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trfuncs.pas
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{
This is part of Vortex Tracker II project
(c)2000-2009 S.V.Bulba
Author: Sergey Bulba, [email protected]
Support page: http://bulba.untergrund.net/
Version 2.0 and later:
(c)2017-2019 Ivan Pirog, [email protected]
https://github.com/ivanpirog/vortextracker
}
unit trfuncs;
interface
uses SysUtils, Controls, Dialogs, Math;
type
TChansArray = array[0..2] of integer;
const
StdChns: TChansArray = (0, 1, 2); //ABC (for export to text/clipboard)
MaxPatLen = 256; //Pro Tracker 3.xx allows 64 max :(
DefPatLen = 64;
MaxPatNum = 84; //Alone Coder had made Pro Tracker 3.6x+ with 48 patterns
//and with player, which supports up to 85 patterns
MaxNumOfPats = MaxPatNum + 1;
MaxOrnLen = 255; //can be up to 255; 64 in ZX version of PT3-editor
MaxSamLen = 64; //not bigger than 64 (players limitation)
MaxPosNum = 255; // max positions in track
PreviewSamNum = 32;
PreviewOrnNum = 16;
FeaturesLevel: integer = 1;
//0 for PT 3.5 and older
//1 for VT II and PT3.6 (Correct3xxxInterpretation - Allows Vortex Tracker II
//rightly do the situation like
// A-4 .... 11.1
// --- .... ....
// A-4 .... 31.1
//An ASC modules conversion also depends of this switch)
//2 for PT 3.7 (New1xxx2xxxInterpretation - PT 3.7 1.xx and 2.xx allows sinlge
//tone offset without glissando)
DetectFeaturesLevel: boolean = True;
VortexModuleHeader: boolean = True;
DetectModuleHeader: boolean = True;
MaxNumberOfSoundChips = 2;
type
BytePtr = ^byte;
WordPtr = ^word;
DWordPtr = ^longword;
Available_Types =
(Unknown, STCFile, ASCFile, ASC0File, STPFile, PSCFile, FLSFile, FTCFile,
PT1File, PT2File, PT3File, SQTFile, GTRFile, FXMFile, PSMFile);
TRegisters = packed record
case Boolean of
True: (Index: array[0..13] of byte);
False: (TonA, TonB, TonC: word;
Noise, Mixer: byte;
AmplitudeA, AmplitudeB, AmplitudeC: byte;
Envelope: word;
EnvType: byte);
end;
PPosition = ^TPosition;
TPosition = record
Value: array[0..255] of integer; {0..42 for compatability with Pro Tracker 3.4r,
i.e. max 43 patterns (85 in 3.6+}
Colors: array[0..255] of Integer;
Length, Loop: integer;
end;
POrnament = ^TOrnament;
TOrnament = record
Items: array[0..MaxOrnLen - 1] of shortint;
Length, Loop: Integer;
CopyAll: Boolean;
end;
PSampleTick = ^TSampleTick;
TSampleTick = record
Add_to_Ton: smallint;
Ton_Accumulation: boolean;
Amplitude: byte;
Amplitude_Sliding: boolean;
Amplitude_Slide_Up: boolean;
Envelope_Enabled: boolean;
Envelope_or_Noise_Accumulation: boolean;
Add_to_Envelope_or_Noise: shortint;
Mixer_Ton, Mixer_Noise: boolean;
end;
PSample = ^TSample;
TSample = packed record
Length, Loop: byte;
Enabled: boolean;
Items: array[0..MaxSamLen-1] of TSampleTick;
end;
TAdditionalCommand = packed record
Number: byte;
Delay: byte;
Parameter: byte;
end;
PChannelLine = ^TChannelLine;
TChannelLine = packed record
Note: shortint; {0..95} {-2 - Sound off (R--)} {-1 - No note (---)}
Sample: byte; {0..31}
Ornament: byte; {0..15}
Volume: shortint; {1-15 - vol, 0 - prev vol}
Envelope: byte; {1-14 - R13, 15 - Envelope off, 0 - prev}
Additional_Command: TAdditionalCommand;
end;
PPattern = ^TPattern;
TPattern = record
Length: integer;
Items: array[0..MaxPatLen - 1] of record
Noise: byte;
Envelope: word;
Channel: array[0..2] of TChannelLine;
end;
end;
PLastNoteParams = ^TLastNoteParams;
TLastNoteParams = array[0..2] of record
Line: byte; {0..255}
Sample: byte; {0..31}
Ornament: byte; {0..15}
Volume: shortint; {1-15 - vol, 0 - prev vol}
Envelope: byte; {1-14 - R13, 15 - Envelope off, 0 - prev}
end;
PModule = ^TModule;
TModule = packed record
ChipFreq: Integer;
IntFreq: Integer;
Title, Author, Info: string;
ShowInfo: Boolean;
Ton_Table: byte;
Initial_Delay: byte;
Positions: TPosition;
Samples: array[1..32] of PSample; // 32 sample for samples browser preview (check PreviewSamNum const)
