9 Commits

Author	SHA1	Message	Date
homm	ebb9029fbe	add parentheses to avoid warnings	2013-03-27 23:19:04 +04:00
homm	a511ef8b05	move declarations to make ANSI compilers happy	2013-03-27 23:18:10 +04:00
homm	a83ef0f0ed	≈20% faster, 2 times more precisely (0.17% difference against 0.37%)	2013-03-26 01:15:18 +04:00
homm	af96b5d4b2	Precision improvement. No performance affected.	2013-03-25 00:06:02 +04:00
homm	0663e14444	speedup. divisions replaced by shifts.	2013-03-23 16:54:02 +04:00
homm	e88490b4f2	Precision improvement. ≈60% performance lost	2013-03-23 14:26:14 +04:00
homm	c39a51bcf0	Significant performance improvement of alpha_composite function.	2013-03-23 05:46:39 +04:00
Tom Payne	9d35947363	Avoid rounding error in Image.alpha_composite	2012-12-19 14:25:22 +01:00
Tom Payne	e414c66070	Add Image.alpha_composite	2012-12-04 16:44:26 +01:00