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-rw-r--r--Build/source/libs/gd/libgd-src/tests/gdimageline/bug00315.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/Build/source/libs/gd/libgd-src/tests/gdimageline/bug00315.c b/Build/source/libs/gd/libgd-src/tests/gdimageline/bug00315.c
new file mode 100644
index 00000000000..719d155e0ba
--- /dev/null
+++ b/Build/source/libs/gd/libgd-src/tests/gdimageline/bug00315.c
@@ -0,0 +1,37 @@
+/**
+ * Regression test for <https://github.com/libgd/libgd/issues/315>
+ *
+ * We're testing that a single-pointed gdImageAALine() is drawn as a single
+ * non-antialized pixel, according to (two-pointed) vertical and horizontal
+ * lines.
+ */
+
+#include "gd.h"
+#include "gdtest.h"
+
+int main()
+{
+ gdImagePtr im;
+ int white, black;
+ char *path;
+
+ im = gdImageCreateTrueColor(6, 6);
+ white = gdImageColorAllocate(im, 255, 255, 255);
+ black = gdImageColorAllocate(im, 0, 0, 0);
+ gdImageFilledRectangle(im, 0,0, 5,5, white);
+
+ gdImageLine(im, 4,4, 4,4, black);
+ gdImageLine(im, 1,4, 2,4, black);
+ gdImageLine(im, 4,1, 4,2, black);
+
+ gdImageSetAntiAliased(im, black);
+ gdImageLine(im, 1,1, 1,1, gdAntiAliased);
+
+ path = gdTestFilePath2("gdimageline", "bug00315_exp.png");
+ gdAssertImageEqualsToFile(path, im);
+ gdFree(path);
+
+ gdImageDestroy(im);
+
+ return gdNumFailures();
+}