/*
 * Copyright 2009 Vincent Sanders <vince@simtec.co.uk>
 *
 * This file is part of libnsfb, http://www.netsurf-browser.org/
 * Licenced under the MIT License,
 *                http://www.opensource.org/licenses/mit-license.php
 */

#include <stdbool.h>
#include <stdio.h>
#include <malloc.h>

#include "libnsfb.h"
#include "libnsfb_plot.h"
#include "libnsfb_event.h"
#include "nsfb.h"
#include "frontend.h"

/* documented in libnsfb.h */
nsfb_t*
nsfb_init(const enum nsfb_frontend_e frontend_type)
{
    nsfb_t *newfb;
    newfb = calloc(1, sizeof(nsfb_t));
    if (newfb == NULL)
        return NULL;

    /* obtain frontend routines */
    newfb->frontend_rtns = nsfb_frontend_get_rtns(frontend_type);
    if (newfb->frontend_rtns == NULL) {
        free(newfb);
        return NULL;
    }

    newfb->frontend_rtns->defaults(newfb);

    return newfb;
}

int nsfb_finalise(nsfb_t *nsfb)
{
    int ret;
    ret = nsfb->frontend_rtns->finalise(nsfb);
    free(nsfb);
    return ret;
}


int
nsfb_init_frontend(nsfb_t *nsfb)
{
    return nsfb->frontend_rtns->initialise(nsfb);
}

bool nsfb_event(nsfb_t *nsfb, nsfb_event_t *event, int timeout)
{
    return nsfb->frontend_rtns->input(nsfb, event, timeout);
}

int nsfb_claim(nsfb_t *nsfb, nsfb_bbox_t *box)
{
    return nsfb->frontend_rtns->claim(nsfb, box);
}

int nsfb_update(nsfb_t *nsfb, nsfb_bbox_t *box)
{
    return nsfb->frontend_rtns->update(nsfb, box);
}

int nsfb_set_geometry(nsfb_t *nsfb, int width, int height, int bpp) 
{
    if (width <= 0)
        width = nsfb->width;        

    if (height <= 0)
        height = nsfb->height;        

    if ((bpp != 32) && (bpp != 16) && (bpp != 8))
        bpp = nsfb->bpp; 

    return nsfb->frontend_rtns->geometry(nsfb, width, height, bpp);
}

int nsfb_get_geometry(nsfb_t *nsfb, int *width, int *height, int *bpp) 
{
    if (width != NULL)
        *width = nsfb->width;

    if (height != NULL)
        *height = nsfb->height;

    if (bpp != NULL)
        *bpp = nsfb->bpp;

    return 0;
}

int nsfb_get_framebuffer(nsfb_t *nsfb, uint8_t **ptr, int *linelen) 
{
    *ptr = nsfb->ptr;
    *linelen = nsfb->linelen;
    return 0;
}