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/* |
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libakai - C++ cross-platform akai sample disk reader |
3 |
Copyright (C) 2002-2003 Sébastien Métrot |
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|
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Linux port by Christian Schoenebeck <cuse@users.sourceforge.net> 2003-2019 |
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|
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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|
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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|
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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// Akai.h |
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// Info for the akai disk & file format found here: |
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// http://www.abel.co.uk/~maxim/akai/akaiinfo.htm |
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// |
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#ifndef __akai_h__ |
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#define __akai_h__ |
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|
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// for use with autoconf |
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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|
33 |
#if !defined(_CARBON_) && !defined(__APPLE__) && !defined(WIN32) |
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# define LINUX 1 |
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#endif |
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|
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#include <stdint.h> |
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#include <string> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <iostream> |
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#include <list> |
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#include <fstream> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#ifndef _MSC_VER |
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# include <sys/fcntl.h> |
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#endif |
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#if defined(_CARBON_) || defined(__APPLE__) || LINUX |
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# include <sys/ioctl.h> |
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# include <unistd.h> |
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#elif defined(WIN32) |
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# include <windows.h> |
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typedef unsigned int uint; |
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#endif |
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#if LINUX |
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# include <linux/cdrom.h> |
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#endif |
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|
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typedef std::string String; |
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typedef std::streampos streampos; |
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|
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class AkaiVolume; |
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class AkaiPartition; |
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class AkaiDisk; |
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|
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|
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/* current state of the Akai stream */ |
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typedef enum { |
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akai_stream_ready = 0, |
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akai_stream_end_reached = 1, |
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akai_stream_closed = 2 |
