COLORDATATYPE enumeration (icm.h)
Used by WCS functions to indicate the data type of vector content.
Syntax
typedef enum {
COLOR_BYTE = 1,
COLOR_WORD,
COLOR_FLOAT,
COLOR_S2DOT13FIXED,
COLOR_10b_R10G10B10A2,
COLOR_10b_R10G10B10A2_XR,
COLOR_FLOAT16
} COLORDATATYPE;
Constants
COLOR_BYTE Value: 1 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 Color data is stored as 10 bits per channel. The two most significant bits are alpha. |
COLOR_10b_R10G10B10A2_XR Color data is stored as 10 bits per channel, 32 bits per pixel. The 10 bits of each color channel are 2.8 fixed point with a -0.75 bias, giving a range of [-0.76 .. 1.25]. This range corresponds to [-0.5 .. 1.5] in a gamma = 1 space. The two most significant bits are preserved for alpha. This uses an extended range (XR) sRGB color space. It has the same RGB primaries, white point, and gamma as sRGB. |
COLOR_FLOAT16 Color data is stored as 16 bits value per channel, as defined by the IEEE 16-bit floating point standard. |
Remarks
The PCOLORDATATYPE and LPCOLORDATATYPE data types are defined as pointers to the COLORDATATYPE enumeration:
typedef COLORDATATYPE *PCOLORDATATYPE, *LPCOLORDATATYPE;
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows Vista [desktop apps only] |
Minimum supported server | Windows Server 2008 [desktop apps only] |
Header | icm.h |