From e8dd969e78a5c697d934d1a07bf8d8aba3ff8de8 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Mon, 31 May 2021 23:53:41 +0400
Subject: [PATCH] Fix paint-image vertex shader on macOS.

---
 .../SourceFiles/calls/group/calls_group_viewport_opengl.cpp  | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp b/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp
index 33536a37e3..06a01ce1b1 100644
--- a/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp
+++ b/Telegram/SourceFiles/calls/group/calls_group_viewport_opengl.cpp
@@ -331,7 +331,10 @@ void Viewport::RendererGL::init(
 	_imageProgram.emplace();
 	LinkProgram(
 		&*_imageProgram,
-		_frameVertexShader,
+		VertexShader({
+			VertexViewportTransform(),
+			VertexPassTextureCoord(),
+		}),
 		FragmentShader({
 			FragmentSampleARGB32Texture(),
 		}));