124 lines
2.4 KiB
C
124 lines
2.4 KiB
C
/*
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testing some random funcs.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <math.h>
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#include <string.h>
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#include "floatimg.h"
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int verbosity;
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/* --------------------------------------------------------------------- */
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int add(FloatImg *a, FloatImg *b)
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{
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int x, y;
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int offset;
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double tb;
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fimg_timer_set(0);
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for (x=0; x<a->width; x++) {
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for (y=0; y<a->height; y++) {
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offset = x + (y * a->width);
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a->R[offset] += b->R[offset];
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a->G[offset] += b->G[offset];
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a->B[offset] += b->B[offset];
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}
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}
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tb = fimg_timer_get(0);
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fprintf(stderr, "%s = %f seconds\n", __func__, tb);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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void fait_un_dessin(char *fname)
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{
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FloatImg dessin;
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double tb;
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puts("");
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fimg_timer_set(0);
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fimg_create(&dessin, 3200, 2400, 3);
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fimg_draw_something(&dessin);
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fimg_dump_to_file(&dessin, "dessin.fimg", 0);
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fimg_destroy(&dessin);
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tb = fimg_timer_get(0);
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fprintf(stderr, "%s = %f seconds\n", __func__, tb);
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puts("");
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}
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/* --------------------------------------------------------------------- */
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int parse_WxH(char *str, int *pw, int *ph)
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{
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// char *ptr;
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int foo, w, h;
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#if DEBUG_LEVEL
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fprintf(stderr, ">>> %s ( '%s' %p %p )\n", __func__,
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str, pw, ph);
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#endif
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foo = sscanf(str, "%dx%d", &w, &h);
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if (2 != foo) {
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fprintf(stderr, "%s : arg '%s' is invalid\n", __func__, str);
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return foo;
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}
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*pw = w; *ph = h;
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return 2;
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}
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/* --------------------------------------------------------------------- */
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void help(int k)
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{
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puts("Options :");
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puts("\t-d WxH\timage size");
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exit(0);
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}
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/* --------------------------------------------------------------------- */
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int main(int argc, char *argv[])
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{
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FloatImg fimgA, fimgB;
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int foo, opt;
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int W = 800, H = 600;
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double tb;
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while ((opt = getopt(argc, argv, "d:hv")) != -1) {
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switch(opt) {
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case 'd': parse_WxH(optarg, &W, &H);
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break;
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case 'h': help(0); break;
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case 'v': verbosity++; break;
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}
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}
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if (verbosity) fimg_print_version(0);
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fimg_create(&fimgA, W, H, 3);
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fimg_create(&fimgB, W, H, 3);
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fimg_timer_set(0);
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fimg_drand48(&fimgB, 100.0);
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fimg_drand48(&fimgA, 100.0);
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add(&fimgA, &fimgB);
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tb = fimg_timer_get(0);
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fprintf(stderr, "%s = %f seconds\n", __func__, tb);
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foo = fimg_save_as_pnm(&fimgA, "drand48.pnm", 0);
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fimg_destroy(&fimgA);
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fimg_destroy(&fimgB);
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return 0;
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}
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/* --------------------------------------------------------------------- */
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