edges.h

   1 #ifndef __SPARROW_EDGES_H__
   2 #define __SPARROW_EDGES_H__
   3
   4 #define SAFETY_LAG 3;
   5 #define SIG_WEIGHT 2
   6
   7 /* for discarding outliers */
   8 #define OUTLIER_RADIUS 7
   9 #define OUTLIER_THRESHOLD (OUTLIER_RADIUS * OUTLIER_RADIUS)
  10
  11 #define BAD_PIXEL 0xffff
  12
  13 #define FL_DUMPFILE "/tmp/edges.dump"
  14
  15 #define COLOUR_QUANT  1
  16 #define COLOUR_MASK  (0xff >> COLOUR_QUANT)
  17
  18 /*XXX should dither */
  19 #define QUANTISE_DELTA(d)(((d) + LINE_PERIOD / 2) / LINE_PERIOD)
  20
  21
  22 typedef enum corner_status {
  23   CORNER_UNUSED,
  24   CORNER_PROJECTED,
  25   CORNER_EXACT,
  26 } corner_status_t;
  27
  28 typedef enum edges_state {
  29   EDGES_FIND_NOISE,
  30   EDGES_FIND_LINES,
  31   EDGES_FIND_CORNERS,
  32   EDGES_WAIT_FOR_PLAY,
  33
  34   EDGES_NEXT_STATE,
  35 } edges_state_t;
  36
  37 typedef struct sparrow_corner_s {
  38   int x;
  39   int y;
  40   /*dyr -> dy to next point right
  41    dxd ->dx to next point down */
  42   int dxr;
  43   int dyr;
  44   int dxd;
  45   int dyd;
  46   corner_status_t status;
  47 } sparrow_corner_t;
  48
  49 typedef struct sparrow_voter_s {
  50   int x;
  51   int y;
  52   guint32 signal;
  53 } sparrow_voter_t;
  54
  55 typedef struct sparrow_cluster_s {
  56   int n;
  57   sparrow_voter_t voters[8];
  58 } sparrow_cluster_t;
  59
  60
  61 typedef union sparrow_signal_s {
  62   guint16 v_signal;
  63   guint16 h_signal;
  64 } sparrow_signal_t;
  65
  66
  67 typedef struct sparrow_intersect_s {
  68   guint16 lines[2];
  69   guint16 signal[2];
  70 } sparrow_intersect_t;
  71
  72 typedef struct sparrow_line_s {
  73   gint offset;
  74   sparrow_axis_t dir;
  75   gint index;
  76 } sparrow_line_t;
  77
  78 /*condensed version of <struct sparrow_find_lines_s> for saving: contains no
  79   pointers or other unnecessary things that might vary in size across
  80   architectures. */
  81 typedef struct sparrow_fl_condensed {
  82   gint32 n_vlines;
  83   gint32 n_hlines;
  84 } sparrow_fl_condensed_t;
  85
  86 typedef struct sparrow_find_lines_s {
  87   sparrow_line_t *h_lines;
  88   sparrow_line_t *v_lines;
  89   sparrow_line_t **shuffled_lines;
  90   int current;
  91   int n_lines;
  92   int n_vlines;
  93   int n_hlines;
  94   gint shift1;
  95   gint shift2;
  96   sparrow_intersect_t *map;
  97   sparrow_corner_t *mesh;
  98   sparrow_cluster_t *clusters;
  99   IplImage *debug;
 100   IplImage *threshold;
 101   IplImage *working;
 102   IplImage *input;
 103   edges_state_t state;
 104 } sparrow_find_lines_t;
 105
 106
 107 #define DEBUG_FIND_LINES(fl)GST_DEBUG(          \
 108   "fl:\n"                                       \
 109   "  sparrow_line_t *h_lines: %p\n"             \
 110   "  sparrow_line_t *v_lines: %p\n"             \
 111   "  sparrow_line_t **shuffled_lines: %p\n"     \
 112   "  int current: %d\n"                         \
 113   "  int n_lines: %d\n"                         \
 114   "  int n_vlines: %d\n"                        \
 115   "  int n_hlines: %d\n"                        \
 116   "  gint shift1: %d\n"                         \
 117   "  gint shift2: %d\n"                         \
 118   "  sparrow_intersect_t *map: %p\n"            \
 119   "  sparrow_corner_t *mesh: %p\n"              \
 120   "  sparrow_cluster_t *clusters: %p\n"         \
 121   "  IplImage *debug: %p\n"                     \
 122   "  IplImage *threshold: %p\n"                 \
 123   "  IplImage *working: %p\n"                   \
 124   "  IplImage *input: %p\n"                     \
 125   "  edges_state_t state: %d\n"                 \
 126   ,                                             \
 127   (fl)->h_lines,                                  \
 128   (fl)->v_lines,                                  \
 129   (fl)->shuffled_lines,                           \
 130   (fl)->current,                                  \
 131   (fl)->n_lines,                                  \
 132   (fl)->n_vlines,                                 \
 133   (fl)->n_hlines,                                 \
 134   (fl)->shift1,                                   \
 135   (fl)->shift2,                                   \
 136   (fl)->map,                                      \
 137   (fl)->mesh,                                     \
 138   (fl)->clusters,                                 \
 139   (fl)->debug,                                    \
 140   (fl)->threshold,                                \
 141   (fl)->working,                                  \
 142   (fl)->input,                                    \
 143   (fl)->state                                     \
 144 )
 145 //#undef debug_find_lines
 146 //#define debug_find_lines(x) /* */
 147
 148
 149 #endif /*have this .h*/