Changed: #1275 Create an OpenGL ES driver

code/nel/include/nel/3d/driver_user.h

@@ -123,7 +123,7 @@ public:
 
 	/// \name Object
 	// @{
-	CDriverUser (uint windowIcon = 0, bool direct3d = false, emptyProc exitFunc = 0);
+	CDriverUser (uint windowIcon, UDriver::TDriver driver, emptyProc exitFunc = 0);
 	virtual	~CDriverUser();
 	// @}
 

code/nel/include/nel/3d/dru.h

@@ -27,9 +27,11 @@
 
 #ifdef NL_OS_WINDOWS
 # define NL3D_GL_DLL_NAME "nel_drv_opengl_win"
+# define NL3D_GLES_DLL_NAME "nel_drv_opengles_win"
 # define NL3D_D3D_DLL_NAME "nel_drv_direct3d_win"
 #elif defined (NL_OS_UNIX)
 # define NL3D_GL_DLL_NAME "nel_drv_opengl"
+# define NL3D_GLES_DLL_NAME "nel_drv_opengles"
 #else
 # error "Unknown system"
 #endif
@@ -43,6 +45,7 @@ struct EDru : public NLMISC::Exception
 	EDru(const std::string &reason) : Exception(reason) {}
 };
 
+// OpenGL
 struct EDruOpenglDriverNotFound : public EDru
 {
 	EDruOpenglDriverNotFound() : EDru( NL3D_GL_DLL_NAME " not found" ) {}
@@ -68,7 +71,34 @@ struct EDruOpenglDriverCantCreateDriver : public EDru
 	EDruOpenglDriverCantCreateDriver() : EDru( NL3D_GL_DLL_NAME " can't create driver" ) {}
 };
 
+// OpenGL ES
+struct EDruOpenglEsDriverNotFound : public EDru
+{
+	EDruOpenglEsDriverNotFound() : EDru( NL3D_GLES_DLL_NAME " not found" ) {}
+};
+
+struct EDruOpenglEsDriverCorrupted : public EDru
+{
+	EDruOpenglEsDriverCorrupted() : EDru( "Can't get NL3D_createIDriverInstance from " NL3D_GLES_DLL_NAME " (Bad dll?)" ) {}
+};
+
+struct EDruOpenglEsDriverOldVersion : public EDru
+{
+	EDruOpenglEsDriverOldVersion() : EDru( NL3D_GLES_DLL_NAME " is a too old version. Ask for a more recent file" ) {}
+};
+
+struct EDruOpenglEsDriverUnknownVersion : public EDru
+{
+	EDruOpenglEsDriverUnknownVersion() : EDru( NL3D_GLES_DLL_NAME " is more recent than the application" ) {}
+};
+
+struct EDruOpenglEsDriverCantCreateDriver : public EDru
+{
+	EDruOpenglEsDriverCantCreateDriver() : EDru( NL3D_GLES_DLL_NAME " can't create driver" ) {}
+};
+
 #ifdef NL_OS_WINDOWS
+// Direct3D
 struct EDruDirect3dDriverNotFound : public EDru
 {
 	EDruDirect3dDriverNotFound() : EDru( NL3D_D3D_DLL_NAME " not found" ) {}
@@ -103,6 +133,9 @@ public:
 	/// Portable Function which create a GL Driver (using gl dll...).
 	static IDriver		*createGlDriver() throw(EDru);
 
+	/// Portable Function which create a GL ES Driver (using gl dll...).
+	static IDriver		*createGlEsDriver() throw(EDru);
+
 #ifdef NL_OS_WINDOWS
 	/// Windows Function which create a Direct3d Driver.
 	static IDriver		*createD3DDriver() throw(EDru);

code/nel/include/nel/3d/u_driver.h

@@ -139,6 +139,9 @@ public:
 	enum TStencilOp { keep = 0, zero, replace, incr, decr, invert };
 	enum TStencilFunc { never = 0, less, lessequal, equal, notequal, greaterequal, greater, always};
 
+	// Existing drivers
+	enum TDriver { Direct3d = 0, OpenGl, OpenGlEs };
+
 public:
 	/// The EventServer of this driver. Init after setDisplay()!!
 	NLMISC::CEventServer			EventServer;
@@ -844,6 +847,7 @@ public:
 	 *	This is the static function which build a UDriver, the root for all 3D functions.
 	 */
 	static	UDriver			*createDriver(uint windowIcon = 0, bool direct3d = false, emptyProc exitFunc = 0);
+	static	UDriver			*createDriver(uint windowIcon, TDriver driver, emptyProc exitFunc = 0);
 
