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

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• Author : Jamie Madill
  Date : 2018-11-27 11:34:27
  Hash : b980c563
  Message : Reformat all cpp and h files. This applies git cl format --full to all ANGLE sources. Bug: angleproject:2986 Change-Id: Ib504e618c1589332a37e97696cdc3515d739308f Reviewed-on: https://chromium-review.googlesource.com/c/1351367 Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>

• src/tests/compiler_tests/ScalarizeVecAndMatConstructorArgs_test.cpp

• //
  // Copyright (c) 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.
  //
  // ScalarizeVecAndMatConstructorArgs_test.cpp:
  //   Tests for scalarizing vector and matrix constructor args.
  //
  
  #include "GLSLANG/ShaderLang.h"
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "tests/test_utils/compiler_test.h"
  
  using namespace sh;
  
  namespace
  {
  
  class ScalarizeVecAndMatConstructorArgsTest : public MatchOutputCodeTest
  {
    public:
      ScalarizeVecAndMatConstructorArgsTest()
          : MatchOutputCodeTest(GL_FRAGMENT_SHADER,
                                SH_SCALARIZE_VEC_AND_MAT_CONSTRUCTOR_ARGS,
                                SH_ESSL_OUTPUT)
      {}
  };
  
  // Verifies scalarizing matrix inside a vector constructor.
  TEST_F(ScalarizeVecAndMatConstructorArgsTest, MatrixInVectorConstructor)
  {
      const std::string shaderString =
          R"(
          precision mediump float;
  
          uniform mat2 umat2;
  
          void main()
          {
              gl_FragColor = vec4(umat2);
          })";
      compile(shaderString);
  
      std::vector<const char *> expectedStrings = {
          "main()", " = _uumat2", "gl_FragColor = vec4(", "[0][0],", "[0][1],", "[1][0],", "[1][1])"};
  
      EXPECT_TRUE(foundInCodeInOrder(expectedStrings));
  }
  
  // Verifies scalarizing a vector insized a matrix constructor.
  TEST_F(ScalarizeVecAndMatConstructorArgsTest, VectorInMatrixConstructor)
  {
      const std::string shaderString =
          R"(
          precision mediump float;
  
          uniform vec2 uvec2;
  
          void main()
          {
              mat2 m = mat2(uvec2, uvec2);
              gl_FragColor = vec4(m * uvec2, m * uvec2);
          })";
      compile(shaderString);
  
      std::vector<const char *> expectedStrings = {
          "main()", " = _uuvec2", "mat2(", "[0],", "[1],", "[0],", "[1])", "gl_FragColor = vec4("};
  
      EXPECT_TRUE(foundInCodeInOrder(expectedStrings));
  }
  
  // Verifies that scalarizing vector and matrix constructor args inside a sequence operator preserves
  // correct order of operations.
  TEST_F(ScalarizeVecAndMatConstructorArgsTest, SequenceOperator)
  {
      const std::string shaderString =
          R"(
          precision mediump float;
  
          uniform vec2 u;
  
          void main()
          {
              vec2 v = u;
              mat2 m = (v[0] += 1.0, mat2(v, v[1], -v[0]));
              gl_FragColor = vec4(m[0], m[1]);
          })";
      compile(shaderString);
  
      std::vector<const char *> expectedStrings = {"_uv[0] += 1.0", "-_uv[0]"};
  
      EXPECT_TRUE(foundInCodeInOrder(expectedStrings));
  }
  
  // Verifies that scalarizing vector and matrix constructor args inside multiple declarations
  // preserves the correct order of operations.
  TEST_F(ScalarizeVecAndMatConstructorArgsTest, MultiDeclaration)
  {
      const std::string shaderString =
          R"(
          precision mediump float;
  
          uniform vec2 u;
  
          void main()
          {
              vec2 v = vec2(u[0]),
                   w = mat2(v, v) * u;
              gl_FragColor = vec4(v, w);
          })";
      compile(shaderString);
  
      std::vector<const char *> expectedStrings = {"vec2(_uu[0])", "mat2("};
  
      EXPECT_TRUE(foundInCodeInOrder(expectedStrings));
  }
  
  }  // anonymous namespace