviceCreateInfo.queueCreateInfoCount = 1;
+	stDeviceCreateInfo.pQueueCreateInfos = &stDeviceQueueCreateInfo;
+	vkCreateDevice(g_vkPhysicalDevice, &stDeviceCreateInfo, NULL, &g_vkDevice);
+
+	CreateSwapchain();
+}
+
+void CVkRenderContext::Frame( float fDeltaTime )
+{
+
+}
+
+void CVkRenderContext::CreateSwapchain()
+{
+	gamewindow->CreateVulkanSurface(g_vkInstance);
+
+}
+
+void CVkRenderContext::DestroySwapchain()
+{
+	vkDestroySwapchainKHR(g_vkDevice, g_vkSwapchain, NULL);
+	gamewindow->DestroyVulkanSurface(g_vkInstance);
+}
+
+//-----------------------------------------------------------------------------
+// TODO: Move to the rendering context
+//-----------------------------------------------------------------------------
+void CVkRenderContext::Shutdown()
+{
+	vkDestroyInstance(g_vkInstance, NULL);
+}
+
+
+//-----------------------------------------------------------------------------
+// Selects best device to be used in rendering.
+// We want to get the best perfomance out of the GPU, so we need to select the
+// best driver.
+//-----------------------------------------------------------------------------
+VkPhysicalDevice CVkRenderContext::SelectPhysicalDevice( CUtlVector<VkPhysicalDevice> physicalDevices )
+{
+	uint32_t uMaxScore = 0;
+	VkPhysicalDevice selectedDevice = 0;
+	VkResult r;
+
+	for (auto &device: physicalDevices)
+	{
+		uint32_t nExtensionCount;
+		CUtlVector<VkExtensionProperties> extensions;
+		VkPhysicalDeviceFeatures stPhysicalDeviceFeatures;
+		VkPhysicalDeviceProperties stPhysicalDeviceProperties;
+		uint32_t uScore = 0;
+
+		r = vkEnumerateDeviceExtensionProperties(device, NULL, &nExtensionCount, NULL);
+		VULKAN_RESULT_PRINT(r, vkEnumeratePhysicalDevices)
+		extensions.Resize(nExtensionCount);
+		
+		r = vkEnumerateDeviceExtensionProperties(device, NULL, &nExtensionCount, extensions.GetData());
+		VULKAN_RESULT_PRINT(r, vkEnumeratePhysicalDevices)
+
+		vkGetPhysicalDeviceProperties(device, &stPhysicalDeviceProperties);
+		vkGetPhysicalDeviceFeatures(device, &stPhysicalDeviceFeatures);
+
+		if (stPhysicalDeviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
+			uScore += 1000;
+		if (stPhysicalDeviceProperties.deviceType == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU)
+			uScore += 500;
+
+		if (uScore >= uMaxScore)
+		{
+			selectedDevice = device;
+			uMaxScore = uScore;
+		}
+	}
+
+	return selectedDevice;
+}
+
+

materialsystem/vulkan/vulkan_state.h

@@ -0,0 +1,57 @@
+#ifndef VULKAN_STATE_H
+#define VULKAN_STATE_H
+
+
+#include "volk.h"
+#include "vk_mem_alloc.h"
+#include "tier0/platform.h"
+#include "iappsystem.h"
+#include "materialsystem/materialsystem.h"
+
+#define REQUIRED_EXTENSION(ext) bool bIsSupported_##ext;
+#define OPTIONAL_EXTENSION(ext) bool bIsSupported_##ext;
+struct SupportedVulkanExtensions_t
+{
+#include "device_extensions.h"
+};
+#undef REQUIRED_EXTENSION
+#undef OPTIONAL_EXTENSION
+
+enum EDependencyMode
+{
+	DEPENDENCY_MODE_SHADER_IMAGE,
+	DEPENDENCY_MODE_SHADER_BUFFER,
+	DEPENDENCY_MODE_SHADER_ACCELERATION_STRUCTURE,
+
+	
+	DEPENDENCY_MODE_DRAWCALL_VERTEX_BUFFER,
+	DEPENDENCY_MODE_DRAWCALL_INDEX_BUFFER,
+	DEPENDENCY_MODE_DRAWCALL_OUTPUT_IMAGE,
+};
+
+abstract_class IVkCommand
+{
+public:
+	virtual void Call() = 0;
+	void AddDependency( IRenderingObject *pObject, EDependencyMode eDependencyMode );
+};
+
+abstract_class IVkCommandBuffer: public IAppSystem
+{
+public:
+	void PushCommand( IVkCommand *pCommand );
+
+	void Submit();
+};
+
+extern IVkCommandBuffer *vkcommandbuffer;
+
+#undef __cplusplus
+#include "vulkan/vk_enum_string_helper.h"
+#define __cplusplus
+
+#define VULKAN_RESULT_PRINT(r, func) \
+if (r != VK_SUCCESS) \
+	Plat_FatalErrorFunc(#func " failed: %s\n", string_VkResult(r));
+
+#endif

