From 7a30381733d7b03d109b85dcfb7b9c71a2d25b21 Mon Sep 17 00:00:00 2001
From: Tor Andersson <tor.andersson@artifex.com>
Date: Thu, 26 Apr 2018 14:10:27 +0200
Subject: gl: Use black backdrop when displaying an inverted (black) page.

---
 platform/gl/gl-main.c | 4 ++++
 platform/gl/gl-ui.c   | 1 -
 2 files changed, 4 insertions(+), 1 deletion(-)

(limited to 'platform/gl')

diff --git a/platform/gl/gl-main.c b/platform/gl/gl-main.c
index c2697489..c3c95618 100644
--- a/platform/gl/gl-main.c
+++ b/platform/gl/gl-main.c
@@ -1237,6 +1237,10 @@ void do_main(void)
 
 void run_main_loop(void)
 {
+	if (currentinvert)
+		glClearColor(0, 0, 0, 1);
+	else
+		glClearColor(0.3f, 0.3f, 0.3f, 1);
 	ui_begin();
 	fz_try(ctx)
 	{
diff --git a/platform/gl/gl-ui.c b/platform/gl/gl-ui.c
index 3ae7f6b5..5fcede1b 100644
--- a/platform/gl/gl-ui.c
+++ b/platform/gl/gl-ui.c
@@ -457,7 +457,6 @@ void ui_begin(void)
 	ui.overlay = 0;
 
 	glViewport(0, 0, ui.window_w, ui.window_h);
-	glClearColor(0.3f, 0.3f, 0.3f, 1.0f);
 	glClear(GL_COLOR_BUFFER_BIT);
 
 	glMatrixMode(GL_PROJECTION);
-- 
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