ANGLETest.cpp

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Author : Shahbaz Youssefi
Date : 2019-07-25 16:13:02
Hash : 93560ef5
Message : Vulkan: Seamful cube map emulation In GLSL, a cube texture is sampled with one of textureCube* functions. This function takes a 3D coordinate which is a vector from the center of the cube and identifies a direction to sample from. GLES2.0 has the following table that translates this 3D coordinate (Rx, Ry, Rz) to a face and ST coordinates within that face. This table can be found in Section 3.7.5 (Cube Map Texture Selection). A compiler pass is implemented in ANGLE that replaces samplerCube declarations with a sampler2DArray. The textureCube* functions are replaced with the corresponding texture* functions with the translated coordinates according to that table. Gradients provided to textureCubeGrad are translated using the same formulae, which is not precise but the spec specifies this projection to be implementation dependent. Helper invocations enabled through WQM (whole quad mode) cause a nuisance in that the extrapolated varyings used as coordinates in a textureCube call could have a different major axis (and therefore face) from the non-helper invocations that lie within the geometry. subgroupQuadSwap* operations are used in conjunction with gl_HelperInvocation to make sure the helper threads calculate texture UVs in the same face as the non-helper invocations. Bug: angleproject:3300 Bug: angleproject:3240 Bug: angleproject:3243 Bug: angleproject:3732 Change-Id: I0cb6a9b1f2e1e6a392b5baca1c7118ed1c502ccf Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1715977 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
src/tests/test_utils/ANGLETest.cpp
//
// Copyright 2015 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.
//
// ANGLETest:
//   Implementation of common ANGLE testing fixture.
//

#include "ANGLETest.h"

#include "common/platform.h"
#include "gpu_info_util/SystemInfo.h"
#include "util/EGLWindow.h"
#include "util/OSWindow.h"

#if defined(ANGLE_PLATFORM_WINDOWS)
#    include <VersionHelpers.h>
#endif  // defined(ANGLE_PLATFORM_WINDOWS)

namespace angle
{

const GLColorRGB GLColorRGB::black(0u, 0u, 0u);
const GLColorRGB GLColorRGB::blue(0u, 0u, 255u);
const GLColorRGB GLColorRGB::green(0u, 255u, 0u);
const GLColorRGB GLColorRGB::red(255u, 0u, 0u);
const GLColorRGB GLColorRGB::yellow(255u, 255u, 0);

const GLColor GLColor::black            = GLColor(0u, 0u, 0u, 255u);
const GLColor GLColor::blue             = GLColor(0u, 0u, 255u, 255u);
const GLColor GLColor::cyan             = GLColor(0u, 255u, 255u, 255u);
const GLColor GLColor::green            = GLColor(0u, 255u, 0u, 255u);
const GLColor GLColor::red              = GLColor(255u, 0u, 0u, 255u);
const GLColor GLColor::transparentBlack = GLColor(0u, 0u, 0u, 0u);
const GLColor GLColor::white            = GLColor(255u, 255u, 255u, 255u);
const GLColor GLColor::yellow           = GLColor(255u, 255u, 0, 255u);
const GLColor GLColor::magenta          = GLColor(255u, 0u, 255u, 255u);

namespace
{
float ColorNorm(GLubyte channelValue)
{
    return static_cast<float>(channelValue) / 255.0f;
}

GLubyte ColorDenorm(float colorValue)
{
    return static_cast<GLubyte>(colorValue * 255.0f);
}

void TestPlatform_logError(PlatformMethods *platform, const char *errorMessage)
{
    auto *testPlatformContext = static_cast<TestPlatformContext *>(platform->context);
    if (testPlatformContext->ignoreMessages)
        return;

    GTEST_NONFATAL_FAILURE_(errorMessage);

    // Print the stack and stop any crash handling to prevent duplicate reports.
    PrintStackBacktrace();
    TerminateCrashHandler();
}

void TestPlatform_logWarning(PlatformMethods *platform, const char *warningMessage)
{
    auto *testPlatformContext = static_cast<TestPlatformContext *>(platform->context);
    if (testPlatformContext->ignoreMessages)
        return;

    if (testPlatformContext->warningsAsErrors)
    {
        FAIL() << warningMessage;
    }
    else
    {
        std::cerr << "Warning: " << warningMessage << std::endl;
    }
}

void TestPlatform_logInfo(PlatformMethods *platform, const char *infoMessage) {}

void TestPlatform_overrideWorkaroundsD3D(PlatformMethods *platform, FeaturesD3D *featuresD3D)
{
    auto *testPlatformContext = static_cast<TestPlatformContext *>(platform->context);
    if (testPlatformContext->currentTest)
    {
        testPlatformContext->currentTest->overrideWorkaroundsD3D(featuresD3D);
    }
}

void TestPlatform_overrideFeaturesVk(PlatformMethods *platform, FeaturesVk *featuresVulkan)
{
    auto *testPlatformContext = static_cast<TestPlatformContext *>(platform->context);
    if (testPlatformContext->currentTest)
    {
        testPlatformContext->currentTest->overrideFeaturesVk(featuresVulkan);
    }
}

const std::array<Vector3, 6> kQuadVertices = {{
    Vector3(-1.0f, 1.0f, 0.5f),
    Vector3(-1.0f, -1.0f, 0.5f),
    Vector3(1.0f, -1.0f, 0.5f),
    Vector3(-1.0f, 1.0f, 0.5f),
    Vector3(1.0f, -1.0f, 0.5f),
    Vector3(1.0f, 1.0f, 0.5f),
}};

const std::array<Vector3, 4> kIndexedQuadVertices = {{
    Vector3(-1.0f, 1.0f, 0.5f),
    Vector3(-1.0f, -1.0f, 0.5f),
    Vector3(1.0f, -1.0f, 0.5f),
    Vector3(1.0f, 1.0f, 0.5f),
}};

