GHOST_ContextEGL.hh

Go to the documentation of this file.

/* SPDX-FileCopyrightText: 2013 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#ifndef WITH_OPENGL_BACKEND
#  error "ContextEGL requires WITH_OPENGL_BACKEND"
#endif
 
#include "GHOST_Context.hh"
#include "GHOST_System.hh"
 
#include <epoxy/egl.h>
#include <epoxy/gl.h>
 
#ifndef GHOST_OPENGL_EGL_CONTEXT_FLAGS
#  define GHOST_OPENGL_EGL_CONTEXT_FLAGS 0
#endif
 
#ifndef GHOST_OPENGL_EGL_RESET_NOTIFICATION_STRATEGY
#  define GHOST_OPENGL_EGL_RESET_NOTIFICATION_STRATEGY 0
#endif
 
class GHOST_ContextEGL : public GHOST_Context {
  /* XR code needs low level graphics data to send to OpenXR. */
  friend class GHOST_XrGraphicsBindingOpenGL;
 
 public:
  GHOST_ContextEGL(const GHOST_System *const system,
                   bool stereoVisual,
                   EGLNativeWindowType nativeWindow,
                   EGLNativeDisplayType nativeDisplay,
                   EGLint contextProfileMask,
                   EGLint contextMajorVersion,
                   EGLint contextMinorVersion,
                   EGLint contextFlags,
                   EGLint contextResetNotificationStrategy,
                   EGLenum api);
 
  ~GHOST_ContextEGL() override;
 
  GHOST_TSuccess swapBuffers() override;
 
  GHOST_TSuccess activateDrawingContext() override;
 
  GHOST_TSuccess releaseDrawingContext() override;
 
  GHOST_TSuccess initializeDrawingContext() override;
 
  GHOST_TSuccess releaseNativeHandles() override;
 
  GHOST_TSuccess setSwapInterval(int interval) override;
 
  GHOST_TSuccess getSwapInterval(int &intervalOut) override;
 
  EGLDisplay getDisplay() const;
 
  EGLConfig getConfig() const;
 
  EGLContext getContext() const;
 
 private:
  bool bindAPI(EGLenum api);
 
  const GHOST_System *const m_system;
 
  EGLNativeDisplayType m_nativeDisplay;
  EGLNativeWindowType m_nativeWindow;
 
  const EGLint m_contextProfileMask;
  const EGLint m_contextMajorVersion;
  const EGLint m_contextMinorVersion;
  const EGLint m_contextFlags;
  const EGLint m_contextResetNotificationStrategy;
 
  const EGLenum m_api;
 
  EGLContext m_context;
  EGLSurface m_surface;
  EGLDisplay m_display;
  EGLConfig m_config;
 
  EGLint m_swap_interval;
 
  EGLContext &m_sharedContext;
  EGLint &m_sharedCount;
 
  bool m_surface_from_native_window;
 
  static EGLContext s_gl_sharedContext;
  static EGLint s_gl_sharedCount;
 
  static EGLContext s_gles_sharedContext;
  static EGLint s_gles_sharedCount;
 
  static EGLContext s_vg_sharedContext;
  static EGLint s_vg_sharedCount;
};