/* EightyOne - A Windows ZX80/81/clone emulator. * Copyright (C) 2003-2006 Michael D Wynne * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * tzxfile.h * */ //--------------------------------------------------------------------------- #ifndef tzxfileH #define tzxfileH //--------------------------------------------------------------------------- #include #include "zx81config.h" #define TZX_MAX_BLOCKS 2000 #define TZXSCALE(x) (((float)x)/(((float)3500000)/((float)machine.clockspeed))) //#define TZXSCALE(x) (x) #define TZX_BLOCK_ROM 0x10 #define TZX_BLOCK_TURBO 0x11 #define TZX_BLOCK_TONE 0x12 #define TZX_BLOCK_PULSE 0x13 #define TZX_BLOCK_DATA 0x14 #define TZX_BLOCK_DREC 0x15 #define TZX_BLOCK_CSW 0x18 #define TZX_BLOCK_GENERAL 0x19 #define TZX_BLOCK_PAUSE 0x20 #define TZX_BLOCK_GSTART 0x21 #define TZX_BLOCK_GEND 0x22 #define TZX_BLOCK_JUMP 0x23 #define TZX_BLOCK_LSTART 0x24 #define TZX_BLOCK_LEND 0x25 #define TZX_BLOCK_SBLOCK 0x28 #define TZX_BLOCK_STOP48K 0x2a #define TZX_BLOCK_SETLEVEL 0x2b #define TZX_BLOCK_TEXT 0x30 #define TZX_BLOCK_MESSAGE 0x31 #define TZX_BLOCK_ARCHIVE 0x32 #define TZX_BLOCK_HWTYPE 0x33 #define TZX_BLOCK_CUSTOM 0x35 #define TZX_BLOCK_GLUE 0x5a #define T81_HEADER_ID "EO81" #define TZX_BYTE_EMPTY -1 extern "C" int TZXByte; extern "C" int TZXEventCounter; struct TZXHeader { char id[8]; char major; char minor; }; struct TZXUnknown { unsigned char type; int length; }; struct TZXROM { unsigned short DataLen; }; struct TZXTurbo { unsigned short PilotLen; unsigned short Sync1Len; unsigned short Sync2Len; unsigned short Bit0Len; unsigned short Bit1Len; unsigned short PilotPulses; unsigned short FinalBits; unsigned int DataLen; }; struct TZXTone { unsigned short PulseLen; unsigned short NoPulses; }; struct TZXPulse { unsigned short NoPulses; }; struct TZXData { unsigned short Len0; unsigned short Len1; unsigned short FinalBits; int DataLen; }; struct TZXDRec { int SampleLen; unsigned short FinalBits; int Samples; }; struct TZXCSW { int BlockLen; int SampleRate; int Compression; int Flags; int NoPulses; }; struct TZXGeneral { int TOTP, NPP, ASP, TOTD, NPD, ASD; int DataLen; //int Flags, DataLen; //unsigned short PilotLen; //unsigned short PilotPulses; //unsigned short SyncPulses; //unsigned short MaxPulsesBit; //unsigned short NoSymbols; //unsigned short FinalBits; }; struct TZXPause { }; struct TZXGStart { unsigned short NameLen; }; struct TZXGEnd { }; struct TZXJump { unsigned short JumpRel; }; struct TZXLStart { unsigned short Repeats; }; struct TZXLEend { }; struct TZXSelect { unsigned short Offset; unsigned short TextLen; }; struct TZXSBlock { unsigned short BlockLen; unsigned short NoSelections; }; struct TZXStop48K { unsigned short BlockLen; }; struct TZXSetLevel { unsigned short Level; }; struct TZXText { unsigned short TextLen; }; struct TZXMessage { unsigned short Time; unsigned short TextLen; }; struct TZXArchiveText { unsigned short TextID; unsigned short TextLen; }; struct TZXArchive { unsigned short BlockLen; unsigned short NoStrings; }; struct TZXHWInfo { unsigned short Type; unsigned short ID; unsigned short Information; }; struct TZXHWType { unsigned short NoTypes; }; struct TZXCustom { char IDString[11]; int Length; }; struct TZXGlue { }; union TZXBlockInfo { struct TZXROM ROM; struct TZXTurbo Turbo; struct TZXTone Tone; struct TZXPulse Pulse; struct TZXData Data; struct TZXDRec DRec; struct TZXCSW CSW; struct TZXGeneral General; struct TZXPause Pause; struct TZXGStart GStart; struct TZXGEnd End; struct TZXJump Jump; struct TZXLStart LStart; struct TZXLEend LEend; struct TZXSBlock SBlock; struct TZXStop48K Stop48K; struct TZXSetLevel SetLevel; struct TZXText Text; struct TZXMessage Message; struct TZXArchive Archive; struct TZXHWType HWType; struct TZXCustom Custom; struct TZXGlue Glue; struct TZXUnknown Unknown; }; union TZXBlockData { unsigned char *Data; unsigned short *Pulses; struct TZXSelect *Selections; struct TZXArchiveText *Strings; struct TZXHWInfo *HWTypes; char *CustomInfo; }; struct TZXBlock { int BlockID; int Pause; int Group; union TZXBlockInfo Head; union TZXBlockData Data; //unsigned short *SyncPulses, *Alphabet; unsigned short *SymDefP, *SymDefD, *PRLE; }; class