Ornaments: array[0..16] of POrnament; // 16 ornament for ornaments browser preview (check PreviewOrnNum const)
Patterns: array[-1..MaxPatNum] of PPattern;
FeaturesLevel: integer;
VortexModule_Header: boolean;
IsChans: array[0..2] of record
Global_Ton, Global_Noise, Global_Envelope, EnvelopeEnabled: boolean;
Ornament, Sample, Volume: byte;
end;
end;
PSpeccyModule = ^TSpeccyModule;
TSpeccyModule = packed record
case Integer of
0: (Index: array[0..65535] of byte);
1: (PT3_Name: array[0..$62] of char;
PT3_Table: byte;
PT3_Delay: byte;
PT3_NumberOfPositions: byte;
PT3_LoopPosition: byte;
PT3_PatternsPointer: word;
PT3_SamplePointers: array[0..31] of word;
PT3_OrnamentPointers: array[0..15] of word);
2: (PT2_Delay: byte;
PT2_NumberOfPositions: byte;
PT2_LoopPosition: byte;
PT2_SamplePointers: array[0..31] of word;
PT2_OrnamentPointers: array[0..15] of word;
PT2_PatternsPointer: word;
PT2_MusicName: array[0..29] of char;
PT2_PositionList: array[0..65535 - 131] of byte);
3: (ST_Delay: byte;
ST_PositionsPointer, ST_OrnamentsPointer, ST_PatternsPointer: word;
ST_Name: array[0..17] of char;
ST_Size: word);
4: (STP_Delay: byte;
STP_PositionsPointer, STP_PatternsPointer,
STP_OrnamentsPointer, STP_SamplesPointer: word;
STP_Init_Id: byte);
5: (SQT_Size, SQT_SamplesPointer, SQT_OrnamentsPointer, SQT_PatternsPointer,
SQT_PositionsPointer, SQT_LoopPointer: word);
6: (ASC1_Delay, ASC1_LoopingPosition: byte;
ASC1_PatternsPointers, ASC1_SamplesPointers, ASC1_OrnamentsPointers: word;
ASC1_Number_Of_Positions: byte;
ASC1_Positions: array[0..65535 - 9] of byte);
7: (ASC0_Delay: byte;
ASC0_PatternsPointers, ASC0_SamplesPointers, ASC0_OrnamentsPointers: word;
ASC0_Number_Of_Positions: byte;
ASC0_Positions: array[0..65535 - 8] of byte);
8: (PSC_MusicName: array[0..68] of char;
PSC_UnknownPointer: word;
PSC_PatternsPointer: word;
PSC_Delay: byte;
PSC_OrnamentsPointer: word;
PSC_SamplesPointers: array[0..31] of word);
9: (FLS_PositionsPointer: word;
FLS_OrnamentsPointer: word;
FLS_SamplesPointer: word;
FLS_PatternsPointers: array[1..(65536 - 6) div 6] of packed record
PatternA, PatternB, PatternC: word;
end);
10: (PT1_Delay: byte;
PT1_NumberOfPositions: byte;
PT1_LoopPosition: byte;
PT1_SamplesPointers: array[0..15] of word;
PT1_OrnamentsPointers: array[0..15] of word;
PT1_PatternsPointer: word;
PT1_MusicName: array[0..29] of char;
PT1_PositionList: array[0..65535 - 99] of byte);
11: (GTR_Delay: byte;
GTR_ID: array[0..3] of char;
GTR_Address: word;
GTR_Name: array[0..31] of char;
GTR_SamplesPointers: array[0..14] of word;
GTR_OrnamentsPointers: array[0..15] of word;
GTR_PatternsPointers: array[0..31] of packed record
PatternA, PatternB, PatternC: word;
end;
GTR_NumberOfPositions: byte;
GTR_LoopPosition: byte;
GTR_Positions: array[0..65536 - 295 - 1] of byte);
12: (FTC_MusicName: array[0..68] of char;
FTC_Delay: byte;
FTC_Loop_Position: byte;
FTC_Slack: integer;
FTC_PatternsPointer: word;
FTC_Slack2: array[0..4] of byte;
FTC_SamplesPointers: array[0..31] of word;
FTC_OrnamentsPointers: array[0..32] of word;
FTC_Positions: array[0..(65536 - $D4) div 2 - 1] of packed record
Pattern: byte;
Transposition: shortint;
end);
13: (PSM_PositionsPointer: word;
PSM_SamplesPointer: word;
PSM_OrnamentsPointer: word;
PSM_PatternsPointer: word;
PSM_Remark: array[0..65535 - 8] of byte);
end;
//AY-file header and structures
TAYFileHeader = packed record
FileID, TypeID: longword;
FileVersion, PlayerVersion: byte;
PSpecialPlayer, PAuthor, PMisc: smallint;
NumOfSongs, FirstSong: byte;
PSongsStructure: smallint;
end;
TSongStructure = packed record
PSongName, PSongData: smallint;
end;
TSongData = packed record
ChanA, ChanB, ChanC, Noise: byte;
SongLength: word;
FadeLength: word;
HiReg, LoReg: byte;
PPoints, PAddresses: smallint;
end;
TPoints = packed record
