/* $Id: fb_w3mimg.c,v 1.2 2002/07/22 16:17:32 ukai Exp $ */
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

#include "w3mimg/fb/fb.h"
#include "w3mimg/fb/fb_img.h"
#include "w3mimg/w3mimg.h"

static int
w3mfb_init(w3mimg_op *self)
{
    if (self == NULL)
	return 0;
    return 1;
}

static int
w3mfb_finish(w3mimg_op *self)
{
    if (self == NULL)
	return 0;
    return 1;
}

static int
w3mfb_active(w3mimg_op *self)
{
    if (self == NULL)
	return 0;
    return 1;
}

static void
w3mfb_set_background(w3mimg_op *self, char *background)
{
    if (self == NULL)
	return;
    if (background) {
	int r, g, b;
	if (sscanf(background, "#%02x%02x%02x", &r, &g, &b) == 3)
	    fb_image_set_bg(r, g, b);
    }
}

static void
w3mfb_sync(w3mimg_op *self)
{
    return;
}

static void
w3mfb_close(w3mimg_op *self)
{
    fb_close();
}

static int
w3mfb_load_image(w3mimg_op *self, W3MImage *img, char *fname, int w, int h)
{
    FB_IMAGE *im;

    if (self == NULL)
	return 0;
    im = fb_image_load(fname, w, h);
    if (!im)
	return 0;
    img->pixmap = im;
    img->width = im->width;
    img->height = im->height;
    return 1;
}

static int
w3mfb_show_image(w3mimg_op *self, W3MImage *img, int sx, int sy, 
		 int sw, int sh,
		 int x, int y)
{
    if (self == NULL)
	return 0;

    fb_image_draw((FB_IMAGE *)img->pixmap,
		  x + self->offset_x, y + self->offset_y,
		  sx, sy,
		  (sw ? sw : img->width),
		  (sh ? sh : img->height));
    return 1;
}

static void
w3mfb_free_image(w3mimg_op *self, W3MImage *img)
{
    if (self == NULL)
	return;
    if (img && img->pixmap) {
	fb_image_free((FB_IMAGE *)img->pixmap);
	img->pixmap = NULL;
	img->width = 0;
	img->height = 0;
    }
}

static int
w3mfb_get_image_size(w3mimg_op *self, W3MImage *img, 
		     char *fname, int *w, int *h)
{
    int i;

    if (self == NULL)
	return 0;
    i = get_image_size(fname, w, h);
    if (i)
	return 0;
    return 1;
}

w3mimg_op *
w3mimg_fbopen()
{
    w3mimg_op *wop = NULL;
    wop = (w3mimg_op *)malloc(sizeof(w3mimg_op));
    if (wop == NULL)
	return NULL;
    memset(wop, 0, sizeof(w3mimg_op));

    if (fb_open())
	goto error;

    wop->width = fb_width();
    wop->height = fb_height();
    
    wop->init = w3mfb_init;
    wop->finish = w3mfb_finish;
    wop->active = w3mfb_active;
    wop->set_background = w3mfb_set_background;
    wop->sync = w3mfb_sync;
    wop->close = w3mfb_close;

    wop->load_image = w3mfb_load_image;
    wop->show_image = w3mfb_show_image;
    wop->free_image = w3mfb_free_image;
    wop->get_image_size = w3mfb_get_image_size;

    return wop;
error:
    free(wop);
    return NULL;
}