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

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• Hash : 2cc2a727
  Author :
  Date : 2018-01-09T17:21:54
  

  common: Add aligned memory allocator.
  
  This will be useful for the Vulkan pipeline state cache. This cache
  wants to pack the pipeline description very carefully into a specific
  number of bits, using the "alignas" keyword. Using this keyword
  requires an aligned allocator, which we can lift from Chromium's
  base/memory submodule.
  
  Also includes a unittest copied from Chrome.
  
  Bug: angleproject:2163
  Change-Id: I25976be4610636db3f43552bba23d823f5a49a24
  Reviewed-on: https://chromium-review.googlesource.com/837944
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Reviewed-by: Frank Henigman <fjhenigman@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/common/aligned_memory_unittest.cpp

• //
  // Copyright 2017 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.
  //
  // aligned_memory_unittests: Tests for the aligned memory allocator.
  //   Tests copied from Chrome: src/base/memory/aligned_memory_unittests.cc.
  //
  
  #include "common/aligned_memory.h"
  
  #include <memory>
  
  #include "testing/gtest/include/gtest/gtest.h"
  
  #define EXPECT_ALIGNED(ptr, align) EXPECT_EQ(0u, reinterpret_cast<uintptr_t>(ptr) & (align - 1))
  
  namespace angle
  {
  
  // Test that dynamic allocation works as expected.
  TEST(AlignedMemoryTest, DynamicAllocation)
  {
      void *p = AlignedAlloc(8, 8);
      EXPECT_TRUE(p);
      EXPECT_ALIGNED(p, 8);
      AlignedFree(p);
  
      p = AlignedAlloc(8, 16);
      EXPECT_TRUE(p);
      EXPECT_ALIGNED(p, 16);
      AlignedFree(p);
  
      p = AlignedAlloc(8, 256);
      EXPECT_TRUE(p);
      EXPECT_ALIGNED(p, 256);
      AlignedFree(p);
  
      p = AlignedAlloc(8, 4096);
      EXPECT_TRUE(p);
      EXPECT_ALIGNED(p, 4096);
      AlignedFree(p);
  }
  
  }  // namespace base

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