entry_points_egl.cpp

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Author : Courtney Goeltzenleuchter
Date : 2020-08-04 09:06:01
Hash : 3a3d419d
Message : Reference count context to fix ASAN issues Running with ASAN there are several use after free issues because a eglDestroyContext destroys the context right away even though it's in use in other thread(s). Adding reference count to context so that it's not destroyed until all users are done using it. Bug: b/162609728 Change-Id: I00b24b53d760e38ff61dd9ce652a49b1f32f0cd2 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2336447 Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com> Reviewed-by: Tobin Ehlis <tobine@google.com> Reviewed-by: Geoff Lang <geofflang@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org>
src/libGLESv2/entry_points_egl.cpp
//
// Copyright 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.
//

// entry_points_egl.cpp : Implements the EGL entry points.

#include "libGLESv2/entry_points_egl.h"

#include "common/debug.h"
#include "common/utilities.h"
#include "common/version.h"
#include "libANGLE/Context.h"
#include "libANGLE/Display.h"
#include "libANGLE/EGLSync.h"
#include "libANGLE/Surface.h"
#include "libANGLE/Texture.h"
#include "libANGLE/Thread.h"
#include "libANGLE/entry_points_utils.h"
#include "libANGLE/queryutils.h"
#include "libANGLE/validationEGL.h"
#include "libGLESv2/global_state.h"
#include "libGLESv2/proc_table_egl.h"

using namespace egl;

namespace
{

bool CompareProc(const ProcEntry &a, const char *b)
{
    return strcmp(a.first, b) < 0;
}

void ClipConfigs(const std::vector<const Config *> &filteredConfigs,
                 EGLConfig *output_configs,
                 EGLint config_size,
                 EGLint *num_config)
{
    EGLint result_size = static_cast<EGLint>(filteredConfigs.size());
    if (output_configs)
    {
        result_size = std::max(std::min(result_size, config_size), 0);
        for (EGLint i = 0; i < result_size; i++)
        {
            output_configs[i] = const_cast<Config *>(filteredConfigs[i]);
        }
    }
    *num_config = result_size;
}
}  // anonymous namespace

extern "C" {
// EGL 1.0
EGLint EGLAPIENTRY EGL_GetError(void)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    EVENT(__FUNCTION__, "");
    Thread *thread = egl::GetCurrentThread();

    EGLint error = thread->getError();
    thread->setSuccess();
    return error;
}

EGLDisplay EGLAPIENTRY EGL_GetDisplay(EGLNativeDisplayType display_id)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLNativeDisplayType display_id = 0x%016" PRIxPTR, (uintptr_t)display_id);

    return egl::Display::GetDisplayFromNativeDisplay(display_id, AttributeMap());
}

EGLBoolean EGLAPIENTRY EGL_Initialize(EGLDisplay dpy, EGLint *major, EGLint *minor)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLint *major = 0x%016" PRIxPTR
               ", EGLint *minor = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)major, (uintptr_t)minor);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    ANGLE_EGL_TRY_RETURN(thread, ValidateInitialize(display), "eglInitialize",
                         GetDisplayIfValid(display), EGL_FALSE);

    ANGLE_EGL_TRY_RETURN(thread, display->initialize(), "eglInitialize", GetDisplayIfValid(display),
                         EGL_FALSE);

    if (major)
        *major = 1;
    if (minor)
        *minor = 5;

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_Terminate(EGLDisplay dpy)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR, (uintptr_t)dpy);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    ANGLE_EGL_TRY_RETURN(thread, ValidateTerminate(display), "eglTerminate",
                         GetDisplayIfValid(display), EGL_FALSE);

    ANGLE_EGL_TRY_RETURN(thread,
                         display->makeCurrent(thread->getContext(), nullptr, nullptr, nullptr),
                         "eglTerminate", GetDisplayIfValid(display), EGL_FALSE);
    SetContextCurrent(thread, nullptr);
    ANGLE_EGL_TRY_RETURN(thread, display->terminate(thread), "eglTerminate",
                         GetDisplayIfValid(display), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

const char *EGLAPIENTRY EGL_QueryString(EGLDisplay dpy, EGLint name)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLint name = %d", (uintptr_t)dpy, name);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    if (!(display == EGL_NO_DISPLAY && name == EGL_EXTENSIONS))
    {
        ANGLE_EGL_TRY_RETURN(thread, ValidateDisplay(display), "eglQueryString",
                             GetDisplayIfValid(display), nullptr);
    }

    const char *result;
    switch (name)
    {
        case EGL_CLIENT_APIS:
            result = "OpenGL_ES";
            break;
        case EGL_EXTENSIONS:
            if (display == EGL_NO_DISPLAY)
            {
                result = egl::Display::GetClientExtensionString().c_str();
            }
            else
            {
                result = display->getExtensionString().c_str();
            }
            break;
        case EGL_VENDOR:
            result = display->getVendorString().c_str();
            break;
        case EGL_VERSION:
            result = "1.5 (ANGLE " ANGLE_VERSION_STRING ")";
            break;
        default:
            thread->setError(EglBadParameter(), GetDebug(), "eglQueryString",
                             GetDisplayIfValid(display));
            return nullptr;
    }

    thread->setSuccess();
    return result;
}

EGLBoolean EGLAPIENTRY EGL_GetConfigs(EGLDisplay dpy,
                                      EGLConfig *configs,
                                      EGLint config_size,
                                      EGLint *num_config)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig *configs = 0x%016" PRIxPTR
               ", "
               "EGLint config_size = %d, EGLint *num_config = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)configs, config_size, (uintptr_t)num_config);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);