constexpr std::array<GLushort, 6> kIndexedQuadIndices = {{0, 1, 2, 0, 2, 3}};

const char *GetColorName(GLColor color)
{
    if (color == GLColor::red)
    {
        return "Red";
    }

    if (color == GLColor::green)
    {
        return "Green";
    }

    if (color == GLColor::blue)
    {
        return "Blue";
    }

    if (color == GLColor::white)
    {
        return "White";
    }

    if (color == GLColor::black)
    {
        return "Black";
    }

    if (color == GLColor::transparentBlack)
    {
        return "Transparent Black";
    }

    if (color == GLColor::yellow)
    {
        return "Yellow";
    }

    if (color == GLColor::magenta)
    {
        return "Magenta";
    }

    if (color == GLColor::cyan)
    {
        return "Cyan";
    }

    return nullptr;
}

bool ShouldAlwaysForceNewDisplay()
{
    // We prefer to reuse config displays. This is faster and solves a driver issue where creating
    // many displays causes crashes. However this exposes other driver bugs on many other platforms.
    // Conservatively enable the feature only on Windows Intel and NVIDIA for now.
    SystemInfo *systemInfo = GetTestSystemInfo();
    return (!systemInfo || !IsWindows() || systemInfo->hasAMDGPU());
}
}  // anonymous namespace

GLColorRGB::GLColorRGB(const Vector3 &floatColor)
    : R(ColorDenorm(floatColor.x())), G(ColorDenorm(floatColor.y())), B(ColorDenorm(floatColor.z()))
{}

GLColor::GLColor(const Vector4 &floatColor)
    : R(ColorDenorm(floatColor.x())),
      G(ColorDenorm(floatColor.y())),
      B(ColorDenorm(floatColor.z())),
      A(ColorDenorm(floatColor.w()))
{}

GLColor::GLColor(GLuint colorValue) : R(0), G(0), B(0), A(0)
{
    memcpy(&R, &colorValue, sizeof(GLuint));
}

testing::AssertionResult GLColor::ExpectNear(const GLColor &expected, const GLColor &err) const
{
    testing::AssertionResult result(
        abs(int(expected.R) - this->R) <= err.R && abs(int(expected.G) - this->G) <= err.G &&
        abs(int(expected.B) - this->B) <= err.B && abs(int(expected.A) - this->A) <= err.A);
    if (!bool(result))
    {
        result << "Expected " << expected << "+/-" << err << ", was " << *this;
    }
    return result;
}

void CreatePixelCenterWindowCoords(const std::vector<Vector2> &pixelPoints,
                                   int windowWidth,
                                   int windowHeight,
                                   std::vector<Vector3> *outVertices)
{
    for (Vector2 pixelPoint : pixelPoints)
    {
        outVertices->emplace_back(Vector3((pixelPoint[0] + 0.5f) * 2.0f / windowWidth - 1.0f,
                                          (pixelPoint[1] + 0.5f) * 2.0f / windowHeight - 1.0f,
                                          0.0f));
    }
}

Vector4 GLColor::toNormalizedVector() const
{
    return Vector4(ColorNorm(R), ColorNorm(G), ColorNorm(B), ColorNorm(A));
}

GLColor ReadColor(GLint x, GLint y)
{
    GLColor actual;
    glReadPixels((x), (y), 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &actual.R);
    EXPECT_GL_NO_ERROR();
    return actual;
}

bool operator==(const GLColor &a, const GLColor &b)
{
    return a.R == b.R && a.G == b.G && a.B == b.B && a.A == b.A;
}

bool operator!=(const GLColor &a, const GLColor &b)
{
    return !(a == b);
}

std::ostream &operator<<(std::ostream &ostream, const GLColor &color)
{
    const char *colorName = GetColorName(color);
    if (colorName)
    {
        return ostream << colorName;
    }

    ostream << "(" << static_cast<unsigned int>(color.R) << ", "
            << static_cast<unsigned int>(color.G) << ", " << static_cast<unsigned int>(color.B)
            << ", " << static_cast<unsigned int>(color.A) << ")";
    return ostream;
}

bool operator==(const GLColor32F &a, const GLColor32F &b)
{
    return a.R == b.R && a.G == b.G && a.B == b.B && a.A == b.A;
}

std::ostream &operator<<(std::ostream &ostream, const GLColor32F &color)
{
    ostream << "(" << color.R << ", " << color.G << ", " << color.B << ", " << color.A << ")";
    return ostream;
}

GLColor32F ReadColor32F(GLint x, GLint y)
{
    GLColor32F actual;
    glReadPixels((x), (y), 1, 1, GL_RGBA, GL_FLOAT, &actual.R);
    EXPECT_GL_NO_ERROR();
    return actual;
}
}  // namespace angle

using namespace angle;

PlatformMethods gDefaultPlatformMethods;

namespace
{
TestPlatformContext gPlatformContext;

// After a fixed number of iterations we reset the test window. This works around some driver bugs.
constexpr uint32_t kWindowReuseLimit = 50;

constexpr char kUseConfig[]                = "--use-config=";
constexpr char kSeparateProcessPerConfig[] = "--separate-process-per-config";

bool RunSeparateProcessesForEachConfig(int *argc, char *argv[])
{
    std::vector<const char *> commonArgs;
    for (int argIndex = 0; argIndex < *argc; ++argIndex)
    {
        if (strncmp(argv[argIndex], kSeparateProcessPerConfig, strlen(kSeparateProcessPerConfig)) !=
            0)
        {
            commonArgs.push_back(argv[argIndex]);
        }
    }

