EGLWindow.cpp

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Author : Jamie Madill
Date : 2017-07-19 16:15:42
Hash : 222c517f
Message : Control Debug layers in ANGLE_platform_angle. Debug layers seem to be a universal thing among functional back-ends. D3D, OpenGL and Vulkan all need some kind of controls for debugging, so it seems to make sense to make this control part of the base extension. Default the extension to EGL_DONT_CARE, which allows the back-end to have a lot of flexibility in terms of implementation. Also enable the extension in the D3D11 and OpenGL back-ends, and set the extension to enabled for angle_end2end_tests. Remove EGLVulkanEXTTest since it no longer tests anything not tested in the base ANGLETest class. BUG=angleproject:2086 Change-Id: I52d8170effd1846b9afbe6e4052c699fe5cb0de8 Reviewed-on: https://chromium-review.googlesource.com/578369 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
util/EGLWindow.cpp
//
// Copyright (c) 2013 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.
//

#include <string.h>
#include <cassert>
#include <vector>

#include "EGLWindow.h"
#include "OSWindow.h"
#include "common/debug.h"

// TODO(jmadill): Clean this up at some point.
#define EGL_PLATFORM_ANGLE_PLATFORM_METHODS_ANGLEX 0x9999

EGLPlatformParameters::EGLPlatformParameters()
    : renderer(EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE),
      majorVersion(EGL_DONT_CARE),
      minorVersion(EGL_DONT_CARE),
      deviceType(EGL_DONT_CARE),
      presentPath(EGL_DONT_CARE)
{
}

EGLPlatformParameters::EGLPlatformParameters(EGLint renderer)
    : renderer(renderer),
      majorVersion(EGL_DONT_CARE),
      minorVersion(EGL_DONT_CARE),
      deviceType(EGL_DONT_CARE),
      presentPath(EGL_DONT_CARE)
{
    if (renderer == EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE ||
        renderer == EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE)
    {
        deviceType = EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE;
    }
}

EGLPlatformParameters::EGLPlatformParameters(EGLint renderer,
                                             EGLint majorVersion,
                                             EGLint minorVersion,
                                             EGLint useWarp)
    : renderer(renderer),
      majorVersion(majorVersion),
      minorVersion(minorVersion),
      deviceType(useWarp),
      presentPath(EGL_DONT_CARE)
{
}

EGLPlatformParameters::EGLPlatformParameters(EGLint renderer,
                                             EGLint majorVersion,
                                             EGLint minorVersion,
                                             EGLint useWarp,
                                             EGLint presentPath)
    : renderer(renderer),
      majorVersion(majorVersion),
      minorVersion(minorVersion),
      deviceType(useWarp),
      presentPath(presentPath)
{
}

bool operator<(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
{
    if (a.renderer != b.renderer)
    {
        return a.renderer < b.renderer;
    }

    if (a.majorVersion != b.majorVersion)
    {
        return a.majorVersion < b.majorVersion;
    }

    if (a.minorVersion != b.minorVersion)
    {
        return a.minorVersion < b.minorVersion;
    }

    if (a.deviceType != b.deviceType)
    {
        return a.deviceType < b.deviceType;
    }

    return a.presentPath < b.presentPath;
}

bool operator==(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
{
    return (a.renderer == b.renderer) && (a.majorVersion == b.majorVersion) &&
           (a.minorVersion == b.minorVersion) && (a.deviceType == b.deviceType) &&
           (a.presentPath == b.presentPath);
}

