Issue 2311: improved "Decoding..." progress bar

rtengine/klt/pnmio.h

@@ -0,0 +1,56 @@
+/*********************************************************************
+ * pnmio.h
+ *********************************************************************/
+
+#ifndef _PNMIO_H_
+#define _PNMIO_H_
+
+#include <cstdio>
+
+/**********
+ * With pgmReadFile and pgmRead, setting img to NULL causes memory
+ * to be allocated
+ */
+
+/**********
+ * used for reading from/writing to files
+ */
+unsigned char* pgmReadFile(
+  const char *fname,
+  unsigned char *img,
+  int *ncols, 
+  int *nrows);
+void pgmWriteFile(
+  const char *fname,
+  const unsigned char *img,
+  int ncols,
+  int nrows);
+void ppmWriteFileRGB(
+  const char *fname,
+  const unsigned char *redimg,
+  const unsigned char *greenimg,
+  const unsigned char *blueimg,
+  int ncols,
+  int nrows);
+
+/**********
+ * used for communicating with stdin and stdout
+ */
+unsigned char* pgmRead(
+  FILE *fp,
+  unsigned char *img,
+  int *ncols, int *nrows);
+void pgmWrite(
+  FILE *fp,
+  const unsigned char *img,
+  int ncols,
+  int nrows);
+void ppmWrite(
+  FILE *fp,
+  const unsigned char *redimg,
+  const unsigned char *greenimg,
+  const unsigned char *blueimg,
+  int ncols,
+  int nrows);
+
+#endif