    ANGLE_EGL_TRY_RETURN(thread, ValidateGetConfigs(display, config_size, num_config),
                         "eglGetConfigs", GetDisplayIfValid(display), EGL_FALSE);

    ClipConfigs(display->getConfigs(AttributeMap()), configs, config_size, num_config);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_ChooseConfig(EGLDisplay dpy,
                                        const EGLint *attrib_list,
                                        EGLConfig *configs,
                                        EGLint config_size,
                                        EGLint *num_config)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", const EGLint *attrib_list = 0x%016" PRIxPTR
               ", "
               "EGLConfig *configs = 0x%016" PRIxPTR
               ", EGLint config_size = %d, EGLint *num_config = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)attrib_list, (uintptr_t)configs, config_size,
               (uintptr_t)num_config);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display  = static_cast<egl::Display *>(dpy);
    AttributeMap attribMap = AttributeMap::CreateFromIntArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(thread, ValidateChooseConfig(display, attribMap, config_size, num_config),
                         "eglChooseConfig", GetDisplayIfValid(display), EGL_FALSE);

    ClipConfigs(display->chooseConfig(attribMap), configs, config_size, num_config);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_GetConfigAttrib(EGLDisplay dpy,
                                           EGLConfig config,
                                           EGLint attribute,
                                           EGLint *value)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig config = 0x%016" PRIxPTR
               ", EGLint attribute = %d, EGLint "
               "*value = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)config, attribute, (uintptr_t)value);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Config *configuration = static_cast<Config *>(config);

    ANGLE_EGL_TRY_RETURN(thread, ValidateGetConfigAttrib(display, configuration, attribute),
                         "eglGetConfigAttrib", GetDisplayIfValid(display), EGL_FALSE);

    QueryConfigAttrib(configuration, attribute, value);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLSurface EGLAPIENTRY EGL_CreateWindowSurface(EGLDisplay dpy,
                                               EGLConfig config,
                                               EGLNativeWindowType win,
                                               const EGLint *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig config = 0x%016" PRIxPTR
               ", EGLNativeWindowType win = 0x%016" PRIxPTR
               ", "
               "const EGLint *attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)config, (uintptr_t)win, (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display   = static_cast<egl::Display *>(dpy);
    Config *configuration   = static_cast<Config *>(config);
    AttributeMap attributes = AttributeMap::CreateFromIntArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(thread,
                         ValidateCreateWindowSurface(display, configuration, win, attributes),
                         "eglCreateWindowSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    egl::Surface *surface = nullptr;
    ANGLE_EGL_TRY_RETURN(thread,
                         display->createWindowSurface(configuration, win, attributes, &surface),
                         "eglCreateWindowSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    return static_cast<EGLSurface>(surface);
}

EGLSurface EGLAPIENTRY EGL_CreatePbufferSurface(EGLDisplay dpy,
                                                EGLConfig config,
                                                const EGLint *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig config = 0x%016" PRIxPTR
               ", const EGLint *attrib_list = "
               "0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)config, (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display   = static_cast<egl::Display *>(dpy);
    Config *configuration   = static_cast<Config *>(config);
    AttributeMap attributes = AttributeMap::CreateFromIntArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(thread, ValidateCreatePbufferSurface(display, configuration, attributes),
                         "eglCreatePbufferSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    egl::Surface *surface = nullptr;
    ANGLE_EGL_TRY_RETURN(thread, display->createPbufferSurface(configuration, attributes, &surface),
                         "eglCreatePbufferSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    return static_cast<EGLSurface>(surface);
}

EGLSurface EGLAPIENTRY EGL_CreatePixmapSurface(EGLDisplay dpy,
                                               EGLConfig config,
                                               EGLNativePixmapType pixmap,
                                               const EGLint *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig config = 0x%016" PRIxPTR
               ", EGLNativePixmapType pixmap = "
               "0x%016" PRIxPTR
               ", "
               "const EGLint *attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)config, (uintptr_t)pixmap, (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display   = static_cast<egl::Display *>(dpy);
    Config *configuration   = static_cast<Config *>(config);
    AttributeMap attributes = AttributeMap::CreateFromIntArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(thread,
                         ValidateCreatePixmapSurface(display, configuration, pixmap, attributes),
                         "eglCreatePixmapSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    egl::Surface *surface = nullptr;
    ANGLE_EGL_TRY_RETURN(thread,
                         display->createPixmapSurface(configuration, pixmap, attributes, &surface),
                         "eglCreatePixmapSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    thread->setSuccess();
    return static_cast<EGLSurface>(surface);
}