public/funnyformat.h

@@ -2,7 +2,7 @@
 #define FUNNY_FORMAT_H
 
 #include "tier0/platform.h"
-#include "ifilesystem.h"
+#include "tier2/ifilesystem.h"
 #include "tier1/utlvector.h"
 
 struct FunnyFormatParameter_t

public/icvar.h

@@ -0,0 +1,119 @@
+#ifndef CONSOLE_H
+#define CONSOLE_H
+
+#include "iappsystem.h"
+#include "tier0/platform.h"
+#include "tier1/utlstring.h"
+#include "tier1/utlvector.h"
+
+class ConVar;
+class ConCommand;
+
+
+typedef void(*ConCommandFn)(int argc, char **argv);
+
+abstract_class IConsole: public IAppSystem
+{
+public:
+	// Variables
+	virtual void RegisterVar( ConVar *cvar ) = 0;
+	virtual void UnRegisterVar( ConVar *cvar ) = 0;
+	virtual ConVar *FindVar( const char *pName ) = 0;
+
+	// Commands
+	virtual void RegisterCommand( ConCommand *cvar ) = 0;
+	virtual void UnRegisterCommand( ConCommand *cvar ) = 0;
+	virtual ConCommand *FindCommand( const char *pName ) = 0;
+
+	// Command buffer 
+	virtual void Execute( void ) = 0;
+	virtual void ExecuteArguments( CUtlVector<CUtlString> &args ) = 0;
+	virtual CUtlVector<CUtlVector<CUtlString>> ParseCommandLine( CUtlString psz ) = 0;
+
+	virtual void AddCommand( const char *psz ) = 0;
+	virtual void InsertCommand( const char *psz ) = 0;
+	
+	CUtlVector<ConVar*> m_convars;
+	CUtlVector<ConCommand*> m_commands;
+};
+
+IConsole *Console();
+
+
+#define FCVAR_NONE 0
+#define FCVAR_DEVELOPMENTONLY 0x1
+#define FCVAR_GAMEDLL 0x2
+#define FCVAR_CLIENTDLL 0x4
+#define FCVAR_HIDDEN 0x8
+
+#define FCVAR_PROTECTED 0x10
+#define FCVAR_SPONLY 0x20
+#define FCVAR_ARCHIVE 0x40
+#define FCVAR_NOTIFY 0x80
+#define FCVAR_CHEAT 0x100
+#define FCVAR_REPLICATED 0x200
+
+class ConVar
+{
+public:
+	ConVar( const char *pName, const char *pDefaultValue, int flags );
+	ConVar( const char *pName, const char *pDefaultValue, int flags,
+		const char *pHelpString );
+	ConVar( const char *pName, const char *pDefaultValue, int flags,
+		const char *pHelpString, ConCommandFn callback );
+	
+	bool IsFlagSet( int flag );
+	const char *GetHelpText( void );
+	bool IsRegistered( void );
+	const char *GetName( void );
+	void AddFlags( int flags );
+	bool IsCommand( void );
+
+	void InstallChangeCallback( ConCommandFn );
+
+	float GetFloat( void );
+	int GetInt( void );
+	bool GetBool( void );
+	const char *GetString( void );
+
+	void SetValue( const char *szValue );
+	void SetValue( float fValue );
+	void SetValue( int iValue );
+private:
+	CUtlString m_szName;
+	CUtlString m_szHelpString;
+	CUtlString m_szDefaultValue;
+
+	CUtlString m_szValue;
+	float m_fValue;
+	int m_nValue;
+
+	int m_flags;
+};
+
+
+class ConCommand
+{
+public:
+	ConCommand(const char *pName, ConCommandFn callback, 
+		const char *pHelpString=0, int flags=0);
+	
+	const char *GetName( void );
+	const char *GetHelpText( void );
+	ConCommandFn GetCallback( void );
+private:
+	CUtlString m_szName;
+	CUtlString m_szHelpString = NULL;
+	ConCommandFn m_callback;
+
+	int m_flags;
+};
+
+#undef V_printf
+#define V_printf(...) Msg(CUtlString(__VA_ARGS__).GetString())
+
+void Msg( const char* message );
+void Warning( const char* message );
+void Error( const char* message );
+
+#endif

