Initial import. This version is somewhere around 0.1.9, or as Martin put it "this should be a fairly current version".

TDG

src/XOGLUtils.cpp

@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2005, Ben Supnik and Chris Serio.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ */
+ #include "XOGLUtils.h"
+
+// This had to be renamed because on Linux, namespaces appear to be shared between ourselves and XPlane
+// so i would end up overwritting XPlanes function pointer!
+#if APL
+//PFNGLBINDBUFFERARBPROC			glBindBufferARB			 = NULL;
+#endif
+#if IBM
+PFNGLBINDBUFFERARBPROC			glBindBufferARB			 = NULL;
+PFNGLACTIVETEXTUREARBPROC		glActiveTextureARB		 = NULL;
+PFNGLCLIENTACTIVETEXTUREARBPROC glClientActiveTextureARB = NULL;
+PFNGLMULTITEXCOORD2FARBPROC		glMultiTexCoord2fARB	 = NULL;
+PFNGLMULTITEXCOORD2FVARBPROC	glMultiTexCoord2fvARB	 = NULL;
+#endif
+
+/**************************************************
+Nasty Mac Specific Stuff to Load OGL DLL Extensions
+***************************************************/
+
+#if APL
+
+#include <CoreFoundation/CFBundle.h>
+#include <Carbon/Carbon.h>
+
+CFBundleRef	gBundleRefOpenGL = NULL;
+
+OSStatus aglInitEntryPoints (void)
+{
+    OSStatus err = noErr;
+    const Str255 frameworkName = "\pOpenGL.framework";
+    FSRefParam fileRefParam;
+    FSRef fileRef;
+    CFURLRef bundleURLOpenGL;
+
+    memset(&fileRefParam, 0, sizeof(fileRefParam));
+    memset(&fileRef, 0, sizeof(fileRef));
+
+    fileRefParam.ioNamePtr  = frameworkName;
+    fileRefParam.newRef = &fileRef;
+
+    // Frameworks directory/folder
+    err = FindFolder (kSystemDomain, kFrameworksFolderType, false,
+                      &fileRefParam.ioVRefNum, &fileRefParam.ioDirID);
+    if (noErr != err) {
+        return err;
+    }
+    err = PBMakeFSRefSync (&fileRefParam); // make FSRef for folder
+    if (noErr != err) {
+        return err;
+    }
+    // create URL to folder
+    bundleURLOpenGL = CFURLCreateFromFSRef (kCFAllocatorDefault,
+                                            &fileRef);
+    if (!bundleURLOpenGL) {
+        return paramErr;
+    }
+    // create ref to GL's bundle
+    gBundleRefOpenGL = CFBundleCreate (kCFAllocatorDefault,
+                                       bundleURLOpenGL);
+    if (!gBundleRefOpenGL) {
+        return paramErr;
+    }
+    CFRelease (bundleURLOpenGL); // release created bundle
+    // if the code was successfully loaded, look for our function.
+    if (!CFBundleLoadExecutable (gBundleRefOpenGL)) {
+        return paramErr;
+    }
+    return err;
+}
+
+void * aglGetProcAddress (char * pszProc)
+{
+	static bool first_time = true;
+	if (first_time)
+	{
+		first_time = false;
+		if (aglInitEntryPoints() != noErr)
+			return NULL;			
+	}
+    return CFBundleGetFunctionPointerForName (gBundleRefOpenGL,
+                CFStringCreateWithCStringNoCopy (NULL,
+                     pszProc, CFStringGetSystemEncoding (), NULL));
+}
+
+#define 	wglGetProcAddress(x)		aglGetProcAddress(x)
+
+#endif
+
+#if LIN
+
+#define		wglGetProcAddress(x)		glXGetProcAddressARB((GLubyte*) (x))
+
+#endif
+
+/**************************************************
+			   Utilities Initialization
+***************************************************/
+
+bool	OGL_UtilsInit()
+{
+	static bool firstTime = true;
+	if(firstTime)
+	{
+		// Initialize all OGL Function Pointers
+#if APL
+		//glBindBufferARB 		 = (PFNGLBINDBUFFERARBPROC)			 wglGetProcAddress("glBindBufferARB"		 );
+#endif		
+#if IBM		
+		glBindBufferARB			 = (PFNGLBINDBUFFERARBPROC)			 wglGetProcAddress("glBindBufferARB"		);
+		glActiveTextureARB 		 = (PFNGLACTIVETEXTUREARBPROC)		 wglGetProcAddress("glActiveTextureARB"		 );
+		glClientActiveTextureARB = (PFNGLCLIENTACTIVETEXTUREARBPROC) wglGetProcAddress("glClientActiveTextureARB");
+		glMultiTexCoord2fARB	 = (PFNGLMULTITEXCOORD2FARBPROC )	 wglGetProcAddress("glMultiTexCoord2fARB"    );
+		glMultiTexCoord2fvARB	 = (PFNGLMULTITEXCOORD2FVARBPROC )	 wglGetProcAddress("glMultiTexCoord2fvARB"   );
+#endif		
+		firstTime = false;
+	}
+
+	// Make sure everything got initialized
+	if(glBindBufferARB &&
+	   glActiveTextureARB &&
+	   glClientActiveTextureARB &&
+	   glMultiTexCoord2fARB &&
+	   glMultiTexCoord2fvARB)
+	{
+	   return true;
+	}
+	else
+		return false;
+
+}