various user interface related updates

1 files changed, 25 insertions, 0 deletions

diff --git a/src/render/image.cc b/src/render/image.cc
index 7ce8113..e740d56 100644
--- a/src/render/image.cc
+++ b/src/render/image.cc
@@ -44,6 +44,31 @@ void Image::swap_channels()
 	}
 }
 
+void Image::pad()
+{
+	unsigned int w = width();
+	unsigned int h = height();
+
+	if ((w % 8) != 0) {
+		image_width = w + (8 - (w % 8));
+	}
+	
+	if ((w % 8) != 0) {
+		image_height = h + (8 - (h % 8));
+	}
+
+	unsigned char *image_new = (unsigned char *) malloc(size());
+	memset(image_new, 0, size());
+
+	for (size_t y =0; y < h; y++) {
+		memcpy((void *)&image_new[y * image_width * image_channels],
+			(void *)image_data[y * w * image_channels], (size_t) w);
+	}
+
+	free(image_data);
+	image_data = image_new;
+}
+
 void Image::flip()
 {
 	unsigned char line[image_width*image_channels];