From 6a1460874253ad6dce25a90dd3ab5bfe95e718c0 Mon Sep 17 00:00:00 2001
From: Laszlo Agocs <laszlo.agocs@qt.io>
Date: Tue, 22 May 2018 13:47:31 +0200
Subject: QOpenGLTexture: Enable multisample 2D textures on GLES 3.1+

Task-number: QTBUG-68510
Change-Id: Ib224189906b595bbae5aab95c888dd13e94171aa
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
---
 src/gui/opengl/qopengltexturehelper.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/gui/opengl/qopengltexturehelper.cpp b/src/gui/opengl/qopengltexturehelper.cpp
index be88946e90..6709edc4e2 100644
--- a/src/gui/opengl/qopengltexturehelper.cpp
+++ b/src/gui/opengl/qopengltexturehelper.cpp
@@ -188,6 +188,12 @@ QOpenGLTextureHelper::QOpenGLTextureHelper(QOpenGLContext *context)
     TexBufferRange = 0;
     TextureView = 0;
 
+    // OpenGL ES 3.1+ has TexStorage2DMultisample
+    if (ctx->format().version() >= qMakePair(3, 1)) {
+        QOpenGLExtraFunctionsPrivate *extra = static_cast<QOpenGLExtensions *>(context->extraFunctions())->d();
+        TexStorage2DMultisample = extra->f.TexStorage2DMultisample;
+    }
+
 #endif
 
     if (context->isOpenGLES() && context->hasExtension(QByteArrayLiteral("GL_OES_texture_3D"))) {
-- 
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