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} akai_stream_state_t; |
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|
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/* stream position dependent to these relations */ |
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typedef enum { |
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akai_stream_start = 0, |
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akai_stream_curpos = 1, |
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akai_stream_end = 2 |
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} akai_stream_whence_t; |
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|
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|
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/* We need to cache IO access to reduce IO system calls which else would slow |
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down things tremendously. For that we differ between the following two |
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cache sizes: |
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|
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CD_FRAMESIZE for CDROM access |
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DISK_CLUSTER_SIZE for normal IO access (e.g. from hard disk) |
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|
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Not yet sure if these are the optimum sizes. |
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*/ |
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|
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#ifndef CD_FRAMESIZE |
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# define CD_FRAMESIZE 2048 /* frame size for Yellow Book, Form 1 */ |
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#endif |
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|
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#define DISK_CLUSTER_SIZE 61440 /* 60 kB */ |
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|
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typedef std::string String; |
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|
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/** @brief Accessing AKAI image either from file or a drive (i.e. CDROM). |
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* |
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* This class implements a hardware abstraction layer, providing an abstract |
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* streaming API to read from AKAI data images, no matter if the AKAI image is |
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* already available as image file or whether the respective hardware drive |
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* needs to be accessed directly (i.e. CDROM drive, ZIP drive). So the main task |
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* of this class is isolating operating system dependent file/hardware access. |
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*/ |
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class DiskImage |
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{ |
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public: |
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DiskImage(const char* path); ///< Open an image from a file. |
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DiskImage(int disk); ///< Open an image from a device number (0='a:', 1='b:', etc...). |
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|
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bool WriteImage(const char* path); ///< Extract Akai data track and write it into a regular file. |
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|
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virtual ~DiskImage(); |
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|
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virtual akai_stream_state_t GetState() const; |
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virtual int GetPos() const; |
