+
+//
+// Quartz Support
+//
+
+#ifdef __WXMAC_OSX__
+// snippets from Sketch Sample from Apple :
+
+#define kGenericRGBProfilePathStr "/System/Library/ColorSync/Profiles/Generic RGB Profile.icc"
+/*
+ This function locates, opens, and returns the profile reference for the calibrated
+ Generic RGB color space. It is up to the caller to call CMCloseProfile when done
+ with the profile reference this function returns.
+*/
+CMProfileRef wxMacOpenGenericProfile(void)
+{
+ static CMProfileRef cachedRGBProfileRef = NULL;
+
+ // we only create the profile reference once
+ if (cachedRGBProfileRef == NULL)
+ {
+ CMProfileLocation loc;
+
+ loc.locType = cmPathBasedProfile;
+ strcpy(loc.u.pathLoc.path, kGenericRGBProfilePathStr);
+
+ verify_noerr( CMOpenProfile(&cachedRGBProfileRef, &loc) );
+ }
+
+ if (cachedRGBProfileRef)
+ {
+ // clone the profile reference so that the caller has their own reference, not our cached one
+ CMCloneProfileRef(cachedRGBProfileRef);
+ }
+
+ return cachedRGBProfileRef;
+}
+
+/*
+ Return the generic RGB color space. This is a 'get' function and the caller should
+ not release the returned value unless the caller retains it first. Usually callers
+ of this routine will immediately use the returned colorspace with CoreGraphics
+ so they typically do not need to retain it themselves.
+
+ This function creates the generic RGB color space once and hangs onto it so it can
+ return it whenever this function is called.
+*/
+
+CGColorSpaceRef wxMacGetGenericRGBColorSpace()
+{
+ static CGColorSpaceRef genericRGBColorSpace = NULL;
+
+ if (genericRGBColorSpace == NULL)
+ {
+ CMProfileRef genericRGBProfile = wxMacOpenGenericProfile();
+
+ if (genericRGBProfile)
+ {
+ genericRGBColorSpace = CGColorSpaceCreateWithPlatformColorSpace(genericRGBProfile);
+ wxASSERT_MSG( genericRGBColorSpace != NULL, wxT("couldn't create the generic RGB color space") ) ;
+
+ // we opened the profile so it is up to us to close it
+ CMCloseProfile(genericRGBProfile);
+ }
+ }
+ return genericRGBColorSpace;
+}
+#endif
+