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/*
$Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef BKE_UTILDEFINES_H
#define BKE_UTILDEFINES_H
#ifndef FALSE
#define FALSE 0
#endif
#ifndef TRUE
#define TRUE 1
#endif
/* these values need to be hardcoded in structs, dna does not recognize defines */
/* also defined in DNA_space_types.h */
#ifndef FILE_MAXDIR
#define FILE_MAXDIR 160
#define FILE_MAXFILE 80
#define FILE_MAX 240
#endif
#define ELEM(a, b, c) ( (a)==(b) || (a)==(c) )
#define ELEM3(a, b, c, d) ( ELEM(a, b, c) || (a)==(d) )
#define ELEM4(a, b, c, d, e) ( ELEM(a, b, c) || ELEM(a, d, e) )
#define ELEM5(a, b, c, d, e, f) ( ELEM(a, b, c) || ELEM3(a, d, e, f) )
#define ELEM6(a, b, c, d, e, f, g) ( ELEM(a, b, c) || ELEM4(a, d, e, f, g) )
#define ELEM7(a, b, c, d, e, f, g, h) ( ELEM3(a, b, c, d) || ELEM4(a, e, f, g, h) )
#define ELEM8(a, b, c, d, e, f, g, h, i) ( ELEM4(a, b, c, d, e) || ELEM4(a, f, g, h, i) )
#define ELEM9(a, b, c, d, e, f, g, h, i, j) ( ELEM4(a, b, c, d, e) || ELEM5(a, f, g, h, i, j) )
#define ELEM10(a, b, c, d, e, f, g, h, i, j, k) ( ELEM4(a, b, c, d, e) || ELEM6(a, f, g, h, i, j, k) )
#define ELEM11(a, b, c, d, e, f, g, h, i, j, k, l) ( ELEM4(a, b, c, d, e) || ELEM7(a, f, g, h, i, j, k, l) )
/* shift around elements */
#define SHIFT3(type, a, b, c) { type tmp; tmp = a; a = c; c = b; b = tmp; }
#define SHIFT4(type, a, b, c, d) { type tmp; tmp = a; a = d; d = c; c = b; b = tmp; }
/* string compare */
#define STREQ(str, a) ( strcmp((str), (a))==0 )
#define STREQ2(str, a, b) ( STREQ(str, a) || STREQ(str, b) )
#define STREQ3(str, a, b, c) ( STREQ2(str, a, b) || STREQ(str, c) )
/* min/max */
#define MIN2(x,y) ( (x)<(y) ? (x) : (y) )
#define MIN3(x,y,z) MIN2( MIN2((x),(y)) , (z) )
#define MIN4(x,y,z,a) MIN2( MIN2((x),(y)) , MIN2((z),(a)) )
#define MAX2(x,y) ( (x)>(y) ? (x) : (y) )
#define MAX3(x,y,z) MAX2( MAX2((x),(y)) , (z) )
#define MAX4(x,y,z,a) MAX2( MAX2((x),(y)) , MAX2((z),(a)) )
#define INIT_MINMAX(min, max) { (min)[0]= (min)[1]= (min)[2]= 1.0e30f; (max)[0]= (max)[1]= (max)[2]= -1.0e30f; }
#define INIT_MINMAX2(min, max) { (min)[0]= (min)[1]= 1.0e30f; (max)[0]= (max)[1]= -1.0e30f; }
#define DO_MINMAX(vec, min, max) { if( (min)[0]>(vec)[0] ) (min)[0]= (vec)[0]; \
if( (min)[1]>(vec)[1] ) (min)[1]= (vec)[1]; \
if( (min)[2]>(vec)[2] ) (min)[2]= (vec)[2]; \
if( (max)[0]<(vec)[0] ) (max)[0]= (vec)[0]; \
if( (max)[1]<(vec)[1] ) (max)[1]= (vec)[1]; \
if( (max)[2]<(vec)[2] ) (max)[2]= (vec)[2]; } \
#define DO_MINMAX2(vec, min, max) { if( (min)[0]>(vec)[0] ) (min)[0]= (vec)[0]; \
if( (min)[1]>(vec)[1] ) (min)[1]= (vec)[1]; \
if( (max)[0]<(vec)[0] ) (max)[0]= (vec)[0]; \
if( (max)[1]<(vec)[1] ) (max)[1]= (vec)[1]; }
#define MINSIZE(val, size) ( ((val)>=0.0) ? (((val)<(size)) ? (size): (val)) : ( ((val)>(-size)) ? (-size) : (val)))
/* some math and copy defines */
#define SWAP(type, a, b) { type sw_ap; sw_ap=(a); (a)=(b); (b)=sw_ap; }
#define ABS(a) ( (a)<0 ? (-(a)) : (a) )
#define AVG2(x, y) ( 0.5 * ((x) + (y)) )
#define FTOCHAR(val) ((val)<=0.0f)? 0 : (((val)>(1.0f-0.5f/255.0f))? 255 : (char)((255.0f*(val))+0.5f))
#define VECCOPY(v1,v2) {*(v1)= *(v2); *(v1+1)= *(v2+1); *(v1+2)= *(v2+2);}
#define VECCOPY2D(v1,v2) {*(v1)= *(v2); *(v1+1)= *(v2+1);}
#define QUATCOPY(v1,v2) {*(v1)= *(v2); *(v1+1)= *(v2+1); *(v1+2)= *(v2+2); *(v1+3)= *(v2+3);}
#define LONGCOPY(a, b, c) {int lcpc=c, *lcpa=(int *)a, *lcpb=(int *)b; while(lcpc-->0) *(lcpa++)= *(lcpb++);}
