kc3-lang/angle/src/libANGLE/renderer/gl/egl/FunctionsEGLDL.cpp

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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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• src/libANGLE/renderer/gl/egl/FunctionsEGLDL.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.
  //
  
  // FunctionsEGLDL.cpp: Implements the FunctionsEGLDL class.
  
  #include "libANGLE/renderer/gl/egl/FunctionsEGLDL.h"
  
  #include <dlfcn.h>
  
  namespace rx
  {
  namespace
  {
  // In ideal world, we would want this to be a member of FunctionsEGLDL,
  // and call dlclose() on it in ~FunctionsEGLDL().
  // However, some GL implementations are broken and don't allow multiple
  // load/unload cycles, but only static linking with them.
  // That's why we dlopen() this handle once and never dlclose() it.
  // This is consistent with Chromium's CleanupNativeLibraries() code,
  // referencing crbug.com/250813 and http://www.xfree86.org/4.3.0/DRI11.html
  void *nativeEGLHandle;
  }  // anonymous namespace
  
  FunctionsEGLDL::FunctionsEGLDL() : mGetProcAddressPtr(nullptr) {}
  
  FunctionsEGLDL::~FunctionsEGLDL() {}
  
  egl::Error FunctionsEGLDL::initialize(EGLNativeDisplayType nativeDisplay,
                                        const char *libName,
                                        void *eglHandle)
  {
  
      if (eglHandle)
      {
          // If the handle is provided, use it.
          // Caller has already dlopened the vendor library.
          nativeEGLHandle = eglHandle;
      }
  
      if (!nativeEGLHandle)
      {
          nativeEGLHandle = dlopen(libName, RTLD_NOW);
          if (!nativeEGLHandle)
          {
              return egl::EglNotInitialized() << "Could not dlopen native EGL: " << dlerror();
          }
      }
  
      mGetProcAddressPtr =
          reinterpret_cast<PFNEGLGETPROCADDRESSPROC>(dlsym(nativeEGLHandle, "eglGetProcAddress"));
      if (!mGetProcAddressPtr)
      {
          return egl::EglNotInitialized() << "Could not find eglGetProcAddress";
      }
  
      return FunctionsEGL::initialize(nativeDisplay);
  }
  
  void *FunctionsEGLDL::getProcAddress(const char *name) const
  {
      void *f = reinterpret_cast<void *>(mGetProcAddressPtr(name));
      if (f)
      {
          return f;
      }
      return dlsym(nativeEGLHandle, name);
  }
  
  }  // namespace rx
  

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