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

• //
  // Copyright (c) 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_UPDATE_BARRIER_BIT);
      }
      ASSERT_GL_NO_ERROR();
  }
  
  DispatchComputePerfParams DispatchComputePerfOpenGLOrGLESParams(bool useNullDevice)
  {
      DispatchComputePerfParams params;
      params.eglParameters = angle::egl_platform::OPENGL_OR_GLES(useNullDevice);
      return params;
  }
  
  TEST_P(DispatchComputePerfBenchmark, Run)
  {
      run();
  }
  
  ANGLE_INSTANTIATE_TEST(DispatchComputePerfBenchmark,
                         DispatchComputePerfOpenGLOrGLESParams(true),
                         DispatchComputePerfOpenGLOrGLESParams(false));
  
  }  // namespace
  

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