mirror of https://github.com/axmolengine/axmol.git
249 lines
11 KiB
Objective-C
249 lines
11 KiB
Objective-C
/*
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Disclaimer: IMPORTANT: This Apple software is supplied to you by
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Apple Inc. ("Apple") in consideration of your agreement to the
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following terms, and your use, installation, modification or
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redistribution of this Apple software constitutes acceptance of these
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terms. If you do not agree with these terms, please do not use,
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install, modify or redistribute this Apple software.
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In consideration of your agreement to abide by the following terms, and
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subject to these terms, Apple grants you a personal, non-exclusive
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license, under Apple's copyrights in this original Apple software (the
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"Apple Software"), to use, reproduce, modify and redistribute the Apple
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Software, with or without modifications, in source and/or binary forms;
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provided that if you redistribute the Apple Software in its entirety and
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without modifications, you must retain this notice and the following
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text and disclaimers in all such redistributions of the Apple Software.
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Neither the name, trademarks, service marks or logos of Apple Inc.
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may be used to endorse or promote products derived from the Apple
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Software without specific prior written permission from Apple. Except
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as expressly stated in this notice, no other rights or licenses, express
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or implied, are granted by Apple herein, including but not limited to
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any patent rights that may be infringed by your derivative works or by
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other works in which the Apple Software may be incorporated.
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE
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MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
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THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
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FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
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OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
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IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION,
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MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED
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AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
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STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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Copyright (C) 2009 Apple Inc. All Rights Reserved.
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$Id: CDOpenALSupport.h 16 2010-03-11 06:22:10Z steveoldmeadow $
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*/
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#import "CDOpenALSupport.h"
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#import "CocosDenshion.h"
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#import <AudioToolbox/AudioToolbox.h>
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#import <AudioToolbox/ExtendedAudioFile.h>
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//Taken from oalTouch MyOpenALSupport 1.1
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void* CDloadWaveAudioData(CFURLRef inFileURL, ALsizei *outDataSize, ALenum *outDataFormat, ALsizei* outSampleRate)
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{
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OSStatus err = noErr;
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UInt64 fileDataSize = 0;
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AudioStreamBasicDescription theFileFormat;
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UInt32 thePropertySize = sizeof(theFileFormat);
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AudioFileID afid = 0;
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void* theData = NULL;
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// Open a file with ExtAudioFileOpen()
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err = AudioFileOpenURL(inFileURL, kAudioFileReadPermission, 0, &afid);
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if(err) { CDLOG(@"MyGetOpenALAudioData: AudioFileOpenURL FAILED, Error = %ld\n", err); goto Exit; }
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// Get the audio data format
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err = AudioFileGetProperty(afid, kAudioFilePropertyDataFormat, &thePropertySize, &theFileFormat);
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if(err) { CDLOG(@"MyGetOpenALAudioData: AudioFileGetProperty(kAudioFileProperty_DataFormat) FAILED, Error = %ld\n", err); goto Exit; }
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if (theFileFormat.mChannelsPerFrame > 2) {
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CDLOG(@"MyGetOpenALAudioData - Unsupported Format, channel count is greater than stereo\n"); goto Exit;
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}
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if ((theFileFormat.mFormatID != kAudioFormatLinearPCM) || (!TestAudioFormatNativeEndian(theFileFormat))) {
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CDLOG(@"MyGetOpenALAudioData - Unsupported Format, must be little-endian PCM\n"); goto Exit;
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}
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if ((theFileFormat.mBitsPerChannel != 8) && (theFileFormat.mBitsPerChannel != 16)) {
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CDLOG(@"MyGetOpenALAudioData - Unsupported Format, must be 8 or 16 bit PCM\n"); goto Exit;
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}
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thePropertySize = sizeof(fileDataSize);
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err = AudioFileGetProperty(afid, kAudioFilePropertyAudioDataByteCount, &thePropertySize, &fileDataSize);
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if(err) { CDLOG(@"MyGetOpenALAudioData: AudioFileGetProperty(kAudioFilePropertyAudioDataByteCount) FAILED, Error = %ld\n", err); goto Exit; }
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// Read all the data into memory
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UInt32 dataSize = (UInt32)fileDataSize;
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theData = malloc(dataSize);
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if (theData)
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{
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memset(theData, 0, dataSize);
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AudioFileReadBytes(afid, false, 0, &dataSize, theData);
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if(err == noErr)
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{
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// success
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*outDataSize = (ALsizei)dataSize;
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//This fix was added by me, however, 8 bit sounds have a clipping sound at the end so aren't really usable (SO)
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if (theFileFormat.mBitsPerChannel == 16) {
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*outDataFormat = (theFileFormat.mChannelsPerFrame > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16;
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} else {
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*outDataFormat = (theFileFormat.mChannelsPerFrame > 1) ? AL_FORMAT_STEREO8 : AL_FORMAT_MONO8;
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}
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*outSampleRate = (ALsizei)theFileFormat.mSampleRate;
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}
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else
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{
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// failure
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free (theData);
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theData = NULL; // make sure to return NULL
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CDLOG(@"MyGetOpenALAudioData: ExtAudioFileRead FAILED, Error = %ld\n", err); goto Exit;
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}
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}
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Exit:
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// Dispose the ExtAudioFileRef, it is no longer needed
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if (afid) AudioFileClose(afid);
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return theData;
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}
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//Taken from oalTouch MyOpenALSupport 1.4
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void* CDloadCafAudioData(CFURLRef inFileURL, ALsizei *outDataSize, ALenum *outDataFormat, ALsizei* outSampleRate)
