Diffstat (limited to 'noncore/apps/opie-reader/ppm_expander.cpp') (more/less context) (ignore whitespace changes)
-rw-r--r-- | noncore/apps/opie-reader/ppm_expander.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/noncore/apps/opie-reader/ppm_expander.cpp b/noncore/apps/opie-reader/ppm_expander.cpp index 4f0a277..fe2745c 100644 --- a/noncore/apps/opie-reader/ppm_expander.cpp +++ b/noncore/apps/opie-reader/ppm_expander.cpp @@ -1,86 +1,86 @@ /* * 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) +int ppm_expander::OpenFile(const char* infile) { my_file_in=fopen(infile,"rb"); my_read_buf = new PPM_ReadBuf(my_file_in); 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); int err = locate(0,0); outbytes = 0; return err; } void ppm_expander::locate(unsigned int n) { locate(n/blocksize, n%blocksize); outbytes = n; } int 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); |