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gd-libgd / tests / gdimagescatterex / bug00208_1.c

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#include "gd.h"
#include "gdtest.h"

int main()
{
	gdImagePtr im, ex;
	FILE *fp;
	gdScatter s;
	CuTestImageResult r;

	fp = fopen(GDTEST_TOP_DIR "/gdimagescatterex/bug00208.png", "rb");
	if (!fp) {
		fprintf(stderr, "could not open file\n");
		return 1;
	}
	im = gdImageCreateFromPng(fp);
	fclose(fp);
	if (!im) {
		fprintf(stderr, "could not create image\n");
		return 1;
	}

	s.sub  = 1;
	s.plus = 3;
	s.seed = 0;
	s.num_colors = 0;
	if (!gdImageScatterEx(im, &s)) {
		gdImageDestroy(im);
		fprintf(stderr, "could not scatter\n");
		return 1;
	}

	fp = fopen(GDTEST_TOP_DIR "/gdimagescatterex/bug00208_1.png", "rb");
	if (!fp) {
		fprintf(stderr, "could not open file\n");
		gdImageDestroy(im);
		return 1;
	}
	ex = gdImageCreateFromPng(fp);
	fclose(fp);
	if (!ex) {
		fprintf(stderr, "could not create image\n");
		gdImageDestroy(im);
		return 1;
	}
	r.pixels_changed = 0;
	gdTestImageDiff(im, ex, NULL, &r);
	gdImageDestroy(ex);
	gdImageDestroy(im);
	if (r.pixels_changed > 10000) {
		fprintf(stderr, "too much diff: %d\n", r.pixels_changed);
		return 1;
	}
	return 0;
}