public/igamewindow.h

@@ -4,10 +4,24 @@
 #include "iappsystem.h"
 #include "tier0/platform.h"
 
+enum EGraphicsAPI
+{
+	GRAPHICS_API_METAL,
+	GRAPHICS_API_VULKAN,
+};
+
 abstract_class IGameWindow: public IAppSystem
 {
 public:
 	virtual void UpdateWindow() = 0;
+
+	virtual EGraphicsAPI GetGraphicsAPI() = 0;
+
+	virtual int GetVulkanInstanceExtensionCount() = 0;
+	virtual const char **GetVulkanInstanceExtensions() = 0;
+	virtual void CreateVulkanSurface( void *pInstance ) = 0;
+	virtual void DestroyVulkanSurface( void *pInstance ) = 0;
+	virtual void *GetVulkanSurface() = 0;
 };
 
 extern IGameWindow *gamewindow;

public/materialsystem/materialsystem.h

@@ -61,31 +61,30 @@ enum EMultisampleType
 abstract_class IImage : public IRenderingObject
 {
 public:
-	virtual void BlitTo( IImage *pImage );
+
 };
 abstract_class IRenderContext: public IAppSystem
 {
 public:
+	virtual void Frame( float fTime ) = 0;
 
 	virtual IVertexBuffer *CreateVertexBuffer( uint32_t nSize ) = 0;
 	virtual IIndexBuffer *CreateIndexBuffer( uint32_t nSize ) = 0;
-	virtual IImage *CreateRenderTarget( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType );
+	virtual IImage *CreateRenderTarget( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType ) = 0;
-	virtual IImage *CreateStorageImage( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType );
+	virtual IImage *CreateStorageImage( uint32_t x, uint32_t y, EImageFormat eFormat, EMultisampleType eMultisampleType ) = 0;
 
-	virtual void DestroyBuffer( IBuffer *pBuffer );
+	virtual void DestroyBuffer( IBuffer *pBuffer ) = 0;
-	virtual void DestroyImage( IImage *pImage );
+	virtual void DestroyImage( IImage *pImage ) = 0;
 };
 
 abstract_class IMaterialSystem: public IAppSystem
 {
 public:
-	virtual void Init();
+	virtual void Frame( float fTime ) = 0;
-	virtual void Frame( float fTime );
-	virtual void Shutdown();
 
-	IRenderContext *GetRenderContext();
+	virtual IRenderContext *GetRenderContext( void) = 0;
 };
 
-extern IMaterialSystem *materials;
+IMaterialSystem *Materials( void );
 
 #endif

public/tier0/lib.h

@@ -13,6 +13,7 @@
 #include "string.h"
 #include "stdio.h"
 #include "stdlib.h"
+#include "ctype.h"
 
 //-----------------------------------------------------------------------------
 // string.h
@@ -106,4 +107,24 @@
 #define V_atoi atoi
 #define V_atof atof
 
+//-----------------------------------------------------------------------------
+// ctype.h
+//-----------------------------------------------------------------------------
+
+#define V_isalnum isalnum
+#define V_isalpha isalpha
+#define V_isblank isblank
+#define V_iscntrl iscntrl
+#define V_isdigit isdigit
+#define V_isgraph isgraph
+#define V_islower islower
+#define V_isprint isprint
+#define V_ispunct ispunct
+#define V_isspace isspace
+#define V_isupper isupper
+#define V_isxdigit isxdigit
+#define V_tolower tolower
+#define V_toupper toupper
+
+
 #endif

public/tier1/utlbuffer.h

@@ -23,10 +23,11 @@ template <typename T>
 class CUtlBuffer
 {
 public:
-	CUtlBuffer( void  );
+	CUtlBuffer( void );
 	CUtlBuffer( size_t nSize );
 	CUtlBuffer( const CUtlBuffer<T>& buffer );
 	CUtlBuffer( const CUtlResizableBuffer<T>& buffer );
+	~CUtlBuffer( void );
 
 	size_t GetSize( void ) const;
 	T* GetMemory(void) const;
@@ -81,6 +82,12 @@ CUtlBuffer<T>::CUtlBuffer( const CUtlResizableBuffer<T>& buffer ) : m_nSize(buff
 	V_memcpy(m_pData,buffer.pData,sizeof(T)*buffer.nSize);
 }
 
