You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
1.5 KiB
86 lines
1.5 KiB
/*
|
|
data source for libisoburn.
|
|
|
|
Copyright 2007 Vreixo Formoso Lopes <metalpain2002@yahoo.es>
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "isoburn.h"
|
|
#include "../libisofs/libisofs.h"
|
|
#include "../libburn/libburn.h"
|
|
|
|
struct disc_data_src {
|
|
struct burn_drive *d;
|
|
int nblocks;
|
|
};
|
|
|
|
static int
|
|
ds_read_block(struct data_source *src, int lba, unsigned char *buffer)
|
|
{
|
|
int ret;
|
|
struct disc_data_src *data;
|
|
off_t count;
|
|
|
|
assert(src && buffer);
|
|
|
|
data = (struct disc_data_src*)src->data;
|
|
|
|
/* if (lba >= data->nblocks)
|
|
* return BLOCK_OUT_OF_FILE;
|
|
*/
|
|
|
|
ret = burn_read_data(data->d, (off_t) lba * (off_t) 2048, buffer, 2048, &count, 0);
|
|
if (ret <= 0 )
|
|
return -1; //error
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
ds_get_size(struct data_source *src)
|
|
{
|
|
struct disc_data_src *data;
|
|
|
|
assert(src);
|
|
|
|
data = (struct disc_data_src*)src->data;
|
|
return data->nblocks;
|
|
}
|
|
|
|
static void
|
|
ds_free_data(struct data_source *src)
|
|
{
|
|
free(src->data);
|
|
}
|
|
|
|
static struct data_source *
|
|
isoburn_data_source_new(struct burn_drive *d)
|
|
{
|
|
struct disc_data_src *data;
|
|
struct data_source *ret;
|
|
|
|
assert(d);
|
|
|
|
data = malloc(sizeof(struct disc_data_src));
|
|
if (!data)
|
|
return NULL;
|
|
data->d = d;
|
|
|
|
//TODO should be filled with the size of disc (or track?)
|
|
data->nblocks = 0;
|
|
|
|
ret = malloc(sizeof(struct data_source));
|
|
if (!ret) {
|
|
free(data);
|
|
return NULL;
|
|
}
|
|
ret->refcount = 1;
|
|
ret->read_block = ds_read_block;
|
|
ret->get_size = ds_get_size;
|
|
ret->free_data = ds_free_data;
|
|
ret->data = data;
|
|
return ret;
|
|
}
|
|
|
|
|