factor out DEBUG_DEFINE_DEBUGF

[ypp-sc-tools.db-live.git] / pctb / ocr.h

diff --git a/pctb/ocr.h b/pctb/ocr.h
index a03f1f508dfc5e350f589a9a458c8b138a1783e7..93b158b6a4ee220d0d15466310adb5295d79371e 100644 (file)
--- a/pctb/ocr.h
+++ b/pctb/ocr.h
@@ -1,18 +1,33 @@
+/*
+ * ocr.c forms a mostly-self-contained bit
+ * so we put its declarations in this separate file
+ */
+
 #ifndef OCR_H
 #define OCR_H
 
+
 #define _GNU_SOURCE
 
-#include <pam.h>
-#include <stdint.h>
-#include <inttypes.h>
-#include <assert.h>
 #include <string.h>
-#include <stdlib.h>
 #include <stdio.h>
+#include <errno.h>
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <inttypes.h>
+
 #include <sys/types.h>
 #include <sys/wait.h>
 
+
+typedef struct {
+  int w,h;
+  char d[];
+} CanonImage;
+
 typedef uint32_t Pixcol;
 #define PSPIXCOL(priscan) priscan##32
 
@@ -22,10 +37,12 @@ typedef struct {
   unsigned ctxmap; /* match context index */
 } OcrResultGlyph;
 
+
 typedef const struct OcrCellTypeInfo *OcrCellType;
 extern const struct OcrCellTypeInfo ocr_celltype_text;
 extern const struct OcrCellTypeInfo ocr_celltype_number;
 
+
 typedef struct OcrReader OcrReader;
 OcrReader *ocr_init(int h);
 
@@ -34,11 +51,43 @@ OcrResultGlyph *ocr(OcrReader *rd, OcrCellType, int w, Pixcol cols[]);
    * array is valid until next call to ocr()
    */
 
+
+/*----- debugging arrangements, rather contingent -----*/
+
+#define DEBUG_FLAG_LIST                                \
+   DF(ocr)                                     \
+   DF(rect)                                    \
+   DF(callout)
+
+enum {
+#define DF(f) dbg__shift_##f,
+  DEBUG_FLAG_LIST
+#undef DF
+};
+enum {
+#define DF(f) dbg_##f = 1 << dbg__shift_##f,
+  DEBUG_FLAG_LIST
+#undef DF
+};
+
+unsigned debug_flags;
+
+#define DEBUGP(f) (!!(debug_flags & dbg_##f))
+
 void debug_flush(void);
 
 #define eassert assert
-#define debug stdout
+#define debug stderr
 
 const char *get_vardir(void);
 
+#define DEBUG_DEFINE_DEBUGF(f)                                         \
+  static void vdebugf(const char *fmt, va_list al) {                   \
+    if (DEBUGP(f))                                                     \
+      vfprintf(debug,fmt,al);                                          \
+  }                                                                    \
+  static void debugf(const char *fmt, ...) {                           \
+    va_list al;  va_start(al,fmt);  vdebugf(fmt,al);  va_end(al);      \
+  }
+
 #endif /*OCR_H*/