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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QGLPIXELBUFFER_P_H
#define QGLPIXELBUFFER_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 QLibrary class. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
QT_BEGIN_NAMESPACE
QT_BEGIN_INCLUDE_NAMESPACE
#include "QtOpenGL/qglpixelbuffer.h"
#include <private/qgl_p.h>
#include <private/qglpaintdevice_p.h>
#if defined(Q_WS_X11) && defined(QT_NO_EGL)
#include <GL/glx.h>
// The below is needed to for compilation on HPUX, due to broken GLX
// headers. Some of the systems define GLX_VERSION_1_3 without
// defining the GLXFBConfig structure, which is wrong.
#if defined (Q_OS_HPUX) && defined(QT_DEFINE_GLXFBCONFIG_STRUCT)
typedef unsigned long GLXPbuffer;
struct GLXFBConfig {
int visualType;
int transparentType;
/* colors are floats scaled to ints */
int transparentRed, transparentGreen, transparentBlue, transparentAlpha;
int transparentIndex;
int visualCaveat;
int associatedVisualId;
int screen;
int drawableType;
int renderType;
int maxPbufferWidth, maxPbufferHeight, maxPbufferPixels;
int optimalPbufferWidth, optimalPbufferHeight; /* for SGIX_pbuffer */
int visualSelectGroup; /* visuals grouped by select priority */
unsigned int id;
GLboolean rgbMode;
GLboolean colorIndexMode;
GLboolean doubleBufferMode;
GLboolean stereoMode;
GLboolean haveAccumBuffer;
GLboolean haveDepthBuffer;
GLboolean haveStencilBuffer;
/* The number of bits present in various buffers */
GLint accumRedBits, accumGreenBits, accumBlueBits, accumAlphaBits;
GLint depthBits;
GLint stencilBits;
GLint indexBits;
GLint redBits, greenBits, blueBits, alphaBits;
GLuint redMask, greenMask, blueMask, alphaMask;
GLuint multiSampleSize; /* Number of samples per pixel (0 if no ms) */
GLuint nMultiSampleBuffers; /* Number of available ms buffers */
GLint maxAuxBuffers;
/* frame buffer level */
GLint level;
/* color ranges (for SGI_color_range) */
GLboolean extendedRange;
GLdouble minRed, maxRed;
GLdouble minGreen, maxGreen;
GLdouble minBlue, maxBlue;
GLdouble minAlpha, maxAlpha;
};
#endif // Q_OS_HPUX
#elif defined(Q_WS_WIN)
DECLARE_HANDLE(HPBUFFERARB);
#elif !defined(QT_NO_EGL)
#include <QtGui/private/qegl_p.h>
#endif
QT_END_INCLUDE_NAMESPACE
class QEglContext;
class QGLPBufferGLPaintDevice : public QGLPaintDevice
{
public:
virtual QPaintEngine* paintEngine() const {return pbuf->paintEngine();}
virtual QSize size() const {return pbuf->size();}
virtual QGLContext* context() const;
virtual void endPaint();
void setPBuffer(QGLPixelBuffer* pb);
private:
QGLPixelBuffer* pbuf;
};
class QGLPixelBufferPrivate {
Q_DECLARE_PUBLIC(QGLPixelBuffer)
public:
QGLPixelBufferPrivate(QGLPixelBuffer *q) : q_ptr(q), invalid(true), qctx(0), pbuf(0), ctx(0)
{
#ifdef Q_WS_WIN
dc = 0;
#elif defined(Q_WS_MACX)
share_ctx = 0;
#endif
}
bool init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
void common_init(const QSize &size, const QGLFormat &f, QGLWidget *shareWidget);
bool cleanup();
QGLPixelBuffer *q_ptr;
bool invalid;
QGLContext *qctx;
QGLPBufferGLPaintDevice glDevice;
QGLFormat format;
QGLFormat req_format;
QPointer<QGLWidget> req_shareWidget;
QSize req_size;
#if defined(Q_WS_X11) && defined(QT_NO_EGL)
GLXPbuffer pbuf;
GLXContext ctx;
#elif defined(Q_WS_WIN)
HDC dc;
bool has_render_texture :1;
#if !defined(QT_OPENGL_ES)
HPBUFFERARB pbuf;
HGLRC ctx;
#endif
#elif defined(Q_WS_MACX)
# ifdef QT_MAC_USE_COCOA
void *pbuf;
void *ctx;
void *share_ctx;
# else
AGLPbuffer pbuf;
AGLContext ctx;
AGLContext share_ctx;
# endif
#endif
#ifndef QT_NO_EGL
EGLSurface pbuf;
QEglContext *ctx;
int textureFormat;
#elif defined(Q_WS_QPA)
//stubs
void *pbuf;
void *ctx;
#endif
};
QT_END_NAMESPACE
#endif // QGLPIXELBUFFER_P_H
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