    // Force GoogleTest init now so that we hit the test config init in angle_test_instantiate.cpp.
    // After instantiation is finished we can gather a full list of enabled configs. Then we can
    // iterate the list of configs to spawn a child process for each enabled config.
    testing::InitGoogleTest(argc, argv);

    std::vector<std::string> configNames = GetAvailableTestPlatformNames();

    bool success = true;

    for (const std::string &config : configNames)
    {
        std::stringstream strstr;
        strstr << kUseConfig << config;

        std::string configStr = strstr.str();

        std::vector<const char *> childArgs = commonArgs;
        childArgs.push_back(configStr.c_str());

        int exitCode = 0;
        if (!RunApp(childArgs, nullptr, nullptr, &exitCode))
        {
            std::cerr << "Launching child config " << config << " failed.\n";
        }
        else if (exitCode != 0)
        {
            std::cerr << "Child config " << config << " failed with exit code " << exitCode
                      << ".\n";
            success = false;
        }
    }
    return success;
}
}  // anonymous namespace

// static
std::array<Vector3, 6> ANGLETestBase::GetQuadVertices()
{
    return kQuadVertices;
}

// static
std::array<GLushort, 6> ANGLETestBase::GetQuadIndices()
{
    return kIndexedQuadIndices;
}

// static
std::array<Vector3, 4> ANGLETestBase::GetIndexedQuadVertices()
{
    return kIndexedQuadVertices;
}

ANGLETestBase::ANGLETestBase(const PlatformParameters &params)
    : mWidth(16),
      mHeight(16),
      mIgnoreD3D11SDKLayersWarnings(false),
      mQuadVertexBuffer(0),
      mQuadIndexBuffer(0),
      m2DTexturedQuadProgram(0),
      m3DTexturedQuadProgram(0),
      mDeferContextInit(false),
      mAlwaysForceNewDisplay(ShouldAlwaysForceNewDisplay()),
      mForceNewDisplay(mAlwaysForceNewDisplay),
      mSetUpCalled(false),
      mTearDownCalled(false),
      mCurrentParams(nullptr),
      mFixture(nullptr)
{
    // Override the default platform methods with the ANGLE test methods pointer.
    PlatformParameters withMethods            = params;
    withMethods.eglParameters.platformMethods = &gDefaultPlatformMethods;

    auto iter = gFixtures.find(withMethods);
    if (iter != gFixtures.end())
    {
        mCurrentParams = &iter->first;

        if (!params.noFixture)
        {
            mFixture = &iter->second;
            mFixture->configParams.reset();
        }
        return;
    }

    TestFixture platform;
    auto insertIter = gFixtures.emplace(withMethods, platform);
    mCurrentParams  = &insertIter.first->first;

    if (!params.noFixture)
    {
        mFixture = &insertIter.first->second;
        initOSWindow();
    }
}

void ANGLETestBase::initOSWindow()
{
    std::stringstream windowNameStream;
    windowNameStream << "ANGLE Tests - " << *mCurrentParams;
    std::string windowName = windowNameStream.str();

    if (mAlwaysForceNewDisplay)
    {
        mFixture->osWindow = mOSWindowSingleton;
    }

    if (!mFixture->osWindow)
    {
        mFixture->osWindow = OSWindow::New();
        if (!mFixture->osWindow->initialize(windowName.c_str(), 128, 128))
        {
            std::cerr << "Failed to initialize OS Window.";
        }

        mOSWindowSingleton = mFixture->osWindow;
    }

    // On Linux we must keep the test windows visible. On Windows it doesn't seem to need it.
    mFixture->osWindow->setVisible(!IsWindows());

    switch (mCurrentParams->driver)
    {
        case GLESDriverType::AngleEGL:
        {
            mFixture->eglWindow =
                EGLWindow::New(mCurrentParams->majorVersion, mCurrentParams->minorVersion);
            break;
        }

        case GLESDriverType::SystemEGL:
        {
            std::cerr << "Unsupported driver." << std::endl;
            break;
        }

        case GLESDriverType::SystemWGL:
        {
            // WGL tests are currently disabled.
            std::cerr << "Unsupported driver." << std::endl;
            break;
        }
    }
}

ANGLETestBase::~ANGLETestBase()
{
    if (mQuadVertexBuffer)
    {
        glDeleteBuffers(1, &mQuadVertexBuffer);
    }
    if (mQuadIndexBuffer)
    {
        glDeleteBuffers(1, &mQuadIndexBuffer);
    }
    if (m2DTexturedQuadProgram)
    {
        glDeleteProgram(m2DTexturedQuadProgram);
    }
    if (m3DTexturedQuadProgram)
    {
        glDeleteProgram(m3DTexturedQuadProgram);
    }

    if (!mSetUpCalled)
    {
        GTEST_NONFATAL_FAILURE_("SetUp not called.");
    }

    if (!mTearDownCalled)
    {
        GTEST_NONFATAL_FAILURE_("TearDown not called.");
    }
}

void ANGLETestBase::ANGLETestSetUp()
{
    mSetUpCalled = true;

    InitCrashHandler();

    gDefaultPlatformMethods.overrideWorkaroundsD3D = TestPlatform_overrideWorkaroundsD3D;
    gDefaultPlatformMethods.overrideFeaturesVk     = TestPlatform_overrideFeaturesVk;
    gDefaultPlatformMethods.logError               = TestPlatform_logError;
    gDefaultPlatformMethods.logWarning             = TestPlatform_logWarning;
    gDefaultPlatformMethods.logInfo                = TestPlatform_logInfo;
    gDefaultPlatformMethods.context                = &gPlatformContext;

    gPlatformContext.ignoreMessages   = false;
    gPlatformContext.warningsAsErrors = false;
    gPlatformContext.currentTest      = this;

    if (IsWindows())
    {
        const auto &info = testing::UnitTest::GetInstance()->current_test_info();
        WriteDebugMessage("Entering %s.%s\n", info->test_case_name(), info->name());
    }

    if (mCurrentParams->noFixture)
    {
#if defined(ANGLE_USE_UTIL_LOADER)
        PFNEGLGETPROCADDRESSPROC getProcAddress;
        ANGLETestEnvironment::GetEGLLibrary()->getAs("eglGetProcAddress", &getProcAddress);
        ASSERT_NE(nullptr, getProcAddress);

