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mesa: Fix logbase2.

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It was providing 1 too many for non power two values.
This commit is contained in:
José Fonseca 2009-07-16 19:20:25 +01:00
parent 0c4350790a
commit d4e6df9ab6
1 changed files with 5 additions and 7 deletions
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12
src/mesa/state_tracker/st_cb_texture.c
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@ -237,14 +237,12 @@ do_memcpy(void *dest, const void *src, size_t n)
}
static int
logbase2(int n)
static INLINE unsigned
logbase2(unsigned n)
{
GLint i = 1, log2 = 0;
while (n > i) {
i *= 2;
log2++;
}
unsigned log2 = 0;
while (n >>= 1)
++log2;
return log2;
}