kc3-lang/angle/util/system_utils.h

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• Hash : dd815b62
  Author :
  Date : 2018-12-15T10:39:00
  

  Load correct libGLESv2 on Linux and Mac.
  
  libEGL was implicitly loading libGLESv2 on startup. This is bad
  because on platforms like Linux and Mac we could sometimes use the
  incorrect rpath. This in turn meant we needed workarounds like using
  "_angle" extensions to our shared objects to get the correct loading
  behaviour.
  
  Fix this by loading libGLESv2 dynamically in libEGL. We build the
  loader automatically from egl.xml. The loader itself is lazily
  initialized on every EGL entry point call. This is necessary because
  on Linux, etc, there is no equivalent to Windows' DLLMain.
  
  We also use an EGL.h with different generation options so we have the
  proper function pointer types. A README is included for instructions
  on how to regenerate EGL.h.
  
  The entry point generation script is refactored into a helper class
  that is used in the loader generator. Also adds the libGLESv2 versions
  of the EGL entry points in the DEF file on Windows. This allows them to
  be imported properly in 32-bit configurations.
  
  Also fixes up some errors in ANGLE's entry point definitions. Also
  includes a clang-format disable rule for the Khronos headers.
  
  This CL will help us to run ANGLE tests against native drivers.
  
  Bug: angleproject:2871
  Change-Id: Id6ecf969308f17b1be4083538428c9c1a1836572
  Reviewed-on: https://chromium-review.googlesource.com/c/1370725
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• util/system_utils.h

• //
  // 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.
  //
  
  // system_utils.h: declaration of OS-specific utility functions
  
  #ifndef UTIL_SYSTEM_UTILS_H_
  #define UTIL_SYSTEM_UTILS_H_
  
  #include <string>
  
  #include <export.h>
  
  #include "common/angleutils.h"
  #include "common/system_utils.h"
  
  namespace angle
  {
  
  // Cross platform equivalent of the Windows Sleep function
  ANGLE_EXPORT void Sleep(unsigned int milliseconds);
  
  ANGLE_EXPORT void SetLowPriorityProcess();
  
  // Write a debug message, either to a standard output or Debug window.
  ANGLE_EXPORT void WriteDebugMessage(const char *format, ...);
  
  // Set thread affinity and priority.
  ANGLE_EXPORT bool StabilizeCPUForBenchmarking();
  }  // namespace angle
  
  #endif  // UTIL_SYSTEM_UTILS_H_
  

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