102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
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/**********************************Module**********************************\
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*
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* ssflwbox.h
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*
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* 3D FlowerBox screen saver
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* Base header file
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*
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* History:
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* Wed Jul 19 14:50:27 1995 -by- Drew Bliss [drewb]
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* Created
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*
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* Copyright (c) 1995 Microsoft Corporation
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*
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\**************************************************************************/
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#ifndef __SSFLWBOX_H__
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#define __SSFLWBOX_H__
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#ifndef PI
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#define PI 3.14159265358979323846
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#endif
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// Minimum and maximum number of side subdivisions
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#define MINSUBDIV 2
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#define MAXSUBDIV 10
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// Maximum values allowed
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#define MAXSIDES 8
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#define MAXSPTS ((MAXSUBDIV+1)*(MAXSUBDIV+1))
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#define MAXPTS (MAXSIDES*MAXSPTS)
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#define MAXSFACES (MAXSUBDIV*MAXSUBDIV)
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#define MAXFACES (MAXSIDES*MAXSFACES)
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#define MAXFPTS 4
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// Number of colors used in checkerboarding
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#define NCCOLS 2
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// Allow floating point type configurability
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typedef GLfloat FLT;
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typedef struct
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{
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FLT x, y, z;
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} PT3;
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// Configurable options
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typedef struct _CONFIG
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{
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BOOL smooth_colors;
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BOOL triangle_colors;
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BOOL cycle_colors;
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BOOL spin;
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BOOL bloom;
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int subdiv;
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int color_pick;
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int image_size;
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int geom;
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int two_sided;
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} CONFIG;
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extern CONFIG config;
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extern GLfloat checker_cols[MAXSIDES][NCCOLS][4];
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extern GLfloat side_cols[MAXSIDES][4];
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extern GLfloat solid_cols[4];
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#if defined(assert)
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#undef assert
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#endif
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#if DBG
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#define dprintf(args) dprintf_out args
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void dprintf_out(char *fmt, ...);
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#define assert(e) if (!(e)) assert_failed(__FILE__, __LINE__, #e); else 0
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void assert_failed(char *file, int line, char *msg);
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#else
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#define dprintf(args)
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#define assert(e)
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#endif
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#define DIMA(a) (sizeof(a)/sizeof(a[0]))
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/******************************Public*Routine******************************\
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*
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* Basic vector math macros
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*
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* History:
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* Wed Jul 19 14:49:49 1995 -by- Drew Bliss [drewb]
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* Created
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*
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\**************************************************************************/
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#define V3Sub(a, b, r) \
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((r)->x = (a)->x-(b)->x, (r)->y = (a)->y-(b)->y, (r)->z = (a)->z-(b)->z)
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#define V3Add(a, b, r) \
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((r)->x = (a)->x+(b)->x, (r)->y = (a)->y+(b)->y, (r)->z = (a)->z+(b)->z)
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#define V3Cross(a, b, r) \
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((r)->x = (a)->y*(b)->z-(b)->y*(a)->z,\
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(r)->y = (a)->z*(b)->x-(b)->z*(a)->x,\
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(r)->z = (a)->x*(b)->y-(b)->x*(a)->y)
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extern FLT V3Len(PT3 *v);
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#endif // __SSFLWBOX_H__
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