1609 lines
53 KiB
Plaintext
Executable File
1609 lines
53 KiB
Plaintext
Executable File
;
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; WAV output mix functions....
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; Uses Cubic Spline Interpolation
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;
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ALIGN 4
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WAVMixingTable Label
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; 8 bit, 16 bit
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; No sound, stereo, surround
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; No loop, forwards loop, ping pong loop
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DW Offset UpdateNoLoop, 0, 0, 0, 0
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DW Offset UpdateForwardsLoop, 0, 0, 0, 0
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DW Offset UpdatePingPongLoop, 0, 0, 0, 0
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DW Offset MixNoLoop, PreM32SMix8Bit, MFS8Bit, MBS8Bit, Mix32Stereo8Bit
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DW Offset MixForwardsLoop, PreM32SMix8Bit, MFS8Bit, MBS8Bit, Mix32Stereo8Bit
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DW Offset MixPingPongLoop, PreM32SMix8Bit, MFS8Bit, MBS8Bit, Mix32Stereo8Bit
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DW Offset MixNoLoop, PreM32UMix8Bit, MFS8Bit, MBS8Bit, Mix32Surround8Bit
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DW Offset MixForwardsLoop, PreM32UMix8Bit, MFS8Bit, MBS8Bit, Mix32Surround8Bit
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DW Offset MixPingPongLoop, PreM32UMix8Bit, MFS8Bit, MBS8Bit, Mix32Surround8Bit
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DW Offset UpdateNoLoop, 0, 0, 0, 0
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DW Offset UpdateForwardsLoop, 0, 0, 0, 0
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DW Offset UpdatePingPongLoop, 0, 0, 0, 0
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DW Offset MixNoLoop, PreM32SMix16Bit, MFS16Bit, MBS16Bit, Mix32Stereo16Bit
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DW Offset MixForwardsLoop, PreM32SMix16Bit, MFS16Bit, MBS16Bit, Mix32Stereo16Bit
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DW Offset MixPingPongLoop, PreM32SMix16Bit, MFS16Bit, MBS16Bit, Mix32Stereo16Bit
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DW Offset MixNoLoop, PreM32UMix16Bit, MFS16Bit, MBS16Bit, Mix32Surround16Bit
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DW Offset MixForwardsLoop, PreM32UMix16Bit, MFS16Bit, MBS16Bit, Mix32Surround16Bit
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DW Offset MixPingPongLoop, PreM32UMix16Bit, MFS16Bit, MBS16Bit, Mix32Surround16Bit
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LastLeftValue DD 0
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LastRightValue DD 0
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Sample1 DD 0
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Sample2 DD 0
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Sample3 DD 0
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Sample4 DD 0
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SampleValue DD 0
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InterpolationOffset DD 0
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Const3 DD 3.0
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Const1On65536 DD 37800000h
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Const256On6 DD 422AAAAAh
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Const1On6 DD 3E2AAAAAh
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;Const65536 DD 65536.0
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Const32768 DD 32768.0
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Const1On32768 DD 38000000h
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;ConstLimiter DD 3F000000h
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Const22713_0 DD 22713.0
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MAXFILTERVALUE EQU 47000000h
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FILTERCLIPPINGTYPENONE EQU 0
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FILTERCLIPPINGTYPECOMPRESSOR EQU 1
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FILTERCLIPPINGTYPELIMIT EQU 0
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;<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>
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Get8BitWaveform Macro ; Puts waveform value in EBX, range -32k->+32k
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Local X
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IF CUBICINTERPOLATION
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Mov BX, DI
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Push EDX
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Push DS
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Push CS
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Pop DS
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Assume DS:Driver
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Sub BX, 1
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Mov InterpolationOffset, ECX
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AdC BX, 0
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FILD InterpolationOffset
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FMul Const1On65536
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MovSX EAX, Byte Ptr [ES:BX]
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MovSX EBX, Byte Ptr [ES:DI]
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Mov Sample1, EAX
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Mov Sample2, EBX
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FILD Sample1
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FILD Sample2
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FMul Const3
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MovSX EAX, Byte Ptr [ES:DI+1]
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MovSX EBX, Byte Ptr [ES:DI+2]
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Mov Sample3, EAX
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Mov Sample4, EBX
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FILD Sample3
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FMul Const3
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FILD Sample4 ; x, 3w, 3v, u, Interp
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; a = x+3v-3w-u
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; b = 3w+3u-6v
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; c = 6w-2u-x-3v
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; d = 6v
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; Assignments:
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; F = x+3v
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; -> a = F-3w-u
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; -> b = 3w+3u-6v
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; -> c = 6w-2u-F
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; -> d = 6v
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IF INTELOPTIMISED
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FAdd ST, ST(2) ; x+3v[3], 3w, 3v, u, Interp
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FLd ST(1) ; 3w, x+3v[3], 3w, 3v, u, Interp
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FAdd ST, ST(4) ; 3w+u[3], x+3v[2], 3w, 3v, u, Interp
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FXCh ST(4) ; u, x+3v[2], 3w, 3v, 3w+u[3], Interp
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FAdd ST, ST ; 2u[3], x+3v[1], 3w, 3v, 3w+u[2], Interp
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FXCh ST(3) ; 3v, x+3v[1], 3w, 2u[3], 3w+u[2], Interp
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FLd ST(1) ; x+3v, 3v, x+3v, 3w, 2u[3], 3w+u[1], Interp
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FSub ST, ST(5) ; a[3], 3v, x+3v, 3w, 2u[2], 3w+u, Interp
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FXCh ; 3v, a[3], x+3v, 3w, 2u[2], 3w+u, Interp
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FAdd ST, ST ; 6v[3], a[2], x+3v, 3w, 2u[1], 3w+u, Interp
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FXCh ST(5) ; 3w+u, a[2], x+3v, 3w, 2u[1], 6v[3], Interp
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FAdd ST, ST(4) ; 3w+3u[3], a[1], x+3v, 3w, 2u, 6v[2], Interp
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FXCh ; a[1], 3w+3u[3], x+3v, 3w, 2u, 6v[2], Interp
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FMul ST, ST(6) ; ax[3], 3w+3u[2], x+3v, 3w, 2u, 6v[1], Interp
