source: titan/titan/pic.h @ 15501

#ifndef PIC_H
#define PIC_H

void debugpic()
{
        struct pic* node = pic;

        while(node != NULL)
        {
                printf("%s\n", node->name);
                node = node->next;
        }
}

struct pic* addpic(char *name, unsigned char* picbuf, int memfd, unsigned long width, unsigned long height, unsigned long rowbytes, int channels, int timeout, int del, struct pic* last)
{
        debug(1000, "in");
        struct pic *newnode = NULL, *prev = NULL, *node = pic;

        newnode = (struct pic*)malloc(sizeof(struct pic));      
        if(newnode == NULL)
        {
                err("no memory");
                return NULL;
        }

        memset(newnode, 0, sizeof(struct pic));

        newnode->name = ostrcat(name, "", 0, 0);
        newnode->picbuf = picbuf;
        newnode->memfd = memfd;
        newnode->width = width;
        newnode->height = height;
        newnode->rowbytes = rowbytes;
        newnode->channels = channels;
  newnode->timeout = timeout;
        newnode->del = del;

        if(last == NULL)
        {
                while(node != NULL && strcoll(newnode->name, node->name) > 0)
                {
                        prev = node;
                        node = node->next;
                }
        }
        else
        {
                prev = last;
                node = last->next;
        }

        if(prev == NULL)
                pic = newnode;
        else
                prev->next = newnode;

        newnode->next = node;

        debug(1000, "out");
        return newnode;
}

void freepiccontent(struct pic* node)
{
        free(node->name);
        node->name = NULL;

        if(node->memfd >= 0)
        {
                freebpamem(node->memfd, node->picbuf, node->width * node->height * node->channels);
                node->memfd = -1;
        }
        else
                free(node->picbuf);

        node->picbuf = NULL;
}

void delpic(char* name)
{
        debug(1000, "in");
        struct pic *node = pic, *prev = pic;
        char* tmpstr = NULL;

        tmpstr = changepicpath(name);

        while(node != NULL)
        {
                if(ostrcmp(node->name, tmpstr) == 0)
                {
                        if(node == pic)
                                pic = node->next;
                        else
                                prev->next = node->next;

                        freepiccontent(node);

                        free(node);
                        node = NULL;
                        break;
                }

                prev = node;
                node = node->next;
        }
        free(tmpstr);
        debug(1000, "out");
}

void delmarkedpic(int del)
{
        debug(1000, "in");
        struct pic *node = pic, *prev = pic;

        while(node != NULL)
        {
                if(node->del == del)
                {
                        if(node == pic)
                                pic = node->next;
                        else
                                prev->next = node->next;

                        freepiccontent(node);

                        free(node);
                        node = NULL;
                        break;
                }

                prev = node;
                node = node->next;
        }
        debug(1000, "out");
}

void checkpictimeout()
{
  struct pic* node = pic;
  time_t akttime = time(NULL);

  while(node != NULL)
  {
    if(node->timeout != 0 && node->lastaccess + node->timeout < akttime)
      delpic(node->name);
    node = node->next;
  }
}

struct pic* getpic(char* name)
{
        debug(1000, "in");
        struct pic *node = pic;
        char* tmpstr = NULL;

        tmpstr = changepicpath(name);

        while(node != NULL)
        {
                if(ostrcmp(node->name, tmpstr) == 0)
                {
                        debug(1000, "out");
                        free(tmpstr);
      node->lastaccess = time(NULL);
                        return node;
                }

                node = node->next;
        }
        debug(100, "pic not found (name=%s)", name);
        free(tmpstr);
        return NULL;
}

void freepic()
{
        debug(1000, "in");
        struct pic *node = pic, *prev = pic;

        while(node != NULL)
        {
                prev = node;
                node = node->next;
                if(prev != NULL)
                        delpic(prev->name);
        }
        debug(1000, "out");
}

#endif