cocos2d-x FrameSize VisibleSize WinSize

FrameSize 屏幕分辨率

WinSize DisignReslution

VisibleSize 在WinSize之内，小于或者等于WinSize

屏幕分辨率适配模式：

1.kResolutionExactFit 横向按横向比拉伸，纵向按纵向比拉伸

2.kResolutionNoBorder MAC(横向比，纵向比) 拉伸 ，会裁切

3.kResolutionShowAll MIN(横向比，纵向比) 拉伸 ，会出现黑边

4.kResolutionFixedHeight 高度撑满，纵向裁切 ，配合缩放因子 RH/DH

5.kResolutionFixedWidth 宽度撑满，纵向裁切 ,配合缩放因子 RW/DW

6.kResolutionUnKnown

enum ResolutionPolicy{    // The entire application is visible in the specified area without trying to preserve the original aspect ratio.    // Distortion can occur, and the application may appear stretched or compressed.    kResolutionExactFit,    // The entire application fills the specified area, without distortion but possibly with some cropping,    // while maintaining the original aspect ratio of the application.    kResolutionNoBorder,    // The entire application is visible in the specified area without distortion while maintaining the original    // aspect ratio of the application. Borders can appear on two sides of the application.    kResolutionShowAll,    // The application takes the height of the design resolution size and modifies the width of the internal    // canvas so that it fits the aspect ratio of the device    // no distortion will occur however you must make sure your application works on different    // aspect ratios    kResolutionFixedHeight,    // The application takes the width of the design resolution size and modifies the height of the internal    // canvas so that it fits the aspect ratio of the device    // no distortion will occur however you must make sure your application works on different    // aspect ratios    kResolutionFixedWidth,    kResolutionUnKnown,};