 	/**
 	 *	Purge static memory

code/nel/src/3d/driver/opengl/driver_opengl.cpp

@@ -90,43 +90,39 @@ const uint32 CDriverGL::ReleaseVersion = 0x11;
 // Number of register to allocate for the EXTVertexShader extension
 const uint CDriverGL::_EVSNumConstant = 97;
 
-#ifdef NL_OS_WINDOWS
-
 #ifdef NL_STATIC
 
-#	pragma comment(lib, "opengl32")
+#ifdef USE_OPENGLES
-#	pragma comment(lib, "dinput8")
-#	pragma comment(lib, "dxguid")
 
-IDriver* createGlDriverInstance ()
+IDriver* createGlEsDriverInstance ()
 {
 	return new CDriverGL;
 }
 
 #else
 
-__declspec(dllexport) IDriver* NL3D_createIDriverInstance ()
+IDriver* createGlDriverInstance ()
 {
 	return new CDriverGL;
 }
 
-__declspec(dllexport) uint32 NL3D_interfaceVersion ()
-{
-	return IDriver::InterfaceVersion;
-}
-
 #endif
 
-#elif defined (NL_OS_UNIX)
+#else
 
-#ifdef NL_STATIC
+#ifdef NL_OS_WINDOWS
 
-IDriver* createGlDriverInstance ()
+__declspec(dllexport) IDriver* NL3D_createIDriverInstance ()
 {
 	return new CDriverGL;
 }
 
-#else
+__declspec(dllexport) uint32 NL3D_interfaceVersion ()
+{
+	return IDriver::InterfaceVersion;
+}
+
+#elif defined (NL_OS_UNIX)
 
 extern "C"
 {
@@ -141,9 +137,9 @@ extern "C"
 	}
 }
 
-#endif
+#endif // NL_OS_WINDOWS
 
-#endif // NL_OS_UNIX
+#endif // NL_STATIC
 
 GLenum CDriverGL::NLCubeFaceToGLCubeFace[6] =
 {

code/nel/src/3d/driver_user.cpp

@@ -69,25 +69,29 @@ UDriver::~UDriver()
 	purgeMemory();
 }
 
-
 // ***************************************************************************
 void					UDriver::setMatrixMode2D11()
 {
 	setMatrixMode2D(CFrustum(0.0f,1.0f,0.0f,1.0f,-1.0f,1.0f,false));
 }
+
 // ***************************************************************************
 void					UDriver::setMatrixMode2D43()
 {
 	setMatrixMode2D(CFrustum(0.0f,4.0f/3.0f,0.0f,1.0f,-1.0f,1.0f,false));
 }
 
-
 // ***************************************************************************
 UDriver					*UDriver::createDriver(uint windowIcon, bool direct3d, emptyProc exitFunc)
 {
-	return new CDriverUser (windowIcon, direct3d, exitFunc);
+	return new CDriverUser (windowIcon, direct3d ? CDriverUser::Direct3d:CDriverUser::OpenGl, exitFunc);
 }
 
+// ***************************************************************************
+UDriver					*UDriver::createDriver(uint windowIcon, TDriver driver, emptyProc exitFunc)
+{
+	return new CDriverUser (windowIcon, (CDriverUser::TDriver)driver, exitFunc);
+}
 
 // ***************************************************************************
 void					UDriver::purgeMemory()
@@ -110,9 +114,8 @@ bool	CDriverUser::_StaticInit= false;
 
 
 // ***************************************************************************
-CDriverUser::CDriverUser (uint windowIcon, bool direct3d, emptyProc exitFunc)
+CDriverUser::CDriverUser (uint windowIcon, TDriver driver, emptyProc exitFunc)
 {
-
 	// The enum of IDriver and UDriver MUST be the same!!!
 	nlassert((uint)IDriver::idCount == (uint)UDriver::idCount);
 	nlassert((uint)IDriver::typeCount == (uint)UDriver::typeCount);
@@ -134,13 +137,16 @@ CDriverUser::CDriverUser (uint windowIcon, bool direct3d, emptyProc exitFunc)
 
