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Diffstat (limited to 'distrib/sdl-1.2.15/src/cdrom/macosx/AudioFilePlayer.h')
| -rw-r--r-- | distrib/sdl-1.2.15/src/cdrom/macosx/AudioFilePlayer.h | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/cdrom/macosx/AudioFilePlayer.h b/distrib/sdl-1.2.15/src/cdrom/macosx/AudioFilePlayer.h new file mode 100644 index 0000000..886d017 --- /dev/null +++ b/distrib/sdl-1.2.15/src/cdrom/macosx/AudioFilePlayer.h @@ -0,0 +1,178 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2012 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with this library; if not, write to the Free + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Sam Lantinga + slouken@libsdl.org + + This file based on Apple sample code. We haven't changed the file name, + so if you want to see the original search for it on apple.com/developer +*/ +#include "SDL_config.h" + +/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + AudioFilePlayer.h +*/ +#ifndef __AudioFilePlayer_H__ +#define __AudioFilePlayer_H__ + +#include <CoreServices/CoreServices.h> + +#include <AudioUnit/AudioUnit.h> +#if MAC_OS_X_VERSION_MAX_ALLOWED <= 1050 +#include <AudioUnit/AUNTComponent.h> +#endif + +#if (MAC_OS_X_VERSION_MAX_ALLOWED < 1050) +typedef SInt16 FSIORefNum; +#endif + +#include "SDL_error.h" + +const char* AudioFilePlayerErrorStr (OSStatus error); + +/* +void ThrowResult (OSStatus result, const char *str); + +#define THROW_RESULT(str) \ + if (result) { \ + ThrowResult (result, str); \ + } +*/ + +typedef void (*AudioFilePlayNotifier)(void *inRefCon, + OSStatus inStatus); + +enum { + kAudioFilePlayErr_FilePlayUnderrun = -10000, + kAudioFilePlay_FileIsFinished = -10001, + kAudioFilePlay_PlayerIsUninitialized = -10002 +}; + + +struct S_AudioFileManager; + +#pragma mark __________ AudioFilePlayer +typedef struct S_AudioFilePlayer +{ +/*public:*/ + int (*SetDestination)(struct S_AudioFilePlayer *afp, AudioUnit *inDestUnit); + void (*SetNotifier)(struct S_AudioFilePlayer *afp, AudioFilePlayNotifier inNotifier, void *inRefCon); + void (*SetStartFrame)(struct S_AudioFilePlayer *afp, int frame); /* seek in the file */ + int (*GetCurrentFrame)(struct S_AudioFilePlayer *afp); /* get the current frame position */ + void (*SetStopFrame)(struct S_AudioFilePlayer *afp, int frame); /* set limit in the file */ + int (*Connect)(struct S_AudioFilePlayer *afp); + void (*Disconnect)(struct S_AudioFilePlayer *afp); + void (*DoNotification)(struct S_AudioFilePlayer *afp, OSStatus inError); + int (*IsConnected)(struct S_AudioFilePlayer *afp); + AudioUnit (*GetDestUnit)(struct S_AudioFilePlayer *afp); + void (*Print)(struct S_AudioFilePlayer *afp); + +/*private:*/ + AudioUnit mPlayUnit; + FSIORefNum mForkRefNum; + + AURenderCallbackStruct mInputCallback; + + AudioStreamBasicDescription mFileDescription; + + int mConnected; + + struct S_AudioFileManager* mAudioFileManager; + + AudioFilePlayNotifier mNotifier; + void* mRefCon; + + int mStartFrame; + +#pragma mark __________ Private_Methods + + int (*OpenFile)(struct S_AudioFilePlayer *afp, const FSRef *inRef, SInt64 *outFileSize); +} AudioFilePlayer; + + +AudioFilePlayer *new_AudioFilePlayer(const FSRef *inFileRef); +void delete_AudioFilePlayer(AudioFilePlayer *afp); + + + +#pragma mark __________ AudioFileManager +typedef struct S_AudioFileManager +{ +/*public:*/ + /* this method should NOT be called by an object of this class + as it is called by the parent's Disconnect() method */ + void (*Disconnect)(struct S_AudioFileManager *afm); + int (*DoConnect)(struct S_AudioFileManager *afm); + OSStatus (*Read)(struct S_AudioFileManager *afm, char *buffer, ByteCount *len); + const char* (*GetFileBuffer)(struct S_AudioFileManager *afm); + const AudioFilePlayer *(*GetParent)(struct S_AudioFileManager *afm); + void (*SetPosition)(struct S_AudioFileManager *afm, SInt64 pos); /* seek/rewind in the file */ + int (*GetByteCounter)(struct S_AudioFileManager *afm); /* return actual bytes streamed to audio hardware */ + void (*SetEndOfFile)(struct S_AudioFileManager *afm, SInt64 pos); /* set the "EOF" (will behave just like it reached eof) */ + +/*protected:*/ + AudioFilePlayer* mParent; + SInt16 mForkRefNum; + SInt64 mAudioDataOffset; + + char* mFileBuffer; + + int mByteCounter; + + int mReadFromFirstBuffer; + int mLockUnsuccessful; + int mIsEngaged; + + int mNumTimesAskedSinceFinished; + + + void* mTmpBuffer; + UInt32 mBufferSize; + UInt32 mBufferOffset; +/*public:*/ + UInt32 mChunkSize; + SInt64 mFileLength; + SInt64 mReadFilePosition; + int mWriteToFirstBuffer; + int mFinishedReadingData; + +/*protected:*/ + OSStatus (*Render)(struct S_AudioFileManager *afm, AudioBufferList *ioData); + OSStatus (*GetFileData)(struct S_AudioFileManager *afm, void** inOutData, UInt32 *inOutDataSize); + void (*AfterRender)(struct S_AudioFileManager *afm); + +/*public:*/ + /*static*/ + OSStatus (*FileInputProc)(void *inRefCon, + AudioUnitRenderActionFlags *ioActionFlags, + const AudioTimeStamp *inTimeStamp, + UInt32 inBusNumber, + UInt32 inNumberFrames, + AudioBufferList *ioData); +} AudioFileManager; + + +AudioFileManager *new_AudioFileManager (AudioFilePlayer *inParent, + SInt16 inForkRefNum, + SInt64 inFileLength, + UInt32 inChunkSize); + +void delete_AudioFileManager(AudioFileManager *afm); + +#endif + |