kc3-lang/angle/src/common/angleutils.cpp

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• Hash : 25390156
  Author :
  Date : 2025-08-21T00:13:19
  

  Suppress unsafe buffers on a file-by-file basis in src/ [1 of N]
  
  In this CL, we suppress many files but stop short of actually
  enabling the warning by not removing the line from the
  unsafe_buffers_paths.txt file. That will happen in a follow-on
  CL, along with resolving any stragglers missed here.
  
  This is mostly a manual change so as to familiarize myself with
  the kinds of issues faced by the Angle codebase when applying buffer
  safety warnings.
  
  -- Re-generate affected hashes.
  -- Clang-format applied to all changed files.
  -- Add a few missing .reserve() calls to vectors as noticed.
  -- Fix some mismatches between file names and header comments.
  -- Be more consistent with header comment format (blank lines and
     trailing //-only lines when a filename comment adjoins license
     boilerplate).
  
  Bug: b/436880895
  Change-Id: I3bde5cc2059acbe8345057289214f1a26f1c34aa
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6869022
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/common/angleutils.cpp

• //
  // Copyright 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.
  //
  
  #ifdef UNSAFE_BUFFERS_BUILD
  #    pragma allow_unsafe_libc_calls
  #endif
  
  #include "common/angleutils.h"
  #include "common/debug.h"
  
  #include <stdio.h>
  
  #include <limits>
  #include <vector>
  
  namespace angle
  {
  // dirtyPointer is a special value that will make the comparison with any valid pointer fail and
  // force the renderer to re-apply the state.
  const uintptr_t DirtyPointer = std::numeric_limits<uintptr_t>::max();
  
  // AMD_performance_monitor helpers.
  
  PerfMonitorCounter::PerfMonitorCounter() = default;
  
  PerfMonitorCounter::~PerfMonitorCounter() = default;
  
  PerfMonitorCounterGroup::PerfMonitorCounterGroup() = default;
  
  PerfMonitorCounterGroup::~PerfMonitorCounterGroup() = default;
  
  uint32_t GetPerfMonitorCounterIndex(const PerfMonitorCounters &counters, const std::string &name)
  {
      for (uint32_t counterIndex = 0; counterIndex < static_cast<uint32_t>(counters.size());
           ++counterIndex)
      {
          if (counters[counterIndex].name == name)
          {
              return counterIndex;
          }
      }
  
      return std::numeric_limits<uint32_t>::max();
  }
  
  uint32_t GetPerfMonitorCounterGroupIndex(const PerfMonitorCounterGroups &groups,
                                           const std::string &name)
  {
      for (uint32_t groupIndex = 0; groupIndex < static_cast<uint32_t>(groups.size()); ++groupIndex)
      {
          if (groups[groupIndex].name == name)
          {
              return groupIndex;
          }
      }
  
      return std::numeric_limits<uint32_t>::max();
  }
  
  const PerfMonitorCounter &GetPerfMonitorCounter(const PerfMonitorCounters &counters,
                                                  const std::string &name)
  {
      return GetPerfMonitorCounter(const_cast<PerfMonitorCounters &>(counters), name);
  }
  
  PerfMonitorCounter &GetPerfMonitorCounter(PerfMonitorCounters &counters, const std::string &name)
  {
      uint32_t counterIndex = GetPerfMonitorCounterIndex(counters, name);
      ASSERT(counterIndex < static_cast<uint32_t>(counters.size()));
      return counters[counterIndex];
  }
  
  const PerfMonitorCounterGroup &GetPerfMonitorCounterGroup(const PerfMonitorCounterGroups &groups,
                                                            const std::string &name)
  {
      return GetPerfMonitorCounterGroup(const_cast<PerfMonitorCounterGroups &>(groups), name);
  }
  
  PerfMonitorCounterGroup &GetPerfMonitorCounterGroup(PerfMonitorCounterGroups &groups,
                                                      const std::string &name)
  {
      uint32_t groupIndex = GetPerfMonitorCounterGroupIndex(groups, name);
      ASSERT(groupIndex < static_cast<uint32_t>(groups.size()));
      return groups[groupIndex];
  }
  }  // namespace angle
  
  std::string ArrayString(unsigned int i)
  {
      // We assume that UINT_MAX and GL_INVALID_INDEX are equal.
      ASSERT(i != UINT_MAX);
  
      std::stringstream strstr;
      strstr << "[";
      strstr << i;
      strstr << "]";
      return strstr.str();
  }
  
  std::string ArrayIndexString(const std::vector<unsigned int> &indices)
  {
      std::stringstream strstr;
  
      for (auto indicesIt = indices.rbegin(); indicesIt != indices.rend(); ++indicesIt)
      {
          // We assume that UINT_MAX and GL_INVALID_INDEX are equal.
          ASSERT(*indicesIt != UINT_MAX);
          strstr << "[";
          strstr << (*indicesIt);
          strstr << "]";
      }
  
      return strstr.str();
  }
  
  size_t FormatStringIntoVector(const char *fmt, va_list vararg, std::vector<char> &outBuffer)
  {
      va_list varargCopy;
      va_copy(varargCopy, vararg);
  
      int len = vsnprintf(nullptr, 0, fmt, vararg);
      ASSERT(len >= 0);
  
      outBuffer.resize(len + 1, 0);
  
      len = vsnprintf(outBuffer.data(), outBuffer.size(), fmt, varargCopy);
      va_end(varargCopy);
      ASSERT(len >= 0);
      return static_cast<size_t>(len);
  }
  
  const char *MakeStaticString(const std::string &str)
  {
      // On the heap so that no destructor runs on application exit.
      static std::set<std::string> *strings = new std::set<std::string>;
      std::set<std::string>::iterator it    = strings->find(str);
      if (it != strings->end())
      {
          return it->c_str();
      }
  
      return strings->insert(str).first->c_str();
  }
  

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