t_dd_imm_vb.c File Reference

Defines
#define	CLIP_DOTPROD(K, A, B, C, D)
#define	POLY_CLIP(PLANE, A, B, C, D)
#define	LINE_CLIP(PLANE, A, B, C, D)
Functions
static void TAG()	clip_draw_line (GLcontext *ctx, TNL_VERTEX *I, TNL_VERTEX *J, GLuint mask)
static void TAG()	clip_draw_triangle (GLcontext *ctx, TNL_VERTEX *v0, TNL_VERTEX *v1, TNL_VERTEX *v2, GLuint mask)
static __inline void TAG()	draw_triangle (GLcontext *ctx, TNL_VERTEX *v0, TNL_VERTEX *v1, TNL_VERTEX *v2)
static __inline void TAG()	draw_line (GLcontext *ctx, TNL_VERTEX *v0, TNL_VERTEX *v1)

---

Define Documentation

#define CLIP_DOTPROD	(	K,
		A,
		B,
		C,
		D		)

Value:

(CLIP_X(K)*A + CLIP_Y(K)*B +    \
    CLIP_Z(K)*C + CLIP_W(K)*D)

#define LINE_CLIP	(	PLANE,
		A,
		B,
		C,
		D		)

Value:

do {                                                    \
   if (mask & PLANE) {                                  \
      GLfloat dpI = CLIP_DOTPROD( I, A, B, C, D );      \
      GLfloat dpJ = CLIP_DOTPROD( J, A, B, C, D );      \
                                                        \
      if (DIFFERENT_SIGNS(dpI, dpJ)) {                  \
         TNL_VERTEX *O = verts++;                       \
         if (NEGATIVE(dpJ)) {                           \
            GLfloat t = dpI / (dpI - dpJ);              \
            INTERP( ctx, t, O, I, J );  \
            J = O;                                      \
         } else {                                       \
            GLfloat t = dpJ / (dpJ - dpI);              \
            INTERP( ctx, t, O, J, I );  \
            I = O;                                      \
         }                                              \
      }                                                 \
      else if (NEGATIVE(dpI))                           \
         return;                                        \
  }                                                     \
} while (0)

#define POLY_CLIP	(	PLANE,
		A,
		B,
		C,
		D		)

---

Function Documentation

static void TAG() clip_draw_line	(	GLcontext *	ctx,
		TNL_VERTEX *	I,
		TNL_VERTEX *	J,
		GLuint	mask
	)			[static]

static void TAG() clip_draw_triangle	(	GLcontext *	ctx,
		TNL_VERTEX *	v0,
		TNL_VERTEX *	v1,
		TNL_VERTEX *	v2,
		GLuint	mask
	)			[static]

static __inline void TAG() draw_line	(	GLcontext *	ctx,
		TNL_VERTEX *	v0,
		TNL_VERTEX *	v1
	)			[static]

static __inline void TAG() draw_triangle	(	GLcontext *	ctx,
		TNL_VERTEX *	v0,
		TNL_VERTEX *	v1,
		TNL_VERTEX *	v2
	)			[static]

---