From 8005aa8b5a1d70481e50fa7f508389236748303e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Wed, 23 Apr 2014 08:19:47 +0200
Subject: [PATCH] Export supported openGLPlatformInterfaces to the DBus
 interface

Allows the KCM to know which platforms are supported (e.g. glx and egl or
just egl).
---
 composite.cpp                | 16 ++++++++++++++++
 composite.h                  | 11 +++++++++++
 org.kde.kwin.Compositing.xml |  1 +
 3 files changed, 28 insertions(+)

diff --git a/composite.cpp b/composite.cpp
index 1d8d2838ee..6351e520f7 100644
--- a/composite.cpp
+++ b/composite.cpp
@@ -862,6 +862,22 @@ QString Compositor::compositingType() const
     }
 }
 
+QStringList Compositor::supportedOpenGLPlatformInterfaces() const
+{
+    QStringList interfaces;
+    bool supportsGlx = (kwinApp()->operationMode() == Application::OperationModeX11);
+#ifdef KWIN_HAVE_OPENGLES
+    supportsGlx = false;
+#endif
+    if (supportsGlx) {
+        interfaces << QStringLiteral("glx");
+    }
+#ifdef KWIN_HAVE_EGL
+    interfaces << QStringLiteral("egl");
+#endif
+    return interfaces;
+}
+
 /*****************************************************
  * Workspace
  ****************************************************/
diff --git a/composite.h b/composite.h
index 7e18a660c0..a53cdd3629 100644
--- a/composite.h
+++ b/composite.h
@@ -79,6 +79,16 @@ class Compositor : public QObject {
      * @li @c gles OpenGL ES 2
      **/
     Q_PROPERTY(QString compositingType READ compositingType)
+    /**
+     * @brief All currently supported OpenGLPlatformInterfaces.
+     *
+     * Possible values:
+     * @li glx
+     * @li egl
+     *
+     * Values depend on operation mode and compile time options.
+     **/
+    Q_PROPERTY(QStringList supportedOpenGLPlatformInterfaces READ supportedOpenGLPlatformInterfaces)
 public:
     enum SuspendReason { NoReasonSuspend = 0, UserSuspend = 1<<0, BlockRuleSuspend = 1<<1, ScriptSuspend = 1<<2, AllReasonSuspend = 0xff };
     Q_DECLARE_FLAGS(SuspendReasons, SuspendReason)
@@ -158,6 +168,7 @@ public:
     QString compositingNotPossibleReason() const;
     bool isOpenGLBroken() const;
     QString compositingType() const;
+    QStringList supportedOpenGLPlatformInterfaces() const;
 
 public Q_SLOTS:
     void addRepaintFull();
diff --git a/org.kde.kwin.Compositing.xml b/org.kde.kwin.Compositing.xml
index ed83fd0289..4b657f0513 100644
--- a/org.kde.kwin.Compositing.xml
+++ b/org.kde.kwin.Compositing.xml
@@ -6,6 +6,7 @@
     <property name="compositingNotPossibleReason" type="s" access="read"/>
     <property name="openGLIsBroken" type="b" access="read"/>
     <property name="compositingType" type="s" access="read"/>
+    <property name="supportedOpenGLPlatformInterfaces" type="as" access="read"/>
     <signal name="compositingToggled">
       <arg name="active" type="b" direction="out"/>
     </signal>