gecko/gfx/gl/WGLLibrary.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Bas Schouten <bschouten@mozilla.com>
* Vladimir Vukicevic <vladimir@pobox.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "GLContext.h"
namespace mozilla {
namespace gl {
class WGLLibrary
{
public:
WGLLibrary() : mInitialized(false), mOGLLibrary(nsnull),
mHasRobustness(false) {}
typedef HGLRC (GLAPIENTRY * PFNWGLCREATECONTEXTPROC) (HDC);
PFNWGLCREATECONTEXTPROC fCreateContext;
typedef BOOL (GLAPIENTRY * PFNWGLDELETECONTEXTPROC) (HGLRC);
PFNWGLDELETECONTEXTPROC fDeleteContext;
typedef BOOL (GLAPIENTRY * PFNWGLMAKECURRENTPROC) (HDC, HGLRC);
PFNWGLMAKECURRENTPROC fMakeCurrent;
typedef PROC (GLAPIENTRY * PFNWGLGETPROCADDRESSPROC) (LPCSTR);
PFNWGLGETPROCADDRESSPROC fGetProcAddress;
typedef HGLRC (GLAPIENTRY * PFNWGLGETCURRENTCONTEXT) (void);
PFNWGLGETCURRENTCONTEXT fGetCurrentContext;
typedef HDC (GLAPIENTRY * PFNWGLGETCURRENTDC) (void);
PFNWGLGETCURRENTDC fGetCurrentDC;
typedef BOOL (GLAPIENTRY * PFNWGLSHARELISTS) (HGLRC oldContext, HGLRC newContext);
PFNWGLSHARELISTS fShareLists;
typedef HANDLE (WINAPI * PFNWGLCREATEPBUFFERPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int* piAttribList);
PFNWGLCREATEPBUFFERPROC fCreatePbuffer;
typedef BOOL (WINAPI * PFNWGLDESTROYPBUFFERPROC) (HANDLE hPbuffer);
PFNWGLDESTROYPBUFFERPROC fDestroyPbuffer;
typedef HDC (WINAPI * PFNWGLGETPBUFFERDCPROC) (HANDLE hPbuffer);
PFNWGLGETPBUFFERDCPROC fGetPbufferDC;
typedef BOOL (WINAPI * PFNWGLBINDTEXIMAGEPROC) (HANDLE hPbuffer, int iBuffer);
PFNWGLBINDTEXIMAGEPROC fBindTexImage;
typedef BOOL (WINAPI * PFNWGLRELEASETEXIMAGEPROC) (HANDLE hPbuffer, int iBuffer);
PFNWGLRELEASETEXIMAGEPROC fReleaseTexImage;
typedef BOOL (WINAPI * PFNWGLCHOOSEPIXELFORMATPROC) (HDC hdc, const int* piAttribIList, const FLOAT *pfAttribFList, UINT nMaxFormats, int *piFormats, UINT *nNumFormats);
PFNWGLCHOOSEPIXELFORMATPROC fChoosePixelFormat;
typedef BOOL (WINAPI * PFNWGLGETPIXELFORMATATTRIBIVPROC) (HDC hdc, int iPixelFormat, int iLayerPlane, UINT nAttributes, int* piAttributes, int *piValues);
PFNWGLGETPIXELFORMATATTRIBIVPROC fGetPixelFormatAttribiv;
typedef const char * (WINAPI * PFNWGLGETEXTENSIONSSTRINGPROC) (HDC hdc);
PFNWGLGETEXTENSIONSSTRINGPROC fGetExtensionsString;
typedef HGLRC (WINAPI * PFNWGLCREATECONTEXTATTRIBSPROC) (HDC hdc, HGLRC hShareContext, const int *attribList);
PFNWGLCREATECONTEXTATTRIBSPROC fCreateContextAttribs;
bool EnsureInitialized();
bool HasRobustness() const { return mHasRobustness; }
private:
bool mInitialized;
PRLibrary *mOGLLibrary;
bool mHasRobustness;
};
// a global WGLLibrary instance
extern WGLLibrary sWGLLibrary;
} /* namespace gl */
} /* namespace mozilla */