/* $Id: drv_Image.c,v 1.18 2006/06/21 05:12:43 reinelt Exp $
 *
 * new style Image (PPM/PNG) Driver for LCD4Linux 
 *
 * Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at>
 * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * LCD4Linux is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: drv_Image.c,v $
 * Revision 1.18  2006/06/21 05:12:43  reinelt
 * added checks for libgd version 2 (thanks to Sam)
 *
 * Revision 1.17  2006/02/08 04:55:04  reinelt
 * moved widget registration to drv_generic_graphic
 *
 * Revision 1.16  2006/02/06 06:29:30  reinelt
 * Image driver uses RGBA
 *
 * Revision 1.15  2006/01/30 06:25:52  reinelt
 * added CVS Revision
 *
 * Revision 1.14  2006/01/30 05:47:38  reinelt
 * graphic subsystem changed to full-color RGBA
 *
 * Revision 1.13  2005/11/04 04:44:52  reinelt
 * LPH7508 driver (not yet finished)
 *
 * Revision 1.12  2005/05/08 04:32:44  reinelt
 * CodingStyle added and applied
 *
 * Revision 1.11  2005/01/18 06:30:23  reinelt
 * added (C) to all copyright statements
 *
 * Revision 1.10  2004/11/29 04:42:07  reinelt
 * removed the 99999 msec limit on widget update time (thanks to Petri Damsten)
 *
 * Revision 1.9  2004/06/26 12:04:59  reinelt
 *
 * uh-oh... the last CVS log message messed up things a lot...
 *
 * Revision 1.8  2004/06/26 09:27:20  reinelt
 *
 * added '-W' to CFLAGS
 * changed all C++ comments to C ones
 * cleaned up a lot of signed/unsigned mistakes
 *
 * Revision 1.7  2004/06/20 10:09:54  reinelt
 *
 * 'const'ified the whole source
 *
 * Revision 1.6  2004/06/19 08:20:19  reinelt
 *
 * compiler warning in image driver fixed
 * bar bug in USBLCD driver fixed
 *
 * Revision 1.5  2004/06/06 06:51:59  reinelt
 *
 * do not display end splash screen if quiet=1
 *
 * Revision 1.4  2004/06/02 09:41:19  reinelt
 *
 * prepared support for startup splash screen
 *
 * Revision 1.3  2004/05/31 06:24:42  reinelt
 *
 * fixed symlink security issue with the image driver
 *
 * Revision 1.2  2004/05/29 23:30:20  reinelt
 *
 * fixed a compiler issue with drv_Image.c (thanks to Frank Stratmann)
 *
 * Revision 1.1  2004/05/25 14:27:21  reinelt
 *
 * added drv_Image.c (this time really!)
 *
 */

/* 
 *
 * exported fuctions:
 *
 * struct DRIVER drv_Image
 *
 */


#include "config.h"

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.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */</style><div class="highlight"><pre><span></span># automatically generated from http://www.digitv.fi/sivu.asp?path=1;8224;9519
# T freq bw fec_hi fec_lo mod transmission-mode guard-interval hierarchy
T 650000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
T 682000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
T 722000000 8MHz 2/3 NONE QAM64 8k 1/8 NONE
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<div class='footer'>generated by <a href='https://git.zx2c4.com/cgit/about/'>cgit v1.2.3</a> (<a href='https://git-scm.com/'>git 2.39.1</a>) at 2026-10-18 11:03:54 +0000</div>
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t row, const int col, const int height, const int width)
{
    int r, c;

    for (r = row; r < row + height && r < DROWS; r++) {
	for (c = col; c < col + width && c < DCOLS; c++) {
	    RGBA p1 = drv_IMG_FB[r * DCOLS + c];
	    RGBA p2 = drv_generic_graphic_rgb(r, c);
	    if (p1.R != p2.R || p1.G != p2.G || p1.B != p2.B) {
		drv_IMG_FB[r * DCOLS + c] = p2;
		dirty = 1;
	    }
	}
    }
}


static int drv_IMG_start(const char *section)
{
    int i;
    char *s;

    if (output == NULL || *output == '\0') {
	error("%s: no output file specified (use -o switch)", Name);
	return -1;
    }

