From 9cd57b731ab1c666d4a1cb725538fdc137763d12 Mon Sep 17 00:00:00 2001 From: Starla Insigna Date: Sat, 30 Jul 2011 11:19:14 -0400 Subject: Initial commit (version 0.2.1) --- libs/CocosDenshion/CDOpenALSupport.m | 246 +++++++++++++++++++++++++++++++++++ 1 file changed, 246 insertions(+) create mode 100755 libs/CocosDenshion/CDOpenALSupport.m (limited to 'libs/CocosDenshion/CDOpenALSupport.m') diff --git a/libs/CocosDenshion/CDOpenALSupport.m b/libs/CocosDenshion/CDOpenALSupport.m new file mode 100755 index 0000000..ab0df8e --- /dev/null +++ b/libs/CocosDenshion/CDOpenALSupport.m @@ -0,0 +1,246 @@ +/* + + 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) 2009 Apple Inc. All Rights Reserved. + + $Id: CDOpenALSupport.h 16 2010-03-11 06:22:10Z steveoldmeadow $ + */ + +#import "CDOpenALSupport.h" +#import "CocosDenshion.h" +#import +#import + +//Taken from oalTouch MyOpenALSupport 1.1 +void* CDloadWaveAudioData(CFURLRef inFileURL, ALsizei *outDataSize, ALenum *outDataFormat, ALsizei* outSampleRate) +{ + OSStatus err = noErr; + UInt64 fileDataSize = 0; + AudioStreamBasicDescription theFileFormat; + UInt32 thePropertySize = sizeof(theFileFormat); + AudioFileID afid = 0; + void* theData = NULL; + + // Open a file with ExtAudioFileOpen() + err = AudioFileOpenURL(inFileURL, kAudioFileReadPermission, 0, &afid); + if(err) { CDLOG(@"MyGetOpenALAudioData: AudioFileOpenURL FAILED, Error = %ld\n", err); goto Exit; } + + // Get the audio data format + err = AudioFileGetProperty(afid, kAudioFilePropertyDataFormat, &thePropertySize, &theFileFormat); + if(err) { CDLOG(@"MyGetOpenALAudioData: AudioFileGetProperty(kAudioFileProperty_DataFormat) FAILED, Error = %ld\n", err); goto Exit; } + + if (theFileFormat.mChannelsPerFrame > 2) { + CDLOG(@"MyGetOpenALAudioData - Unsupported Format, channel count is greater than stereo\n"); goto Exit; + } + + if ((theFileFormat.mFormatID != kAudioFormatLinearPCM) || (!TestAudioFormatNativeEndian(theFileFormat))) { + CDLOG(@"MyGetOpenALAudioData - Unsupported Format, must be little-endian PCM\n"); goto Exit; + } + + if ((theFileFormat.mBitsPerChannel != 8) && (theFileFormat.mBitsPerChannel != 16)) { + CDLOG(@"MyGetOpenALAudioData - Unsupported Format, must be 8 or 16 bit PCM\n"); goto Exit; + } + + + thePropertySize = sizeof(fileDataSize); + err = AudioFileGetProperty(afid, kAudioFilePropertyAudioDataByteCount, &thePropertySize, &fileDataSize); + if(err) { CDLOG(@"MyGetOpenALAudioData: AudioFileGetProperty(kAudioFilePropertyAudioDataByteCount) FAILED, Error = %ld\n", err); goto Exit; } + + // Read all the data into memory + UInt32 dataSize = (UInt32)fileDataSize; + theData = malloc(dataSize); + if (theData) + { + AudioFileReadBytes(afid, false, 0, &dataSize, theData); + if(err == noErr) + { + // success + *outDataSize = (ALsizei)dataSize; + //This fix was added by me, however, 8 bit sounds have a clipping sound at the end so aren't really usable (SO) + if (theFileFormat.mBitsPerChannel == 16) { + *outDataFormat = (theFileFormat.mChannelsPerFrame > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16; + } else { + *outDataFormat = (theFileFormat.mChannelsPerFrame > 1) ? AL_FORMAT_STEREO8 : AL_FORMAT_MONO8; + } + *outSampleRate = (ALsizei)theFileFormat.mSampleRate; + } + else + { + // failure + free (theData); + theData = NULL; // make sure to return NULL + CDLOG(@"MyGetOpenALAudioData: ExtAudioFileRead FAILED, Error = %ld\n", err); goto Exit; + } + } + +Exit: + // Dispose the ExtAudioFileRef, it is no longer needed + if (afid) AudioFileClose(afid); + return theData; +} + +//Taken from oalTouch MyOpenALSupport 1.4 +void* CDloadCafAudioData(CFURLRef inFileURL, ALsizei *outDataSize, ALenum *outDataFormat, ALsizei* outSampleRate) +{ + OSStatus status = noErr; + BOOL abort = NO; + SInt64 theFileLengthInFrames = 0; + AudioStreamBasicDescription theFileFormat; + UInt32 thePropertySize = sizeof(theFileFormat); + ExtAudioFileRef extRef = NULL; + void* theData = NULL; + AudioStreamBasicDescription theOutputFormat; + UInt32 dataSize = 