poly added (convinent for me, it's not finished yet)

Rev: src/modules/Image/poly.c:1.1

.gitattributes

@@ -219,6 +219,7 @@ testfont binary
 /src/modules/Image/operator.c foreign_ident
 /src/modules/Image/orient.c foreign_ident
 /src/modules/Image/pattern.c foreign_ident
+/src/modules/Image/poly.c foreign_ident
 /src/modules/Image/polyfill.c foreign_ident
 /src/modules/Image/testsuite.in.in foreign_ident
 /src/modules/Java/Makefile.in foreign_ident

src/modules/Image/poly.c

+/*
+**! module Image
+**! note
+**!	$Id: poly.c,v 1.1 1999/07/16 11:43:50 mirar Exp $
+**! class Poly
+**!
+*/
+
+#include "global.h"
+
+RCSID("$Id: poly.c,v 1.1 1999/07/16 11:43:50 mirar Exp $");
+
+#include "image_machine.h"
+
+#include <math.h>
+
+#include "stralloc.h"
+#include "pike_macros.h"
+#include "object.h"
+#include "constants.h"
+#include "interpret.h"
+#include "svalue.h"
+#include "array.h"
+#include "mapping.h"
+#include "threads.h"
+#include "builtin_functions.h"
+#include "dmalloc.h"
+#include "operators.h"
+#include "module_support.h"
+#include "opcodes.h"
+
+#include "image.h"
+#include "colortable.h"
+#include "initstuff.h"
+
+#ifdef PFLOAT
+#undef PFLOAT
+#endif
+#define PFLOAT double
+
+#ifdef THIS
+#undef THIS
+#endif
+#define THIS ((struct poly *)(fp->current_storage))
+#define THISOBJ (fp->current_object)
+
+struct poly
+{
+   PFLOAT xmin,ymin,xmax,ymax;
+
+   struct vertex
+   {
+      PFLOAT x,y;
+      struct line *firstdown;
+      struct line *firstup;
+   } *vertex;
+   int nvertex;
+   int nallocatedvertex;
+};
+
+/*****************************************************************/
+
+static void init_poly(struct object *dummy)
+{
+   THIS->xmin=THIS->ymin=0;
+   THIS->xmax=THIS->ymax=-1;
+
+   THIS->vertex=NULL;
+   THIS->nvertex=THIS->nallocatedvertex=0;
+}
+
+static void exit_poly(struct object *dummy)
+{
+}
+
+/*****************************************************************/
+
+#define CMP(A,B) (((A)->y<(B)->y)?-1:((A)->y<(B)->y)?1: \
+	          ((A)->x<(B)->x)?-1:((A)->x<(B)->x)?1:0)
+#define TYPE struct vertex
+#define ID image_sort_vertex
+#include "../../fsort_template.h"
+#undef CMP
+#undef TYPE
+#undef ID
+
+static void image_poly_xor(INT32 args);
+
+static void image_poly_create(INT32 args)
+{
+   int n=0,i,j=0;
+   struct vertex *v;
+   struct array *a;
+
+   /* this is to get the correct error message */
+   for (i=0; i<args; i++)
+      if (sp[i-args].type!=T_ARRAY) 
+	 SIMPLE_BAD_ARG_ERROR("Poly",i+1,"array");
+
+   if (args>1) /* make two poly objects and xor' them */
+   {
+      /* shrink and build args>1 to one poly */
+      push_object(clone_object(image_poly_program,args-1));
+      stack_swap();
+      /* really create this object */
+      image_poly_create(1); 
+      /* only the above created poly (args>1) left on stack, xor with this  */
+      image_poly_xor(1); 
+      pop_stack(); 
+      return;
+   }
+
+   if (!args) return; /* empty */
+
+   a=sp[-1].u.array;
+   v=THIS->vertex=(struct vertex*)xalloc(sizeof(struct vertex)*a->size/2);
+
+   for (n=i=0; i<a->size-1; i+=2,n++)
+   {
+      if (a->item[i].type==T_INT)
+	 v[n].x=(PFLOAT)a->item[i].u.integer;
+      else if (a->item[i].type==T_FLOAT)
+	 v[n].x=(PFLOAT)a->item[i].u.float_number;
+      else
+	 v[n].x=0.0;
+
+      if (a->item[i+1].type==T_INT)
+	 v[n].y=(PFLOAT)a->item[i+1].u.integer;
+      else if (a->item[i+1].type==T_FLOAT)
+	 v[n].y=(PFLOAT)a->item[i+1].u.float_number;
+      else
+	 v[n].y=0.0;
+   }
+   
+   if (n)
+   {
+      image_sort_vertex(v,v+n-1);
+
+      for (i=0; i<n; i++)
+	 fprintf(stderr,"%g,%g\n",THIS->vertex[i].x,THIS->vertex[i].y);
+
+      for (i=j=1; i<n; i++)
+	 if (v[i].x!=v[i-1].x || v[i].y!=v[i-1].y)
+	    v[j++]=v[i];
+
+      fprintf(stderr,"---\n");
+   }
+
+   THIS->nvertex=j;
+   THIS->nallocatedvertex=n;
+
+   for (i=0; i<THIS->nvertex; i++)
+      fprintf(stderr,"%g,%g\n",THIS->vertex[i].x,THIS->vertex[i].y);
+}
+
+/*****************************************************************/
+
+static void image_poly_xor(INT32 args)
+{
+   pop_n_elems(args);
+   ref_push_object(THISOBJ);
+}
+
+/*****************************************************************/
+
+static void image_poly_cast(INT32 args)
+{
+   error("unimplemented");
+}
+
+/*****************************************************************/
+
+void init_image_poly(void)
+{
+   ADD_STORAGE(struct poly);
+   set_init_callback(init_poly);
+   set_exit_callback(exit_poly);
+
+   /* setup */
+   ADD_FUNCTION("create",image_poly_create,tFuncV(tNone,tArray,tVoid),0);
+
+   /* query */
+   ADD_FUNCTION("cast",image_poly_cast,tFunc(tStr,tArray),0);
+}
+
+void exit_image_poly(void)
+{
+}
+