+template <typename T>
+CUtlBuffer<T>::~CUtlBuffer()
+{
+	if ( m_pData != 0)
+		V_free(m_pData);
+}
 //-----------------------------------------------------------------------------
 // Gets memory size.
 //-----------------------------------------------------------------------------
@@ -145,9 +152,10 @@ CUtlBuffer<T>& CUtlBuffer<T>::operator=(const CUtlBuffer<T>& other)
 		if ( m_pData != 0)
 			V_free(m_pData);
 		m_pData = (T*)V_malloc(sizeof(T)*other.m_nSize);
+		m_nSize = other.m_nSize;
 		V_memcpy(m_pData, other.m_pData, sizeof(T)*other.m_nSize);
 	}
-	return this;
+	return *this;
 }
 
 //-----------------------------------------------------------------------------

public/tier2/fileformats/ini.h

@@ -3,6 +3,7 @@
 
 #include "tier0/platform.h"
 #include "tier1/utlstring.h"
+#include "tier1/utlvector.h"
 
 abstract_class IINISection
 {
@@ -16,7 +17,7 @@ public:
 abstract_class IINIFile
 {
 public:
-	virtual void GetSection( const char *szSectionName ) = 0;
+	virtual IINISection *GetSection( const char *szSectionName ) = 0;
 };
 
 abstract_class IINIManager

public/tier2/ifilesystem.h

@@ -11,15 +11,9 @@ enum EFileMode
 	FILEMODE_APPEND = 0x04,
 };
 
-enum EFileType {
-	FILETYPE_NONE,
-	FILETYPE_SYSTEM,
-	FILETYPE_PAK,
-};
-
 enum ESeekMode
 {
-	SEEKMODE_SET,
+	SEEKMODE_RELATIVE_CURRENT,
 	SEEKMODE_RELATIVE_START,
 	SEEKMODE_RELATIVE_END,
 };
@@ -35,6 +29,7 @@ public:
 	size_t Read( void *pData, size_t nDataSize );
 	size_t Seek( ESeekMode eSeekMode, size_t nOffset );
 	size_t Tell( void );
+	size_t Size( void );
 	void Close( void );
 
 
@@ -56,12 +51,28 @@ public:
 
 	virtual size_t Seek( IFileHandle *pFile, ESeekMode eSeekMode, size_t nOffset ) = 0;
 	virtual size_t Tell( IFileHandle *pFile ) = 0;
+	virtual size_t Size( IFileHandle *pFile ) = 0;
 
 	virtual void Close( IFileHandle *pFile ) = 0;
+
+	IFileSystem *m_pNext;
+	
+	void RegisterFileSystem();
 };
 
 extern IFileSystem *filesystem;
-extern IFileSystem *filesystem_backend;
+extern IFileSystem *g_pFileSystems;
-extern IFileSystem *filesystem_pak;
+
+typedef IFileSystem *( *InstantiateFileSystemFn )( void );
+class CFileSystemRegistry
+{
+public:
+	CFileSystemRegistry( InstantiateFileSystemFn fn, const char *szFileSystem );
+};
+
+#define EXPOSE_FILESYSTEM( className, filesystemName ) \
+	static IFileSystem *__Create##className##_filesystem() { return ( IFileSystem* )( new className ); }; \
+	static CFileSystemRegistry __Create##className##_registry( __Create##className##_filesystem, filesystemName );
+
 
