/* Exercise all scaling with all interpolation modes and ensure that

 * at least, something comes back. */

#include <stdio.h>

#include "gd.h"

#include "gdtest.h"

#define X 100

#define Y 100

#define NX 20

#define NY 20

int main() {

    int method, i;

    for(method = GD_BELL; method <= GD_TRIANGLE; method++) {   /* GD_WEIGHTED4 is unsupported. */

        gdImagePtr im[2];

        // printf("Method = %d\n", method);

        im[0] = gdImageCreateTrueColor(X, Y);

        im[1] = gdImageCreatePalette(X, Y);

        for (i = 0; i < 2; i++) {

            gdImagePtr result;

            // printf("    %s\n", i == 0 ? "truecolor" : "palette");

            gdImageFilledRectangle(im[i], 0, 0, X-1, Y-1,

                                   gdImageColorExactAlpha(im[i], 255, 255, 255, 0));

            gdImageSetInterpolationMethod(im[i], method);

            gdTestAssert(im[i]->interpolation_id == method); /* No getter yet. */

            result = gdImageScale(im[i], NX, NY);

            gdTestAssert(result != NULL);

            gdTestAssert(result != im[i]);

            if (result == NULL) {

				gdTestErrorMsg("gdImageScale failed (method: %i, im:%i).\n", method, i);

				break;

			}

            gdTestAssert(result->sx == NX && result->sy == NY);

            gdImageDestroy(result);

            gdImageDestroy(im[i]);

        }/* for */

    }/* for*/

    return gdNumFailures();

}/* main*/