/**

 * Regression test for <https://github.com/libgd/libgd/issues/309>.

 *

 * We test that an image with 64x64 pixels reports only a single chunk in the

 * GD2 image header when the chunk size is 64.

 */

#include "gd.h"

#include "gdtest.h"

int main()

{

    gdImagePtr im;

    unsigned char *buf;

    int size, word;

    im = gdImageCreate(64, 64);

    gdImageColorAllocate(im, 0, 0, 0);

    buf = gdImageGd2Ptr(im, 64, 1, &size);

    gdImageDestroy(im);

    word = buf[10] << 8 | buf[11];

    gdTestAssertMsg(word == 64, "chunk size is %d, but expected 64\n", word);

    word = buf[14] << 8 | buf[15];

    gdTestAssertMsg(word == 1, "x chunk count is %d, but expected 1\n", word);

    word = buf[16] << 8 | buf[17];

    gdTestAssertMsg(word == 1, "y chunk count is %d, but expected 1\n", word);

    gdTestAssertMsg(size == 5145, "file size is %d, but expected 5145\n", size);

    gdFree(buf);

    return gdNumFailures();

}