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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_Scene
#define _H_Scene


typedef struct {
  unsigned char *data;
  int size;
  int width, height;
  int stereo; /* indicates data actually contains two back to back full-screen images */
} ImageType;

#define cSceneViewSize 25
typedef float SceneViewType[cSceneViewSize];
/* all information required to define the geometry of a particular view,
   for shipping to and from python as a list of floats
   0-15 = 4x4 rotation matrix 
   16-18 = position
   19-21 = origin
   22    = front plane
   23    = rear plane
   24    = orthoscopic flag 

int SceneHasImage(PyMOLGlobals *G);
int SceneInit(PyMOLGlobals *G);
void SceneDone(PyMOLGlobals *G);
void SceneUpdate(PyMOLGlobals *G);
int SceneRenderCached(PyMOLGlobals *G);
void SceneRender(PyMOLGlobals *G,Picking *pick,int x,int y,
                 Multipick *smp,int oversize_width, int oversize_height);
void SceneSetFrame(PyMOLGlobals *G,int mode,int frame);
int SceneSetNames(PyMOLGlobals *G,PyObject *list);
int SceneGetFrame(PyMOLGlobals *G);
int SceneGetState(PyMOLGlobals *G);

void SceneDirty(PyMOLGlobals *G); /* scene dirty, but leave the overlay if one exists */
void SceneInvalidate(PyMOLGlobals *G); /* scene dirty and remove the overlay */
void SceneChanged(PyMOLGlobals *G); /* update 3D objects */

void SceneCountFrames(PyMOLGlobals *G) ;
int SceneGetNFrame(PyMOLGlobals *G, int *has_movie);
void SceneSetMatrix(PyMOLGlobals *G,float *);
float *SceneGetMatrix(PyMOLGlobals *G);

void SceneReshape(Block *block,int width,int height);
float SceneGetScreenVertexScale(PyMOLGlobals *G,float *v1);

void SceneTest(PyMOLGlobals *G);
void SceneIdle(PyMOLGlobals *G);
void SceneFree(PyMOLGlobals *G);
void SceneRay(PyMOLGlobals *G,int width,int height,int mode,
              char **headerVLA,char **charVLA,
              float angle,float shift,int quiet,
              G3dPrimitive **g3d,int show_timing,int antialias);
void SceneDoRay(PyMOLGlobals *G,int width,int height,int mode,
                char **headerVLA,char **charVLA,
                float angle,float shift,int quiet,
                G3dPrimitive **g3d,int show_timing,int antialias);
int SceneDeferRay(PyMOLGlobals *G,
                   int ray_width,
                   int ray_height,
                   int mode,
                   float angle,
                   float shift,
                   int quiet,
                   int show_timing,
                   int antialias);
void SceneMakeMovieImage(PyMOLGlobals *G,int show_timing);

void ScenePNG(PyMOLGlobals *G,char *png,float dpi,int quiet);
int SceneCopyExternal(PyMOLGlobals *G,int width, int height,int rowbytes,
                  unsigned char *dest,int mode);

void SceneResetMatrix(PyMOLGlobals *G);

void SceneRestartFrameTimer(PyMOLGlobals *G);

void ScenePerspective(PyMOLGlobals *G,int flag);
void SceneGetEyeNormal(PyMOLGlobals *G,float *v1,float *normal);

void SceneRotate(PyMOLGlobals *G,float angle,float x,float y,float z);
void SceneTranslate(PyMOLGlobals *G,float x,float y, float z);
void SceneClip(PyMOLGlobals *G,int plane,float movement,char *sele,int state);
void SceneGetImageSize(PyMOLGlobals *G,int *width,int *height);

void SceneScale(PyMOLGlobals *G,float scale);
void SceneResetNormal(PyMOLGlobals *G,int lines);

int SceneObjectAdd(PyMOLGlobals *G,CObject *obj);
int SceneObjectDel(PyMOLGlobals *G,CObject *obj);
int SceneObjectIsActive(PyMOLGlobals *G,CObject *obj);
void SceneOriginSet(PyMOLGlobals *G,float *origin,int preserve);
void SceneOriginGet(PyMOLGlobals *G,float *origin);
void SceneWindowSphere(PyMOLGlobals *G,float *location,float radius);
void SceneRelocate(PyMOLGlobals *G,float *location);
Block *SceneGetBlock(PyMOLGlobals *G);
void SceneApplyMatrix(PyMOLGlobals *G,float *m);
void SceneSetStereo(PyMOLGlobals *G,int flag);
int SceneGetStereo(PyMOLGlobals *G);
void SceneDontCopyNext(PyMOLGlobals *G);
void ScenePrepareExit(PyMOLGlobals *G);
void SceneGetViewNormal(PyMOLGlobals *G,float *v);
void SceneClipSet(PyMOLGlobals *G,float front,float back);
void SceneGetView(PyMOLGlobals *G,SceneViewType view);
void SceneSetView(PyMOLGlobals *G,SceneViewType view,
                  int quiet,float animate,int hand);

void SceneToViewElem(PyMOLGlobals *G,CViewElem *elem);
void SceneFromViewElem(PyMOLGlobals *G,CViewElem *elem);
void SceneGetPos(PyMOLGlobals *G,float *pos);
void SceneGetWidthHeight(PyMOLGlobals *G,int *width,int *height);
int SceneMultipick(PyMOLGlobals *G,Multipick *smp);
void SceneInvalidateCopy(PyMOLGlobals *G,int free_buffer);

void SceneSetCardInfo(PyMOLGlobals *G,char *vendor,char *renderer,char *version);
void SceneGetCardInfo(PyMOLGlobals *G,char **vendor,char **renderer,char **version);
int SceneLoadPNG(PyMOLGlobals *G,char *fname,int movie_flag,int stereo,int quiet);

void SceneSetDefaultView(PyMOLGlobals *G);
void SceneApplyRotMatrix(PyMOLGlobals *G,float *src,float *dst);
void SceneRovingDirty(PyMOLGlobals *G);
int SceneRovingCheckDirty(PyMOLGlobals *G);
void SceneRovingUpdate(PyMOLGlobals *G);
void SceneRovingChanged(PyMOLGlobals *G);
void SceneRovingPostpone(PyMOLGlobals *G);
void SceneCleanupStereo(PyMOLGlobals *G);
int SceneReinitialize(PyMOLGlobals *G);
void SceneUpdateStereoMode(PyMOLGlobals *G);
void SceneSuppressMovieFrame(PyMOLGlobals *G);
int SceneDeferClick(Block *block,int button,int x,int y,int mod);
int SceneDeferRelease(Block *block,int button,int x,int y,int mod);
int SceneDeferDrag(Block *block,int x,int y,int mod);
int SceneDeferImage(PyMOLGlobals *G,int width, int height, char *filename,int antialias, float dpi,int quiet);
char *SceneGetSeleModeKeyword(PyMOLGlobals *G);
void SceneUpdateStereo(PyMOLGlobals *G);
void ScenePushRasterMatrix(PyMOLGlobals *G,float *v);
void ScenePopRasterMatrix(PyMOLGlobals *G);
void ScenePrimeAnimation(PyMOLGlobals *G);
void SceneLoadAnimation(PyMOLGlobals *G, double duration,int hand);
int SceneMustDrawBoth(PyMOLGlobals *G);
float SceneGetReflectScaleValue(PyMOLGlobals *G,int limit);
float SceneGetSpecularValue(PyMOLGlobals *G,float spec,int limit);
void SceneAbortAnimation(PyMOLGlobals *G);
void SceneObjectUpdateThread(CObjectUpdateThreadInfo *T);


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