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FXCh ST(2) ; x+3v, 3w+3u[2], ax[3], 3w, 2u, 6v[1], Interp
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FAddP ST(4), ST ; 3w+3u[1], ax[2], 3w, 2u+F[3], 6v, Interp
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FSub ST, ST(4) ; 3w+3u-6v[3], ax[1], 3w, 2u+F[2], 6v, Interp
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FXCh ST(2) ; 3w, ax[1], b[3], 2u+F[1], 6v, Interp
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FAdd ST, ST ; 6w[3], ax, b[2], 2u+F, 6v, Interp
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FXCh ; ax, 6w[3], b[2], 2u+F, 6v, Interp
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FAddP ST(2), ST ; 6w[1], ax+b[3], 2u+f, d, Interp
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FSubRP ST(2), ST ; ax+b, c[3], d, Interp
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FMul ST, ST(3) ; ax^2+bx[3], c[2], d, Interp
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FXCh ST(3) ; Interp, c[2], d, ax^2+bx[3]
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FMul Const256On6 ; sInterp[3], c, d, ax^2+bx[1]
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FXCh ; c, sInterp[3], d, ax^2+bx[1]
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FAddP ST(3), ST ; sInterp[2], d, ax^2+bx+c[3]
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FXCh ; d, sInterp[2], ax^2+bx+c[3]
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FMul Const256On6 ; sd[3], sInterp[1], ax^2+bx+c[2]
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FXCh ; sInterp[1], sd[3], ax^2+bx+c[2]
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FMulP ST(2), ST
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Pop DS
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Assume DS:Nothing
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Mov EDX, [DS:0]
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FAdd ; SampleValue (16 bit value)
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FLd DWord Ptr [DS:0] ; x(k-1), x(k)
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FMul DWord Ptr [DS:14h] ; b.x(k-1), x(k)
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FLd DWord Ptr [DS:4] ; x(k-2), b.x(k-1), x(k)
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FMul DWord Ptr [DS:18h] ; c.x(k-2), b.x(k-1), x(k)
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FXCh ST(2) ; x(k), b.x(k-1), c.x(k-2)
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FMul DWord Ptr [DS:10h] ; a.x(k), b.x(k-1), c.x(k-2)
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FXCh ST(2) ; c.x(k-2), b.x(k-1), a.x(k)
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FAdd
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Mov EDX, [DS:0]
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FAdd
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Mov [DS:4], EDX
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FSt DWord Ptr [DS:0]
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FIStP CS:SampleValue
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ELSE
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FAdd ST, ST(2) ; x+3v, 3w, 3v, u, Interp
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FLd ST(1) ; 3w, x+3v, 3w, 3v, u, Interp
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FSub ST, ST(4) ; 3w-u, x+3v, 3w, 3v, u, Interp
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FAdd ST, ST ; 6w-2u, x+3v, 3w, 3v, u, Interp
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FSub ST, ST(1) ; "c", x+3v, 3w, 3v, u, Interp
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FXCh ; x+3v, "c", 3w, 3v, u, Interp
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FSub ST, ST(2) ; x+3v-3w, "c", 3w, 3v, u, Interp
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FSub ST, ST(4) ; "a", "c", 3w, 3v, u, Interp
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FMul ST, ST(5) ; "ax", "c", 3w, 3v, u, Interp
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FXCh ST(3) ; 3v, "c", 3w, "ax", u, Interp
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FAdd ST, ST ; 6v, "c", 3w, "ax", u, Interp
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FXCh ST(4) ; u, "c", 3w, "ax", 6v, Interp
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FMul Const3 ; 3u, "c", 3w, "ax", 6v, Interp
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FSub ST, ST(4) ; 3u-6v, "c", 3w, "ax", 6v, Interp
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FAdd ST, ST(2) ; "b", "c", 3w, "ax", 6v, Interp
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FAdd ST, ST(3) ; "ax+b", "c", 3w, "ax", 6v, Interp
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FMul ST, ST(5) ; "ax^2+bx", "c", 3w, "ax", 6v, Interp
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FAdd ; ax^2+bx+c, 3w, "ax", 6v, Interp
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FMulP ST(4), ST ; 3w, "ax", 6v, ax^3+bx^2+cx
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FComPP ; 6v, ax^3+bx^2+cx
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FAdd ; SampleValue
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FMul Const256On6 ; x(k)
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Pop DS
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Assume DS:Nothing
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FMul DWord Ptr [DS:10h]
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FLd DWord Ptr [DS:0] ; x(k-1), x(k)
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FMul DWord Ptr [DS:14h] ; b.x(k-1), x(k)
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FLd DWord Ptr [DS:4] ; x(k-2), b.x(k-1), x(k)
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FMul DWord Ptr [DS:18h] ; c.x(k-2), b.x(k-1), x(k)
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FAdd
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Mov EDX, [DS:0]
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FAdd
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Mov [DS:4], EDX
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FSt DWord Ptr [DS:0]
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FIStP SampleValue
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ENDIF
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Pop EDX
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IF FILTERCLIPPINGTYPENONE
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ELSE
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Mov EAX, [DS:0]
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And EAX, 7FFFFFFFh
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Cmp EAX, MAXFILTERVALUE
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JBE X
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IF FILTERCLIPPINGTYPECOMPRESSOR
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Mov EBX, [DS:0]
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FLd CS:Const22713_0
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FLd DWord Ptr [DS:0]
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FAbs
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FMul CS:Const1On32768
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FYL2X ; ST = ln(x/65536) / ln(2) * 65536 * ln(2)
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FAdd CS:Const32768
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SAR EBX, 31
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FIStP SampleValue
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Xor SampleValue, EBX
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Sub SampleValue, EBX
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Comment ~
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Mov EBX, [DS:0]
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FLd DWord Ptr [DS:0]
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FAbs
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FSub [CS:Const65536]
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FMul [CS:ConstLimiter]
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FAdd [CS:Const65536]
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SAR EBX, 31
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FIStP SampleValue
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Xor SampleValue, EBX
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Sub SampleValue, EBX
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; FILD SampleValue
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; FStP DWord Ptr [DS:0]
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~
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ENDIF
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IF FILTERCLIPPINGTYPELIMIT
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Mov EBX, [DS:0]
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Mov EAX, MAXFILTERVALUE
