1 files changed, 58 insertions, 0 deletions
diff --git a/src/sim/sim.h b/src/sim/sim.h
new file mode 100644
index 0000000..16189a1
--- /dev/null
+++ b/src/sim/sim.h
@@ -0,0 +1,58 @@
+/** \file
+ * \brief Simulation Base Driver
+ *
+ * See Copyright Notice in cd.h
+ */
+
+#ifndef __SIM_H
+#define __SIM_H
+
+
+struct _cdSimulation
+{
+  cdTT_Text* tt_text; /* TrueType Font Simulation using FreeType library */
+
+  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);
+void simGetPenPos(cdCanvas* canvas, int x, int y, const char* s, FT_Matrix *matrix, FT_Vector *pen);
+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;
+
+void simAddSegment(simLineSegment* segment, int x1, int y1, int x2, int y2, int *y_max, int *y_min);
+int simSegmentInc(simLineSegment* segment, cdCanvas* canvas, int y);
+
+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
+