        LoadEGL(getProcAddress);
        LoadGLES(getProcAddress);
#endif  // defined(ANGLE_USE_UTIL_LOADER)
        return;
    }

    // Resize the window before creating the context so that the first make current
    // sets the viewport and scissor box to the right size.
    bool needSwap = false;
    if (mFixture->osWindow->getWidth() != mWidth || mFixture->osWindow->getHeight() != mHeight)
    {
        if (!mFixture->osWindow->resize(mWidth, mHeight))
        {
            FAIL() << "Failed to resize ANGLE test window.";
        }
        needSwap = true;
    }

    // WGL tests are currently disabled.
    if (mFixture->wglWindow)
    {
        FAIL() << "Unsupported driver.";
    }
    else
    {
        if (mForceNewDisplay || !mFixture->eglWindow->isDisplayInitialized())
        {
            mFixture->eglWindow->destroyGL();
            if (!mFixture->eglWindow->initializeDisplay(mFixture->osWindow,
                                                        ANGLETestEnvironment::GetEGLLibrary(),
                                                        mCurrentParams->eglParameters))
            {
                FAIL() << "EGL Display init failed.";
            }
        }
        else if (mCurrentParams->eglParameters != mFixture->eglWindow->getPlatform())
        {
            FAIL() << "Internal parameter conflict error.";
        }

        if (!mFixture->eglWindow->initializeSurface(
                mFixture->osWindow, ANGLETestEnvironment::GetEGLLibrary(), mFixture->configParams))
        {
            FAIL() << "egl surface init failed.";
        }

        if (!mDeferContextInit && !mFixture->eglWindow->initializeContext())
        {
            FAIL() << "GL Context init failed.";
        }
    }

    if (needSwap)
    {
        // Swap the buffers so that the default framebuffer picks up the resize
        // which will allow follow-up test code to assume the framebuffer covers
        // the whole window.
        swapBuffers();
    }

    // This Viewport command is not strictly necessary but we add it so that programs
    // taking OpenGL traces can guess the size of the default framebuffer and show it
    // in their UIs
    glViewport(0, 0, mWidth, mHeight);
}

void ANGLETestBase::ANGLETestTearDown()
{
    mTearDownCalled              = true;
    gPlatformContext.currentTest = nullptr;

    if (IsWindows())
    {
        const testing::TestInfo *info = testing::UnitTest::GetInstance()->current_test_info();
        WriteDebugMessage("Exiting %s.%s\n", info->test_case_name(), info->name());
    }

    if (mCurrentParams->noFixture)
    {
        return;
    }

    swapBuffers();
    mFixture->osWindow->messageLoop();

    if (mFixture->eglWindow)
    {
        checkD3D11SDKLayersMessages();
    }

    if (mFixture->reuseCounter++ >= kWindowReuseLimit || mForceNewDisplay)
    {
        mFixture->reuseCounter = 0;
        getGLWindow()->destroyGL();
    }
    else
    {
        mFixture->eglWindow->destroyContext();
        mFixture->eglWindow->destroySurface();
    }

    TerminateCrashHandler();

    // Check for quit message
    Event myEvent;
    while (mFixture->osWindow->popEvent(&myEvent))
    {
        if (myEvent.Type == Event::EVENT_CLOSED)
        {
            exit(0);
        }
    }
}

void ANGLETestBase::swapBuffers()
{
    if (getGLWindow()->isGLInitialized())
    {
        getGLWindow()->swap();

        if (mFixture->eglWindow)
        {
            EXPECT_EGL_SUCCESS();
        }
    }
}

void ANGLETestBase::setupQuadVertexBuffer(GLfloat positionAttribZ, GLfloat positionAttribXYScale)
{
    if (mQuadVertexBuffer == 0)
    {
        glGenBuffers(1, &mQuadVertexBuffer);
    }

    auto quadVertices = GetQuadVertices();
    for (Vector3 &vertex : quadVertices)
    {
        vertex.x() *= positionAttribXYScale;
        vertex.y() *= positionAttribXYScale;
        vertex.z() = positionAttribZ;
    }

    glBindBuffer(GL_ARRAY_BUFFER, mQuadVertexBuffer);
    glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * 3 * 6, quadVertices.data(), GL_STATIC_DRAW);
}

void ANGLETestBase::setupIndexedQuadVertexBuffer(GLfloat positionAttribZ,
                                                 GLfloat positionAttribXYScale)
{
    if (mQuadVertexBuffer == 0)
    {
        glGenBuffers(1, &mQuadVertexBuffer);
    }

    auto quadVertices = kIndexedQuadVertices;
    for (Vector3 &vertex : quadVertices)
    {
        vertex.x() *= positionAttribXYScale;
        vertex.y() *= positionAttribXYScale;
        vertex.z() = positionAttribZ;
    }

    glBindBuffer(GL_ARRAY_BUFFER, mQuadVertexBuffer);
    glBufferData(GL_ARRAY_BUFFER, sizeof(GLfloat) * 3 * 4, quadVertices.data(), GL_STATIC_DRAW);
}

void ANGLETestBase::setupIndexedQuadIndexBuffer()
{
    if (mQuadIndexBuffer == 0)
    {
        glGenBuffers(1, &mQuadIndexBuffer);
    }

    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mQuadIndexBuffer);
    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(kIndexedQuadIndices), kIndexedQuadIndices.data(),
                 GL_STATIC_DRAW);
}

// static
void ANGLETestBase::drawQuad(GLuint program,
                             const std::string &positionAttribName,
                             GLfloat positionAttribZ)
{
    drawQuad(program, positionAttribName, positionAttribZ, 1.0f);
}

