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impulsetracker/SoundDrivers/M12BITF.MIX

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initial work on port updated readme, new "build system," fixed some errors
2023-03-09 21:35:56 -08:00
; Different mixing routines required:
; Left } shared
; Right }
; Central
; Surround
; Panned ; Each requires 8 bit and 16 bit
; Single output - for Mono, pure left/pure right
Get8BitFWaveform Macro
Mov AL, [ES:DI]
Add BL, 80h
Add AL, 80h
Add BL, AL
RCR BL, 1
Sub BL, 80h
EndM
Get16BitFWaveform Macro
Mov AL, [ES:EDI+EDI+1]
Add BL, 80h
Add AL, 80h
Add BL, AL
RCR BL, 1
Sub BL, 80h
EndM
M12Mix8FSingle Macro Index
M12Mix8FSingle&Index&:
Get8BitFWaveForm
Add ERROR, DELTAERROR
Mov AX, [EBX+EBX]
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX ;; 3
EndM
M12Mix8FCentral Macro Index
M12Mix8FCentral&Index&:
Get8BitFWaveform
Add ERROR, DELTAERROR ;; 1
Mov AX, [EBX+EBX] ;; 2
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX ;; 3
Sub [SI+(Index-15)*MixResolution/4+MixResolution/8+EXTRAOFFSET], AX ;; 3
EndM
M12Mix8FSurround Macro Index
M12Mix8FSurround&Index&:
Get8BitFWaveform
Add ERROR, DELTAERROR ;; 1
Mov AX, [EBX+EBX] ;; 2
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX ;; 3
Add [SI+(Index-15)*MixResolution/4+MixResolution/8+EXTRAOFFSET], AX ;; 3
EndM
M12Mix8FPanned Macro Index
M12Mix8FPanned&Index&:
Get8BitFWaveform
Add ERROR, DELTAERROR
AdC DI, DELTAOFFSET
Mov AX, [EBX+EBX]
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX
M12Mix8FPannedRightVolumeOffset&Index& EQU $+4
Mov AX, [EBX+EBX+1200h]
Sub [SI+(Index-15)*MixResolution/4+MixResolution/8+EXTRAOFFSET], AX
EndM
M12Mix16FSingle Macro Index
M12Mix16FSingle&Index&:
Get16BitFWaveForm
Add ERROR, DELTAERROR
Mov AX, [EBX+EBX]
AdC DI, DELTAOFFSET
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX
EndM
M12Mix16FCentral Macro Index
M12Mix16FCentral&Index&:
Get16BitFWaveform
Add ERROR, DELTAERROR
Mov AX, [EBX+EBX]
AdC DI, DELTAOFFSET
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX
Sub [SI+(Index-15)*MixResolution/4+MixResolution/8+EXTRAOFFSET], AX
EndM
M12Mix16FSurround Macro Index
M12Mix16FSurround&Index&:
Get16BitFWaveform
Add ERROR, DELTAERROR
Mov AX, [EBX+EBX]
AdC DI, DELTAOFFSET
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX
Add [SI+(Index-15)*MixResolution/4+MixResolution/8+EXTRAOFFSET], AX
EndM
; Panned output
M12Mix16FPanned Macro Index
M12Mix16FPanned&Index&:
Get16BitFWaveform
Add ERROR, DELTAERROR
AdC DI, DELTAOFFSET
Mov AX, [EBX+EBX]
Sub [SI+(Index-15)*MixResolution/4+EXTRAOFFSET], AX
M12Mix16FPannedRightVolumeOffset&Index& EQU $+4
Mov AX, [EBX+EBX+1200h]
Sub [SI+(Index-15)*MixResolution/4+MixResolution/8+EXTRAOFFSET], AX
EndM
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Mix12Single8BitFOffsetTable Label Word
IndexCounter = 15
M12Mix8FSingleOffset Macro Index
DW Offset M12Mix8FSingle&Index&
EndM
REPT 16
M12Mix8FSingleOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Single8BitF
; AX = count...
