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impulsetracker/SoundDrivers/M32BIT.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
M32Mix8Single Macro Index
M32Mix8Single&Index&:
MovSX EBX, Byte Ptr [ES:DI]
M32Mix8SingleVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
ShL EAX, 8
Add ERROR, DELTAERROR ;; 1
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*8], EAX ;; 3
EndM
M32Mix8Central Macro Index
M32Mix8Central&Index&:
MovSX EBX, Byte Ptr [ES:DI] ;; 4
M32Mix8CentralVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
ShL EAX, 8 ;; 4
Add ERROR, DELTAERROR ;; 1
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*8], EAX ;; 4
Sub [SI+(Index-15)*8+4], EAX ;; 4
EndM
M32Mix8Surround Macro Index
M32Mix8Surround&Index&:
MovSX EBX, Byte Ptr [ES:DI] ;; 4
M32Mix8SurroundVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
ShL EAX, 8 ;; 4
Add ERROR, DELTAERROR ;; 1
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*8], EAX ;; 4
Add [SI+(Index-15)*8+4], EAX ;; 4
EndM
; Panned output
M32Mix8Panned Macro Index
M32Mix8Panned&Index&:
MovSX EBX, Byte Ptr [ES:DI] ;; 4
M32Mix8LeftVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
M32Mix8RightVolume&Index& EQU $+3
IMul EBX, EBX, 8000h
ShL EAX, 8 ;; 4
ShL EBX, 8 ;; 4
Sub [SI+(Index-15)*8], EAX ;; 4
Sub [SI+(Index-15)*8+4], EBX ;; 4
Add ERROR, DELTAERROR ;; 1
AdC DI, DELTAOFFSET ;; 1
EndM
M32Mix16Single Macro Index
M32Mix16Single&Index&:
MovSX EBX, Word Ptr [ES:EDI+EDI]
M32Mix16SingleVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
Add ERROR, DELTAERROR ;; 1
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*8], EAX ;; 3
EndM
M32Mix16Central Macro Index
M32Mix16Central&Index&:
MovSX EBX, Word Ptr [ES:EDI+EDI]
M32Mix16CentralVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
Add ERROR, DELTAERROR ;; 1
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*8], EAX ;; 3
Sub [SI+(Index-15)*8+4], EAX ;; 3
EndM
M32Mix16Surround Macro Index
M32Mix16Surround&Index&:
MovSX EBX, Word Ptr [ES:EDI+EDI]
M32Mix16SurroundVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
Add ERROR, DELTAERROR ;; 1
AdC DI, DELTAOFFSET ;; 1
Sub [SI+(Index-15)*8], EAX ;; 3
Add [SI+(Index-15)*8+4], EAX ;; 3
EndM
; Panned output
M32Mix16Panned Macro Index
M32Mix16Panned&Index&:
MovSX EBX, Word Ptr [ES:EDI+EDI]
M32Mix16LeftVolume&Index& EQU $+3
IMul EAX, EBX, 8000h
M32Mix16RightVolume&Index& EQU $+3
IMul EBX, EBX, 8000h
Sub [SI+(Index-15)*8], EAX
Sub [SI+(Index-15)*8+4], EBX
Add ERROR, DELTAERROR
AdC DI, DELTAOFFSET
EndM
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Mix32Single8BitOffsetTable Label Word
IndexCounter = 15
M32Mix8SingleOffset Macro Index
DW Offset M32Mix8Single&Index&
EndM
REPT 16
M32Mix8SingleOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Single8Bit
; 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
Jmp [CS:Mix32Single8BitOffsetTable+BX]
M32Mix8Single 0
M32Mix8Single 1
M32Mix8Single 2
M32Mix8Single 3
M32Mix8Single 4
M32Mix8Single 5
M32Mix8Single 6
M32Mix8Single 7
M32Mix8Single 8
M32Mix8Single 9
M32Mix8Single 10
M32Mix8Single 11
M32Mix8Single 12
M32Mix8Single 13
M32Mix8Single 14
M32Mix8Single 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M32Mix8Single0
Ret
EndP Mix32Single8Bit
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Proc PreMix32Left8Bit
Mov AX, [SI+0Eh]
PreMix32Left8Bit1:
IndexCounter = 0
PreMix32SingleMacro Macro Index
Mov Word Ptr [CS:M32Mix8SingleVolume&Index&], AX
EndM
REPT 16
PreMix32SingleMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Left8Bit
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Proc PreMix32Right8Bit
Add MixBufferOffset, MixResolution/8
Mov AX, [SI+0Ch]
Jmp PreMix32Left8Bit1
EndP PreMix32Right8Bit
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Mix32Central8BitOffsetTable Label Word
IndexCounter = 15