 #endif

tests/ini/build.cpp

@@ -0,0 +1,35 @@
+#include "c.h"
+#include "target.h"
+#include "helper.h"
+
+DECLARE_BUILD_STAGE(ini_test)
+{
+	CProject_t p = {
+		.files = {
+			"../../tier0/lib.cpp",
+			"../../tier0/mem.cpp",
+			"../../tier0/platform.cpp",
+			"../../tier1/interface.cpp",
+			"../../tier1/utlbuffer.cpp",
+			"../../tier1/utlstring.cpp",
+			"../../tier1/utlvector.cpp",
+			"../../tier1/utlmap.cpp",
+			"../../tier1/commandline.cpp",
+			"../../tier2/fileformats/ini.cpp",
+			"../../tier2/filesystem.cpp",
+			"../../tier2/filesystem_libc.cpp",
+			"main.cpp",
+		},
+		.includeDirectories = 
+		{
+			"../../public"
+		},
+	};
+	p.m_szName = "initest";
+	LinkProject_t l = ccompiler->Compile(&p);
+	CUtlString szPath = linker->Link(&l);
+	filesystem2->CopyFile("./", szPath);
+
+	
+	return 0;
+}

tests/ini/main.cpp

@@ -0,0 +1,49 @@
+#include "tier0/lib.h"
+#include "tier0/mem.h"
+#include "tier1/utlbuffer.h"
+#include "tier1/commandline.h"
+#include "tier2/fileformats/ini.h"
+#include "tier2/ifilesystem.h"
+
+int main( int argc, char **argv )
+{
+
+	const char *szFileName;
+	IFileHandle *pHandle = NULL;
+	size_t nSize = 0;
+	CUtlBuffer<char> szData;
+	
+	CommandLine()->CreateCommandLine(argc, argv);
+	filesystem->Init();
+
+	// Get file
+	szFileName = CommandLine()->ParamValue("-f");
+	if (!szFileName)
+		return 0;
+
+	// Load it
+	pHandle = filesystem->Open(szFileName, FILEMODE_READ);
+	if (!pHandle)
+		return 0;
+
+	// Get size
+	pHandle->Seek(SEEKMODE_RELATIVE_END, 0);
+	nSize = pHandle->Tell();
+	pHandle->Seek(SEEKMODE_RELATIVE_START, 0);
+
+	// Read it
+	szData = CUtlBuffer<char>(nSize+1);
+	pHandle->Read(szData, nSize);
+	pHandle->Close();
+
+	szData[nSize] = 0;
+
+	IINIFile *pIniFile = INIManager()->ReadString(szData);
+	if (!pIniFile)
+		return 0;
+	IINISection *pTestValues = pIniFile->GetSection("Test_Values");
+	if (!pTestValues)
+		return 0;
+	V_printf("%s\n",pTestValues->GetStringValue("abc3d"));
+	
+};

tests/ini/test1.ini

@@ -0,0 +1,12 @@
+
+[Test_Values]
+a = "Hello world!\n"
+b = true
+c = false
+c = 3.1415926
+d = 123456
+e = -2.71828
+f = -890
+g = .34
+abc3d = "Hello world from the funny engine, you can use \" to add quotes"
+

tests/ini/test2.ini

@@ -0,0 +1 @@
+[

tests/ini/test3.ini

@@ -0,0 +1 @@
+[Hello

tests/ini/test4.ini

@@ -0,0 +1 @@
+[Test Hello]

tests/ini/test5.ini

@@ -0,0 +1,2 @@
+["Hello world"]
+Test

tests/ini/test6.ini

@@ -0,0 +1,2 @@
+[Test]
+a b

tests/ini/test7.ini

@@ -0,0 +1,2 @@
+[Test]
+a =

tests/ini/test8.ini

@@ -0,0 +1,5 @@
+[Test]
+a = b
+c = d
+
+d = test

tier2/__build.cpp

@@ -0,0 +1,31 @@
+#include "helper.h"
+#include "c.h"
+#include "ld.h"
+#include "tier1/utlstring.h"
+#include "tier1/commandline.h"
+
+CUtlVector<CUtlString> tier2_CompiledFiles = {
+	"tier2/fileformats/ini.cpp",
+	"tier2/fileformats/json.cpp",
+	"tier2/filesystem.cpp",
+	"tier2/filesystem_libc.cpp",
+};
+CUtlString tier2_lib;
+
+DECLARE_BUILD_STAGE(tier2)
+{
+	CProject_t compileProject = {};
+	LinkProject_t ldProject = {};
+
+	compileProject.m_szName = "tier2";
+	compileProject.files = tier2_CompiledFiles;
+	compileProject.includeDirectories = all_IncludeDirectories;
+	compileProject.bFPIC = true;
+	ldProject = ccompiler->Compile(&compileProject);
+	ldProject.linkType = ELINK_STATIC_LIBRARY;
+
+	CUtlString outputProject = linker->Link(&ldProject);
+	tier2_lib = outputProject;
+
+	return 0;
+};