Stek, Init, Inter: word;
Adr1, Len1, Offs1, Adr2, Len2, Offs2, Zero: word;
end;
TChanParams = record
SamplePosition, SamplePrevPosition: byte;
OrnamentPosition: byte;
SoundEnabled: boolean;
Slide_To_Note, Note: Byte;
Ton_Slide_Delay: shortint;
Ton_Slide_Count: shortint;
Ton_Slide_Step, Ton_Slide_Delta: SmallInt;
Ton_Slide_Type: integer;
Current_Ton_Sliding: SmallInt;
OnOff_Delay, OffOn_Delay, Current_OnOff: shortint;
Ton, Ton_Accumulator: word;
Amplitude: Byte;
Current_Amplitude_Sliding: shortint;
Current_Envelope_Sliding: shortint;
Current_Noise_Sliding: shortint;
end;
// FamiTracker Row
PFamiRow = ^TFamiRow;
TFamiRow = packed record
Note: Byte;
Octave: Byte;
NoteVolume: Byte;
Instrument: Byte;
fx1cmd: Byte;
fx2cmd: Byte;
fx3cmd: Byte;
fx4cmd: Byte;
fx1prm: Byte;
fx2prm: Byte;
fx3prm: Byte;
fx4prm: Byte;
end;
// FamiTracker Clipboard
TFamiTrackerBuffer = record
Channels: Integer;
Rows: Integer;
SelectStart: Integer;
SelectEnd: Integer;
undefined1: Integer;
undefined2: Integer;
Data: array of TFamiRow;
end;
const
FamiNotes = 'C-C#D-D#E-F-F#G-G#A-A#B-';
EmptySampleTick: TSampleTick =
(Add_to_Ton: 0; Ton_Accumulation: False; Amplitude: 0; Amplitude_Sliding: False;
Amplitude_Slide_Up: False; Envelope_Enabled: False;
Envelope_or_Noise_Accumulation: False; Add_to_Envelope_or_Noise: 0; Mixer_Ton: False;
Mixer_Noise: False);
EmptyChannelLine: TChannelLine =
(Note: - 1; Sample: 0; Ornament: 0; Volume: 0; Envelope: 0;
Additional_Command: (Number: 0; Delay: 0; Parameter: 0));
KsaId = 'KSA SOFTWARE COMPILATION OF ';
var
FamiClipboardType: Integer;
UnlimiteDelay: Boolean;
TxtFile: TextFile;
TxtLine: integer;
TxtString: string;
MidChan: integer = 1;
CurChip: integer;
PlVars: array[1..MaxNumberOfSoundChips] of record
CurrentPosition: integer;
CurrentPattern: integer;
CurrentLine: Integer;
Env_Base: smallint;
ParamsOfChan: array[0..2] of TChanParams;
Delay, DelayCounter: shortint;
Cur_Env_Slide: smallint;
Cur_Env_Delay, Env_Delay: shortint;
Env_Slide_Add: smallint;
AddToEnv, AddToNoise: shortint;
PT3Noise: Byte;
IntCnt: integer;
end;
procedure checkVTMPointer;
procedure Module_SetPointer(ModulePointer: PModule; Chip: integer);
{óñòàíàâëèâàåò óêàçàòåëü íà ñòðóêòóðó ìîäóëÿ}
{Âûçûâàåòñÿ õîòÿ áû ðàç ïåðåä èñïîëüçîâàíèåì äðóãèõ ïðîöåäóð}
procedure Module_SetDelay(Dl: shortint);
{Óñòàíàâëèâàåò òåêóùèé Delay
 ïðîöåññå ïðîèãðûâàíèÿ Delay ìîæåò ìåíÿòüñÿ ñïåö êîìàíäîé}
{Âûçûâàåòñÿ êàæäûé ðàç ïåðåä íà÷àëîì ïðîèãðûâàíèÿ ïðîöåäóðàìè
Pattern_PlayCurrentLine èëè Module_PlayCurrentLine, èíà÷å
áóäåò èñïîëüçîâàíî ïîñëåäíåå çíà÷åíèå Delay, êîòîðîå â îáùåì
ñëó÷àå ìîæåò áûòü ëþáûì. Äèàïàçîí çíà÷åíèé - 3..255
(3 - äëÿ ñîâìåñòèìîñòè ñ PT3)}
procedure Module_SetCurrentPosition(Position: Integer);
{óñòàíàâëèâàåò òåêóùóþ ïîçèöèþ}
{çíà÷åíèÿ Position: 0..255;
Ýòî çíà÷åíèå èñïîëüçóåòñÿ â êà÷åñòâå èíäåêñà ïðè âûáîðå íîìåðà ïàòòåðíà
èç VTM.Position_List)}
procedure Module_SetCurrentPattern(Pattern: Integer);
{óñòàíàâëèâàåò òåêóùóþ ïîçèöèþ}
{çíà÷åíèÿ Pattern: 0..MaxPatNum}
procedure Pattern_SetCurrentLine(Line: Integer);
{óñòàíàâëèâàåò òåêóùóþ ñòðîêó â ïàòòåðíå}
{Çíà÷åíèÿ: îò 0 äî PatternLength-1}
{Ñ ýòîé ñòðîêè íà÷íóò ïðîèãðûâàíèå ôóíêöèè
Module_PlayCurrentLine èëè Pattern_PlayCurrentLine)}
procedure Module_GoNextPosition;
{Ïåðåõîä íà ïàòòåðí ñëåäóþùåé ïîçèöèè, íà ïåðâóþ ëèíèþ}
function Pattern_PlayCurrentLine: Integer;
{âîçâðàùàåò çíà÷åíèÿ ðåãèñòðîâ AY äëÿ òåêóùåé ñòðîêè ïàòòåðíà
è äåëàåò ñëåäóþùóþ ñòðîêó òåêóùåé.
Íà âûõîäå:
Åñëè '1' - ñòðîêà çàêîí÷èëàñü è AYRegisters óæå îò íîâîé ñòðîêè
Åñëè '2' - áîëüøå ñòðîê íåò è AYRegisters íå ìåíÿþòñÿ
针֌ - '0'}
function Module_PlayCurrentLine: Integer;
{âîçâðàùàåò çíà÷åíèÿ ðåãèñòðîâ AY äëÿ òåêóùåé ñòðîêè ïàòòåðíà
è äåëàåò ñëåäóþùóþ ñòðîêó òåêóùåé, ïî äîñòèæåíèþ ïîñëåäíåé
ñòðîêè àâòîìàòè÷åñêè ñòàíîâèòñÿ òåêóùèì ñëåäóþùèé ïî Position
List ïàòòåðí.
