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

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• Hash : fc5aef40
  Author :
  Date : 2016-12-19T15:23:49
  

  Add a matrix uniforms perf test.
  
  This test also adds a mode which controls if the uniform data changes
  frame-to-frame. Could be useful when we test removing redundant
  data checking.
  
  BUG=angleproject:1385
  BUG=angleproject:1390
  BUG=angleproject:1671
  
  Change-Id: I936702b83f3d7cd97918542b06ecc1372884b412
  Reviewed-on: https://chromium-review.googlesource.com/422348
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/tests/perf_tests/UniformsPerf.cpp

• //
  // Copyright (c) 2016 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.
  //
  // UniformsBenchmark:
  //   Performance test for setting uniform data.
  //
  
  #include "ANGLEPerfTest.h"
  
  #include <iostream>
  #include <random>
  #include <sstream>
  
  #include "Matrix.h"
  #include "shader_utils.h"
  
  using namespace angle;
  
  namespace
  {
  
  // Controls when we call glUniform, if the data is the same as last frame.
  enum DataMode
  {
      UPDATE,
      REPEAT,
  };
  
  // TODO(jmadill): Use an ANGLE enum for this?
  enum DataType
  {
      VEC4,
      MAT4,
  };
  
  struct UniformsParams final : public RenderTestParams
  {
      UniformsParams()
      {
          // Common default params
          majorVersion = 2;
          minorVersion = 0;
          windowWidth  = 720;
          windowHeight = 720;
      }
  
      std::string suffix() const override;
      size_t numVertexUniforms   = 200;
      size_t numFragmentUniforms = 200;
  
      DataType dataType = DataType::VEC4;
      DataMode dataMode = DataMode::REPEAT;
  
      // static parameters
      size_t iterations = 4;
  };
  
  std::ostream &operator<<(std::ostream &os, const UniformsParams &params)
  {
      os << params.suffix().substr(1);
      return os;
  }
  
  std::string UniformsParams::suffix() const
  {
      std::stringstream strstr;
  
      strstr << RenderTestParams::suffix();
  
      if (dataType == DataType::VEC4)
      {
          strstr << "_" << numVertexUniforms << "_vertex_uniforms";
          strstr << "_" << numFragmentUniforms << "_fragment_uniforms";
      }
      else if (dataMode == DataMode::REPEAT)
      {
          strstr << "_matrix_repeating";
      }
      else
      {
          strstr << "_matrix_updating";
      }
  
      return strstr.str();
  }
  
  class UniformsBenchmark : public ANGLERenderTest,
                            public ::testing::WithParamInterface<UniformsParams>
  {
    public:
      UniformsBenchmark();
  
      void initializeBenchmark() override;
      void destroyBenchmark() override;
      void drawBenchmark() override;
  
    private:
      void initShaders();
      void initVertexBuffer();
      void initTextures();
  
      GLuint mProgram;
      std::vector<GLuint> mUniformLocations;
      std::vector<Matrix4> mMatrixData[2];
  };
  
  std::vector<Matrix4> GenMatrixData(size_t count, int parity)
  {
      std::vector<Matrix4> data;
  
      // Very simple matrix data allocation scheme.
      for (size_t index = 0; index < count; ++index)
      {
          Matrix4 mat;
          for (int row = 0; row < 4; ++row)
          {
              for (int col = 0; col < 4; ++col)
              {
                  mat.data[row * 4 + col] = (row * col + parity) % 2 == 0 ? 1.0f : -1.0f;
              }
          }
  
          data.push_back(mat);
      }
  
      return data;
  }
  
  UniformsBenchmark::UniformsBenchmark() : ANGLERenderTest("Uniforms", GetParam()), mProgram(0u)
  {
  }
  
  void UniformsBenchmark::initializeBenchmark()
  {
      const auto &params = GetParam();
  
      ASSERT_GT(params.iterations, 0u);
  
      // Verify the uniform counts are within the limits
      GLint maxVertexUniforms, maxFragmentUniforms;
      glGetIntegerv(GL_MAX_VERTEX_UNIFORM_VECTORS, &maxVertexUniforms);
      glGetIntegerv(GL_MAX_FRAGMENT_UNIFORM_VECTORS, &maxFragmentUniforms);
  
      if (params.numVertexUniforms > static_cast<size_t>(maxVertexUniforms))
      {
          FAIL() << "Vertex uniform count (" << params.numVertexUniforms << ")"
                 << " exceeds maximum vertex uniform count: " << maxVertexUniforms << std::endl;
      }
      if (params.numFragmentUniforms > static_cast<size_t>(maxFragmentUniforms))
      {
          FAIL() << "Fragment uniform count (" << params.numFragmentUniforms << ")"
                 << " exceeds maximum fragment uniform count: " << maxFragmentUniforms << std::endl;
      }
  
      initShaders();
      glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
      glViewport(0, 0, getWindow()->getWidth(), getWindow()->getHeight());
  
      if (params.dataType == DataType::MAT4)
      {
          size_t count = params.numVertexUniforms + params.numFragmentUniforms;
  
          mMatrixData[0] = GenMatrixData(count, 0);
          if (params.dataMode == DataMode::REPEAT)
          {
              mMatrixData[1] = GenMatrixData(count, 0);
          }
          else
          {
              mMatrixData[1] = GenMatrixData(count, 1);
          }
      }
  