 	// Create/Init Driver.
 #if defined(NL_OS_WINDOWS)
-	if (direct3d)
+	if (driver == Direct3d)
 		_Driver= CDRU::createD3DDriver();
 #endif
 
-	if (!_Driver)
+	if (!_Driver && driver == OpenGl)
 		_Driver= CDRU::createGlDriver();
 
+	if (!_Driver && driver == OpenGlEs)
+		_Driver= CDRU::createGlEsDriver();
+
 	nlassert(_Driver);
 	_Driver->init (windowIcon, exitFunc);
 

code/nel/src/3d/dru.cpp

@@ -64,6 +64,10 @@ extern IDriver* createGlDriverInstance ();
 extern IDriver* createD3DDriverInstance ();
 #endif
 
+#ifdef NL_OPENGLES_AVAILABLE
+extern IDriver* createGlEsDriverInstance ();
+#endif
+
 #endif
 
 // ***************************************************************************
@@ -82,36 +86,25 @@ IDriver		*CDRU::createGlDriver() throw (EDru)
 	IDRV_CREATE_PROC	createDriver = NULL;
 	IDRV_VERSION_PROC	versionDriver = NULL;
 
-//#ifdef NL_OS_WINDOWS
-
-	// WINDOWS code.
-//	HINSTANCE			hInst;
-
-//	hInst=LoadLibrary(NL3D_GL_DLL_NAME);
 	CLibrary	driverLib;
 
 #if defined(NL_OS_UNIX) && defined(NL_DRIVER_PREFIX)
 	driverLib.addLibPath(NL_DRIVER_PREFIX);
 #endif
 
-//	if (!hInst)
 	if (!driverLib.loadLibrary(NL3D_GL_DLL_NAME, true, true, false))
 	{
 		throw EDruOpenglDriverNotFound();
 	}
 
-//	char buffer[1024], *ptr;
-//	SearchPath (NULL, NL3D_GL_DLL_NAME, NULL, 1023, buffer, &ptr);
 	nlinfo ("Using the library '"NL3D_GL_DLL_NAME"' that is in the directory: '%s'", driverLib.getLibFileName().c_str());
 
-//	createDriver = (IDRV_CREATE_PROC) GetProcAddress (hInst, IDRV_CREATE_PROC_NAME);
 	createDriver = (IDRV_CREATE_PROC) driverLib.getSymbolAddress(IDRV_CREATE_PROC_NAME);
 	if (createDriver == NULL)
 	{
 		throw EDruOpenglDriverCorrupted();
 	}
 
-//	versionDriver = (IDRV_VERSION_PROC) GetProcAddress (hInst, IDRV_VERSION_PROC_NAME);
 	versionDriver = (IDRV_VERSION_PROC) driverLib.getSymbolAddress(IDRV_VERSION_PROC_NAME);
 	if (versionDriver != NULL)
 	{
@@ -121,44 +114,67 @@ IDriver		*CDRU::createGlDriver() throw (EDru)
 			throw EDruOpenglDriverUnknownVersion();
 	}
 
