kc3-lang/angle/src/tests/perf_tests/TexSubImage.cpp

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• Hash : ba319ba3
  Author :
  Date : 2018-12-29T10:29:33
  

  Re-land "Load entry points dynamically in tests and samples."
  
  Fixes the Android/ChromeOS/Fuchsia builds by using consistent EGL
  headers.
  
  This CL adds a dynamic loader generator based on XML files. It also
  refactors the entry point generation script to move the XML parsing
  into a helper class.
  
  Additionally this includes a new GLES 1.0 base header. The new
  header allows for function pointer types and hiding prototypes.
  
  All tests and samples now load ANGLE dynamically. In the future this
  will be extended to load entry points from the driver directly when
  possible. This will allow us to perform more accurate A/B testing.
  
  The new build configuration leads to some tests having more warnings
  applied. The CL includes fixes for the new warnings.
  
  Bug: angleproject:2995
  Change-Id: I5a8772f41a0f89570b3736b785f44b7de1539b57
  Reviewed-on: https://chromium-review.googlesource.com/c/1392382
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/tests/perf_tests/TexSubImage.cpp

• //
  // Copyright (c) 2014 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.
  //
  // TexSubImageBenchmark:
  //   Performace test for ANGLE texture updates.
  //
  
  #include <sstream>
  
  #include "ANGLEPerfTest.h"
  #include "util/shader_utils.h"
  
  using namespace angle;
  
  namespace
  {
  constexpr unsigned int kIterationsPerStep = 9;
  
  struct TexSubImageParams final : public RenderTestParams
  {
      TexSubImageParams()
      {
          iterationsPerStep = kIterationsPerStep;
  
          // Common default parameters
          majorVersion = 2;
          minorVersion = 0;
          windowWidth  = 512;
          windowHeight = 512;
  
          imageWidth     = 1024;
          imageHeight    = 1024;
          subImageWidth  = 64;
          subImageHeight = 64;
      }
  
      std::string suffix() const override;
  
      // Static parameters
      int imageWidth;
      int imageHeight;
      int subImageWidth;
      int subImageHeight;
  };
  
  std::ostream &operator<<(std::ostream &os, const TexSubImageParams &params)
  {
      os << params.suffix().substr(1);
      return os;
  }
  
  class TexSubImageBenchmark : public ANGLERenderTest,
                               public ::testing::WithParamInterface<TexSubImageParams>
  {
    public:
      TexSubImageBenchmark();
  
      void initializeBenchmark() override;
      void destroyBenchmark() override;
      void drawBenchmark() override;
  
    private:
      GLuint createTexture();
  
      // Handle to a program object
      GLuint mProgram;
  
      // Attribute locations
      GLint mPositionLoc;
      GLint mTexCoordLoc;
  
      // Sampler location
      GLint mSamplerLoc;
  
      // Texture handle
      GLuint mTexture;
  
      // Buffer handle
      GLuint mVertexBuffer;
      GLuint mIndexBuffer;
  
      GLubyte *mPixels;
  };
  
  std::string TexSubImageParams::suffix() const
  {
      // TODO(jmadill)
      return RenderTestParams::suffix();
  }
  
  TexSubImageBenchmark::TexSubImageBenchmark()
      : ANGLERenderTest("TexSubImage", GetParam()),
        mProgram(0),
        mPositionLoc(-1),
        mTexCoordLoc(-1),
        mSamplerLoc(-1),
        mTexture(0),
        mVertexBuffer(0),
        mIndexBuffer(0),
        mPixels(nullptr)
  {
      addExtensionPrerequisite("GL_EXT_texture_storage");
  }
  
  GLuint TexSubImageBenchmark::createTexture()
  {
      const auto &params = GetParam();
  
      // Use tightly packed data
      glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
  
      // Generate a texture object
      GLuint texture;
      glGenTextures(1, &texture);
  
      // Bind the texture object
      glBindTexture(GL_TEXTURE_2D, texture);
  
      glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8, params.imageWidth, params.imageHeight);
  
      // Set the filtering mode
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  
      return texture;
  }
  
  void TexSubImageBenchmark::initializeBenchmark()
  {
      const auto &params = GetParam();
  
      constexpr char kVS[] = R"(attribute vec4 a_position;
  attribute vec2 a_texCoord;
  varying vec2 v_texCoord;
  void main()
  {
      gl_Position = a_position;
      v_texCoord  = a_texCoord;
  })";
  
      constexpr char kFS[] = R"(precision mediump float;
  varying vec2 v_texCoord;
  uniform sampler2D s_texture;
  void main()
  {
      gl_FragColor = texture2D(s_texture, v_texCoord);
  })";
  
      mProgram = CompileProgram(kVS, kFS);
      ASSERT_NE(0u, mProgram);
  
      // Get the attribute locations
      mPositionLoc = glGetAttribLocation(mProgram, "a_position");
      mTexCoordLoc = glGetAttribLocation(mProgram, "a_texCoord");
  