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virtual int SetPos(int Where, akai_stream_whence_t Whence = akai_stream_start); |
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|
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virtual int Available (uint WordSize = 1); |
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virtual int Read (void* pData, uint WordCount, uint WordSize); ///< Returns number of successfully read words. |
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|
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void ReadInt8(uint8_t* pData, uint WordCount); |
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void ReadInt16(uint16_t* pData, uint WordCount); |
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void ReadInt32(uint32_t* pData, uint WordCount); |
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int ReadInt8(uint8_t* pData); ///< Returns number of successfully read 8 Bit words. |
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int ReadInt16(uint16_t* pData); ///< Returns number of successfully read 16 Bit words. |
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int ReadInt32(uint32_t* pData); ///< Returns number of successfully read 32 Bit words. |
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uint8_t ReadInt8(); |
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uint16_t ReadInt16(); |
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uint32_t ReadInt32(); |
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|
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|
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virtual uint GetError() const |
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{ |
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return 0; |
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} |
141 |
|
142 |
/*virtual const nglChar* GetErrorStr(uint err) const |
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{ |
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return _T("No Error"); |
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}*/ |
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|
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protected: |
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#ifdef WIN32 |
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HANDLE mFile; |
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#elif defined _CARBON_ || defined(__APPLE__) || LINUX |
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int mFile; |
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#endif |
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bool mRegularFile; |
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int mPos; |
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int mCluster; |
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int mClusterSize; |
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int mSize; /* in bytes */ |
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/* start and end of the data track we chose (if we're reading from CDROM) */ |
159 |
int mStartFrame; |
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int mEndFrame; |
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char* mpCache; |
162 |
|
163 |
void OpenStream(const char* path); |
164 |
inline void swapBytes_16(void* Word); |
165 |
inline void swapBytes_32(void* Word); |
166 |
|
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private: |
168 |
void Init(); |
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}; |
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|
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|
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class Resource |
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{ |
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public: |
175 |
Resource() |
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{ |
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mRefCount = 0; |
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} |
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virtual ~Resource() |