EGLWindow::EGLWindow(EGLint glesMajorVersion,
                     EGLint glesMinorVersion,
                     const EGLPlatformParameters &platform)
    : mDisplay(EGL_NO_DISPLAY),
      mSurface(EGL_NO_SURFACE),
      mContext(EGL_NO_CONTEXT),
      mClientMajorVersion(glesMajorVersion),
      mClientMinorVersion(glesMinorVersion),
      mEGLMajorVersion(0),
      mEGLMinorVersion(0),
      mPlatform(platform),
      mRedBits(-1),
      mGreenBits(-1),
      mBlueBits(-1),
      mAlphaBits(-1),
      mDepthBits(-1),
      mStencilBits(-1),
      mComponentType(EGL_COLOR_COMPONENT_TYPE_FIXED_EXT),
      mMultisample(false),
      mDebug(false),
      mNoError(false),
      mWebGLCompatibility(false),
      mBindGeneratesResource(true),
      mClientArraysEnabled(true),
      mRobustResourceInit(),
      mSwapInterval(-1),
      mSamples(-1),
      mDebugLayersEnabled(),
      mContextProgramCacheEnabled(),
      mPlatformMethods(nullptr)
{
}

EGLWindow::~EGLWindow()
{
    destroyGL();
}

void EGLWindow::swap()
{
    eglSwapBuffers(mDisplay, mSurface);
}

EGLConfig EGLWindow::getConfig() const
{
    return mConfig;
}

EGLDisplay EGLWindow::getDisplay() const
{
    return mDisplay;
}

EGLSurface EGLWindow::getSurface() const
{
    return mSurface;
}

EGLContext EGLWindow::getContext() const
{
    return mContext;
}

bool EGLWindow::initializeGL(OSWindow *osWindow)
{
    if (!initializeDisplayAndSurface(osWindow))
        return false;
    return initializeContext();
}

bool EGLWindow::initializeDisplayAndSurface(OSWindow *osWindow)
{
    std::vector<EGLAttrib> displayAttributes;
    displayAttributes.push_back(EGL_PLATFORM_ANGLE_TYPE_ANGLE);
    displayAttributes.push_back(mPlatform.renderer);
    displayAttributes.push_back(EGL_PLATFORM_ANGLE_MAX_VERSION_MAJOR_ANGLE);
    displayAttributes.push_back(mPlatform.majorVersion);
    displayAttributes.push_back(EGL_PLATFORM_ANGLE_MAX_VERSION_MINOR_ANGLE);
    displayAttributes.push_back(mPlatform.minorVersion);

    if (mPlatform.deviceType != EGL_DONT_CARE)
    {
        displayAttributes.push_back(EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE);
        displayAttributes.push_back(mPlatform.deviceType);
    }

    if (mPlatform.presentPath != EGL_DONT_CARE)
    {
        const char *extensionString =
            static_cast<const char *>(eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS));
        if (strstr(extensionString, "EGL_ANGLE_experimental_present_path") == nullptr)
        {
            destroyGL();
            return false;
        }

        displayAttributes.push_back(EGL_EXPERIMENTAL_PRESENT_PATH_ANGLE);
        displayAttributes.push_back(mPlatform.presentPath);
    }

    // Set debug layer settings if requested.
    if (mDebugLayersEnabled.valid())
    {
        displayAttributes.push_back(EGL_PLATFORM_ANGLE_DEBUG_LAYERS_ENABLED_ANGLE);
        displayAttributes.push_back(mDebugLayersEnabled.value() ? EGL_TRUE : EGL_FALSE);
    }

    if (mPlatformMethods)
    {
        static_assert(sizeof(EGLAttrib) == sizeof(mPlatformMethods), "Unexpected pointer size");
        displayAttributes.push_back(EGL_PLATFORM_ANGLE_PLATFORM_METHODS_ANGLEX);
        displayAttributes.push_back(reinterpret_cast<EGLAttrib>(mPlatformMethods));
    }

    if (mRobustResourceInit.valid() &&
        !ClientExtensionEnabled("EGL_ANGLE_display_robust_resource_initialization"))
    {
        // Non-default state requested without the extension present
        destroyGL();
        return false;
    }

