Extend eglhooks to include hasCapability

Add BufferQueueingOpenGL to Raspberry PI's numerous capabilities

Change-Id: I1197c28a0c82df3ae2f6d5360791010e17373555
Reviewed-by: Girish Ramakrishnan <girish.1.ramakrishnan@nokia.com>
Reviewed-by: Donald Carr <donald.carr@nokia.com>
Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>

mkspecs/devices/linux-arm-amlogic-8726M-g++/qeglfs_hooks_8726m.cpp

@@ -92,4 +92,9 @@ void QEglFSHooks::destroyNativeWindow(EGLNativeWindowType window)
     delete window;
 }
 
+bool QEglFSHooks::hasCapability(QPlatformIntegration::Capability cap) const
+{
+    return false;
+}
+
 QEglFSHooks platform_hooks;

mkspecs/devices/linux-rasp-pi-g++/qeglfs_hooks.cpp

@@ -140,4 +140,17 @@ void QEglFSHooks::destroyNativeWindow(EGLNativeWindowType window)
     delete eglWindow;
 }
 
+bool QEglFSHooks::hasCapability(QPlatformIntegration::Capability cap) const
+{
+    switch (cap) {
+        case QPlatformIntegration::ThreadedPixmaps:
+        case QPlatformIntegration::OpenGL:
+        case QPlatformIntegration::ThreadedOpenGL:
+        case QPlatformIntegration::BufferQueueingOpenGL:
+            return true;
+        default:
+            return false;
+    }
+}
+
 QEglFSHooks platform_hooks;

src/plugins/platforms/eglfs/qeglfs_hooks.h

@@ -54,8 +54,16 @@ struct QEglFSHooks {
     QSize screenSize() const;
     EGLNativeWindowType createNativeWindow(const QSize &size);
     void destroyNativeWindow(EGLNativeWindowType window);
+    bool hasCapability(QPlatformIntegration::Capability cap) const;
 };
 
+#ifdef EGLFS_PLATFORM_HOOKS
+extern QEglFSHooks platform_hooks;
+static QEglFSHooks *hooks = &platform_hooks;
+#else
+static QEglFSHooks *hooks = 0;
+#endif
+
 QT_END_NAMESPACE
 
 #endif

src/plugins/platforms/eglfs/qeglfs_hooks_x11.cpp

@@ -88,3 +88,8 @@ void QEglFSHooks::destroyNativeWindow(EGLNativeWindowType window)
     XDestroyWindow(display, window);
 }
 
+bool QEglFSHooks::hasCapability(QPlatformIntegration::Capability cap) const
+{
+    return false;
+}
+

src/plugins/platforms/eglfs/qeglfsintegration.cpp

@@ -74,6 +74,10 @@ QEglFSIntegration::~QEglFSIntegration()
 
 bool QEglFSIntegration::hasCapability(QPlatformIntegration::Capability cap) const
 {
+    // We assume that devices will have more and not less capabilities
+    if (hooks && hooks->hasCapability(cap))
+        return true;
+
     switch (cap) {
     case ThreadedPixmaps: return true;
     case OpenGL: return true;

src/plugins/platforms/eglfs/qeglfsscreen.cpp

@@ -53,13 +53,6 @@
 
 QT_BEGIN_NAMESPACE
 
-#ifdef EGLFS_PLATFORM_HOOKS
-extern QEglFSHooks platform_hooks;
-static QEglFSHooks *hooks = &platform_hooks;
-#else
-static QEglFSHooks *hooks = 0;
-#endif
-
 // #define QEGL_EXTRA_DEBUG
 
 #ifdef QEGL_EXTRA_DEBUG