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/** \file
* \brief Simulation Base Driver
*
* See Copyright Notice in cd.h
*/
#ifndef __SIM_H
#define __SIM_H
struct _cdSimulation
{
int antialias;
cdCanvas *canvas;
const char* font_map[100];
int font_map_n;
/* horizontal line draw functions */
void (*SolidLine)(cdCanvas* canvas, int xmin, int y, int xmax);
void (*PatternLine)(cdCanvas* canvas, int xmin, int xmax, int y, int pw, const long *pattern);
void (*StippleLine)(cdCanvas* canvas, int xmin, int xmax, int y, int pw, const unsigned char *stipple);
void (*HatchLine)(cdCanvas* canvas, int xmin, int xmax, int y, unsigned char hatch);
};
#define simRotateHatchN(_x,_n) ((_x) = ((_x) << (_n)) | ((_x) >> (8-(_n))))
void simFillDrawAAPixel(cdCanvas *canvas, int x, int y, unsigned short alpha_weigth);
void simFillHorizLine(cdSimulation* simulation, int xmin, int y, int xmax);
int simIsPointInPolyWind(cdPoint* poly, int n, int x, int y);
/* list of non-horizontal line segments */
typedef struct _simLineSegment
{
int x1, y1; /* always y1 < y2 */
int x2, y2; /* (x2,y2) is not included in the segment to avoid duplicated intersections */
int x; /* incremental x from x2 to x1 */
int DeltaX, DeltaY, XDir;
unsigned short ErrorInc, ErrorAcc;
} simLineSegment;
int simAddSegment(simLineSegment* segment, int x1, int y1, int x2, int y2, int *y_max, int *y_min);
int simSegmentInc(simLineSegment* segment);
int simPolyFindHorizontalIntervals(simLineSegment *segments, int n_seg, int* xx, int *hh, int y, int height);
void simPolyMakeSegments(simLineSegment *segments, int *n_seg, cdPoint* poly, int n, int *max_hh, int *y_max, int *y_min);
void simPolyFill(cdSimulation* simulation, cdPoint* poly, int n);
void simLineThin(cdCanvas* canvas, int x1, int y1, int x2, int y2);
void simLineThick(cdCanvas* canvas, int x1, int y1, int x2, int y2);
void simfLineThin(cdCanvas* canvas, double x1, double y1, double x2, double y2, int *last_xi_a, int *last_yi_a, int *last_xi_b, int *last_yi_b);
extern int simLineStyleNoReset;
int simCalcEllipseNumSegments(cdCanvas* canvas, int xc, int yc, int width, int height);
#endif
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