tier2/fileformats/ini.cpp

@@ -1,7 +1,27 @@
 
 #include "tier2/fileformats/ini.h"
+#include "tier0/platform.h"
 #include "tier1/utlstring.h"
 #include "tier1/utlvector.h"
+#include "tier0/lib.h"
+
+enum ESectionType
+{
+	SECTIONTYPE_String,
+	SECTIONTYPE_Boolean,
+	SECTIONTYPE_Float,
+};
+
+
+struct SectionData_t
+{
+	ESectionType m_eSectionType;
+	CUtlString m_szKey;
+	
+	bool m_bData;
+	float m_fData;
+	CUtlString m_szData;
+};
 
 abstract_class CINISection: public IINISection
 {
@@ -11,27 +31,247 @@ public:
 	virtual const char *GetStringValue( const char *szKeyName ) override;
 	virtual CUtlString GetUTLStringValue( const char *szKeyName ) override;
 
-	CUtlVector<CUtlString> m_values;
+	CUtlVector<SectionData_t> m_values;
+	CUtlString m_szSectionName;
 };
 
+bool CINISection::GetBoolValue( const char *szKeyName )
+{
+
+}
+
+int CINISection::GetIntValue( const char *szKeyName )
+{
+
+}
+
+const char *CINISection::GetStringValue( const char *szKeyName )
+{
+	return 0;
+}
+
+CUtlString CINISection::GetUTLStringValue( const char *szKeyName )
+{
+
+}
+
 class CINIFile: public IINIFile
 {
-	virtual void GetSection( const char *szSectionName ) override;
+public:
+	virtual IINISection *GetSection( const char *szSectionName ) override;
 
 	CUtlVector<CINISection*> m_sections;
 };
 
+IINISection *CINIFile::GetSection( const char *szSectionName )
+{
+	for ( auto &section: m_sections )
+	{
+		if ( section->m_szSectionName == szSectionName )
+			return (IINISection*)&section;
+	}
+	return 0;
+}
+
+
 class CINIManager: public IINIManager
 {
 public:
 	virtual IINIFile *ReadString( const char *psz ) override;
+	bool IsWordSymbol( char c );
+	CUtlVector<CUtlString> TokenizeString();
 };
 
