/*
 * $Id: others.c 394 2009-11-26 02:07:55Z HansR $
 *
 * $Date: 2009-11-26 02:07:55 +0000 (Thu, 26 Nov 2009) $
 * $Revision: 394 $
 *
 * (C) 1999 by Hyperion
 * All rights reserved
 *
 * This file is part of the MiniGL library project
 * See the file Licence.txt for more details
 *
 */

#include "sysinc.h"
#include "util.h"

int32 mapMGLZTestToW3D(int32 mglZ, int32 defZ)
{
	switch (mglZ) {
		case GL_NEVER:    return W3D_Z_NEVER;    break;
		case GL_LESS:     return W3D_Z_LESS;     break;
		case GL_EQUAL:    return W3D_Z_EQUAL;    break;
		case GL_LEQUAL:   return W3D_Z_LEQUAL;   break;
		case GL_GREATER:  return W3D_Z_GREATER;  break;
		case GL_NOTEQUAL: return W3D_Z_NOTEQUAL; break;
		case GL_GEQUAL:   return W3D_Z_GEQUAL;   break;
		case GL_ALWAYS:   return W3D_Z_ALWAYS;   break;
		default:
			break;
	}
	return defZ;
}

int32 mapMGLATestToW3D(int32 mglA, int32 defA)
{
	switch (mglA) {
		case GL_NEVER:    return W3D_A_NEVER;    break;
		case GL_LESS:     return W3D_A_LESS;     break;
		case GL_EQUAL:    return W3D_A_EQUAL;    break;
		case GL_LEQUAL:   return W3D_A_LEQUAL;   break;
		case GL_GREATER:  return W3D_A_GREATER;  break;
		case GL_NOTEQUAL: return W3D_A_NOTEQUAL; break;
		case GL_GEQUAL:   return W3D_A_GEQUAL;   break;
		case GL_ALWAYS:   return W3D_A_ALWAYS;   break;
		default:
			break;
	}
	return defA;
}

int32 mapMGLBlendSourceToW3D(int32 mglSrc, int32 defSrc)
{
	switch (mglSrc) {
		case GL_ZERO:                return W3D_ZERO;
		case GL_ONE:                 return W3D_ONE;
		case GL_SRC_COLOR:           return W3D_SRC_COLOR;
		case GL_ONE_MINUS_SRC_COLOR: return W3D_ONE_MINUS_SRC_COLOR;
		case GL_DST_COLOR:           return W3D_DST_COLOR;
		case GL_ONE_MINUS_DST_COLOR: return W3D_ONE_MINUS_DST_COLOR;
		case GL_SRC_ALPHA:           return W3D_SRC_ALPHA;
		case GL_ONE_MINUS_SRC_ALPHA: return W3D_ONE_MINUS_SRC_ALPHA;
		case GL_DST_ALPHA:           return W3D_DST_ALPHA;
		case GL_ONE_MINUS_DST_ALPHA: return W3D_ONE_MINUS_DST_ALPHA;
		case GL_SRC_ALPHA_SATURATE:  return W3D_SRC_ALPHA_SATURATE;
		default:
			break;
	}
	return defSrc;
}

int32 mapMGLBlendDestToW3D(int32 mglDst, int32 defDst)
{
	switch (mglDst) {
		case GL_ZERO:                return W3D_ZERO;
		case GL_ONE:                 return W3D_ONE;
		case GL_SRC_COLOR:           return W3D_SRC_COLOR;
		case GL_ONE_MINUS_SRC_COLOR: return W3D_ONE_MINUS_SRC_COLOR;
		case GL_DST_COLOR:           return W3D_DST_COLOR;
		case GL_ONE_MINUS_DST_COLOR: return W3D_ONE_MINUS_DST_COLOR;
		case GL_SRC_ALPHA:           return W3D_SRC_ALPHA;
		case GL_ONE_MINUS_SRC_ALPHA: return W3D_ONE_MINUS_SRC_ALPHA;
		case GL_DST_ALPHA:           return W3D_DST_ALPHA;
		case GL_ONE_MINUS_DST_ALPHA: return W3D_ONE_MINUS_DST_ALPHA;
		default:
			break;
	}
	return defDst;
}

int32 mapMGLLogicOpToW3D(int32 mglL, int32 defL)
{
	switch (mglL) {
		case GL_CLEAR:         return W3D_LO_CLEAR;
		case GL_AND:           return W3D_LO_AND;
		case GL_AND_REVERSE:   return W3D_LO_AND_REVERSE;
		case GL_COPY:          return W3D_LO_COPY;
		case GL_AND_INVERTED:  return W3D_LO_AND_INVERTED;
		case GL_NOOP:          return W3D_LO_NOOP;
		case GL_XOR:           return W3D_LO_XOR;
		case GL_OR:            return W3D_LO_OR;
		case GL_NOR:           return W3D_LO_NOR;
		case GL_EQUIV:         return W3D_LO_EQUIV;
		case GL_INVERT:        return W3D_LO_INVERT;
		case GL_OR_REVERSE:    return W3D_LO_OR_REVERSE;
		case GL_COPY_INVERTED: return W3D_LO_COPY_INVERTED;
		case GL_OR_INVERTED:   return W3D_LO_OR_INVERTED;
		case GL_NAND:          return W3D_LO_NAND;
		case GL_SET:           return W3D_LO_SET;
		default:
			break;
	}
	return defL;
}

int32 mapMGLTexEnvToW3D(int32 mglEnv, int32 defEnv)
{
	switch (mglEnv) {
		case GL_REPLACE:  return W3D_REPLACE;
		case GL_MODULATE: return W3D_MODULATE;
		case GL_DECAL:    return W3D_DECAL;
		case GL_BLEND:    return W3D_BLEND;
		case GL_ADD:      return W3D_ADD;
		default:
			break;
	}
	return defEnv;
}