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/***********************************************************************
FONCTION :
----------
File Include OpenGl_telem_util :
REMARQUES:
----------
HISTORIQUE DES MODIFICATIONS :
--------------------------------
xx-xx-xx : xxx ; Creation.
22-04-96 : FMN ; Ajout TelReadImage TelDrawImage
23-12-96 : CAL ; Probleme dans la macro vecmag
12-02-97 : FMN ; Suppression TelEnquireFacilities()
07-10-97 : FMN ; Simplification WNT
23-12-97 : FMN ; Suppression TelBackInteriorStyle, TelBackInteriorStyleIndex
************************************************************************/
#ifndef OPENGL_TELEM_UTIL_H
#define OPENGL_TELEM_UTIL_H
#ifndef IMP190100
#define IMP190100 /*GG To avoid too many REDRAW in immediat mode,
// Add TelMakeFrontAndBackBufCurrent() function
*/
#endif
#define BUC60823 /* GG 05/03/01 Avoid to crash in normal computation
// between confused points
*/
#include <math.h>
#include <GL/gl.h>
#ifndef WNT
#include <GL/glx.h>
#endif
#include <OpenGl_telem.hxx>
/*
* ShortRealLast () = 3.40282346638528860e+38
* ShortRealFirst () = 3.40282346638528860e+38
*/
#define shortreallast() (3.e+38)
#define shortrealfirst() (-3.e+38)
/* vector manipulation macros */
#define square(a) ((a)*(a))
/* add */
#define vecadd(a,b,c) { (a)[0]=(b)[0]+(c)[0]; \
(a)[1]=(b)[1]+(c)[1]; \
(a)[2]=(b)[2]+(c)[2]; }
/* subtract */
#define vecsub(a,b,c) { (a)[0]=(b)[0]-(c)[0]; \
(a)[1]=(b)[1]-(c)[1]; \
(a)[2]=(b)[2]-(c)[2]; }
/* dot product */
#define vecdot(a,b) ((a)[0]*(b)[0]+(a)[1]*(b)[1]+(a)[2]*(b)[2])
/* cross product */
#define veccrs(a,b,c) { Tfloat x, y, z; \
x = (b)[1]*(c)[2] - (b)[2]*(c)[1]; \
y = (b)[2]*(c)[0] - (b)[0]*(c)[2]; \
z = (b)[0]*(c)[1] - (b)[1]*(c)[0]; \
(a)[0] = x; \
(a)[1] = y; \
(a)[2] = z; }
/* scale */
#define vecscl(a,b) { (b)[0] *= (a); (b)[1] *= (a); (b)[2] *= (a); }
/* magnitude square */
#define vecmg2(a) (square((a)[0])+square((a)[1])+square((a)[2]))
/* magnitude */
#define vecmag(a) (sqrt((double)vecmg2(a)))
/* normalize */
#ifdef BUC60823
#define vecnrmd(a,d) ( d = (Tfloat)vecmag(a), \
( d > 1e-10 ? (a[0] /= d, a[1] /= d, a[2] /= d, d) : (Tfloat)0. ) )
#define vecnrm(a) { Tfloat d; vecnrmd(a,d); }
#else
#define vecnrm(a) { Tfloat d; d = ( Tfloat )vecmag(a); \
(a)[0] /= d; (a)[1] /= d; (a)[2] /= d; }
#endif
/* angle between two vectors */
#define vecang(a,b,d) { d = (Tfloat)(vecmag(a)*vecmag(b)); \
d = vecdot(a,b)/d; \
d = d < -1.0F ? -1.0F : d > 1.0F ? 1.0F : d; \
d = ( Tfloat )acos(d); }
/* point along a vector at a distance */
#define vecgnd(a,b,c,d) { Tfloat w; w = d/vecmag(c); \
(a)[0] = (b)[0]+(c)[0]*w; \
(a)[1] = (b)[1]+(c)[1]*w; \
(a)[2] = (b)[2]+(c)[2]*w; }
/* copy */
#define veccpy(a,b) ((a)[0]=(b)[0],(a)[1]=(b)[1],(a)[2]=(b)[2])
/* end vector macros */
typedef struct
{
Tmatrix3 mat;
}
Tmatrix3Struct;
#define matcpy(d,s) { *((Tmatrix3Struct*)(d)) = *((Tmatrix3Struct*)(s)); }
/*
(d)[0][0]=(s)[0][0],(d)[0][1]=(s)[0][1],(d)[0][2]=(s)[0][2],(d)[0][3]=(s)[0][3],
(d)[1][0]=(s)[1][0],(d)[1][1]=(s)[1][1],(d)[1][2]=(s)[1][2],(d)[1][3]=(s)[1][3],
(d)[2][0]=(s)[2][0],(d)[2][1]=(s)[2][1],(d)[2][2]=(s)[2][2],(d)[2][3]=(s)[2][3],
(d)[3][0]=(s)[3][0],(d)[3][1]=(s)[3][1],(d)[3][2]=(s)[3][2],(d)[3][3]=(s)[3][3]
*/
#define matdump(m) { \
int i, j; \