Íà âûõîäå:
Åñëè '1' - ñòðîêà çàêîí÷èëàñü è AYRegisters óæå îò íîâîé ñòðîêè
Åñëè '2' - Ïàòòåðí çàêîí÷èëñÿ è AYRegisters - îò ïåðâîé ñòðîêè
ñëåäóþùåãî ïî PositionList ïàòåðíà
Åñëè '3' - âñå ïàòòåðíû çàêîí÷èëèñü è AYRegisters - îò ïåðâîé ñòðîêè
ïåðâîãî ïî PositionList ïàòåðíà
针֌ - '0'}
procedure Pattern_PlayOnlyCurrentLine;
{âîçâðàùàåò çíà÷åíèÿ ðåãèñòðîâ AY äëÿ òåêóùåé ñòðîêè ïàòòåðíà, ïåðåõîä
íà ñëåäóþùóþ ñòðîêó íå ïðîèçâîäèòñÿ.}
function PT32VTM(PT3: PSpeccyModule; FSize: Integer; VTM1: PModule; var VTM2: PModule): boolean;
{êîíâåðòåð èç PT3 â VTM.
PT3 - óêàçàòåëü íà ïðåäâàðèòåëüíî çàãðóæåííûé PT3}
procedure InitTrackerParameters(All: boolean);
{Âûçâàòü äëÿ èíèöèàëèçàöèè âíóòðåííèõ ïåðåìåííûõ}
{All = True => 1F.F => Sam=1,Env=15,Orn=0,Vol=15}
procedure ValidatePattern(pat: integer; VTM: PModule);
function LoadPatternDataTxt(OnePat: PPattern; DecNoise: Boolean): integer;
function LoadSampleDataTxt(Sam: PSample; DecNoise: Boolean): string;
function GetEmptySample: TSample;
procedure ValidateSample(sam: integer; VTM: PModule);
function RecognizeOrnamentString(const orst: string; Orn: POrnament): boolean;
function LoadModuleFromText(FN: string; VTM1: PModule; var VTM2: PModule): integer;
function PT22VTM(PT2: PSpeccyModule; VTM: PModule): boolean;
function PT12VTM(PT1: PSpeccyModule; VTM: PModule): boolean;
function STC2VTM(STC: PSpeccyModule; FSize: integer; VTM: PModule): boolean;
function STP2VTM(STP: PSpeccyModule; VTM: PModule): boolean;
function SQT2VTM(SQT: PSpeccyModule; VTM: PModule): boolean;
function ASC2VTM(ASC: PSpeccyModule; VTM: PModule): boolean;
function PSC2VTM(PSC: PSpeccyModule; VTM: PModule): boolean;
function FLS2VTM(FLS: PSpeccyModule; VTM: PModule): boolean;
function GTR2VTM(GTR: PSpeccyModule; VTM: PModule): boolean;
function FTC2VTM(FTC: PSpeccyModule; VTM: PModule): boolean;
function FXM2VTM(FXM: PSpeccyModule; ZXAddr, Tm, amad_andsix: integer;
SongN, AuthN: string; VTM: PModule): boolean;
function PSM2VTM(PSM: PSpeccyModule; VTM: PModule): boolean;
function IntsToTime(i: integer): string;
function Int2ToStr(i: integer): string;
function Int1DToStr(i: integer): string;
function SampToStr(i: integer): string;
function NoteToStr(i: integer): string;
function NoteToStr2(i: integer): string;
function Int2DToStr(i: integer): string;
function Int4DToStr(i: integer): string;
function SGetNumber(s: string; max: integer; var res: integer): boolean;
function SGetDecNumber(s: string; max: integer; var res: integer): boolean;
function SGetNote(s: string; var res: integer): boolean;
function SGetNote2(s: string): ShortInt;
function GetOutPatternLineString(PatNum: integer; PatPtr: PPattern;
LineNum: integer; Chn: TChansArray; Previous:Boolean): string;
function GetPatternLineString(PatPtr: PPattern; Line: integer; Chn: TChansArray;
LineNums, Separators: Boolean): string;
function GetSampleString(SL: TSampleTick; Vol, Ns: boolean): string;
function GetSampleStringForRedraw(SL: TSampleTick): string;
procedure SavePattern(VTMP: PModule; n: integer);
procedure SaveSample(VTMP: PModule; n: integer);
procedure SaveOrnament(VTM: PModule; n: integer);
procedure VTM2TextFile(FileName: string; VTM: PModule; Apnd: boolean);
function VTM2PT3(PT3: PSpeccyModule; VTM: PModule;
var Module_Size: Integer): boolean;
{êîíâåðòåð èç VTM â PT3.
