132 lines
3.7 KiB
C++
132 lines
3.7 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2013 Blender Foundation.
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* All rights reserved.
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*/
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/** \file
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* \ingroup GHOST
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*/
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#pragma once
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//#define WIN32_COMPOSITING
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#include "GHOST_Context.h"
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#include <GL/wglew.h>
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#ifndef GHOST_OPENGL_WGL_RESET_NOTIFICATION_STRATEGY
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# define GHOST_OPENGL_WGL_RESET_NOTIFICATION_STRATEGY 0
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#endif
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class GHOST_ContextWGL : public GHOST_Context {
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/* XR code needs low level graphics data to send to OpenXR. */
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friend class GHOST_XrGraphicsBindingOpenGL;
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public:
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/**
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* Constructor.
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*/
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GHOST_ContextWGL(bool stereoVisual,
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bool alphaBackground,
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HWND hWnd,
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HDC hDC,
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int contextProfileMask,
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int contextMajorVersion,
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int contextMinorVersion,
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int contextFlags,
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int contextResetNotificationStrategy);
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/**
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* Destructor.
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*/
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~GHOST_ContextWGL();
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/**
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* Swaps front and back buffers of a window.
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* \return A boolean success indicator.
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*/
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GHOST_TSuccess swapBuffers();
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/**
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* Activates the drawing context of this window.
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* \return A boolean success indicator.
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*/
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GHOST_TSuccess activateDrawingContext();
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/**
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* Release the drawing context of the calling thread.
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* \return A boolean success indicator.
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*/
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GHOST_TSuccess releaseDrawingContext();
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/**
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* Call immediately after new to initialize. If this fails then immediately delete the object.
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* \return Indication as to whether initialization has succeeded.
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*/
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GHOST_TSuccess initializeDrawingContext();
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/**
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* Removes references to native handles from this context and then returns
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* \return GHOST_kSuccess if it is OK for the parent to release the handles and
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* GHOST_kFailure if releasing the handles will interfere with sharing
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*/
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GHOST_TSuccess releaseNativeHandles();
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/**
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* Sets the swap interval for #swapBuffers.
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* \param interval: The swap interval to use.
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* \return A boolean success indicator.
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*/
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GHOST_TSuccess setSwapInterval(int interval);
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/**
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* Gets the current swap interval for #swapBuffers.
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* \param intervalOut: Variable to store the swap interval if it can be read.
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* \return Whether the swap interval can be read.
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*/
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GHOST_TSuccess getSwapInterval(int &intervalOut);
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private:
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int choose_pixel_format(bool stereoVisual, bool needAlpha);
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int choose_pixel_format_arb(bool stereoVisual, bool needAlpha);
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int _choose_pixel_format_arb_1(bool stereoVisual, bool needAlpha);
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void initContextWGLEW(PIXELFORMATDESCRIPTOR &preferredPFD);
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HWND m_hWnd;
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HDC m_hDC;
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const int m_contextProfileMask;
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const int m_contextMajorVersion;
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const int m_contextMinorVersion;
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const int m_contextFlags;
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const bool m_alphaBackground;
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const int m_contextResetNotificationStrategy;
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HGLRC m_hGLRC;
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#ifndef NDEBUG
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const char *m_dummyVendor;
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const char *m_dummyRenderer;
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const char *m_dummyVersion;
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#endif
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static HGLRC s_sharedHGLRC;
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static int s_sharedCount;
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};
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