wonderbrush/support/blending.h

49 		uint32 alphaTemp = (65025 - alphaRest * (255 - ba));
52 		*d1 = kInverseGammaTable[(b1 * alphaDest + t1 * alphaSrc) / alphaTemp];
53 		*d2 = kInverseGammaTable[(b2 * alphaDest + t2 * alphaSrc) / alphaTemp];
54 		*d3 = kInverseGammaTable[(b3 * alphaDest + t3 * alphaSrc) / alphaTemp];
55 		*da = alphaTemp / 255;
381 				uint32 alphaTemp = (65025 - alphaRest * (255 - bottom[3]));
384 				dest[0] = (bottom[0] * alphaDest + c1 * alphaSrc) / alphaTemp;
385 				dest[1] = (bottom[1] * alphaDest + c2 * alphaSrc) / alphaTemp;
386 				dest[2] = (bottom[2] * alphaDest + c3 * alphaSrc) / alphaTemp;
387 				dest[3] = alphaTemp / 255;
413 				uint32 alphaTemp = (65025 - alphaRest * (255 - bottom[3]));
416 				bottom[0] = (bottom[0] * alphaDest + c1 * alphaSrc) / alphaTemp;
417 				bottom[1] = (bottom[1] * alphaDest + c2 * alphaSrc) / alphaTemp;
418 				bottom[2] = (bottom[2] * alphaDest + c3 * alphaSrc) / alphaTemp;
419 				bottom[3] = alphaTemp / 255;
444 				uint32 alphaTemp = (65025 - alphaRest * (255 - bottom[3]));
447 				bottom[0] = (bottom[0] * alphaDest + source[0] * alphaSrc) / alphaTemp;
448 				bottom[1] = (bottom[1] * alphaDest + source[1] * alphaSrc) / alphaTemp;
449 				bottom[2] = (bottom[2] * alphaDest + source[2] * alphaSrc) / alphaTemp;
450 				bottom[3] = alphaTemp / 255;
474 				uint32 alphaTemp = (65025 - alphaRest * (255 - bottom[3]));
477 				bottom[0] = (bottom[0] * alphaDest + source[0] * alphaSrc) / alphaTemp;
478 				bottom[1] = (bottom[1] * alphaDest + source[1] * alphaSrc) / alphaTemp;
479 				bottom[2] = (bottom[2] * alphaDest + source[2] * alphaSrc) / alphaTemp;
480 				bottom[3] = alphaTemp / 255;
504 			uint32 alphaTemp = (65025 - alphaRest * (255 - bottom[3]));
507 			dest[0] = (bottom[0] * alphaDest + top[0] * alphaSrc) / alphaTemp;
508 			dest[1] = (bottom[1] * alphaDest + top[1] * alphaSrc) / alphaTemp;
509 			dest[2] = (bottom[2] * alphaDest + top[2] * alphaSrc) / alphaTemp;
510 			dest[3] = alphaTemp / 255;