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

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• Author : Jamie Madill
  Date : 2015-04-15 14:26:36
  Hash : 304dcde8
  Message : perftests: Use gtest asserts macro helpers. We still were using the old cassert code, with a boolean return value on our initialization code. We can make use of the gtest macros and helpers to check for a successful init or GL errors. BUG=476658 Change-Id: I09cbb3d40748cbeaf530ae8f23fb8a1b07e7611f Reviewed-on: https://chromium-review.googlesource.com/265837 Tested-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Brandon Jones <bajones@chromium.org>

• src/tests/perf_tests/PointSprites.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.
  //
  // PointSpritesBenchmark:
  //   Performance test for ANGLE point sprites.
  //
  
  #include <sstream>
  #include <iostream>
  
  #include "ANGLEPerfTest.h"
  #include "shader_utils.h"
  #include "random_utils.h"
  
  namespace
  {
  
  struct PointSpritesParams final : public RenderTestParams
  {
      std::string suffix() const override;
  
      unsigned int count;
      float size;
      unsigned int numVaryings;
  
      // static parameters
      unsigned int iterations;
  };
  
  class PointSpritesBenchmark : public ANGLERenderTest,
                                public ::testing::WithParamInterface<PointSpritesParams>
  {
    public:
      PointSpritesBenchmark();
  
      void initializeBenchmark() override;
      void destroyBenchmark() override;
      void beginDrawBenchmark() override;
      void drawBenchmark() override;
  
    private:
      GLuint mProgram;
      GLuint mBuffer;
  };
  
  std::string PointSpritesParams::suffix() const
  {
      std::stringstream strstr;
  
      strstr << RenderTestParams::suffix()
             << "_" << count << "_" << size << "px"
             << "_" << numVaryings << "vars";
  
      return strstr.str();
  }
  
  PointSpritesBenchmark::PointSpritesBenchmark()
      : ANGLERenderTest("PointSprites", GetParam())
  {
  }
  
  void PointSpritesBenchmark::initializeBenchmark()
  {
      const auto &params = GetParam();
  
      mDrawIterations = params.iterations;
      ASSERT_TRUE(params.iterations > 0);
  
      std::stringstream vstrstr;
  
      // Verify "numVaryings" is within MAX_VARYINGS limit
      GLint maxVaryings;
      glGetIntegerv(GL_MAX_VARYING_VECTORS, &maxVaryings);
  
      if (params.numVaryings > static_cast<unsigned int>(maxVaryings))
      {
          FAIL() << "Varying count (" << params.numVaryings << ")"
                 << " exceeds maximum varyings: " << maxVaryings << std::endl;
      }
  
      vstrstr << "attribute vec2 vPosition;\n"
                 "uniform float uPointSize;\n";
  
      for (unsigned int varCount = 0; varCount < params.numVaryings; varCount++)
      {
          vstrstr << "varying vec4 v" << varCount << ";\n";
      }
  
      vstrstr << "void main()\n"
                 "{\n";
  
      for (unsigned int varCount = 0; varCount < params.numVaryings; varCount++)
      {
          vstrstr << "    v" << varCount << " = vec4(1.0);\n";
      }
  
      vstrstr << "    gl_Position = vec4(vPosition, 0, 1.0);\n"
                 "    gl_PointSize = uPointSize;\n"
                 "}";
  
      std::stringstream fstrstr;
  
      fstrstr << "precision mediump float;\n";
  
      for (unsigned int varCount = 0; varCount < params.numVaryings; varCount++)
      {
          fstrstr << "varying vec4 v" << varCount << ";\n";
      }
  
      fstrstr << "void main()\n"
                 "{\n"
                 "    vec4 colorOut = vec4(1.0, 0.0, 0.0, 1.0);\n";
  
      for (unsigned int varCount = 0; varCount < params.numVaryings; varCount++)
      {
          fstrstr << "    colorOut.r += v" << varCount << ".r;\n";
      }
  
      fstrstr << "    gl_FragColor = colorOut;\n"
                 "}\n";
  
      mProgram = CompileProgram(vstrstr.str(), fstrstr.str());
      ASSERT_TRUE(mProgram != 0);
  
      // Use the program object
      glUseProgram(mProgram);
  
      glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
  
      std::vector<float> vertexPositions(params.count * 2);
      for (size_t pointIndex = 0; pointIndex < vertexPositions.size(); ++pointIndex)
      {
          vertexPositions[pointIndex] = RandomBetween(-1.0f, 1.0f);
      }
  
      glGenBuffers(1, &mBuffer);
      glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
      glBufferData(GL_ARRAY_BUFFER, vertexPositions.size() * sizeof(float), &vertexPositions[0], GL_STATIC_DRAW);
  
      int positionLocation = glGetAttribLocation(mProgram, "vPosition");
      ASSERT_TRUE(positionLocation != -1);
  
      glVertexAttribPointer(positionLocation, 2, GL_FLOAT, GL_FALSE, 0, NULL);
      glEnableVertexAttribArray(positionLocation);
  
      // Set the viewport
      glViewport(0, 0, getWindow()->getWidth(), getWindow()->getHeight());
  
      int pointSizeLocation = glGetUniformLocation(mProgram, "uPointSize");
      ASSERT_TRUE(pointSizeLocation != -1);
  
      glUniform1f(pointSizeLocation, params.size);
  
      ASSERT_GL_NO_ERROR();
  }
  
  void PointSpritesBenchmark::destroyBenchmark()
  {
      glDeleteProgram(mProgram);
      glDeleteBuffers(1, &mBuffer);
  }
  
  void PointSpritesBenchmark::beginDrawBenchmark()
  {
      // Clear the color buffer
      glClear(GL_COLOR_BUFFER_BIT);
  }
  
  void PointSpritesBenchmark::drawBenchmark()
  {
      const auto &params = GetParam();
  
      for (unsigned int it = 0; it < params.iterations; it++)
      {
          //TODO(jmadill): Indexed point rendering. ANGLE is bad at this.
          glDrawArrays(GL_POINTS, 0, params.count);
      }
  
      ASSERT_GL_NO_ERROR();
  }
  
  PointSpritesParams D3D11Params()
  {
      PointSpritesParams params;
  
      params.glesMajorVersion = 2;
      params.widowWidth = 1280;
      params.windowHeight = 720;
      params.requestedRenderer = EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE;
      params.deviceType = EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE;
  
      params.iterations = 10;
      params.count = 10;
      params.size = 3.0f;
      params.numVaryings = 3;
  
      return params;
  }
  
  PointSpritesParams D3D9Params()
  {
      PointSpritesParams params;
  
      params.glesMajorVersion = 2;
      params.widowWidth = 1280;
      params.windowHeight = 720;
      params.requestedRenderer = EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE;
      params.deviceType = EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE;
  
      params.iterations = 10;
      params.count = 10;
      params.size = 3.0f;
      params.numVaryings = 3;
  
      return params;
  }
  
  } // namespace
  
  TEST_P(PointSpritesBenchmark, Run)
  {
      run();
  }
  
  INSTANTIATE_TEST_CASE_P(Render,
                          PointSpritesBenchmark,
                          ::testing::Values(D3D11Params(), D3D9Params()));