From 34edf6b61403c723ac1a7f280425a3254da573fe Mon Sep 17 00:00:00 2001
From: Colin Clark <colin.clark@cclark.uk>
Date: Fri, 3 Sep 2021 12:03:49 +0100
Subject: [PATCH] Fix #892: stereo side-by-side mode broken by commit 89c559

https://github.com/BestImageViewer/geeqie/issues/892

Stereo modes side-by-side and top-bottom use two pixbuf-renderers. This
was not taken into account.
---
 src/renderer-tiles.c | 31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/renderer-tiles.c b/src/renderer-tiles.c
index 9b671759..cced0814 100644
--- a/src/renderer-tiles.c
+++ b/src/renderer-tiles.c
@@ -2273,8 +2273,35 @@ static gboolean rt_draw_cb(GtkWidget *widget, cairo_t *cr, gpointer data)
 	GList *work;
 	OverlayData *od;
 
-	cairo_set_source_surface (cr, rt->surface, 0, 0);
-	cairo_paint(cr);
+	if (rt->stereo_mode && (PR_STEREO_HORIZ | PR_STEREO_VERT))
+		{
+		cairo_push_group(cr);
+		cairo_set_source_rgb(cr, (double)rt->pr->color.red / 65535, (double)rt->pr->color.green / 65535, (double)rt->pr->color.blue / 65535);
+
+		if (rt->stereo_mode & PR_STEREO_HORIZ)
+			{
+			cairo_rectangle(cr, rt->stereo_off_x, 0, rt->pr->viewport_width, rt->pr->viewport_height);
+			}
+		else
+			{
+			cairo_rectangle(cr, 0, rt->stereo_off_y, rt->pr->viewport_width, rt->pr->viewport_height);
+			}
+		cairo_clip(cr);
+		cairo_paint(cr);
+
+		cairo_rectangle(cr, rt->pr->x_offset + rt->stereo_off_x, rt->pr->y_offset + rt->stereo_off_y, rt->pr->vis_width, rt->pr->vis_height);
+		cairo_clip(cr);
+		cairo_set_source_surface(cr, rt->surface, 0, 0);
+		cairo_paint(cr);
+
+		cairo_pop_group_to_source(cr);
+		cairo_paint(cr);
+		}
+	else
+		{
+		cairo_set_source_surface(cr, rt->surface, 0, 0);
+		cairo_paint(cr);
+		}
 
 	work = rt->overlay_list;
 	while (work)
-- 
2.20.1