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Returns a channel descriptor with format fand number of bits of each componentx,y,z, andw. The cudaChannelFormatDesc is defined as: 
where cudaChannelFormatKind is one of cudaChannelFormatKindSigned, cudaChannelFormatKindUnsigned, or cudaChannelFormatKindFloat. 
 Parameters:
  
    |  | x | - X component |  |  | y | - Y component |  |  | z | - Z component |  |  | w | - W component |  |  | f | - Channel format | 
 Returns:Channel descriptor with format f
 See also:cudaCreateChannelDesc (C++ API), cudaGetChannelDesc, cudaGetTextureReference, cudaBindTexture (C API), cudaBindTexture2D (C API), cudaBindTextureToArray (C API), cudaUnbindTexture (C API), cudaGetTextureAlignmentOffset (C API) 
 
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