Am 2003.03.25 21:02:24 +0100 schrieb(en) Keith Whitwell:
Gareth Hughes wrote:
Andreas Stenglein wrote:
Yes, at least the part with GL_TRIANGLE_STRIP.
In case of "0" you can just return 0, no copying is needed.
case 0: return 0; break;
You're going to do that, just in a slightly different manner:
switch (nr) {
case 0: ovf = 0; break;
case 1: ovf = 1; break;
default: ovf = 2; break;
}
for (i = 0 ; i < ovf ; i++)
copy_vertex( rmesa, nr-ovf+i, tmp[i] );
return i; When nr == 0, ovf gets set to 0 and you do no
iterations of the for loop. You'll then return i, which was
initialized to 0.
so in the end for nr>=0 ovf could be calculated almost as in
the original version:
ovf= MIN2(nr, 2); (for GL_TRIANGLE_STRIP)
ovf= MIN2(nr, 2);
if (nr > 2) ovf += nr&1; (for GL_QUAD_STRIP)
OK, this isn't perf critical code, so I'll just commit the clearest
version.
This is all queued up now pending the merge completion, which is
also waiting on me...
Keith
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