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/**
* $Id:
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2008 Blender Foundation.
* All rights reserved.
*
*
* Contributor(s): Blender Foundation
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef ED_VIEW3D_H
#define ED_VIEW3D_H
/* ********* exports for space_view3d/ module ********** */
struct ARegion;
struct View3D;
struct RegionView3D;
struct ViewContext;
struct BPoint;
struct Nurb;
struct BezTriple;
struct EditVert;
struct EditEdge;
struct EditFace;
struct ImBuf;
struct Scene;
struct bContext;
/* for derivedmesh drawing callbacks, for view3d_select, .... */
typedef struct ViewContext {
Scene *scene;
Object *obact;
Object *obedit;
struct ARegion *ar;
struct View3D *v3d;
struct RegionView3D *rv3d;
struct EditMesh *em;
short mval[2];
} ViewContext;
typedef struct ViewDepths {
unsigned short w, h;
float *depths;
double depth_range[2];
char damaged;
} ViewDepths;
float *give_cursor(struct Scene *scene, struct View3D *v3d);
void initgrabz(struct RegionView3D *rv3d, float x, float y, float z);
void window_to_3d(struct ARegion *ar, float *vec, short mx, short my);
void window_to_3d_delta(struct ARegion *ar, float *vec, short mx, short my);
/* Depth buffer */
float read_cached_depth(struct ViewContext *vc, int x, int y);
void request_depth_update(struct RegionView3D *rv3d);
/* Projection */
#define IS_CLIPPED 12000
void project_short(struct ARegion *ar, float *vec, short *adr);
void project_short_noclip(struct ARegion *ar, float *vec, short *adr);
void project_int(struct ARegion *ar, float *vec, int *adr);
void project_int_noclip(struct ARegion *ar, float *vec, int *adr);
void project_float(struct ARegion *ar, float *vec, float *adr);
void project_float_noclip(struct ARegion *ar, float *vec, float *adr);
void viewline(struct ARegion *ar, struct View3D *v3d, short mval[2], float ray_start[3], float ray_end[3]);
void viewray(struct ARegion *ar, struct View3D *v3d, short mval[2], float ray_start[3], float ray_normal[3]);
int get_view3d_viewplane(struct View3D *v3d, struct RegionView3D *rv3d, int winxi, int winyi, rctf *viewplane, float *clipsta, float *clipend, float *pixsize);
/* drawobject.c itterators */
void mesh_foreachScreenVert(struct ViewContext *vc, void (*func)(void *userData, struct EditVert *eve, int x, int y, int index), void *userData, int clipVerts);
void mesh_foreachScreenEdge(struct ViewContext *vc, void (*func)(void *userData, struct EditEdge *eed, int x0, int y0, int x1, int y1, int index), void *userData, int clipVerts);
void mesh_foreachScreenFace(struct ViewContext *vc, void (*func)(void *userData, struct EditFace *efa, int x, int y, int index), void *userData);
void nurbs_foreachScreenVert(struct ViewContext *vc, void (*func)(void *userData, struct Nurb *nu, struct BPoint *bp, struct BezTriple *bezt, int beztindex, int x, int y), void *userData);
void lattice_foreachScreenVert(struct ViewContext *vc, void (*func)(void *userData, struct BPoint *bp, int x, int y), void *userData);
int view3d_test_clipping(struct RegionView3D *rv3d, float *vec);
void view3d_align_axis_to_vector(struct View3D *v3d, struct RegionView3D *rv3d, int axisidx, float vec[3]);
void drawcircball(int mode, float *cent, float rad, float tmat[][4]);
/* backbuffer select and draw support */
void view3d_validate_backbuf(struct ViewContext *vc);
struct ImBuf *view3d_read_backbuf(struct ViewContext *vc, short xmin, short ymin, short xmax, short ymax);
unsigned int view3d_sample_backbuf_rect(struct ViewContext *vc, short mval[2], int size, unsigned int min, unsigned int max, int *dist, short strict,
void *handle, unsigned int (*indextest)(void *handle, unsigned int index));
unsigned int view3d_sample_backbuf(struct ViewContext *vc, int x, int y);
/* select */
#define MAXPICKBUF 10000
short view3d_opengl_select(struct ViewContext *vc, unsigned int *buffer, unsigned int bufsize, rcti *input);
void view3d_set_viewcontext(struct bContext *C, struct ViewContext *vc);
void view3d_operator_needs_opengl(const struct bContext *C);
/* XXX should move to arithb.c */
int edge_inside_circle(short centx, short centy, short rad, short x1, short y1, short x2, short y2);
/* modes */
void ED_view3d_exit_paint_modes(struct bContext *C);
#endif /* ED_VIEW3D_H */
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