// static
void ANGLETestBase::drawQuad(GLuint program,
                             const std::string &positionAttribName,
                             GLfloat positionAttribZ,
                             GLfloat positionAttribXYScale)
{
    drawQuad(program, positionAttribName, positionAttribZ, positionAttribXYScale, false);
}

void ANGLETestBase::drawQuad(GLuint program,
                             const std::string &positionAttribName,
                             GLfloat positionAttribZ,
                             GLfloat positionAttribXYScale,
                             bool useVertexBuffer)
{
    drawQuad(program, positionAttribName, positionAttribZ, positionAttribXYScale, useVertexBuffer,
             false, 0u);
}

void ANGLETestBase::drawQuadInstanced(GLuint program,
                                      const std::string &positionAttribName,
                                      GLfloat positionAttribZ,
                                      GLfloat positionAttribXYScale,
                                      bool useVertexBuffer,
                                      GLuint numInstances)
{
    drawQuad(program, positionAttribName, positionAttribZ, positionAttribXYScale, useVertexBuffer,
             true, numInstances);
}

void ANGLETestBase::drawQuad(GLuint program,
                             const std::string &positionAttribName,
                             GLfloat positionAttribZ,
                             GLfloat positionAttribXYScale,
                             bool useVertexBuffer,
                             bool useInstancedDrawCalls,
                             GLuint numInstances)
{
    GLint previousProgram = 0;
    glGetIntegerv(GL_CURRENT_PROGRAM, &previousProgram);
    if (previousProgram != static_cast<GLint>(program))
    {
        glUseProgram(program);
    }

    GLint previousBuffer = 0;
    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &previousBuffer);

    GLint positionLocation = glGetAttribLocation(program, positionAttribName.c_str());

    std::array<Vector3, 6> quadVertices;

    if (useVertexBuffer)
    {
        setupQuadVertexBuffer(positionAttribZ, positionAttribXYScale);
        glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
        glBindBuffer(GL_ARRAY_BUFFER, previousBuffer);
    }
    else
    {
        quadVertices = GetQuadVertices();
        for (Vector3 &vertex : quadVertices)
        {
            vertex.x() *= positionAttribXYScale;
            vertex.y() *= positionAttribXYScale;
            vertex.z() = positionAttribZ;
        }

        if (previousBuffer != 0)
        {
            glBindBuffer(GL_ARRAY_BUFFER, 0);
        }
        glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, quadVertices.data());
        if (previousBuffer != 0)
        {
            glBindBuffer(GL_ARRAY_BUFFER, previousBuffer);
        }
    }
    glEnableVertexAttribArray(positionLocation);

    if (useInstancedDrawCalls)
    {
        glDrawArraysInstanced(GL_TRIANGLES, 0, 6, numInstances);
    }
    else
    {
        glDrawArrays(GL_TRIANGLES, 0, 6);
    }

    glDisableVertexAttribArray(positionLocation);
    glVertexAttribPointer(positionLocation, 4, GL_FLOAT, GL_FALSE, 0, nullptr);

    if (previousProgram != static_cast<GLint>(program))
    {
        glUseProgram(previousProgram);
    }
}

void ANGLETestBase::drawIndexedQuad(GLuint program,
                                    const std::string &positionAttribName,
                                    GLfloat positionAttribZ)
{
    drawIndexedQuad(program, positionAttribName, positionAttribZ, 1.0f);
}

void ANGLETestBase::drawIndexedQuad(GLuint program,
                                    const std::string &positionAttribName,
                                    GLfloat positionAttribZ,
                                    GLfloat positionAttribXYScale)
{
    drawIndexedQuad(program, positionAttribName, positionAttribZ, positionAttribXYScale, false);
}

void ANGLETestBase::drawIndexedQuad(GLuint program,
                                    const std::string &positionAttribName,
                                    GLfloat positionAttribZ,
                                    GLfloat positionAttribXYScale,
                                    bool useIndexBuffer)
{
    drawIndexedQuad(program, positionAttribName, positionAttribZ, positionAttribXYScale,
                    useIndexBuffer, false);
}

void ANGLETestBase::drawIndexedQuad(GLuint program,
                                    const std::string &positionAttribName,
                                    GLfloat positionAttribZ,
                                    GLfloat positionAttribXYScale,
                                    bool useIndexBuffer,
                                    bool restrictedRange)
{
    GLint positionLocation = glGetAttribLocation(program, positionAttribName.c_str());

    GLint activeProgram = 0;
    glGetIntegerv(GL_CURRENT_PROGRAM, &activeProgram);
    if (static_cast<GLuint>(activeProgram) != program)
    {
        glUseProgram(program);
    }

    GLuint prevCoordBinding = 0;
    glGetIntegerv(GL_ARRAY_BUFFER_BINDING, reinterpret_cast<GLint *>(&prevCoordBinding));

    setupIndexedQuadVertexBuffer(positionAttribZ, positionAttribXYScale);

    glVertexAttribPointer(positionLocation, 3, GL_FLOAT, GL_FALSE, 0, nullptr);
    glEnableVertexAttribArray(positionLocation);
    glBindBuffer(GL_ARRAY_BUFFER, prevCoordBinding);

    GLuint prevIndexBinding = 0;
    const GLvoid *indices;
    if (useIndexBuffer)
    {
        glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING,
                      reinterpret_cast<GLint *>(&prevIndexBinding));

        setupIndexedQuadIndexBuffer();
        indices = 0;
    }
    else
    {
        indices = kIndexedQuadIndices.data();
    }

    if (!restrictedRange)
    {
        glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices);
    }
    else
    {
        glDrawRangeElements(GL_TRIANGLES, 0, 3, 6, GL_UNSIGNED_SHORT, indices);
    }

    if (useIndexBuffer)
    {
        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, prevIndexBinding);
    }

    glDisableVertexAttribArray(positionLocation);
    glVertexAttribPointer(positionLocation, 4, GL_FLOAT, GL_FALSE, 0, nullptr);

    if (static_cast<GLuint>(activeProgram) != program)
    {
        glUseProgram(static_cast<GLuint>(activeProgram));
    }
}

