Additionally, the programmer was faced with a fair degree of overhead: the color keyed area of each bitmap had to be ignored during the blitting process.
Additionally, the programmer was faced with a fair degree of overhead: the color keyed area of each bitmap had to be ignored during the blitting process.
因此，程序员就得面对相当大的程序开销：在位块传送过程中，必须明度背景关键色不被绘制到屏幕上。