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****************************************************************************/

#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 QtOpenGL and QtOpenVG modules.  This header file may change from

// version to version without notice, or even be removed.

//

// We mean it.

//

#include <QtCore/qsize.h>

#include <QtGui/qimage.h>

#include <private/qeglproperties_p.h>

QT_BEGIN_INCLUDE_NAMESPACE

#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

QT_BEGIN_NAMESPACE

class Q_GUI_EXPORT QEglContext

{

public:

    QEglContext();

    ~QEglContext();

    bool isValid() const;

    bool isCurrent() const;

    bool isSharing() const { return sharing; }

    QEgl::API api() const { return apiType; }

    void setApi(QEgl::API api) { apiType = api; }

    bool chooseConfig(const QEglProperties& properties, QEgl::PixelFormatMatch match = QEgl::ExactPixelFormat);

    bool createContext(QEglContext *shareContext = 0, const QEglProperties *properties = 0);

    void destroyContext();

    EGLSurface createSurface(QPaintDevice *device, const QEglProperties *properties = 0);

    void destroySurface(EGLSurface surface);

    bool makeCurrent(EGLSurface surface);

    bool doneCurrent();

    bool lazyDoneCurrent();

    bool swapBuffers(EGLSurface surface);

    void waitNative();

    void waitClient();

    bool configAttrib(int name, EGLint *value) const;

    static void clearError() { eglGetError(); }

    static EGLint error() { return eglGetError(); }

    static QString errorString(EGLint code);

    static EGLDisplay display();

    EGLContext context() const { return ctx; }

    void setContext(EGLContext context) { ctx = context; ownsContext = false;}

    EGLConfig config() const { return cfg; }

    void setConfig(EGLConfig config) { cfg = config; }

    QEglProperties configProperties(EGLConfig cfg = 0) const;

    void dumpAllConfigs();

    static QString extensions();

    static bool hasExtension(const char* extensionName);

private:

    QEgl::API apiType;

    EGLContext ctx;

    EGLConfig cfg;

    EGLSurface currentSurface;

    bool current;

    bool ownsContext;

    bool sharing;

    static EGLDisplay dpy;

    static EGLNativeDisplayType nativeDisplay();

    static QEglContext *currentContext(QEgl::API api);

    static void setCurrentContext(QEgl::API api, QEglContext *context);

};

QT_END_NAMESPACE

#endif // QEGL_P_H