kc3-lang/angle/util/EGLWindow.h

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• util/EGLWindow.h

• //
  // Copyright 2014 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.
  //
  
  #ifndef UTIL_EGLWINDOW_H_
  #define UTIL_EGLWINDOW_H_
  
  #include <stdint.h>
  #include <list>
  #include <memory>
  #include <string>
  
  #include "common/Optional.h"
  #include "common/angleutils.h"
  #include "util/EGLPlatformParameters.h"
  #include "util/util_export.h"
  #include "util/util_gl.h"
  
  class OSWindow;
  
  namespace angle
  {
  class Library;
  struct PlatformMethods;
  }  // namespace angle
  
  struct ANGLE_UTIL_EXPORT ConfigParameters
  {
      ConfigParameters();
      ~ConfigParameters();
  
      void reset();
  
      // Surface and Context parameters.
      int redBits;
      int greenBits;
      int blueBits;
      int alphaBits;
      int depthBits;
      int stencilBits;
  
      Optional<bool> webGLCompatibility;
      Optional<bool> robustResourceInit;
  
      // EGLWindow-specific.
      EGLenum componentType;
      bool multisample;
      bool debug;
      bool noError;
      Optional<bool> extensionsEnabled;
      bool bindGeneratesResource;
      bool clientArraysEnabled;
      bool robustAccess;
      EGLint samples;
      Optional<bool> contextProgramCacheEnabled;
      EGLenum resetStrategy;
  };
  
  class ANGLE_UTIL_EXPORT GLWindowBase : angle::NonCopyable
  {
    public:
      static void Delete(GLWindowBase **window);
  
      // It should also be possible to set multisample and floating point framebuffers.
      EGLint getClientMajorVersion() const { return mClientMajorVersion; }
      EGLint getClientMinorVersion() const { return mClientMinorVersion; }
  
      virtual bool initializeGL(OSWindow *osWindow,
                                angle::Library *glWindowingLibrary,
                                const EGLPlatformParameters &platformParams,
                                const ConfigParameters &configParams) = 0;
      virtual bool isGLInitialized() const                            = 0;
      virtual void swap()                                             = 0;
      virtual void destroyGL()                                        = 0;
      virtual bool makeCurrent()                                      = 0;
      virtual bool hasError() const                                   = 0;
      virtual bool setSwapInterval(EGLint swapInterval)               = 0;
  
      bool isMultisample() const { return mConfigParams.multisample; }
      bool isDebugEnabled() const { return mConfigParams.debug; }
  
      const angle::PlatformMethods *getPlatformMethods() const { return mPlatform.platformMethods; }
  
      const EGLPlatformParameters &getPlatform() const { return mPlatform; }
      const ConfigParameters &getConfigParams() const { return mConfigParams; }
  
    protected:
      GLWindowBase(EGLint glesMajorVersion, EGLint glesMinorVersion);
      virtual ~GLWindowBase();
  
      EGLint mClientMajorVersion;
      EGLint mClientMinorVersion;
      EGLPlatformParameters mPlatform;
      ConfigParameters mConfigParams;
  };
  
  class ANGLE_UTIL_EXPORT EGLWindow : public GLWindowBase
  {
    public:
      static EGLWindow *New(EGLint glesMajorVersion, EGLint glesMinorVersion);
      static void Delete(EGLWindow **window);
  
      static EGLBoolean FindEGLConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *config);
  
      EGLConfig getConfig() const;
      EGLDisplay getDisplay() const;
      EGLSurface getSurface() const;
      EGLContext getContext() const;
  
      // Internally initializes the Display, Surface and Context.
      bool initializeGL(OSWindow *osWindow,
                        angle::Library *glWindowingLibrary,
                        const EGLPlatformParameters &platformParams,
                        const ConfigParameters &configParams) override;
  
      bool isGLInitialized() const override;
      void swap() override;
      void destroyGL() override;
      bool makeCurrent() override;
      bool hasError() const override;
      bool setSwapInterval(EGLint swapInterval) override;
  
      // Only initializes the Display.
      bool initializeDisplay(OSWindow *osWindow,
                             angle::Library *glWindowingLibrary,
                             const EGLPlatformParameters &params);
  
      // Only initializes the Surface.
      bool initializeSurface(OSWindow *osWindow,
                             angle::Library *glWindowingLibrary,
                             const ConfigParameters &params);
  
      // Create an EGL context with this window's configuration
      EGLContext createContext(EGLContext share) const;
  
      // Only initializes the Context.
      bool initializeContext();
  
      void destroySurface();
      void destroyContext();
  
      bool isDisplayInitialized() const { return mDisplay != EGL_NO_DISPLAY; }
  
    private:
      EGLWindow(EGLint glesMajorVersion, EGLint glesMinorVersion);
  
      ~EGLWindow() override;
  
      EGLConfig mConfig;
      EGLDisplay mDisplay;
      EGLSurface mSurface;
      EGLContext mContext;
  
      EGLint mEGLMajorVersion;
      EGLint mEGLMinorVersion;
  };
  
  ANGLE_UTIL_EXPORT bool CheckExtensionExists(const char *allExtensions, const std::string &extName);
  
  #endif  // UTIL_EGLWINDOW_H_
  

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