Don't resize up every image

1 files changed, 3 insertions, 1 deletions

diff --git a/icat.go b/icat.go
index 9382332..f7f31df 100644
--- a/icat.go
+++ b/icat.go
@@ -231,7 +231,9 @@ func medianCut(img image.Image) color.Palette {
 	return palette
 }
 
-func printImg(img image.Image, x, y, pixelX, pixelY int) error {
+func printImg(img image.Image, maxX, maxY, pixelX, pixelY int) error {
+	x := min(img.Bounds().Dx(), maxX)
+	y := min(img.Bounds().Dy(), maxY)
 	// Try not to stretch the image.
 	if y == 0 || x != 0 && img.Bounds().Dy()*x <= img.Bounds().Dx()*y*pixelY/pixelX {
 		y = divRound(img.Bounds().Dy()*x*pixelX, img.Bounds().Dx()*pixelY)