    if (mRobustResourceInit.valid())
    {
        displayAttributes.push_back(EGL_DISPLAY_ROBUST_RESOURCE_INITIALIZATION_ANGLE);
        displayAttributes.push_back(mRobustResourceInit.value() ? EGL_TRUE : EGL_FALSE);
    }

    displayAttributes.push_back(EGL_NONE);

    mDisplay = eglGetPlatformDisplay(EGL_PLATFORM_ANGLE_ANGLE,
                                     reinterpret_cast<void *>(osWindow->getNativeDisplay()),
                                     &displayAttributes[0]);
    if (mDisplay == EGL_NO_DISPLAY)
    {
        destroyGL();
        return false;
    }

    if (eglInitialize(mDisplay, &mEGLMajorVersion, &mEGLMinorVersion) == EGL_FALSE)
    {
        destroyGL();
        return false;
    }

    const char *displayExtensions = eglQueryString(mDisplay, EGL_EXTENSIONS);

    std::vector<EGLint> configAttributes = {
        EGL_RED_SIZE,       (mRedBits >= 0) ? mRedBits : EGL_DONT_CARE,
        EGL_GREEN_SIZE,     (mGreenBits >= 0) ? mGreenBits : EGL_DONT_CARE,
        EGL_BLUE_SIZE,      (mBlueBits >= 0) ? mBlueBits : EGL_DONT_CARE,
        EGL_ALPHA_SIZE,     (mAlphaBits >= 0) ? mAlphaBits : EGL_DONT_CARE,
        EGL_DEPTH_SIZE,     (mDepthBits >= 0) ? mDepthBits : EGL_DONT_CARE,
        EGL_STENCIL_SIZE,   (mStencilBits >= 0) ? mStencilBits : EGL_DONT_CARE,
        EGL_SAMPLE_BUFFERS, mMultisample ? 1 : 0,
        EGL_SAMPLES,        (mSamples >= 0) ? mSamples : EGL_DONT_CARE,
    };

    // Add dynamic attributes
    bool hasPixelFormatFloat = strstr(displayExtensions, "EGL_EXT_pixel_format_float") != nullptr;
    if (!hasPixelFormatFloat && mComponentType != EGL_COLOR_COMPONENT_TYPE_FIXED_EXT)
    {
        destroyGL();
        return false;
    }
    if (hasPixelFormatFloat)
    {
        configAttributes.push_back(EGL_COLOR_COMPONENT_TYPE_EXT);
        configAttributes.push_back(mComponentType);
    }

    // Finish the attribute list
    configAttributes.push_back(EGL_NONE);

    if (!FindEGLConfig(mDisplay, configAttributes.data(), &mConfig))
    {
        destroyGL();
        return false;
    }

    eglGetConfigAttrib(mDisplay, mConfig, EGL_RED_SIZE, &mRedBits);
    eglGetConfigAttrib(mDisplay, mConfig, EGL_GREEN_SIZE, &mGreenBits);
    eglGetConfigAttrib(mDisplay, mConfig, EGL_BLUE_SIZE, &mBlueBits);
    eglGetConfigAttrib(mDisplay, mConfig, EGL_ALPHA_SIZE, &mAlphaBits);
    eglGetConfigAttrib(mDisplay, mConfig, EGL_DEPTH_SIZE, &mDepthBits);
    eglGetConfigAttrib(mDisplay, mConfig, EGL_STENCIL_SIZE, &mStencilBits);
    eglGetConfigAttrib(mDisplay, mConfig, EGL_SAMPLES, &mSamples);

    std::vector<EGLint> surfaceAttributes;
    if (strstr(displayExtensions, "EGL_NV_post_sub_buffer") != nullptr)
    {
        surfaceAttributes.push_back(EGL_POST_SUB_BUFFER_SUPPORTED_NV);
        surfaceAttributes.push_back(EGL_TRUE);
    }

    surfaceAttributes.push_back(EGL_NONE);

    mSurface = eglCreateWindowSurface(mDisplay, mConfig, osWindow->getNativeWindow(), &surfaceAttributes[0]);
    if (eglGetError() != EGL_SUCCESS)
    {
        destroyGL();
        return false;
    }
    ASSERT(mSurface != EGL_NO_SURFACE);
    return true;
}

bool EGLWindow::initializeContext()
{
    const char *displayExtensions = eglQueryString(mDisplay, EGL_EXTENSIONS);