-//#elif defined (NL_OS_UNIX)
-//
-//	void *handle = dlopen(NL3D_GL_DLL_NAME, RTLD_NOW);
-//
-//	if (handle == NULL)
-//	{
-//		nlwarning ("when loading dynamic library '%s': %s", NL3D_GL_DLL_NAME, dlerror());
-//		throw EDruOpenglDriverNotFound();
-//	}
-//
-//	/* Not ANSI. Might produce a warning */
-//	createDriver = (IDRV_CREATE_PROC) dlsym (handle, IDRV_CREATE_PROC_NAME);
-//	if (createDriver == NULL)
-//	{
-//		nlwarning ("when getting function in dynamic library '%s': %s", NL3D_GL_DLL_NAME, dlerror());
-//		throw EDruOpenglDriverCorrupted();
-//	}
-//
-//	versionDriver = (IDRV_VERSION_PROC) dlsym (handle, IDRV_VERSION_PROC_NAME);
-//	if (versionDriver != NULL)
-//	{
-//		if (versionDriver()<IDriver::InterfaceVersion)
-//			throw EDruOpenglDriverOldVersion();
-//		else if (versionDriver()>IDriver::InterfaceVersion)
-//			throw EDruOpenglDriverUnknownVersion();
-//	}
-//
-//#else // NL_OS_UNIX
-//#error "Dynamic DLL loading not implemented!"
-//#endif // NL_OS_UNIX
-
 	IDriver		*ret= createDriver();
 	if (ret == NULL)
 	{
 		throw EDruOpenglDriverCantCreateDriver();
 	}
+
 	return ret;
+#endif
+}
+
+// ***************************************************************************
+IDriver		*CDRU::createGlEsDriver() throw (EDru)
+{
+#ifdef NL_STATIC
+
+#ifdef NL_OPENGLES_AVAILABLE
+	return createGlEsDriverInstance ();
+#else
+	return NULL;
+#endif // NL_OPENGLES_AVAILABLE
+
+#else
+
+	IDRV_CREATE_PROC	createDriver = NULL;
+	IDRV_VERSION_PROC	versionDriver = NULL;
+
+	CLibrary	driverLib;
+
+#if defined(NL_OS_UNIX) && defined(NL_DRIVER_PREFIX)
+	driverLib.addLibPath(NL_DRIVER_PREFIX);
+#endif
+
+	if (!driverLib.loadLibrary(NL3D_GLES_DLL_NAME, true, true, false))
+	{
+		throw EDruOpenglEsDriverNotFound();
+	}
+
+	nlinfo ("Using the library '"NL3D_GLES_DLL_NAME"' that is in the directory: '%s'", driverLib.getLibFileName().c_str());
+
+	createDriver = (IDRV_CREATE_PROC) driverLib.getSymbolAddress(IDRV_CREATE_PROC_NAME);
+	if (createDriver == NULL)
+	{
+		throw EDruOpenglDriverCorrupted();
+	}
+
+	versionDriver = (IDRV_VERSION_PROC) driverLib.getSymbolAddress(IDRV_VERSION_PROC_NAME);
+	if (versionDriver != NULL)
+	{
+		if (versionDriver()<IDriver::InterfaceVersion)
+			throw EDruOpenglDriverOldVersion();
+		else if (versionDriver()>IDriver::InterfaceVersion)
+			throw EDruOpenglDriverUnknownVersion();
+	}
 
+	IDriver		*ret= createDriver();
+	if (ret == NULL)
+	{
+		throw EDruOpenglEsDriverCantCreateDriver();
+	}
+
+	return ret;
 #endif
 }
 
@@ -181,31 +197,21 @@ IDriver		*CDRU::createD3DDriver() throw (EDru)
 	IDRV_CREATE_PROC	createDriver = NULL;
 	IDRV_VERSION_PROC	versionDriver = NULL;
 
-	// WINDOWS code.
-//	HINSTANCE			hInst;
-
-//	hInst=LoadLibrary(NL3D_D3D_DLL_NAME);
-
 	CLibrary driverLib;
 
-//	if (!hInst)
 	if (!driverLib.loadLibrary(NL3D_D3D_DLL_NAME, true, true, false))
 	{
 		throw EDruDirect3dDriverNotFound();
 	}
 
-//	char buffer[1024], *ptr;
-//	SearchPath (NULL, NL3D_D3D_DLL_NAME, NULL, 1023, buffer, &ptr);
 	nlinfo ("Using the library '"NL3D_D3D_DLL_NAME"' that is in the directory: '%s'", driverLib.getLibFileName().c_str());
 
-//	createDriver = (IDRV_CREATE_PROC) GetProcAddress (hInst, IDRV_CREATE_PROC_NAME);
 	createDriver = (IDRV_CREATE_PROC) driverLib.getSymbolAddress(IDRV_CREATE_PROC_NAME);
 	if (createDriver == NULL)
 	{
 		throw EDruDirect3dDriverCorrupted();
 	}
 
-//	versionDriver = (IDRV_VERSION_PROC) GetProcAddress (hInst, IDRV_VERSION_PROC_NAME);
 	versionDriver = (IDRV_VERSION_PROC) driverLib.getSymbolAddress(IDRV_VERSION_PROC_NAME);
 	if (versionDriver != NULL)
 	{
@@ -220,8 +226,8 @@ IDriver		*CDRU::createD3DDriver() throw (EDru)
 	{
 		throw EDruDirect3dDriverCantCreateDriver();
 	}
-	return ret;
 
+	return ret;
 #endif
 }
 #endif // NL_OS_WINDOWS