php-src/ext/gd/libgd/mathmake.c

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#include <stdio.h>
#include <math.h>
#define scale 1024
int basis[91];
int cost[360];
main (void)
{
int i;
printf ("#define costScale %d\n", scale);
printf ("int cost[] = {\n ");
for (i = 0; (i <= 90); i++)
{
basis[i] = cos ((double) i * .0174532925) * scale;
}
for (i = 0; (i < 90); i++)
{
printf ("%d,\n ", cost[i] = basis[i]);
}
for (i = 90; (i < 180); i++)
{
printf ("%d,\n ", cost[i] = -basis[180 - i]);
}
for (i = 180; (i < 270); i++)
{
printf ("%d,\n ", cost[i] = -basis[i - 180]);
}
for (i = 270; (i < 359); i++)
{
printf ("%d,\n ", cost[i] = basis[360 - i]);
}
printf ("%d\n", cost[359] = basis[1]);
printf ("};\n");
printf ("#define sintScale %d\n", scale);
printf ("int sint[] = {\n ");
for (i = 0; (i < 360); i++)
{
int val;
val = cost[(i + 270) % 360];
if (i != 359)
{
printf ("%d,\n ", val);
}
else
{
printf ("%d\n", val);
}
}
printf ("};\n");
}