kc3-lang/angle/src/libANGLE/Thread.cpp

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• Hash : 12efe5b2
  Author :
  Date : 2022-06-21T15:43:42
  

  Cleanup invalid EGL handles only if app called eglTermiate
  
  Maintain set of active threads instead of a global refCount
  and free display's invalid EGL resources iff -
  1. app previously called eglTerminate on that display
  2. there are no more active threads associated with that display
  
  Bug: angleproject:6723
  Test: EGLMultiContextTest.RepeatedEglInitAndTerminate*
  Test: EGLMultiContextTest.ReuseUnterminatedDisplay*
  Change-Id: I868491bbbf0664e9129dcb0d1fa9e2243ef36d82
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3717277
  Commit-Queue: mohan maiya <m.maiya@samsung.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Roman Lavrov <romanl@google.com>
  

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• src/libANGLE/Thread.cpp

• //
  // Copyright 2016 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.
  //
  
  // Thread.cpp : Defines the Thread class which represents a global EGL thread.
  
  #include "libANGLE/Thread.h"
  
  #include "libANGLE/Context.h"
  #include "libANGLE/Debug.h"
  #include "libANGLE/Display.h"
  #include "libANGLE/Error.h"
  
  namespace angle
  {
  bool gUseAndroidOpenGLTlsSlot;
  
  void PthreadKeyDestructorCallback(void *ptr)
  {
      egl::Thread *thread = static_cast<egl::Thread *>(ptr);
      ASSERT(thread);
  
      egl::Display::EglDisplaySet displays = egl::Display::GetEglDisplaySet();
      for (egl::Display *display : displays)
      {
          ASSERT(display);
          // Remove the thread being destroyed from display's active thread set
          // and perform any necessary cleanup.
          display->removeActiveThreadAndPerformCleanup(thread);
      }
  }
  }  // namespace angle
  
  namespace egl
  {
  namespace
  {
  Debug *sDebug = nullptr;
  }  // namespace
  
  Thread::Thread()
      : mLabel(nullptr),
        mError(EGL_SUCCESS),
        mAPI(EGL_OPENGL_ES_API),
        mContext(static_cast<gl::Context *>(EGL_NO_CONTEXT))
  {}
  
  void Thread::setLabel(EGLLabelKHR label)
  {
      mLabel = label;
  }
  
  EGLLabelKHR Thread::getLabel() const
  {
      return mLabel;
  }
  
  void Thread::setSuccess()
  {
      mError = EGL_SUCCESS;
  }
  
  void Thread::setError(EGLint error,
                        const char *command,
                        const LabeledObject *object,
                        const char *message)
  {
      mError = error;
      if (error != EGL_SUCCESS && message)
      {
          EnsureDebugAllocated();
          sDebug->insertMessage(error, command, ErrorCodeToMessageType(error), getLabel(),
                                object ? object->getLabel() : nullptr, message);
      }
  }
  
  void Thread::setError(const Error &error, const char *command, const LabeledObject *object)
  {
      mError = error.getCode();
      if (error.isError() && !error.getMessage().empty())
      {
          EnsureDebugAllocated();
          sDebug->insertMessage(error.getCode(), command, ErrorCodeToMessageType(error.getCode()),
                                getLabel(), object ? object->getLabel() : nullptr,
                                error.getMessage());
      }
  }
  
  EGLint Thread::getError() const
  {
      return mError;
  }
  
  void Thread::setAPI(EGLenum api)
  {
      mAPI = api;
  }
  
  EGLenum Thread::getAPI() const
  {
      return mAPI;
  }
  
  void Thread::setCurrent(gl::Context *context)
  {
      mContext = context;
      if (mContext)
      {
          ASSERT(mContext->getDisplay());
          mContext->getDisplay()->addActiveThread(this);
      }
  }
  
  Surface *Thread::getCurrentDrawSurface() const
  {
      if (mContext)
      {
          return mContext->getCurrentDrawSurface();
      }
      return nullptr;
  }
  
  Surface *Thread::getCurrentReadSurface() const
  {
      if (mContext)
      {
          return mContext->getCurrentReadSurface();
      }
      return nullptr;
  }
  
  gl::Context *Thread::getContext() const
  {
      return mContext;
  }
  
  Display *Thread::getDisplay() const
  {
      if (mContext)
      {
          return mContext->getDisplay();
      }
      return nullptr;
  }
  
  void EnsureDebugAllocated()
  {
      // All EGL calls use a global lock, this is thread safe
      if (sDebug == nullptr)
      {
          sDebug = new Debug();
      }
  }
  
  void DeallocateDebug()
  {
      SafeDelete(sDebug);
  }
  
  Debug *GetDebug()
  {
      EnsureDebugAllocated();
      return sDebug;
  }
  }  // namespace egl
  

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