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A* -------------------------------------------------------------------
B* This file contains source code for the PyMOL computer program
C* copyright 1998-2000 by Warren Lyford Delano of DeLano Scientific. 
D* -------------------------------------------------------------------
E* It is unlawful to modify or remove this copyright notice.
F* -------------------------------------------------------------------
G* Please see the accompanying LICENSE file for further information. 
H* -------------------------------------------------------------------
I* Additional authors of this source file include:
Z* -------------------------------------------------------------------
#ifndef _H_Ray
#define _H_Ray


#define cRayMaxBasis 10

typedef struct CRay {
  void (*fSphere3fv)(struct CRay *ray,float *v,float r);
  void (*fCylinder3fv)(struct CRay *ray,float *v1,float *v2,float r,float *c1,float *c2);
  void (*fCustomCylinder3fv)(struct CRay *ray,float *v1,float *v2,float r,float *c1,
                             float *c2,int cap1,int cap2);
  void (*fSausage3fv)(struct CRay *ray,float *v1,float *v2,float r,float *c1,float *c2);
  void (*fColor3fv)(struct CRay *ray,float *c);
  void (*fTriangle3fv)(struct CRay *ray,
                                            float *v1,float *v2,float *v3,
                                            float *n1,float *n2,float *n3,
                                            float *c1,float *c2,float *c3);
  void (*fWobble)(struct CRay *ray,int mode,float *par);
  void (*fTransparentf)(struct CRay *ray,float t);
  void (*fCharacter)(struct CRay *ray,int char_id,float xorig,float yorig,float advance);
  CPrimitive *Primitive;
  int NPrimitive;
  CBasis *Basis;
  int NBasis;
  int *Vert2Prim;
  float CurColor[3];
  float ModelView[16];
  float Rotation[16];
  float Volume[6];
  float Range[3];
  int BigEndian;
  int Wobble;
  float WobbleParam[3];
  float Trans;
  float Random[256];
  int TTTFlag;
  float TTT[16];
  int Context;
  float AspRatio;
  float PixelRadius;
  float min_box[2];
  float max_box[2];
} CRay;

typedef struct {
  CRay *ray;
  int width,height;
  unsigned int *image;
  float front,back;
  unsigned int fore_mask;
  float *bkrd;
  unsigned int background;
  int border;
  int phase, n_thread;
  float spec_vector[3];
  int x_start,x_stop;
  int y_start,y_stop;
  unsigned int *edging;
  unsigned int edging_cutoff;
} CRayThreadInfo;

typedef struct {
  CBasis *basis;
  int *vert2prim;
  CPrimitive *prim;
  float *clipBox;
  unsigned int *image;
  unsigned int background;
  unsigned int bytes;
  int phase;
  CRay *ray;
} CRayHashThreadInfo;

typedef struct {
  unsigned int *image;
  unsigned int *image_copy;
  unsigned int width,height;
  int mag;
  int phase,n_thread;
  CRay *ray;
} CRayAntiThreadInfo;

CRay *RayNew(void);
void RayFree(CRay *I);
void RayPrepare(CRay *I,float v0,float v1,float v2,
                float v3,float v4,float v5,float *mat,float *rotMat,
                float aspRat,int ray_width);
void RayRender(CRay *I,int width,int height,unsigned int *image,
               float front,float back,double timing,float angle);
void RayRenderPOV(CRay *I,int width,int height,char **headerVLA,
                  char **charVLA,float front,float back,float fov,float angle);
void RayRenderTest(CRay *I,int width,int height,float front,float back,float fov);
void RaySetTTT(CRay *I,int flag,float *ttt);
void RaySetContext(CRay *I,int context);
void RayApplyContexToNormal(CRay *I,float *v);
void RayApplyContextToVertex(CRay *I,float *v);
void RayRenderColorTable(CRay *I,int width,int height,int *image);
int RayTraceThread(CRayThreadInfo *T);
int RayGetNPrimitives(CRay *I);

int RayHashThread(CRayHashThreadInfo *T);
int RayAntiThread(CRayAntiThreadInfo *T);


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