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And EBX, 80000000h
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Or EAX, EBX
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Mov [DS:0], EAX
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ENDIF
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X:
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ENDIF
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Mov EBX, SampleValue
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ENDIF
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IF QUADRATICINTERPOLATION
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Push EDX
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Push EBP
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MovSX EDX, Byte Ptr [ES:DI+2] ; v
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MovSX EBX, Byte Ptr [ES:DI] ; t
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MovSX EAX, Byte Ptr [ES:DI+1] ; u
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LEA EBP, [EBX+EDX] ; v+t
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SAR EBP, 1
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Sub EBP, EAX ; (v+t)/2 - u
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IMul EBP, ECX ; ax in 8.16 format
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SAR EBP, 10 ; ax in 8.6 format
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ShL EAX, 7 ; EBX = 2u<<6
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Add EDX, EBX ; EDX = v+t
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Add EBX, EBX ; EAX = 2t
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Add EBP, EAX ; EBP = ax+2u
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Add EDX, EBX ; 3t+v
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ShL EDX, 5 ; (3t+v)/2 << 6
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Sub EBP, EDX ; ax+b
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ShL EBX, 7
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IMul EBP, ECX ; ax^2+bx in 8.22 form
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SAR EBP, 14 ; ax^2+bx in 8.8 form
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Add EBX, EBP ; ax^2+bx+c
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Pop EBP
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Pop EDX
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ENDIF
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IF LINEARINTERPOLATION
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MovSX EBX, Byte Ptr [ES:DI+1]
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MovSX EAX, Byte Ptr [ES:DI]
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Sub EBX, EAX
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IMul EBX, ECX
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SAR EBX, 8
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ShL EAX, 8
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Add EBX, EAX
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ENDIF
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IF POINTSAMPLED
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MovSX EBX, Byte Ptr [ES:DI]
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ShL EBX, 8
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ENDIF
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EndM
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Get16BitWaveform Macro ; Puts waveform value in EBX, range -32k->+32k
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Local X
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IF CUBICINTERPOLATION
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Mov EBX, EDI
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Push EDX
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Push DS
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Push CS
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Pop DS
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Assume DS:Driver
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Sub BX, 1
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Mov InterpolationOffset, ECX
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AdC BX, 0
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FILD InterpolationOffset
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FMul Const1On65536
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MovSX EAX, Word Ptr [ES:EBX+EBX]
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MovSX EBX, Word Ptr [ES:EDI+EDI]
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Mov Sample1, EAX
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Mov Sample2, EBX
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FILD Sample1
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FILD Sample2
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FMul Const3
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MovSX EAX, Word Ptr [ES:EDI+EDI+2]
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MovSX EBX, Word Ptr [ES:EDI+EDI+4]
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Mov Sample3, EAX
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Mov Sample4, EBX
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FILD Sample3
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FMul Const3
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FILD Sample4 ; x, 3w, 3v, u, Interp
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; a = x+3v-3w-u
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; b = 3w+3u-6v
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; c = 6w-2u-x-3v
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; d = 6v
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; Assignments:
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; F = x+3v
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; -> a = F-3w-u
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; -> b = 3w+3u-6v
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; -> c = 6w-2u-F
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; -> d = 6v
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IF INTELOPTIMISED
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FAdd ST, ST(2) ; x+3v[3], 3w, 3v, u, Interp
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FLd ST(1) ; 3w, x+3v[3], 3w, 3v, u, Interp
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FAdd ST, ST(4) ; 3w+u[3], x+3v[2], 3w, 3v, u, Interp
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FXCh ST(4) ; u, x+3v[2], 3w, 3v, 3w+u[3], Interp
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FAdd ST, ST ; 2u[3], x+3v[1], 3w, 3v, 3w+u[2], Interp
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FXCh ST(3) ; 3v, x+3v[1], 3w, 2u[3], 3w+u[2], Interp
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FLd ST(1) ; x+3v, 3v, x+3v, 3w, 2u[3], 3w+u[1], Interp
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FSub ST, ST(5) ; a[3], 3v, x+3v, 3w, 2u[2], 3w+u, Interp
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FXCh ; 3v, a[3], x+3v, 3w, 2u[2], 3w+u, Interp
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FAdd ST, ST ; 6v[3], a[2], x+3v, 3w, 2u[1], 3w+u, Interp
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FXCh ST(5) ; 3w+u, a[2], x+3v, 3w, 2u[1], 6v[3], Interp
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FAdd ST, ST(4) ; 3w+3u[3], a[1], x+3v, 3w, 2u, 6v[2], Interp
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FXCh ; a[1], 3w+3u[3], x+3v, 3w, 2u, 6v[2], Interp
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FMul ST, ST(6) ; ax[3], 3w+3u[2], x+3v, 3w, 2u, 6v[1], Interp
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FXCh ST(2) ; x+3v, 3w+3u[2], ax[3], 3w, 2u, 6v[1], Interp
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FAddP ST(4), ST ; 3w+3u[1], ax[2], 3w, 2u+F[3], 6v, Interp
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FSub ST, ST(4) ; 3w+3u-6v[3], ax[1], 3w, 2u+F[2], 6v, Interp
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FXCh ST(2) ; 3w, ax[1], b[3], 2u+F[1], 6v, Interp
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FAdd ST, ST ; 6w[3], ax, b[2], 2u+F, 6v, Interp
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FXCh ; ax, 6w[3], b[2], 2u+F, 6v, Interp
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FAddP ST(2), ST ; 6w[1], ax+b[3], 2u+f, d, Interp
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FSubRP ST(2), ST ; ax+b, c[3], d, Interp
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FMul ST, ST(3)
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FXCh ST(3) ; Interp, c[2], d, ax^2+bx[3]
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FMul Const1On6 ; sInterp[3], c, d, ax^2+bx[1]
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FXCh ; c, sInterp[3], d, ax^2+bx[1]
