COLORDATATYPE enumeration

The values of the COLORDATATYPE enumeration are used by WCS functions to indicate the data type of vector content.

Syntax

typedef enum  { 
  COLOR_BYTE                = 1,
  COLOR_WORD                = 2,
  COLOR_FLOAT               = 3,
  COLOR_S2DOT13FIXED        = 4,
  COLOR_10b_R10G10B10A2     = 5,
  COLOR_10b_R10G10B10A2_XR  = 6,
  COLOR_FLOAT16             = 7
} COLORDATATYPE;

Constants

• COLOR_BYTE
  Color data is stored as 8 bits per channel, with a value from 0 to 255, inclusive.

• COLOR_WORD
  Color data is stored as 16 bits per channel, with a value from 0 to 65535, inclusive.

• COLOR_FLOAT
  Color data is stored as 32 bits value per channel, as defined by the IEEE 32-bit floating point standard.

• COLOR_S2DOT13FIXED
  Color data is stored as 16 bits per channel, with a fixed range of -4 to +4, inclusive. A signed format is used, with 1 bit for the sign, 2 bits for the integer portion, and 13 bits for the fractional portion.

• COLOR_10b_R10G10B10A2
  Packed WORD per channel. data range [0, 1]

• COLOR_10b_R10G10B10A2_XR
  Packed extended range WORD per channel. data range [-1, 3]

• COLOR_FLOAT16
  FLOAT16 per channel.

Remarks

The PCOLORDATATYPE and LPCOLORDATATYPE data types are defined as pointers to this enumeration:

typedef COLORDATATYPE *PCOLORDATATYPE, *LPCOLORDATATYPE;

Requirements

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