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From 6b29466ed7b5328ee61c1751bd4efb72f70946d3 Mon Sep 17 00:00:00 2001
From: Tom Cooksey <thomas.cooksey@nokia.com>
Date: Tue, 15 Dec 2009 17:26:37 +0100
Subject: [PATCH 1115/1244] Fix QGLWidgets created with an alpha channel on X11/EGL
If the QGLWidget's QGLFormat says it should have an alpha
channel, try to find an ARGB Visual.
Reviewed-By: Trond
Task-number: QT-2602
---
src/opengl/qgl_x11egl.cpp | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/src/opengl/qgl_x11egl.cpp b/src/opengl/qgl_x11egl.cpp
index b10e7e9..19026b3 100644
--- a/src/opengl/qgl_x11egl.cpp
+++ b/src/opengl/qgl_x11egl.cpp
@@ -336,7 +336,7 @@ void QGLWidget::setContext(QGLContext *context, const QGLContext* shareContext,
// If the application has set WA_TranslucentBackground and not explicitly set
// the alpha buffer size to zero, modify the format so it have an alpha channel
QGLFormat& fmt = d->glcx->d_func()->glFormat;
- const bool tryArgbVisual = testAttribute(Qt::WA_TranslucentBackground);
+ const bool tryArgbVisual = testAttribute(Qt::WA_TranslucentBackground) || fmt.alpha();
if (tryArgbVisual && fmt.alphaBufferSize() == -1)
fmt.setAlphaBufferSize(1);
--
1.6.5
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