0; + + // Open a file with ExtAudioFileOpen() + status = ExtAudioFileOpenURL(inFileURL, &extRef); + if (status != noErr) + { + CDLOG(@"MyGetOpenALAudioData: ExtAudioFileOpenURL FAILED, Error = %ld\n", status); + abort = YES; + } + if (abort) + goto Exit; + + // Get the audio data format + status = ExtAudioFileGetProperty(extRef, kExtAudioFileProperty_FileDataFormat, &thePropertySize, &theFileFormat); + if (status != noErr) + { + CDLOG(@"MyGetOpenALAudioData: ExtAudioFileGetProperty(kExtAudioFileProperty_FileDataFormat) FAILED, Error = %ld\n", status); + abort = YES; + } + if (abort) + goto Exit; + + if (theFileFormat.mChannelsPerFrame > 2) + { + CDLOG(@"MyGetOpenALAudioData - Unsupported Format, channel count is greater than stereo\n"); + abort = YES; + } + if (abort) + goto Exit; + + // Set the client format to 16 bit signed integer (native-endian) data + // Maintain the channel count and sample rate of the original source format + theOutputFormat.mSampleRate = theFileFormat.mSampleRate; + theOutputFormat.mChannelsPerFrame = theFileFormat.mChannelsPerFrame; + + theOutputFormat.mFormatID = kAudioFormatLinearPCM; + theOutputFormat.mBytesPerPacket = 2 * theOutputFormat.mChannelsPerFrame; + theOutputFormat.mFramesPerPacket = 1; + theOutputFormat.mBytesPerFrame = 2 * theOutputFormat.mChannelsPerFrame; + theOutputFormat.mBitsPerChannel = 16; + theOutputFormat.mFormatFlags = kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked | kAudioFormatFlagIsSignedInteger; + + // Set the desired client (output) data format + status = ExtAudioFileSetProperty(extRef, kExtAudioFileProperty_ClientDataFormat, sizeof(theOutputFormat), &theOutputFormat); + if (status != noErr) + { + CDLOG(@"MyGetOpenALAudioData: ExtAudioFileSetProperty(kExtAudioFileProperty_ClientDataFormat) FAILED, Error = %ld\n", status); + abort = YES; + } + if (abort) + goto Exit; + + // Get the total frame count + thePropertySize = sizeof(theFileLengthInFrames); + status = ExtAudioFileGetProperty(extRef, kExtAudioFileProperty_FileLengthFrames, &thePropertySize, &theFileLengthInFrames); + if (status != noErr) + { + CDLOG(@"MyGetOpenALAudioData: ExtAudioFileGetProperty(kExtAudioFileProperty_FileLengthFrames) FAILED, Error = %ld\n", status); + abort = YES; + } + if (abort) + goto Exit; + + // Read all the data into memory + dataSize = (UInt32) theFileLengthInFrames * theOutputFormat.mBytesPerFrame; + theData = malloc(dataSize); + if (theData) + { + AudioBufferList theDataBuffer; + theDataBuffer.mNumberBuffers = 1; + theDataBuffer.mBuffers[0].mDataByteSize = dataSize; + theDataBuffer.mBuffers[0].mNumberChannels = theOutputFormat.mChannelsPerFrame; + theDataBuffer.mBuffers[0].mData = theData; + + // Read the data into an AudioBufferList + status = ExtAudioFileRead(extRef, (UInt32*)&theFileLengthInFrames, &theDataBuffer); + if(status == noErr) + { + // success + *outDataSize = (ALsizei)dataSize; + *outDataFormat = (theOutputFormat.mChannelsPerFrame > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16; + *outSampleRate = (ALsizei)theOutputFormat.mSampleRate; + } + else + { + // failure + free (theData); + theData = NULL; // make sure to return NULL + CDLOG(@"MyGetOpenALAudioData: ExtAudioFileRead FAILED, Error = %ld\n", status); + abort = YES; + } + } + if (abort) + goto Exit; + +Exit: + // Dispose the ExtAudioFileRef, it is no longer needed + if (extRef) ExtAudioFileDispose(extRef); + return theData; +} + +void* CDGetOpenALAudioData(CFURLRef inFileURL, ALsizei *outDataSize, ALenum *outDataFormat, ALsizei* outSampleRate) { + + CFStringRef extension = CFURLCopyPathExtension(inFileURL); + CFComparisonResult isWavFile = 0; + if (extension != NULL) { + isWavFile = CFStringCompare (extension,(CFStringRef)@"wav", kCFCompareCaseInsensitive); + CFRelease(extension); + } + + if (isWavFile == kCFCompareEqualTo) { + return CDloadWaveAudioData(inFileURL, outDataSize, outDataFormat, outSampleRate); + } else { + return CDloadCafAudioData(inFileURL, outDataSize, outDataFormat, outSampleRate); + } +} + -- cgit 1.4.1