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Cubic Spline Sound Interpolation [from AntiResonance]

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This commit is contained in:
zsknight
2001-04-15 08:08:44 +00:00
parent 015fdf1070
commit cd685a23e0
1 changed files with 178 additions and 10 deletions
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188
zsnes/src/cpu/dspproc.asm
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@@ -130,6 +130,7 @@ EXTSYM NoiseData,SoundCompD,Voice0Disable,csounddisable,dssel,spcRamcmp
EXTSYM cfgecho,Surround,SoundBufEn
EXTSYM echobuf
EXTSYM LowPassFilter
EXTSYM UseCubicSpline
NEWSYM DspProcAsmStart
@@ -173,7 +174,10 @@ tempstuff db 0
ALIGN32
DSPInterP:
times 512 dw 0
times 1024 dw 0
Gaussian:
dw 1305,1305,1304,1304,1304,1304,1304,1303
dw 1303,1303,1302,1302,1301,1300,1300,1299
dw 1298,1297,1297,1296,1295,1294,1293,1292
@@ -246,6 +250,139 @@ DSPInterP:
dw 0, 0, 0, 0, 0, 0, 0, 0
dw 0, 0, 0, 0, 0, 0, 0, 0
CubicSpline:
dw 0, 0, 0, 0, 0, 0, 0, 0
dw 0, -1, -1, -1, -2, -2, -2, -3
dw -3, -4, -4, -5, -5, -6, -6, -7
dw -8, -8, -9, -10, -10, -11, -12, -13
dw -14, -14, -15, -16, -17, -18, -19, -20
dw -21, -22, -23, -24, -25, -26, -27, -28
dw -29, -30, -31, -32, -33, -34, -35, -37
dw -38, -39, -40, -41, -43, -44, -45, -46
dw -48, -49, -50, -51, -53, -54, -55, -56
dw -58, -59, -60, -62, -63, -64, -66, -67
dw -68, -70, -71, -72, -74, -75, -76, -78
dw -79, -80, -82, -83, -84, -86, -87, -88
dw -90, -91, -92, -93, -95, -96, -97, -99
dw -100,-101,-102,-104,-105,-106,-107,-109
dw -110,-111,-112,-113,-114,-116,-117,-118
dw -119,-120,-121,-122,-123,-124,-125,-126
dw -128,-128,-129,-130,-131,-132,-133,-134
dw -135,-136,-137,-137,-138,-139,-140,-141
dw -141,-142,-143,-143,-144,-144,-145,-146
dw -146,-147,-147,-148,-148,-148,-149,-149
dw -150,-150,-150,-150,-151,-151,-151,-151
dw -151,-151,-151,-151,-151,-151,-151,-151
dw -151,-151,-150,-150,-150,-149,-149,-149
dw -148,-148,-147,-147,-146,-146,-145,-144
dw -144,-143,-142,-141,-140,-139,-138,-137
dw -136,-135,-134,-133,-132,-130,-129,-128
dw -126,-125,-123,-122,-120,-119,-117,-115
dw -113,-112,-110,-108,-106,-104,-102,-100
dw -98, -95, -93, -91, -88, -86, -83, -81
dw -78, -76, -73, -70, -67, -65, -62, -59
dw -56, -53, -50, -46, -43, -40, -36, -33
dw -30, -26, -22, -19, -15, -11, -7, -3
dw 0, 4, 8, 12, 16, 21, 26, 30
dw 35, 40, 46, 51, 56, 62, 67, 73
dw 79, 85, 91, 97, 103, 109, 116, 122
dw 129, 136, 143, 149, 156, 164, 171, 178
dw 186, 193, 201, 208, 216, 224, 232, 240
dw 248, 256, 264, 273, 281, 289, 298, 307
dw 315, 324, 333, 342, 351, 360, 369, 378
dw 387, 397, 406, 415, 425, 435, 444, 454
dw 464, 473, 483, 493, 503, 513, 523, 533
dw 543, 553, 564, 574, 584, 594, 605, 615
dw 626, 636, 647, 657, 668, 679, 689, 700
dw 711, 721, 732, 743, 754, 765, 776, 787
dw 798, 808, 819, 830, 841, 852, 863, 874
dw 886, 897, 908, 919, 930, 941, 952, 963
dw 974, 985, 996,1008,1019,1030,1041,1052
dw 1063,1074,1085,1096,1107,1118,1129,1140
dw 1152,1162,1173,1184,1195,1206,1217,1228
dw 1239,1250,1261,1271,1282,1293,1303,1314
dw 1325,1335,1346,1356,1367,1377,1388,1398
dw 1408,1419,1429,1439,1449,1459,1470,1480
dw 1490,1499,1509,1519,1529,1539,1548,1558
dw 1567,1577,1586,1595,1605,1614,1623,1632
dw 1641,1650,1659,1668,1677,1685,1694,1702
dw 1711,1719,1727,1736,1744,1752,1760,1768
dw 1776,1783,1791,1798,1806,1813,1820,1828
dw 1835,1842,1849,1855,1862,1869,1875,1881
dw 1888,1894,1900,1906,1912,1918,1923,1929
dw 1934,1940,1945,1950,1955,1960,1964,1969
dw 1974,1978,1982,1986,1990,1994,1998,2002
dw 2005,2008,2012,2015,2018,2021,2023,2026
dw 2028,2031,2033,2035,2037,2038,2040,2041
dw 2043,2044,2045,2046,2046,2047,2047,2047
dw 2048,2047,2047,2047,2046,2046,2045,2044
