kc3-lang/angle/src/libGLESv2/global_state.cpp

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• Hash : d73f852f
  Author :
  Date : 2017-01-13T17:48:57
  

  Reland "Replace gl::trace logging with Chromium style logging"
  
  Removing one usage of FormatString() and its static buffer.
  And preparation for Platform logging.
  
  Fix incorrect enabling of ERR() calls in UNIMPLEMENTED() and
  UNREACHABLE(), resulting in increased code size and
  <iostream> adding 5 static initializers to chrome because of
  cerr referenced in statically linked translator.
  
  BUG=angleproject:1660
  
  Change-Id: I7caa18036118d532e0544f75278602559172ae04
  Reviewed-on: https://chromium-review.googlesource.com/431457
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libGLESv2/global_state.cpp

• //
  // Copyright(c) 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.
  //
  
  // global_state.cpp : Implements functions for querying the thread-local GL and EGL state.
  
  #include "libGLESv2/global_state.h"
  
  #include "common/debug.h"
  #include "common/platform.h"
  #include "common/tls.h"
  
  #include "libANGLE/Thread.h"
  
  namespace gl
  {
  
  Context *GetGlobalContext()
  {
      egl::Thread *thread = egl::GetCurrentThread();
      return thread->getContext();
  }
  
  Context *GetValidGlobalContext()
  {
      egl::Thread *thread = egl::GetCurrentThread();
      return thread->getValidContext();
  }
  
  }  // namespace gl
  
  namespace egl
  {
  
  namespace
  {
  
  static TLSIndex threadTLS = TLS_INVALID_INDEX;
  
  Thread *AllocateCurrentThread()
  {
      ASSERT(threadTLS != TLS_INVALID_INDEX);
      if (threadTLS == TLS_INVALID_INDEX)
      {
          return nullptr;
      }
  
      Thread *thread = new Thread();
      if (!SetTLSValue(threadTLS, thread))
      {
          ERR() << "Could not set thread local storage.";
          return nullptr;
      }
  
      return thread;
  }
  
  }  // anonymous namespace
  
  Thread *GetCurrentThread()
  {
      // Create a TLS index if one has not been created for this DLL
      if (threadTLS == TLS_INVALID_INDEX)
      {
          threadTLS = CreateTLSIndex();
      }
  
      Thread *current = static_cast<Thread *>(GetTLSValue(threadTLS));
  
      // ANGLE issue 488: when the dll is loaded after thread initialization,
      // thread local storage (current) might not exist yet.
      return (current ? current : AllocateCurrentThread());
  }
  
  }  // namespace egl
  
  #ifdef ANGLE_PLATFORM_WINDOWS
  namespace egl
  {
  
  namespace
  {
  
  bool DeallocateCurrentThread()
  {
      Thread *thread = static_cast<Thread *>(GetTLSValue(threadTLS));
      SafeDelete(thread);
      return SetTLSValue(threadTLS, nullptr);
  }
  
  bool InitializeProcess()
  {
      threadTLS = CreateTLSIndex();
      if (threadTLS == TLS_INVALID_INDEX)
      {
          return false;
      }
  
      return AllocateCurrentThread() != nullptr;
  }
  
  bool TerminateProcess()
  {
      if (!DeallocateCurrentThread())
      {
          return false;
      }
  
      if (threadTLS != TLS_INVALID_INDEX)
      {
          TLSIndex tlsCopy = threadTLS;
          threadTLS        = TLS_INVALID_INDEX;
  
          if (!DestroyTLSIndex(tlsCopy))
          {
              return false;
          }
      }
  
      return true;
  }
  
  }  // anonymous namespace
  
  }  // namespace egl
  
  extern "C" BOOL WINAPI DllMain(HINSTANCE, DWORD reason, LPVOID)
  {
      switch (reason)
      {
          case DLL_PROCESS_ATTACH:
              return static_cast<BOOL>(egl::InitializeProcess());
  
          case DLL_THREAD_ATTACH:
              return static_cast<BOOL>(egl::AllocateCurrentThread() != nullptr);
  
          case DLL_THREAD_DETACH:
              return static_cast<BOOL>(egl::DeallocateCurrentThread());
  
          case DLL_PROCESS_DETACH:
              return static_cast<BOOL>(egl::TerminateProcess());
      }
  
      return TRUE;
  }
  #endif  // ANGLE_PLATFORM_WINDOWS
  

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