      ASSERT_GL_NO_ERROR();
  }
  
  std::string GetUniformLocationName(size_t idx, bool vertexShader)
  {
      std::stringstream strstr;
      strstr << (vertexShader ? "vs" : "fs") << "_u_" << idx;
      return strstr.str();
  }
  
  void UniformsBenchmark::initShaders()
  {
      const auto &params = GetParam();
      bool isMatrix      = (params.dataType == DataType::MAT4);
  
      std::stringstream vstrstr;
      vstrstr << "precision mediump float;\n";
      std::string typeString  = isMatrix ? "mat4" : "vec4";
      std::string constVector = "const vec4 one = vec4(1, 1, 1, 1);\n";
  
      if (isMatrix)
      {
          vstrstr << constVector;
      }
  
      for (size_t i = 0; i < params.numVertexUniforms; i++)
      {
          vstrstr << "uniform " << typeString << " " << GetUniformLocationName(i, true) << ";\n";
      }
  
      vstrstr << "void main()\n"
                 "{\n"
                 "    gl_Position = vec4(0, 0, 0, 0);\n";
      for (size_t i = 0; i < params.numVertexUniforms; i++)
      {
          vstrstr << "    gl_Position += " << GetUniformLocationName(i, true);
          if (isMatrix)
          {
              vstrstr << " * one";
          }
          vstrstr << ";\n";
      }
      vstrstr << "}";
  
      std::stringstream fstrstr;
      fstrstr << "precision mediump float;\n";
  
      if (isMatrix)
      {
          fstrstr << constVector;
      }
  
      for (size_t i = 0; i < params.numFragmentUniforms; i++)
      {
          fstrstr << "uniform " << typeString << " " << GetUniformLocationName(i, false) << ";\n";
      }
      fstrstr << "void main()\n"
                 "{\n"
                 "    gl_FragColor = vec4(0, 0, 0, 0);\n";
      for (size_t i = 0; i < params.numFragmentUniforms; i++)
      {
          fstrstr << "    gl_FragColor += " << GetUniformLocationName(i, false);
          if (isMatrix)
          {
              fstrstr << " * one";
          }
          fstrstr << ";\n";
      }
      fstrstr << "}";
  
      mProgram = CompileProgram(vstrstr.str(), fstrstr.str());
      ASSERT_NE(0u, mProgram);
  
      for (size_t i = 0; i < params.numVertexUniforms; ++i)
      {
          GLint location = glGetUniformLocation(mProgram, GetUniformLocationName(i, true).c_str());
          ASSERT_NE(-1, location);
          mUniformLocations.push_back(location);
      }
      for (size_t i = 0; i < params.numFragmentUniforms; ++i)
      {
          GLint location = glGetUniformLocation(mProgram, GetUniformLocationName(i, false).c_str());
          ASSERT_NE(-1, location);
          mUniformLocations.push_back(location);
      }
  
      // Use the program object
      glUseProgram(mProgram);
  }
  
  void UniformsBenchmark::destroyBenchmark()
  {
      glDeleteProgram(mProgram);
  }
  
  void UniformsBenchmark::drawBenchmark()
  {
      const auto &params = GetParam();
  
      size_t frameIndex = 0;
  
      for (size_t it = 0; it < params.iterations; ++it, frameIndex = (frameIndex == 0 ? 1 : 0))
      {
          for (size_t uniform = 0; uniform < mUniformLocations.size(); ++uniform)
          {
              if (params.dataType == DataType::MAT4)
              {
                  glUniformMatrix4fv(mUniformLocations[uniform], 1, GL_FALSE,
                                     mMatrixData[frameIndex][uniform].data);
              }
              else
              {
                  float value = static_cast<float>(uniform);
                  glUniform4f(mUniformLocations[uniform], value, value, value, value);
              }
          }
  
          glDrawArrays(GL_TRIANGLES, 0, 3);
      }
  
      ASSERT_GL_NO_ERROR();
  }
  
  using namespace egl_platform;
  
  UniformsParams VectorUniforms(const EGLPlatformParameters &egl)
  {
      UniformsParams params;
      params.eglParameters = egl;
      return params;
  }
  
  UniformsParams MatrixUniforms(const EGLPlatformParameters &egl, DataMode dataMode)
  {
      UniformsParams params;
      params.eglParameters = egl;
      params.dataType      = DataType::MAT4;
      params.dataMode      = dataMode;
      return params;
  }
  
  }  // anonymous namespace
  
  TEST_P(UniformsBenchmark, Run)
  {
      run();
  }
  
  ANGLE_INSTANTIATE_TEST(UniformsBenchmark,
                         VectorUniforms(D3D11()),
                         VectorUniforms(D3D9()),
                         VectorUniforms(OPENGL()),
                         MatrixUniforms(D3D11(), DataMode::REPEAT),
                         MatrixUniforms(D3D11(), DataMode::UPDATE),
                         MatrixUniforms(OPENGL(), DataMode::REPEAT),
                         MatrixUniforms(OPENGL(), DataMode::UPDATE));
  

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