Implement basic PPM writing function

`write_ppm` generates a PPM image using a given generation function.
Output is written using `std::ofstream`.
The library is intended to become a straight forward way to test out various visualizations.

1 files changed, 12 insertions, 0 deletions

diff --git a/test.cc b/test.cc
new file mode 100644
index 0000000..36f637d
--- /dev/null
+++ b/test.cc
@@ -0,0 +1,12 @@
+#include <imgen.h>
+
+int main(int, char*[]) {
+	imgen::write_ppm(
+		"test.ppm",
+		500,
+		500,
+		[](std::size_t x, std::size_t y) -> imgen::color {
+			return imgen::color(255, x % 255, y % 255);
+		}
+	);
+}