PT3 - óêàçàòåëü, ãäå áóäåò ñôîðìèðîâàí PT3
â Module_Size âîçâðàùàåòñÿ ðàçìåð äàííîãî PT3}
procedure PrepareZXModule(ZXP: PSpeccyModule; var FType: Available_Types; Length: integer);
function LoadAndDetect(ZXP: PSpeccyModule; FileName: string; var Length: integer;
var FType2: Available_Types; var TSSize2: integer;
var ZXAddr: word; var Tm: integer; var Andsix: byte;
var AuthorName, SongName: string): Available_Types;
function GetModuleTime(VTM: PModule): integer;
function GetPositionTime(VTM: PModule; Pos: integer; var PosDelay: integer): integer;
function GetPositionTimeEx(VTM: PModule; Pos, PosDelay, Line: integer): integer;
function GetNoteFreq(ToneTable, Note: Integer): Integer;
function GetNoteByEnvelope(e: integer): integer;
function GetNoteByEnvelope2(ToneTableIndex: integer; e: integer): integer;
procedure GetTimeParams(VTM: PModule; Time: integer; var Pos, Line: integer);
procedure FreeVTMP(var VTMP: PModule);
procedure NewVTMP(var VTMP: PModule);
type
PT3ToneTable = array[0..95] of word;
PPT3ToneTable = ^PT3ToneTable;
const
Notes: array[0..11] of string = (
'C-', 'C#', 'D-', 'D#', 'E-', 'F-', 'F#', 'G-', 'G#', 'A-', 'A#', 'B-'
);
TableNames: array[0..4] of String = (
'ProTracker 3.3',
'Sound Tracker',
'ASM or PSC (1.75 MHz)',
'RealSound',
'IvanRochin NATURAL Cmaj/Am'
);
{Table #0 of Pro Tracker 3.4x - 3.5x}
PT3NoteTable_PT: PT3ToneTable = (
$0C22, $0B73, $0ACF, $0A33, $09A1, $0917, $0894, $0819, $07A4, $0737, $06CF, $066D,
$0611, $05BA, $0567, $051A, $04D0, $048B, $044A, $040C, $03D2, $039B, $0367, $0337,
$0308, $02DD, $02B4, $028D, $0268, $0246, $0225, $0206, $01E9, $01CE, $01B4, $019B,
$0184, $016E, $015A, $0146, $0134, $0123, $0112, $0103, $00F5, $00E7, $00DA, $00CE,
$00C2, $00B7, $00AD, $00A3, $009A, $0091, $0089, $0082, $007A, $0073, $006D, $0067,
$0061, $005C, $0056, $0052, $004D, $0049, $0045, $0041, $003D, $003A, $0036, $0033,
$0031, $002E, $002B, $0029, $0027, $0024, $0022, $0020, $001F, $001D, $001B, $001A,
$0018, $0017, $0016, $0014, $0013, $0012, $0011, $0010, $000F, $000E, $000D, $000C);
{Table #1 of Pro Tracker 3.3x - 3.5x)}
PT3NoteTable_ST: PT3ToneTable = (
$0EF8, $0E10, $0D60, $0C80, $0BD8, $0B28, $0A88, $09F0, $0960, $08E0, $0858, $07E0,
$077C, $0708, $06B0, $0640, $05EC, $0594, $0544, $04F8, $04B0, $0470, $042C, $03FD,
$03BE, $0384, $0358, $0320, $02F6, $02CA, $02A2, $027C, $0258, $0238, $0216, $01F8,
$01DF, $01C2, $01AC, $0190, $017B, $0165, $0151, $013E, $012C, $011C, $010A, $00FC,
$00EF, $00E1, $00D6, $00C8, $00BD, $00B2, $00A8, $009F, $0096, $008E, $0085, $007E,
$0077, $0070, $006B, $0064, $005E, $0059, $0054, $004F, $004B, $0047, $0042, $003F,
$003B, $0038, $0035, $0032, $002F, $002C, $002A, $0027, $0025, $0023, $0021, $001F,
$001D, $001C, $001A, $0019, $0017, $0016, $0015, $0013, $0012, $0011, $0010, $000F);
{Table #2 of Pro Tracker 3.4x - 3.5x}
PT3NoteTable_ASM: PT3ToneTable = (
$0D10, $0C55, $0BA4, $0AFC, $0A5F, $09CA, $093D, $08B8, $083B, $07C5, $0755, $06EC,
$0688, $062A, $05D2, $057E, $052F, $04E5, $049E, $045C, $041D, $03E2, $03AB, $0376,
$0344, $0315, $02E9, $02BF, $0298, $0272, $024F, $022E, $020F, $01F1, $01D5, $01BB,
$01A2, $018B, $0174, $0160, $014C, $0139, $0128, $0117, $0107, $00F9, $00EB, $00DD,
$00D1, $00C5, $00BA, $00B0, $00A6, $009D, $0094, $008C, $0084, $007C, $0075, $006F,
$0069, $0063, $005D, $0058, $0053, $004E, $004A, $0046, $0042, $003E, $003B, $0037,
$0034, $0031, $002F, $002C, $0029, $0027, $0025, $0023, $0021, $001F, $001D, $001C,
$001A, $0019, $0017, $0016, $0015, $0014, $0012, $0011, $0010, $000F, $000E, $000D);
{Table #3 of Pro Tracker 3.4x - 3.5x}
PT3NoteTable_REAL: PT3ToneTable = (
$0CDA, $0C22, $0B73, $0ACF, $0A33, $09A1, $0917, $0894, $0819, $07A4, $0737, $06CF,
$066D, $0611, $05BA, $0567, $051A, $04D0, $048B, $044A, $040C, $03D2, $039B, $0367,
$0337, $0308, $02DD, $02B4, $028D, $0268, $0246, $0225, $0206, $01E9, $01CE, $01B4,
$019B, $0184, $016E, $015A, $0146, $0134, $0123, $0112, $0103, $00F5, $00E7, $00DA,
$00CE, $00C2, $00B7, $00AD, $00A3, $009A, $0091, $0089, $0082, $007A, $0073, $006D,
$0067, $0061, $005C, $0056, $0052, $004D, $0049, $0045, $0041, $003D, $003A, $0036,
$0033, $0031, $002E, $002B, $0029, $0027, $0024, $0022, $0020, $001F, $001D, $001B,
