From 3ada211c30cb21d74dfbf4164f6e685efc39bf76 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fredrik=20H=C3=B6glund?= <fredrik@kde.org>
Date: Tue, 11 Jan 2011 22:32:51 +0000
Subject: [PATCH] Don't enable loose binding with Gallium drivers in Mesa 7.10.

It's currently broken because of a regression in the mesa state tracker.

FIXED-IN: 4.6.0
BUG: 259872

svn path=/branches/KDE/4.6/kdebase/workspace/; revision=1213870
---
 lib/kwinglplatform.cpp | 9 +++++++++
 lib/kwinglplatform.h   | 5 +++++
 2 files changed, 14 insertions(+)

diff --git a/lib/kwinglplatform.cpp b/lib/kwinglplatform.cpp
index 04ad9241ca..b4b0128d51 100644
--- a/lib/kwinglplatform.cpp
+++ b/lib/kwinglplatform.cpp
@@ -716,6 +716,10 @@ void GLPlatform::detect()
 
         m_limitedGLSL = m_supportsGLSL && m_chipClass < I965;
     }
+
+    // Loose binding is broken with Gallium drivers in Mesa 7.10
+    if (isGalliumDriver() && mesaVersion() >= kVersionNumber(7, 10))
+        m_looseBinding = false;
 }
 
 static void print(const QString &label, const QString &setting)
@@ -835,6 +839,11 @@ bool GLPlatform::isMesaDriver() const
     return mesaVersion() > 0;
 }
 
+bool GLPlatform::isGalliumDriver() const
+{
+    return galliumVersion() > 0;
+}
+
 bool GLPlatform::isRadeon() const
 {
     return m_chipClass >= R100 && m_chipClass <= UnknownRadeon;
diff --git a/lib/kwinglplatform.h b/lib/kwinglplatform.h
index 0769912065..0228d6522d 100644
--- a/lib/kwinglplatform.h
+++ b/lib/kwinglplatform.h
@@ -218,6 +218,11 @@ public:
      */
     bool isMesaDriver() const;
 
+    /**
+     * Returns true if the driver is a Gallium driver, and false otherwise.
+     */
+    bool isGalliumDriver() const;
+
     /**
      * Returns true if the GPU is a Radeon GPU, and false otherwise.
      */