7 Oct
2007
7 Oct
'07
6:29 a.m.
gl:tex-image-2d seems a bit slow (~23 sec for a 1k by 1k texture on SBCL 1.0.2 win32), attached patch speeds it up ~100x (to ~0.25 sec).
Problem was that the element type in with-opengl-array wasn't constant (since it had been passed as a parameter to tex-image-2d) so cffi couldn't optimize for a specific type. Patch moves the type check out of the copy loop, and duplicates the loop for each type, so each case can be optimized individually.
-- Bart