; Number of times to loop = (Count-1) / 16
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Single8BitFOffsetTable+BX]
Mix12Single8BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:DI]
RetN
M12Mix8FSingle 0
M12Mix8FSingle 1
M12Mix8FSingle 2
M12Mix8FSingle 3
M12Mix8FSingle 4
M12Mix8FSingle 5
M12Mix8FSingle 6
M12Mix8FSingle 7
M12Mix8FSingle 8
M12Mix8FSingle 9
M12Mix8FSingle 10
M12Mix8FSingle 11
M12Mix8FSingle 12
M12Mix8FSingle 13
M12Mix8FSingle 14
M12Mix8FSingle 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M12Mix8FSingle0
Ret
EndP Mix12Single8BitF
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Proc PreMix12Left8BitF
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Single8BitFVolume], AL
Ret
EndP PreMix12Left8BitF
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Proc PreMix12Right8BitF
Add MixBufferOffset, MixResolution/8
Mov AL, [SI+0Ch]
Mov Byte Ptr [CS:Mix12Single8BitFVolume], AL
Ret
EndP PreMix12Right8BitF
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Mix12Central8BitFOffsetTable Label Word
IndexCounter = 15
M12Mix8FCentralOffset Macro Index
DW Offset M12Mix8FCentral&Index&
EndM
REPT 16
M12Mix8FCentralOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Central8BitF
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Central8BitFOffsetTable+BX]
Mix12Central8BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:DI]
RetN
M12Mix8FCentral 0
M12Mix8FCentral 1
M12Mix8FCentral 2
M12Mix8FCentral 3
M12Mix8FCentral 4
M12Mix8FCentral 5
M12Mix8FCentral 6
M12Mix8FCentral 7
M12Mix8FCentral 8
M12Mix8FCentral 9
M12Mix8FCentral 10
M12Mix8FCentral 11
M12Mix8FCentral 12
M12Mix8FCentral 13
M12Mix8FCentral 14
M12Mix8FCentral 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M12Mix8FCentral0
Ret
EndP Mix12Central8BitF
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Proc PreMix12Central8BitF
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Central8BitFVolume], AL
Ret
EndP PreMix12Central8BitF
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Mix12Surround8BitFOffsetTable Label Word
IndexCounter = 15
M12Mix8FSurroundOffset Macro Index
DW Offset M12Mix8FSurround&Index&
EndM
REPT 16
M12Mix8FSurroundOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Surround8BitF
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Surround8BitFOffsetTable+BX]
Mix12Surround8BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:DI]
RetN
M12Mix8FSurround 0
M12Mix8FSurround 1
M12Mix8FSurround 2
M12Mix8FSurround 3
M12Mix8FSurround 4
M12Mix8FSurround 5
M12Mix8FSurround 6
M12Mix8FSurround 7
M12Mix8FSurround 8
M12Mix8FSurround 9
M12Mix8FSurround 10
M12Mix8FSurround 11
M12Mix8FSurround 12
M12Mix8FSurround 13
M12Mix8FSurround 14
M12Mix8FSurround 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M12Mix8FSurround0
Ret
EndP Mix12Surround8BitF
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Proc PreMix12Surround8BitF
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Surround8BitFVolume], AL
Ret
EndP PreMix12Surround8BitF
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Mix12Panned8BitFOffsetTable Label Word
IndexCounter = 15
M12Mix8FPannedOffset Macro Index
DW Offset M12Mix8FPanned&Index&
EndM
REPT 16
M12Mix8FPannedOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Panned8BitF
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Panned8BitFOffsetTable+BX]
Mix12Panned8BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:DI]
RetN
M12Mix8FPanned 0
M12Mix8FPanned 1
M12Mix8FPanned 2
M12Mix8FPanned 3
M12Mix8FPanned 4
M12Mix8FPanned 5
M12Mix8FPanned 6
M12Mix8FPanned 7
M12Mix8FPanned 8
M12Mix8FPanned 9
M12Mix8FPanned 10
M12Mix8FPanned 11
M12Mix8FPanned 12
M12Mix8FPanned 13
M12Mix8FPanned 14
M12Mix8FPanned 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M12Mix8FPanned0
Ret
EndP Mix12Panned8BitF
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Proc PreMix12Panned8BitF
Mov AL, [SI+0Eh]
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Panned8BitFVolume], AL
Xor AL, AL
Mov AH, [SI+0Ch]
Sub AH, [SI+0Eh]
Add AH, AH
MovSX EAX, AX
IndexCounter = 0
PreMix12Panned8BitFMacro2 Macro Index
Mov DWord Ptr [CS:M12Mix8FPannedRightVolumeOffset&Index&], EAX
EndM
REPT 16
PreMix12Panned8BitFMacro2 %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix12Panned8BitF
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Mix12Single16BitFOffsetTable Label Word
IndexCounter = 15
M12Mix16FSingleOffset Macro Index
DW Offset M12Mix16FSingle&Index&
EndM
REPT 16
M12Mix16FSingleOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Single16BitF
; AX = count...
