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//
// DataImage routines.
//
// Copyright 2006 by Johannes Hofmann
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library 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
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
//
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include "DataImage.H"
DataImage::DataImage() {
}
DataImage::~DataImage() {
}
int
DataImage::set_pixel(int x, int y, char r, char g, char b) {
}
static int
DataImage::get_pixel(Fl_RGB_Image *img, int x, int y,
char *r, char *g, char *b) {
if ( img->d() == 0 ) {
return 1;
}
if (x < 0 || x >=img->w() || y < 0 || y >= img->h()) {
return 1;
}
long index = (y * img->w() * img->d()) + (x * img->d()); // X/Y -> buf index
switch ( img->count() ) {
case 1: { // bitmap
const char *buf = img->data()[0];
switch ( img->d() ) {
case 1: { // 8bit
*r = *g = *b = *(buf+index);
break;
}
case 3: // 24bit
*r = *(buf+index+0);
*g = *(buf+index+1);
*b = *(buf+index+2);
break;
default: // ??
printf("Not supported: chans=%d\n", img->d());
return 1;
}
break;
}
default: // ?? pixmap, bit vals
printf("Not supported: count=%d\n", img->count());
exit(1);
}
return 0;
}
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