GPGPU Programming for Games and Science

188 GPGPU Programming for Games and Science

// Return the repackaged input . Although we already know the uint

// values are the same as extracted , this code shows how to

// reinterpret ’ float ’ and ’double ’ values .

asuint (pid , pidLoEncoding , pidHiEncoding);

pifEncoding = asuint ( pif );

uint4 outValue ;

outValue . x = pidLoEncoding ;

outValue .y = pidHiEncoding;

outValue .z = pifEncoding;

outValue .w = minusOneEncoding | (a << 16) | (b << 24);

output . Store4 (0 , outValue );

}

LISTING 4.35: The HLSL file for the RawBuffers sample application.

The byte-address buffer HLSL objects have

Load* functions to read data

from the buffer. The

Load4(i) function