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FAddP ST(3), ST ; sInterp[2], d, ax^2+bx+c[3]
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FXCh ; d, sInterp[2], ax^2+bx+c[3]
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FMul Const1On6 ; sd[3], sInterp[1], ax^2+bx+c[2]
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FXCh ; sInterp[1], sd[3], ax^2+bx+c[2]
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FMulP ST(2), ST
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Pop DS
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Assume DS:Nothing
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Mov EDX, [DS:0]
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FAdd ; SampleValue (16 bit value)
|
||
|
||
FLd DWord Ptr [DS:0] ; x(k-1), x(k)
|
||
FMul DWord Ptr [DS:14h] ; b.x(k-1), x(k)
|
||
FLd DWord Ptr [DS:4] ; x(k-2), b.x(k-1), x(k)
|
||
FMul DWord Ptr [DS:18h] ; c.x(k-2), b.x(k-1), x(k)
|
||
FXCh ST(2) ; x(k), b.x(k-1), c.x(k-2)
|
||
FMul DWord Ptr [DS:10h] ; a.x(k), b.x(k-1), c.x(k-2)
|
||
FXCh ST(2) ; c.x(k-2), b.x(k-1), a.x(k)
|
||
FAdd
|
||
Mov EDX, [DS:0]
|
||
FAdd
|
||
|
||
Mov [DS:4], EDX
|
||
|
||
FSt DWord Ptr [DS:0]
|
||
FIStP CS:SampleValue
|
||
|
||
ELSE
|
||
FAdd ST, ST(2) ; x+3v, 3w, 3v, u, Interp
|
||
FLd ST(1) ; 3w, x+3v, 3w, 3v, u, Interp
|
||
FSub ST, ST(4) ; 3w-u, x+3v, 3w, 3v, u, Interp
|
||
FAdd ST, ST ; 6w-2u, x+3v, 3w, 3v, u, Interp
|
||
FSub ST, ST(1) ; "c", x+3v, 3w, 3v, u, Interp
|
||
FXCh ; x+3v, "c", 3w, 3v, u, Interp
|
||
FSub ST, ST(2) ; x+3v-3w, "c", 3w, 3v, u, Interp
|
||
FSub ST, ST(4) ; "a", "c", 3w, 3v, u, Interp
|
||
FMul ST, ST(5) ; "ax", "c", 3w, 3v, u, Interp
|
||
FXCh ST(3) ; 3v, "c", 3w, "ax", u, Interp
|
||
FAdd ST, ST ; 6v, "c", 3w, "ax", u, Interp
|
||
FXCh ST(4) ; u, "c", 3w, "ax", 6v, Interp
|
||
FMul Const3 ; 3u, "c", 3w, "ax", 6v, Interp
|
||
FSub ST, ST(4) ; 3u-6v, "c", 3w, "ax", 6v, Interp
|
||
FAdd ST, ST(2) ; "b", "c", 3w, "ax", 6v, Interp
|
||
FAdd ST, ST(3) ; "ax+b", "c", 3w, "ax", 6v, Interp
|
||
FMul ST, ST(5) ; "ax^2+bx", "c", 3w, "ax", 6v, Interp
|
||
FAdd ; ax^2+bx+c, 3w, "ax", 6v, Interp
|
||
FMulP ST(4), ST ; 3w, "ax", 6v, ax^3+bx^2+cx
|
||
FComPP ; 6v, ax^3+bx^2+cx
|
||
FAdd ; SampleValue
|
||
FMul Const1On6
|
||
|
||
Pop DS
|
||
Assume DS:Nothing
|
||
|
||
FMul DWord Ptr [DS:10h]
|
||
|
||
FLd DWord Ptr [DS:0] ; x(k-1), x(k)
|
||
FMul DWord Ptr [DS:14h] ; b.x(k-1), x(k)
|
||
FLd DWord Ptr [DS:4] ; x(k-2), b.x(k-1), x(k)
|
||
FMul DWord Ptr [DS:18h] ; c.x(k-2), b.x(k-1), x(k)
|
||
FAdd
|
||
Mov EDX, [DS:0]
|
||
FAdd
|
||
|
||
Mov [DS:4], EDX
|
||
|
||
FSt DWord Ptr [DS:0]
|
||
FIStP SampleValue
|
||
ENDIF
|
||
Pop EDX
|
||
|
||
IF FILTERCLIPPINGTYPENONE
|
||
ELSE
|
||
Mov EAX, [DS:0]
|
||
And EAX, 7FFFFFFFh
|
||
Cmp EAX, MAXFILTERVALUE
|
||
JBE X
|
||
|
||
IF FILTERCLIPPINGTYPECOMPRESSOR
|
||
|
||
Mov EBX, [DS:0]
|
||
FLd CS:Const22713_0
|
||
FLd DWord Ptr [DS:0]
|
||
FAbs
|
||
FMul CS:Const1On32768
|
||
FYL2X ; ST = ln(x/65536) / ln(2) * 65536 * ln(2)
|
||
FAdd CS:Const32768
|
||
SAR EBX, 31
|
||
FIStP SampleValue
|
||
Xor SampleValue, EBX
|
||
Sub SampleValue, EBX
|
||
|
||
Comment ~
|
||
Mov EBX, [DS:0]
|
||
FLd DWord Ptr [DS:0]
|
||
FAbs
|
||
FSub [CS:Const65536]
|
||
FMul [CS:ConstLimiter]
|
||
FAdd [CS:Const65536]
|
||
SAR EBX, 31
|
||
FIStP SampleValue
|
||
XOr SampleValue, EBX
|
||
Sub SampleValue, EBX
|
||
; FILD SampleValue
|
||
; FStP DWord Ptr [DS:0]
|
||
~
|
||
|
||
ENDIF
|
||
IF FILTERCLIPPINGTYPELIMIT
|
||
|
||
Mov EBX, [DS:0]
|
||
Mov EAX, MAXFILTERVALUE
|
||
And EBX, 80000000h
|
||
Or EAX, EBX
|
||
Mov [DS:0], EAX
|
||
ENDIF
|
||
X:
|
||
ENDIF
|
||
Mov EBX, SampleValue
|
||
|
||
ENDIF
|
||
|
||
IF QUADRATICINTERPOLATION
|
||
|
||
Push ECX
|
||
Push EDX
|
||
Push EBP
|
||
|
||
MovSX EDX, Word Ptr [ES:EDI+EDI+4] ; v
|
||
MovSX EBX, Word Ptr [ES:EDI+EDI] ; t
|
||
MovSX EAX, Word Ptr [ES:EDI+EDI+2] ; u
|
||
|
||
ShR ECX, 3 ; 0.13
|
||
LEA EBP, [EBX+EDX]
|
||
SAR EBP, 1
|
||
Sub EBP, EAX ; (v+t)/2 - u
|
||
IMul EBP, ECX ; 16.13
|
||
SAR EBP, 14 ; 15.0
|
||
|
||
Add EDX, EBX ; EDX = v+t
|
||
Add EBP, EAX ; EBP = ax+2u
|
||
LEA EDX, [EDX+EBX*2]
|
||
SAR EDX, 2 ; EDX = (3t+v)/2
|
||
Sub EBP, EDX ; ax + b, 15 form
|
||
|
||
IMul EBP, ECX ; ax^2+bx in 15.13 form
|
||
SAR EBP, 12 ; ax^2+bx in 16.0 form
|
||
|
||
Add EBX, EBP
|
||
|
||
Pop EBP
|
||
Pop EDX
|
||
Pop ECX
|
||
|
||
ENDIF
|
||
|
||
IF LINEARINTERPOLATION
|
||
MovSX EBX, Word Ptr [ES:EDI+EDI+2]
|
||
MovSX EAX, Word Ptr [ES:EDI+EDI]
|
||
Sub EBX, EAX
|
||
SAR EBX, 1
|
||
IMul EBX, ECX
|
||
SAR EBX, 15
|
||
Add EBX, EAX
|
||
ENDIF
|
||
|
||
IF POINTSAMPLED
|
||
MovSX EBX, Word Ptr [ES:EDI+EDI]
|
||
ENDIF
|
||
|
||
EndM
|
||
|
||
;<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 Mix32Stereo8Bit ; Given DS:SI = buffer
|
||
; Given ES:DI = sample
|
||
; AX = bytes to mix
|
||
; CX = error
|
||
; DX = delta offset
|
||
; BP = delta error
|
||
|
||
ShL AX, 3
|
||
Add AX, SI
|
||
Mov Word Ptr [CS:M32S8BEND], AX
|
||
|
||
Mix32Stereo8Bit1:
|
||
Get8BitWaveForm
|
||
|
||
M32S8BLVC EQU $+3
|
||
IMul EAX, EBX, 12345678h
|
||
Sub [SI], EAX
|
||
|
||
Mov CS:LastLeftValue, EAX
|
||
|
||
M32S8BRVC EQU $+3
|
||
IMul EAX, EBX, 12345678h
|
||
Sub [SI+4], EAX
|
||
|
||
Mov CS:LastRightValue, EAX
|
||
|
||
Add CX, BP
|
||
AdC DI, DX
|
||
Add SI, 8
|
||
|
||
M32S8BLVSet EQU $+2
|
||
Mov EAX, 12345678h ; Destination volume left
|
||
M32S8BRVSet EQU $+2
|
||
Mov EBX, 12345678h ; Destination volume right
|
||
|
||
Sub EAX, DWord Ptr [CS:M32S8BLVC] ; Delta
|
||
Sub EBX, DWord Ptr [CS:M32S8BRVC]
|
||
|
||
SAR EAX, RAMPSPEED
|
||
SAR EBX, RAMPSPEED
|
||
|
||
Add DWord Ptr [CS:M32S8BLVC], EAX
|
||
Add DWord Ptr [CS:M32S8BRVC], EBX
|
||
|
||
M32S8BNoRightRamp:
|
||
|
||
M32S8BEND EQU $+2
|
||
Cmp SI, 1234h
|
||
JNE Mix32Stereo8Bit1
|
||
|
||
Ret
|
||
|
||
EndP Mix32Stereo8Bit
|
||
|
||
;<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 PreM32SMix8Bit
|
||
|
||
IF VOLUMERAMP
|
||
PushAD
|
||
|
||
Xor EAX, EAX
|
||
Xor EBX, EBX
|
||
Xor EDX, EDX
|
||
Xor EBP, EBP
|
||
Xor EDI, EDI
|
||
|
||
Mov AX, Word Ptr [SI+0Ch] ; New right volume
|
||
Mov BX, Word Ptr [SI+0Eh] ; New left volume
|
||
|
||
Mov DX, Word Ptr [SI+1Ch] ; Old right volume
|
||
Mov BP, Word Ptr [SI+1Eh] ; Old left volume
|
||
|
||
Mov DWord Ptr [CS:M32S8BRVC], EDX
|
||
Mov DWord Ptr [CS:M32S8BLVC], EBP
|
||
|
||
; Compensate for upwards ramp.
|
||
|
||
Cmp AX, DX
|
||
JB PreM32Mix8BitNoRightCompensate
|
||
|
||
Add AX, RAMPCOMPENSATE
|
||
|
||
PreM32Mix8BitNoRightCompensate:
|
||
|
||
Cmp BX, BP
|
||
JB PreM32Mix8BitNoLeftCompensate
|
||
|
||
Add BX, RAMPCOMPENSATE
|
||
|
||
PreM32Mix8BitNoLeftCompensate:
|
||
Mov DWord Ptr [CS:M32S8BRVSet], EAX
|
||
Mov DWord Ptr [CS:M32S8BLVSet], EBX
|
||
|
||
; Now to figure out exact final volumes
|
||
|
||
Push SI
|
||
Mov CX, CS:RealBytesToMix
|
||
|
||
PreM32Mix8Bit1:
|
||
Mov ESI, EAX ; Set values
|
||
Mov EDI, EBX
|
||
Sub ESI, EDX ; Current values
|
||
Sub EDI, EBP
|
||
SAR ESI, RAMPSPEED
|
||
SAR EDI, RAMPSPEED
|
||
Add EDX, ESI
|
||
Add EBP, EDI
|
||
|
||
Loop PreM32Mix8Bit1
|
||
|
||
Pop SI
|
||
|
||
Mov Word Ptr [SI+1Ch], DX
|
||
Mov Word Ptr [SI+1Eh], BP
|
||
|
||
PopAD
|
||
Ret
|
||
ELSE
|
||
|
||
Xor EAX, EAX
|
||
Xor EBX, EBX
|
||
|
||
Mov AX, Word Ptr [SI+0Ch]
|
||
Mov BX, Word Ptr [SI+0Eh]
|
||
|
||
Mov DWord Ptr [CS:M32S8BRVC], EAX
|
||
Mov DWord Ptr [CS:M32S8BLVC], EBX
|
||
|
||
Mov DWord Ptr [CS:M32S8BRVSet], EAX
|
||
Mov DWord Ptr [CS:M32S8BLVSet], EBX
|
||
|
||
Mov [SI+1Ch], AX
|
||
Mov [SI+1Eh], BX
|
||
|
||
Ret
|
||
ENDIF
|
||
|
||
EndP PreM32SMix8Bit
|
||
|
||
;<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 Mix32Surround8Bit ; Given DS:SI = buffer
|
||
; Given ES:DI = sample
|
||
; AX = bytes to mix
|
||
; CX = error
|
||
; DX = delta offset
|
||
; BP = delta error
|
||
|
||
ShL AX, 3
|
||
Add AX, SI
|
||
Mov Word Ptr [CS:M32U8BEND], AX
|
||
|
||
Mix32Surround8Bit1:
|
||
Get8BitWaveForm
|
||
|
||
M32U8BLVC EQU $+3
|
||
IMul EAX, EBX, 12345678h
|
||
Sub [SI], EAX
|
||
Mov CS:LastLeftValue, EAX
|
||
|
||
Neg EAX
|
||
M32U8BLVSet EQU $+2
|
||
Mov EBX, 12345678h
|
||
|
||
Sub [SI+4], EAX
|
||
Sub EBX, DWord Ptr [CS:M32U8BLVC]
|
||
|
||
|
||
SAR EBX, RAMPSPEED
|
||
Add SI, 8
|
||
|
||
Add CX, BP
|
||
AdC DI, DX
|
||
|
||
Add DWord Ptr [CS:M32U8BLVC], EBX
|
||
|
||
M32U8BEND EQU $+2
|
||
Cmp SI, 1234h
|
||
JNE Mix32Surround8Bit1
|
||
|
||
Mov EAX, CS:LastLeftValue
|
||
Neg EAX
|
||
Mov CS:LastRightValue, EAX
|
||
Ret
|
||
|
||
EndP Mix32Surround8Bit
|
||
|
||
;<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 PreM32UMix8Bit
|
||
|
||
IF VOLUMERAMP
|
||
Xor EAX, EAX
|
||
Xor EBX, EBX
|
||
Mov AX, Word Ptr [SI+1Eh] ; Old
|
||
Mov BX, Word Ptr [SI+0Eh] ; New
|
||
Mov DWord Ptr [CS:M32U8BLVC], EAX
|
||
|
||
; Compensate for upwards ramp.
