kc3-lang/angle/src/libEGL/main.cpp

Branch : - branch - main - tag -

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• Author : Geoff Lang
  Date : 2013-10-07 17:06:30
  Hash : f5713124
  Message : Rework tracing and perf defines. Changed ANGLE_DISABLE_* to ANGLE_ENABLE_* for perf and tracing defines so they are disabled by default. Updated the gyp files to only turn on perf by default for windows debug builds. Change-Id: I71706674e6d12fbf4208acc8f100d963b82c7674 Reviewed-on: https://chromium-review.googlesource.com/183250 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shannon Woods <shannonwoods@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• src/libEGL/main.cpp

• //
  // Copyright (c) 2002-2012 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.
  //
  
  // main.cpp: DLL entry point and management of thread-local data.
  
  #include "libEGL/main.h"
  
  #include "common/debug.h"
  
  static DWORD currentTLS = TLS_OUT_OF_INDEXES;
  
  namespace egl
  {
  
  Current *AllocateCurrent()
  {
      Current *current = (egl::Current*)LocalAlloc(LPTR, sizeof(egl::Current));
  
      if (!current)
      {
          ERR("Could not allocate thread local storage.");
          return NULL;
      }
  
      ASSERT(currentTLS != TLS_OUT_OF_INDEXES);
      TlsSetValue(currentTLS, current);
  
      current->error = EGL_SUCCESS;
      current->API = EGL_OPENGL_ES_API;
      current->display = EGL_NO_DISPLAY;
      current->drawSurface = EGL_NO_SURFACE;
      current->readSurface = EGL_NO_SURFACE;
  
      return current;
  }
  
  void DeallocateCurrent()
  {
      void *current = TlsGetValue(currentTLS);
  
      if (current)
      {
          LocalFree((HLOCAL)current);
      }
  }
  
  }
  
  extern "C" BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
  {
      switch (reason)
      {
        case DLL_PROCESS_ATTACH:
          {
  #if defined(ANGLE_ENABLE_TRACE)
              FILE *debug = fopen(TRACE_OUTPUT_FILE, "rt");
  
              if (debug)
              {
                  fclose(debug);
                  debug = fopen(TRACE_OUTPUT_FILE, "wt");   // Erase
                  
                  if (debug)
                  {
                      fclose(debug);
                  }
              }
  #endif
  
              currentTLS = TlsAlloc();
  
              if (currentTLS == TLS_OUT_OF_INDEXES)
              {
                  return FALSE;
              }
          }
          // Fall throught to initialize index
        case DLL_THREAD_ATTACH:
          {
              egl::AllocateCurrent();
          }
          break;
        case DLL_THREAD_DETACH:
          {
              egl::DeallocateCurrent();
          }
          break;
        case DLL_PROCESS_DETACH:
          {
              egl::DeallocateCurrent();
              TlsFree(currentTLS);
          }
          break;
        default:
          break;
      }
  
      return TRUE;
  }
  
  namespace egl
  {
  
  Current *GetCurrentData()
  {
      Current *current = (Current*)TlsGetValue(currentTLS);
  
      // ANGLE issue 488: when the dll is loaded after thread initialization,
      // thread local storage (current) might not exist yet.
      return (current ? current : AllocateCurrent());
  }
  
  void setCurrentError(EGLint error)
  {
      Current *current = GetCurrentData();
  
      current->error = error;
  }
  
  EGLint getCurrentError()
  {
      Current *current = GetCurrentData();
  
      return current->error;
  }
  
  void setCurrentAPI(EGLenum API)
  {
      Current *current = GetCurrentData();
  
      current->API = API;
  }
  
  EGLenum getCurrentAPI()
  {
      Current *current = GetCurrentData();
  
      return current->API;
  }
  
  void setCurrentDisplay(EGLDisplay dpy)
  {
      Current *current = GetCurrentData();
  
      current->display = dpy;
  }
  
  EGLDisplay getCurrentDisplay()
  {
      Current *current = GetCurrentData();
  
      return current->display;
  }
  
  void setCurrentDrawSurface(EGLSurface surface)
  {
      Current *current = GetCurrentData();
  
      current->drawSurface = surface;
  }
  
  EGLSurface getCurrentDrawSurface()
  {
      Current *current = GetCurrentData();
  
      return current->drawSurface;
  }
  
  void setCurrentReadSurface(EGLSurface surface)
  {
      Current *current = GetCurrentData();
  
      current->readSurface = surface;
  }
  
  EGLSurface getCurrentReadSurface()
  {
      Current *current = GetCurrentData();
  
      return current->readSurface;
  }
  
  void error(EGLint errorCode)
  {
      egl::setCurrentError(errorCode);
  }
  
  }