XML: Implemented a merger of element's contents.

[libucw.git] / images / dup-cmp.c

diff --git a/images/dup-cmp.c b/images/dup-cmp.c
index e05fae3de30f49c9e9c092f0d5cbb6474f1a5668..b71feaef9fa871fc4e4ff8675b593e956e9604ea 100644 (file)
--- a/images/dup-cmp.c
+++ b/images/dup-cmp.c
@@ -91,6 +91,7 @@ static int
 blocks_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct image_dup *dup2, uns tab_col, uns tab_row, uns trans)
 {
   DBG("blocks_compare(tab_col=%d tab_row=%d trans=%d)", tab_col, tab_row, trans);
+  ctx->sum_pixels += 1 << (tab_col + tab_row);
   byte *block1 = image_dup_block(dup1, tab_col, tab_row);
   byte *block2;
   int col_step, row_step;
@@ -103,6 +104,7 @@ blocks_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct ima
       case 0: ;
        uns err = (err_sum(block1, block2, 1 << (tab_col + tab_row)) >> (tab_col + tab_row));
        DBG("average error=%d", err);
+       ctx->error = err;
        return err <= ctx->error_threshold;
       case 1:
        col_step = -3;
@@ -143,6 +145,7 @@ blocks_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct ima
     }
   uns err = (err_sum_transformed(block1, block2, (1 << tab_col), (1 << tab_row), (3 << tab_col), col_step, row_step) >> (tab_col + tab_row));
   DBG("average error=%d", err);
+  ctx->error = err;
   return err <= ctx->error_threshold;
 }
 
@@ -151,6 +154,9 @@ same_size_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct
 {
   struct image *img1 = &dup1->image;
   struct image *img2 = &dup2->image;
+  if (!img1->pixels || !img2->pixels)
+    return 1;
+  ctx->sum_pixels += img1->cols * img1->rows;
   byte *block1 = img1->pixels;
   byte *block2 = img2->pixels;
   int col_step, row_step;
@@ -200,13 +206,14 @@ same_size_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct
     }
   uns err = (err_sum_transformed(block1, block2, img1->cols, img1->rows, img1->row_size, col_step, row_step) / ((u64)img1->cols * img1->rows));
   DBG("average error=%d", err);
+  ctx->error = err;
   return err <= ctx->error_threshold;
 }
 
 uns
 image_dup_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct image_dup *dup2)
 {
-  DBG("image_dup_compare()");
+  DBG("image_dup_compare(%p, %p)", dup1, dup2);
   if (!average_compare(ctx, dup1, dup2))
     return 0;
   struct image *img1 = &dup1->image;
@@ -239,8 +246,10 @@ image_dup_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct
        if (flags & (1 << t))
          {
            DBG("Testing trans %d", t);
-            for (uns i = MAX(cols, rows); i--; )
+           uns i = MAX(cols, rows), depth = 1;
+            while (i--)
               {
+               depth++;
                uns col = MAX(0, (int)(cols - i));
                uns row = MAX(0, (int)(rows - i));
                if (!blocks_compare(ctx, dup1, dup2, col, row, t))
@@ -256,6 +265,7 @@ image_dup_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct
                      break;
                  }
              }
+           ctx->sum_depth += depth;
          }
     }
   if (flags & 0xf0)
@@ -266,8 +276,10 @@ image_dup_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct
        if (flags & (1 << t))
          {
            DBG("Testing trans %d", t);
-            for (uns i = MAX(cols, rows); i--; )
+           uns i = MAX(cols, rows), depth = 1;
+            while (i--)
               {
+               depth++;
                uns col = MAX(0, (int)(cols - i));
                uns row = MAX(0, (int)(rows - i));
                if (!blocks_compare(ctx, dup1, dup2, col, row, t))
@@ -283,6 +295,7 @@ image_dup_compare(struct image_dup_context *ctx, struct image_dup *dup1, struct
                      break;
                  }
              }
+           ctx->sum_depth += depth;
          }
     }
   return result;