|
||
|
||
Cmp BX, AX
|
||
JB PreM32MixU8Bit2
|
||
|
||
Add BX, RAMPCOMPENSATE
|
||
|
||
PreM32MixU8Bit2:
|
||
Mov DWord Ptr [CS:M32U8BLVSet], EBX
|
||
|
||
Mov CX, CS:RealBytesToMix
|
||
|
||
PreM32UMix8Bit1:
|
||
Mov EDX, EBX
|
||
Sub EDX, EAX
|
||
SAR EDX, RAMPSPEED
|
||
Add EAX, EDX
|
||
|
||
Loop PreM32UMix8Bit1
|
||
|
||
Mov [SI+1Eh], AX
|
||
Ret
|
||
|
||
ELSE
|
||
Xor EAX, EAX
|
||
Mov AX, Word Ptr [SI+0Eh]
|
||
Mov DWord Ptr [CS:M32U8BLVC], EAX
|
||
Mov DWord Ptr [CS:M32U8BLVSet], EAX
|
||
Mov [SI+1Eh], AX
|
||
|
||
Ret
|
||
ENDIF
|
||
|
||
EndP PreM32UMix8Bit
|
||
|
||
;<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 Mix32Stereo16Bit
|
||
|
||
ShL AX, 3
|
||
Add AX, SI
|
||
Mov Word Ptr [CS:M32S16BEND], AX
|
||
|
||
Mix32Stereo16Bit1:
|
||
Get16BitWaveform
|
||
|
||
M32S16BLVC EQU $+3
|
||
IMul EAX, EBX, 12345678h
|
||
Sub [SI], EAX
|
||
|
||
Mov CS:LastLeftValue, EAX
|
||
|
||
M32S16BRVC EQU $+3
|
||
IMul EAX, EBX, 12345678h
|
||
Sub [SI+4], EAX
|
||
|
||
Mov CS:LastRightValue, EAX
|
||
|
||
Add CX, BP
|
||
AdC DI, DX
|
||
|
||
M32S16BLVSet EQU $+2
|
||
Mov EAX, 12345678h ; Destination volume left
|
||
M32S16BRVSet EQU $+2
|
||
Mov EBX, 12345678h ; Destination volume right
|
||
|
||
Sub EAX, DWord Ptr [CS:M32S16BLVC] ; Delta
|
||
Sub EBX, DWord Ptr [CS:M32S16BRVC]
|
||
|
||
SAR EAX, RAMPSPEED
|
||
SAR EBX, RAMPSPEED
|
||
|
||
Add DWord Ptr [CS:M32S16BLVC], EAX
|
||
Add DWord Ptr [CS:M32S16BRVC], EBX
|
||
|
||
Add SI, 8
|
||
|
||
M32S16BEND EQU $+2
|
||
Cmp SI, 1234h
|
||
JNE Mix32Stereo16Bit1
|
||
|
||
Ret
|
||
|
||
EndP Mix32Stereo16Bit
|
||
|
||
;<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 PreM32SMix16Bit
|
||
|
||
IF VOLUMERAMP
|
||
PushAD
|
||
|
||
Xor EAX, EAX
|
||
Xor EBX, EBX
|
||
Xor EDX, EDX
|
||
Xor EBP, EBP
|
||
Xor EDI, EDI
|
||
|
||
Mov AX, Word Ptr [SI+0Ch] ; New right volume
|
||
Mov BX, Word Ptr [SI+0Eh] ; New left volume
|
||
|
||
Mov DX, Word Ptr [SI+1Ch] ; Old right volume
|
||
Mov BP, Word Ptr [SI+1Eh] ; Old left volume
|
||
|
||
Mov DWord Ptr [CS:M32S16BRVC], EDX
|
||
Mov DWord Ptr [CS:M32S16BLVC], EBP
|
||
|
||
; Compensate for upwards ramp.
|
||
|
||
Cmp AX, DX
|
||
JB PreM32Mix16BitNoRightCompensate
|
||
|
||
Add AX, RAMPCOMPENSATE
|
||
|
||
PreM32Mix16BitNoRightCompensate:
|
||
|
||
Cmp BX, BP
|
||
JB PreM32Mix16BitNoLeftCompensate
|
||
|
||
Add BX, RAMPCOMPENSATE
|
||
|
||
PreM32Mix16BitNoLeftCompensate:
|
||
Mov DWord Ptr [CS:M32S16BRVSet], EAX
|
||
Mov DWord Ptr [CS:M32S16BLVSet], EBX
|
||
|
||
; Now to figure out exact final volumes
|
||
|
||
Push SI
|
||
Mov CX, CS:RealBytesToMix
|
||
|
||
PreM32Mix16Bit1:
|
||
Mov ESI, EAX ; Set values
|
||
Mov EDI, EBX
|
||
|
||
Sub ESI, EDX ; Current values
|
||
Sub EDI, EBP
|
||
|
||
SAR ESI, RAMPSPEED
|
||
SAR EDI, RAMPSPEED
|
||
|
||
Add EDX, ESI
|
||
Add EBP, EDI
|
||
|
||
Loop PreM32Mix16Bit1
|
||
Pop SI
|
||
|
||
Mov Word Ptr [SI+1Ch], DX
|
||
Mov Word Ptr [SI+1Eh], BP
|
||
|
||
PopAD
|
||
Ret
|
||
ELSE
|
||
|
||
Xor EAX, EAX
|
||
Xor EBX, EBX
|
||
|
||
Mov AX, Word Ptr [SI+0Ch]
|
||
Mov BX, Word Ptr [SI+0Eh]
|
||
|
||
Mov DWord Ptr [CS:M32S16BRVC], EAX
|
||
Mov DWord Ptr [CS:M32S16BLVC], EBX
|
||
|
||
Mov DWord Ptr [CS:M32S16BRVSet], EAX
|
||
Mov DWord Ptr [CS:M32S16BLVSet], EBX
|
||
|
||
Mov [SI+1Ch], AX
|
||
Mov [SI+1Eh], BX
|
||
|
||
Ret
|
||
ENDIF
|
||
|
||
EndP PreM32SMix16Bit
|
||
|
||
;<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 Mix32Surround16Bit ; Given DS:SI = buffer
|
||
; Given ES:DI = sample
|
||
; AX = bytes to mix
|
||
; CX = error
|
||
; DX = delta offset
|
||
; BP = delta error
|
||
|
||
ShL AX, 3
|
||
Add AX, SI
|
||
Mov Word Ptr [CS:M32U16BEND], AX
|
||
|
||
Mix32Surround16Bit1:
|
||
Get16BitWaveForm
|
||
|
||
M32U16BLVC EQU $+3
|
||
IMul EAX, EBX, 12345678h
|
||
Sub [SI], EAX
|
||
|
||
M32U16BLVSet EQU $+2
|
||
Mov EBX, 12345678h
|
||
|
||
Neg EAX
|
||
Sub EBX, DWord Ptr [CS:M32U16BLVC]
|
||
|
||
Sub [SI+4], EAX
|
||
|
||
SAR EBX, RAMPSPEED
|
||
Add SI, 8
|
||
|
||
Add CX, BP
|
||
AdC DI, DX
|
||
|
||
Add DWord Ptr [CS:M32U16BLVC], EBX
|
||
|
||
M32U16BEND EQU $+2
|
||
Cmp SI, 1234h
|
||
JNE Mix32Surround16Bit1
|
||
|
||
Mov CS:LastRightValue, EAX
|
||
Neg EAX
|
||
Mov CS:LastLeftValue, EAX
|
||
Ret
|
||
|
||
EndP Mix32Surround16Bit
|
||
|
||
;<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 PreM32UMix16Bit
|
||
|
||
IF VOLUMERAMP
|
||
Xor EAX, EAX
|
||
Xor EBX, EBX
|
||
Mov AX, Word Ptr [SI+1Eh]
|
||
Mov BX, Word Ptr [SI+0Eh]
|
||
Mov DWord Ptr [CS:M32U16BLVC], EAX
|
||
|
||
; Compensate for upwards ramp.
