shithub: qk1

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blendalpha: leave dest color attributes

--- a/d_local.h

+++ b/d_local.h

@@ -82,10 +82,11 @@

 		a = (alpha*((ca>> 0)&0xff) + 255*((cb>> 0)&0xff))>> 8;

 		b = (alpha*((ca>> 8)&0xff) + 255*((cb>> 8)&0xff))>> 8;

 		c = (alpha*((ca>>16)&0xff) + 255*((cb>>16)&0xff))>> 8;

-		return min(a, 255) | min(b, 255)<<8 | min(c, 255)<<16;

+		return (cb & 0xff000000) | min(a, 255) | min(b, 255)<<8 | min(c, 255)<<16;

 	}

 	return

+		(cb & 0xff000000) |

 		((alpha*((ca>> 0)&0xff) + (255-alpha)*((cb>> 0)&0xff))>> 8) << 0 |

 		((alpha*((ca>> 8)&0xff) + (255-alpha)*((cb>> 8)&0xff))>> 8) << 8 |

 		((alpha*((ca>>16)&0xff) + (255-alpha)*((cb>>16)&0xff))>> 8) << 16;