int ppmb_read ( char *filein_name, int *xsize, int *ysize, int *maxrgb, int **array )
{
FILE *filein;
int numbytes;
int result;
filein = fopen ( filein_name, "rb" );
if ( filein == NULL ) {
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " Cannot open the input file %s.\n", filein_name );
return 1;
}
/*
Read the header.
*/
result = ppmb_read_header ( filein, xsize, ysize, maxrgb );
if ( result != 0 ) {
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " PPMB_READ_HEADER failed.\n" );
return 1;
}
/*
Allocate storage for the data.
*/
numbytes = 3 * ( *xsize ) * ( *ysize ) * sizeof ( int );
*array = ( int * ) malloc ( numbytes );
if ( *array == NULL ) {
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " Unable to allocate memory for data.\n" );
printf ( " Seeking %d bytes.\n", numbytes );
return 1;
}
/*
Read the data.
*/
result = ppmb_read_data (filein, *xsize, *ysize, *array);
if ( result != 0 ) {
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " PPMB_READ_DATA failed.\n" );
return 1;
}
/*
Close the file.
*/
fclose ( filein );
return 0;
}
bool ppmb_read ( char *file_name, int *xsize, int *ysize, int *maxrgb,
unsigned char **rarray, unsigned char **garray, unsigned char **barray )
/******************************************************************************/
/*
Purpose:
PPMB_READ reads the header and data from a binary portable pixel map file.
Licensing:
This code is distributed under the GNU LGPL license.
Modified:
16 June 2012
Author:
John Burkardt
Parameters:
Input, char *FILE_NAME, the name of the file containing the binary
portable pixel map data.
Output, int *XSIZE, *YSIZE, the number of rows and columns of data.
Output, int *MAXRGB, the maximum RGB value.
Output, unsigned char **RARRAY, **GARRAY, **BARRAY, the arrays of XSIZE by YSIZE
data values.
Output, bool PPMB_READ, equals
true, if the file could not be read,
false, if the file was read.
*/
{
FILE *file_pointer;
int numbytes;
bool result;
file_pointer = fopen ( file_name, "rb" );
if ( file_pointer == NULL )
{
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " Cannot open the input file %s.\n", file_name );
return true;
}
/*
Read the header.
*/
result = ppmb_read_header ( file_pointer, xsize, ysize, maxrgb );
if ( result )
{
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " PPMB_READ_HEADER failed.\n" );
return true;
}
/*
Allocate storage for the data.
*/
numbytes = ( *xsize ) * ( *ysize ) * sizeof ( unsigned char );
*rarray = ( unsigned char * ) malloc ( numbytes );
if ( *rarray == NULL )
{
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " Unable to allocate memory for data.\n" );
printf ( " Seeking %d bytes.\n", numbytes );
return true;
}
*garray = ( unsigned char * ) malloc ( numbytes );
if ( *garray == NULL )
{
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " Unable to allocate memory for data.\n" );
printf ( " Seeking %d bytes.\n", numbytes );
return true;
}
*barray = ( unsigned char * ) malloc ( numbytes );
if ( *barray == NULL )
{
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " Unable to allocate memory for data.\n" );
printf ( " Seeking %d bytes.\n", numbytes );
return true;
}
/*
Read the data.
*/
result = ppmb_read_data ( file_pointer, *xsize, *ysize, *rarray,
*garray, *barray );
if ( result )
{
printf ( "\n" );
printf ( "PPMB_READ: Fatal error!\n" );
printf ( " PPMB_READ_DATA failed.\n" );
return true;
}
/*
Close the file.
*/
fclose ( file_pointer );
return false;
}
