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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QEGL_P_H
+#define QEGL_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists for the convenience
+// of the QGLWidget class. This header file may change from
+// version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "QtCore/qvarlengtharray.h"
+#include "QtCore/qsize.h"
+#include "QtGui/qimage.h"
+
+#if defined(QT_OPENGL_ES) || defined(QT_OPENVG)
+
+QT_BEGIN_INCLUDE_NAMESPACE
+#if defined(QT_OPENGL_ES_2) || defined(QT_OPENVG)
+#include <EGL/egl.h>
+#else
+#include <GLES/egl.h>
+#endif
+#if !defined(EGL_VERSION_1_3) && !defined(QEGL_NATIVE_TYPES_DEFINED)
+#undef EGLNativeWindowType
+#undef EGLNativePixmapType
+#undef EGLNativeDisplayType
+typedef NativeWindowType EGLNativeWindowType;
+typedef NativePixmapType EGLNativePixmapType;
+typedef NativeDisplayType EGLNativeDisplayType;
+#define QEGL_NATIVE_TYPES_DEFINED 1
+#endif
+QT_END_INCLUDE_NAMESPACE
+
+class QX11Info;
+class QPaintDevice;
+class QImage;
+class QPixmap;
+class QWidget;
+
+QT_BEGIN_NAMESPACE
+
+class Q_OPENGL_EXPORT QEglProperties
+{
+public:
+ QEglProperties();
+ QEglProperties(const QEglProperties& other) : props(other.props) {}
+ ~QEglProperties() {}
+
+ int value(int name) const;
+ void setValue(int name, int value);
+ bool removeValue(int name);
+
+ const int *properties() const { return props.constData(); }
+
+ void setPixelFormat(QImage::Format pixelFormat);
+#ifdef Q_WS_X11
+ void setVisualFormat(const QX11Info *xinfo);
+#endif
+ void setRenderableType(int api);
+
+ bool reduceConfiguration();
+
+ QString toString() const;
+
+private:
+ QVarLengthArray<int> props;
+};
+
+class Q_OPENGL_EXPORT QEglContext
+{
+public:
+ QEglContext();
+ ~QEglContext();
+
+ enum API
+ {
+ OpenGL,
+ OpenVG
+ };
+
+ enum PixelFormatMatch
+ {
+ ExactPixelFormat,
+ BestPixelFormat
+ };
+
+ bool isValid() const;
+ bool isSharing() const;
+
+ void setApi(QEglContext::API api) { apiType = api; }
+ bool openDisplay(QPaintDevice *device);
+ bool chooseConfig(const QEglProperties& properties, PixelFormatMatch match = ExactPixelFormat);
+ bool createContext(QEglContext *shareContext = 0);
+ bool createSurface(QPaintDevice *device);
+ bool recreateSurface(QPaintDevice *device);
+ void setSurface(EGLSurface surface) { surf = surface; }
+
+ void destroy();
+
+ bool makeCurrent();
+ bool doneCurrent();
+ bool swapBuffers();
+
+ void waitNative();
+ void waitClient();
+
+ QSize surfaceSize() const;
+
+ bool configAttrib(int name, EGLint *value) const;
+
+ void clearError() const { eglGetError(); }
+
+ QEglContext::API api() const { return apiType; }
+
+ EGLDisplay display() const { return dpy; }
+ EGLContext context() const { return ctx; }
+ EGLSurface surface() const { return surf; }
+ EGLConfig config() const { return cfg; }
+
+ QEglProperties configProperties(EGLConfig cfg = 0) const;
+
+ static EGLDisplay defaultDisplay(QPaintDevice *device);
+ static QString errorString(int code);
+
+ void dumpAllConfigs();
+
+private:
+ QEglContext::API apiType;
+ EGLDisplay dpy;
+ EGLContext ctx;
+ EGLSurface surf;
+ EGLConfig cfg;
+ bool share;
+ void *reserved; // For extension data in future versions.
+
+ static EGLDisplay getDisplay(QPaintDevice *device);
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_OPENGL_ES || QT_OPENVG
+
+#endif // QEGL_P_H