lib/modules/swfdraw.c

   1 // swfdraw.c
   2 void swf_DrawerInit(SWFSHAPEDRAWER*draw, TAG*tag)
   3 {
   4     draw->tagfree = 0;
   5     if(tag == 0) {
   6         tag = swf_InsertTag(0, ST_DEFINESHAPE);
   7         draw->tagfree = 1;
   8     }
   9     draw->tag = tag;
  10     swf_ShapeNew(&draw->shape);
  11     draw->pos = to;
  12
  13     swf_SetU8(draw->tag,0);
  14     draw->shape->bits.fill = 1;
  15     draw->shape->bits.line = 0;
  16     swf_ShapeSetStyle(draw->tag,draw->shape,0,1,0);
  17 }
  18 void swf_DrawerMoveTo(SWFSHAPEDRAWER*draw, FPOINT * to)
  19 {
  20     swf_ShapeSetMove(draw->tag,draw->shape,(int)(to->x*20), (int)(to->y*20));
  21     draw->pos = to;
  22 }
  23 void swf_DrawerLineTo(SWFSHAPEDRAWER*draw, FPOINT * to)
  24 {
  25     swf_ShapeSetMove(draw->tag,draw->shape,(int)(to->x*20), (int)(to->y*20));
  26     draw->pos = to;
  27 }
  28 void swf_DrawerSplineTo(SWFSHAPEDRAWER*draw, FPOINT * c1, FPOINT*  to)
  29 {
  30     swf_ShapeSetSpline(draw->tag,draw->shape,
  31             (int)(c1->x*20), (int)(c1->y*20),
  32             (int)(to->x*20), (int)(to->y*20),
  33             );
  34     draw->pos = to;
  35 }
  36 void swf_DrawerCubicTo(SWFSHAPEDRAWER*draw, FPOINT*  c1, FPOINT* c2, FPOINT*  to)
  37 {
  38     draw->pos = to;
  39 }
  40 void swf_DrawerConicTo(SWFSHAPEDRAWER*draw, FPOINT* c, FPOINT*  to)
  41 {
  42     FPOINT* pos = draw->pos;
  43     FPOINT c1,c2;
  44     c1.x = (pos->x + 2 * c->x) / 3;
  45     c1.y = (pos->y + 2 * c->y) / 3;
  46     c2.x = (2 * c->x + to->x) / 3;
  47     c2.y = (2 * c->y + to->y) / 3;
  48     swf_DrawerCubicTo(draw, &c1,&c2,to);
  49     draw->pos = to;
  50     return 0;
  51 }
  52 void swf_DrawerFinish(SWFSHAPEDRAWER*draw)
  53 {
  54     swf_ShapeSetEnd(draw->tag);
  55 }
  56 void swf_Drawer2Shape(SWFSHAPEDRAWER*draw, SHAPE*shape)
  57 {
  58     memset(shape, 0, sizeof(SHAPE));
  59     shape->bitlen = (draw->tag->len-1)*8;
  60     shape->data = (U8*)malloc(draw->tag->len-1);
  61     memcpy(shape->data, &draw->tag->data[1], draw->tag->len-1);
  62 }
  63 void swf_DrawerFree(SWFSHAPEDRAWER*draw)
  64 {
  65     if(draw->tagfree) {
  66         swf_DeleteTag(tag);
  67         draw->tag = 0;
  68     }
  69     swf_ShapeFree(draw->s);
  70     draw->s = 0;
  71 }