view src/sprite.c @ 1401:2fc1f54a1a3b

Mainly fix the clone_from_subtree to update the children of the parent node. We need to clearify all related codes in the future to make the logic more clear.
author wycc
date Sun, 03 Apr 2011 18:12:42 +0800
parents 8679b03f72e8
children
line wrap: on
line source

// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
// vim: sw=4:ts=8:sts=4
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#include <sys/stat.h>
#include "mb_types.h"
#include "mb_redraw_man.h"
#include "mb_sprite.h"

#define ASSERT(x)
#define OK 0
#define ERR 1

static char *sprite_search_path = NULL;

static char *sprite_search_so(const char *name) {
    struct stat st;
    int fsz;
    char *fullname;
    int r;

    if(sprite_search_path == NULL)
	sprite_search_path = strdup("/usr/share/madbutterffly");

    fsz = strlen(sprite_search_path) + strlen(name) + 5;
    fullname = (char *)malloc(fsz);

    snprintf(fullname, fsz, "%s/%s.so", sprite_search_path, name);
    r = stat(fullname, &st);
    if(r != 0) {
	free(fullname);
	return NULL;
    }

    return fullname;
}

void sprite_set_search_path(const char *path) {
    int sz;

    if (sprite_search_path)
	free(sprite_search_path);

    sprite_search_path = strdup(path);

    sz = strlen(sprite_search_path);
    if(sprite_search_path[sz - 1] == '/')
	sprite_search_path[sz - 1] = 0;
}

mb_sprite_t *
sprite_load(const char *name, redraw_man_t *rdman, coord_t *root) {
    char cnstr_name[256];
    char *so_path;
    const char *bname;
    void *handle;
    mb_sprite_t *(*cnstr)(redraw_man_t *, coord_t *);
    mb_sprite_t *obj;
    int r;

    so_path = sprite_search_so(name);
    if(so_path == NULL)
	return NULL;

    handle = dlopen(so_path, RTLD_LAZY);
    free(so_path);
    if (handle == NULL)
	return NULL;

    bname = strrchr(name, '/');
    if(bname != NULL && strlen(bname) > 250)
	return NULL;

    if(bname == NULL)
	bname = name;
    else
	bname++;

    snprintf(cnstr_name, sizeof(cnstr_name), "%s_new", bname);
    cnstr = dlsym(handle, cnstr_name);
    if (cnstr == NULL)
	return NULL;

    obj = cnstr(rdman, root);

    return obj;
}