184 lines
6.6 KiB
C++
184 lines
6.6 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2009 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#ifndef OSGVIEWER_GRAPHICSHANDLEWIN32
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#define OSGVIEWER_GRAPHICSHANDLEWIN32 1
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#include <osgViewer/Export>
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// Fallback if not correctly detected in CMake macro
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#ifndef _WIN32_WINNT
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//#define _WIN32_WINNT 0x0A00 // Windows 10
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//#define _WIN32_WINNT 0x0603 // Windows 8.1
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//#define _WIN32_WINNT 0x0602 // Windows 8
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//#define _WIN32_WINNT 0x0601 // Windows 7
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//#define _WIN32_WINNT 0x0600 // Windows Server 2008
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//#define _WIN32_WINNT 0x0600 // Windows Vista
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//#define _WIN32_WINNT 0x0502 // Windows Server 2003 with SP1, Windows XP with SP2
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//#define _WIN32_WINNT 0x0501 // Windows Server 2003, Windows XP
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#define _WIN32_WINNT 0x0500 // Windows NT
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#endif
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#include <windows.h>
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#if defined(OSG_USE_EGL)
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#include "EGL/egl.h"
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#endif
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namespace osgViewer
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{
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/** Class to encapsulate platform-specific OpenGL context handle variables.
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* Derived osg::GraphicsContext classes can inherit from this class to
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* share OpenGL resources.*/
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#if defined(OSG_USE_EGL)
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class OSGVIEWER_EXPORT GraphicsHandleWin32
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{
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public:
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struct EGLContextInfo {
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EGLContextInfo() { clear(); }
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EGLContextInfo(EGLContext _eglContext, EGLDisplay _eglDisplay, EGLSurface _eglSurface) : eglContext(_eglContext), eglDisplay(_eglDisplay), eglSurface(_eglSurface) {}
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EGLContextInfo(const EGLContextInfo& o) : eglContext(o.eglContext), eglDisplay(o.eglDisplay), eglSurface(o.eglSurface) {}
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EGLContextInfo& operator=(const EGLContextInfo& o) { eglContext = o.eglContext; eglDisplay = o.eglDisplay; eglSurface = o.eglSurface; return *this; }
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void clear() { eglContext = EGL_NO_CONTEXT; eglDisplay = EGL_NO_DISPLAY; eglSurface = EGL_NO_SURFACE; }
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bool isEmpty() { return eglContext == 0 && eglDisplay == 0; }
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EGLContext eglContext;
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EGLDisplay eglDisplay;
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EGLSurface eglSurface;
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};
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GraphicsHandleWin32()
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: _hwnd(0), _hdc(0) {}
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/** Set native window.*/
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inline void setHWND(HWND hwnd) { _hwnd = hwnd; }
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/** Get native window.*/
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inline HWND getHWND() const { return _hwnd; }
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/** Set device context.*/
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inline void setHDC(HDC hdc) { _hdc = hdc; }
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/** Get device context.*/
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inline HDC getHDC() const { return _hdc; }
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/** Set native EGL graphics context.*/
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inline void setEGLContext(const EGLContextInfo& eglContextInfo) { _eglContextInfo = eglContextInfo; }
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/** Get native EGL graphics context.*/
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inline const EGLContextInfo& getEGLContext() const { return _eglContextInfo; }
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protected:
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HWND _hwnd;
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HDC _hdc;
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EGLContextInfo _eglContextInfo;
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};
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#else
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class OSGVIEWER_EXPORT GraphicsHandleWin32
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{
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public:
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GraphicsHandleWin32() :
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_hwnd(0),
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_hdc(0),
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_hglrc(0) {}
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/** Set native window.*/
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inline void setHWND(HWND hwnd) { _hwnd = hwnd; }
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/** Get native window.*/
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inline HWND getHWND() const { return _hwnd; }
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/** Set device context.*/
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inline void setHDC(HDC hdc) { _hdc = hdc; }
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/** Get device context.*/
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inline HDC getHDC() const { return _hdc; }
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/** Set native OpenGL graphics context.*/
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inline void setWGLContext(HGLRC hglrc) { _hglrc = hglrc; }
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/** Get native OpenGL graphics context.*/
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inline HGLRC getWGLContext() const { return _hglrc; }
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protected:
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HWND _hwnd;
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HDC _hdc;
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HGLRC _hglrc;
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};
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#endif
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}
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// Definitions required to create an OpenGL pixel format, from the WGL_ARB_pixel_format specification document.
