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

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/tests/perf_tests/DispatchComputePerf.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.
  //
  // DispatchComputePerf:
  //   Performance tests for ANGLE DispatchCompute call overhead.
  //
  
  #include "ANGLEPerfTest.h"
  #include "util/shader_utils.h"
  
  namespace
  {
  unsigned int kIterationsPerStep = 50;
  
  struct DispatchComputePerfParams final : public RenderTestParams
  {
      DispatchComputePerfParams()
      {
          iterationsPerStep = kIterationsPerStep;
          majorVersion      = 3;
          minorVersion      = 1;
      }
  
      std::string suffix() const override;
  
      unsigned int localSizeX    = 16;
      unsigned int localSizeY    = 16;
      unsigned int textureWidth  = 32;
      unsigned int textureHeight = 32;
  };
  
  std::string DispatchComputePerfParams::suffix() const
  {
      std::stringstream suffixStr;
      suffixStr << RenderTestParams::suffix();
  
      if (eglParameters.deviceType == EGL_PLATFORM_ANGLE_DEVICE_TYPE_NULL_ANGLE)
      {
          suffixStr << "_null";
      }
      return suffixStr.str();
  }
  
  std::ostream &operator<<(std::ostream &os, const DispatchComputePerfParams &params)
  {
      os << params.suffix().substr(1);
      return os;
  }
  
  class DispatchComputePerfBenchmark : public ANGLERenderTest,
                                       public ::testing::WithParamInterface<DispatchComputePerfParams>
  {
    public:
      DispatchComputePerfBenchmark();
  
      void initializeBenchmark() override;
      void destroyBenchmark() override;
      void drawBenchmark() override;
  
    private:
      void initComputeShader();
      void initTextures();
  
      GLuint mProgram      = 0;
      GLuint mReadTexture  = 0;
      GLuint mWriteTexture = 0;
      GLuint mDispatchX    = 0;
      GLuint mDispatchY    = 0;
  };
  
  DispatchComputePerfBenchmark::DispatchComputePerfBenchmark()
      : ANGLERenderTest("DispatchComputePerf", GetParam())
  {}
  
  void DispatchComputePerfBenchmark::initializeBenchmark()
  {
      const auto &params = GetParam();
  
      initComputeShader();
      initTextures();
  
      glUseProgram(mProgram);
      glActiveTexture(GL_TEXTURE0);
      glBindTexture(GL_TEXTURE_2D, mReadTexture);
      glUniform1i(glGetUniformLocation(mProgram, "readTexture"), 0);
      glBindImageTexture(4, mWriteTexture, 0, GL_FALSE, 0, GL_WRITE_ONLY, GL_R32F);
  
      mDispatchX = params.textureWidth / params.localSizeX;
      mDispatchY = params.textureHeight / params.localSizeY;
      ASSERT_GL_NO_ERROR();
  }
  
  void DispatchComputePerfBenchmark::initComputeShader()
  {
      constexpr char kCS[] = R"(#version 310 es
  #define LOCAL_SIZE_X 16
  #define LOCAL_SIZE_Y 16
  layout(local_size_x=LOCAL_SIZE_X, local_size_y=LOCAL_SIZE_Y) in;
  precision highp float;
  uniform sampler2D readTexture;
  layout(r32f, binding = 4) writeonly uniform highp image2D  outImage;
  
  void main() {
      float sum = 0.;
      sum += texelFetch(readTexture, ivec2(gl_GlobalInvocationID.xy), 0).r;
      imageStore(outImage, ivec2(gl_GlobalInvocationID.xy), vec4(sum));
  })";
  
      mProgram = CompileComputeProgram(kCS, false);
      ASSERT_NE(0u, mProgram);
  }
  
  void DispatchComputePerfBenchmark::initTextures()
  {
      const auto &params = GetParam();
  
      unsigned int textureDataSize = params.textureWidth * params.textureHeight;
      std::vector<GLfloat> textureInputData(textureDataSize, 0.2f);
      std::vector<GLfloat> textureOutputData(textureDataSize, 0.1f);
  
      glGenTextures(1, &mReadTexture);
      glBindTexture(GL_TEXTURE_2D, mReadTexture);
      glTexImage2D(GL_TEXTURE_2D, 0, GL_R32F, params.textureWidth, params.textureHeight, 0, GL_RED,
                   GL_FLOAT, textureInputData.data());
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
  
      glGenTextures(1, &mWriteTexture);
      glBindTexture(GL_TEXTURE_2D, mWriteTexture);
      glTexStorage2D(GL_TEXTURE_2D, 1, GL_R32F, params.textureWidth, params.textureHeight);
      glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, params.textureWidth, params.textureHeight, GL_RED,
                      GL_FLOAT, textureOutputData.data());
      ASSERT_GL_NO_ERROR();
  }
  
  void DispatchComputePerfBenchmark::destroyBenchmark()
  {
      glDeleteProgram(mProgram);
      glDeleteTextures(1, &mReadTexture);
      glDeleteTextures(1, &mWriteTexture);
  }
  
  void DispatchComputePerfBenchmark::drawBenchmark()
  {
      const auto &params = GetParam();
      for (unsigned int it = 0; it < params.iterationsPerStep; it++)
      {
          glDispatchCompute(mDispatchX, mDispatchY, 1);
          glMemoryBarrier(GL_TEXTURE_FETCH_BARRIER_BIT);
      }
      ASSERT_GL_NO_ERROR();
  }
  
  DispatchComputePerfParams DispatchComputePerfOpenGLOrGLESParams(bool useNullDevice)
  {
      DispatchComputePerfParams params;
      params.eglParameters = useNullDevice ? angle::egl_platform::OPENGL_OR_GLES_NULL()
                                           : angle::egl_platform::OPENGL_OR_GLES();
      return params;
  }
  
  TEST_P(DispatchComputePerfBenchmark, Run)
  {
      run();
  }
  
  ANGLE_INSTANTIATE_TEST(DispatchComputePerfBenchmark,
                         DispatchComputePerfOpenGLOrGLESParams(true),
                         DispatchComputePerfOpenGLOrGLESParams(false));
  
  }  // namespace
  

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