summaryrefslogtreecommitdiff
path: root/Build/source/libs/gd/libgd-src/tests/gdimagecontrast/basic.c
diff options
context:
space:
mode:
Diffstat (limited to 'Build/source/libs/gd/libgd-src/tests/gdimagecontrast/basic.c')
-rw-r--r--Build/source/libs/gd/libgd-src/tests/gdimagecontrast/basic.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/Build/source/libs/gd/libgd-src/tests/gdimagecontrast/basic.c b/Build/source/libs/gd/libgd-src/tests/gdimagecontrast/basic.c
new file mode 100644
index 00000000000..66c17ab9fb9
--- /dev/null
+++ b/Build/source/libs/gd/libgd-src/tests/gdimagecontrast/basic.c
@@ -0,0 +1,41 @@
+/**
+ * Basic test for gdImageContrast()
+ */
+
+
+#include "gd.h"
+#include "gdtest.h"
+
+
+static void test_contrast(double contrast);
+
+
+int main()
+{
+ test_contrast(+50.0);
+ test_contrast(-50.0);
+
+ return gdNumFailures();
+}
+
+
+static void test_contrast(double contrast)
+{
+ gdImagePtr im;
+ FILE *fp;
+ char basename[256];
+ char *path;
+
+ fp = gdTestFileOpen2("gdimagecontrast", "basic.png");
+ im = gdImageCreateFromPng(fp);
+ fclose(fp);
+
+ gdImageContrast(im, contrast);
+
+ sprintf(basename, "basic%+03.0f.png", contrast);
+ path = gdTestFilePath2("gdimagecontrast", basename);
+ gdAssertImageEqualsToFile(path, im);
+ gdFree(path);
+
+ gdImageDestroy(im);
+}