Use spng to load thumbnails

Speed matters here, and this makes us about 20 percent faster at loading large directories. Moreover, libpng's PNG_ALPHA_BROKEN is indeed broken. Thumbnails have a fairly fixed format, so there are very few practical corner cases that could have been missed.
2021-11-12 10:37:02 +01:00
parent afc08df234
commit 21b110a7d6
3 changed files with 106 additions and 115 deletions
--- a/meson.build
+++ b/meson.build
@@ -7,7 +7,7 @@ gdkpixbuf = dependency('gdk-pixbuf-2.0', required : get_option('gdk-pixbuf'))
 dependencies = [
 	dependency('gtk+-3.0'),
 	dependency('libturbojpeg'),
-	dependency('libpng', version : '>=1.5.4'),
+	dependency('spng', version : '>=0.7.0'),
 	dependency('pixman-1'),
 	libraw,
 	librsvg,