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Øyvind "pippin" Kolås authored
As opposed to the generated math ops, the porter duff operations - just like over - only make proper sense with alpha channels, not having the alpha at all removes conditionals and thus speeds them up.
98fbcea1
As opposed to the generated math ops, the porter duff operations - just like over - only make proper sense with alpha channels, not having the alpha at all removes conditionals and thus speeds them up.