#define VECADD(v1,v2,v3) {*(v1)= *(v2) + *(v3); *(v1+1)= *(v2+1) + *(v3+1); *(v1+2)= *(v2+2) + *(v3+2);}
#define VECSUB(v1,v2,v3) {*(v1)= *(v2) - *(v3); *(v1+1)= *(v2+1) - *(v3+1); *(v1+2)= *(v2+2) - *(v3+2);}
#define VECSUB2D(v1,v2,v3) {*(v1)= *(v2) - *(v3); *(v1+1)= *(v2+1) - *(v3+1);}
#define VECADDFAC(v1,v2,v3,fac) {*(v1)= *(v2) + *(v3)*(fac); *(v1+1)= *(v2+1) + *(v3+1)*(fac); *(v1+2)= *(v2+2) + *(v3+2)*(fac);}
#define QUATADDFAC(v1,v2,v3,fac) {*(v1)= *(v2) + *(v3)*(fac); *(v1+1)= *(v2+1) + *(v3+1)*(fac); *(v1+2)= *(v2+2) + *(v3+2)*(fac); *(v1+3)= *(v2+3) + *(v3+3)*(fac);}
#define INPR(v1, v2) ( (v1)[0]*(v2)[0] + (v1)[1]*(v2)[1] + (v1)[2]*(v2)[2] )
/* some misc stuff.... */
#define CLAMP(a, b, c) if((a)<(b)) (a)=(b); else if((a)>(c)) (a)=(c)
#define CLAMPIS(a, b, c) ((a)<(b) ? (b) : (a)>(c) ? (c) : (a))
#define CLAMPTEST(a, b, c) if((b)<(c)) {CLAMP(a, b, c);} else {CLAMP(a, c, b);}
#define IS_EQ(a,b) ((fabs((double)(a)-(b)) >= (double) FLT_EPSILON) ? 0 : 1)
#define IS_EQT(a, b, c) ((a > b)? (((a-b) <= c)? 1:0) : ((((b-a) <= c)? 1:0)))
#define IN_RANGE(a, b, c) ((b < c)? ((b<a && a<c)? 1:0) : ((c<a && a<b)? 1:0))
/* this weirdo pops up in two places ... */
#if !defined(WIN32) && !defined(__BeOS)
#ifndef O_BINARY
#define O_BINARY 0
#endif
#endif
/* INTEGER CODES */
#if defined(__sgi) || defined (__sparc) || defined (__sparc__) || defined (__PPC__) || defined (__ppc__) || defined (__hppa__) || defined (__BIG_ENDIAN__)
/* Big Endian */
#define MAKE_ID(a,b,c,d) ( (int)(a)<<24 | (int)(b)<<16 | (c)<<8 | (d) )
#else
/* Little Endian */
#define MAKE_ID(a,b,c,d) ( (int)(d)<<24 | (int)(c)<<16 | (b)<<8 | (a) )
#endif
#define ID_NEW(a) if( (a) && (a)->id.newid ) (a)= (void *)(a)->id.newid
#define FORM MAKE_ID('F','O','R','M')
#define DDG1 MAKE_ID('3','D','G','1')
#define DDG2 MAKE_ID('3','D','G','2')
#define DDG3 MAKE_ID('3','D','G','3')
#define DDG4 MAKE_ID('3','D','G','4')
#define GOUR MAKE_ID('G','O','U','R')
#define BLEN MAKE_ID('B','L','E','N')
#define DER_ MAKE_ID('D','E','R','_')
#define V100 MAKE_ID('V','1','0','0')
#define DATA MAKE_ID('D','A','T','A')
#define GLOB MAKE_ID('G','L','O','B')
#define IMAG MAKE_ID('I','M','A','G')
#define DNA1 MAKE_ID('D','N','A','1')
#define TEST MAKE_ID('T','E','S','T')
#define REND MAKE_ID('R','E','N','D')
#define USER MAKE_ID('U','S','E','R')
#define ENDB MAKE_ID('E','N','D','B')
/* This one rotates the bytes in an int */
#define SWITCH_INT(a) { \
char s_i, *p_i; \
p_i= (char *)&(a); \
s_i=p_i[0]; p_i[0]=p_i[3]; p_i[3]=s_i; \
s_i=p_i[1]; p_i[1]=p_i[2]; p_i[2]=s_i; }
#define SWITCH_SHORT(a) { \
char s_i, *p_i; \
p_i= (char *)&(a); \
s_i=p_i[0]; p_i[0]=p_i[1]; p_i[1]=s_i; }
/* Bit operations */
#define BTST(a,b) ( ( (a) & 1<<(b) )!=0 )
#define BNTST(a,b) ( ( (a) & 1<<(b) )==0 )
#define BTST2(a,b,c) ( BTST( (a), (b) ) || BTST( (a), (c) ) )
#define BSET(a,b) ( (a) | 1<<(b) )
#define BCLR(a,b) ( (a) & ~(1<<(b)) )
/* bit-row */
#define BROW(min, max) (((max)>=31? 0xFFFFFFFF: (1<<(max+1))-1) - ((min)? ((1<<(min))-1):0) )
#ifdef GS
#undef GS
#endif
#define GS(a) (*((short *)(a)))
/* Warning-free macros for storing ints in pointers. Use these _only_
* for storing an int in a pointer, not a pointer in an int (64bit)! */
#define SET_INT_IN_POINTER(i) ((void*)(intptr_t)(i))
#define GET_INT_FROM_POINTER(i) ((int)(intptr_t)(i))
#endif
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