Diffstat (limited to 'noncore/apps/opie-reader/arith.h') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/apps/opie-reader/arith.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/noncore/apps/opie-reader/arith.h b/noncore/apps/opie-reader/arith.h new file mode 100644 index 0000000..19ca646 --- a/dev/null +++ b/noncore/apps/opie-reader/arith.h @@ -0,0 +1,43 @@ +/*
+ * Encodage & décodage arithmétique
+ */
+
+#ifndef ARITH_H
+
+#define ARITH_H
+
+#include "utypes.h"
+#include <stdio.h>
+
+class PPM_ReadBuf
+{
+ FILE *my_file_in;
+public:
+ PPM_ReadBuf(FILE* f) : my_file_in(f) {}
+ UINT readbuf(UCHAR *buf,UINT len)
+ {
+ UINT len1;
+ len1=fread(buf,1,len,my_file_in);
+ return len1;
+ }
+};
+
+class ArithClass
+{
+
+UCHAR *ainbuf;
+UCHAR *apinbuf,*aendinbuf;
+UINT ainbufsize;
+USHORT avalue,alow,ahigh;
+PPM_ReadBuf* areadbuf;
+UCHAR abitcnt;
+USHORT abitbuf;
+
+ public:
+void Arith_DecodeInit(PPM_ReadBuf* readbuf,UCHAR *buf,UINT bufsize);
+UINT Arith_DecodeVal(UINT size);
+void Arith_Decode(UINT min,UINT max,UINT size);
+void Arith_DecodeEnd(void);
+
+};
+#endif
|