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

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• Hash : 821f40a4
  Author :
  Date : 2015-02-03T15:26:40
  

  Fix conversion to bool warning.
  
  BUG=453543
  
  Change-Id: I287cc3b6e86df71eb3dfa3c82316ae56950913b3
  Reviewed-on: https://chromium-review.googlesource.com/245833
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• tests/compiler_tests/ShaderExtension_test.cpp

• //
  // Copyright (c) 2015 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.
  //
  // Extension_test.cpp
  //   Test that shaders need various extensions to be compiled.
  //
  
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "GLSLANG/ShaderLang.h"
  
  static const char *FragDepthExtShdr[] =
  {
      // First string of the shader. The required pragma declaration.
      "#extension GL_EXT_frag_depth : enable\n",
  
      // Second string of the shader. The rest of the shader body.
      "void main() { gl_FragDepthEXT = 1.0; }\n"
  };
  
  static const char *StandDerivExtShdr[] =
  {
      // First string of the shader. The required pragma declaration.
      "#extension GL_OES_standard_derivatives : enable\n",
  
      // Second string of the shader. The rest of the shader body.
      "precision mediump float;\n"
      "varying vec2 texCoord;\n"
      "void main() { gl_FragColor = vec4(dFdx(texCoord.x), dFdy(texCoord.y), fwidth(texCoord.x), 1.0); }\n"
  };
  
  static const char *TextureLODShdr[] =
  {
      // First string of the shader. The required pragma declaration.
      "#extension GL_EXT_shader_texture_lod : enable\n",
  
      // Second string of the shader. The rest of the shader body.
      "precision mediump float;\n"
      "varying vec2 texCoord0v;\n"
      "uniform float lod;\n"
      "uniform sampler2D tex;\n"
      "void main() { vec4 color = texture2DLodEXT(tex, texCoord0v, lod); }\n"
  };
  
  class ShaderExtensionTest : public testing::Test
  {
    public:
      ShaderExtensionTest() {}
  
    protected:
      virtual void SetUp()
      {
          ShInitBuiltInResources(&mResources);
          mCompiler = NULL;
      }
  
      virtual void TearDown()
      {
          DestroyCompiler();
      }
  
      void DestroyCompiler()
      {
          if (mCompiler)
          {
              ShDestruct(mCompiler);
              mCompiler = NULL;
          }
      }
  
      void InitializeCompiler()
      {
          DestroyCompiler();
          mCompiler = ShConstructCompiler(GL_FRAGMENT_SHADER, SH_WEBGL_SPEC, SH_GLSL_OUTPUT, &mResources);
          ASSERT_TRUE(mCompiler != NULL) << "Compiler could not be constructed.";
      }
  
      void TestShaderExtension(const char **shaderStrings, int stringCount, bool expectation)
      {
          bool success = ShCompile(mCompiler, shaderStrings, stringCount, 0);
          const std::string& compileLog = ShGetInfoLog(mCompiler);
          EXPECT_EQ(success, expectation) << compileLog;
      }
  
    protected:
      ShBuiltInResources mResources;
      ShHandle mCompiler;
  };
  
  TEST_F(ShaderExtensionTest, FragDepthExtRequiresExt)
  {
      // Extension is required to compile properly.
      mResources.EXT_frag_depth = 0;
      InitializeCompiler();
      TestShaderExtension(FragDepthExtShdr, 2, false);
  }
  
  TEST_F(ShaderExtensionTest, FragDepthExtRequiresPragma)
  {
      // Pragma is required to compile properly.
      mResources.EXT_frag_depth = 1;
      InitializeCompiler();
      TestShaderExtension(&FragDepthExtShdr[1], 1, false);
  }
  
  TEST_F(ShaderExtensionTest, FragDepthExtCompiles)
  {
      // Test that it compiles properly with extension enabled.
      mResources.EXT_frag_depth = 1;
      InitializeCompiler();
      TestShaderExtension(FragDepthExtShdr, 2, true);
  }
  
  TEST_F(ShaderExtensionTest, FragDepthExtResetsInternalStates)
  {
      // Test that extension internal states are reset properly between compiles.
      mResources.EXT_frag_depth = 1;
      InitializeCompiler();
  
      TestShaderExtension(FragDepthExtShdr, 2, true);
      TestShaderExtension(&FragDepthExtShdr[1], 1, false);
      TestShaderExtension(FragDepthExtShdr, 2, true);
  };
  
  TEST_F(ShaderExtensionTest, StandDerivExtRequiresExt)
  {
      // Extension is required to compile properly.
      mResources.OES_standard_derivatives = 0;
      InitializeCompiler();
      TestShaderExtension(StandDerivExtShdr, 2, false);
  }
  
  TEST_F(ShaderExtensionTest, StandDerivExtRequiresPragma)
  {
      // Pragma is required to compile properly.
      mResources.OES_standard_derivatives = 1;
      InitializeCompiler();
      TestShaderExtension(&StandDerivExtShdr[1], 1, false);
  }
  
  TEST_F(ShaderExtensionTest, StandDerivExtCompiles)
  {
      // Test that it compiles properly with extension enabled.
      mResources.OES_standard_derivatives = 1;
      InitializeCompiler();
      TestShaderExtension(StandDerivExtShdr, 2, true);
  }
  
  TEST_F(ShaderExtensionTest, StandDerivExtResetsInternalStates)
  {
      // Test that extension internal states are reset properly between compiles.
      mResources.OES_standard_derivatives = 1;
      InitializeCompiler();
  
      TestShaderExtension(StandDerivExtShdr, 2, true);
      TestShaderExtension(&StandDerivExtShdr[1], 1, false);
      TestShaderExtension(StandDerivExtShdr, 2, true);
      TestShaderExtension(&StandDerivExtShdr[1], 1, false);
  };
  
  TEST_F(ShaderExtensionTest, TextureLODExtRequiresExt)
  {
      // Extension is required to compile properly.
      mResources.EXT_shader_texture_lod = 0;
      InitializeCompiler();
      TestShaderExtension(TextureLODShdr, 2, false);
  }
  
  TEST_F(ShaderExtensionTest, TextureLODExtRequiresPragma)
  {
      // Pragma is required to compile properly.
      mResources.EXT_shader_texture_lod = 1;
      InitializeCompiler();
      TestShaderExtension(&TextureLODShdr[1], 1, false);
  }
  
  TEST_F(ShaderExtensionTest, TextureLODExtCompiles)
  {
      // Test that it compiles properly with extension enabled.
      mResources.EXT_shader_texture_lod = 1;
      InitializeCompiler();
      TestShaderExtension(TextureLODShdr, 2, true);
  }
  
  TEST_F(ShaderExtensionTest, TextureLODExtResetsInternalStates)
  {
      // Test that extension internal states are reset properly between compiles.
      mResources.EXT_shader_texture_lod = 1;
      InitializeCompiler();
  
      TestShaderExtension(&TextureLODShdr[1], 1, false);
      TestShaderExtension(TextureLODShdr, 2, true);
      TestShaderExtension(&TextureLODShdr[1], 1, false);
      TestShaderExtension(TextureLODShdr, 2, true);
  };
  

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