2019-09-19 23:43:31 +08:00
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#ifndef _OSGVIEWER_WIN32GWUTILS_H_
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#define _OSGVIEWER_WIN32GWUTILS_H_
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2019-09-17 17:50:42 +08:00
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#if defined(OSG_USE_EGL)
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#include <EGL/egl.h>
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#define EGL_EGLEXT_PROTOTYPES
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#include <EGL/eglext.h>
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#endif
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2019-09-19 23:43:31 +08:00
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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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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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2019-09-17 17:50:42 +08:00
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#include <osg/GraphicsContext>
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namespace osgViewer {
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template <typename T> class XGLAttributes
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{
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public:
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XGLAttributes() {}
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~XGLAttributes() {}
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void begin() { m_parameters.clear(); }
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void set(const T& id, const T& value) { add(id); add(value); }
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void enable(const T& id) { add(id); add(true); }
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void disable(const T& id) { add(id); add(false); }
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#if defined(OSG_USE_EGL)
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void end() { add(EGL_NONE); }
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#else
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void end() { add(0); }
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#endif
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const T* get() const { return &m_parameters.front(); }
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protected:
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void add(const T& t) { m_parameters.push_back(t); }
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std::vector<T> m_parameters; // parameters added
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private:
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// No implementation for these
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XGLAttributes(const XGLAttributes&);
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XGLAttributes& operator=(const XGLAttributes&);
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};
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typedef XGLAttributes<int> XGLIntegerAttributes;
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typedef XGLAttributes<float> XGLFloatAttributes;
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void reportError(const std::string& msg);
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void reportError(const std::string& msg, unsigned int errorCode);
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void reportErrorForScreen(const std::string& msg, const osg::GraphicsContext::ScreenIdentifier& si, unsigned int errorCode);
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#if defined(OSG_USE_EGL)
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namespace EGL {
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struct ContextInfo {
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ContextInfo();
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ContextInfo(EGLContext _eglContext, EGLDisplay _eglDisplay, EGLSurface _eglSurface);
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ContextInfo(const ContextInfo& o);
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ContextInfo& operator=(const ContextInfo& o);
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void clear();
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bool isEmpty();
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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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// A class representing an OpenGL rendering context
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class OpenGLContext
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{
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public:
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OpenGLContext();
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OpenGLContext(HWND hwnd, HDC hdc, EGLContext eglContext, EGLDisplay eglDisplay, EGLSurface eglSurface);
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~OpenGLContext();
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void set(HWND hwnd, HDC hdc, EGLContext eglContext, EGLDisplay eglDisplay, EGLSurface eglSurface, EGLConfig eglConfig);
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void clear();
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HDC deviceContext();
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EGLConfig getConfig();
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bool makeCurrent(HDC restoreOnHdc, bool restorePreviousOnExit);
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ContextInfo& contextInfo();
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protected:
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EGL::ContextInfo _eglCtx;
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EGLConfig _eglConfig;
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HDC _previousHdc; // previously HDC to restore rendering context on
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EGLContext _previousContext; // previously current rendering context
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HWND _hwnd; // handle to OpenGL window
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HDC _hdc; // handle to device context
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private:
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// no implementation for these
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OpenGLContext(const OpenGLContext&);
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OpenGLContext& operator=(const OpenGLContext&);
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};
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bool createDisplaySurfaceAndContext(ContextInfo& context, EGLConfig& config, XGLAttributes<int>& configAttribs, HWND hwnd, HDC hdc);
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bool createDisplaySurfaceAndContextForPBuffer(ContextInfo& context, EGLConfig& config, XGLAttributes<int>& configAttribs);
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EGLContext createContext(EGLDisplay eglDisplay, const EGLConfig& config);
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void destroyContext(ContextInfo& c);
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void preparePixelFormatSpecifications(const osg::GraphicsContext::Traits& traits, XGLIntegerAttributes& attributes, bool allowSwapExchangeARB);
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} // end of namespace EGL
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#else
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namespace WGL {
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class OpenGLContext
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{
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public:
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OpenGLContext();
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OpenGLContext(HWND hwnd, HDC hdc, HGLRC hglrc);
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~OpenGLContext();
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void set(HWND hwnd, HDC hdc, HGLRC hglrc);
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void clear();
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HDC deviceContext();
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bool makeCurrent(HDC restoreOnHdc, bool restorePreviousOnExit);
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protected:
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//
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// Data members
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//
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HDC _previousHdc; // previously HDC to restore rendering context on
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HGLRC _previousHglrc; // previously current rendering context
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HWND _hwnd; // handle to OpenGL window
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HDC _hdc; // handle to device context
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HGLRC _hglrc; // handle to OpenGL rendering context
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bool _restorePreviousOnExit; // restore original context on exit
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private:
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// no implementation for these
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OpenGLContext(const OpenGLContext&);
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OpenGLContext& operator=(const OpenGLContext&);
