glLineWidth在设备Cocos2d上有所不同

Question

HEre是我的绘画方法..在ios6 / 7＆amp; iPhone3 / 4/5模拟器，但我的iphone 5s的线路更薄..我将线宽增加到100但没有工作，但如果我减少它，它的工作原理！这是一个cocos2d v2.1项目。

-(void) draw
{
    glEnable(0x0B20);

    ccDrawColor4F(0.22f, 0.82f, 0.00f, 1.00f);
    glLineWidth([[UIScreen main] scale] == 2 ? 32 : 16);

        ccDrawLine(ccp(0, 0), ccp(0, [[arr objectAtIndex:0] intValue]));
        ccDrawLine(ccp(0, size.height), ccp(0, size.height - [[arr objectAtIndex:0] intValue]));

        for(int x = 0; x <= (size.width / 16); x++)
        {
            ccDrawLine(ccp(x*16 - offset, 0), ccp(x*16 - offset, [[arr objectAtIndex:x] intValue]));
            ccDrawLine(ccp(x*16 - offset, size.height), ccp(x*16 - offset, size.height - [[arr objectAtIndex:x] intValue]));
        }
}