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Lines Matching refs:abits

653 	int rbits, bbits, gbits, abits;
659 	abits = PICT_FORMAT_A(format);
675 		rshift = abits;
676 		if (abits == 0)
711 	if (abits) {
712 		*alpha = ((pixel >> ashift) & ((1 << abits) - 1)) << (16 - abits);
713 		while (abits < 16) {
714 			*alpha |= *alpha >> abits;
715 			abits <<= 1;
731 	int rbits, bbits, gbits, abits;
737 	abits = PICT_FORMAT_A(format);
738 	if (abits == 0)
739 	    abits = PICT_FORMAT_BPP(format) - (rbits+gbits+bbits);
742 		*pixel = alpha >> (16 - abits);
761 		rshift = abits;
771 	*pixel |= (alpha >> (16 - abits)) << ashift;
847 	unsigned int abits;
849 	abits = PICT_FORMAT_A(format);
850 	if (!abits)
855 		return (pixel & ((1 << abits) - 1)) == 0;
858 		unsigned int ashift = PICT_FORMAT_BPP(format) - abits;
867 	unsigned int abits;
869 	abits = PICT_FORMAT_A(format);
870 	if (!abits)
875 		return (pixel & ((1 << abits) - 1)) == (unsigned)((1 << abits) - 1);
878 		unsigned int ashift = PICT_FORMAT_BPP(format) - abits;
879 		return (pixel >> ashift) == (unsigned)((1 << abits) - 1);