#include <stdio.h>

#include <stdlib.h>

#include "gd.h"

#include "gdtest.h"

int main()

{

	gdImagePtr im, exp;

	char *path, filename[2048];

	const char *file_im = "gdimagerotate/remirh128.png";

	FILE *fp;

	int color;

	int error = 0;

	int angle;

	fp = gdTestFileOpen(file_im);

	im = gdImageCreateFromPng(fp);

	fclose(fp);

	if (!im) {

		gdTestErrorMsg("loading %s failed.\n", file_im);

		return 1;

	}

	color = gdImageColorAllocateAlpha(im, 255, 255, 255, 127);

	if (color < 0) {

		gdTestErrorMsg("allocation color from image failed.\n");

		gdImageDestroy(im);

		return 1;

	}

	for (angle = 0; angle <= 180; angle += 15) {

		exp = gdImageRotateInterpolated(im, angle, color);

		if (!exp) {

			gdTestErrorMsg("rotating image failed for %03d.\n", angle);

			gdImageDestroy(im);

			return 1;

		}

		sprintf(filename, "bug00067_%03d_exp.png", angle);

		path = gdTestFilePath2("gdimagerotate", filename);

		if (!gdAssertImageEqualsToFile(path, exp)) {

			gdTestErrorMsg("comparing rotated image to %s failed.\n", path);

			error += 1;

		}

		free(path);

		gdImageDestroy(exp);

	}

	gdImageDestroy(im);

	return error;

}