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

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• Hash : 5cbaa3f8
  Author :
  Date : 2019-05-07T15:49:22
  

  Don't inherit ANGLETest SetUp and TearDown.
  
  Instead of inheriting from testing::Test's SetUp and TearDown we add
  new methods 'testSetUp' and 'testTearDown'. This helps prevent a common
  error of forgetting to call the base class method.
  
  Also add a check in the ANGLETest destructor that SetUp and TearDown
  have been called.
  
  Bug: angleproject:3393
  Change-Id: Iab211305cc06ffea9ca649e864ddc9b180f2cba0
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1593960
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/tests/gl_tests/gles1/DrawTextureTest.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.
  //
  
  // DrawTextureTest.cpp: Tests basic usage of glDrawTex*.
  
  #include "test_utils/ANGLETest.h"
  #include "test_utils/gl_raii.h"
  
  #include <memory>
  #include <vector>
  
  using namespace angle;
  
  class DrawTextureTest : public ANGLETest
  {
    protected:
      DrawTextureTest()
      {
          setWindowWidth(32);
          setWindowHeight(32);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
          setConfigDepthBits(24);
      }
  
      void testSetUp() override
      {
          mTexture.reset(new GLTexture());
          glEnable(GL_TEXTURE_2D);
          glBindTexture(GL_TEXTURE_2D, mTexture->get());
      }
  
      void testTearDown() override { mTexture.reset(); }
  
      std::unique_ptr<GLTexture> mTexture;
  };
  
  // Negative test for invalid width/height values.
  TEST_P(DrawTextureTest, NegativeValue)
  {
      glDrawTexiOES(0, 0, 0, 0, 0);
      EXPECT_GL_ERROR(GL_INVALID_VALUE);
      glDrawTexiOES(0, 0, 0, -1, 0);
      EXPECT_GL_ERROR(GL_INVALID_VALUE);
      glDrawTexiOES(0, 0, 0, 0, -1);
      EXPECT_GL_ERROR(GL_INVALID_VALUE);
      glDrawTexiOES(0, 0, 0, -1, -1);
      EXPECT_GL_ERROR(GL_INVALID_VALUE);
  }
  
  // Basic draw.
  TEST_P(DrawTextureTest, Basic)
  {
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &GLColor::green);
      glDrawTexiOES(0, 0, 0, 1, 1);
      EXPECT_GL_NO_ERROR();
      EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green);
  }
  
  // Tests that odd viewport dimensions are handled correctly.
  // If the viewport dimension is even, then the incorrect way
  // of getting the center screen coordinate by dividing by 2 and
  // converting to integer will work in that case, but not if
  // the viewport dimension is odd.
  TEST_P(DrawTextureTest, CorrectNdcForOddViewportDimensions)
  {
      glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
      glClear(GL_COLOR_BUFFER_BIT);
  
      // clang-format off
      std::array<GLColor, 2> textureData = {
          GLColor::green, GLColor::green
      };
      // clang-format on
  
      glViewport(0, 0, 3, 3);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, textureData.data());
  
      GLint cropRect[] = {0, 0, 2, 1};
      glTexParameteriv(GL_TEXTURE_2D, GL_TEXTURE_CROP_RECT_OES, cropRect);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
      EXPECT_GL_NO_ERROR();
  
      GLint x = 1;
      GLint y = 1;
      glDrawTexiOES(x, y, 0, 2, 1);
      EXPECT_GL_NO_ERROR();
  
      EXPECT_PIXEL_COLOR_EQ(x, y, GLColor::green);
      EXPECT_PIXEL_COLOR_EQ(x + 1, y, GLColor::green);
  
      EXPECT_PIXEL_COLOR_EQ(x, y + 1, GLColor::black);
      EXPECT_PIXEL_COLOR_EQ(x + 1, y + 1, GLColor::black);
      EXPECT_PIXEL_COLOR_EQ(x + 2, y, GLColor::black);
      EXPECT_PIXEL_COLOR_EQ(x + 3, y, GLColor::black);
  }
  
  // Tests that vertex attributes enabled with fewer than 6 verts do not cause a crash.
  TEST_P(DrawTextureTest, VertexAttributesNoCrash)
  {
      glEnableClientState(GL_COLOR_ARRAY);
      glColorPointer(4, GL_FLOAT, 0, &GLColor::white);
  
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &GLColor::green);
      EXPECT_GL_NO_ERROR();
  
      glDrawTexiOES(0, 0, 0, 1, 1);
      EXPECT_GL_NO_ERROR();
      EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green);
  }
  
  // Tests that the color array, if enabled, is not used as the vertex color.
  TEST_P(DrawTextureTest, ColorArrayNotUsed)
  {
      glEnableClientState(GL_COLOR_ARRAY);
  
      // This color is set to black on purpose to ensure that the color in the upcoming vertex array
      // is not used in the texture draw. If it is used, then the texture we want to read will be
      // modulated with the color in the vertex array instead of GL_CURRENT_COLOR (which at the moment
      // is white (1.0, 1.0, 1.0, 1.0).
      glColorPointer(4, GL_FLOAT, 0, &GLColor::black);
  
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &GLColor::green);
      EXPECT_GL_NO_ERROR();
  
      glDrawTexiOES(0, 0, 0, 1, 1);
      EXPECT_GL_NO_ERROR();
      EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::green);
  }
  
  ANGLE_INSTANTIATE_TEST(DrawTextureTest, ES1_D3D11(), ES1_OPENGL(), ES1_OPENGLES());
  

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