kc3-lang/angle/src/tests/gl_tests/gles1/CurrentTextureCoordsTest.cpp

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• Author : Eddie Hatfield
  Date : 2022-06-22 15:04:08
  Hash : 89e38b57
  Message : Refactor to use ANGLETest vs ANGLETestWithParam Bug: angleproject:6747 Change-Id: I72ad52d0268eae0e1a401f12f3e94cc5efa402f2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3719002 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>

• src/tests/gl_tests/gles1/CurrentTextureCoordsTest.cpp

• //
  // Copyright 2018 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.
  //
  
  // CurrentTextureCoordsTest.cpp: Tests basic usage of glMultiTexCoord4(f|x).
  
  #include "test_utils/ANGLETest.h"
  
  #include "common/vector_utils.h"
  #include "test_utils/gl_raii.h"
  #include "util/random_utils.h"
  
  #include <array>
  
  #include <stdint.h>
  
  using namespace angle;
  
  using TextureCoord = std::array<float, 4>;
  
  class CurrentTextureCoordsTest : public ANGLETest<>
  {
    protected:
      CurrentTextureCoordsTest()
      {
          setWindowWidth(32);
          setWindowHeight(32);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
          setConfigDepthBits(24);
      }
  };
  
  // State query: Checks the initial state is correct.
  TEST_P(CurrentTextureCoordsTest, InitialState)
  {
      GLint maxUnits = 0;
      glGetIntegerv(GL_MAX_TEXTURE_UNITS, &maxUnits);
      EXPECT_GL_NO_ERROR();
  
      const TextureCoord kZero = {0.0f, 0.0f, 0.0f, 0.0f};
      TextureCoord actualTexCoord;
  
      for (GLint i = 0; i < maxUnits; i++)
      {
          glActiveTexture(GL_TEXTURE0 + i);
          EXPECT_GL_NO_ERROR();
          glGetFloatv(GL_CURRENT_TEXTURE_COORDS, actualTexCoord.data());
          EXPECT_GL_NO_ERROR();
          EXPECT_EQ(kZero, actualTexCoord);
      }
  }
  
  // Checks that errors are generated if the texture unit specified is invalid.
  TEST_P(CurrentTextureCoordsTest, Negative)
  {
      GLint maxUnits = 0;
      glGetIntegerv(GL_MAX_TEXTURE_UNITS, &maxUnits);
      EXPECT_GL_NO_ERROR();
  
      glMultiTexCoord4f(GL_TEXTURE0 - 1, 1.0f, 0.0f, 0.0f, 0.0f);
      EXPECT_GL_ERROR(GL_INVALID_ENUM);
  
      glMultiTexCoord4f(GL_TEXTURE0 + maxUnits, 1.0f, 0.0f, 0.0f, 0.0f);
      EXPECT_GL_ERROR(GL_INVALID_ENUM);
  }
  
  // Tests setting and getting the current texture coordinates for each unit and with float/fixed
  // inputs.
  TEST_P(CurrentTextureCoordsTest, Set)
  {
      float epsilon  = 0.00001f;
      GLint maxUnits = 0;
      glGetIntegerv(GL_MAX_TEXTURE_UNITS, &maxUnits);
      EXPECT_GL_NO_ERROR();
  
      TextureCoord actualTexCoord;
  
      for (int i = 0; i < maxUnits; i++)
      {
          glActiveTexture(GL_TEXTURE0 + i);
          glMultiTexCoord4f(GL_TEXTURE0 + i, 0.1f, 0.2f, 0.3f, 0.4f);
          glGetFloatv(GL_CURRENT_TEXTURE_COORDS, actualTexCoord.data());
          EXPECT_EQ((TextureCoord{0.1f, 0.2f, 0.3f, 0.4f}), actualTexCoord);
  
          glMultiTexCoord4x(GL_TEXTURE0 + i, 0x10000, 0x0, 0x3333, 0x5555);
          glGetFloatv(GL_CURRENT_TEXTURE_COORDS, actualTexCoord.data());
          EXPECT_NEAR(1.0f, actualTexCoord[0], epsilon);
          EXPECT_NEAR(0.0f, actualTexCoord[1], epsilon);
          EXPECT_NEAR(0.2f, actualTexCoord[2], epsilon);
          EXPECT_NEAR(1.0f / 3.0f, actualTexCoord[3], epsilon);
      }
  }
  
  ANGLE_INSTANTIATE_TEST_ES1(CurrentTextureCoordsTest);