1 files changed, 125 insertions, 0 deletions
diff --git a/libs/appleutility/CoreAudio/AudioUnits/AUPublic/Utility/AUBaseHelper.cpp b/libs/appleutility/CoreAudio/AudioUnits/AUPublic/Utility/AUBaseHelper.cpp
new file mode 100644
index 0000000000..2316807138
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+++ b/libs/appleutility/CoreAudio/AudioUnits/AUPublic/Utility/AUBaseHelper.cpp
@@ -0,0 +1,125 @@
+/*
+     File: AUBaseHelper.cpp
+ Abstract: AUBaseHelper.h
+  Version: 1.1
+ 
+ Disclaimer: IMPORTANT:  This Apple software is supplied to you by Apple
+ Inc. ("Apple") in consideration of your agreement to the following
+ terms, and your use, installation, modification or redistribution of
+ this Apple software constitutes acceptance of these terms.  If you do
+ not agree with these terms, please do not use, install, modify or
+ redistribute this Apple software.
+ 
+ In consideration of your agreement to abide by the following terms, and
+ subject to these terms, Apple grants you a personal, non-exclusive
+ license, under Apple's copyrights in this original Apple software (the
+ "Apple Software"), to use, reproduce, modify and redistribute the Apple
+ Software, with or without modifications, in source and/or binary forms;
+ provided that if you redistribute the Apple Software in its entirety and
+ without modifications, you must retain this notice and the following
+ text and disclaimers in all such redistributions of the Apple Software.
+ Neither the name, trademarks, service marks or logos of Apple Inc. may
+ be used to endorse or promote products derived from the Apple Software
+ without specific prior written permission from Apple.  Except as
+ expressly stated in this notice, no other rights or licenses, express or
+ implied, are granted by Apple herein, including but not limited to any
+ patent rights that may be infringed by your derivative works or by other
+ works in which the Apple Software may be incorporated.
+ 
+ The Apple Software is provided by Apple on an "AS IS" basis.  APPLE
+ MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
+ THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
+ FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
+ OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
+ 
+ IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
+ MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
+ AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
+ STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+ 
+ Copyright (C) 2014 Apple Inc. All Rights Reserved.
+ 
+*/
+#include "AUBaseHelper.h"
+
+#if !defined(__COREAUDIO_USE_FLAT_INCLUDES__)
+	#include <AudioUnit/AudioUnitProperties.h>
+#else
+	#include <AudioUnitProperties.h>
+#endif
+
+OSStatus	GetFileRefPath (CFDictionaryRef parent, CFStringRef frKey, CFStringRef * fPath)
+{	
+	static CFStringRef kFRString = CFSTR (kAUPresetExternalFileRefs);
+	
+	const void* frVal = CFDictionaryGetValue(parent, kFRString);
+	if (!frVal) return kAudioUnitErr_InvalidPropertyValue;
+
+	const void* frString = CFDictionaryGetValue ((CFDictionaryRef)frVal, frKey);
+	if (!frString) return kAudioUnitErr_InvalidPropertyValue;
+		
+	if (fPath)
+		*fPath = (CFStringRef)frString;
+	
+	return noErr;
+}
+
+CFMutableDictionaryRef CreateFileRefDict (CFStringRef fKey, CFStringRef fPath, CFMutableDictionaryRef fileRefDict)
+{
+	if (!fileRefDict)
+		fileRefDict = CFDictionaryCreateMutable	(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+
+	CFDictionarySetValue (fileRefDict, fKey, fPath);
+	
+	return fileRefDict;
+}
+
+#if TARGET_OS_MAC
+// check if the URL can be accessed for reading/writing.  Returns 0 if yes, or the error value.
+int AccessURLAsset(const CFURLRef inURL, int mode)
+{
+    char path[PATH_MAX];
+    if (CFURLGetFileSystemRepresentation(inURL, TRUE, (UInt8 *)path, PATH_MAX) == FALSE)
+		return kAudio_FileNotFoundError;
+	// check whether we have access
+	int ret = access(path, mode);
+//	syslog(LOG_CRIT, "access() error is %d for \"%s\".\n", ret, path);
+	if (ret == 0) return 0;
+	switch (errno) {
+		case EACCES:
+		case EPERM:
+			return -54;	/*permission denied error*/
+		case ENOENT:
+		case ENOTDIR:
+		case ELOOP:
+			return kAudio_FileNotFoundError;
+		default:
+			return errno;
+	}
+}
+#endif
+
+#if DEBUG
+//_____________________________________________________________________________
+//
+void PrintAUParamEvent (AudioUnitParameterEvent& event, FILE* f)
+{
+		bool isRamp = event.eventType == kParameterEvent_Ramped;
+		fprintf (f, "\tParamID=%ld,Scope=%ld,Element=%ld\n", (long)event.parameter, (long)event.scope, (long)event.element);
+		fprintf (f, "\tEvent Type:%s,", (isRamp ? "ramp" : "immediate"));
+		if (isRamp)
+			fprintf (f, "start=%ld,dur=%ld,startValue=%f,endValue=%f\n",
+					(long)event.eventValues.ramp.startBufferOffset, (long)event.eventValues.ramp.durationInFrames, 
+					event.eventValues.ramp.startValue, event.eventValues.ramp.endValue);
+		else
+			fprintf (f, "start=%ld,value=%f\n", 
+					(long)event.eventValues.immediate.bufferOffset, 
+					event.eventValues.immediate.value);
+		fprintf (f, "- - - - - - - - - - - - - - - -\n");
+}
+#endif
+