57     gamma,  in CompositePixelOver()  local
68   gamma=Sa+Da-Sa*Da;  in CompositePixelOver()
69   gamma=PerceptibleReciprocal(gamma);  in CompositePixelOver()
86         composite[i]=ClampToQuantum(gamma*MagickOver_((double) p->red,alpha,  in CompositePixelOver()
92         composite[i]=ClampToQuantum(gamma*MagickOver_((double) p->green,alpha,  in CompositePixelOver()
98         composite[i]=ClampToQuantum(gamma*MagickOver_((double) p->blue,alpha,  in CompositePixelOver()
104         composite[i]=ClampToQuantum(gamma*MagickOver_((double) p->black,alpha,  in CompositePixelOver()
127     gamma,  in CompositePixelInfoOver()  local
135   gamma=Sa+Da-Sa*Da;  in CompositePixelInfoOver()
136   composite->alpha=(double) QuantumRange*RoundToUnity(gamma);  in CompositePixelInfoOver()
137   gamma=PerceptibleReciprocal(gamma);  in CompositePixelInfoOver()
138   composite->red=gamma*MagickOver_(p->red,alpha,q->red,beta);  in CompositePixelInfoOver()
139   composite->green=gamma*MagickOver_(p->green,alpha,q->green,beta);  in CompositePixelInfoOver()
140   composite->blue=gamma*MagickOver_(p->blue,alpha,q->blue,beta);  in CompositePixelInfoOver()
142     composite->black=gamma*MagickOver_(p->black,alpha,q->black,beta);  in CompositePixelInfoOver()
150     gamma,  in CompositePixelInfoPlus()  local
158   gamma=RoundToUnity(Sa+Da);  /* 'Plus' blending -- not 'Over' blending */  in CompositePixelInfoPlus()
159   composite->alpha=(double) QuantumRange*RoundToUnity(gamma);  in CompositePixelInfoPlus()
160   gamma=PerceptibleReciprocal(gamma);  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()