render: Add oversample argument

1 files changed, 13 insertions, 1 deletions

diff --git a/main.c b/main.c
index 72c147b..ec70e49 100644
--- a/main.c
+++ b/main.c
@@ -33,7 +33,7 @@ const char *argp_program_version =
 
 typedef struct {
 	bool verbose;
-	unsigned int threads, bpc, quality;
+	unsigned int threads, bpc, quality, oversample;
 	float scale;
 	bool transparent;
 } render_arguments;
@@ -52,6 +52,16 @@ static error_t parse_render_opt (int key, char *arg,
 			break;
 		}
 
+		case 'o': {
+			int i = atoi (arg);
+			if (i < 1) {
+				argp_error (state, "Oversample must be >= 1");
+			} else {
+				arguments->oversample = i;
+			}
+			break;
+		}
+
 		case 'q': {
 			int i = atoi (arg);
 			if (i < 1) {
@@ -117,6 +127,7 @@ static void do_render (const render_arguments * const arguments) {
 	genome->height *= arguments->scale;
 	genome->width *= arguments->scale;
 	genome->pixels_per_unit *= arguments->scale;
+	genome->spatial_oversample = arguments->oversample;
 
 	flam3_frame f;
 	f.genomes = genome;
@@ -406,6 +417,7 @@ int main (int argc, char **argv) {
 				{"scale", 's', "factor", 0, "Scale image dimensions by factor (1.0)" },
 				{"bpc", 'b', "8|16", 0, "Bits per channel of output image (8)" },
 				{"quality", 'q', "num", 0, "Average samples per pixel (100)" },
+				{"oversample", 'o', "num", 0, "Super-/Oversample image (1)" },
 				{ 0 },
 				};
 		const char doc[] = "vlame3-render -- a fractal flame renderer";