    // EGL_KHR_create_context is required to request a ES3+ context.
    bool hasKHRCreateContext = strstr(displayExtensions, "EGL_KHR_create_context") != nullptr;
    if (mClientMajorVersion > 2 && !(mEGLMajorVersion > 1 || mEGLMinorVersion >= 5) &&
        !hasKHRCreateContext)
    {
        destroyGL();
        return false;
    }

    bool hasWebGLCompatibility =
        strstr(displayExtensions, "EGL_ANGLE_create_context_webgl_compatibility") != nullptr;
    if (mWebGLCompatibility && !hasWebGLCompatibility)
    {
        destroyGL();
        return false;
    }

    bool hasBindGeneratesResource =
        strstr(displayExtensions, "EGL_CHROMIUM_create_context_bind_generates_resource") != nullptr;
    if (!mBindGeneratesResource && !hasBindGeneratesResource)
    {
        destroyGL();
        return false;
    }

    bool hasClientArraysExtension =
        strstr(displayExtensions, "EGL_ANGLE_create_context_client_arrays") != nullptr;
    if (!mClientArraysEnabled && !hasClientArraysExtension)
    {
        // Non-default state requested without the extension present
        destroyGL();
        return false;
    }

    bool hasProgramCacheControlExtension =
        strstr(displayExtensions, "EGL_ANGLE_program_cache_control ") != nullptr;
    if (mContextProgramCacheEnabled.valid() && !hasProgramCacheControlExtension)
    {
        destroyGL();
        return false;
    }

    eglBindAPI(EGL_OPENGL_ES_API);
    if (eglGetError() != EGL_SUCCESS)
    {
        destroyGL();
        return false;
    }

    std::vector<EGLint> contextAttributes;
    if (hasKHRCreateContext)
    {
        contextAttributes.push_back(EGL_CONTEXT_MAJOR_VERSION_KHR);
        contextAttributes.push_back(mClientMajorVersion);

        contextAttributes.push_back(EGL_CONTEXT_MINOR_VERSION_KHR);
        contextAttributes.push_back(mClientMinorVersion);

        contextAttributes.push_back(EGL_CONTEXT_OPENGL_DEBUG);
        contextAttributes.push_back(mDebug ? EGL_TRUE : EGL_FALSE);

        // TODO(jmadill): Check for the extension string.
        // bool hasKHRCreateContextNoError = strstr(displayExtensions,
        // "EGL_KHR_create_context_no_error") != nullptr;

        contextAttributes.push_back(EGL_CONTEXT_OPENGL_NO_ERROR_KHR);
        contextAttributes.push_back(mNoError ? EGL_TRUE : EGL_FALSE);

        if (hasWebGLCompatibility)
        {
            contextAttributes.push_back(EGL_CONTEXT_WEBGL_COMPATIBILITY_ANGLE);
            contextAttributes.push_back(mWebGLCompatibility ? EGL_TRUE : EGL_FALSE);
        }

        if (hasBindGeneratesResource)
        {
            contextAttributes.push_back(EGL_CONTEXT_BIND_GENERATES_RESOURCE_CHROMIUM);
            contextAttributes.push_back(mBindGeneratesResource ? EGL_TRUE : EGL_FALSE);
        }

        if (hasClientArraysExtension)
        {
            contextAttributes.push_back(EGL_CONTEXT_CLIENT_ARRAYS_ENABLED_ANGLE);
            contextAttributes.push_back(mClientArraysEnabled ? EGL_TRUE : EGL_FALSE);
        }