for (i=0; i<4; i++) {\
printf ("\t"); \
for (j=0; j<4; j++) \
printf ("%f ", m[i][j]); \
printf ("\n"); \
} \
}
extern Tint TelRemdupnames( Tint*, Tint ); /* list, num */
#ifdef BUC60823
extern int TelGetPolygonNormal( tel_point, Tint*, Tint, Tfloat* );
extern int TelGetNormal( Tfloat*, Tfloat*, Tfloat*, Tfloat* );
#else
extern void TelGetNormal( Tfloat*, Tfloat*, Tfloat*, Tfloat* );
#endif
/* point1, point2, point3, normal */
extern Tint TelIsBackFace( Tmatrix3, Tfloat* ); /* normal */
extern Tint TelIsBackFacePerspective( Tmatrix3, Tfloat*, Tfloat*, Tfloat* );
/* matrix, point 1, point 2, point 3 */
extern void TelMultiplymat3( Tmatrix3, Tmatrix3, Tmatrix3 );
/* mat out, mat in, mat in */
extern void TelTransposemat3( Tmatrix3 ); /* mat in out */
extern void TelTranpt3( Tfloat [4], Tfloat [4], Tmatrix3 ); /* out, in, mat */
extern void TelInitWS( Tint, Tint, Tint, Tfloat, Tfloat, Tfloat );
/* ws, width, height, bgcolr, bgcolg, bgcolb */
extern void TelSwapBuffers( Tint );
extern void TelCopyBuffers( Tint, GLenum, GLenum,
Tfloat, Tfloat, Tfloat, Tfloat, Tfloat, Tfloat, Tint );
extern TStatus TelProjectionRaster( Tint ws, Tfloat x, Tfloat y, Tfloat z,
Tfloat *xr, Tfloat *yr);
extern TStatus TelUnProjectionRaster( Tint ws, Tint xr, Tint yr,
Tfloat *x, Tfloat *y, Tfloat *z);
TStatus
TelUnProjectionRasterWithRay(Tint ws, Tint xr, Tint yr, Tfloat *x, Tfloat *y, Tfloat *z,
Tfloat *dx, Tfloat *dy, Tfloat *dz);
extern Tint TelBackBufferRestored(void);
extern void TelSetBackBufferRestored( Tint );
extern void TelEnable( Tint );
extern void TelDisable( Tint );
extern void TelFlush( Tint );
extern void TelSetFrontFaceAttri(
Tint, /* interior_style */
Tint, /* back_interior_style */
Tint, /* interior_index */
Tint, /* back_interior_index */
Tint, /* front_shading_method */
Tint, /* back_shading_method */
Tint, /* front_lighting_model */
Tint, /* back_lighting_model */
tel_surf_prop, /* surf_prop */
tel_surf_prop, /* back_surf_prop */
tel_colour, /* interior_colour */
tel_colour /* back_interior_colour */
);
extern void TelSetBackFaceAttri(
Tint, /* interior_style */
Tint, /* back_interior_style */
Tint, /* interior_index */
Tint, /* back_interior_index */
Tint, /* front_shading_method */
Tint, /* back_shading_method */
Tint, /* front_lighting_model */
Tint, /* back_lighting_model */
tel_surf_prop, /* surf_prop */
tel_surf_prop, /* back_surf_prop */
tel_colour, /* interior_colour */
tel_colour /* back_interior_colour */
);
extern void TelReadImage(Tint , GLenum , Tint , Tint , Tint , Tint , unsigned int *);
extern void TelDrawImage(Tint , GLenum , Tint , Tint , Tint , Tint , unsigned int *);
extern void TelReadDepths(Tint , Tint , Tint , Tint , Tint , float *);
extern void TelMakeFrontBufCurrent(Tint );
extern void TelMakeBackBufCurrent(Tint );
#ifdef IMP190100
extern void TelMakeFrontAndBackBufCurrent(Tint );
#endif
#ifndef WNT
extern void TelSetPixmapDBParams(Display *dpy,
Window window,
int width, int height, int depth, GC gc,
Pixmap pixmap,
GLXPixmap glxpixmap,
GLXContext ctx);
extern GLXPixmap TelGetGLXPixmap(void);
extern void TelSetPixmapDB(int flag);
extern int TelTestPixmapDB(void);
extern void TelDrawBuffer(GLenum buf);
#endif /* WNT*/
#endif
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