M32Mix8CentralOffset Macro Index
DW Offset M32Mix8Central&Index&
EndM
REPT 16
M32Mix8CentralOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Central8Bit
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
Jmp [CS:Mix32Central8BitOffsetTable+BX]
M32Mix8Central 0
M32Mix8Central 1
M32Mix8Central 2
M32Mix8Central 3
M32Mix8Central 4
M32Mix8Central 5
M32Mix8Central 6
M32Mix8Central 7
M32Mix8Central 8
M32Mix8Central 9
M32Mix8Central 10
M32Mix8Central 11
M32Mix8Central 12
M32Mix8Central 13
M32Mix8Central 14
M32Mix8Central 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M32Mix8Central0
Ret
EndP Mix32Central8Bit
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Proc PreMix32Central8Bit
Mov AX, [SI+0Eh]
IndexCounter = 0
PreMix32CentralMacro Macro Index
Mov Word Ptr [CS:M32Mix8CentralVolume&Index&], AX
EndM
REPT 16
PreMix32CentralMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Central8Bit
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Mix32Surround8BitOffsetTable Label Word
IndexCounter = 15
M32Mix8SurroundOffset Macro Index
DW Offset M32Mix8Surround&Index&
EndM
REPT 16
M32Mix8SurroundOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Surround8Bit
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
Jmp [CS:Mix32Surround8BitOffsetTable+BX]
M32Mix8Surround 0
M32Mix8Surround 1
M32Mix8Surround 2
M32Mix8Surround 3
M32Mix8Surround 4
M32Mix8Surround 5
M32Mix8Surround 6
M32Mix8Surround 7
M32Mix8Surround 8
M32Mix8Surround 9
M32Mix8Surround 10
M32Mix8Surround 11
M32Mix8Surround 12
M32Mix8Surround 13
M32Mix8Surround 14
M32Mix8Surround 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M32Mix8Surround0
Ret
EndP Mix32Surround8Bit
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Proc PreMix32Surround8Bit
Mov AX, [SI+0Eh]
IndexCounter = 0
PreMix32SurroundMacro Macro Index
Mov Word Ptr [CS:M32Mix8SurroundVolume&Index&], AX
EndM
REPT 16
PreMix32SurroundMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Surround8Bit
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Mix32Panned8BitOffsetTable Label Word
IndexCounter = 15
M32Mix8PannedOffset Macro Index
DW Offset M32Mix8Panned&Index&
EndM
REPT 16
M32Mix8PannedOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Panned8Bit
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
Jmp [CS:Mix32Panned8BitOffsetTable+BX]
M32Mix8Panned 0
M32Mix8Panned 1
M32Mix8Panned 2
M32Mix8Panned 3
M32Mix8Panned 4
M32Mix8Panned 5
M32Mix8Panned 6
M32Mix8Panned 7
M32Mix8Panned 8
M32Mix8Panned 9
M32Mix8Panned 10
M32Mix8Panned 11
M32Mix8Panned 12
M32Mix8Panned 13
M32Mix8Panned 14
M32Mix8Panned 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M32Mix8Panned0
Ret
EndP Mix32Panned8Bit
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Proc PreMix32Panned8Bit
Mov AX, [SI+0Eh] ; Left
Mov BX, [SI+0Ch] ; Right
IndexCounter = 0
PreMix32PannedMacro Macro Index
Mov Word Ptr [CS:M32Mix8LeftVolume&Index&], AX
Mov Word Ptr [CS:M32Mix8RightVolume&Index&], BX
EndM
REPT 16
PreMix32PannedMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Panned8Bit
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Mix32Single16BitOffsetTable Label Word
IndexCounter = 15
M32Mix16SingleOffset Macro Index
DW Offset M32Mix16Single&Index&
EndM
REPT 16
M32Mix16SingleOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Single16Bit
; 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
Jmp [CS:Mix32Single16BitOffsetTable+BX]
M32Mix16Single 0
M32Mix16Single 1
M32Mix16Single 2
M32Mix16Single 3
M32Mix16Single 4
M32Mix16Single 5
M32Mix16Single 6
M32Mix16Single 7
M32Mix16Single 8
M32Mix16Single 9
M32Mix16Single 10
M32Mix16Single 11
M32Mix16Single 12
M32Mix16Single 13
M32Mix16Single 14
M32Mix16Single 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M32Mix16Single0
Ret
EndP Mix32Single16Bit