GLuint ANGLETestBase::get2DTexturedQuadProgram()
{
    if (m2DTexturedQuadProgram)
    {
        return m2DTexturedQuadProgram;
    }

    constexpr char kVS[] =
        "attribute vec2 position;\n"
        "varying mediump vec2 texCoord;\n"
        "void main()\n"
        "{\n"
        "    gl_Position = vec4(position, 0, 1);\n"
        "    texCoord = position * 0.5 + vec2(0.5);\n"
        "}\n";

    constexpr char kFS[] =
        "varying mediump vec2 texCoord;\n"
        "uniform sampler2D tex;\n"
        "void main()\n"
        "{\n"
        "    gl_FragColor = texture2D(tex, texCoord);\n"
        "}\n";

    m2DTexturedQuadProgram = CompileProgram(kVS, kFS);
    return m2DTexturedQuadProgram;
}

GLuint ANGLETestBase::get3DTexturedQuadProgram()
{
    if (m3DTexturedQuadProgram)
    {
        return m3DTexturedQuadProgram;
    }

    constexpr char kVS[] = R"(#version 300 es
in vec2 position;
out vec2 texCoord;
void main()
{
    gl_Position = vec4(position, 0, 1);
    texCoord = position * 0.5 + vec2(0.5);
})";

    constexpr char kFS[] = R"(#version 300 es
precision highp float;

in vec2 texCoord;
out vec4 my_FragColor;

uniform highp sampler3D tex;
uniform float u_layer;

void main()
{
    my_FragColor = texture(tex, vec3(texCoord, u_layer));
})";

    m3DTexturedQuadProgram = CompileProgram(kVS, kFS);
    return m3DTexturedQuadProgram;
}

void ANGLETestBase::draw2DTexturedQuad(GLfloat positionAttribZ,
                                       GLfloat positionAttribXYScale,
                                       bool useVertexBuffer)
{
    ASSERT_NE(0u, get2DTexturedQuadProgram());
    drawQuad(get2DTexturedQuadProgram(), "position", positionAttribZ, positionAttribXYScale,
             useVertexBuffer);
}

void ANGLETestBase::draw3DTexturedQuad(GLfloat positionAttribZ,
                                       GLfloat positionAttribXYScale,
                                       bool useVertexBuffer,
                                       float layer)
{
    GLuint program = get3DTexturedQuadProgram();
    ASSERT_NE(0u, program);
    GLint activeProgram = 0;
    glGetIntegerv(GL_CURRENT_PROGRAM, &activeProgram);
    if (static_cast<GLuint>(activeProgram) != program)
    {
        glUseProgram(program);
    }
    glUniform1f(glGetUniformLocation(program, "u_layer"), layer);

    drawQuad(program, "position", positionAttribZ, positionAttribXYScale, useVertexBuffer);

    if (static_cast<GLuint>(activeProgram) != program)
    {
        glUseProgram(static_cast<GLuint>(activeProgram));
    }
}

void ANGLETestBase::checkD3D11SDKLayersMessages()
{
#if defined(ANGLE_PLATFORM_WINDOWS)
    // On Windows D3D11, check ID3D11InfoQueue to see if any D3D11 SDK Layers messages
    // were outputted by the test. We enable the Debug layers in Release tests as well.
    if (mIgnoreD3D11SDKLayersWarnings ||
        mFixture->eglWindow->getPlatform().renderer != EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE ||
        mFixture->eglWindow->getDisplay() == EGL_NO_DISPLAY)
    {
        return;
    }

    const char *extensionString = static_cast<const char *>(
        eglQueryString(mFixture->eglWindow->getDisplay(), EGL_EXTENSIONS));
    if (!extensionString)
    {
        std::cout << "Error getting extension string from EGL Window." << std::endl;
        return;
    }

    if (!strstr(extensionString, "EGL_EXT_device_query"))
    {
        return;
    }

    EGLAttrib device      = 0;
    EGLAttrib angleDevice = 0;

    PFNEGLQUERYDISPLAYATTRIBEXTPROC queryDisplayAttribEXT;
    PFNEGLQUERYDEVICEATTRIBEXTPROC queryDeviceAttribEXT;

    queryDisplayAttribEXT = reinterpret_cast<PFNEGLQUERYDISPLAYATTRIBEXTPROC>(
        eglGetProcAddress("eglQueryDisplayAttribEXT"));
    queryDeviceAttribEXT = reinterpret_cast<PFNEGLQUERYDEVICEATTRIBEXTPROC>(
        eglGetProcAddress("eglQueryDeviceAttribEXT"));
    ASSERT_NE(nullptr, queryDisplayAttribEXT);
    ASSERT_NE(nullptr, queryDeviceAttribEXT);

    ASSERT_EGL_TRUE(
        queryDisplayAttribEXT(mFixture->eglWindow->getDisplay(), EGL_DEVICE_EXT, &angleDevice));
    ASSERT_EGL_TRUE(queryDeviceAttribEXT(reinterpret_cast<EGLDeviceEXT>(angleDevice),
                                         EGL_D3D11_DEVICE_ANGLE, &device));
    ID3D11Device *d3d11Device = reinterpret_cast<ID3D11Device *>(device);

    ID3D11InfoQueue *infoQueue = nullptr;
    HRESULT hr =
        d3d11Device->QueryInterface(__uuidof(infoQueue), reinterpret_cast<void **>(&infoQueue));
    if (SUCCEEDED(hr))
    {
        UINT64 numStoredD3DDebugMessages =
            infoQueue->GetNumStoredMessagesAllowedByRetrievalFilter();

        if (numStoredD3DDebugMessages > 0)
        {
            for (UINT64 i = 0; i < numStoredD3DDebugMessages; i++)
            {
                SIZE_T messageLength = 0;
                hr                   = infoQueue->GetMessage(i, nullptr, &messageLength);

                if (SUCCEEDED(hr))
                {
                    D3D11_MESSAGE *pMessage =
                        reinterpret_cast<D3D11_MESSAGE *>(malloc(messageLength));
                    infoQueue->GetMessage(i, pMessage, &messageLength);

                    std::cout << "Message " << i << ":"
                              << " " << pMessage->pDescription << "\n";
                    free(pMessage);
                }
            }
            // Clear the queue, so that previous failures are not reported
            // for subsequent, otherwise passing, tests
            infoQueue->ClearStoredMessages();

