Lines Matching refs:mask_alpha
456 mask_alpha; in ClipPixelCacheNexus() local
461 mask_alpha=QuantumScale*GetPixelWriteMask(image,p); in ClipPixelCacheNexus()
462 if (fabs(mask_alpha) >= MagickEpsilon) in ClipPixelCacheNexus()
470 q[i]=ClampToQuantum(MagickOver_((double) p[i],mask_alpha* in ClipPixelCacheNexus()
3393 mask_alpha; in ApplyPixelCompositeMask() local
3400 mask_alpha=1.0-QuantumScale*QuantumScale*alpha*beta; in ApplyPixelCompositeMask()
3401 mask_alpha=PerceptibleReciprocal(mask_alpha); in ApplyPixelCompositeMask()
3402 pixel=ClampToQuantum(mask_alpha*MagickOver_((double) p,alpha,(double) q, in ApplyPixelCompositeMask()
3446 mask_alpha; in MaskPixelCacheNexus() local
3451 mask_alpha=(double) GetPixelCompositeMask(image,p); in MaskPixelCacheNexus()
3458 q[i]=ApplyPixelCompositeMask(p[i],mask_alpha,q[i],(MagickRealType) in MaskPixelCacheNexus()