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// See http://www.opengl.org/registry/specs/ARB/wgl_pixel_format.txt
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#ifndef WGL_ARB_pixel_format
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#define WGL_ARB_pixel_format 1
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#define WGL_NUMBER_PIXEL_FORMATS_ARB 0x2000
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#define WGL_DRAW_TO_WINDOW_ARB 0x2001
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#define WGL_DRAW_TO_BITMAP_ARB 0x2002
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#define WGL_ACCELERATION_ARB 0x2003
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#define WGL_NEED_PALETTE_ARB 0x2004
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#define WGL_NEED_SYSTEM_PALETTE_ARB 0x2005
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#define WGL_SWAP_LAYER_BUFFERS_ARB 0x2006
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#define WGL_SWAP_METHOD_ARB 0x2007
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#define WGL_NUMBER_OVERLAYS_ARB 0x2008
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#define WGL_NUMBER_UNDERLAYS_ARB 0x2009
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#define WGL_TRANSPARENT_ARB 0x200A
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#define WGL_TRANSPARENT_RED_VALUE_ARB 0x2037
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#define WGL_TRANSPARENT_GREEN_VALUE_ARB 0x2038
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#define WGL_TRANSPARENT_BLUE_VALUE_ARB 0x2039
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#define WGL_TRANSPARENT_ALPHA_VALUE_ARB 0x203A
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#define WGL_TRANSPARENT_INDEX_VALUE_ARB 0x203B
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#define WGL_SHARE_DEPTH_ARB 0x200C
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#define WGL_SHARE_STENCIL_ARB 0x200D
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#define WGL_SHARE_ACCUM_ARB 0x200E
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#define WGL_SUPPORT_GDI_ARB 0x200F
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#define WGL_SUPPORT_OPENGL_ARB 0x2010
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#define WGL_DOUBLE_BUFFER_ARB 0x2011
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#define WGL_STEREO_ARB 0x2012
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#define WGL_PIXEL_TYPE_ARB 0x2013
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#define WGL_COLOR_BITS_ARB 0x2014
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#define WGL_RED_BITS_ARB 0x2015
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#define WGL_RED_SHIFT_ARB 0x2016
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#define WGL_GREEN_BITS_ARB 0x2017
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#define WGL_GREEN_SHIFT_ARB 0x2018
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#define WGL_BLUE_BITS_ARB 0x2019
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#define WGL_BLUE_SHIFT_ARB 0x201A
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#define WGL_ALPHA_BITS_ARB 0x201B
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#define WGL_ALPHA_SHIFT_ARB 0x201C
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#define WGL_ACCUM_BITS_ARB 0x201D
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#define WGL_ACCUM_RED_BITS_ARB 0x201E
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#define WGL_ACCUM_GREEN_BITS_ARB 0x201F
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#define WGL_ACCUM_BLUE_BITS_ARB 0x2020
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#define WGL_ACCUM_ALPHA_BITS_ARB 0x2021
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#define WGL_DEPTH_BITS_ARB 0x2022
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#define WGL_STENCIL_BITS_ARB 0x2023
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#define WGL_AUX_BUFFERS_ARB 0x2024
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#define WGL_NO_ACCELERATION_ARB 0x2025
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#define WGL_GENERIC_ACCELERATION_ARB 0x2026
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#define WGL_FULL_ACCELERATION_ARB 0x2027
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#define WGL_SWAP_EXCHANGE_ARB 0x2028
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#define WGL_SWAP_COPY_ARB 0x2029
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#define WGL_SWAP_UNDEFINED_ARB 0x202A
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#define WGL_TYPE_RGBA_ARB 0x202B
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#define WGL_TYPE_COLORINDEX_ARB 0x202C
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#define WGL_SAMPLE_BUFFERS_ARB 0x2041
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#define WGL_SAMPLES_ARB 0x2042
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#endif
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#endif
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