            FAIL() << numStoredD3DDebugMessages
                   << " D3D11 SDK Layers message(s) detected! Test Failed.\n";
        }
    }

    SafeRelease(infoQueue);
#endif  // defined(ANGLE_PLATFORM_WINDOWS)
}

void ANGLETestBase::setWindowWidth(int width)
{
    mWidth = width;
}

void ANGLETestBase::setWindowHeight(int height)
{
    mHeight = height;
}

GLWindowBase *ANGLETestBase::getGLWindow() const
{
    // WGL tests are currently disabled.
    assert(!mFixture->wglWindow);
    return mFixture->eglWindow;
}

void ANGLETestBase::setConfigRedBits(int bits)
{
    mFixture->configParams.redBits = bits;
}

void ANGLETestBase::setConfigGreenBits(int bits)
{
    mFixture->configParams.greenBits = bits;
}

void ANGLETestBase::setConfigBlueBits(int bits)
{
    mFixture->configParams.blueBits = bits;
}

void ANGLETestBase::setConfigAlphaBits(int bits)
{
    mFixture->configParams.alphaBits = bits;
}

void ANGLETestBase::setConfigDepthBits(int bits)
{
    mFixture->configParams.depthBits = bits;
}

void ANGLETestBase::setConfigStencilBits(int bits)
{
    mFixture->configParams.stencilBits = bits;
}

void ANGLETestBase::setConfigComponentType(EGLenum componentType)
{
    mFixture->configParams.componentType = componentType;
}

void ANGLETestBase::setMultisampleEnabled(bool enabled)
{
    mFixture->configParams.multisample = enabled;
}

void ANGLETestBase::setSamples(EGLint samples)
{
    mFixture->configParams.samples = samples;
}

void ANGLETestBase::setDebugEnabled(bool enabled)
{
    mFixture->configParams.debug = enabled;
}

void ANGLETestBase::setNoErrorEnabled(bool enabled)
{
    mFixture->configParams.noError = enabled;
}

void ANGLETestBase::setWebGLCompatibilityEnabled(bool webglCompatibility)
{
    mFixture->configParams.webGLCompatibility = webglCompatibility;
}

void ANGLETestBase::setExtensionsEnabled(bool extensionsEnabled)
{
    mFixture->configParams.extensionsEnabled = extensionsEnabled;
}

void ANGLETestBase::setRobustAccess(bool enabled)
{
    mFixture->configParams.robustAccess = enabled;
}

void ANGLETestBase::setBindGeneratesResource(bool bindGeneratesResource)
{
    mFixture->configParams.bindGeneratesResource = bindGeneratesResource;
}

void ANGLETestBase::setClientArraysEnabled(bool enabled)
{
    mFixture->configParams.clientArraysEnabled = enabled;
}

void ANGLETestBase::setRobustResourceInit(bool enabled)
{
    mFixture->configParams.robustResourceInit = enabled;
}

void ANGLETestBase::setContextProgramCacheEnabled(bool enabled)
{
    mFixture->configParams.contextProgramCacheEnabled = enabled;
}

void ANGLETestBase::setContextResetStrategy(EGLenum resetStrategy)
{
    mFixture->configParams.resetStrategy = resetStrategy;
}

void ANGLETestBase::forceNewDisplay()
{
    mForceNewDisplay = true;
}

void ANGLETestBase::setDeferContextInit(bool enabled)
{
    mDeferContextInit = enabled;
}

int ANGLETestBase::getClientMajorVersion() const
{
    return getGLWindow()->getClientMajorVersion();
}

int ANGLETestBase::getClientMinorVersion() const
{
    return getGLWindow()->getClientMinorVersion();
}

EGLWindow *ANGLETestBase::getEGLWindow() const
{
    return mFixture->eglWindow;
}

int ANGLETestBase::getWindowWidth() const
{
    return mWidth;
}

int ANGLETestBase::getWindowHeight() const
{
    return mHeight;
}

bool ANGLETestBase::isMultisampleEnabled() const
{
    return mFixture->eglWindow->isMultisample();
}

void ANGLETestBase::setWindowVisible(bool isVisible)
{
    mFixture->osWindow->setVisible(isVisible);
}

bool IsAdreno()
{
    std::string rendererString(reinterpret_cast<const char *>(glGetString(GL_RENDERER)));
    return (rendererString.find("Adreno") != std::string::npos);
}

bool IsD3D11()
{
    std::string rendererString(reinterpret_cast<const char *>(glGetString(GL_RENDERER)));
    return (rendererString.find("Direct3D11 vs_5_0") != std::string::npos);
}

bool IsD3D11_FL93()
{
    std::string rendererString(reinterpret_cast<const char *>(glGetString(GL_RENDERER)));
    return (rendererString.find("Direct3D11 vs_4_0_") != std::string::npos);
}

bool IsD3D9()
{
    std::string rendererString(reinterpret_cast<const char *>(glGetString(GL_RENDERER)));
    return (rendererString.find("Direct3D9") != std::string::npos);
}

bool IsD3DSM3()
{
    return IsD3D9() || IsD3D11_FL93();
}

bool IsDesktopOpenGL()
{
    return IsOpenGL() && !IsOpenGLES();
}

bool IsOpenGLES()
{
    std::string rendererString(reinterpret_cast<const char *>(glGetString(GL_RENDERER)));
    return (rendererString.find("OpenGL ES") != std::string::npos);
}

bool IsOpenGL()
{
    std::string rendererString(reinterpret_cast<const char *>(glGetString(GL_RENDERER)));
    return (rendererString.find("OpenGL") != std::string::npos);
}

bool IsNULL()
{
    std::string rendererString(reinterpret_cast<const char *>(glGetString(GL_RENDERER)));
    return (rendererString.find("NULL") != std::string::npos);
}

bool IsVulkan()
{
    const char *renderer = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
    std::string rendererString(renderer);
    return (rendererString.find("Vulkan") != std::string::npos);
}

bool IsDebug()
{
#if !defined(NDEBUG)
    return true;
#else
    return false;
#endif
}

bool IsRelease()
{
    return !IsDebug();
}

ANGLETestBase::TestFixture::TestFixture()  = default;
ANGLETestBase::TestFixture::~TestFixture() = default;

