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 typedef enum corner_status {
  22   CORNER_UNUSED,
  23   CORNER_PROJECTED,
  24   CORNER_EXACT,
  25   CORNER_SETTLED,
  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_estimator_s {
  38   int x1;
  39   int y1;
  40   int x2;
  41   int y2;
  42   int x3;
  43   int y3;
  44   //int mul; /* estimate: x1,y1 + mul * diff */
  45 } sparrow_estimator_t;
  46
  47 typedef struct sparrow_corner_s {
  48   int x;
  49   int y;
  50   /*dyr -> dy to next point right
  51    dxd ->dx to next point down */
  52   int dxr;
  53   int dyr;
  54   int dxd;
  55   int dyd;
  56   corner_status_t status;
  57 } sparrow_corner_t;
  58
  59 typedef struct sparrow_voter_s {
  60   int x;
  61   int y;
  62   guint32 signal;
  63 } sparrow_voter_t;
  64
  65 typedef struct sparrow_cluster_s {
  66   int n;
  67   sparrow_voter_t voters[8];
  68 } sparrow_cluster_t;
  69
  70
  71 typedef union sparrow_signal_s {
  72   guint16 v_signal;
  73   guint16 h_signal;
  74 } sparrow_signal_t;
  75
  76
  77 typedef struct sparrow_intersect_s {
  78   guint16 lines[2];
  79   guint16 signal[2];
  80 } sparrow_intersect_t;
  81
  82 typedef struct sparrow_line_s {
  83   gint offset;
  84   sparrow_axis_t dir;
  85   gint index;
  86 } sparrow_line_t;
  87
  88 /*condensed version of <struct sparrow_find_lines_s> for saving: contains no
  89   pointers or other unnecessary things that might vary in size across
  90   architectures. */
  91 typedef struct sparrow_fl_condensed {
  92   gint32 n_vlines;
  93   gint32 n_hlines;
  94 } sparrow_fl_condensed_t;
  95
  96 typedef struct sparrow_find_lines_s {
  97   sparrow_line_t *h_lines;
  98   sparrow_line_t *v_lines;
  99   sparrow_line_t **shuffled_lines;
 100   int current;
 101   int n_lines;
 102   int n_vlines;
 103   int n_hlines;
 104   gint shift1;
 105   gint shift2;
 106   sparrow_intersect_t *map;
 107   sparrow_corner_t *mesh;
 108   sparrow_cluster_t *clusters;
 109   IplImage *debug;
 110   IplImage *threshold;
 111   IplImage *working;
 112   IplImage *input;
 113   edges_state_t state;
 114 } sparrow_find_lines_t;
 115
 116
 117 #define DEBUG_FIND_LINES(fl)GST_DEBUG(          \
 118   "fl:\n"                                       \
 119   "  sparrow_line_t *h_lines: %p\n"             \
 120   "  sparrow_line_t *v_lines: %p\n"             \
 121   "  sparrow_line_t **shuffled_lines: %p\n"     \
 122   "  int current: %d\n"                         \
 123   "  int n_lines: %d\n"                         \
 124   "  int n_vlines: %d\n"                        \
 125   "  int n_hlines: %d\n"                        \
 126   "  gint shift1: %d\n"                         \
 127   "  gint shift2: %d\n"                         \
 128   "  sparrow_intersect_t *map: %p\n"            \
 129   "  sparrow_corner_t *mesh: %p\n"              \
 130   "  sparrow_cluster_t *clusters: %p\n"         \
 131   "  IplImage *debug: %p\n"                     \
 132   "  IplImage *threshold: %p\n"                 \
 133   "  IplImage *working: %p\n"                   \
 134   "  IplImage *input: %p\n"                     \
 135   "  edges_state_t state: %d\n"                 \
 136   ,                                             \
 137   (fl)->h_lines,                                  \
 138   (fl)->v_lines,                                  \
 139   (fl)->shuffled_lines,                           \
 140   (fl)->current,                                  \
 141   (fl)->n_lines,                                  \
 142   (fl)->n_vlines,                                 \
 143   (fl)->n_hlines,                                 \
 144   (fl)->shift1,                                   \
 145   (fl)->shift2,                                   \
 146   (fl)->map,                                      \
 147   (fl)->mesh,                                     \
 148   (fl)->clusters,                                 \
 149   (fl)->debug,                                    \
 150   (fl)->threshold,                                \
 151   (fl)->working,                                  \
 152   (fl)->input,                                    \
 153   (fl)->state                                     \
 154 )
 155 //#undef debug_find_lines
 156 //#define debug_find_lines(x) /* */
 157
 158
 159 #endif /*have this .h*/