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/**
* Test that a zero determinant matrix causes gdTransformAffineCopy() to fail
*
* See <https://github.com/libgd/libgd/issues/583>
*/
#include "gd.h"
#include "gdtest.h"
int main()
{
gdImagePtr src, dst;
gdRect rect = {0, 0, 8, 8};
double matrix[] = {1, 1, 1, 1, 1, 1};
int white;
int res;
src = gdImageCreateTrueColor(8, 8);
gdTestAssert(src != NULL);
dst = gdImageCreateTrueColor(8, 8);
gdTestAssert(dst != NULL);
white = gdImageColorAllocate(src, 255, 255, 255);
gdImageFilledRectangle(src, 0, 0, 7, 7, white);
res = gdTransformAffineCopy(dst, 0, 0, src, &rect, matrix);
gdTestAssert(res == GD_FALSE);
gdImageDestroy(dst);
gdImageDestroy(src);
return gdNumFailures();
}
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