$001A, $0018, $0017, $0016, $0014, $0013, $0012, $0011, $0010, $000F, $000E, $000D);
{Table #4 of IvanRochin NATURAL Cmaj/Am}
PT3NoteTable_NATURAL: PT3ToneTable = (
//5760, 5400, 5120, 4800, 4608, 4320, 4050, 3840, 3600, 3456, 3240, 3072, //3041280
//1520640 MHz
2880, 2700, 2560, 2400, 2304, 2160, 2025, 1920, 1800, 1728, 1620, 1536,
1440, 1350, 1280, 1200, 1152, 1080, 1013, 960, 900, 864, 810, 768,
720, 675, 640, 600, 576, 540, 506, 480, 450, 432, 405, 384,
360, 338, 320, 300, 288, 270, 253, 240, 225, 216, 203, 192,
180, 169, 160, 150, 144, 135, 127, 120, 113, 108, 101, 96,
90, 84, 80, 75, 72, 68, 63, 60, 56, 54, 51, 48,
45, 42, 40, 38, 36, 34, 32, 30, 28, 27, 25, 24,
23, 21, 20, 19, 18, 17, 16, 15, 14, 14, 13, 12);
{Volume table of Pro Tracker 3.5x}
PT3_Vol: array[0..15, 0..15] of byte = (
($00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00),
($00, $00, $00, $00, $00, $00, $00, $00, $01, $01, $01, $01, $01, $01, $01, $01),
($00, $00, $00, $00, $01, $01, $01, $01, $01, $01, $01, $01, $02, $02, $02, $02),
($00, $00, $00, $01, $01, $01, $01, $01, $02, $02, $02, $02, $02, $03, $03, $03),
($00, $00, $01, $01, $01, $01, $02, $02, $02, $02, $03, $03, $03, $03, $04, $04),
($00, $00, $01, $01, $01, $02, $02, $02, $03, $03, $03, $04, $04, $04, $05, $05),
($00, $00, $01, $01, $02, $02, $02, $03, $03, $04, $04, $04, $05, $05, $06, $06),
($00, $00, $01, $01, $02, $02, $03, $03, $04, $04, $05, $05, $06, $06, $07, $07),
($00, $01, $01, $02, $02, $03, $03, $04, $04, $05, $05, $06, $06, $07, $07, $08),
($00, $01, $01, $02, $02, $03, $04, $04, $05, $05, $06, $07, $07, $08, $08, $09),
($00, $01, $01, $02, $03, $03, $04, $05, $05, $06, $07, $07, $08, $09, $09, $0A),
($00, $01, $01, $02, $03, $04, $04, $05, $06, $07, $07, $08, $09, $0A, $0A, $0B),
($00, $01, $02, $02, $03, $04, $05, $06, $06, $07, $08, $09, $0A, $0A, $0B, $0C),
($00, $01, $02, $03, $03, $04, $05, $06, $07, $08, $09, $0A, $0A, $0B, $0C, $0D),
($00, $01, $02, $03, $04, $05, $06, $07, $07, $08, $09, $0A, $0B, $0C, $0D, $0E),
($00, $01, $02, $03, $04, $05, $06, $07, $08, $09, $0A, $0B, $0C, $0D, $0E, $0F));
implementation
uses AY, WaveOutAPI, FXMImport, Main, RegExpr, Classes, StrUtils;
var
VTM: PModule;
procedure checkVTMPointer;
function DoNothing(a: Integer): Boolean;
begin
result := True;
end;
var a: Integer;
begin
if VTM = nil then Exit;
try
// Try to get access
a := VTM.Ton_Table;
DoNothing(a);
except
// VTM pointer is pointing to freed memory!
// Let's clear pointer.
VTM := nil;
end;
end;
procedure Module_SetPointer(ModulePointer: PModule; Chip: integer);
begin
VTM := ModulePointer;
CurChip := Chip
end;
procedure Module_SetDelay(Dl: shortint);
begin
PlVars[CurChip].Delay := Dl;
end;
procedure InitTrackerParameters(All: boolean);
var
k: integer;
begin
ResetAYChipEmulation(CurChip);
PlVars[CurChip].DelayCounter := 1;
PlVars[CurChip].PT3Noise := 0;
PlVars[CurChip].Env_Base := 0;
PlVars[CurChip].IntCnt := 0;
if All then
for k := 0 to 2 do
begin
VTM.IsChans[k].Sample := 1;
VTM.IsChans[k].EnvelopeEnabled := False;
VTM.IsChans[k].Ornament := 0;
VTM.IsChans[k].Volume := 15
end;
for k := 0 to 2 do
begin
PlVars[CurChip].ParamsOfChan[k].SamplePosition := 0;
PlVars[CurChip].ParamsOfChan[k].OrnamentPosition := 0;
PlVars[CurChip].ParamsOfChan[k].SoundEnabled := False;
PlVars[CurChip].ParamsOfChan[k].Note := 0;
PlVars[CurChip].ParamsOfChan[k].Ton_Slide_Count := 0;
PlVars[CurChip].ParamsOfChan[k].Current_Ton_Sliding := 0;
PlVars[CurChip].ParamsOfChan[k].Current_OnOff := 0;
PlVars[CurChip].ParamsOfChan[k].Ton_Accumulator := 0;
PlVars[CurChip].ParamsOfChan[k].Ton := 0;
PlVars[CurChip].ParamsOfChan[k].Current_Amplitude_Sliding := 0;
PlVars[CurChip].ParamsOfChan[k].Current_Envelope_Sliding := 0;
PlVars[CurChip].ParamsOfChan[k].Current_Noise_Sliding := 0
end;
PlVars[CurChip].CurrentLine := 0
end;
procedure Pattern_SetCurrentLine(Line: Integer);
begin
PlVars[CurChip].CurrentLine := Line
end;
procedure Module_SetCurrentPattern(Pattern: Integer);
begin
PlVars[CurChip].CurrentPattern := Pattern;
Pattern_SetCurrentLine(0)
end;
procedure Module_SetCurrentPosition(Position: Integer);
begin
if VTM.Positions.Length = 0 then exit;