 IINIFile *CINIManager::ReadString( const char *psz )
 {
-	CINIFile *pFile = new CINIFile;
+	CINIFile *pFile = 0;
+	CINIFile file = {};
+	bool bIsQuoted;
+	bool bIsSlash;
+
+	bool bIsVarName;
+	bool bIsVarValue;
+	bool bIsSectionName;
+
+	CINISection currentSection;
+	SectionData_t currentSectionData;
+	size_t i = 0;
+
+	char c;
+
+	CUtlString szStringValue;
+
+	CUtlVector<CUtlString> tokens;
+	uint32_t nCurrentLine = 0;
+
+	while (true)
+	{
+		c = psz[i];
+		i++;
+		if (c == '\0')
+			break;
+		if (c == '\n')
+			nCurrentLine++;
+		
+
+		if (bIsQuoted)
+		{
+			if (bIsSlash)
+			{
+				bIsSlash = false;
+				switch (c)
+				{
+				case '\\':
+					szStringValue.AppendTail('\\');
+					continue;
+				case '"':
+					szStringValue.AppendTail('"');
+					continue;
+				case 'n':
+					szStringValue.AppendTail('\n');
+					continue;
+				case 't':
+					szStringValue.AppendTail('\n');
+					continue;
+				case '\n':
+					szStringValue.AppendTail('\n');
+					continue;
+				default:
+					szStringValue.AppendTail(c);
+					continue;
+				}
+			} else {
+				switch (c)
+				{
+
+				case '\\':
+					bIsSlash = true;
+					continue;
+
+				case '\n':
+					V_printf("line %i: new line was found but the string wasn't finished, did you forget to place \" in the end of the line?\n", nCurrentLine);
+				case '"':
+					bIsQuoted = false;
+					if (szStringValue == 0)
+						continue;
+					tokens.AppendTail(szStringValue);
+					szStringValue = 0;
+					continue;
+				default:
+					szStringValue.AppendTail(c);
+					continue;
+				}
+			}
+			
+		} else {
+			if (c == '"')
+			{
+				bIsQuoted = true;
+			}
+
+			if (IsWordSymbol(c))
+			{
+				szStringValue.AppendTail(c);
+				continue;
+			} else {
+				if (szStringValue != 0)
+					tokens.AppendTail(szStringValue);
+				szStringValue = 0;
+				if (V_isgraph(c) && c != '"')
+					tokens.AppendTail(CUtlString("%c", c));
+			}
+		}
+	};
+
+	currentSectionData.m_eSectionType = SECTIONTYPE_String;
+
+	for ( int i = 0; i < tokens.GetSize(); i++ )
+	{
+		if (tokens[i] == "]")
+		{
+				V_printf("Error: unexpected ]\n");
+				return 0;
+		}
+		if (tokens[i] == "[")
+		{
+			i++;
+			if (i>=tokens.GetSize())
+			{
+				V_printf("Error: Trailing section start\n");
+				return 0;
+			}
+			currentSection = {};
+			currentSection.m_szSectionName = tokens[i];
+			V_printf("[%s]\n",currentSection.m_szSectionName.GetString());
+
+			i++;
+			if (i>=tokens.GetSize())
+			{
+				V_printf("Error: Trailing section name\n");
+				return 0;
+			}
+			if (tokens[i] != "]")
+			{
+				V_printf("Error: expected ]\n");
+				return 0;
+			}
+			continue;
+		}
+		if (tokens[i] == "=")
+		{
+				V_printf("Error: expected key\n");
+				return 0;
+		}
+		currentSectionData = {};
+		currentSectionData.m_szKey = tokens[i];
+
+		
+
+		i++;
+		if (i>=tokens.GetSize())
+		{
+			V_printf("Error: trailing key\n");
+			return 0;
+		}
+		if (tokens[i] != "=")
+		{
+			V_printf("Error: expected =\n");
+			return 0;
+		}
+
+		i++;
+
+		if (i>=tokens.GetSize())
+		{
+			V_printf("Error: expected value\n");
+			return 0;
+		}
+		currentSectionData.m_szData = tokens[i];
+		currentSection.m_values.AppendTail(currentSectionData);
+
+	}
+
+	pFile = new CINIFile;
+	*pFile = file;
+
 	return (IINIFile*)pFile;
 }
+bool CINIManager::IsWordSymbol( char c )
+{
+	if (V_isalnum(c))
+		return true;
+	switch (c)
+	{
+	case '-':
+	case '_':
+	case '.':
+		return true;
+	default:
+		return false;
+	}
+}
+
+CUtlVector<CUtlString> TokenizeString();
 
 IINIManager *INIManager()
 {

tier2/filesystem.cpp

@@ -1,4 +1,4 @@
-#include "ifilesystem.h"
+#include "tier2/ifilesystem.h"
 #include "tier1/interface.h"
 #include "tier0/lib.h"
 
@@ -22,6 +22,11 @@ size_t IFileHandle::Tell( void )
 	return m_pFileSystem->Tell(this);
 }
 
+size_t IFileHandle::Size( void )
+{
+	return m_pFileSystem->Size(this);
+}
+
 void IFileHandle::Close( void )
 {
 	m_pFileSystem->Close(this);
@@ -32,8 +37,6 @@ class CFileSystem : public IFileSystem
 {
 public:
 	virtual void Init() override {
-		filesystem_backend->Init();
-		filesystem_pak->Init();
 	};
 	virtual void Shutdown() override {
 
@@ -41,13 +44,14 @@ public:
 
 	virtual IFileHandle *Open( const char *szFileName, int eOpCode ) override 
 	{
+		IFileSystem *pFileSystem;
 		IFileHandle *pHandle = NULL;
 
-		pHandle = filesystem_pak->Open(szFileName, eOpCode);
+		for ( pFileSystem = g_pFileSystems; pFileSystem; pFileSystem = pFileSystem->m_pNext )
-		if (pHandle) return pHandle;
+		{
-
+			pHandle = pFileSystem->Open(szFileName, eOpCode);
-		pHandle = filesystem_backend->Open(szFileName, eOpCode);
+			if (pHandle) return pHandle;
-		if (pHandle) return pHandle;
+		}
 
 		return NULL;
 	}
@@ -71,11 +75,30 @@ public:
 	{
 		return pFile->Tell();
 	}
+	virtual size_t Size( IFileHandle *pFile ) override
+	{
+		return pFile->Size();
+	}
 	virtual void Close( IFileHandle *pFile ) override
 	{
 
