3D游戏编程入门经典(26)

为了修改应用程序中的编译错误，添加程序清单3.2中的代码。

程序清单3.2 实现接口

///

/// called during device initialization, this code checks the device for a

/// minimum set of capabilities and rejects those that don’t pass by

/// returning false.

///

public bool isdeviceacceptable(caps caps, format adapterformat,

format backbufferformat, bool windowed)

{

// skip back buffer formats that don’t support alpha blending

if (!manager.checkdeviceformat(caps.adapterordinal, caps.devicetype,

adapterformat, usage.querypostpixelshaderblending,

resourcetype.textures, backbufferformat))

return false;

// skip any device that doesn’t support at least a single light

if (caps.maxactivelights == 0)

return false;

return true;

}

///

/// this callback function is called immediately before a device is created

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