gpu/command_buffer/service/shader_translator_cache_unittest.cc

   1 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <GLES2/gl2.h>
   6
   7 #include "gpu/command_buffer/service/shader_translator_cache.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace gpu {
  11 namespace gles2 {
  12
  13 TEST(ShaderTranslatorCacheTest, InitParamComparable) {
  14   // Tests that ShaderTranslatorInitParams padding or padding of its
  15   // members does not affect the object equality or ordering.
  16
  17   ShBuiltInResources a_resources;
  18   memset(&a_resources, 88, sizeof(a_resources));
  19   ShInitBuiltInResources(&a_resources);
  20
  21   ShBuiltInResources b_resources;
  22   memset(&b_resources, 77, sizeof(b_resources));
  23   ShInitBuiltInResources(&b_resources);
  24
  25   EXPECT_TRUE(memcmp(&a_resources, &b_resources, sizeof(a_resources)) == 0);
  26
  27   ShCompileOptions driver_bug_workarounds = SH_VALIDATE;
  28
  29   char a_storage[sizeof(ShaderTranslatorCache::ShaderTranslatorInitParams)];
  30   memset(a_storage, 55, sizeof(a_storage));
  31   ShaderTranslatorCache::ShaderTranslatorInitParams* a =
  32       new (&a_storage) ShaderTranslatorCache::ShaderTranslatorInitParams(
  33           GL_VERTEX_SHADER, SH_GLES2_SPEC, a_resources, SH_ESSL_OUTPUT,
  34           driver_bug_workarounds);
  35
  36   ShaderTranslatorCache::ShaderTranslatorInitParams b(
  37       GL_VERTEX_SHADER, SH_GLES2_SPEC, b_resources, SH_ESSL_OUTPUT,
  38       driver_bug_workarounds);
  39
  40   EXPECT_TRUE(*a == b);
  41   EXPECT_FALSE(*a < b || b < *a);
  42
  43   memset(a_storage, 55, sizeof(a_storage));
  44   a = new (&a_storage) ShaderTranslatorCache::ShaderTranslatorInitParams(b);
  45
  46   EXPECT_TRUE(*a == b);
  47   EXPECT_FALSE(*a < b || b < *a);
  48 }
  49 }  // namespace gles2
  50 }  // namespace gpu