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

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  • Author : Olli Etuaho
    Date : 2015-12-15 17:54:42
    Hash : 8047f065
    Message : Improve perf testing framework The ANGLERenderTest subclasses have a parameter "iterations". Previously most of these tests would perform iterations^2 iterations, since the looping was done both in ANGLERenderTest and in the individual test classes. Do the looping only in the individual test classes instead. This enables getting rid of separate beginDrawBenchmark() and endDrawBenchmark() functions. Some other unused code is also removed: 1. stepBenchmark function 2. unused parameters to step() This makes the core loop of running tests simpler. The perf testing framework also now has shared logic for deciding when to end a given test. The score calculation for tests is also changed. Instead of reporting just the number of operations done, it is reported relative to the actual run time of the test. This should make the test results more accurate, since run time of the tests may have some variation. It also enables changing the run time of the tests without rebaselining them. In the tests that use GPU, GPU operations are also waited to finish before stopping the timer. BUG=angleproject:1261 TEST=angle_perftests Change-Id: I69e9aad8afd2d9dedd60e144f0a5d4203618feef Reviewed-on: https://chromium-review.googlesource.com/319381 Tryjob-Request: Olli Etuaho <oetuaho@nvidia.com> Tested-by: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Zhenyao Mo <zmo@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 "ANGLEPerfTest.h"

#include <iostream>
#include <sstream>

#include "shader_utils.h"
#include "random_utils.h"

using namespace angle;

namespace
{

struct PointSpritesParams final : public RenderTestParams
{
    PointSpritesParams()
    {
        // Common default params
        majorVersion = 2;
        minorVersion = 0;
        windowWidth = 1280;
        windowHeight = 720;
        iterations   = 100;
        count = 10;
        size = 3.0f;
        numVaryings = 3;
    }

    std::string suffix() const override;

    unsigned int count;
    float size;
    unsigned int numVaryings;

    // static parameters
    unsigned int iterations;
};

std::ostream &operator<<(std::ostream &os, const PointSpritesParams &params)
{
    os << params.suffix().substr(1);
    return os;
}

class PointSpritesBenchmark : public ANGLERenderTest,
                              public ::testing::WithParamInterface<PointSpritesParams>
{
  public:
    PointSpritesBenchmark();

    void initializeBenchmark() override;
    void destroyBenchmark() 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();

    ASSERT_LT(0u, params.iterations);

    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_NE(0u, mProgram);

    // 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);

    GLint positionLocation = glGetAttribLocation(mProgram, "vPosition");
    ASSERT_NE(-1, positionLocation);

    glVertexAttribPointer(positionLocation, 2, GL_FLOAT, GL_FALSE, 0, nullptr);
    glEnableVertexAttribArray(positionLocation);

    // Set the viewport
    glViewport(0, 0, getWindow()->getWidth(), getWindow()->getHeight());

    GLint pointSizeLocation = glGetUniformLocation(mProgram, "uPointSize");
    ASSERT_NE(-1, pointSizeLocation);

    glUniform1f(pointSizeLocation, params.size);

    ASSERT_GL_NO_ERROR();
}

void PointSpritesBenchmark::destroyBenchmark()
{
    glDeleteProgram(mProgram);
    glDeleteBuffers(1, &mBuffer);
}

void PointSpritesBenchmark::drawBenchmark()
{
    glClear(GL_COLOR_BUFFER_BIT);

    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.eglParameters = egl_platform::D3D11();
    return params;
}

PointSpritesParams D3D9Params()
{
    PointSpritesParams params;
    params.eglParameters = egl_platform::D3D9();
    return params;
}

PointSpritesParams OpenGLParams()
{
    PointSpritesParams params;
    params.eglParameters = egl_platform::OPENGL();
    return params;
}

} // namespace

TEST_P(PointSpritesBenchmark, Run)
{
    run();
}

ANGLE_INSTANTIATE_TEST(PointSpritesBenchmark,
                       D3D11Params(), D3D9Params(), OpenGLParams());