|
||
|
||
Cmp BX, AX
|
||
JB PreM32MixU16Bit2
|
||
|
||
Add BX, RAMPCOMPENSATE
|
||
|
||
PreM32MixU16Bit2:
|
||
|
||
Mov DWord Ptr [CS:M32U16BLVSet], EBX
|
||
|
||
Mov CX, CS:RealBytesToMix
|
||
|
||
PreM32UMix16Bit1:
|
||
Mov EDX, EBX
|
||
Sub EDX, EAX
|
||
SAR EDX, RAMPSPEED
|
||
Add EAX, EDX
|
||
|
||
Loop PreM32UMix16Bit1
|
||
|
||
Mov [SI+1Eh], AX
|
||
Ret
|
||
|
||
ELSE
|
||
Xor EAX, EAX
|
||
Mov AX, Word Ptr [SI+0Eh]
|
||
Mov DWord Ptr [CS:M32U16BLVC], EAX
|
||
Mov DWord Ptr [CS:M32U16BLVSet], EAX
|
||
Mov [SI+1Eh], AX
|
||
Ret
|
||
ENDIF
|
||
|
||
EndP PreM32UMix16Bit
|
||
|
||
;<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>
|
||
|
||
NUMBEROFFILTERBANDS EQU 4
|
||
|
||
ALIGN 4
|
||
LastClickRemovalLeft DD 0
|
||
LastClickRemovalRight DD 0
|
||
StartingChannelOffset DW 0
|
||
FilterParameters DB 64 Dup (7Fh), 64 Dup (0)
|
||
FilterValues DD 4*256 Dup (0)
|
||
SampleFilterCopyOffset DW 16*64
|
||
FreqMultiplier DD 3A9F7867h ; = 1/(2*PI*110.0*2^0.25)
|
||
FreqParameterMultiplier DD 0B92AAAAAh ; = -1/(24*256)
|
||
FilterFreqValue DW 0
|
||
NewControlWord DW 7Fh
|
||
include q.inc
|
||
|
||
LastFilter DD NUMBEROFFILTERBANDS*2 Dup (0) ; 4 stereo values
|
||
FilterCoefficients DD NUMBEROFFILTERBANDS*2 Dup (0)
|
||
FilterVolumes DD NUMBEROFFILTERBANDS Dup (0)
|
||
|
||
;<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 IsSampleMode ; returns zero flag if sample mode.
|
||
|
||
Push DS
|
||
|
||
Mov DS, CS:SongDataArea
|
||
Test Byte Ptr [DS:2Ch], 4
|
||
|
||
Pop DS
|
||
Ret
|
||
|
||
EndP IsSampleMode
|
||
Assume DS:Nothing
|
||
|
||
;<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 M32MixHandler
|
||
; Clear output buffer first...
|
||
|
||
Mov CS:StartingChannelOffset, SI
|
||
|
||
Push CX
|
||
|
||
Mov ES, CS:MixSegment
|
||
Mov EAX, CS:BytesToMixFractional
|
||
Mov CX, CS:BytesToMix
|
||
Add CurrentFractional, EAX
|
||
AdC CX, 0
|
||
Mov CS:RealBytestoMix, CX
|
||
; Add CX, CX ; Stereo = 2 * BytesToMix
|
||
; Mov DI, 32
|
||
; Xor EAX, EAX
|
||
; Rep StosD
|
||
|
||
Pop CX
|
||
|
||
PushAD
|
||
|
||
Mov EDX, CS:LastClickRemovalLeft
|
||
Mov EBP, CS:LastClickRemovalRight
|
||
|
||
; Do left first.
|
||
Mov SI, 80
|
||
Mov CX, CS:RealBytesToMix
|
||
|
||
ClickRemoval3:
|
||
|
||
Comment ~
|
||
|
||
Mov [ES:SI], EDX
|
||
Mov [ES:SI+4], EBP
|
||
|
||
Inc EDX
|
||
JS ClickRemoval4
|
||
|
||
Sub EDX, 2
|
||
JGE ClickRemoval4
|
||
|
||
Inc EDX
|
||
|
||
ClickRemoval4:
|
||
Inc EBP
|
||
JS ClickRemoval5
|
||
|
||
Sub EBP, 2
|
||
JGE ClickRemoval5
|
||
|
||
Inc EBP
|
||
|
||
ClickRemoval5:
|
||
~
|
||
|
||
Mov EAX, EDX
|
||
Mov EBX, EBP
|
||
SAR EAX, 12
|
||
SAR EBX, 12
|
||
Mov [ES:SI], EDX
|
||
Mov [ES:SI+4], EBP
|
||
|
||
Sub EAX, 1
|
||
AdC EAX, 1
|
||
Sub EBX, 1
|
||
AdC EBX, 1
|
||
|
||
Sub EDX, EAX
|
||
Sub EBP, EBX
|
||
|
||
Add SI, 8
|
||
Loop ClickRemoval3
|
||
|
||
Mov CS:LastClickRemovalLeft, EDX
|
||
Mov CS:LastClickRemovalRight, EBP
|
||
|
||
PopAD
|
||
|
||
; Check each channel...
|
||
; Prepare mixing stuff
|
||
|
||
; Work backwards
|
||
Mov AX, CX
|
||
Dec AX
|
||
ShL AX, 7
|
||
Add SI, AX
|
||
|
||
M32MixHandler1:
|
||
Test Byte Ptr [SI], 1
|
||
JZ M32MixHandlerEnd2
|
||
Cmp Byte Ptr [SI+36h], 100
|
||
JE M32MixHandlerEnd2
|
||
|
||
Push CX
|
||
Mov BP, SI
|
||
Sub BP, [CS:StartingChannelOffset] ; BP = SlaveChannel*128
|
||
SHR BP, 3 ; BP = SlaveChannel*16
|
||
Mov DI, BP
|
||
Add BP, Offset FilterValues
|
||
|
||
Mov CX, [SI]
|
||
Test CH, 2
|
||
JZ M32MixHandler13
|
||
|
||
; Note cut.
|
||
And Byte Ptr [SI], Not 1 ; Turn off channel
|
||
Mov Word Ptr [SI+4Ah], 0
|
||
Or CL, 40h
|
||
|
||
M32MixHandler13:
|
||
Test CL, 20h ; New freq?
|
||
JZ M32MixHandler3
|
||
|
||
Mov AX, [SI+10h]
|
||
Mov DX, [SI+12h]
|
||
Mov BX, MixSpeed
|
||
Cmp DX, BX
|
||
JAE M32MixHandlerError
|
||
|
||
Div BX
|
||
ShL EAX, 16
|
||
Xor AX, AX
|
||
Div BX
|
||
Mov STEPVALUE, EAX
|
||
|
||
M32MixHandler3:
|
||
Test CH, 1 ; New note?
|
||
JZ M32MixHandler12
|
||
|
||
Xor EAX, EAX
|
||
Mov DWord Ptr [SI+1Ch], EAX
|
||
Mov DWord Ptr [CS:BP], EAX
|
||
Mov DWord Ptr [CS:BP+4], EAX
|
||
Mov DWord Ptr [CS:BP+8], 3F800000h
|
||
Mov DWord Ptr [CS:BP+0Ch], EAX
|
||
|
||
M32MixHandler12:
|
||
Test CX, 8440h ; New volume, loop or pan?
