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Update OpenAL Soft to 1.18.2

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This commit is contained in:
Alex Szpakowski
2017-12-10 22:34:10 -04:00
parent 75e0077566
commit b160006eb1
152 changed files with 33572 additions and 15363 deletions
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libs/openal-soft/utils/bsincgen.c
+39 -1
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@@ -364,11 +364,49 @@ static void BsiGenerateTables()
fprintf(stdout, " },\n {");
for(si = 0; si < (BSINC_SCALE_COUNT - 1); si++)
fprintf(stdout, " %d,", mt[si]);
fprintf(stdout, " 0 }\n };\n");
fprintf(stdout, " 0 }\n };\n\n");
}
/* These methods generate a much simplified 4-point sinc interpolator using a
* Kaiser windows. This is much simpler to process at run-time, but has notably
* more aliasing noise.
*/
/* Same as in alu.h! */
#define FRACTIONBITS (12)
#define FRACTIONONE (1<<FRACTIONBITS)
static double SincKaiser(double r, double x)
{
/* Limit rippling to -60dB. */
return Kaiser(CalcKaiserBeta(60.0), x / r) * Sinc(x);
}
static void Sinc4GenerateTables(void)
{
static double filter[FRACTIONONE][4];
int i;
for(i = 0;i < FRACTIONONE;i++)
{
double mu = (double)i / FRACTIONONE;
filter[i][0] = SincKaiser(2.0, mu - -1.0);
filter[i][1] = SincKaiser(2.0, mu - 0.0);
filter[i][2] = SincKaiser(2.0, mu - 1.0);
filter[i][3] = SincKaiser(2.0, mu - 2.0);
}
fprintf(stdout, "static const float sinc4Tab[%d][4] =\n{\n", FRACTIONONE);
for(i = 0;i < FRACTIONONE;i++)
fprintf(stdout, " { %+14.9ef, %+14.9ef, %+14.9ef, %+14.9ef },\n",
filter[i][0], filter[i][1], filter[i][2], filter[i][3]);
fprintf(stdout, "};\n\n");
}
int main(void)
{
BsiGenerateTables();
Sinc4GenerateTables();
return 0;
}