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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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 QtOpenGL and QtOpenVG modules. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
QT_BEGIN_INCLUDE_NAMESPACE
#ifndef QT_NO_EGL
#if defined(QT_OPENGL_ES_2)
# include <GLES2/gl2.h>
#endif
#if defined(QT_GLES_EGL)
# include <GLES/egl.h>
#else
# include <EGL/egl.h>
#endif
#if !defined(EGL_VERSION_1_2)
typedef unsigned int EGLenum;
typedef void *EGLClientBuffer;
#endif
#else
//types from egltypes.h for compiling stub without EGL headers
typedef int EGLBoolean;
typedef int EGLint;
typedef int EGLenum;
typedef int NativeDisplayType;
typedef void* NativeWindowType;
typedef void* NativePixmapType;
typedef int EGLDisplay;
typedef int EGLConfig;
typedef int EGLSurface;
typedef int EGLContext;
typedef int EGLClientBuffer;
#define EGL_NONE 0x3038 /* Attrib list terminator */
#endif
#if defined(Q_WS_X11)
// If <EGL/egl.h> included <X11/Xlib.h>, then the global namespace
// may have been polluted with X #define's. The following makes sure
// the X11 headers were included properly and then cleans things up.
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#undef Bool
#undef Status
#undef None
#undef KeyPress
#undef KeyRelease
#undef FocusIn
#undef FocusOut
#undef Type
#undef FontChange
#undef CursorShape
#undef Unsorted
#undef GrayScale
#endif
// Internally we use the EGL-prefixed native types which are used in EGL >= 1.3.
// For older versions of EGL, we have to define these types ourselves here:
#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
#include <QtGui/qpaintdevice.h>
#include <QFlags>
QT_BEGIN_NAMESPACE
#define QEGL_NO_CONFIG ((EGLConfig)-1)
#ifndef EGLAPIENTRY
#define EGLAPIENTRY
#endif
// Try to get some info to debug the symbian build failues:
#ifdef Q_OS_SYMBIAN
#ifdef EGL_KHR_image
#warning "EGL_KHR_image is defined"
#else
#warning "EGL_KHR_image is NOT defined"
#endif
#ifdef EGL_KHR_image_base
#warning "EGL_KHR_image_base is defined"
#else
#warning "EGL_KHR_image_base is NOT defined"
#endif
#ifdef EGL_EGLEXT_PROTOTYPES
#warning "EGL_EGLEXT_PROTOTYPES is defined"
#else
#warning "EGL_EGLEXT_PROTOTYPES NOT not defined"
#endif
#endif
// Declare/define the bits of EGL_KHR_image_base we need:
#if !defined(EGL_KHR_image) && !defined(EGL_KHR_image_base)
#ifdef Q_OS_SYMBIAN
//symbian version of eglext.h differs from the khronos reference
typedef int EGLImageKHR;
#else
typedef void *EGLImageKHR;
#endif
#define EGL_NO_IMAGE_KHR ((EGLImageKHR)0)
#define EGL_IMAGE_PRESERVED_KHR 0x30D2
#define EGL_KHR_image_base
#endif
#if !defined(EGL_KHR_image) && !defined(EGL_KHR_image_pixmap)
#define EGL_NATIVE_PIXMAP_KHR 0x30B0
#define EGL_KHR_image_pixmap
#endif
class QEglProperties;
namespace QEgl {
enum API
{
OpenGL,
OpenVG
};
enum PixelFormatMatch
{
ExactPixelFormat,
BestPixelFormat
};
enum ConfigOption
{
NoOptions = 0,
Translucent = 0x01,
Renderable = 0x02 // Config will be compatable with the paint engines (VG or GL)
};
Q_DECLARE_FLAGS(ConfigOptions, ConfigOption)
// Most of the time we use the same config for things like widgets & pixmaps, so rather than
// go through the eglChooseConfig loop every time, we use defaultConfig, which will return
// the config for a particular device/api/option combo. This function assumes that once a
// config is chosen for a particular combo, it's safe to always use that combo.
Q_GUI_EXPORT EGLConfig defaultConfig(int devType, API api, ConfigOptions options);
Q_GUI_EXPORT EGLConfig chooseConfig(const QEglProperties* configAttribs, QEgl::PixelFormatMatch match = QEgl::ExactPixelFormat);
Q_GUI_EXPORT EGLSurface createSurface(QPaintDevice *device, EGLConfig cfg, const QEglProperties *surfaceAttribs = 0);
Q_GUI_EXPORT void dumpAllConfigs();
#ifdef QT_NO_EGL
Q_GUI_EXPORT QString errorString(EGLint code = 0);
#else
Q_GUI_EXPORT QString errorString(EGLint code = eglGetError());
#endif
Q_GUI_EXPORT QString extensions();
Q_GUI_EXPORT bool hasExtension(const char* extensionName);
Q_GUI_EXPORT EGLDisplay display();
Q_GUI_EXPORT EGLNativeDisplayType nativeDisplay();
Q_GUI_EXPORT EGLNativeWindowType nativeWindow(QWidget*);
Q_GUI_EXPORT EGLNativePixmapType nativePixmap(QPixmap*);
// Extension functions
Q_GUI_EXPORT EGLImageKHR eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list);
Q_GUI_EXPORT EGLBoolean eglDestroyImageKHR(EGLDisplay dpy, EGLImageKHR img);
Q_GUI_EXPORT EGLBoolean eglSwapBuffersRegion2NOK(EGLDisplay dpy, EGLSurface surface, EGLint count, const EGLint *rects);
#ifdef Q_WS_X11
Q_GUI_EXPORT VisualID getCompatibleVisualId(EGLConfig config);
#endif
}
Q_DECLARE_OPERATORS_FOR_FLAGS(QEgl::ConfigOptions)
QT_END_NAMESPACE
#endif //QEGL_P_H
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