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{ |
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//NGL_ASSERT(mRefCount==0); |
182 |
} |
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uint Acquire() |
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{ |
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return mRefCount++; |
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} |
187 |
uint Release() |
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{ |
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uint res; |
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//NGL_ASSERT(mRefCount!=0); |
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mRefCount--; |
192 |
res = mRefCount; |
193 |
if (!mRefCount) |
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delete this; |
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return res; |
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} |
197 |
private: |
198 |
uint mRefCount; |
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}; |
200 |
|
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class AkaiDirEntry |
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{ |
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public: |
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String mName; |
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uint16_t mType; |
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int mSize; |
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uint16_t mStart; |
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int mIndex; |
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}; |
210 |
|
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// AkaiDiskElement: |
212 |
class AkaiDiskElement : public Resource |
213 |
{ |
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public: |
215 |
AkaiDiskElement(uint Offset = 0) |
216 |
{ |
217 |
mOffset = Offset; |
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} |
219 |
|
220 |
uint GetOffset() |
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{ |
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return mOffset; |
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} |
224 |
|
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protected: |
226 |
void SetOffset(uint Offset) |
227 |
{ |
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mOffset = Offset; |
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} |
230 |
|
231 |
void AkaiToAscii(char * buffer, int length); |
232 |
int ReadFAT(DiskImage* pDisk, AkaiPartition* pPartition, int block); |
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bool ReadDirEntry(DiskImage* pDisk, AkaiPartition* pPartition, AkaiDirEntry& rEntry, int block, int pos); |
234 |
private: |
235 |
uint mOffset; |
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}; |
237 |
|
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class AkaiSampleLoop |
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{ |
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public: |
241 |
// 4 unsigned Loop 1 marker |
242 |
uint32_t mMarker; |
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// 2 unsigned Loop 1 fine length (65536ths) |
244 |
uint16_t mFineLength; |
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// 4 unsigned Loop 1 coarse length (words) |
246 |
uint32_t mCoarseLength; |
247 |
// 2 unsigned Loop 1 time (msec. or 9999=infinite) |
248 |
uint16_t mTime; |
249 |
private: |
250 |
friend class AkaiSample; |
251 |
bool Load(DiskImage* pDisk); |
252 |
}; |
253 |
|
254 |
class AkaiSample : public AkaiDiskElement |
255 |
{ |
256 |
public: |
257 |
AkaiDirEntry GetDirEntry(); |
258 |
// Length Format Description |
259 |
// -------------------------------------------------------------- |
260 |
// 1 3 |
261 |
// 1 Not important: 0 for 22050Hz, 1 for 44100Hz |
262 |
// 1 unsigned MIDI root note (C3=60) |
263 |
uint8_t mMidiRootNote; |
264 |
// 12 AKAII Filename |
265 |
String mName; |
266 |
// 1 128 |
267 |
// 1 unsigned Number of active loops |
268 |
uint8_t mActiveLoops; |
