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/*
Test writing of XBM images with a width that is not a multiple of 8
We create an image with a width of 11 pixels, and draw a circle on it.
To test that the padding is correctly applied, we write the image to disk
and assert that the number of bytes written matches our expectation.
See also <https://github.com/libgd/libgd/issues/170>.
*/
#include <inttypes.h>
#include "gd.h"
#include "gdtest.h"
#ifdef _WIN32
int main()
{
/* skip for now */
return 0;
}
#else
int main()
{
gdImagePtr im;
int black;
FILE *outFile;
gdIOCtx *out;
off_t length;
/* create the test image */
im = gdImageCreate(11, 11);
gdImageColorAllocate(im, 255, 255, 255);
black = gdImageColorAllocate(im, 0, 0, 0);
gdImageArc(im, 5, 5, 10, 10, 0, 360, black);
/* write the file to disk, note the file length and delete the file */
outFile = gdTestTempFp();
out = gdNewFileCtx(outFile);
gdTestAssert(out != NULL);
gdImageXbmCtx(im, "github_bug_170.xbm", 1, out);
out->gd_free(out);
length = ftello(outFile);
fclose(outFile);
gdImageDestroy(im);
gdTestAssertMsg(length == 250, "expected to write 250 bytes; %jd bytes written", (intmax_t) length);
return gdNumFailures();
}
#endif
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