EGLint ANGLETestBase::getPlatformRenderer() const
{
    assert(mFixture->eglWindow);
    return mFixture->eglWindow->getPlatform().renderer;
}

void ANGLETestBase::ignoreD3D11SDKLayersWarnings()
{
    // Some tests may need to disable the D3D11 SDK Layers Warnings checks
    mIgnoreD3D11SDKLayersWarnings = true;
}

void ANGLETestBase::treatPlatformWarningsAsErrors()
{
#if defined(ANGLE_PLATFORM_WINDOWS)
    // Only do warnings-as-errors on 8 and above. We may fall back to the old
    // compiler DLL on Windows 7.
    gPlatformContext.warningsAsErrors = IsWindows8OrGreater();
#endif  // defined(ANGLE_PLATFORM_WINDOWS)
}

ANGLETestBase::ScopedIgnorePlatformMessages::ScopedIgnorePlatformMessages()
{
    gPlatformContext.ignoreMessages = true;
}

ANGLETestBase::ScopedIgnorePlatformMessages::~ScopedIgnorePlatformMessages()
{
    gPlatformContext.ignoreMessages = false;
}

OSWindow *ANGLETestBase::mOSWindowSingleton = nullptr;
std::map<angle::PlatformParameters, ANGLETestBase::TestFixture> ANGLETestBase::gFixtures;
Optional<EGLint> ANGLETestBase::mLastRendererType;

std::unique_ptr<Library> ANGLETestEnvironment::gEGLLibrary;
std::unique_ptr<Library> ANGLETestEnvironment::gWGLLibrary;

void ANGLETestEnvironment::SetUp() {}

void ANGLETestEnvironment::TearDown() {}

Library *ANGLETestEnvironment::GetEGLLibrary()
{
#if defined(ANGLE_USE_UTIL_LOADER)
    if (!gEGLLibrary)
    {
        gEGLLibrary.reset(OpenSharedLibrary(ANGLE_EGL_LIBRARY_NAME, SearchType::ApplicationDir));
    }
#endif  // defined(ANGLE_USE_UTIL_LOADER)
    return gEGLLibrary.get();
}

Library *ANGLETestEnvironment::GetWGLLibrary()
{
#if defined(ANGLE_USE_UTIL_LOADER) && defined(ANGLE_PLATFORM_WINDOWS)
    if (!gWGLLibrary)
    {
        gWGLLibrary.reset(OpenSharedLibrary("opengl32", SearchType::SystemDir));
    }
#endif  // defined(ANGLE_USE_UTIL_LOADER) && defined(ANGLE_PLATFORM_WINDOWS)
    return gWGLLibrary.get();
}

void ANGLEProcessTestArgs(int *argc, char *argv[])
{
    testing::AddGlobalTestEnvironment(new ANGLETestEnvironment());

    for (int argIndex = 1; argIndex < *argc; argIndex++)
    {
        if (strncmp(argv[argIndex], kUseConfig, strlen(kUseConfig)) == 0)
        {
            gSelectedConfig = std::string(argv[argIndex] + strlen(kUseConfig));
        }
        if (strncmp(argv[argIndex], kSeparateProcessPerConfig, strlen(kSeparateProcessPerConfig)) ==
            0)
        {
            gSeparateProcessPerConfig = true;
        }
    }

    if (gSeparateProcessPerConfig)
    {
        if (!gSelectedConfig.empty())
        {
            std::cout << "Cannot use both a single test config and separate processes.\n";
            exit(1);
        }

        if (RunSeparateProcessesForEachConfig(argc, argv))
        {
            exit(0);
        }
        else
        {
            std::cout << "Some subprocesses failed.\n";
            exit(1);
        }
    }
}

bool EnsureGLExtensionEnabled(const std::string &extName)
{
    if (IsGLExtensionEnabled("GL_ANGLE_request_extension") && IsGLExtensionRequestable(extName))
    {
        glRequestExtensionANGLE(extName.c_str());
    }

    return IsGLExtensionEnabled(extName);
}

bool IsEGLClientExtensionEnabled(const std::string &extName)
{
    return CheckExtensionExists(eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS), extName);
}

bool IsEGLDeviceExtensionEnabled(EGLDeviceEXT device, const std::string &extName)
{
    return CheckExtensionExists(eglQueryDeviceStringEXT(device, EGL_EXTENSIONS), extName);
}

bool IsEGLDisplayExtensionEnabled(EGLDisplay display, const std::string &extName)
{
    return CheckExtensionExists(eglQueryString(display, EGL_EXTENSIONS), extName);
}

bool IsGLExtensionEnabled(const std::string &extName)
{
    return CheckExtensionExists(reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS)),
                                extName);
}

bool IsGLExtensionRequestable(const std::string &extName)
{
    return CheckExtensionExists(
        reinterpret_cast<const char *>(glGetString(GL_REQUESTABLE_EXTENSIONS_ANGLE)), extName);
}
kc3-lang/angle/src/tests/test_utils/ANGLETest.cpp

Commit

kc3-lang/angle /src/tests/test_utils/ANGLETest.cpp
