Add aspect ratio to monitor test mode listing

ago%!(EXTRA string=9 years) · 9d42e146e7
parent c156b50e4c
commit 9d42e146e7
1 changed files with 8 additions and 1 deletions
--- a/tests/monitors.c
+++ b/tests/monitors.c
@ -49,14 +49,21 @@ static void usage(void)
    printf("       monitors -h\n");
 }

+static int euclid(int a, int b)
+{
+    return b ? euclid(b, a % b) : a;
+}
+
 static const char* format_mode(const GLFWvidmode* mode)
 {
    static char buffer[512];
+    const int gcd = euclid(mode->width, mode->height);

    sprintf(buffer,
-            "%i x %i x %i (%i %i %i) %i Hz",
+            "%i x %i x %i (%i:%i) (%i %i %i) %i Hz",
            mode->width, mode->height,
            mode->redBits + mode->greenBits + mode->blueBits,
+            mode->width / gcd, mode->height / gcd,
            mode->redBits, mode->greenBits, mode->blueBits,
            mode->refreshRate);