kc3-lang/angle/src/tests/gl_tests/SamplersTest.cpp

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• Hash : 1b1a8640
  Author :
  Date : 2018-01-23T15:12:01
  

  Support correct validation for samplerParameterf with GL_TEXTURE_MAX_ANISOTROPY_EXT
  
  Bug: angleproject:2072
  
  Change-Id: I3e0b63f2a63e8769e3eab2be3aa0403317ed0707
  Reviewed-on: https://chromium-review.googlesource.com/881707
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Luc Ferron <lucferron@google.com>
  

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• src/tests/gl_tests/SamplersTest.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.
  //
  
  // SamplerTest.cpp : Tests for samplers.
  
  #include "test_utils/ANGLETest.h"
  
  #include "test_utils/gl_raii.h"
  
  namespace angle
  {
  
  class SamplersTest : public ANGLETest
  {
    protected:
      SamplersTest() {}
  
      // Sets a value for GL_TEXTURE_MAX_ANISOTROPY_EXT and expects it to fail.
      void validateInvalidAnisotropy(GLSampler &sampler, float invalidValue)
      {
          glSamplerParameterf(sampler, GL_TEXTURE_MAX_ANISOTROPY_EXT, invalidValue);
          EXPECT_GL_ERROR(GL_INVALID_VALUE);
      }
  
      // Sets a value for GL_TEXTURE_MAX_ANISOTROPY_EXT and expects it to work.
      void validateValidAnisotropy(GLSampler &sampler, float validValue)
      {
          glSamplerParameterf(sampler, GL_TEXTURE_MAX_ANISOTROPY_EXT, validValue);
          EXPECT_GL_NO_ERROR();
  
          GLfloat valueToVerify = 0.0f;
          glGetSamplerParameterfv(sampler, GL_TEXTURE_MAX_ANISOTROPY_EXT, &valueToVerify);
          ASSERT_EQ(valueToVerify, validValue);
      }
  };
  
  // Verify that samplerParameterf supports TEXTURE_MAX_ANISOTROPY_EXT valid values.
  TEST_P(SamplersTest, ValidTextureSamplerMaxAnisotropyExt)
  {
      GLSampler sampler;
  
      // Exact min
      validateValidAnisotropy(sampler, 1.0f);
  
      GLfloat maxValue = 0.0f;
      glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxValue);
  
      // Max value
      validateValidAnisotropy(sampler, maxValue - 1);
  
      // In-between
      GLfloat between = (1.0f + maxValue) / 2;
      validateValidAnisotropy(sampler, between);
  }
  
  // Verify an error is thrown if we try to go under the minimum value for
  // GL_TEXTURE_MAX_ANISOTROPY_EXT
  TEST_P(SamplersTest, InvalidUnderTextureSamplerMaxAnisotropyExt)
  {
      GLSampler sampler;
  
      // Under min
      validateInvalidAnisotropy(sampler, 0.0f);
  }
  
  // Verify an error is thrown if we try to go over the max value for
  // GL_TEXTURE_MAX_ANISOTROPY_EXT
  TEST_P(SamplersTest, InvalidOverTextureSamplerMaxAnisotropyExt)
  {
      GLSampler sampler;
  
      GLfloat maxValue = 0.0f;
      glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxValue);
      maxValue += 1;
  
      validateInvalidAnisotropy(sampler, maxValue);
  }
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these
  // tests should be run against.
  // Samplers are only supported on ES3.
  ANGLE_INSTANTIATE_TEST(SamplersTest, ES3_D3D11(), ES3_OPENGL(), ES3_OPENGLES());
  }  // namespace
  

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