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/** \file
* \brief Color Mode Utilities
*
* See Copyright Notice in im_lib.h
* $Id: im_colormode.cpp,v 1.1 2008/10/17 06:10:16 scuri Exp $
*/
#include <stdlib.h>
#include <memory.h>
#include <string.h>
#include "im.h"
#include "im_util.h"
const char* imColorModeSpaceName(int color_mode)
{
int color_space = imColorModeSpace(color_mode);
switch (color_space)
{
case IM_RGB: return "RGB";
case IM_MAP: return "Map";
case IM_GRAY: return "Gray";
case IM_BINARY: return "Binary";
case IM_CMYK: return "CMYK";
case IM_YCBCR: return "Y'CbCr";
case IM_LAB: return "CIE L*a*b*";
case IM_LUV: return "CIE L*u*v*";
case IM_XYZ: return "CIE XYZ";
}
return NULL;
}
int imColorModeDepth(int color_mode)
{
int depth = 0;
int color_space = imColorModeSpace(color_mode);
switch (color_space)
{
case IM_GRAY:
case IM_BINARY:
case IM_MAP:
depth = 1;
break;
case IM_CMYK:
depth = 4;
break;
default:
depth = 3;
break;
}
if (imColorModeHasAlpha(color_mode))
depth++;
return depth;
}
int imColorModeToBitmap(int color_mode)
{
int color_space = imColorModeSpace(color_mode);
switch (color_space)
{
case IM_BINARY:
case IM_GRAY:
case IM_MAP:
return color_space;
default:
return IM_RGB;
}
}
int imColorModeIsBitmap(int color_mode, int data_type)
{
if (imColorModeSpace(color_mode) == IM_BINARY ||
imColorModeSpace(color_mode) == IM_MAP)
return 1;
if ((imColorModeSpace(color_mode) == IM_RGB ||
imColorModeSpace(color_mode) == IM_GRAY) &&
(data_type == IM_BYTE))
return 1;
return 0;
}
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