From b6e9711add7a42c260cce5c133916668b298c129 Mon Sep 17 00:00:00 2001
From: Artem Pavlenko <artem@mapnik.org>
Date: Wed, 22 Jan 2020 10:49:10 +0000
Subject: [PATCH] Mark output image as premultiplied alpha

---
 utils/svg2png/svg2png.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/utils/svg2png/svg2png.cpp b/utils/svg2png/svg2png.cpp
index fde92da36..269e722ed 100644
--- a/utils/svg2png/svg2png.cpp
+++ b/utils/svg2png/svg2png.cpp
@@ -87,8 +87,7 @@ struct main_marker_visitor
             std::clog << "SVG BBOX:" << b << std::endl;
             std::clog << "Output image dimensions:[" << output_width << "," << output_height << "]" << std::endl;
         }
-        mapnik::image_rgba8 im(output_width, output_height);
-        im.set(0x00ffffff);
+        mapnik::image_rgba8 im(output_width, output_height, true, true);
         agg::rendering_buffer buf(im.bytes(), im.width(), im.height(), im.row_size());
         pixfmt pixf(buf);
         renderer_base renb(pixf);