ucw docs: Array sorter

[libucw.git] / images / signature.h

diff --git a/images/signature.h b/images/signature.h
index 5e3647d1d02e24d965cae6170ee8f1fc75cc2232..204174768a83c3e0ed22a276691afe5e9d22ccb2 100644 (file)
--- a/images/signature.h
+++ b/images/signature.h
@@ -22,40 +22,39 @@ struct image_vector {
   byte f[IMAGE_VEC_F];         /* texture features */
 } PACKED;
 
-/* Fetures for image regions (16 bytes) */
+/* Features for image regions (16 bytes) */
 struct image_region {
   byte f[IMAGE_VEC_F];         /* texture features - L, u, v, LH, HL, HH */
   byte h[IMAGE_REG_H];         /* shape/pos features - I1, I2, I3, X, Y */
   byte wa;                     /* normalized area percentage */
   byte wb;                     /* normalized weight */
-  byte reserved[3];
-} PACKED;
+};
 
 #define IMAGE_SIG_TEXTURED     0x1
 
-/* Image signature (16 + len * 16 bytes) */
+/* Image signature (usually 16 + len * 16 bytes) */
 struct image_signature {
-  byte len;                    /* Number of regions */
+  byte len;                    /* number of regions */
   byte flags;                  /* IMAGE_SIG_xxx */
-  u16 cols;                    /* Image width */
-  u16 rows;                    /* Image height */
-  u16 df;                      /* Average weighted f dist */
-  u16 dh;                      /* Average weighted h dist */
-  struct image_vector vec;     /* Average features of all regions... simple signature */
-  struct image_region reg[IMAGE_REG_MAX];/* Feature vector for every region */
-} PACKED;
+  u16 cols;                    /* image width */
+  u16 rows;                    /* image height */
+  u16 df;                      /* average weighted f dist */
+  u16 dh;                      /* average weighted h dist */
+  struct image_vector vec;     /* average features of all regions... simple signature */
+  struct image_region reg[IMAGE_REG_MAX];/* feature vector for every region */
+};
 
 struct image_cluster {
   union {
     struct {
-      s32 dot;                 /* Dot product of the splitting plane */
-      s8 vec[IMAGE_VEC_F];     /* Normal vector of the splitting plane */
-    } PACKED;
+      s32 dot;                 /* dot product of the splitting plane */
+      s8 vec[IMAGE_VEC_F];     /* normal vector of the splitting plane */
+    };
     struct {
-      u64 pos;                 /* Cluster size in bytes */
-    } PACKED;
-  } PACKED;
-} PACKED;
+      u64 pos;                 /* cluster size in bytes */
+    };
+  };
+};
 
 static inline uns
 image_signature_size(uns len)
@@ -107,9 +106,9 @@ struct image_sig_data {
 
 /* sig-init.c */
 
-int compute_image_signature(struct image_thread *thread, struct image_signature *sig, struct image *image);
+int compute_image_signature(struct image_context *ctx, struct image_signature *sig, struct image *image);
 
-int image_sig_init(struct image_thread *thread, struct image_sig_data *data, struct image *image);
+int image_sig_init(struct image_context *ctx, struct image_sig_data *data, struct image *image);
 void image_sig_preprocess(struct image_sig_data *data);
 void image_sig_finish(struct image_sig_data *data, struct image_signature *sig);
 void image_sig_cleanup(struct image_sig_data *data);