images/duplicates.h

   1 #ifndef _IMAGES_DUPLICATES_H
   2 #define _IMAGES_DUPLICATES_H
   3
   4 #ifdef CONFIG_UCW_CLEAN_ABI
   5 #define image_dup_compare ucw_image_dup_compare
   6 #define image_dup_context_cleanup ucw_image_dup_context_cleanup
   7 #define image_dup_context_init ucw_image_dup_context_init
   8 #define image_dup_estimate_size ucw_image_dup_estimate_size
   9 #define image_dup_new ucw_image_dup_new
  10 #endif
  11
  12 enum image_dup_flags {
  13   IMAGE_DUP_TRANS_ID =          0x0001,
  14   IMAGE_DUP_FLIP_X =            0x0002,
  15   IMAGE_DUP_FLIP_Y =            0x0004,
  16   IMAGE_DUP_ROT_180 =           0x0008,
  17   IMAGE_DUP_FLIP_BACK =         0x0010,
  18   IMAGE_DUP_ROT_CCW =           0x0020,
  19   IMAGE_DUP_ROT_CW =            0x0040,
  20   IMAGE_DUP_FLIP_SLASH =        0x0080,
  21   IMAGE_DUP_TRANS_ALL =         0x00ff,
  22   IMAGE_DUP_SCALE =             0x0100,
  23   IMAGE_DUP_WANT_ALL =          0x0200,
  24 };
  25
  26 struct image_dup_context {
  27   struct image_context *ic;
  28   uns flags;
  29   uns ratio_threshold;
  30   uns error_threshold;
  31   uns qtree_limit;
  32   u64 sum_depth;
  33   u64 sum_pixels;
  34   uns error;
  35 };
  36
  37 struct image_dup {
  38   struct image image;
  39   byte *tab_pixels;
  40   u32 tab_cols;
  41   u32 tab_rows;
  42   u32 tab_row_size;
  43   u32 tab_size;
  44 };
  45
  46 /* dup-init.c */
  47
  48 void image_dup_context_init(struct image_context *ic, struct image_dup_context *ctx);
  49 void image_dup_context_cleanup(struct image_dup_context *ctx);
  50
  51 uns image_dup_estimate_size(uns cols, uns rows, uns same_size_compare, uns qtree_limit);
  52 uns image_dup_new(struct image_dup_context *ctx, struct image *image, void *buffer, uns same_size_compare);
  53
  54 /* dup-cmp.c */
  55
  56 uns image_dup_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct image_dup *dup2);
  57
  58 /* internals */
  59
  60 static inline byte *image_dup_block(struct image_dup *dup, uns tab_col, uns tab_row)
  61 {
  62   return dup->tab_pixels + (dup->tab_row_size << tab_row) + (3 << (tab_row + tab_col));
  63 }
  64
  65 #endif