      // Get the sampler location
      mSamplerLoc = glGetUniformLocation(mProgram, "s_texture");
  
      // Build the vertex buffer
      GLfloat vertices[] = {
          -0.5f, 0.5f,  0.0f,  // Position 0
          0.0f,  0.0f,         // TexCoord 0
          -0.5f, -0.5f, 0.0f,  // Position 1
          0.0f,  1.0f,         // TexCoord 1
          0.5f,  -0.5f, 0.0f,  // Position 2
          1.0f,  1.0f,         // TexCoord 2
          0.5f,  0.5f,  0.0f,  // Position 3
          1.0f,  0.0f          // TexCoord 3
      };
  
      glGenBuffers(1, &mVertexBuffer);
      glBindBuffer(GL_ARRAY_BUFFER, mVertexBuffer);
      glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
  
      GLushort indices[] = {0, 1, 2, 0, 2, 3};
      glGenBuffers(1, &mIndexBuffer);
      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mIndexBuffer);
      glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
  
      // Load the texture
      mTexture = createTexture();
  
      glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
  
      mPixels = new GLubyte[params.subImageWidth * params.subImageHeight * 4];
  
      // Fill the pixels structure with random data:
      for (int y = 0; y < params.subImageHeight; ++y)
      {
          for (int x = 0; x < params.subImageWidth; ++x)
          {
              int offset          = (x + (y * params.subImageWidth)) * 4;
              mPixels[offset + 0] = rand() % 255;  // Red
              mPixels[offset + 1] = rand() % 255;  // Green
              mPixels[offset + 2] = rand() % 255;  // Blue
              mPixels[offset + 3] = 255;           // Alpha
          }
      }
  
      ASSERT_GL_NO_ERROR();
  }
  
  void TexSubImageBenchmark::destroyBenchmark()
  {
      glDeleteProgram(mProgram);
      glDeleteBuffers(1, &mVertexBuffer);
      glDeleteBuffers(1, &mIndexBuffer);
      glDeleteTextures(1, &mTexture);
      delete[] mPixels;
  }
  
  void TexSubImageBenchmark::drawBenchmark()
  {
      // Set the viewport
      glViewport(0, 0, getWindow()->getWidth(), getWindow()->getHeight());
  
      // Clear the color buffer
      glClear(GL_COLOR_BUFFER_BIT);
  
      // Use the program object
      glUseProgram(mProgram);
  
      // Bind the buffers
      glBindBuffer(GL_ARRAY_BUFFER, mVertexBuffer);
      glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mIndexBuffer);
  
      // Load the vertex position
      glVertexAttribPointer(mPositionLoc, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), 0);
      // Load the texture coordinate
      glVertexAttribPointer(mTexCoordLoc, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat),
                            reinterpret_cast<void *>(3 * sizeof(GLfloat)));
  
      glEnableVertexAttribArray(mPositionLoc);
      glEnableVertexAttribArray(mTexCoordLoc);
  
      // Bind the texture
      glActiveTexture(GL_TEXTURE0);
      glBindTexture(GL_TEXTURE_2D, mTexture);
  
      // Set the texture sampler to texture unit to 0
      glUniform1i(mSamplerLoc, 0);
  
      ASSERT_GL_NO_ERROR();
  
      const auto &params = GetParam();
  
      for (unsigned int iteration = 0; iteration < params.iterationsPerStep; ++iteration)
      {
          glTexSubImage2D(GL_TEXTURE_2D, 0, rand() % (params.imageWidth - params.subImageWidth),
                          rand() % (params.imageHeight - params.subImageHeight), params.subImageWidth,
                          params.subImageHeight, GL_RGBA, GL_UNSIGNED_BYTE, mPixels);
  
          glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
      }
  
      ASSERT_GL_NO_ERROR();
  }
  
  TexSubImageParams D3D11Params()
  {
      TexSubImageParams params;
      params.eglParameters = egl_platform::D3D11();
      return params;
  }
  
  TexSubImageParams D3D9Params()
  {
      TexSubImageParams params;
      params.eglParameters = egl_platform::D3D9();
      return params;
  }
  
  TexSubImageParams OpenGLOrGLESParams()
  {
      TexSubImageParams params;
      params.eglParameters = egl_platform::OPENGL_OR_GLES(false);
      return params;
  }
  
  TexSubImageParams VulkanParams()
  {
      TexSubImageParams params;
      params.eglParameters = egl_platform::VULKAN();
      return params;
  }
  
  }  // namespace
  
  TEST_P(TexSubImageBenchmark, Run)
  {
      run();
  }
  
  ANGLE_INSTANTIATE_TEST(TexSubImageBenchmark,
                         D3D11Params(),
                         D3D9Params(),
                         OpenGLOrGLESParams(),
                         VulkanParams());
  

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