|
||
JZ M32MixHandler4
|
||
|
||
Mov AL, [SI+3Ah]
|
||
Test AL, AL
|
||
JNS M32MixHandlerFilter1
|
||
|
||
Mov BL, [SI+3Fh]
|
||
Jmp M32MixHandlerFilter2
|
||
|
||
M32MixHandlerFilter1:
|
||
Mov DI, AX
|
||
And DI, 63
|
||
Add DI, Offset FilterParameters
|
||
|
||
Mov AL, [CS:DI]
|
||
Mov BL, [CS:DI+64]
|
||
Mov [SI+5Bh], AL
|
||
Mov [SI+3Fh], BL
|
||
|
||
M32MixHandlerFilter2:
|
||
Mov AL, [SI+3Eh]
|
||
Mul Byte Ptr [SI+5Bh]
|
||
Mov CS:FilterFreqValue, AX
|
||
ShR AX, 8
|
||
Mov AH, BL
|
||
AdC AX, 0
|
||
|
||
Cmp AX, 7Fh
|
||
JE M32MixHandlerNoFilter
|
||
|
||
And BX, 0FFh
|
||
ShL BX, 2
|
||
|
||
FNInit
|
||
FLdCW [CS:NewControlWord]
|
||
|
||
FILD [CS:FilterFreqValue] ; 0->127*256
|
||
FMul [CS:FreqParameterMultiplier] ; -i/(24*256)
|
||
FLd ST
|
||
FRndInt
|
||
FSub ST(1), ST
|
||
FXCh
|
||
F2XM1
|
||
FLd1
|
||
FAdd
|
||
FScale ; = 2^(i/24*256)
|
||
FMul [CS:FreqMultiplier] ; = r
|
||
FLd ST ; r, r
|
||
FMul ST(1), ST ; r, r^2
|
||
|
||
FLd [CS:QualityFactorTable+BX] ; 2d, r, r^2
|
||
FMul ST(1), ST ; 2d, 2dr, r^2
|
||
FLd1 ; 1, 2d, 2dr, r^2
|
||
FSubP ST(1), ST ; 2d-1, 2dr, r^2
|
||
FAdd
|
||
|
||
FLd1 ; 1, d, e
|
||
FAdd ST, ST(1)
|
||
FAdd ST, ST(2) ; 1+d+e, d, e
|
||
FLd1 ; 1, 1+d+e, d, e
|
||
FDivRP ST(1), ST ; 1/(1+d+e), d, e
|
||
FSt DWord Ptr [CS:BP+8]
|
||
FXCh ; d, 1/(1+d+e), e
|
||
FAdd ST, ST(2)
|
||
FAddP ST(2), ST ; 1/(1+d+e), d+2e
|
||
FMul
|
||
FStP DWord Ptr [CS:BP+0Ch]
|
||
FStP ST
|
||
|
||
M32MixHandlerNoFilter:
|
||
|
||
IF REGISTERED
|
||
Test CH, 8
|
||
JNZ M32MixHandler7
|
||
|
||
Cmp CS:Stereo, 0
|
||
JE M32MixHandler6
|
||
|
||
Mov AL, [SI+37h] ; Final pan
|
||
Cmp AL, 100
|
||
JE M32MixHandler6
|
||
|
||
Mul Byte Ptr MixVolume
|
||
Mul Word Ptr [SI+4Ah]
|
||
SHRD AX, DX, 14
|
||
|
||
Mov [SI+0Ch], AX ; Store into right volume
|
||
|
||
Mov AL, 64 ; Do left volume
|
||
Sub AL, [SI+37h] ; AL = 64-FinalPan
|
||
Mul Byte Ptr MixVolume
|
||
Mul Word Ptr [SI+4Ah] ; Final volume
|
||
SHRD AX, DX, 14
|
||
Mov [SI+0Eh], AX
|
||
|
||
; Now to decide on mixing method
|
||
Cmp DWord Ptr [SI+0Ch], 0
|
||
JNE M32MixHandler5
|
||
ELSE
|
||
Test CH, 8
|
||
JZ M32MixHandler6
|
||
|
||
ENDIF
|
||
|
||
M32MixHandler7:
|
||
; Zero volume
|
||
Xor EAX, EAX
|
||
Mov [SI+0Ch], EAX
|
||
Cmp [SI+1Ch], EAX ; Last volumes = 0?
|
||
JE M32MixHandler8
|
||
|
||
M32MixHandler5: ; Other.. (ie. panned)
|
||
Mov AX, 30
|
||
Jmp M32MixHandler8
|
||
|
||
M32MixHandler6: ; Surround sound
|
||
Mov AX, [SI+4Ah]
|
||
Mul MixVolume
|
||
|
||
IF REGISTERED
|
||
ShRD AX, DX, 8
|
||
Cmp CS:Stereo, 0
|
||
JE M32MixHandlerHalfStereoVolume
|
||
|
||
ShR AX, 1
|
||
|
||
M32MixHandlerHalfStereoVolume:
|
||
|
||
ELSE
|
||
|
||
ShRD AX, DX, 9
|
||
ENDIF
|
||
|
||
Mov [SI+0Ch], AX
|
||
Mov [SI+0Eh], AX
|
||
|
||
Test AX, AX
|
||
JNZ M32MixHandlerSurround1
|
||
|
||
Cmp DWord Ptr [SI+1Ch], 0
|
||
JE M32MixHandler7
|
||
|
||
M32MixHandlerSurround1:
|
||
Mov AX, 60
|
||
|
||
M32MixHandler8:
|
||
Mov BL, [SI+0Ah]
|
||
Test Byte Ptr [SI+18h], 2
|
||
JZ M32MixHandler9
|
||
|
||
Add AX, 90
|
||
|
||
M32MixHandler9:
|
||
Cmp BL, 8
|
||
JB M32MixHandler11 ; No loop
|
||
JE M32MixHandler10
|
||
|
||
Add AX, 10
|
||
|
||
M32MixHandler10:
|
||
Add AX, 10
|
||
|
||
M32MixHandler11:
|
||
Add AX, Offset WAVMixingTable
|
||
Mov [SI+8], AX ; Offset...
|
||
|
||
M32MixHandler4:
|
||
; Mixing routine call...
|
||
Mov BX, [SI+8] ; BX = offset into
|
||
Mov EAX, [CS:BX+2]
|
||
Mov DWord Ptr PreMixFunction, EAX
|
||
Mov EAX, [CS:BX+6]
|
||
Mov DWord Ptr MixFunctionSeparateBackwards, EAX
|
||
|
||
Mov AX, RealBytesToMix
|
||
Mov MixBlockSize, AX
|
||
Mov MixBufferOffset, 80
|
||
|
||
Mov EAX, CURRENTPOSITION
|
||
Mov OLDPOSITION, EAX
|
||
|
||
Cmp CS:StartNoRamp, 0
|
||
JE NoStartRamp
|
||
|
||
Test CH, 1
|
||
JZ NoStartRamp
|
||
Cmp DWord Ptr [SI+4Ch], 0
|
||
JNE NoStartRamp
|
||
|
||
Mov EAX, [SI+0Ch]
|
||
Mov [SI+1Ch], EAX
|
||
|
||
NoStartRamp:
|
||
|
||
Mov ES, CS:MixSegment ; Get filter data
|
||
Mov EAX, [CS:BP] ; Last sample 1
|
||
Mov EDX, [CS:BP+4] ; Last sample 2
|
||
Mov [ES:0], EAX
|
||
Mov [ES:4], EDX
|
||
Mov EAX, [CS:BP+8] ; Filtera
|
||
Mov EDX, [CS:BP+0Ch] ; Filterb
|
||
Mov [ES:10h], EAX
|
||
Mov [ES:14h], EDX
|
||
FLd1
|
||
FSub DWord Ptr [ES:10h]
|
||
FSub DWord Ptr [ES:14h]
|
||
FStP DWord Ptr [ES:18h] ; Filterc
|
||
|
||
Push BP
|
||
Call Word Ptr [CS:BX]
|
||
Pop BP
|
||
|
||
Mov ES, CS:MixSegment ; Store filter data
|
||
Mov EAX, [ES:0]
|
||
Mov EDX, [ES:4]
|
||
Mov [CS:BP], EAX
|
||
Mov [CS:BP+4], EDX
|
||
|
||
And Word Ptr [SI], 0111100010001101b
|
||
|
||
Call IsSampleMode
|
||
JNE M32MixHandlerEnd
|
||
|
||
Mov [CS:BP+16*64], EAX
|
||
Mov [CS:BP+16*64+4], EDX
|
||
Mov EAX, [CS:BP+8]
|
||
Mov EDX, [CS:BP+0Ch]
|
||
Mov [CS:BP+16*64+8], EAX
|
||
Mov [CS:BP+16*64+0Ch], EDX
|
||
|
||
Jmp M32MixHandlerEnd
|
||
|
||
M32MixHandlerError:
|
||
Mov Word Ptr [SI], 200h
|
||
|
||
Test Byte Ptr [SI+3Ah], 80h
|
||
JNZ M32MixHandlerEnd
|
||
|
||
Mov BX, [SI+38h]
|
||
And Byte Ptr [BX], Not 4 ; Turn off channel
|
||
|
||
M32MixHandlerEnd:
|
||
Pop CX
|
||
|
||
M32MixHandlerEnd2:
|
||
Sub SI, 128
|
||
Dec CX
|
||
JNZ M32MixHandler1
|
||
|
||
Push CS
|
||
Pop DS
|
||
Assume DS:Driver
|
||
|
||
Xor DI, DI
|
||
Mov SI, Offset LastFilter
|
||
Mov CX, 80/4
|
||
Mov ES, MixSegment
|
||
|
||
Rep MovsD
|
||
|
||
; Now do filtering.
