kc3-lang/angle/tests/compiler_tests/CollectVariables_test.cpp

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• Hash : 9ad55845
  Author :
  Date : 2014-10-30T11:38:55
  

  Fix angle_unittests failures.
  
  BUG=angle:815
  TEST=angle_unittests
  
  Change-Id: I4d59f227b7c72f4f456d0a60d8507d097ef05dec
  Reviewed-on: https://chromium-review.googlesource.com/226463
  Tested-by: Zhenyao Mo <zmo@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• tests/compiler_tests/CollectVariables_test.cpp

• //
  // Copyright (c) 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.
  //
  // CollectVariables_test.cpp:
  //   Some tests for shader inspection
  //
  
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "GLSLANG/ShaderLang.h"
  #include "compiler/translator/TranslatorGLSL.h"
  
  #define EXPECT_GLENUM_EQ(expected, actual) \
      EXPECT_EQ(static_cast<GLenum>(expected), static_cast<GLenum>(actual))
  
  class CollectVariablesTest : public testing::Test
  {
    public:
      CollectVariablesTest(GLenum shaderType)
          : mShaderType(shaderType)
      {}
  
    protected:
      virtual void SetUp()
      {
          ShBuiltInResources resources;
          ShInitBuiltInResources(&resources);
          resources.MaxDrawBuffers = 8;
  
          mTranslator = new TranslatorGLSL(mShaderType, SH_GLES3_SPEC);
          ASSERT_TRUE(mTranslator->Init(resources));
      }
  
      virtual void TearDown()
      {
          delete mTranslator;
      }
  
      GLenum mShaderType;
      TranslatorGLSL *mTranslator;
  };
  
  class CollectVertexVariablesTest : public CollectVariablesTest
  {
    public:
      CollectVertexVariablesTest() : CollectVariablesTest(GL_VERTEX_SHADER) {}
  };
  
  class CollectFragmentVariablesTest : public CollectVariablesTest
  {
    public:
        CollectFragmentVariablesTest() : CollectVariablesTest(GL_FRAGMENT_SHADER) {}
  };
  
  TEST_F(CollectFragmentVariablesTest, SimpleOutputVar)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "precision mediump float;\n"
          "out vec4 out_fragColor;\n"
          "void main() {\n"
          "   out_fragColor = vec4(1.0);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::Attribute> &outputVariables = mTranslator->getOutputVariables();
      ASSERT_EQ(1u, outputVariables.size());
  
      const sh::Attribute &outputVariable = outputVariables[0];
  
      EXPECT_EQ(0u, outputVariable.arraySize);
      EXPECT_EQ(-1, outputVariable.location);
      EXPECT_GLENUM_EQ(GL_MEDIUM_FLOAT, outputVariable.precision);
      EXPECT_TRUE(outputVariable.staticUse);
      EXPECT_GLENUM_EQ(GL_FLOAT_VEC4, outputVariable.type);
      EXPECT_EQ("out_fragColor", outputVariable.name);
  }
  
  TEST_F(CollectFragmentVariablesTest, LocationOutputVar)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "precision mediump float;\n"
          "layout(location=5) out vec4 out_fragColor;\n"
          "void main() {\n"
          "   out_fragColor = vec4(1.0);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::Attribute> &outputVariables = mTranslator->getOutputVariables();
      ASSERT_EQ(1u, outputVariables.size());
  
      const sh::Attribute &outputVariable = outputVariables[0];
  
      EXPECT_EQ(0u, outputVariable.arraySize);
      EXPECT_EQ(5, outputVariable.location);
      EXPECT_GLENUM_EQ(GL_MEDIUM_FLOAT, outputVariable.precision);
      EXPECT_TRUE(outputVariable.staticUse);
      EXPECT_GLENUM_EQ(GL_FLOAT_VEC4, outputVariable.type);
      EXPECT_EQ("out_fragColor", outputVariable.name);
  }
  
  TEST_F(CollectVertexVariablesTest, LocationAttribute)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "layout(location=5) in vec4 in_Position;\n"
          "void main() {\n"
          "   gl_Position = in_Position;\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::Attribute> &attributes = mTranslator->getAttributes();
      ASSERT_EQ(1u, attributes.size());
  
      const sh::Attribute &attribute = attributes[0];
  
      EXPECT_EQ(0u, attribute.arraySize);
      EXPECT_EQ(5, attribute.location);
      EXPECT_GLENUM_EQ(GL_HIGH_FLOAT, attribute.precision);
      EXPECT_TRUE(attribute.staticUse);
      EXPECT_GLENUM_EQ(GL_FLOAT_VEC4, attribute.type);
      EXPECT_EQ("in_Position", attribute.name);
  }
  