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};
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} // end of namespace WGL
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#endif
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}
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2019-09-19 23:43:31 +08:00
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#if !defined(OSG_USE_EGL)
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//
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// Defines 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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//
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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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#ifndef WGL_ARB_render_texture
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#define WGL_ARB_render_texture 1
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#define WGL_BIND_TO_TEXTURE_RGB_ARB 0x2070
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#define WGL_BIND_TO_TEXTURE_RGBA_ARB 0x2071
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#define WGL_TEXTURE_FORMAT_ARB 0x2072
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#define WGL_TEXTURE_TARGET_ARB 0x2073
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#define WGL_MIPMAP_TEXTURE_ARB 0x2074
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#define WGL_TEXTURE_RGB_ARB 0x2075
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#define WGL_TEXTURE_RGBA_ARB 0x2076
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#define WGL_NO_TEXTURE_ARB 0x2077
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#define WGL_TEXTURE_CUBE_MAP_ARB 0x2078
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#define WGL_TEXTURE_1D_ARB 0x2079
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#define WGL_TEXTURE_2D_ARB 0x207A
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#define WGL_MIPMAP_LEVEL_ARB 0x207B
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#define WGL_CUBE_MAP_FACE_ARB 0x207C
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#define WGL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB 0x207D
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#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB 0x207E
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#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB 0x207F
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#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB 0x2080
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#define WGL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB 0x2081
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#define WGL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB 0x2082
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#define WGL_FRONT_LEFT_ARB 0x2083
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#define WGL_FRONT_RIGHT_ARB 0x2084
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#define WGL_BACK_LEFT_ARB 0x2085
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#define WGL_BACK_RIGHT_ARB 0x2086
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#define WGL_AUX0_ARB 0x2087
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#define WGL_AUX1_ARB 0x2088
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#define WGL_AUX2_ARB 0x2089
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#define WGL_AUX3_ARB 0x208A
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#define WGL_AUX4_ARB 0x208B
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#define WGL_AUX5_ARB 0x208C
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#define WGL_AUX6_ARB 0x208D
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#define WGL_AUX7_ARB 0x208E
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#define WGL_AUX8_ARB 0x208F
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#define WGL_AUX9_ARB 0x2090
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#endif
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#ifndef WGL_NV_render_depth_texture
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#define WGL_NV_render_depth_texture 1
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#define WGL_BIND_TO_TEXTURE_DEPTH_NV 0x20A3
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#define WGL_BIND_TO_TEXTURE_RECTANGLE_DEPTH_NV 0x20A4
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#define WGL_DEPTH_TEXTURE_FORMAT_NV 0x20A5
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#define WGL_TEXTURE_DEPTH_COMPONENT_NV 0x20A6
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#define WGL_DEPTH_COMPONENT_NV 0x20A7
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#endif
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#ifndef WGL_NV_render_texture_rectangle
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#define WGL_NV_render_texture_rectangle 1
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#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV 0x20A0
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#define WGL_BIND_TO_TEXTURE_RECTANGLE_RGBA_NV 0x20A1
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#define WGL_TEXTURE_RECTANGLE_NV 0x20A2
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#endif
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#ifndef WGL_SAMPLE_BUFFERS_ARB
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#define WGL_SAMPLE_BUFFERS_ARB 0x2041
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#endif
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#ifndef WGL_SAMPLES_ARB
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#define WGL_SAMPLES_ARB 0x2042
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#endif
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#ifndef WGL_ARB_create_context
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#define WGL_CONTEXT_DEBUG_BIT_ARB 0x00000001
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#define WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x00000002
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#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
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#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
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#define WGL_CONTEXT_LAYER_PLANE_ARB 0x2093
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#define WGL_CONTEXT_FLAGS_ARB 0x2094
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#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126
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#define ERROR_INVALID_VERSION_ARB 0x2095
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#endif
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#ifndef WGL_ARB_pbuffer
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#define WGL_ARB_pbuffer 1
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DECLARE_HANDLE(HPBUFFERARB);
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#define WGL_DRAW_TO_PBUFFER_ARB 0x202D
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#define WGL_MAX_PBUFFER_PIXELS_ARB 0x202E
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#define WGL_MAX_PBUFFER_WIDTH_ARB 0x202F
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#define WGL_MAX_PBUFFER_HEIGHT_ARB 0x2030
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#define WGL_PBUFFER_LARGEST_ARB 0x2033
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#define WGL_PBUFFER_WIDTH_ARB 0x2034
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#define WGL_PBUFFER_HEIGHT_ARB 0x2035
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#define WGL_PBUFFER_LOST_ARB 0x2036
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#endif
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#ifndef WGL_ARB_create_context
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#define WGL_ARB_create_context 1
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#ifdef WGL_WGLEXT_PROTOTYPES
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extern HGLRC WINAPI wglCreateContextAttribsARB(HDC, HGLRC, const int *);
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#endif /* WGL_WGLEXT_PROTOTYPES */
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typedef HGLRC(WINAPI * PFNWGLCREATECONTEXTATTRIBSARBPROC) (HDC hDC, HGLRC hShareContext, const int *attribList);
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#endif
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//
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// Entry points used from the WGL extensions
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//
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// BOOL wglChoosePixelFormatARB(HDC hdc,
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// const int *piAttribIList,
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// const FLOAT *pfAttribFList,
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// UINT nMaxFormats,
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// int *piFormats,
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// UINT *nNumFormats);
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//
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typedef bool (WINAPI * WGLChoosePixelFormatARB) (HDC, const int *, const float *, unsigned int, int *, unsigned int *);
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#endif
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2019-09-17 17:50:42 +08:00
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#endif
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