PlVars[CurChip].CurrentPosition := Position;
Module_SetCurrentPattern(VTM.Positions.Value[Position])
end;
procedure Module_GoNextPosition;
var
NextPosition, LastPosition: byte;
begin
NextPosition := PlVars[CurChip].CurrentPosition + 1;
LastPosition := VTM.Positions.Length - 1;
if NextPosition > LastPosition then
if LoopAllowed or MainForm.LoopAllAllowed then
Module_SetCurrentPosition(VTM.Positions.Loop)
else
Pattern_SetCurrentLine(0)
else
Module_SetCurrentPosition(NextPosition);
Pattern_PlayCurrentLine;
end;
function GetNoteFreq(ToneTable, Note: Integer): Integer;
begin
case ToneTable of
0: Result := PT3NoteTable_PT[Note];
1: Result := PT3NoteTable_ST[Note];
2: Result := PT3NoteTable_ASM[Note];
3: Result := PT3NoteTable_REAL[Note];
else
Result := PT3NoteTable_NATURAL[Note]
end
end;
function GetNoteByEnvelope2(ToneTableIndex: Integer; e: integer): integer;
var
NoteTable: PT3ToneTable;
n, i, d: Integer;
f: Real;
NearestNote: Integer;
BestDistanceFoundYet: Word;
begin
case ToneTableIndex of
0: NoteTable := PT3NoteTable_PT;
1: NoteTable := PT3NoteTable_ST;
2: NoteTable := PT3NoteTable_ASM;
3: NoteTable := PT3NoteTable_REAL;
else
NoteTable := PT3NoteTable_NATURAL;
end;
Result := -1;
for i := 0 to Length(NoteTable)-1 do
begin
f := (NoteTable[i] / 16);
n := Round(f);
if n = e then
begin
Result := i;
Exit;
end
end;
if Result >= 0 then Exit;
// Search nearest note
NearestNote := -1;
BestDistanceFoundYet := $FFFF;
for i := 0 to Length(NoteTable)-1 do begin
n := Round(NoteTable[i] / 16);
d := Abs(e - n);
if d < BestDistanceFoundYet then begin
BestDistanceFoundYet := d;
NearestNote := i;
end;
end;
Result := NearestNote;
end;
function GetNoteByEnvelope(e: integer): integer;
var ToneTable: Integer;
begin
checkVTMPointer;
if VTM = nil then ToneTable := -1
else
ToneTable := VTM.Ton_Table;
if ToneTable = -1 then
begin
Result := 0;
Exit;
end;
Result := GetNoteByEnvelope2(ToneTable, e);
end;
procedure Pattern_PlayOnlyCurrentLine;
var
TempMixer: integer;
procedure GetRegisters(ChNum: integer);
var
j: byte;
w: word;
gt, gn, ge: boolean;
begin
with PlVars[CurChip].ParamsOfChan[ChNum], VTM.IsChans[ChNum] do
begin
if SoundEnabled then
begin
if (VTM.Samples[Sample] = nil) or
(SamplePosition >= VTM.Samples[Sample].Length) then
Ton := 0
else
begin
Ton := Ton_Accumulator + VTM.Samples[Sample].Items[SamplePosition].Add_to_Ton;
if VTM.Samples[Sample].Items[SamplePosition].Ton_Accumulation then
Ton_Accumulator := Ton
end;
if (VTM.Ornaments[Ornament] = nil) or
(OrnamentPosition >= VTM.Ornaments[Ornament].Length) then
j := Note
else
j := Note + VTM.Ornaments[Ornament].Items[OrnamentPosition];
if shortint(j) < 0 then
j := 0
else if j > 95 then
j := 95;
w := GetNoteFreq(VTM.Ton_Table, j);
Ton := (Ton + Current_Ton_Sliding + w) and $FFF;
if Ton_Slide_Count > 0 then
begin
Dec(Ton_Slide_Count);
if Ton_Slide_Count = 0 then
begin
Inc(Current_Ton_Sliding, Ton_Slide_Step);
Ton_Slide_Count := Ton_Slide_Delay;
if Ton_Slide_Type = 1 then
if ((Ton_Slide_Step < 0) and (Current_Ton_Sliding <= Ton_Slide_Delta)) or
((Ton_Slide_Step >= 0) and (Current_Ton_Sliding >= Ton_Slide_Delta)) then
begin
Note := Slide_To_Note;
Ton_Slide_Count := 0;
Current_Ton_Sliding := 0
end
end
end;
if (VTM.Samples[Sample] = nil) or
(SamplePosition >= VTM.Samples[Sample].Length) then
Amplitude := 0
else
begin
Amplitude := VTM.Samples[Sample].Items[SamplePosition].Amplitude;
if VTM.Samples[Sample].Items[SamplePosition].Amplitude_Sliding then
if VTM.Samples[Sample].Items[SamplePosition].Amplitude_Slide_Up then
begin
if Current_Amplitude_Sliding < 15 then inc(Current_Amplitude_Sliding)
end
else
if Current_Amplitude_Sliding > -15 then dec(Current_Amplitude_Sliding);
inc(Amplitude, Current_Amplitude_Sliding);
if shortint(Amplitude) < 0 then Amplitude := 0
else if Amplitude > 15 then Amplitude := 15;
Amplitude := PT3_Vol[Volume, Amplitude];
if VTM.Samples[Sample].Items[SamplePosition].Envelope_Enabled and EnvelopeEnabled then
Amplitude := Amplitude or 16;
if not VTM.Samples[Sample].Items[SamplePosition].Mixer_Noise then
begin
j := Current_Envelope_Sliding +
VTM.Samples[Sample].Items[SamplePosition].Add_to_Envelope_or_Noise;
if VTM.Samples[Sample].Items[SamplePosition].