|
||
FNInit
|
||
Mov CX, RealBytesToMix
|
||
|
||
Push ES
|
||
Pop DS
|
||
Assume DS:Nothing
|
||
|
||
Mov SI, 80
|
||
|
||
OutputFilter1:
|
||
FILD DWord Ptr [SI] ; Left sample
|
||
FILD DWord Ptr [SI+4] ; R, L
|
||
|
||
FLd DWord Ptr [DS:20h] ; LB, R, L
|
||
FMul ST, ST(2) ; L.LB, R, L
|
||
FLd DWord Ptr [DS:20h] ; LB, L.LB, R, L
|
||
FMul ST, ST(2) ; R.LB, L.LB, R, L
|
||
FLd DWord Ptr [DS:0] ; OL, R.LB, L.LB, R, L
|
||
FMul DWord Ptr [DS:24h] ; OL.LB, R.LB, L.LB, R, L
|
||
FLd DWord Ptr [DS:4] ; OR, OL.LB, R.LB, L.LB, R, L
|
||
FMul DWord Ptr [DS:24h] ; OR.LB, OL.LB, R.LB, L.LB, R, L
|
||
|
||
FXCh ; OL.LB, OR.LB, R.LB, L.LB, R, L
|
||
FAddP ST(3), ST
|
||
FAdd ; RLB, LLB, R, L
|
||
|
||
FLd DWord Ptr [DS:28h] ; MB, RLB, LLB, R, L
|
||
FMul ST, ST(4) ; L.MB, RLB, LLB, R, L
|
||
FLd DWord Ptr [DS:28h] ; MB, L.MB, RLB, LLB, R, L
|
||
FMul ST, ST(4) ; R.MB, L.MB, RLB, LLB, R, L
|
||
FLd DWord Ptr [DS:8] ; OL, R.MB, L.MB, RLB, LLB, R, L
|
||
FMul DWord Ptr [DS:2Ch] ; OL.MB, R.MB, L.MB, RLB, LLB, R, L
|
||
FLd DWord Ptr [DS:0Ch] ; OR, OL.MB, R.MB, L.MB, RLB, LLB, R, L
|
||
FMul DWord Ptr [DS:2Ch] ; OR.MB, OL.MB, R.MB, L.MB, RLB, LLB, R, L
|
||
|
||
FXCh ; OL.MB, OR.MB, R.MB, L.MB, RLB, LLB, R, L
|
||
FAddP ST(3), ST
|
||
FAdd ; RMB, LMB, RLB, LLB, R, L
|
||
FXCh ST(3) ; LLB, LMB, RLB, RMB, R, L
|
||
FStP DWord Ptr [DS:0]
|
||
FStP DWord Ptr [DS:8]
|
||
FStP DWord Ptr [DS:4]
|
||
FStP DWord Ptr [DS:0Ch]
|
||
|
||
FLd DWord Ptr [DS:30h]
|
||
FMul ST, ST(2)
|
||
FLd DWord Ptr [DS:30h]
|
||
FMul ST, ST(2)
|
||
FLd DWord Ptr [DS:10h]
|
||
FMul DWord Ptr [DS:34h]
|
||
FLd DWord Ptr [DS:14h]
|
||
FMul DWord Ptr [DS:34h]
|
||
|
||
FXCh
|
||
FAddP ST(3), ST
|
||
FAdd
|
||
|
||
FLd DWord Ptr [DS:38h]
|
||
FMul ST, ST(4)
|
||
FLd DWord Ptr [DS:38h]
|
||
FMul ST, ST(4)
|
||
FLd DWord Ptr [DS:18h]
|
||
FMul DWord Ptr [DS:3Ch]
|
||
FLd DWord Ptr [DS:1Ch]
|
||
FMul DWord Ptr [DS:3Ch]
|
||
|
||
FXCh
|
||
FAddP ST(3), ST
|
||
FAdd
|
||
FXCh ST(3)
|
||
FStP DWord Ptr [DS:10h]
|
||
FStP DWord Ptr [DS:18h]
|
||
FStP DWord Ptr [DS:14h]
|
||
FStP DWord Ptr [DS:1Ch] ; R, L
|
||
|
||
; For each one, output value += ((band value) - (previous band value)) * Volume
|
||
|
||
FLd DWord Ptr [DS:18h]
|
||
FSub DWord Ptr [DS:10h] ; L4, R, L
|
||
FLd DWord Ptr [DS:1Ch]
|
||
FSub DWord Ptr [DS:14h] ; R4, L4, R, L
|
||
FLd DWord Ptr [DS:10h]
|
||
FSub DWord Ptr [DS:8]
|
||
FLd DWord Ptr [DS:14h]
|
||
FSub DWord Ptr [DS:0Ch] ; R3, L3, R4, L4, R, L
|
||
FLd DWord Ptr [DS:8]
|
||
FSub DWord Ptr [DS:0]
|
||
FLd DWord Ptr [DS:0Ch]
|
||
FSub DWord Ptr [DS:4] ; R2, L2, R3, L3, R4, L4, R, L
|
||
FXCh ST(5) ; L4, L2, R3, L3, R4, R2, R, L
|
||
FMul DWord Ptr [DS:4Ch] ; L4V, L2, R3, L3, R4, R2, R, L
|
||
FXCh ST(4) ; R4, L2, R3, L3, L4V, R2, R, L
|
||
FMul DWord Ptr [DS:4Ch] ; R4V, L2, R3, L3, L4V, R2, R, L
|
||
FXCh ST(3) ; L3, L2, R3, R4V, L4V, R2, R, L
|
||
FMul DWord Ptr [DS:48h] ; L3V, L2, R3, R4V, L4V, R2, R, L
|
||
FXCh ST(2) ; R3, L2, L3V, R4V, L4V, R2, R, L
|
||
FMul DWord Ptr [DS:48h] ; R3V, L2, L3V, R4V, L4V, R2, R, L
|
||
FXCh ; L2, R3V, L3V, R4V, L4V, R2, R, L
|
||
FMul DWord Ptr [DS:44h] ; L2V, R3V, L3V, R4V, L4V, R2, R, L
|
||
FXCh ST(5) ; R2, R3V, L3V, R4V, L4V, L2V, R, L
|
||
FMul DWord Ptr [DS:44h] ; R2V, R3V, L3V, R4V, L4V, L2V, R, L
|
||
FXCh ST(4) ; L4V, R3V, L3V, R4V, R2V, L2V, R, L
|
||
FAddP ST(7), ST ; R3V, L3V, R4V, R2V, L2V, R, L
|
||
FAddP ST(5), ST ; L3V, R4V, R2V, L2V, R, L
|
||
FAddP ST(3), ST
|
||
FAdd
|
||
FLd DWord Ptr [DS:0]
|
||
FMul DWord Ptr [DS:40h] ; L1V, RV, LV, R, L
|
||
FLd DWord Ptr [DS:4] ;
|
||
FMul DWord Ptr [DS:40h] ; R1V, L1V, RV, LV, R, L
|
||
FXCh ST(2) ; RV, L1V, R1V, LV, R, L
|
||
FAddP ST(4), ST ; L1V, R1V, LV, R, L
|
||
FAddP ST(4), ST ; R1V, LV, R, L
|
||
FAddP ST(2), ST
|
||
FAddP ST(2), ST
|
||
|
||
FIStP DWord Ptr [SI+4]
|
||
FIStP DWord Ptr [SI]
|
||
|
||
Add SI, 8
|
||
Dec CX
|
||
JNZ OutputFilter1
|
||
|
||
; Transfer contents out
|
||
Push CS
|
||
Pop ES
|
||
|
||
Mov DI, Offset LastFilter
|
||
Xor SI, SI
|
||
Mov CX, 32/4
|
||
|
||
Rep MovsD
|
||
; Finished output filtering!
|
||
|
||
Ret
|
||
|
||
EndP M32MixHandler
|
||
|
||
;<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>
|