kc3-lang/angle/util/windows/WGLWindow.h

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• Author : Jamie Madill
  Date : 2019-01-03 15:24:22
  Hash : 1f56ed2a
  Message : Add WGLWindow and WGL test configs. WGLWindow lets us use a Windows driver's bindings instead of ANGLE. This only works if the underlying driver supports OpenGL ES compatibility. Also adds the WGL headers, WGL XML, and a specialized WGL loader. Because of a small driver issue with NVIDIA I added a retry for the WGL Window initialization. Bug: angleproject:2995 Change-Id: Ie5148ece470dd03df33015f4919ad1fa79a859ec Reviewed-on: https://chromium-review.googlesource.com/c/1366021 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>

• util/windows/WGLWindow.h

• //
  // Copyright 2018 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // WGLWindow:
  //   Implements initializing a WGL rendering context.
  //
  
  #ifndef UTIL_WINDOWS_WGLWINDOW_H_
  #define UTIL_WINDOWS_WGLWINDOW_H_
  
  #include "common/angleutils.h"
  #include "export.h"
  #include "util/EGLWindow.h"
  
  class OSWindow;
  
  namespace angle
  {
  class Library;
  }  // namespace angle
  
  class ANGLE_UTIL_EXPORT WGLWindow : public GLWindowBase
  {
    public:
      static WGLWindow *New(int glesMajorVersion, int glesMinorVersion);
      static void Delete(WGLWindow **window);
  
      // Internally initializes GL resources.
      bool initializeGL(OSWindow *osWindow, angle::Library *glWindowingLibrary) override;
      void destroyGL() override;
      bool isGLInitialized() const override;
  
      void makeCurrent() override;
      void swap() override;
      bool hasError() const override;
  
    private:
      WGLWindow(int glesMajorVersion, int glesMinorVersion);
      ~WGLWindow() override;
  
      // OS resources.
      HDC mDeviceContext;
      HGLRC mWGLContext;
      HWND mWindow;
  };
  
  #endif  // UTIL_WINDOWS_WGLWINDOW_H_