Move wgl extension into platform specific init code.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@2563 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/COpenGLDriver.cpp

@@ -351,9 +351,14 @@ bool COpenGLDriver::initDriver(irr::SIrrlichtCreationParameters params)
 
 	genericDriverInit(params.WindowSize, params.Stencilbuffer);
 
+#ifdef WGL_EXT_swap_control
+	PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT;
+	// vsync extension
+	wglSwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
 	// set vsync
 	if (wglSwapIntervalEXT)
 		wglSwapIntervalEXT(params.Vsync ? 1 : 0);
+#endif
 
 	// set exposed data
 	ExposedData.OpenGLWin32.HDc = HDc;

source/Irrlicht/COpenGLExtensionHandler.cpp

@@ -35,9 +35,7 @@ COpenGLExtensionHandler::COpenGLExtensionHandler() :
 	pGlStencilFuncSeparate(0), pGlStencilOpSeparate(0),
 	pGlStencilFuncSeparateATI(0), pGlStencilOpSeparateATI(0),
 	pGlCompressedTexImage2D(0),
-#ifdef _IRR_COMPILE_WITH_WINDOWS_DEVICE_
-	wglSwapIntervalEXT(0),
-#elif defined(GLX_SGI_swap_control)
+#if defined(GLX_SGI_swap_control)
 	glxSwapIntervalSGI(0),
 #endif
 	pGlBindFramebufferEXT(0), pGlDeleteFramebuffersEXT(0), pGlGenFramebuffersEXT(0),
@@ -183,9 +181,6 @@ void COpenGLExtensionHandler::initExtensions(bool stencilBuffer)
 	pGlGetBufferPointervARB= (PFNGLGETBUFFERPOINTERVARBPROC) wglGetProcAddress("glGetBufferPointervARB");
 
 
-	// vsync extension
-	wglSwapIntervalEXT = (PFNWGLSWAPINTERVALFARPROC) wglGetProcAddress("wglSwapIntervalEXT");
-
 #elif defined(_IRR_COMPILE_WITH_X11_DEVICE_) || defined (_IRR_COMPILE_WITH_SDL_DEVICE_)
 	#ifdef _IRR_OPENGL_USE_EXTPOINTER_
 

source/Irrlicht/COpenGLExtensionHandler.h

@@ -916,10 +916,7 @@ class COpenGLExtensionHandler
 		PFNGLSTENCILFUNCSEPARATEATIPROC pGlStencilFuncSeparateATI;
 		PFNGLSTENCILOPSEPARATEATIPROC pGlStencilOpSeparateATI;
 		PFNGLCOMPRESSEDTEXIMAGE2DPROC pGlCompressedTexImage2D;
-		#ifdef _IRR_WINDOWS_API_
-		typedef BOOL (APIENTRY *PFNWGLSWAPINTERVALFARPROC)(int);
-		PFNWGLSWAPINTERVALFARPROC wglSwapIntervalEXT;
-		#elif defined(_IRR_LINUX_PLATFORM_) && defined(GLX_SGI_swap_control)
+		#if defined(_IRR_LINUX_PLATFORM_) && defined(GLX_SGI_swap_control)
 		PFNGLXSWAPINTERVALSGIPROC glxSwapIntervalSGI;
 		#endif
 		PFNGLBINDFRAMEBUFFEREXTPROC pGlBindFramebufferEXT;