 	}
 };
 
-CFileSystem g_fileSystem;
+
-IFileSystem *filesystem = &g_fileSystem;
+static CFileSystem s_fileSystem;
+IFileSystem *filesystem = &s_fileSystem;
+
+IFileSystem *g_pFileSystems;
+
+CFileSystemRegistry::CFileSystemRegistry( InstantiateFileSystemFn fn, const char *szFileSystem )
+{
+	IFileSystem *pFileSystem = fn();
+	pFileSystem->RegisterFileSystem();
+}
+
+void IFileSystem::RegisterFileSystem()
+{
+	m_pNext = g_pFileSystems;
+	g_pFileSystems = this;
+};

tier2/filesystem_libc.cpp

@@ -1,4 +1,4 @@
-#include "ifilesystem.h"
+#include "tier2/ifilesystem.h"
 #include "tier1/interface.h"
 #include "tier0/lib.h"
 
@@ -6,14 +6,16 @@ class CLIBCFileHandle : public IFileHandle
 {
 public:
 	FILE *m_pFile;
-
+	size_t m_nSize;
 
 };
 
 class CLIBCFileSystem : public IFileSystem
 {
 public:
-	virtual void Init() override {};
+	virtual void Init() override {
+	
+	};
 	virtual void Shutdown() override {};
 
 	virtual IFileHandle *Open( const char *szFileName, int eOpCode ) override 
@@ -25,7 +27,7 @@ public:
 		switch (eOpCode)
 		{
 		case FILEMODE_READ:
-			szOperation = "r";
+			szOperation = "rb";
 			break;
 		default:
 			V_printf("Operation is not supported\n");
@@ -39,6 +41,9 @@ public:
 		pHandle = new CLIBCFileHandle;
 		pHandle->m_pFileSystem = this;
 		pHandle->m_pFile = pFile;
+		pHandle->Seek(SEEKMODE_RELATIVE_START, 0);
+		pHandle->m_nSize = pHandle->Tell();
+		pHandle->Seek(SEEKMODE_RELATIVE_END, 0);
 		return pHandle;
 	}
 	virtual size_t Write( IFileHandle *pFile, const void *pData, size_t nDataSize ) override
@@ -57,20 +62,23 @@ public:
 	{
 		CLIBCFileHandle *pHandle = (CLIBCFileHandle*)pFile;
 		int eLibcSeekMode = 0;
+		
+		if (!pHandle)
+			return 0;
+
 		switch (eSeekMode) {
-		case SEEKMODE_SET:
+		case SEEKMODE_RELATIVE_CURRENT:
-			eLibcSeekMode = SEEK_SET;
+			eLibcSeekMode = SEEK_CUR;
 			break;
 		case SEEKMODE_RELATIVE_END:
 			eLibcSeekMode = SEEK_END;
 			break;
 		case SEEKMODE_RELATIVE_START:
-			eLibcSeekMode = SEEK_CUR;
+			eLibcSeekMode = SEEK_SET;
 			break;
 		}
-		if (!pHandle)
+
-			return 0;
+		return V_fseek( pHandle->m_pFile, nOffset, eLibcSeekMode );
-		return V_fseek( pHandle->m_pFile, eLibcSeekMode, nOffset );
 	}
 
 	virtual size_t Tell( IFileHandle *pFile ) override
@@ -81,6 +89,16 @@ public:
 		return V_ftell(pHandle->m_pFile);
 	}
 	
+	virtual size_t Size( IFileHandle *pFile ) override
+	{
+		CLIBCFileHandle *pHandle = (CLIBCFileHandle*)pFile;
+		if (!pHandle)
+			return 0;
+		return pHandle->m_nSize;
+	}
+
+
+
 	virtual void Close( IFileHandle *pFile ) override
 	{
 		CLIBCFileHandle *pHandle = (CLIBCFileHandle*)pFile;
@@ -91,5 +109,4 @@ public:
 	}
 };
 
-CLIBCFileSystem g_libcFileSystem;
+EXPOSE_FILESYSTEM(CLIBCFileSystem, "sysfs");
-IFileSystem *filesystem_backend = &g_libcFileSystem;