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/*
Copyright (C) 2000 Paul Wilkins
This program 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
of the License, or (at your option) any later version.
This program 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* make_db.c by Paul Wilkins 1/2/2000 */
#include <stdio.h>
#include <unistd.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/extensions/shape.h>
#include <Imlib.h>
struct PIX {
int cnt;
double r;
double g;
double b;
};
#define MAX_SIZE 5
#define MAX_PATH_LEN 512
int
main(int argc, char **argv)
{
int write_db = 1;
int i, j, n;
int size;
Display *disp;
ImlibData *id;
ImlibImage *im;
int qh, qw;
int width, height;
int ww, hh;
unsigned char *p1;
struct PIX ***quad;
char my_cwd[MAX_PATH_LEN+1];
FILE *dbfp;
/* Be nice and tell the user if they don't, to provide a file as an arg */
if (argc <= 1) {
fprintf(stderr, "make_db is a program that scanns pictures and creates a file\n");
fprintf(stderr, "called pic_db.dat. The file pic_db.dat is used by Pixelize\n");
fprintf(stderr, "when \"rendering\" images.\n");
fprintf(stderr, "\n");
fprintf(stderr, "Usage:\n %s image_files\n", argv[0]);
exit(1);
}
if(NULL == (quad=malloc((MAX_SIZE+1)*sizeof(struct PIX *)))){
perror("malloc");
exit(1);
}
for(i=1; i<=MAX_SIZE; i++){
if(NULL == (quad[i]=malloc((MAX_SIZE+1)*sizeof(struct PIX *)))){
perror("malloc");
exit(1);
}
for(j=0; j<=MAX_SIZE; j++){
if(NULL == (quad[i][j]=malloc((MAX_SIZE+1)*sizeof(struct PIX)))){
perror("malloc");
exit(1);
}
}
}
/* Connect to the default Xserver */
disp = XOpenDisplay(NULL);
/* Immediately afterwards Intitialise Imlib */
id = Imlib_init(disp);
if(write_db){
if(NULL == (dbfp=fopen("pic_db.dat", "a+"))){
printf("Error opening pic_db.dat for write\n");
exit(1);
}
fprintf(dbfp, "%d\n", MAX_SIZE);
}
/* get the cwd. we may use it later */
if(NULL == (getcwd(my_cwd, MAX_PATH_LEN))){
fprintf(stderr, "Warning: Can't determine Current working directory.\n");
fprintf(stderr, " This may generate an invalid pic_db.dat file.\n");
my_cwd[0] = '\0';
}
/* for each file */
for(n=1; n<argc; n++){
/* Load the image specified as the first argument */
if(NULL == (im = Imlib_load_image(id, argv[n]))){
fprintf(stderr, "Error: Can't load image %s\n", argv[n]);
continue;
}
/* Suck the image's original width and height out of the Image structure */
width = im->rgb_width;
height = im->rgb_height;
printf("file %d: %s width: %d height: %d\n", n, argv[n], width, height);
if(write_db){
if(argv[n][0] != '/'){
fprintf(dbfp, "%s/%s\n", my_cwd, argv[n]);
} else {
fprintf(dbfp, "%s\n", argv[n]);
}
}
for(size=1; size<=MAX_SIZE; size++){
for(hh=0; hh<size; hh++){
for(ww=0; ww<size; ww++){
quad[size][ww][hh].cnt = 0;
quad[size][ww][hh].r = 0.0;
quad[size][ww][hh].g = 0.0;
quad[size][ww][hh].b = 0.0;
}
}
}
/* generate the data for each size */
for(size=3; size<=MAX_SIZE; size++){
p1 = im->rgb_data;
for(hh=0; hh<height; hh++){
qh = (int)((double)hh / (double)height * (double)size);
if(qh < 0) qh = 0;
if(qh >= size) qh = size - 1;
for(ww=0; ww<width; ww++){
qw = (int)((double)ww / (double)width * (double)size);
if(qw < 0) qw = 0;
if(qw >= size) qw = size - 1;
quad[size][qw][qh].cnt++;
quad[size][qw][qh].r += (double)(*p1++);
quad[size][qw][qh].g += (double)(*p1++);
quad[size][qw][qh].b += (double)(*p1++);
}
}
}
/* special case for size = 2 */
for(hh=0; hh<2; hh++){
for(ww=0; ww<2; ww++){
for(i=0; i<2; i++){
for(j=0; j<2; j++){
quad[2][ww][hh].cnt += quad[4][ww*2+i][hh*2+j].cnt;
quad[2][ww][hh].r += quad[4][ww*2+i][hh*2+j].r;
quad[2][ww][hh].g += quad[4][ww*2+i][hh*2+j].g;
quad[2][ww][hh].b += quad[4][ww*2+i][hh*2+j].b;
}
}
}
}
/* special case for size = 1 */
for(i=0; i<2; i++){
for(j=0; j<2; j++){
quad[1][0][0].cnt += quad[2][i][j].cnt;
quad[1][0][0].r += quad[2][i][j].r;
quad[1][0][0].g += quad[2][i][j].g;
quad[1][0][0].b += quad[2][i][j].b;
}
}
for(size=1; size<=MAX_SIZE; size++){
if(write_db){
for(hh=0; hh<size; hh++){
for(ww=0; ww<size; ww++){
fprintf(dbfp, "%03d %03d %03d\n",
(int)(quad[size][ww][hh].r / quad[size][ww][hh].cnt),
(int)(quad[size][ww][hh].g / quad[size][ww][hh].cnt),
(int)(quad[size][ww][hh].b / quad[size][ww][hh].cnt));
}
}
}
}
Imlib_kill_image(id, im);
}
if(write_db) fclose(dbfp);
return 0;
}
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