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Updated ft2play to version 0.45

CQTexperiment
Chris Moeller 2014-04-12 14:06:49 -07:00
parent 6c3c261ef9
commit 10e80e2965
1 changed files with 17 additions and 5 deletions
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22
Frameworks/modplay/modplay/ft2play.c
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@ -1,6 +1,6 @@
/*
** FT2PLAY v0.43a
** ==============
** FT2PLAY v0.45
** =============
**
** C port of FastTracker II's replayer, by 8bitbubsy (Olav Sørensen)
** using the original pascal+asm source codes by Mr.H (Fredrik Huss) of Triton
@ -3730,16 +3730,28 @@ void * ft2play_Alloc(uint32_t _samplingFrequency, int8_t interpolation, int8_t r
{
for (j = 0; j < ((i == 9) ? (96 + 8) : 96); ++j)
{
noteVal = ((AmigaFinePeriod[j] << 6) + (-1 + (1 << i))) >> (i + 1);
noteVal = ((AmigaFinePeriod[j % 96] << 6) + (-1 + (1 << i))) >> (i + 1);
// NON-FT2: j % 96. Added for safety. We're patching the values later anyways.
p->amigaPeriods[noteIndex++] = noteVal;
p->amigaPeriods[noteIndex++] = noteVal;
}
}
for (i = 0; i < (((12 * 10 * 16) + 16) / 2); ++i)
for (i = 0; i < (12 * 10 * 8) + 7; ++i)
p->amigaPeriods[(i << 1) + 1] = (p->amigaPeriods[i << 1] + p->amigaPeriods[(i << 1) + 2]) >> 1;
// The amiga linear period table has its 17 last entries generated wrongly.
// The content seem to be garbage because of an "out of boundaries" read from AmigaFinePeriods.
// These 17 values were taken from a memdump of FT2 in DOSBox.
// They might change depending on what you ran before FT2, but let's not make it too complicated.
p->amigaPeriods[1919] = 22; p->amigaPeriods[1920] = 16; p->amigaPeriods[1921] = 8;
p->amigaPeriods[1922] = 0; p->amigaPeriods[1923] = 16; p->amigaPeriods[1924] = 32;
p->amigaPeriods[1925] = 24; p->amigaPeriods[1926] = 16; p->amigaPeriods[1927] = 8;
p->amigaPeriods[1928] = 0; p->amigaPeriods[1929] = 16; p->amigaPeriods[1930] = 32;
p->amigaPeriods[1931] = 24; p->amigaPeriods[1932] = 16; p->amigaPeriods[1933] = 8;
p->amigaPeriods[1934] = 0; p->amigaPeriods[1935] = 0;
// generate auto-vibrato table (value-exact to its original table)
for (i = 0; i < 256; ++i)
p->VibSineTab[i] = (int8_t)floorf((64.0f * sinf(((float)(-i) * (2.0f * 3.1415927f)) / 256.0f)) + 0.5f);