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{
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OSStatus status = noErr;
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BOOL abort = NO;
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SInt64 theFileLengthInFrames = 0;
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AudioStreamBasicDescription theFileFormat;
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UInt32 thePropertySize = sizeof(theFileFormat);
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ExtAudioFileRef extRef = NULL;
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void* theData = NULL;
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AudioStreamBasicDescription theOutputFormat;
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UInt32 dataSize = 0;
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// Open a file with ExtAudioFileOpen()
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status = ExtAudioFileOpenURL(inFileURL, &extRef);
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if (status != noErr)
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{
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CDLOG(@"MyGetOpenALAudioData: ExtAudioFileOpenURL FAILED, Error = %ld\n", status);
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abort = YES;
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}
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if (abort)
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goto Exit;
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// Get the audio data format
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status = ExtAudioFileGetProperty(extRef, kExtAudioFileProperty_FileDataFormat, &thePropertySize, &theFileFormat);
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if (status != noErr)
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{
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CDLOG(@"MyGetOpenALAudioData: ExtAudioFileGetProperty(kExtAudioFileProperty_FileDataFormat) FAILED, Error = %ld\n", status);
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abort = YES;
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}
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if (abort)
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goto Exit;
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if (theFileFormat.mChannelsPerFrame > 2)
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{
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CDLOG(@"MyGetOpenALAudioData - Unsupported Format, channel count is greater than stereo\n");
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abort = YES;
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}
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if (abort)
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goto Exit;
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// Set the client format to 16 bit signed integer (native-endian) data
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// Maintain the channel count and sample rate of the original source format
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theOutputFormat.mSampleRate = theFileFormat.mSampleRate;
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theOutputFormat.mChannelsPerFrame = theFileFormat.mChannelsPerFrame;
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theOutputFormat.mFormatID = kAudioFormatLinearPCM;
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theOutputFormat.mBytesPerPacket = 2 * theOutputFormat.mChannelsPerFrame;
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theOutputFormat.mFramesPerPacket = 1;
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theOutputFormat.mBytesPerFrame = 2 * theOutputFormat.mChannelsPerFrame;
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theOutputFormat.mBitsPerChannel = 16;
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theOutputFormat.mFormatFlags = kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked | kAudioFormatFlagIsSignedInteger;
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// Set the desired client (output) data format
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status = ExtAudioFileSetProperty(extRef, kExtAudioFileProperty_ClientDataFormat, sizeof(theOutputFormat), &theOutputFormat);
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if (status != noErr)
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{
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CDLOG(@"MyGetOpenALAudioData: ExtAudioFileSetProperty(kExtAudioFileProperty_ClientDataFormat) FAILED, Error = %ld\n", status);
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abort = YES;
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}
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if (abort)
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goto Exit;
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// Get the total frame count
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thePropertySize = sizeof(theFileLengthInFrames);
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status = ExtAudioFileGetProperty(extRef, kExtAudioFileProperty_FileLengthFrames, &thePropertySize, &theFileLengthInFrames);
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if (status != noErr)
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{
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CDLOG(@"MyGetOpenALAudioData: ExtAudioFileGetProperty(kExtAudioFileProperty_FileLengthFrames) FAILED, Error = %ld\n", status);
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abort = YES;
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}
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if (abort)
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goto Exit;
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// Read all the data into memory
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dataSize = (UInt32) theFileLengthInFrames * theOutputFormat.mBytesPerFrame;
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theData = malloc(dataSize);
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if (theData)
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{
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memset(theData, 0, dataSize);
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AudioBufferList theDataBuffer;
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theDataBuffer.mNumberBuffers = 1;
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theDataBuffer.mBuffers[0].mDataByteSize = dataSize;
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theDataBuffer.mBuffers[0].mNumberChannels = theOutputFormat.mChannelsPerFrame;
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theDataBuffer.mBuffers[0].mData = theData;
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// Read the data into an AudioBufferList
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status = ExtAudioFileRead(extRef, (UInt32*)&theFileLengthInFrames, &theDataBuffer);
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if(status == noErr)
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{
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// success
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*outDataSize = (ALsizei)dataSize;
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*outDataFormat = (theOutputFormat.mChannelsPerFrame > 1) ? AL_FORMAT_STEREO16 : AL_FORMAT_MONO16;
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*outSampleRate = (ALsizei)theOutputFormat.mSampleRate;
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}
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else
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{
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// failure
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free (theData);
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theData = NULL; // make sure to return NULL
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CDLOG(@"MyGetOpenALAudioData: ExtAudioFileRead FAILED, Error = %ld\n", status);
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abort = YES;
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}
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}
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if (abort)
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goto Exit;
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Exit:
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// Dispose the ExtAudioFileRef, it is no longer needed
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if (extRef) ExtAudioFileDispose(extRef);
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return theData;
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}
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void* CDGetOpenALAudioData(CFURLRef inFileURL, ALsizei *outDataSize, ALenum *outDataFormat, ALsizei* outSampleRate) {
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CFStringRef extension = CFURLCopyPathExtension(inFileURL);
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CFComparisonResult isWavFile = 0;
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if (extension != NULL) {
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isWavFile = CFStringCompare (extension,(CFStringRef)@"wav", kCFCompareCaseInsensitive);
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CFRelease(extension);
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}
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if (isWavFile == kCFCompareEqualTo) {
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return CDloadWaveAudioData(inFileURL, outDataSize, outDataFormat, outSampleRate);
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} else {
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return CDloadCafAudioData(inFileURL, outDataSize, outDataFormat, outSampleRate);
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}
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}
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