gentoo-overlay/app-text/evince/files/evince-3.14.1-incorrect-resolution.patch

From 24a3d032728ab6cc530fab45d4eb5e232677c928 Mon Sep 17 00:00:00 2001
From: Gabor Kelemen <kelemeng@gnome.hu>
Date: Fri, 10 Oct 2014 11:49:26 +0200
Subject: tiff: Handle incorrect 0 resolution found in TIFF files

https://bugzilla.gnome.org/show_bug.cgi?id=646414

diff --git a/backend/tiff/tiff-document.c b/backend/tiff/tiff-document.c
index 80ac0f5..8f40934 100644
--- a/backend/tiff/tiff-document.c
+++ b/backend/tiff/tiff-document.c
@@ -172,9 +172,10 @@ tiff_document_get_resolution (TiffDocument *tiff_document,
 			      gfloat       *x_res,
 			      gfloat       *y_res)
 {
-	gfloat x = 72.0, y = 72.0;
+	gfloat x = 0.0;
+	gfloat y = 0.0;
 	gushort unit;
-	
+
 	if (TIFFGetField (tiff_document->tiff, TIFFTAG_XRESOLUTION, &x) &&
 	    TIFFGetField (tiff_document->tiff, TIFFTAG_YRESOLUTION, &y)) {
 		if (TIFFGetFieldDefaulted (tiff_document->tiff, TIFFTAG_RESOLUTIONUNIT, &unit)) {
@@ -185,8 +186,9 @@ tiff_document_get_resolution (TiffDocument *tiff_document,
 		}
 	}
 
-	*x_res = x;
-	*y_res = y;
+	/* Handle 0 values: some software set TIFF resolution as `0 , 0` see bug #646414 */
+	*x_res = x > 0 ? x : 72.0;
+	*y_res = y > 0 ? y : 72.0;
 }
 
 static void
-- 
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