Envelope_or_Noise_Accumulation then
Current_Envelope_Sliding := j;
inc(PlVars[CurChip].AddToEnv, j);
end
else
begin
PlVars[CurChip].PT3Noise := Current_Noise_Sliding +
VTM.Samples[Sample].Items[SamplePosition].Add_to_Envelope_or_Noise;
if VTM.Samples[Sample].Items[SamplePosition].Envelope_or_Noise_Accumulation then
Current_Noise_Sliding := PlVars[CurChip].PT3Noise
end;
if not VTM.Samples[Sample].Items[SamplePosition].Mixer_Ton then
TempMixer := TempMixer or 8;
if not VTM.Samples[Sample].Items[SamplePosition].Mixer_Noise then
TempMixer := TempMixer or $40;
end;
if VTM.Samples[Sample] <> nil then
begin
SamplePrevPosition := SamplePosition;
Inc(SamplePosition);
if SamplePosition >= VTM.Samples[Sample].Length then
SamplePosition := VTM.Samples[Sample].Loop
end;
if VTM.Ornaments[Ornament] <> nil then
begin
inc(OrnamentPosition);
if OrnamentPosition >= VTM.Ornaments[Ornament].Length then
OrnamentPosition := VTM.Ornaments[Ornament].Loop
end
end
else
Amplitude := 0;
TempMixer := TempMixer shr 1;
if Current_OnOff > 0 then
begin
Dec(Current_OnOff);
if Current_OnOff = 0 then
begin
SoundEnabled := not SoundEnabled;
if SoundEnabled then
Current_OnOff := OnOff_Delay
else
Current_OnOff := OffOn_Delay
end
end;
if PlVars[CurChip].CurrentPattern = -1 then exit;
gt := VTM.IsChans[ChNum].Global_Ton;
gn := VTM.IsChans[ChNum].Global_Noise;
ge := VTM.IsChans[ChNum].Global_Envelope;
if (VTM.Samples[Sample] <> nil) and not VTM.Samples[Sample].Enabled then
begin
gt := False;
gn := False;
ge := False;
end;
if not gt then TempMixer := TempMixer or 4;
if not gn then TempMixer := TempMixer or 32;
if not ge then Amplitude := Amplitude and 15;
if (not gt or not gn) and (Amplitude and 16 = 0) and (TempMixer and 36 = 36) then
Amplitude := 0;
end;
end;
var
k: integer;
begin
Inc(PlVars[CurChip].IntCnt);
PlVars[CurChip].AddToEnv := 0;
TempMixer := 0;
for k := 0 to 2 do
GetRegisters(k);
with SoundChip[CurChip] do
begin
SetMixerRegister(TempMixer);
AYRegisters.TonA := PlVars[CurChip].ParamsOfChan[0].Ton;
AYRegisters.TonB := PlVars[CurChip].ParamsOfChan[1].Ton;
AYRegisters.TonC := PlVars[CurChip].ParamsOfChan[2].Ton;
SetAmplA(PlVars[CurChip].ParamsOfChan[0].Amplitude);
SetAmplB(PlVars[CurChip].ParamsOfChan[1].Amplitude);
SetAmplC(PlVars[CurChip].ParamsOfChan[2].Amplitude);
AYRegisters.Noise := (PlVars[CurChip].PT3Noise + PlVars[CurChip].AddToNoise) and 31;
AYRegisters.Envelope := PlVars[CurChip].AddToEnv + PlVars[CurChip].Cur_Env_Slide + PlVars[CurChip].Env_Base;
end;
if PlVars[CurChip].Cur_Env_Delay > 0 then
begin
Dec(PlVars[CurChip].Cur_Env_Delay);
if PlVars[CurChip].Cur_Env_Delay = 0 then
begin
PlVars[CurChip].Cur_Env_Delay := PlVars[CurChip].Env_Delay;
Inc(PlVars[CurChip].Cur_Env_Slide, PlVars[CurChip].Env_Slide_Add)
end
end
end;
function Pattern_PlayCurrentLine: integer;
procedure PatternInterpreter(ChNum: integer);
var
TS, PrNote, Ch, Gls: integer;
begin
Ch := ChNum;
if PlVars[CurChip].CurrentPattern = -1 then Ch := MidChan;
with VTM.Patterns[PlVars[CurChip].CurrentPattern].Items[PlVars[CurChip].CurrentLine].Channel[ChNum] do
begin
TS := PlVars[CurChip].ParamsOfChan[Ch].Current_Ton_Sliding;
PrNote := PlVars[CurChip].ParamsOfChan[Ch].Note;
if Note = -2 then
begin
PlVars[CurChip].ParamsOfChan[Ch].SoundEnabled := False;
PlVars[CurChip].ParamsOfChan[Ch].Current_Envelope_Sliding := 0;
PlVars[CurChip].ParamsOfChan[Ch].Ton_Slide_Count := 0;
PlVars[CurChip].ParamsOfChan[Ch].SamplePosition := 0;
PlVars[CurChip].ParamsOfChan[Ch].OrnamentPosition := 0;
PlVars[CurChip].ParamsOfChan[Ch].Current_Noise_Sliding := 0;
PlVars[CurChip].ParamsOfChan[Ch].Current_Amplitude_Sliding := 0;
PlVars[CurChip].ParamsOfChan[Ch].Current_OnOff := 0;
PlVars[CurChip].ParamsOfChan[Ch].Current_Ton_Sliding := 0;
PlVars[CurChip].ParamsOfChan[Ch].Ton_Accumulator := 0
end