269 |
// 1 unsigned char First active loop (0 for none) |
270 |
uint8_t mFirstActiveLoop; |
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// 1 0 |
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// 1 unsigned Loop mode: 0=in release 1=until release |
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// 2=none 3=play to end |
274 |
uint8_t mLoopMode; |
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// 1 signed Cents tune -50...+50 |
276 |
int8_t mTuneCents; |
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// 1 signed Semi tune -50...+50 |
278 |
int8_t mTuneSemitones; |
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// 4 0,8,2,0 |
280 |
// |
281 |
// 4 unsigned Number of sample words |
282 |
uint32_t mNumberOfSamples; |
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// 4 unsigned Start marker |
284 |
uint32_t mStartMarker; |
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// 4 unsigned End marker |
286 |
uint32_t mEndMarker; |
287 |
// |
288 |
// 4 unsigned Loop 1 marker |
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// 2 unsigned Loop 1 fine length (65536ths) |
290 |
// 4 unsigned Loop 1 coarse length (words) |
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// 2 unsigned Loop 1 time (msec. or 9999=infinite) |
292 |
// |
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// 84 [as above] Loops 2 to 8 |
294 |
// |
295 |
AkaiSampleLoop mLoops[8]; |
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// 4 0,0,255,255 |
297 |
// 2 unsigned Sampling frequency |
298 |
uint16_t mSamplingFrequency; |
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// 1 signed char Loop tune offset -50...+50 |
300 |
int8_t mLoopTuneOffset; |
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// 10 0,0,0... |
302 |
|
303 |
int16_t* mpSamples; |
304 |
|
305 |
bool LoadSampleData(); ///< Load sample into RAM |
306 |
void ReleaseSampleData(); ///< release the samples once you used them if you don't want to be bothered to |
307 |
int SetPos(int Where, akai_stream_whence_t Whence = akai_stream_start); ///< Use this method and Read() if you don't want to load the sample into RAM, thus for disk streaming. |
308 |
int Read(void* pBuffer, uint SampleCount); ///< Use this method and SetPos() if you don't want to load the sample into RAM, thus for disk streaming. |
309 |
bool LoadHeader(); |
310 |
private: |
311 |
AkaiSample(DiskImage* pDisk, AkaiVolume* pParent, const AkaiDirEntry& DirEntry); |
312 |
virtual ~AkaiSample(); |
313 |
|
314 |
friend class AkaiVolume; |
315 |
|
316 |
AkaiVolume* mpParent; |
317 |
DiskImage* mpDisk; |
318 |
AkaiDirEntry mDirEntry; |
319 |
bool mHeaderOK; |
320 |
int mPos; |
321 |
int mImageOffset; // actual position in the image where sample starts |
322 |
}; |
323 |
|
324 |
class AkaiKeygroupSample : public AkaiDiskElement |
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{ |
326 |
public: |
327 |
// 35-46 sample 1 name 10,10,10... AKAII character set |
328 |
String mName; |
329 |
// 47 low vel 0 0..127 |
330 |
uint8_t mLowLevel; |
331 |
// 48 high vel 127 0..127 |
332 |
uint8_t mHighLevel; |
333 |
// 49 tune cents 0 -128..127 (-50..50 cents) |
334 |
int8_t mTuneCents; |
335 |
// 50 tune semitones 0 -50..50 |
336 |
int8_t mTuneSemitones; |
337 |
// 51 loudness 0 -50..+50 |
338 |
int8_t mLoudness; |
339 |
// 52 filter 0 -50..+50 |
340 |
int8_t mFilter; |
341 |
// 53 pan 0 -50..+50 |
342 |
int8_t mPan; |
343 |
// 54 loop mode 0 0=AS_SAMPLE 1=LOOP_IN_REL |
344 |
// 2=LOOP_UNTIL_REL 3=NO_LOOP |
345 |
// 4=PLAY_TO_END |
346 |
uint8_t mLoopMode; |
347 |
// 55 (internal use) 255 |
348 |
// 56 (internal use) 255 |
349 |
// 57-58 (internal use) 44,1 |
350 |
// |
351 |
private: |
352 |
friend class AkaiKeygroup; |
353 |
bool Load(DiskImage* pDisk); |
354 |
}; |
355 |
|
356 |
class AkaiEnveloppe |
357 |
{ |
358 |
public: |
359 |
// 13 env1 attack 0 0..99 |
360 |
uint8_t mAttack; |
361 |
// 14 env1 decay 30 0..99 |
362 |
uint8_t mDecay; |
363 |
// 15 env1 sustain 99 0..99 |
364 |
uint8_t mSustain; |
365 |
// 16 env1 release 45 0..99 |
366 |
uint8_t mRelease; |
