Bug 779726 - Move QGL includes into isolated wrapper class, and fix qgl.h and GLDefs.h conflicts. r=dougt

--HG--
extra : rebase_source : 02dee7a407a23efb7ce5a2caef0c61fbfb00a7c2

widget/qt/Makefile.in

@@ -54,6 +54,7 @@ CPPSRCS	+= \
 		nsPrintSettingsQt.cpp \
 		nsPrintDialogQt.cpp \
 		nsDeviceContextSpecQt.cpp \
+		mozqglwidgetwrapper.cpp \
 		$(NULL)
 
 EXPORTS		= \

widget/qt/faststartupqt/Makefile.in

@@ -21,10 +21,20 @@ EXTRA_DSO_LDOPTS = \
 	$(MOZ_QT_LIBS) \
 	$(NULL)
 
-LOCAL_INCLUDES += -I$(topsrcdir)/xpcom/build
+LOCAL_INCLUDES += \
+	-I$(topsrcdir)/xpcom/build \
+	-I$(topsrcdir)/widget/qt \
+	$(NULL)
 
-GARBAGE += moziqwidget.h nsQAppInstance.h nsQAppInstance.cpp
-export:: $(topsrcdir)/widget/qt/moziqwidget.h $(topsrcdir)/toolkit/xre/nsQAppInstance.h $(topsrcdir)/toolkit/xre/nsQAppInstance.cpp
+EXPORT_SOURCES = \
+	$(topsrcdir)/widget/qt/moziqwidget.h \
+	$(topsrcdir)/toolkit/xre/nsQAppInstance.h \
+	$(topsrcdir)/toolkit/xre/nsQAppInstance.cpp \
+	$(topsrcdir)/widget/qt/mozqglwidgetwrapper.h \
+	$(topsrcdir)/widget/qt/mozqglwidgetwrapper.cpp
+
+GARBAGE += $(EXPORT_SOURCES)
+export:: $(EXPORT_SOURCES)
 	$(INSTALL) $^ .
 
 MOCSRCS = \

widget/qt/moziqwidget.h

@@ -10,7 +10,7 @@
 #include <QApplication>
 #include <QGraphicsWidget>
 #include <QGraphicsView>
-#include <QtOpenGL/QGLWidget>
+#include "mozqglwidgetwrapper.h"
 
 #include "nsCOMPtr.h"
 
@@ -134,8 +134,8 @@ public:
     void setGLWidgetEnabled(bool aEnabled)
     {
         if (aEnabled) {
-            mGLWidget = new QGLWidget();
-            setViewport(mGLWidget);
+            mGLWidget = new MozQGLWidgetWrapper();
+            mGLWidget->setViewport(this);
         } else {
             delete mGLWidget;
             mGLWidget = 0;
@@ -174,7 +174,7 @@ protected:
 private:
     MozQGraphicsViewEvents mEventHandler;
     IMozQWidget* mTopLevelWidget;
-    QGLWidget* mGLWidget;
+    MozQGLWidgetWrapper* mGLWidget;
 };
 
 #ifdef MOZ_ENABLE_MEEGOTOUCH

widget/qt/mozqglwidgetwrapper.cpp

@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=4 et sw=4 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozqglwidgetwrapper.h"
+#include <QGraphicsView>
+#include <QtOpenGL/QGLWidget>
+#include <QtOpenGL/QGLContext>
+
+MozQGLWidgetWrapper::MozQGLWidgetWrapper()
+  : mWidget(new QGLWidget())
+{
+}
+
+MozQGLWidgetWrapper::~MozQGLWidgetWrapper()
+{
+    delete mWidget;
+}
+
+void MozQGLWidgetWrapper::makeCurrent()
+{
+    mWidget->makeCurrent();
+}
+
+void MozQGLWidgetWrapper::setViewport(QGraphicsView* aView)
+{
+    aView->setViewport(mWidget);
+}
+
+bool MozQGLWidgetWrapper::hasGLContext(QGraphicsView* aView)
+{
+    return aView && qobject_cast<QGLWidget*>(aView->viewport());
+}
+
+bool MozQGLWidgetWrapper::isRGBAContext()
+{
+    QGLContext* context = const_cast<QGLContext*>(QGLContext::currentContext());
+    return context && context->format().alpha();
+}

widget/qt/mozqglwidgetwrapper.h

@@ -0,0 +1,30 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* vim: set ts=4 et sw=4 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZQGLWIDGETWRAPPER_H
+#define MOZQGLWIDGETWRAPPER_H
+
+/*
+ * qgl.h and GLDefs.h has conflicts in type defines
+ * QGLWidget wrapper class helps to avoid including qgl.h with mozilla gl includes
+ */
+
+class QGLWidget;
+class QGraphicsView;
+class MozQGLWidgetWrapper
+{
+public:
+    MozQGLWidgetWrapper();
+    ~MozQGLWidgetWrapper();
+    void makeCurrent();
+    void setViewport(QGraphicsView*);
+    static bool hasGLContext(QGraphicsView*);
+    static bool isRGBAContext();
+private:
+    QGLWidget* mWidget;
+};
+
+#endif

widget/qt/nsWindow.cpp

@@ -6,12 +6,7 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "mozilla/Util.h"
-#include "BasicLayers.h"
 
-#include <QtOpenGL/QGLWidget>
-#include <QtOpenGL/QGLContext>
-// Solve conflict of qgl.h and GLDefs.h
-#define GLdouble_defined 1
 #include <QApplication>
 #include <QDesktopWidget>
 #include <QtGui/QCursor>
@@ -27,6 +22,7 @@
 #include <QStyleOptionGraphicsItem>
 #include <QPaintEngine>
 #include <QMimeData>
+#include "mozqglwidgetwrapper.h"
 
 #include <QtCore/QDebug>
 #include <QtCore/QEvent>
@@ -106,6 +102,7 @@ static Atom sPluginIMEAtom = nullptr;
 #endif //MOZ_X11
 
 #include "Layers.h"
+#include "BasicLayers.h"
 #include "LayerManagerOGL.h"
 #include "nsFastStartupQt.h"
 
@@ -2581,8 +2578,7 @@ nsPopupWindow::~nsPopupWindow()
 NS_IMETHODIMP_(bool)
 nsWindow::HasGLContext()
 {
-    QGraphicsView *view = qobject_cast<QGraphicsView*>(GetViewWidget());
-    return view && qobject_cast<QGLWidget*>(view->viewport());
+    return MozQGLWidgetWrapper::hasGLContext(qobject_cast<QGraphicsView*>(GetViewWidget()));
 }
 
 MozQWidget*
@@ -3272,12 +3268,7 @@ nsWindow::GetGLFrameBufferFormat()
 {
     if (mLayerManager &&
         mLayerManager->GetBackendType() == mozilla::layers::LAYERS_OPENGL) {
-        // On maemo the hardware fb has RGB format.
-#ifdef MOZ_PLATFORM_MAEMO
-        return LOCAL_GL_RGB;
-#else
-        return LOCAL_GL_RGBA;
-#endif
+        return MozQGLWidgetWrapper::isRGBAContext() ? LOCAL_GL_RGBA : LOCAL_GL_RGB;
     }
     return LOCAL_GL_NONE;
 }