    /* read file format from config */
    s = cfg_get(section, "Format", NULL);
    if (s == NULL || *s == '\0') {
	error("%s: no '%s.Format' entry from %s", Name, section, cfg_source());
	free(s);
	return -1;
    }

    if (strcmp(s, "PPM") == 0) {
	Format = PPM;
    } else if (strcmp(s, "PNG") == 0) {
	Format = PNG;
    } else {
	error("%s: bad %s.Format '%s' from %s", Name, section, s, cfg_source());
	free(s);
	return -1;
    }
    free(s);

    /* read display size from config */
    if (sscanf(s = cfg_get(section, "Size", "120x32"), "%dx%d", &DCOLS, &DROWS) != 2 || DCOLS < 1 || DROWS < 1) {
	error("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source());
	free(s);
	return -1;
    }
    free(s);

    if (sscanf(s = cfg_get(section, "font", "5x8"), "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) {
	error("%s: bad %s.Font '%s' from %s", Name, section, s, cfg_source());
	free(s);
	return -1;
    }
    free(s);

    if (sscanf(s = cfg_get(section, "pixel", "4+1"), "%d+%d", &pixel, &pgap) != 2 || pixel < 1 || pgap < 0) {
	error("%s: bad %s.Pixel '%s' from %s", Name, section, s, cfg_source());
	free(s);
	return -1;
    }
    free(s);

    if (sscanf(s = cfg_get(section, "gap", "-1x-1"), "%dx%d", &cgap, &rgap) != 2 || cgap < -1 || rgap < -1) {
	error("%s: bad %s.Gap '%s' from %s", Name, section, s, cfg_source());
	free(s);
	return -1;
    }
    free(s);

    if (rgap < 0)
	rgap = pixel + pgap;
    if (cgap < 0)
	cgap = pixel + pgap;

    if (cfg_number(section, "border", 0, 0, -1, &border) < 0)
	return -1;

    s = cfg_get(section, "basecolor", "000000ff");
    if (color2RGBA(s, &BC) < 0) {
	error("%s: ignoring illegal color '%s'", Name, s);
    }
    free(s);

    drv_IMG_FB = malloc(DCOLS * DROWS * sizeof(*drv_IMG_FB));
    if (drv_IMG_FB == NULL) {
	error("%s: framebuffer could not be allocated: malloc() failed", Name);
	return -1;
    }

    for (i = 0; i < DCOLS * DROWS; i++) {
	drv_IMG_FB[i] = BC;
    }

    dimx = DCOLS * pixel + (DCOLS - 1) * pgap + (DCOLS / XRES - 1) * cgap;
    dimy = DROWS * pixel + (DROWS - 1) * pgap + (DROWS / YRES - 1) * rgap;


    /* initially flush the image to a file */
    drv_IMG_flush();

    /* regularly flush the image to a file */
    /* Fixme: make 100msec configurable */
    timer_add(drv_IMG_timer, NULL, 100, 0);


    return 0;
}



/****************************************/
/***            plugins               ***/
/****************************************/

/* none at the moment... */


/****************************************/
/***        exported functions        ***/
/****************************************/


/* list models */
int drv_IMG_list(void)
{
    printf("PPM PNG");
    return 0;
}


/* initialize driver & display */
int drv_IMG_init(const char *section, const __attribute__ ((unused))
		 int quiet)
{
    int ret;

    info("%s: %s", Name, "$Revision: 1.18 $");

    /* real worker functions */
    drv_generic_graphic_real_blit = drv_IMG_blit;

    /* start display */
    if ((ret = drv_IMG_start(section)) != 0)
	return ret;

    /* initialize generic graphic driver */
    if ((ret = drv_generic_graphic_init(section, Name)) != 0)
	return ret;

    /* register plugins */
    /* none at the moment... */


    return 0;
}


/* close driver & display */
int drv_IMG_quit(const __attribute__ ((unused))
		 int quiet)
{

    info("%s: shutting down.", Name);
    drv_generic_graphic_quit();

    if (drv_IMG_FB) {
	free(drv_IMG_FB);
	drv_IMG_FB = NULL;
    }

    return (0);
}


DRIVER drv_Image = {
  name:Name,
  list:drv_IMG_list,
  init:drv_IMG_init,
  quit:drv_IMG_quit,
};