367 |
// 17 env1 vel>attack 0 -50..50 |
368 |
int8_t mVelocityToAttack; |
369 |
// 18 env1 vel>release 0 -50..50 |
370 |
int8_t mVelocityToRelease; |
371 |
// 19 env1 offvel>release 0 -50..50 |
372 |
int8_t mOffVelocityToRelease; |
373 |
// 20 env1 key>dec&rel 0 -50..50 |
374 |
int8_t mKeyToDecayAndRelease; |
375 |
private: |
376 |
friend class AkaiKeygroup; |
377 |
bool Load(DiskImage* pDisk); |
378 |
}; |
379 |
|
380 |
class AkaiKeygroup |
381 |
{ |
382 |
public: |
383 |
// byte description default range/comments |
384 |
// --------------------------------------------------------------------------- |
385 |
// 1 keygroup ID 2 |
386 |
// 2-3 next keygroup address 44,1 300,450,600,750.. (16-bit) |
387 |
// 4 low key 24 24..127 |
388 |
uint8_t mLowKey; |
389 |
// 5 high key 127 24..127 |
390 |
uint8_t mHighKey; |
391 |
// 6 tune cents 0 -128..127 (-50..50 cents) |
392 |
int8_t mTuneCents; |
393 |
// 7 tune semitones 0 -50..50 |
394 |
int8_t mTuneSemitones; |
395 |
// 8 filter 99 0..99 |
396 |
uint8_t mFilter; |
397 |
// 9 key>filter 12 0..24 semitone/oct |
398 |
uint8_t mKeyToFilter; |
399 |
// 10 vel>filt 0 -50..50 |
400 |
uint8_t mVelocityToFilter; |
401 |
// 11 pres>filt 0 -50..50 |
402 |
uint8_t mPressureToFilter; |
403 |
// 12 env2>filt 0 -50..50 |
404 |
uint8_t mEnveloppe2ToFilter; |
405 |
|
406 |
// 13 env1 attack 0 0..99 |
407 |
// 14 env1 decay 30 0..99 |
408 |
// 15 env1 sustain 99 0..99 |
409 |
// 16 env1 release 45 0..99 |
410 |
// 17 env1 vel>attack 0 -50..50 |
411 |
// 18 env1 vel>release 0 -50..50 |
412 |
// 19 env1 offvel>release 0 -50..50 |
413 |
// 20 env1 key>dec&rel 0 -50..50 |
414 |
// 21 env2 attack 0 0..99 |
415 |
// 22 env2 decay 50 0..99 |
416 |
// 23 env2 sustain 99 0..99 |
417 |
// 24 env2 release 45 0..99 |
418 |
// 25 env2 vel>attack 0 -50..50 |
419 |
// 26 env2 vel>release 0 -50..50 |
420 |
// 27 env2 offvel>release 0 -50..50 |
421 |
// 28 env2 key>dec&rel 0 -50..50 |
422 |
AkaiEnveloppe mEnveloppes[2]; |
423 |
|
424 |
// 29 vel>env2>filter 0 -50..50 |
425 |
int8_t mVelocityToEnveloppe2ToFilter; |
426 |
// 30 env2>pitch 0 -50..50 |
427 |
int8_t mEnveloppe2ToPitch; |
428 |
// 31 vel zone crossfade 1 0=OFF 1=ON |
429 |
bool mVelocityZoneCrossfade; |
430 |
// 32 vel zones used 4 |
431 |
uint mVelocityZoneUsed; |
432 |
// 33 (internal use) 255 |
433 |
// 34 (internal use) 255 |
434 |
// |
435 |
|
436 |
// 35-46 sample 1 name 10,10,10... AKAII character set |
437 |
// 47 low vel 0 0..127 |
438 |
// 48 high vel 127 0..127 |
439 |
// 49 tune cents 0 -128..127 (-50..50 cents) |
440 |
// 50 tune semitones 0 -50..50 |
441 |
// 51 loudness 0 -50..+50 |
442 |
// 52 filter 0 -50..+50 |
443 |
// 53 pan 0 -50..+50 |
444 |
// 54 loop mode 0 0=AS_SAMPLE 1=LOOP_IN_REL |
445 |
// 2=LOOP_UNTIL_REL 3=NO_LOOP |
446 |
// 4=PLAY_TO_END |
447 |
// 55 (internal use) 255 |
448 |
// 56 (internal use) 255 |
449 |
// 57-58 (internal use) 44,1 |
450 |
// |
451 |
// 59-82 [repeat 35-58 for sample 2] |
452 |
// |
453 |
// 83-106 [repeat 35-58 for sample 3] |
454 |
// |
455 |
// 107-130 [repeat 35-58 for sample 4] |
456 |
// |
457 |
AkaiKeygroupSample mSamples[4]; |
458 |
|
459 |
// 131 beat detune 0 -50..50 |
460 |
int8_t mBeatDetune; |
461 |
// 132 hold attack until loop 0 0=OFF 1=ON |
462 |
bool mHoldAttackUntilLoop; |
463 |
// 133-136 sample 1-4 key tracking 0 0=TRACK 1=FIXED |
464 |
bool mSampleKeyTracking[4]; |
465 |
// 137-140 sample 1-4 aux out offset 0 0..7 |
466 |
uint8_t mSampleAuxOutOffset[4]; |
467 |
// 141-148 vel>sample start 0 -9999..9999 (16-bit signed) |
468 |
int16_t mVelocityToSampleStart[4]; |
469 |
// 149 vel>volume offset 0 -50..50 |
470 |
int8_t mVelocityToVolumeOffset[4]; |
471 |
// 150 (not used) |
472 |
|
473 |
private: |
474 |
friend class AkaiProgram; |
475 |
bool Load(DiskImage* pDisk); |
476 |
}; |
477 |
|
478 |
/** @brief AKAI instrument definition |
479 |
* |
480 |
* Represents exactly one sample based instrument on the AKAI media. |
481 |
*/ |
482 |
class AkaiProgram : public AkaiDiskElement |
483 |
{ |
484 |
public: |
485 |
AkaiDirEntry GetDirEntry(); |
486 |
// Samples: |
487 |
