LColor::ConvertDirect

#include "ltwrappr.h"

static L_INT LColor::ConvertDirect(nSrcFormat, nDstFormat, pSrcBuf, pDstBuf, nWidth, nHeight, nInAlign, nOutAlign);

L_INT nSrcFormat;	/* format of the input data */
L_INT nDstFormat;	/* format of the output data */
L_UCHAR * pSrcBuf;	/* pointer to the input buffer */
L_UCHAR * pDstBuf;	/* pointer to the output buffer */
L_INT nWidth;	/* width of pixels to be processed */
L_INT nHeight;	/* height of pixels to be processed */
L_INT nInAlign;	/* each scanline in the input buffer is a multiple of nInAlign bytes */
L_INT nOutAlign;	/* each scanline in the output buffer is a multiple of nOutAlign bytes */

Converts image data in a buffer from one color conversion model to another directly using built in algorithms.

Parameter	Description
nSrcFormat	Format of the source data. Possible values are:
	Value	Meaning
	CCS_RGB	[0x00] Color conversion is RGB.
	CCS_YUV	[0x01] Color conversion is YUV.
	CCS_CMYK	[0x02] Color conversion is CMYK.
	CCS_HSV	[0x03] Color conversion is HSV.
	CCS_HLS	[0x04] Color conversion is HLS.
	CCS_YIQ	[0x05] Color conversion is YIQ.
	CCS_CMY	[0x06] Color conversion is CMY.
	CCS_LAB	[0x07] Color conversion is CIELAB.
	CCS_XYZ	[0x08] Color conversion is CIEXYZ.
	CCS_YCCK	[0x0B] Color conversion is YCCK.
	CCS_BGR	[0x0C] Color conversion is BGR.
	CCS_UYVY	[0x0E] Color conversion is UYVY.
	CCS_YUY2	[0x09] Color conversion is YUY2.
	CCS_YVU9	[0x0A] Color conversion is YVU9.
	CCS_YCC	[0x0F] Color conversion is YCC.
nDstFormat	Format of the output data. Possible values are:
	Value	Meaning
	CCS_RGB	[0x00] Color conversion is RGB.
	CCS_YUV	[0x01] Color conversion is YUV.
	CCS_CMYK	[0x02] Color conversion is CMYK.
	CCS_HSV	[0x03] Color conversion is HSV.
	CCS_HLS	[0x04] Color conversion is HLS.
	CCS_YIQ	[0x05] Color conversion is YIQ.
	CCS_CMY	[0x06] Color conversion is CMY.
	CCS_LAB	[0x07] Color conversion is CIELAB.
	CCS_XYZ	[0x08] Color conversion is CIEXYZ.
	CCS_BGR	[0x0C] Color conversion is BGR.
	CCS_UYVY	[0x0E] Color conversion is UYVY.
	CCS_YUY2	[0x09] Color conversion is YUY2.
	CCS_YVU9	[0x0A] Color conversion is YVU9.
	CCS_YCC	[0x0F] Color conversion is YCC.
pSrcBuf	Pointer to the buffer that references the input data.
pDstBuf	Pointer to the buffer to be updated with the converted data.
nWidth	Width of pixels to be processed.
nHeigh	Height of pixels to be processed.
nInAlign	Each scanline in the input buffer is a multiple of nInAlign bytes.
nOutAlign	Each scanline in the output buffer is a multiple of nOutAlign bytes.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

Converting from any color space to YCCK color space is currently not supported.

Required DLLs and Libraries

LTCLR

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions:	LColor::Convert, Class Members
Topics:	Working with Color Conversion Functions
	Raster Image Functions: Color Conversion

Example

L_VOID Fast_Convert_CMYKToRGB(L_UCHAR *pInput, L_UCHAR *pOutput, L_INT nWidth, L_INT nHeight)
{
   L_INT nRet = 0 ;
   /* direct conversion using built in options */
   nRet = LColor::ConvertDirect(CCS_CMYK, /* input color conversion */
                                 CCS_RGB, /*output color conversion */
                                 pInput, /*input buffer*/
                                 pOutput, /*output buffer*/
                                 nWidth, /*pixels width*/
                                 nHeight, /*pixels height*/
                                 0, /* 0 bytes align*/
                                 0); /*0 bytes align*/
}