1 files changed, 40 insertions, 0 deletions
diff --git a/rtgrpblib_create_raster.c b/rtgrpblib_create_raster.c
new file mode 100644
index 0000000..89ebad6
--- /dev/null
+++ b/rtgrpblib_create_raster.c
@@ -0,0 +1,40 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+#ifndef TEST
+
+
+RASTER *
+rtgrpblib_create_raster(size_t width, size_t height)
+{
+	RASTER *raster;
+
+	if (!width || !height) {
+		errno = EINVAL;
+		return NULL;
+	}
+
+	if (width > (SIZE_MAX - offsetof(RASTER, cells)) / sizeof(*raster->cells) / height)
+		goto enomem;
+	raster = calloc(1, offsetof(RASTER, cells) + height * width * sizeof(*raster->cells));
+	if (!raster) {
+	enomem:
+		errno = ENOMEM;
+		return NULL;
+	}
+
+	raster->width = width;
+	raster->height = height;
+	raster->draftness = 0.5;
+	return raster;
+}
+
+
+#else
+
+int
+main(void)
+{
+	return 0; /* TODO add test */
+}
+
+#endif