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

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  • Author : Jamie Madill
    Date : 2018-12-29 10:29:33
    Hash : ba319ba3
    Message : 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>

  • src/tests/perf_tests/TexSubImage.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.
//
// TexSubImageBenchmark:
//   Performace test for ANGLE texture updates.
//

#include <sstream>

#include "ANGLEPerfTest.h"
#include "util/shader_utils.h"

using namespace angle;

namespace
{
constexpr unsigned int kIterationsPerStep = 9;

struct TexSubImageParams final : public RenderTestParams
{
    TexSubImageParams()
    {
        iterationsPerStep = kIterationsPerStep;

        // Common default parameters
        majorVersion = 2;
        minorVersion = 0;
        windowWidth  = 512;
        windowHeight = 512;

        imageWidth     = 1024;
        imageHeight    = 1024;
        subImageWidth  = 64;
        subImageHeight = 64;
    }

    std::string suffix() const override;

    // Static parameters
    int imageWidth;
    int imageHeight;
    int subImageWidth;
    int subImageHeight;
};

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

class TexSubImageBenchmark : public ANGLERenderTest,
                             public ::testing::WithParamInterface<TexSubImageParams>
{
  public:
    TexSubImageBenchmark();

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

  private:
    GLuint createTexture();

    // Handle to a program object
    GLuint mProgram;

    // Attribute locations
    GLint mPositionLoc;
    GLint mTexCoordLoc;

    // Sampler location
    GLint mSamplerLoc;

    // Texture handle
    GLuint mTexture;

    // Buffer handle
    GLuint mVertexBuffer;
    GLuint mIndexBuffer;

    GLubyte *mPixels;
};

std::string TexSubImageParams::suffix() const
{
    // TODO(jmadill)
    return RenderTestParams::suffix();
}

TexSubImageBenchmark::TexSubImageBenchmark()
    : ANGLERenderTest("TexSubImage", GetParam()),
      mProgram(0),
      mPositionLoc(-1),
      mTexCoordLoc(-1),
      mSamplerLoc(-1),
      mTexture(0),
      mVertexBuffer(0),
      mIndexBuffer(0),
      mPixels(nullptr)
{
    addExtensionPrerequisite("GL_EXT_texture_storage");
}

GLuint TexSubImageBenchmark::createTexture()
{
    const auto &params = GetParam();

    // Use tightly packed data
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);

    // Generate a texture object
    GLuint texture;
    glGenTextures(1, &texture);

    // Bind the texture object
    glBindTexture(GL_TEXTURE_2D, texture);

    glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8, params.imageWidth, params.imageHeight);

    // Set the filtering mode
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

    return texture;
}

void TexSubImageBenchmark::initializeBenchmark()
{
    const auto &params = GetParam();

    constexpr char kVS[] = R"(attribute vec4 a_position;
attribute vec2 a_texCoord;
varying vec2 v_texCoord;
void main()
{
    gl_Position = a_position;
    v_texCoord  = a_texCoord;
})";

    constexpr char kFS[] = R"(precision mediump float;
varying vec2 v_texCoord;
uniform sampler2D s_texture;
void main()
{
    gl_FragColor = texture2D(s_texture, v_texCoord);
})";

    mProgram = CompileProgram(kVS, kFS);
    ASSERT_NE(0u, mProgram);

    // Get the attribute locations
    mPositionLoc = glGetAttribLocation(mProgram, "a_position");
    mTexCoordLoc = glGetAttribLocation(mProgram, "a_texCoord");

    // Get the sampler location
    mSamplerLoc = glGetUniformLocation(mProgram, "s_texture");

