112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
/* SPDX-FileCopyrightText: 2013 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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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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#include "GHOST_Context.hh"
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#include <epoxy/wgl.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(const GHOST_ContextParams &context_params,
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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() override;
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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() override;
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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() override;
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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() override;
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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() override;
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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() override;
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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) override;
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/**
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* Gets the current swap interval for #swapBuffers.
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* \param interval_out: 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 &interval_out) override;
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private:
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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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HWND h_wnd_;
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HDC h_DC_;
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const int context_profile_mask_;
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const int context_major_version_;
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const int context_minor_version_;
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const int context_flags_;
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const bool alpha_background_;
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const int context_reset_notification_strategy_;
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HGLRC h_GLRC_;
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#ifndef NDEBUG
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const char *dummy_vendor_;
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const char *dummy_renderer_;
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const char *dummy_version_;
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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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