59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include "gd.h"
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#include "gdtest.h"
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int main()
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{
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gdImagePtr im, exp;
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char *path, filename[2048];
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const char *file_im = "gdimagerotate/remirh128.png";
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FILE *fp;
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int color;
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int error = 0;
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int angle;
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fp = gdTestFileOpen(file_im);
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im = gdImageCreateFromPng(fp);
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fclose(fp);
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if (!im) {
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gdTestErrorMsg("loading %s failed.\n", file_im);
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return 1;
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}
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color = gdImageColorAllocateAlpha(im, 255, 255, 255, 127);
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if (color < 0) {
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gdTestErrorMsg("allocation color from image failed.\n");
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gdImageDestroy(im);
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return 1;
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}
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for (angle = 0; angle <= 180; angle += 15) {
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exp = gdImageRotateInterpolated(im, angle, color);
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if (!exp) {
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gdTestErrorMsg("rotating image failed for %03d.\n", angle);
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gdImageDestroy(im);
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return 1;
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}
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sprintf(filename, "bug00067_%03d_exp.png", angle);
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path = gdTestFilePath2("gdimagerotate", filename);
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if (!gdAssertImageEqualsToFile(path, exp)) {
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gdTestErrorMsg("comparing rotated image to %s failed.\n", path);
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error += 1;
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}
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free(path);
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gdImageDestroy(exp);
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}
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gdImageDestroy(im);
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return error;
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}
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