kc3-lang/angle/src/tests/compiler_tests/AppendixALimitations_test.cpp

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• Author : Stuart Morgan
  Date : 2019-08-14 12:25:12
  Hash : 9d737966
  Message : Standardize copyright notices to project style For all "ANGLE Project" copyrights, standardize to the format specified by the style guide. Changes: - "Copyright (c)" and "Copyright(c)" changed to just "Copyright". - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1"). - Fixed a small number of files that had no copyright date using the initial commit year from the version control history. - Fixed one instance of copyright being "The ANGLE Project" rather than "The ANGLE Project Authors" These changes are applied both to the copyright of source file, and where applicable to copyright statements that are generated by templates. BUG=angleproject:3811 Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• src/tests/compiler_tests/AppendixALimitations_test.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.
  //
  // AppendixALimitations_test.cpp:
  //   Tests for validating ESSL 1.00 Appendix A limitations.
  //
  
  #include "gtest/gtest.h"
  
  #include "GLSLANG/ShaderLang.h"
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "tests/test_utils/ShaderCompileTreeTest.h"
  
  using namespace sh;
  
  class AppendixALimitationsTest : public ShaderCompileTreeTest
  {
    public:
      AppendixALimitationsTest() {}
  
    protected:
      ::GLenum getShaderType() const override { return GL_FRAGMENT_SHADER; }
      ShShaderSpec getShaderSpec() const override { return SH_WEBGL_SPEC; }
  };
  
  // Test an invalid shader where a for loop index is used as an out parameter.
  TEST_F(AppendixALimitationsTest, IndexAsFunctionOutParameter)
  {
      const std::string &shaderString =
          "precision mediump float;\n"
          "void fun(out int a)\n"
          "{\n"
          "   a = 2;\n"
          "}\n"
          "void main()\n"
          "{\n"
          "    for (int i = 0; i < 2; ++i)\n"
          "    {\n"
          "        fun(i);\n"
          "    }\n"
          "    gl_FragColor = vec4(0.0);\n"
          "}\n";
      if (compile(shaderString))
      {
          FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog;
      }
  }
  
  // Test an invalid shader where a for loop index is used as an inout parameter.
  TEST_F(AppendixALimitationsTest, IndexAsFunctionInOutParameter)
  {
      const std::string &shaderString =
          "precision mediump float;\n"
          "void fun(int b, inout int a)\n"
          "{\n"
          "   a += b;\n"
          "}\n"
          "void main()\n"
          "{\n"
          "    for (int i = 0; i < 2; ++i)\n"
          "    {\n"
          "        fun(2, i);\n"
          "    }\n"
          "    gl_FragColor = vec4(0.0);\n"
          "}\n";
      if (compile(shaderString))
      {
          FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog;
      }
  }
  
  // Test a valid shader where a for loop index is used as an in parameter in a function that also has
  // an out parameter.
  TEST_F(AppendixALimitationsTest, IndexAsFunctionInParameter)
  {
      const std::string &shaderString =
          "precision mediump float;\n"
          "void fun(int b, inout int a)\n"
          "{\n"
          "   a += b;\n"
          "}\n"
          "void main()\n"
          "{\n"
          "    for (int i = 0; i < 2; ++i)\n"
          "    {\n"
          "        int a = 1;"
          "        fun(i, a);\n"
          "    }\n"
          "    gl_FragColor = vec4(0.0);\n"
          "}\n";
      if (!compile(shaderString))
      {
          FAIL() << "Shader compilation failed, expecting success:\n" << mInfoLog;
      }
  }
  
  // Test an invalid shader where a for loop index is used as a target of assignment.
  TEST_F(AppendixALimitationsTest, IndexAsTargetOfAssignment)
  {
      const std::string &shaderString =
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "    for (int i = 0; i < 2; ++i)\n"
          "    {\n"
          "        i = 2;\n"
          "    }\n"
          "    gl_FragColor = vec4(0.0);\n"
          "}\n";
      if (compile(shaderString))
      {
          FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog;
      }
  }
  
  // Test an invalid shader where a for loop index is incremented inside the loop.
  TEST_F(AppendixALimitationsTest, IndexIncrementedInLoopBody)
  {
      const std::string &shaderString =
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "    for (int i = 0; i < 2; ++i)\n"
          "    {\n"
          "        ++i;\n"
          "    }\n"
          "    gl_FragColor = vec4(0.0);\n"
          "}\n";
      if (compile(shaderString))
      {
          FAIL() << "Shader compilation succeeded, expecting failure:\n" << mInfoLog;
      }
  }