uint ListSamples(std::list<String>& rSamples); |
488 |
AkaiSample* GetSample(uint Index); |
489 |
AkaiSample* GetSample(const String& rName); |
490 |
|
491 |
// byte description default range/comments |
492 |
// --------------------------------------------------------------------------- |
493 |
// 1 program ID 1 |
494 |
// 2-3 first keygroup address 150,0 |
495 |
// 4-15 program name 10,10,10... AKAII character set |
496 |
String mName; |
497 |
// 16 MIDI program number 0 0..127 |
498 |
uint8_t mMidiProgramNumber; |
499 |
// 17 MIDI channel 0 0..15, 255=OMNI |
500 |
uint8_t mMidiChannel; |
501 |
// 18 polyphony 15 1..16 |
502 |
uint8_t mPolyphony; |
503 |
// 19 priority 1 0=LOW 1=NORM 2=HIGH 3=HOLD |
504 |
uint8_t mPriority; |
505 |
// 20 low key 24 24..127 |
506 |
uint8_t mLowKey; |
507 |
// 21 high key 127 24..127 |
508 |
uint8_t mHighKey; |
509 |
// 22 octave shift 0 -2..2 |
510 |
int8_t mOctaveShift; |
511 |
// 23 aux output select 255 0..7, 255=OFF |
512 |
uint8_t mAuxOutputSelect; |
513 |
// 24 mix output level 99 0..99 |
514 |
uint8_t mMixOutputSelect; |
515 |
// 25 mix output pan 0 -50..50 |
516 |
int8_t mMixPan; |
517 |
// 26 volume 80 0..99 |
518 |
uint8_t mVolume; |
519 |
// 27 vel>volume 20 -50..50 |
520 |
int8_t mVelocityToVolume; |
521 |
// 28 key>volume 0 -50..50 |
522 |
int8_t mKeyToVolume; |
523 |
// 29 pres>volume 0 -50..50 |
524 |
int8_t mPressureToVolume; |
525 |
// 30 pan lfo rate 50 0..99 |
526 |
uint8_t mPanLFORate; |
527 |
// 31 pan lfo depth 0 0..99 |
528 |
uint8_t mPanLFODepth; |
529 |
// 32 pan lfo delay 0 0..99 |
530 |
uint8_t mPanLFODelay; |
531 |
// 33 key>pan 0 -50..50 |
532 |
int8_t mKeyToPan; |
533 |
// 34 lfo rate 50 0..99 |
534 |
uint8_t mLFORate; |
535 |
// 35 lfo depth 0 0..99 |
536 |
uint8_t mLFODepth; |
537 |
// 36 lfo delay 0 0..99 |
538 |
uint8_t mLFODelay; |
539 |
// 37 mod>lfo depth 30 0..99 |
540 |
uint8_t mModulationToLFODepth; |
541 |
// 38 pres>lfo depth 0 0..99 |
542 |
uint8_t mPressureToLFODepth; |
543 |
// 39 vel>lfo depth 0 0..99 |
544 |
uint8_t mVelocityToLFODepth; |
545 |
// 40 bend>pitch 2 0..12 semitones |
546 |
uint8_t mBendToPitch; |
547 |
// 41 pres>pitch 0 -12..12 semitones |
548 |
int8_t mPressureToPitch; |
549 |
// 42 keygroup crossfade 0 0=OFF 1=ON |
550 |
bool mKeygroupCrossfade; |
551 |
// 43 number of keygroups 1 1..99 |
552 |
uint8_t mNumberOfKeygroups; |
553 |
// 44 (internal use) 0 program number |
554 |
// 45-56 key temperament C,C#,D... 0 -25..25 cents |
555 |
int8_t mKeyTemperament[11]; |
556 |
// 57 fx output 0 0=OFF 1=ON |
557 |
bool mFXOutput; |
558 |
// 58 mod>pan 0 -50..50 |
559 |
int8_t mModulationToPan; |
560 |
// 59 stereo coherence 0 0=OFF 1=ON |
561 |
bool mStereoCoherence; |
562 |
// 60 lfo desync 1 0=OFF 1=ON |
563 |
bool mLFODesync; |
564 |
// 61 pitch law 0 0=LINEAR |
565 |
uint8_t mPitchLaw; |
566 |
// 62 voice re-assign 0 0=OLDEST 1=QUIETEST |
567 |
uint8_t mVoiceReassign; |
568 |
// 63 softped>volume 10 0..99 |
569 |
uint8_t mSoftpedToVolume; |
570 |
// 64 softped>attack 10 0..99 |
571 |
uint8_t mSoftpedToAttack; |
572 |
// 65 softped>filt 10 0..99 |
573 |
uint8_t mSoftpedToFilter; |
574 |
// 66 tune cents 0 -128..127 (-50..50 cents) |
575 |
int8_t mSoftpedToTuneCents; |
576 |
// 67 tune semitones 0 -50..50 |
577 |
int8_t mSoftpedToTuneSemitones; |
578 |
// 68 key>lfo rate 0 -50..50 |
579 |
int8_t mKeyToLFORate; |
580 |
// 69 key>lfo depth 0 -50..50 |
581 |
int8_t mKeyToLFODepth; |
582 |
// 70 key>lfo delay 0 -50..50 |
583 |
int8_t mKeyToLFODelay; |
584 |
// 71 voice output scale 1 0=-6dB 1=0dB 2=+12dB |
585 |
uint8_t mVoiceOutputScale; |
586 |
// 72 stereo output scale 0 0=0dB 1=+6dB |
587 |
uint8_t mStereoOutputScale; |
588 |
// 73-150 (not used) |
589 |
|
590 |
AkaiKeygroup* mpKeygroups; |
591 |
|
592 |
bool Load(); |
593 |
AkaiVolume* GetParent() |
594 |
{ |
595 |
return mpParent; |
596 |
} |
597 |
|
598 |
private: |
599 |
AkaiProgram(DiskImage* pDisk, AkaiVolume* pParent, const AkaiDirEntry& DirEntry); |
600 |
virtual ~AkaiProgram(); |
601 |
|
602 |
friend class AkaiVolume; |
603 |
|
604 |
std::list<AkaiSample*> mpSamples; |
605 |
