1 files changed, 10 insertions, 1 deletions

diff --git a/noncore/apps/opie-reader/ppm_expander.cpp b/noncore/apps/opie-reader/ppm_expander.cpp
index 2a4318b..61ef90e 100644
--- a/noncore/apps/opie-reader/ppm_expander.cpp
+++ b/noncore/apps/opie-reader/ppm_expander.cpp
@@ -1,115 +1,124 @@
 /*
  * Interface pour le programme de compression
  * (c) 1995 Fabrice Bellard
  */
 
 #include <stdlib.h>
 //#include <unistd.h>
 #include <stdio.h>
 #include <string.h>
 #include <time.h>
 
 /***************************************************************************
  * Interface avec les routines de compression
  */
 
 #define METHOD_NB      2   /* nombre total de méthodes de compression */
 
 #define METHOD_STORE   0
 #define METHOD_PPM     1
 
 
 #define DEFAULT_SUFFIX  ".st"    /* extension par défault */
 /* signature en début de fichier */
 #define STAT_MAGIC_SIZE 4
 char stat_magic[STAT_MAGIC_SIZE]={'P','P','M','S'};
 
 #include "ppm_expander.h"
 
 ppm_expander::~ppm_expander() {
   if (needppmend) ppm.PPM_End();
   ppm.arith.Arith_DecodeEnd();
   if (buf_in!=NULL) delete [] buf_in;
   if (buf_out!=NULL) delete [] buf_out;
   if (my_read_buf != NULL) delete my_read_buf;
   if (my_file_in != NULL) fclose(my_file_in);
 }
 
 int ppm_expander::OpenFile(const char* infile)
 {
   my_file_in=fopen(infile,"rb");
-  my_read_buf = new PPM_ReadBuf(my_file_in);
+  my_read_buf = new PPM_ReadBuf(my_file_in, this);
   return home();
 }
 
 void ppm_expander::sizes(unsigned long& file, unsigned long& text)
 {
   struct stat _stat;
   fstat(fileno(my_file_in),&_stat);
   file = _stat.st_size;
   text = numblocks*blocksize;
 }
 
 int ppm_expander::home()
 {
   fseek(my_file_in,0, SEEK_SET);
   unsigned char header[STAT_MAGIC_SIZE];
   size_t len=fread(header,1,STAT_MAGIC_SIZE,my_file_in);
   if (strncmp((char*)header,stat_magic,STAT_MAGIC_SIZE)!=0)  {
     return 1;
   }
   if (len!=(STAT_MAGIC_SIZE))  {
     return 1;
   }
   if (fread(&maxnode,sizeof(maxnode),1,my_file_in) != 1) return 1;
   if (fread(&blocksize,sizeof(blocksize),1,my_file_in) != 1) return 1;
   if (fread(&numblocks,sizeof(numblocks),1,my_file_in) != 1) return 1;
   //fprintf(stderr,"<%u,%u,%u>\n",maxnode,blocksize,numblocks);
   locate(0,0);
   outbytes = 0;
   return 0;
 }
 
 void ppm_expander::locate(unsigned int n) {
   locate(n/blocksize, n%blocksize);
   outbytes = n;
 }
 
 void ppm_expander::locate(unsigned short block, unsigned int n)
 {
   if (needppmend)
     {
       ppm.PPM_End();
       needppmend = false;
     }
   size_t fpos;
   fseek(my_file_in,STAT_MAGIC_SIZE+sizeof(maxnode)+sizeof(blocksize)+sizeof(numblocks)+block*sizeof(fpos),SEEK_SET);
   fread(&fpos,sizeof(fpos),1,my_file_in);
   fseek(my_file_in,fpos,SEEK_SET);
 
   ppm.arith.Arith_DecodeInit(my_read_buf,buf_in,bufsize);
   int err=ppm.PPM_Init(maxnode);
   needppmend = true;
   curblock = block;
   for (int i = 0; i < n; i++) getch();
 }
 
 int ppm_expander::getch() {
   if (curblock >= numblocks) return EOF;
   int c=ppm.PPM_Decode();
   if (c == SYM_EOF)
     {
       if (++curblock >= numblocks) return EOF;
       locate(curblock,0);
       c = ppm.PPM_Decode();
     }
   outbytes++;
   return (c==SYM_EOF) ? EOF : c;
 }
 
+UINT PPM_ReadBuf::readbuf(UCHAR *buf,UINT len)
+  {
+    UINT len1;
+    parent->unsuspend();
+    len1=fread(buf,1,len,my_file_in);
+    return len1;
+  }
+
+
 #ifndef __STATIC
 extern "C"
 {
   CExpander* newcodec() { return new ppm_expander; }
 }
 #endif