dw 2043,2041,2040,2038,2037,2035,2033,2031
dw 2028,2026,2023,2021,2018,2015,2012,2008
dw 2005,2002,1998,1994,1990,1986,1982,1978
dw 1974,1969,1964,1960,1955,1950,1945,1940
dw 1934,1929,1923,1918,1912,1906,1900,1894
dw 1888,1881,1875,1869,1862,1855,1849,1842
dw 1835,1828,1820,1813,1806,1798,1791,1783
dw 1776,1768,1760,1752,1744,1736,1727,1719
dw 1711,1702,1694,1685,1677,1668,1659,1650
dw 1641,1632,1623,1614,1605,1595,1586,1577
dw 1567,1558,1548,1539,1529,1519,1509,1499
dw 1490,1480,1470,1459,1449,1439,1429,1419
dw 1408,1398,1388,1377,1367,1356,1346,1335
dw 1325,1314,1303,1293,1282,1271,1261,1250
dw 1239,1228,1217,1206,1195,1184,1173,1162
dw 1152,1140,1129,1118,1107,1096,1085,1074
dw 1063,1052,1041,1030,1019,1008, 996, 985
dw 974, 963, 952, 941, 930, 919, 908, 897
dw 886, 874, 863, 852, 841, 830, 819, 808
dw 798, 787, 776, 765, 754, 743, 732, 721
dw 711, 700, 689, 679, 668, 657, 647, 636
dw 626, 615, 605, 594, 584, 574, 564, 553
dw 543, 533, 523, 513, 503, 493, 483, 473
dw 464, 454, 444, 435, 425, 415, 406, 397
dw 387, 378, 369, 360, 351, 342, 333, 324
dw 315, 307, 298, 289, 281, 273, 264, 256
dw 248, 240, 232, 224, 216, 208, 201, 193
dw 186, 178, 171, 164, 156, 149, 143, 136
dw 129, 122, 116, 109, 103, 97, 91, 85
dw 79, 73, 67, 62, 56, 51, 46, 40
dw 35, 30, 26, 21, 16, 12, 8, 4
dw 0, -3, -7, -11, -15, -19, -22, -26
dw -30, -33, -36, -40, -43, -46, -50, -53
dw -56, -59, -62, -65, -67, -70, -73, -76
dw -78, -81, -83, -86, -88, -91, -93, -95
dw -98,-100,-102,-104,-106,-108,-110,-112
dw -113,-115,-117,-119,-120,-122,-123,-125
dw -126,-128,-129,-130,-132,-133,-134,-135
dw -136,-137,-138,-139,-140,-141,-142,-143
dw -144,-144,-145,-146,-146,-147,-147,-148
dw -148,-149,-149,-149,-150,-150,-150,-151
dw -151,-151,-151,-151,-151,-151,-151,-151
dw -151,-151,-151,-151,-151,-150,-150,-150
dw -150,-149,-149,-148,-148,-148,-147,-147
dw -146,-146,-145,-144,-144,-143,-143,-142
dw -141,-141,-140,-139,-138,-137,-137,-136
dw -135,-134,-133,-132,-131,-130,-129,-128
dw -128,-126,-125,-124,-123,-122,-121,-120
dw -119,-118,-117,-116,-114,-113,-112,-111
dw -110,-109,-107,-106,-105,-104,-102,-101
dw -100, -99, -97, -96, -95, -93, -92, -91
dw -90, -88, -87, -86, -84, -83, -82, -80
dw -79, -78, -76, -75, -74, -72, -71, -70
dw -68, -67, -66, -64, -63, -62, -60, -59
dw -58, -56, -55, -54, -53, -51, -50, -49
dw -48, -46, -45, -44, -43, -41, -40, -39
dw -38, -37, -35, -34, -33, -32, -31, -30
dw -29, -28, -27, -26, -25, -24, -23, -22
dw -21, -20, -19, -18, -17, -16, -15, -14
dw -14, -13, -12, -11, -10, -10, -9, -8
dw -8, -7, -6, -6, -5, -5, -4, -4
dw -3, -3, -2, -2, -2, -1, -1, -1
dw 0, 0, 0, 0, 0, 0, 0, 0
ALIGN32
NEWSYM spcWptr, times 16 dd 0 ; SPC Write pointers (point to their own functions)
@@ -370,6 +507,41 @@ NEWSYM conv2speed
NEWSYM AdjustFrequency
cmp byte[UseCubicSpline],1
je .cubicspline
; Copy from Gaussian to DSPInterP
mov ebx,DSPInterP
mov edx,DSPInterP+2046
mov ecx,512
.intrploop
xor eax,eax
mov ax,[edx+1024]
mov [edx],ax
mov [ebx],ax
add ebx,2
sub edx,2
loop .intrploop
jmp .notgaussian
.cubicspline
; Copy from CubicSpline to DSPInterP
mov ebx,CubicSpline
mov edx,DSPInterP
mov ecx,1024
.intrploopb
xor eax,eax
mov ax,[ebx]
push ebx
mov bx,ax
sar bx,3
sub ax,bx
pop ebx
mov [edx],ax
add ebx,2
add edx,2
loop .intrploopb
.notgaussian
cmp byte[StereoSound],1
jne .nostereo8b
cmp byte[SBHDMA],0
@@ -452,21 +624,17 @@ NEWSYM InitSPC
push edx
; Mirror Interpolation Table
mov ebx,DSPInterP
mov edx,DSPInterP+2046
mov ebx,Gaussian
mov ecx,512
.intrploop
xor eax,eax
mov ax,[edx]
.intloop
mov ax,[ebx]
or ax,ax
jz .nodec
dec ax
.nodec
mov [edx],ax
mov [ebx],ax
add ebx,2
sub edx,2
loop .intrploop
dec ecx
jnz .intloop
call AdjustFrequency