Added Gerard Ziemski's new sources for faster dynamic symbol lookup on

Mac OS X. Removed workarounds for earlier JAWT bugs on OS X.


git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@60 232f8b59-042b-4e1e-8c03-345bb8c30851

1 files changed, 39 insertions, 18 deletions

diff --git a/src/native/jogl/MacOSXWindowSystemInterface.m b/src/native/jogl/MacOSXWindowSystemInterface.m
index 11188f377..0499984c3 100644
--- a/src/native/jogl/MacOSXWindowSystemInterface.m
+++ b/src/native/jogl/MacOSXWindowSystemInterface.m
@@ -6,7 +6,7 @@ typedef int Bool;
 void* createContext(void* nsView, void* shareContext) {
   NSView *view = nsView;
   NSOpenGLContext *share = shareContext;
-        
+
   // FIXME: hardcoded pixel format. Instead pass these attributes down
   // as arguments. There is really no way to enumerate the possible
   // pixel formats for a given window on Mac OS X, so we will assume
@@ -24,16 +24,14 @@ void* createContext(void* nsView, void* shareContext) {
     NSOpenGLPFAAccumSize, 0,
     0
   };
-    
-  NSRect rect = [view frame];
-    
-  NSOpenGLPixelFormat* fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes: (NSOpenGLPixelFormatAttribute*) attribs]; 
-    
+
+  NSOpenGLPixelFormat* fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes: (NSOpenGLPixelFormatAttribute*) attribs];
+
   NSOpenGLContext* context = [[NSOpenGLContext alloc] initWithFormat: [fmt autorelease] shareContext: share];
-    
+
   if (view != nil) {
     [context setView: view];
-        
+
     [context makeCurrentContext];
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
     [context update];
@@ -45,7 +43,7 @@ void* createContext(void* nsView, void* shareContext) {
 
 Bool makeCurrentContext(void* nsView, void* nsContext) {
   NSOpenGLContext *context = nsContext;
-    
+
   [context makeCurrentContext];
   return true;
 }
@@ -53,7 +51,7 @@ Bool makeCurrentContext(void* nsView, void* nsContext) {
 Bool clearCurrentContext(void* nsView, void* nsContext) {
   NSView *view = nsView;
   NSOpenGLContext *context = nsContext;
-    
+
   [NSOpenGLContext clearCurrentContext];
   return true;
 }
@@ -61,13 +59,13 @@ Bool clearCurrentContext(void* nsView, void* nsContext) {
 void updateContext(void* nsView, void* nsContext) {
   NSView *view = nsView;
   NSOpenGLContext *context = nsContext;
-    
+
   [context update];
 }
 
 Bool deleteContext(void* nsView, void* nsContext) {
   NSOpenGLContext *context = nsContext;
-    
+
   [context setView: nil];
   [context release];
   return true;
@@ -82,14 +80,37 @@ Bool flushBuffer(void* nsView, void* nsContext) {
 
 
 #include <mach-o/dyld.h>
+Bool imagesInitialized = false;
+static char libGLStr[] = "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib";
+static char libGLUStr[] = "/System/Library/Frameworks/OpenGL.framework/Libraries/libGLU.dylib";
+static const struct mach_header *libGLImage;
+static const struct mach_header *libGLUImage;
 void* getProcAddress(const char *procname) {
-  void *funcPtr = NULL;
-  static char underscoreName[256];
-  strcpy(underscoreName, "_");
+  if (imagesInitialized == false) {
+    imagesInitialized = true;
+    unsigned long options = NSADDIMAGE_OPTION_RETURN_ON_ERROR;
+    libGLImage = NSAddImage(libGLStr, options);
+    libGLUImage = NSAddImage(libGLUStr, options);
+  }
+
+  unsigned long options = NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR;
+  char underscoreName[512] = "_";
   strcat(underscoreName, procname);
-  if (NSIsSymbolNameDefined(underscoreName)) {
+
+  if (NSIsSymbolNameDefinedInImage(libGLImage, underscoreName) == YES) {
+    NSSymbol sym = NSLookupSymbolInImage(libGLImage, underscoreName, options);
+    return NSAddressOfSymbol(sym);
+  }
+
+  if (NSIsSymbolNameDefinedInImage(libGLUImage, underscoreName) == YES) {
+    NSSymbol sym = NSLookupSymbolInImage(libGLUImage, underscoreName, options);
+    return NSAddressOfSymbol(sym);
+  }
+
+  if (NSIsSymbolNameDefinedWithHint(underscoreName, "GL")) {
     NSSymbol sym = NSLookupAndBindSymbol(underscoreName);
-    funcPtr = (void *)NSAddressOfSymbol(sym);
+    return NSAddressOfSymbol(sym);
   }
-  return funcPtr;
+
+  return NULL;
 }