libansilove

commit 1e7a7d41b4b80cc46b2be3f8a5800e6e1657917c
parent 8a9349ad65dabe1dec7ee7c345781ec3c6bc3b26
Author: Frederic Cambus <fred@statdns.com>
Date:   Wed, 26 Sep 2018 18:55:50 +0200

Modify the output function to allow creating output using DOS aspect ratio. Thanks to Nail/Fire for the suggestions and tips!

Diffstat:
M
src/output.c
 | 
24
+++++++++++++++++++++++-

1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/src/output.c b/src/output.c
@@ -15,9 +15,31 @@
 int output(struct ansilove_ctx *ctx, struct ansilove_options *options, gdImagePtr im_Source) {
 	// XXX Error handling
 	// XXX The caller must invoke gdFree()
+	// XXX Allow combining DOS aspect ratio and Retina
 
-	if (!options->retinaScaleFactor) {
+	if (!options->retinaScaleFactor && !options->dos) {
 		ctx->png.buffer = gdImagePngPtr(im_Source, &ctx->png.length);
+	} else if (options->dos) {
+		gdImagePtr im_Resize;
+		gdImagePtr im_DOS;
+
+		im_Resize = gdImageCreate(im_Source->sx,
+		    im_Source->sy * 27);
+
+		gdImageCopyResized(im_Resize, im_Source, 0, 0, 0, 0,
+		    im_Resize->sx, im_Resize->sy, im_Source->sx, im_Source->sy);
+
+		gdImageDestroy(im_Source);
+
+		im_DOS = gdImageCreateTrueColor(im_Resize->sx,
+		    im_Resize->sy / 20);
+
+		gdImageCopyResampled(im_DOS, im_Resize, 0, 0, 0, 0,
+		    im_DOS->sx, im_DOS->sy, im_Resize->sx, im_Resize->sy);
+
+		gdImageDestroy(im_Resize);
+
+		ctx->png.buffer = gdImagePngPtr(im_DOS, &ctx->png.length);
 	} else {
 		gdImagePtr im_Retina;