        if (mContextProgramCacheEnabled.valid())
        {
            contextAttributes.push_back(EGL_CONTEXT_PROGRAM_BINARY_CACHE_ENABLED_ANGLE);
            contextAttributes.push_back(mContextProgramCacheEnabled.value() ? EGL_TRUE : EGL_FALSE);
        }
    }
    contextAttributes.push_back(EGL_NONE);

    mContext = eglCreateContext(mDisplay, mConfig, nullptr, &contextAttributes[0]);
    if (eglGetError() != EGL_SUCCESS)
    {
        destroyGL();
        return false;
    }

    eglMakeCurrent(mDisplay, mSurface, mSurface, mContext);
    if (eglGetError() != EGL_SUCCESS)
    {
        destroyGL();
        return false;
    }

    if (mSwapInterval != -1)
    {
        eglSwapInterval(mDisplay, mSwapInterval);
    }

    return true;
}

void EGLWindow::destroyGL()
{
    if (mSurface != EGL_NO_SURFACE)
    {
        assert(mDisplay != EGL_NO_DISPLAY);
        eglDestroySurface(mDisplay, mSurface);
        mSurface = EGL_NO_SURFACE;
    }

    if (mContext != EGL_NO_CONTEXT)
    {
        assert(mDisplay != EGL_NO_DISPLAY);
        eglDestroyContext(mDisplay, mContext);
        mContext = EGL_NO_CONTEXT;
    }

    if (mDisplay != EGL_NO_DISPLAY)
    {
        eglMakeCurrent(mDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
        eglTerminate(mDisplay);
        mDisplay = EGL_NO_DISPLAY;
    }
}

bool EGLWindow::isGLInitialized() const
{
    return mSurface != EGL_NO_SURFACE &&
           mContext != EGL_NO_CONTEXT &&
           mDisplay != EGL_NO_DISPLAY;
}

// Find an EGLConfig that is an exact match for the specified attributes. EGL_FALSE is returned if
// the EGLConfig is found.  This indicates that the EGLConfig is not supported.
EGLBoolean EGLWindow::FindEGLConfig(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *config)
{
    EGLint numConfigs = 0;
    eglGetConfigs(dpy, nullptr, 0, &numConfigs);
    std::vector<EGLConfig> allConfigs(numConfigs);
    eglGetConfigs(dpy, allConfigs.data(), static_cast<EGLint>(allConfigs.size()), &numConfigs);

    for (size_t i = 0; i < allConfigs.size(); i++)
    {
        bool matchFound = true;
        for (const EGLint *curAttrib = attrib_list; curAttrib[0] != EGL_NONE; curAttrib += 2)
        {
            if (curAttrib[1] == EGL_DONT_CARE)
            {
                continue;
            }

            EGLint actualValue = EGL_DONT_CARE;
            eglGetConfigAttrib(dpy, allConfigs[i], curAttrib[0], &actualValue);
            if (curAttrib[1] != actualValue)
            {
                matchFound = false;
                break;
            }
        }

        if (matchFound)
        {
            *config = allConfigs[i];
            return EGL_TRUE;
        }
    }

    return EGL_FALSE;
}

void EGLWindow::makeCurrent()
{
    eglMakeCurrent(mDisplay, mSurface, mSurface, mContext);
}

// static
bool EGLWindow::ClientExtensionEnabled(const std::string &extName)
{
    return CheckExtensionExists(eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS), extName);
}

bool CheckExtensionExists(const char *allExtensions, const std::string &extName)
{
    const std::string paddedExtensions = std::string(" ") + allExtensions + std::string(" ");
    return paddedExtensions.find(std::string(" ") + extName + std::string(" ")) !=
           std::string::npos;
}
kc3-lang/angle/util/EGLWindow.cpp

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kc3-lang/angle /util/EGLWindow.cpp
