source: trunk/src/opengl/qglpixelbuffer_win.cpp@ 345

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information ([email protected])
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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 [email protected].
** $QT_END_LICENSE$
**
****************************************************************************/

#include <qglpixelbuffer.h>
#include <qgl.h>
#include <private/qgl_p.h>

#include <private/qglpixelbuffer_p.h>

#include <qimage.h>
#include <qdebug.h>

QT_BEGIN_NAMESPACE

/* WGL_WGLEXT_PROTOTYPES */
typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
typedef HPBUFFERARB (WINAPI * PFNWGLCREATEPBUFFERARBPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
typedef HDC (WINAPI * PFNWGLGETPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer);
typedef int (WINAPI * PFNWGLRELEASEPBUFFERDCARBPROC) (HPBUFFERARB hPbuffer, HDC hDC);
typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFERARBPROC) (HPBUFFERARB hPbuffer);
typedef BOOL (WINAPI * PFNWGLQUERYPBUFFERARBPROC) (HPBUFFERARB hPbuffer, int iAttribute, int *piValue);
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, int *piValues);
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBFVARBPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, const int *piAttributes, FLOAT *pfValues);
typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATARBPROC) (HDC hdc, const int *piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
typedef BOOL (WINAPI * PFNWGLBINDTEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
typedef BOOL (WINAPI * PFNWGLRELEASETEXIMAGEARBPROC) (HPBUFFERARB hPbuffer, int iBuffer);
typedef BOOL (WINAPI * PFNWGLSETPBUFFERATTRIBARBPROC) (HPBUFFERARB hPbuffer, const int * piAttribList);

#ifndef WGL_ARB_pbuffer
#define WGL_DRAW_TO_PBUFFER_ARB        0x202D
#define WGL_MAX_PBUFFER_PIXELS_ARB     0x202E
#define WGL_MAX_PBUFFER_WIDTH_ARB      0x202F
#define WGL_MAX_PBUFFER_HEIGHT_ARB     0x2030
#define WGL_PBUFFER_LARGEST_ARB        0x2033
#define WGL_PBUFFER_WIDTH_ARB          0x2034
#define WGL_PBUFFER_HEIGHT_ARB         0x2035
#define WGL_PBUFFER_LOST_ARB           0x2036
#endif

#ifndef WGL_ARB_pixel_format
#define WGL_NUMBER_PIXEL_FORMATS_ARB   0x2000
#define WGL_DRAW_TO_WINDOW_ARB         0x2001