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#include "common.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <ctype.h>
#include <errno.h>
#include "image.h"
#include "file.h"
#include "dynamic_filters.h"
#include "script.h"
#include "loaderpath.h"
static pImlibExternalFilter filters = NULL;
static int dyn_initialised = 0;
#define MALLOCSHOW
#define FREESHOW
/*
#define FDEBUG
*/
pImlibExternalFilter
__imlib_LoadFilter(char *file)
{
ImlibExternalFilter *ptr;
struct imlib_filter_info *info;
/* printf( "Loading filter %s\n", file ); */
MALLOCSHOW;
ptr = malloc(sizeof(ImlibExternalFilter));
ptr->filename = strdup(file);
ptr->handle = dlopen(file, RTLD_NOW | RTLD_LOCAL);
if (!ptr->handle)
{
FREESHOW;
free(ptr->filename);
FREESHOW;
free(ptr);
return NULL;
}
ptr->init_filter = dlsym(ptr->handle, "init");
ptr->deinit_filter = dlsym(ptr->handle, "deinit");
ptr->exec_filter = dlsym(ptr->handle, "exec");
if (!ptr->init_filter || !ptr->deinit_filter || !ptr->exec_filter)
{
dlclose(ptr->handle);
FREESHOW;
free(ptr->filename);
FREESHOW;
free(ptr);
return NULL;
}
info = malloc(sizeof(struct imlib_filter_info));
ptr->init_filter(info);
ptr->num_filters = info->num_filters;
ptr->filters = info->filters;
ptr->name = info->name;
ptr->author = info->author;
ptr->description = info->description;
free(info);
#ifdef FDEBUG
printf("Filter has %d filters in it.\n", ptr->num_filters);
for (i = 0; i < ptr->num_filters; i++)
printf(" -> \"%s\"\n", ptr->filters[i]);
#endif
ptr->next = NULL;
return ptr;
}
void
__imlib_dynamic_filters_init()
{
char **list;
int num_filters, i = 0;
ImlibExternalFilter *ptr, *tptr;
if (!dyn_initialised)
{
MALLOCSHOW;
filters = malloc(sizeof(ImlibExternalFilter));
filters->filename = (char *)"";
filters->next = NULL;
ptr = filters;
#ifdef FDEBUG
printf("DEBUG: Dynamic filters Initisialising\n");
#endif
dyn_initialised = 1;
#ifdef FDEBUG
printf("DEBUG: Loading Filters\n");
#endif
list = __imlib_ListFilters(&num_filters);
for (i = num_filters - 1; i >= 0; i--)
{
tptr = NULL;
if ((tptr = __imlib_LoadFilter(list[i])))
{
ptr->next = tptr;
ptr = ptr->next;
}
if (list[i])
{
FREESHOW;
free(list[i]);
}
}
FREESHOW;
if (list)
free(list);
}
}
void
__imlib_dynamic_filters_deinit()
{
}
pImlibExternalFilter
__imlib_get_dynamic_filter(char *name)
{
pImlibExternalFilter f_ptr;
int i = 0;
/* scan the filters */
for (f_ptr = filters->next; f_ptr; f_ptr = f_ptr->next)
{
/* scan the methods provided */
for (i = 0; i < f_ptr->num_filters; i++)
{
if (strcmp(f_ptr->filters[i], name) == 0)
{
#ifdef FDEBUG
printf("DEBUG: Found filter \"%s\"\n", name);
#endif
return f_ptr;
}
}
}
return NULL;
}
/* loader dir */
char **
__imlib_ListFilters(int *num_ret)
{
char **list = NULL, **l, *s;
int num, i, pi = 0;
*num_ret = 0;
/* same for system loader path */
s = (char *)malloc(sizeof(SYS_LOADERS_PATH) + 8 + 1);
sprintf(s, SYS_LOADERS_PATH "/filters");
#ifndef __EMX__
l = __imlib_FileDir(s, &num);
#else
l = __imlib_FileDir(__XOS2RedirRoot(s), &num);
#endif
if (num > 0)
{
*num_ret += num;
list = realloc(list, sizeof(char *) * *num_ret);
for (i = 0; i < num; i++)
{
s = (char *)realloc(s,
sizeof(SYS_LOADERS_PATH) + 9 + strlen(l[i]) +
1);
sprintf(s, SYS_LOADERS_PATH "/filters/%s", l[i]);
#ifndef __EMX__
list[pi + i] = strdup(s);
#else
list[pi + i] = strdup(__XOS2RedirRoot(s));
#endif
}
__imlib_FileFreeDirList(l, num);
}
free(s);
/* List currently contains *everything in there* we need to weed out
* the .so, .la, .a versions of the same loader or whatever else.
* dlopen can take an extension-less name and do the Right Thing
* with it, so that's what we'll give it. */
list = __imlib_TrimLoaderList(list, num_ret);
return list;
}
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