From 92e9fcc25c62870c383c8558d576abc509a8c683 Mon Sep 17 00:00:00 2001
From: Tom Cooksey <thomas.cooksey@nokia.com>
Date: Fri, 4 Dec 2009 19:42:07 +0100
Subject: [PATCH 0945/1244] Add EGL_BUFFER_SIZE to QEglProperties::reduceConfiguration()

Reviewed-by: Trustme
---
 src/gui/egl/qeglproperties.cpp |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/src/gui/egl/qeglproperties.cpp b/src/gui/egl/qeglproperties.cpp
index 2d37edb..4d4410a 100644
--- a/src/gui/egl/qeglproperties.cpp
+++ b/src/gui/egl/qeglproperties.cpp
@@ -229,6 +229,15 @@ void QEglProperties::setRenderableType(QEgl::API api)
 // reductions in complexity are possible.
 bool QEglProperties::reduceConfiguration()
 {
+    // EGL chooses configs with the highest color depth over
+    // those with smaller (but faster) lower color depths. One
+    // way around this is to set EGL_BUFFER_SIZE to 16, which
+    // trumps the others. Of course, there may not be a 16-bit
+    // config avaliable, so it's the first restraint we remove.
+    if (value(EGL_BUFFER_SIZE) == 16) {
+        removeValue(EGL_BUFFER_SIZE);
+        return true;
+    }
     if (removeValue(EGL_SAMPLE_BUFFERS)) {
         removeValue(EGL_SAMPLES);
         return true;
-- 
1.6.5