  TEST_F(CollectVertexVariablesTest, SimpleInterfaceBlock)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "uniform b {\n"
          "  float f;\n"
          "};"
          "void main() {\n"
          "   gl_Position = vec4(f, 0.0, 0.0, 1.0);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::InterfaceBlock> &interfaceBlocks = mTranslator->getInterfaceBlocks();
      ASSERT_EQ(1u, interfaceBlocks.size());
  
      const sh::InterfaceBlock &interfaceBlock = interfaceBlocks[0];
  
      EXPECT_EQ(0u, interfaceBlock.arraySize);
      EXPECT_FALSE(interfaceBlock.isRowMajorLayout);
      EXPECT_EQ(sh::BLOCKLAYOUT_SHARED, interfaceBlock.layout);
      EXPECT_EQ("b", interfaceBlock.name);
      EXPECT_TRUE(interfaceBlock.staticUse);
  
      ASSERT_EQ(1u, interfaceBlock.fields.size());
  
      const sh::InterfaceBlockField &field = interfaceBlock.fields[0];
  
      EXPECT_GLENUM_EQ(GL_HIGH_FLOAT, field.precision);
      EXPECT_TRUE(field.staticUse);
      EXPECT_GLENUM_EQ(GL_FLOAT, field.type);
      EXPECT_EQ("f", field.name);
      EXPECT_FALSE(field.isRowMajorLayout);
      EXPECT_TRUE(field.fields.empty());
  }
  
  TEST_F(CollectVertexVariablesTest, SimpleInstancedInterfaceBlock)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "uniform b {\n"
          "  float f;\n"
          "} blockInstance;"
          "void main() {\n"
          "   gl_Position = vec4(blockInstance.f, 0.0, 0.0, 1.0);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::InterfaceBlock> &interfaceBlocks = mTranslator->getInterfaceBlocks();
      ASSERT_EQ(1u, interfaceBlocks.size());
  
      const sh::InterfaceBlock &interfaceBlock = interfaceBlocks[0];
  
      EXPECT_EQ(0u, interfaceBlock.arraySize);
      EXPECT_FALSE(interfaceBlock.isRowMajorLayout);
      EXPECT_EQ(sh::BLOCKLAYOUT_SHARED, interfaceBlock.layout);
      EXPECT_EQ("b", interfaceBlock.name);
      EXPECT_TRUE(interfaceBlock.staticUse);
  
      ASSERT_EQ(1u, interfaceBlock.fields.size());
  
      const sh::InterfaceBlockField &field = interfaceBlock.fields[0];
  
      EXPECT_GLENUM_EQ(GL_HIGH_FLOAT, field.precision);
      EXPECT_TRUE(field.staticUse);
      EXPECT_GLENUM_EQ(GL_FLOAT, field.type);
      EXPECT_EQ("b.f", field.name);
      EXPECT_FALSE(field.isRowMajorLayout);
      EXPECT_TRUE(field.fields.empty());
  }
  
  TEST_F(CollectVertexVariablesTest, StructInterfaceBlock)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "struct st { float f; };"
          "uniform b {\n"
          "  st s;\n"
          "};"
          "void main() {\n"
          "   gl_Position = vec4(s.f, 0.0, 0.0, 1.0);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::InterfaceBlock> &interfaceBlocks = mTranslator->getInterfaceBlocks();
      ASSERT_EQ(1u, interfaceBlocks.size());
  
      const sh::InterfaceBlock &interfaceBlock = interfaceBlocks[0];
  
      EXPECT_EQ(0u, interfaceBlock.arraySize);
      EXPECT_FALSE(interfaceBlock.isRowMajorLayout);
      EXPECT_EQ(sh::BLOCKLAYOUT_SHARED, interfaceBlock.layout);
      EXPECT_EQ("b", interfaceBlock.name);
      EXPECT_TRUE(interfaceBlock.staticUse);
  
      ASSERT_EQ(1u, interfaceBlock.fields.size());
  
      const sh::InterfaceBlockField &field = interfaceBlock.fields[0];
  
      EXPECT_TRUE(field.isStruct());
      EXPECT_TRUE(field.staticUse);
      EXPECT_EQ("s", field.name);
      EXPECT_FALSE(field.isRowMajorLayout);
  
      const sh::ShaderVariable &member = field.fields[0];
  
      // NOTE: we don't currently mark struct members as statically used or not
      EXPECT_FALSE(member.isStruct());
      EXPECT_EQ("f", member.name);
      EXPECT_GLENUM_EQ(GL_FLOAT, member.type);
      EXPECT_GLENUM_EQ(GL_HIGH_FLOAT, member.precision);
  }
  