    // Build the vertex buffer
    GLfloat vertices[] = {
        -0.5f, 0.5f,  0.0f,  // Position 0
        0.0f,  0.0f,         // TexCoord 0
        -0.5f, -0.5f, 0.0f,  // Position 1
        0.0f,  1.0f,         // TexCoord 1
        0.5f,  -0.5f, 0.0f,  // Position 2
        1.0f,  1.0f,         // TexCoord 2
        0.5f,  0.5f,  0.0f,  // Position 3
        1.0f,  0.0f          // TexCoord 3
    };

    glGenBuffers(1, &mVertexBuffer);
    glBindBuffer(GL_ARRAY_BUFFER, mVertexBuffer);
    glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);

    GLushort indices[] = {0, 1, 2, 0, 2, 3};
    glGenBuffers(1, &mIndexBuffer);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mIndexBuffer);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);

    // Load the texture
    mTexture = createTexture();

    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);

    mPixels = new GLubyte[params.subImageWidth * params.subImageHeight * 4];

    // Fill the pixels structure with random data:
    for (int y = 0; y < params.subImageHeight; ++y)
    {
        for (int x = 0; x < params.subImageWidth; ++x)
        {
            int offset          = (x + (y * params.subImageWidth)) * 4;
            mPixels[offset + 0] = rand() % 255;  // Red
            mPixels[offset + 1] = rand() % 255;  // Green
            mPixels[offset + 2] = rand() % 255;  // Blue
            mPixels[offset + 3] = 255;           // Alpha
        }
    }

    ASSERT_GL_NO_ERROR();
}

void TexSubImageBenchmark::destroyBenchmark()
{
    glDeleteProgram(mProgram);
    glDeleteBuffers(1, &mVertexBuffer);
    glDeleteBuffers(1, &mIndexBuffer);
    glDeleteTextures(1, &mTexture);
    delete[] mPixels;
}

void TexSubImageBenchmark::drawBenchmark()
{
    // Set the viewport
    glViewport(0, 0, getWindow()->getWidth(), getWindow()->getHeight());

    // Clear the color buffer
    glClear(GL_COLOR_BUFFER_BIT);

    // Use the program object
    glUseProgram(mProgram);

    // Bind the buffers
    glBindBuffer(GL_ARRAY_BUFFER, mVertexBuffer);
    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mIndexBuffer);

    // Load the vertex position
    glVertexAttribPointer(mPositionLoc, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat), 0);
    // Load the texture coordinate
    glVertexAttribPointer(mTexCoordLoc, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(GLfloat),
                          reinterpret_cast<void *>(3 * sizeof(GLfloat)));

    glEnableVertexAttribArray(mPositionLoc);
    glEnableVertexAttribArray(mTexCoordLoc);

    // Bind the texture
    glActiveTexture(GL_TEXTURE0);
    glBindTexture(GL_TEXTURE_2D, mTexture);

    // Set the texture sampler to texture unit to 0
    glUniform1i(mSamplerLoc, 0);

    ASSERT_GL_NO_ERROR();

    const auto &params = GetParam();

    for (unsigned int iteration = 0; iteration < params.iterationsPerStep; ++iteration)
    {
        glTexSubImage2D(GL_TEXTURE_2D, 0, rand() % (params.imageWidth - params.subImageWidth),
                        rand() % (params.imageHeight - params.subImageHeight), params.subImageWidth,
                        params.subImageHeight, GL_RGBA, GL_UNSIGNED_BYTE, mPixels);

        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
    }

    ASSERT_GL_NO_ERROR();
}

TexSubImageParams D3D11Params()
{
    TexSubImageParams params;
    params.eglParameters = egl_platform::D3D11();
    return params;
}

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

TexSubImageParams OpenGLOrGLESParams()
{
    TexSubImageParams params;
    params.eglParameters = egl_platform::OPENGL_OR_GLES(false);
    return params;
}

TexSubImageParams VulkanParams()
{
    TexSubImageParams params;
    params.eglParameters = egl_platform::VULKAN();
    return params;
}

}  // namespace

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

ANGLE_INSTANTIATE_TEST(TexSubImageBenchmark,
                       D3D11Params(),
                       D3D9Params(),
                       OpenGLOrGLESParams(),
                       VulkanParams());