Lines Matching refs:Sa
40 Sa; in MagickOver_() local
42 Sa=QuantumScale*alpha; in MagickOver_()
44 return(Sa*p+Da*q*(1.0-Sa)); in MagickOver_()
58 Sa; in CompositePixelOver() local
66 Sa=QuantumScale*alpha; in CompositePixelOver()
68 gamma=Sa+Da-Sa*Da; in CompositePixelOver()
110 composite[i]=ClampToQuantum(QuantumRange*RoundToUnity(Sa+Da-Sa*Da)); in CompositePixelOver()
128 Sa; in CompositePixelInfoOver() local
133 Sa=QuantumScale*alpha; in CompositePixelInfoOver()
135 gamma=Sa+Da-Sa*Da; in CompositePixelInfoOver()
151 Sa; in CompositePixelInfoPlus() local
156 Sa=QuantumScale*alpha; in CompositePixelInfoPlus()
158 gamma=RoundToUnity(Sa+Da); /* 'Plus' blending -- not 'Over' blending */ in CompositePixelInfoPlus()
161 composite->red=gamma*(Sa*p->red+Da*q->red); in CompositePixelInfoPlus()
162 composite->green=gamma*(Sa*p->green+Da*q->green); in CompositePixelInfoPlus()
163 composite->blue=gamma*(Sa*p->blue+Da*q->blue); in CompositePixelInfoPlus()
165 composite->black=gamma*(Sa*p->black+Da*q->black); in CompositePixelInfoPlus()