; Number of times to loop = (Count-1) / 16
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Single16BitFOffsetTable+BX]
Mix12Single16BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:EDI+EDI+1]
RetN
M12Mix16FSingle 0
M12Mix16FSingle 1
M12Mix16FSingle 2
M12Mix16FSingle 3
M12Mix16FSingle 4
M12Mix16FSingle 5
M12Mix16FSingle 6
M12Mix16FSingle 7
M12Mix16FSingle 8
M12Mix16FSingle 9
M12Mix16FSingle 10
M12Mix16FSingle 11
M12Mix16FSingle 12
M12Mix16FSingle 13
M12Mix16FSingle 14
M12Mix16FSingle 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M12Mix16FSingle0
Ret
EndP Mix12Single16BitF
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Proc PreMix12Left16BitF
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Single16BitFVolume], AL
Ret
EndP PreMix12Left16BitF
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Proc PreMix12Right16BitF
Add MixBufferOffset, MixResolution/8
Mov AL, [SI+0Ch]
Mov Byte Ptr [CS:Mix12Single16BitFVolume], AL
Ret
EndP PreMix12Right16BitF
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Mix12Central16BitFOffsetTable Label Word
IndexCounter = 15
M12Mix16FCentralOffset Macro Index
DW Offset M12Mix16FCentral&Index&
EndM
REPT 16
M12Mix16FCentralOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Central16BitF
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Central16BitFOffsetTable+BX]
Mix12Central16BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:EDI+EDI+1]
RetN
M12Mix16FCentral 0
M12Mix16FCentral 1
M12Mix16FCentral 2
M12Mix16FCentral 3
M12Mix16FCentral 4
M12Mix16FCentral 5
M12Mix16FCentral 6
M12Mix16FCentral 7
M12Mix16FCentral 8
M12Mix16FCentral 9
M12Mix16FCentral 10
M12Mix16FCentral 11
M12Mix16FCentral 12
M12Mix16FCentral 13
M12Mix16FCentral 14
M12Mix16FCentral 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M12Mix16FCentral0
Ret
EndP Mix12Central16BitF
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Proc PreMix12Central16BitF
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Central16BitFVolume], AL
Ret
EndP PreMix12Central16BitF
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Mix12Surround16BitFOffsetTable Label Word
IndexCounter = 15
M12Mix16FSurroundOffset Macro Index
DW Offset M12Mix16FSurround&Index&
EndM
REPT 16
M12Mix16FSurroundOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Surround16BitF
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Surround16BitFOffsetTable+BX]
Mix12Surround16BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:EDI+EDI+1]
RetN
M12Mix16FSurround 0
M12Mix16FSurround 1
M12Mix16FSurround 2
M12Mix16FSurround 3
M12Mix16FSurround 4
M12Mix16FSurround 5
M12Mix16FSurround 6
M12Mix16FSurround 7
M12Mix16FSurround 8
M12Mix16FSurround 9
M12Mix16FSurround 10
M12Mix16FSurround 11
M12Mix16FSurround 12
M12Mix16FSurround 13
M12Mix16FSurround 14
M12Mix16FSurround 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M12Mix16FSurround0
Ret
EndP Mix12Surround16BitF
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Proc PreMix12Surround16BitF
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Surround16BitFVolume], AL
Ret
EndP PreMix12Surround16BitF
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Mix12Panned16BitFOffsetTable Label Word
IndexCounter = 15
M12Mix16FPannedOffset Macro Index
DW Offset M12Mix16FPanned&Index&
EndM
REPT 16
M12Mix16FPannedOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix12Panned16BitF
Dec AX
Mov BX, AX
And AX, 0Fh
ShR BX, 4
Add AX, AX
Inc BX
Mov LoopCounter, BX
Mov BX, AX
ShL AX, RESOLUTIONSHIFT-1
Add SI, AX
Push [CS:Mix12Panned16BitFOffsetTable+BX]
Mix12Panned16BitFVolume EQU $+3
Mov EBX, 0
Mov BL, [ES:EDI+EDI+1]
RetN
Pan12BitF16Loop:
M12Mix16FPanned 0
M12Mix16FPanned 1
M12Mix16FPanned 2
M12Mix16FPanned 3
M12Mix16FPanned 4
M12Mix16FPanned 5
M12Mix16FPanned 6
M12Mix16FPanned 7
M12Mix16FPanned 8
M12Mix16FPanned 9
M12Mix16FPanned 10
M12Mix16FPanned 11
M12Mix16FPanned 12
M12Mix16FPanned 13
M12Mix16FPanned 14
M12Mix16FPanned 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ Pan12BitF16Loop
Ret
EndP Mix12Panned16BitF
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Proc PreMix12Panned16BitF
Mov AL, [SI+0Eh]
Mov Byte Ptr [CS:Mix12Panned16BitFVolume], AL
Xor AL, AL
Mov AH, [SI+0Ch]
Sub AH, [SI+0Eh]
Add AH, AH
MovSX EAX, AX
IndexCounter = 0
PreMix12PannedMacro2 Macro Index
Mov DWord Ptr [CS:M12Mix16FPannedRightVolumeOffset&Index&], EAX
EndM
REPT 16
PreMix12PannedMacro2 %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix12Panned16BitF
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