AkaiVolume* mpParent; |
606 |
DiskImage* mpDisk; |
607 |
AkaiDirEntry mDirEntry; |
608 |
}; |
609 |
|
610 |
/** @brief Subdivision of an AKAI disk partition. |
611 |
* |
612 |
* An AKAI volume is a further subdivision of an AKAI disk partition. |
613 |
* |
614 |
* An AKAI volume actually provides access to the list of instruments (programs) |
615 |
* and samples. Samples referenced by an instrument (program) are always part of |
616 |
* the same volume. |
617 |
*/ |
618 |
class AkaiVolume : public AkaiDiskElement |
619 |
{ |
620 |
public: |
621 |
AkaiDirEntry GetDirEntry(); |
622 |
// Programs: |
623 |
uint ListPrograms(std::list<AkaiDirEntry>& rPrograms); |
624 |
AkaiProgram* GetProgram(uint Index); |
625 |
AkaiProgram* GetProgram(const String& rName); |
626 |
|
627 |
// Samples: |
628 |
uint ListSamples(std::list<AkaiDirEntry>& rSamples); |
629 |
AkaiSample* GetSample(uint Index); |
630 |
AkaiSample* GetSample(const String& rName); |
631 |
|
632 |
AkaiPartition* GetParent() |
633 |
{ |
634 |
return mpParent; |
635 |
} |
636 |
|
637 |
bool IsEmpty(); |
638 |
private: |
639 |
AkaiVolume(DiskImage* pDisk, AkaiPartition* pParent, const AkaiDirEntry& DirEntry); |
640 |
virtual ~AkaiVolume(); |
641 |
uint ReadDir(); |
642 |
|
643 |
friend class AkaiPartition; |
644 |
|
645 |
String mName; |
646 |
std::list<AkaiProgram*> mpPrograms; |
647 |
std::list<AkaiSample*> mpSamples; |
648 |
DiskImage* mpDisk; |
649 |
AkaiPartition* mpParent; |
650 |
AkaiDirEntry mDirEntry; |
651 |
}; |
652 |
|
653 |
/** @brief Encapsulates one disk partition of an AKAI disk. |
654 |
* |
655 |
* An object of this class represents exactly one disk partition of an AKAI disk |
656 |
* media or of an AKAI disk image file. This is similar to a hard disk partition |
657 |
* on other operating systems, just in AKAI's own custom format. |
658 |
* |
659 |
* Each AKAI disk partition is further subdivided into so called "volumes". |
660 |
*/ |
661 |
class AkaiPartition : public AkaiDiskElement |
662 |
{ |
663 |
public: |
664 |
// Samples: |
665 |
uint ListVolumes(std::list<AkaiDirEntry>& rVolumes); |
666 |
AkaiVolume* GetVolume(uint Index); |
667 |
AkaiVolume* GetVolume(const String& rName); |
668 |
|
669 |
AkaiDisk* GetParent() |
670 |
{ |
671 |
return mpParent; |
672 |
} |
673 |
|
674 |
bool IsEmpty(); |
675 |
private: |
676 |
AkaiPartition(DiskImage* pDisk, AkaiDisk* pParent); |
677 |
virtual ~AkaiPartition(); |
678 |
|
679 |
friend class AkaiDisk; |
680 |
|
681 |
String mName; |
682 |
std::list<AkaiVolume*> mpVolumes; |
683 |
AkaiDisk* mpParent; |
684 |
DiskImage* mpDisk; |
685 |
}; |
686 |
|
687 |
/** @brief Toplevel AKAI image interpreter. |
688 |
* |
689 |
* This class takes an AKAI disk image as constructor argument and provides |
690 |
* access to the individual partitions of that AKAI disk/image. The concept is |
691 |
* similar to hard disc layout for other operating systems, which are also |
692 |
* divided into individual partitions as topmost instance on the mass data |
693 |
* media. |
694 |
*/ |
695 |
class AkaiDisk : public AkaiDiskElement |
696 |
{ |
697 |
public: |
698 |
AkaiDisk(DiskImage* pDisk); |
699 |
virtual ~AkaiDisk(); |
700 |
|
701 |
// Partitions: |
702 |
uint GetPartitionCount(); |
703 |
AkaiPartition* GetPartition(uint count); |
704 |
|
705 |
private: |
706 |
DiskImage* mpDisk; |
707 |
std::list<AkaiPartition*> mpPartitions; |
708 |
}; |
709 |
|
710 |
#define AKAI_FILE_ENTRY_SIZE 24 |
711 |
#define AKAI_DIR_ENTRY_OFFSET 0xca |
712 |
#define AKAI_DIR_ENTRY_SIZE 16 |
713 |
#define AKAI_ROOT_ENTRY_OFFSET 0x0 |
714 |
|
715 |
#define AKAI_PARTITION_END_MARK 0x8000 |
716 |
#define AKAI_BLOCK_SIZE 0x2000 |
717 |
|
718 |
#define AKAI_FAT_OFFSET 0x70a |
719 |
|
720 |
#define AKAI_MAX_FILE_ENTRIES_S1000 125 //should be 128 ?? |
721 |
#define AKAI_MAX_FILE_ENTRIES_S3000 509 // should be 512 ?? |
722 |
#define AKAI_MAX_DIR_ENTRIES 100 |
723 |
#define AKAI_TYPE_DIR_S1000 1 |
724 |
#define AKAI_TYPE_DIR_S3000 3 |
725 |
|
726 |
#define AKAI_PROGRAM_ID 1 |
727 |
#define AKAI_KEYGROUP_ID 2 |
728 |
#define AKAI_SAMPLE_ID 3 |
729 |
|
730 |
#endif // __akai_h__ |