kc3-lang/angle/src/compiler/preprocessor/Input.cpp

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• Hash : d64b3dab
  Author :
  Date : 2013-02-28T23:19:26
  

  Fixed 64-bit integer truncation issues in shader translator.
  
  This is an incompatible API change, but one which is necessary in
  order to improve correctness of the code. The API version in
  ShaderLang.h is updated and, unfortunately, the define renamed to
  something less ambiguous due to conflicts on some Android buildbots.
  Temporary patches in Chromium and WebKit will be landed separately to
  support this upgrade.
  
  BUG=403,404,405,406,407,408,409
  Review URL: https://codereview.appspot.com/7300058
  
  
  Conflicts:
  	include/GLSLANG/ShaderLang.h
  
  git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1960 736b8ea6-26fd-11df-bfd4-992fa37f6226
  

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• src/compiler/preprocessor/Input.cpp

• //
  // Copyright (c) 2011 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.
  //
  
  #include "Input.h"
  
  #include <algorithm>
  #include <cassert>
  #include <cstring>
  
  namespace pp
  {
  
  Input::Input() : mCount(0), mString(0)
  {
  }
  
  Input::Input(size_t count, const char* const string[], const int length[]) :
      mCount(count),
      mString(string)
  {
      mLength.reserve(mCount);
      for (size_t i = 0; i < mCount; ++i)
      {
          int len = length ? length[i] : -1;
          mLength.push_back(len < 0 ? std::strlen(mString[i]) : len);
      }
  }
  
  size_t Input::read(char* buf, size_t maxSize)
  {
      size_t nRead = 0;
      while ((nRead < maxSize) && (mReadLoc.sIndex < mCount))
      {
          size_t size = mLength[mReadLoc.sIndex] - mReadLoc.cIndex;
          size = std::min(size, maxSize);
          std::memcpy(buf + nRead, mString[mReadLoc.sIndex] + mReadLoc.cIndex, size);
          nRead += size;
          mReadLoc.cIndex += size;
  
          // Advance string if we reached the end of current string.
          if (mReadLoc.cIndex == mLength[mReadLoc.sIndex])
          {
              ++mReadLoc.sIndex;
              mReadLoc.cIndex = 0;
          }
      }
      return nRead;
  }
  
  }  // namespace pp
  
  

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