TTZXFile { private: int StartBlock; int EarState; int LoopBlockStart, LoopBlockCounter; bool BlockInProgress; bool LoadT81File(AnsiString FileName, bool Insert); bool LoadPFile(AnsiString FileName, bool Insert); bool LoadTAPFile(AnsiString FileName, bool Insert); bool LoadROMBlock(FILE *f); bool LoadTurboBlock(FILE *f); bool LoadToneBlock(FILE *f); bool LoadPulseBlock(FILE *f); bool LoadDataBlock(FILE *f); bool LoadDRecBlock(FILE *f); bool LoadCSWBlock(FILE *f); bool LoadOldGeneralBlock(FILE *f); bool LoadGeneralBlock(FILE *f); bool LoadPauseBlock(FILE *f); bool LoadGStartBlock(FILE *f); bool LoadGEndBlock(FILE *f); bool LoadJumpBlock(FILE *f); bool LoadLStartBlock(FILE *f); bool LoadLEndBlock(FILE *f); bool LoadSBlock(FILE *f); bool LoadStop48KBlock(FILE *f); bool LoadSetLevelBlock(FILE *f); bool LoadTextBlock(FILE *f); bool LoadMessageBlock(FILE *f); bool LoadArchiveBlock(FILE *f); bool LoadHWTypeBlock(FILE *f); bool LoadCustomBlock(FILE *f); bool LoadGlueBlock(FILE *f); bool LoadUnknownBlock(FILE *f, int BlockID); bool SaveTapFile(AnsiString FileName); bool SaveT81File(AnsiString FileName); bool SavePFile(AnsiString FileName); bool SaveOFile(AnsiString FileName); void WriteByte(FILE *f, unsigned char a); void WriteWord(FILE *f, int c); void WriteDWord(FILE *f, int c); void Write3Bytes(FILE *f, int d); void WriteBytes(FILE *f, int len, void *buf); void SaveROMBlock(int Block, FILE *f); void SaveTurboBlock(int Block, FILE *f); void SaveToneBlock(int Block, FILE *f); void SavePulseBlock(int Block, FILE *f); void SaveDataBlock(int Block, FILE *f); void SaveDRecBlock(int Block, FILE *f); void SaveCSWBlock(int Block, FILE *f); void SaveGeneralBlock(int Block, FILE *f); void SavePauseBlock(int Block, FILE *f); void SaveGStartBlock(int Block, FILE *f); void SaveGEndBlock(int Block, FILE *f); void SaveJumpBlock(int Block, FILE *f); void SaveLStartBlock(int Block, FILE *f); void SaveLEndBlock(int Block, FILE *f); void SaveSBlock(int Block, FILE *f); void SaveStop48KBlock(int Block, FILE *f); void SaveSetLevelBlock(int Block, FILE *f); void SaveTextBlock(int Block, FILE *f); void SaveMessageBlock(int Block, FILE *f); void SaveArchiveBlock(int Block, FILE *f); void SaveHWTypeBlock(int Block, FILE *f); void SaveCustomBlock(int Block, FILE *f); void SaveGlueBlock(int Block, FILE *f); void SaveUnknownBlock(int Block, FILE *f); bool StateChange(void); void EventNextBlock(void); bool EventDoPause(void); bool EventPause(void); bool EventJump(void); bool EventLStart(void); bool EventLEnd(void); bool EventSetLevel(void); bool EventGeneral(void); bool EventTurbo(void); bool EventTone(void); bool EventPulseSeq(void); bool EventStop48k(void); void StopNow(bool Error); unsigned char ReadByte(FILE *f); unsigned unsigned short ReadWord(FILE *f); unsigned int ReadDWord(FILE *f); unsigned int Read3Bytes(FILE *f); void ReadBytes(FILE *f, int len, void *buf); public: struct TZXBlock Tape[TZX_MAX_BLOCKS]; AnsiString FileName; int Blocks, CurBlock; int CurBlockLen, CurBlockProgress; int Pause; bool FlashLoad; bool AutoStart; bool Playing; bool Stopping; bool LoadFile(AnsiString FileName, bool Insert); bool SaveFile(AnsiString FileName); void EraseBlock(int BlockNo); void InsertBlock(int Position); void EraseAll(void); void DeleteBlock(int Block); void EditBlock(int Block, int Mx, int My); void MergeBlocks(void); void MoveBlock(int from, int to); void SwapBlocks(int b1, int b2); bool IsEditable(int BlockNo); int AddROMBlock(char *data, int len); int AddTextBlock(char *str); int AddHWTypeBlock(unsigned char type, unsigned char id); int AddPauseBlock(int len); int AddGeneralBlock(char *data, int len); int AddArchiveBlock(char *str); int AddGroupStartBlock(char *str); int AddGroupEndBlock(void); void GroupCount(void); void NewTZX(void); AnsiString GetBlockName(int BlockNo); AnsiString GetBlockType(int BlockNo); AnsiString GetBlockLength(int BlockNo); AnsiString GetFName(int BlockNo); unsigned char *GetBlockData(int Block); int GetGroup(int Block); bool ClockTick(int Tstates); bool Start(void); void Stop(bool Error); bool GetEarState(void); bool FlashLoadable; void CountBlocks(int *zx81, int *spec, int *other); }; extern TTZXFile TZXFile; #endif