! @brief Compresses a 4x4 block of pixels. @param rgba The rgba values of the 16 source pixels. @param block Storage for the compressed DXT block.

Construct from just an ImageBuf -- iterate over the whole region, starting with the upper left pixel of the region.

Look up size of given data type (in bytes). */

Public Member Interface Default constructor initiaizes val with the defaul value

Default constructor, sets all members to zero.

Fast (int)val See Michael Herf's "Know Your FPU" page: http://www.stereopsis.com/sree/fpu2006.html

Hash in file contents