kc3-lang/angle/src/tests/gl_tests/D3DImageFormatConversionTest.cpp

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• Author : Luc Ferron
  Date : 2018-06-08 15:57:31
  Hash : af883628
  Message : Vulkan: enable as many end2end tests as possible Bug: angleproject:2615 Change-Id: I918cc18984b2e5b22b5e13398355a2fd60e4eb00 Reviewed-on: https://chromium-review.googlesource.com/1093564 Commit-Queue: Luc Ferron <lucferron@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

• src/tests/gl_tests/D3DImageFormatConversionTest.cpp

• //
  // Copyright 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.
  //
  // D3DImageFormatConversionTest:
  //   Basic tests to validate code relating to D3D Image format conversions.
  
  #include "test_utils/ANGLETest.h"
  
  #include "image_util/imageformats.h"
  
  using namespace angle;
  
  namespace
  {
  
  class D3DImageFormatConversionTest : public ANGLETest
  {
    protected:
      D3DImageFormatConversionTest()
      {
          setWindowWidth(128);
          setWindowHeight(128);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
      }
  
      void SetUp() override
      {
          ANGLETest::SetUp();
  
          const std::string vertexShaderSource =
              R"(precision highp float;
              attribute vec4 position;
              varying vec2 texcoord;
  
              void main()
              {
                  gl_Position = vec4(position.xy, 0.0, 1.0);
                  texcoord = (position.xy * 0.5) + 0.5;
              })";
  
          const std::string fragmentShaderSource2D =
              R"(precision highp float;
              uniform sampler2D tex;
              varying vec2 texcoord;
  
              void main()
              {
                  gl_FragColor = texture2D(tex, texcoord);
              })";
  
          m2DProgram = CompileProgram(vertexShaderSource, fragmentShaderSource2D);
          mTexture2DUniformLocation = glGetUniformLocation(m2DProgram, "tex");
      }
  
      void TearDown() override
      {
          glDeleteProgram(m2DProgram);
  
          ANGLETest::TearDown();
      }
  
      // Uses ColorStructType::writeColor to populate initial data for a texture, pass it to glTexImage2D, then render with it.
      // The resulting colors should match the colors passed into ::writeColor.
      template <typename ColorStructType>
      void runTest(GLenum tex2DFormat, GLenum tex2DType)
      {
          gl::ColorF srcColorF[4];
          ColorStructType pixels[4];
  
          GLuint tex = 0;
          GLuint fbo = 0;
          glGenTextures(1, &tex);
          glGenFramebuffers(1, &fbo);
          EXPECT_GL_NO_ERROR();
  
          srcColorF[0].red = 1.0f; srcColorF[0].green = 0.0f; srcColorF[0].blue = 0.0f; srcColorF[0].alpha = 1.0f; // Red
          srcColorF[1].red = 0.0f; srcColorF[1].green = 1.0f; srcColorF[1].blue = 0.0f; srcColorF[1].alpha = 1.0f; // Green
          srcColorF[2].red = 0.0f; srcColorF[2].green = 0.0f; srcColorF[2].blue = 1.0f; srcColorF[2].alpha = 1.0f; // Blue
          srcColorF[3].red = 1.0f; srcColorF[3].green = 1.0f; srcColorF[3].blue = 0.0f; srcColorF[3].alpha = 1.0f; // Red + Green (Yellow)
  
          // Convert the ColorF into the pixels that will be fed to glTexImage2D
          for (unsigned int i = 0; i < 4; i++)
          {
              ColorStructType::writeColor(&(pixels[i]), &(srcColorF[i]));
          }
  
          // Generate the texture
          glBindTexture(GL_TEXTURE_2D, tex);
          glTexImage2D(GL_TEXTURE_2D, 0, tex2DFormat, 2, 2, 0, tex2DFormat, tex2DType, pixels);
          glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
          glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
          EXPECT_GL_NO_ERROR();
  
          // Draw a quad using the texture
          glClearColor(0, 0, 0, 0);
          glClear(GL_COLOR_BUFFER_BIT);
          glUseProgram(m2DProgram);
          glUniform1i(mTexture2DUniformLocation, 0);
          drawQuad(m2DProgram, "position", 0.5f);
          EXPECT_GL_NO_ERROR();
  
          // Check that the pixel colors match srcColorF
          EXPECT_PIXEL_EQ(                    0,                    0, 255,   0,   0, 255);
          EXPECT_PIXEL_EQ(getWindowHeight() - 1,                    0,   0, 255,   0, 255);
          EXPECT_PIXEL_EQ(                    0, getWindowWidth() - 1,   0,   0, 255, 255);
          EXPECT_PIXEL_EQ(getWindowHeight() - 1, getWindowWidth() - 1, 255, 255,   0, 255);
          swapBuffers();
  
          glDeleteFramebuffers(1, &fbo);
          glDeleteTextures(1, &tex);
      }
  
      GLuint m2DProgram;
      GLint mTexture2DUniformLocation;
  };
  
  // Validation test for rx::R4G4B4A4's writeColor functions
  TEST_P(D3DImageFormatConversionTest, WriteColorFunctionR4G4B4A4)
  {
      runTest<R4G4B4A4>(GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4);
  }
  
  // Validation test for rx::R5G5B5A1's writeColor functions
  TEST_P(D3DImageFormatConversionTest, WriteColorFunctionR5G5B5A1)
  {
      runTest<R5G5B5A1>(GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1);
  }
  
  // Validation test for rx::R5G6B5's writeColor functions
  TEST_P(D3DImageFormatConversionTest, WriteColorFunctionR5G6B5)
  {
      runTest<R5G6B5>(GL_RGB, GL_UNSIGNED_SHORT_5_6_5);
  }
  
  // Validation test for rx::R8G8B8A8's writeColor functions
  TEST_P(D3DImageFormatConversionTest, WriteColorFunctionR8G8B8A8)
  {
      runTest<R8G8B8A8>(GL_RGBA, GL_UNSIGNED_BYTE);
  }
  
  // Validation test for rx::R8G8B8's writeColor functions
  TEST_P(D3DImageFormatConversionTest, WriteColorFunctionR8G8B8)
  {
      glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
      runTest<R8G8B8>(GL_RGB, GL_UNSIGNED_BYTE);
  }
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these tests should be run against.
  // Even though this test is only run on Windows (since it includes imageformats.h from the D3D renderer), we can still run the test
  // against OpenGL. This is valuable, since it provides extra validation using a renderer that doesn't use imageformats.h itself.
  ANGLE_INSTANTIATE_TEST(D3DImageFormatConversionTest,
                         ES2_D3D9(),
                         ES2_D3D11(),
                         ES2_D3D11_FL9_3(),
                         ES2_OPENGL(),
                         ES2_VULKAN());
  
  } // namespace