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Proc PreMix32Left16Bit
Mov AX, [SI+0Eh] ; Left
PreMix32Left16Bit1:
IndexCounter = 0
PreMix32SingleMacro Macro Index
Mov Word Ptr [CS:M32Mix16SingleVolume&Index&], AX
EndM
REPT 16
PreMix32SingleMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Left16Bit
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Proc PreMix32Right16Bit
Add MixBufferOffset, MixResolution/8
Mov AX, [SI+0Ch]
Jmp PreMix32Left16Bit1
Ret
EndP PreMix32Right16Bit
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Mix32Central16BitOffsetTable Label Word
IndexCounter = 15
M32Mix16CentralOffset Macro Index
DW Offset M32Mix16Central&Index&
EndM
REPT 16
M32Mix16CentralOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Central16Bit
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
Jmp [CS:Mix32Central16BitOffsetTable+BX]
M32Mix16Central 0
M32Mix16Central 1
M32Mix16Central 2
M32Mix16Central 3
M32Mix16Central 4
M32Mix16Central 5
M32Mix16Central 6
M32Mix16Central 7
M32Mix16Central 8
M32Mix16Central 9
M32Mix16Central 10
M32Mix16Central 11
M32Mix16Central 12
M32Mix16Central 13
M32Mix16Central 14
M32Mix16Central 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M32Mix16Central0
Ret
EndP Mix32Central16Bit
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Proc PreMix32Central16Bit
Mov AX, [SI+0Eh]
IndexCounter = 0
PreMix32CentralMacro Macro Index
Mov Word Ptr [CS:M32Mix16CentralVolume&Index&], AX
EndM
REPT 16
PreMix32CentralMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Central16Bit
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Mix32Surround16BitOffsetTable Label Word
IndexCounter = 15
M32Mix16SurroundOffset Macro Index
DW Offset M32Mix16Surround&Index&
EndM
REPT 16
M32Mix16SurroundOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Surround16Bit
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
Jmp [CS:Mix32Surround16BitOffsetTable+BX]
M32Mix16Surround 0
M32Mix16Surround 1
M32Mix16Surround 2
M32Mix16Surround 3
M32Mix16Surround 4
M32Mix16Surround 5
M32Mix16Surround 6
M32Mix16Surround 7
M32Mix16Surround 8
M32Mix16Surround 9
M32Mix16Surround 10
M32Mix16Surround 11
M32Mix16Surround 12
M32Mix16Surround 13
M32Mix16Surround 14
M32Mix16Surround 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ M32Mix16Surround0
Ret
EndP Mix32Surround16Bit
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Proc PreMix32Surround16Bit
Mov AX, [SI+0Eh]
IndexCounter = 0
PreMix32SurroundMacro Macro Index
Mov Word Ptr [CS:M32Mix16SurroundVolume&Index&], AX
EndM
REPT 16
PreMix32SurroundMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Surround16Bit
;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
Mix32Panned16BitOffsetTable Label Word
IndexCounter = 15
M32Mix16PannedOffset Macro Index
DW Offset M32Mix16Panned&Index&
EndM
REPT 16
M32Mix16PannedOffset %IndexCounter
IndexCounter = IndexCounter-1
EndM
Proc Mix32Panned16Bit
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
Jmp [CS:Mix32Panned16BitOffsetTable+BX]
Pan32Bit16Loop:
M32Mix16Panned 0
M32Mix16Panned 1
M32Mix16Panned 2
M32Mix16Panned 3
M32Mix16Panned 4
M32Mix16Panned 5
M32Mix16Panned 6
M32Mix16Panned 7
M32Mix16Panned 8
M32Mix16Panned 9
M32Mix16Panned 10
M32Mix16Panned 11
M32Mix16Panned 12
M32Mix16Panned 13
M32Mix16Panned 14
M32Mix16Panned 15
Add SI, 16*MIXRESOLUTION/4
Dec LoopCounter
JNZ Pan32Bit16Loop
Ret
EndP Mix32Panned16Bit
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Proc PreMix32Panned16Bit
Mov AX, [SI+0Eh] ; Left
Mov BX, [SI+0Ch] ; Right
IndexCounter = 0
PreMix32PannedMacro Macro Index
Mov Word Ptr [CS:M32Mix16LeftVolume&Index&], AX
Mov Word Ptr [CS:M32Mix16RightVolume&Index&], BX
EndM
REPT 16
PreMix32PannedMacro %IndexCounter
IndexCounter = IndexCounter+1
EndM
Ret
EndP PreMix32Panned16Bit
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