  TEST_F(CollectVertexVariablesTest, StructInstancedInterfaceBlock)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "struct st { float f; };"
          "uniform b {\n"
          "  st s;\n"
          "} instanceName;"
          "void main() {\n"
          "   gl_Position = vec4(instanceName.s.f, 0.0, 0.0, 1.0);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::InterfaceBlock> &interfaceBlocks = mTranslator->getInterfaceBlocks();
      ASSERT_EQ(1u, interfaceBlocks.size());
  
      const sh::InterfaceBlock &interfaceBlock = interfaceBlocks[0];
  
      EXPECT_EQ(0u, interfaceBlock.arraySize);
      EXPECT_FALSE(interfaceBlock.isRowMajorLayout);
      EXPECT_EQ(sh::BLOCKLAYOUT_SHARED, interfaceBlock.layout);
      EXPECT_EQ("b", interfaceBlock.name);
      EXPECT_TRUE(interfaceBlock.staticUse);
  
      ASSERT_EQ(1u, interfaceBlock.fields.size());
  
      const sh::InterfaceBlockField &field = interfaceBlock.fields[0];
  
      EXPECT_TRUE(field.isStruct());
      EXPECT_TRUE(field.staticUse);
      EXPECT_EQ("b.s", field.name);
      EXPECT_FALSE(field.isRowMajorLayout);
  
      const sh::ShaderVariable &member = field.fields[0];
  
      // NOTE: we don't currently mark struct members as statically used or not
      EXPECT_FALSE(member.isStruct());
      EXPECT_EQ("f", member.name);
      EXPECT_GLENUM_EQ(GL_FLOAT, member.type);
      EXPECT_GLENUM_EQ(GL_HIGH_FLOAT, member.precision);
  }
  
  TEST_F(CollectVertexVariablesTest, NestedStructRowMajorInterfaceBlock)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "struct st { mat2 m; };"
          "layout(row_major) uniform b {\n"
          "  st s;\n"
          "};"
          "void main() {\n"
          "   gl_Position = vec4(s.m);\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::InterfaceBlock> &interfaceBlocks = mTranslator->getInterfaceBlocks();
      ASSERT_EQ(1u, interfaceBlocks.size());
  
      const sh::InterfaceBlock &interfaceBlock = interfaceBlocks[0];
  
      EXPECT_EQ(0u, interfaceBlock.arraySize);
      EXPECT_TRUE(interfaceBlock.isRowMajorLayout);
      EXPECT_EQ(sh::BLOCKLAYOUT_SHARED, interfaceBlock.layout);
      EXPECT_EQ("b", interfaceBlock.name);
      EXPECT_TRUE(interfaceBlock.staticUse);
  
      ASSERT_EQ(1u, interfaceBlock.fields.size());
  
      const sh::InterfaceBlockField &field = interfaceBlock.fields[0];
  
      EXPECT_TRUE(field.isStruct());
      EXPECT_TRUE(field.staticUse);
      EXPECT_EQ("s", field.name);
      EXPECT_TRUE(field.isRowMajorLayout);
  
      const sh::ShaderVariable &member = field.fields[0];
  
      // NOTE: we don't currently mark struct members as statically used or not
      EXPECT_FALSE(member.isStruct());
      EXPECT_EQ("m", member.name);
      EXPECT_GLENUM_EQ(GL_FLOAT_MAT2, member.type);
      EXPECT_GLENUM_EQ(GL_HIGH_FLOAT, member.precision);
  }
  
  TEST_F(CollectVertexVariablesTest, VaryingInterpolation)
  {
      const std::string &shaderString =
          "#version 300 es\n"
          "precision mediump float;\n"
          "centroid out float vary;\n"
          "void main() {\n"
          "   gl_Position = vec4(1.0);\n"
          "   vary = 1.0;\n"
          "}\n";
  
      const char *shaderStrings[] = { shaderString.c_str() };
      ASSERT_TRUE(mTranslator->compile(shaderStrings, 1, SH_VARIABLES));
  
      const std::vector<sh::Varying> &varyings = mTranslator->getVaryings();
      ASSERT_EQ(2u, varyings.size());
  
      const sh::Varying *varying = &varyings[0];
  
      if (varying->name == "gl_Position")
      {
          varying = &varyings[1];
      }
  
      EXPECT_EQ(0u, varying->arraySize);
      EXPECT_GLENUM_EQ(GL_MEDIUM_FLOAT, varying->precision);
      EXPECT_TRUE(varying->staticUse);
      EXPECT_GLENUM_EQ(GL_FLOAT, varying->type);
      EXPECT_EQ("vary", varying->name);
      EXPECT_EQ(sh::INTERPOLATION_CENTROID, varying->interpolation);
  }
  

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