EGLBoolean EGLAPIENTRY EGL_DestroySurface(EGLDisplay dpy, EGLSurface surface)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface surface = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)surface);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Surface *eglSurface   = static_cast<Surface *>(surface);

    ANGLE_EGL_TRY_RETURN(thread, ValidateDestroySurface(display, eglSurface, surface),
                         "eglDestroySurface", GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    ANGLE_EGL_TRY_RETURN(thread, display->destroySurface(eglSurface), "eglDestroySurface",
                         GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_QuerySurface(EGLDisplay dpy,
                                        EGLSurface surface,
                                        EGLint attribute,
                                        EGLint *value)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface surface = 0x%016" PRIxPTR
               ", EGLint attribute = %d, EGLint "
               "*value = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)surface, attribute, (uintptr_t)value);
    Thread *thread = egl::GetCurrentThread();

    const egl::Display *display = static_cast<const egl::Display *>(dpy);
    const Surface *eglSurface   = static_cast<const Surface *>(surface);

    ANGLE_EGL_TRY_RETURN(thread, ValidateQuerySurface(display, eglSurface, attribute, value),
                         "eglQuerySurface", GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    ANGLE_EGL_TRY_RETURN(thread, QuerySurfaceAttrib(display, eglSurface, attribute, value),
                         "eglQuerySurface", GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLContext EGLAPIENTRY EGL_CreateContext(EGLDisplay dpy,
                                         EGLConfig config,
                                         EGLContext share_context,
                                         const EGLint *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig config = 0x%016" PRIxPTR
               ", EGLContext share_context = %d, "
               "const EGLint *attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)config, CID(dpy, share_context), (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display        = static_cast<egl::Display *>(dpy);
    Config *configuration        = static_cast<Config *>(config);
    gl::Context *sharedGLContext = static_cast<gl::Context *>(share_context);
    AttributeMap attributes      = AttributeMap::CreateFromIntArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(thread,
                         ValidateCreateContext(display, configuration, sharedGLContext, attributes),
                         "eglCreateContext", GetDisplayIfValid(display), EGL_NO_CONTEXT);

    gl::Context *context = nullptr;
    ANGLE_EGL_TRY_RETURN(thread,
                         display->createContext(configuration, sharedGLContext, thread->getAPI(),
                                                attributes, &context),
                         "eglCreateContext", GetDisplayIfValid(display), EGL_NO_CONTEXT);

    thread->setSuccess();
    return static_cast<EGLContext>(context);
}

EGLBoolean EGLAPIENTRY EGL_DestroyContext(EGLDisplay dpy, EGLContext ctx)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLContext ctx = %d", (uintptr_t)dpy,
               CID(dpy, ctx));
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    gl::Context *context  = static_cast<gl::Context *>(ctx);

    ANGLE_EGL_TRY_RETURN(thread, ValidateDestroyContext(display, context, ctx), "eglDestroyContext",
                         GetContextIfValid(display, context), EGL_FALSE);

    bool contextWasCurrent = context == thread->getContext();

    ANGLE_EGL_TRY_RETURN(thread, display->destroyContext(thread, context), "eglDestroyContext",
                         GetContextIfValid(display, context), EGL_FALSE);

    if (contextWasCurrent)
    {
        ANGLE_EGL_TRY_RETURN(thread, display->makeCurrent(context, nullptr, nullptr, nullptr),
                             "eglDestroyContext", GetContextIfValid(display, context), EGL_FALSE);
        SetContextCurrent(thread, nullptr);
    }

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_MakeCurrent(EGLDisplay dpy,
                                       EGLSurface draw,
                                       EGLSurface read,
                                       EGLContext ctx)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface draw = 0x%016" PRIxPTR
               ", EGLSurface read = 0x%016" PRIxPTR
               ", "
               "EGLContext ctx = %d",
               (uintptr_t)dpy, (uintptr_t)draw, (uintptr_t)read, CID(dpy, ctx));
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Surface *drawSurface  = static_cast<Surface *>(draw);
    Surface *readSurface  = static_cast<Surface *>(read);
    gl::Context *context  = static_cast<gl::Context *>(ctx);

    ANGLE_EGL_TRY_RETURN(thread, ValidateMakeCurrent(display, drawSurface, readSurface, context),
                         "eglMakeCurrent", GetContextIfValid(display, context), EGL_FALSE);

    Surface *previousDraw        = thread->getCurrentDrawSurface();
    Surface *previousRead        = thread->getCurrentReadSurface();
    gl::Context *previousContext = thread->getContext();

    // Only call makeCurrent if the context or surfaces have changed.
    if (previousDraw != drawSurface || previousRead != readSurface || previousContext != context)
    {
        ANGLE_EGL_TRY_RETURN(
            thread, display->makeCurrent(previousContext, drawSurface, readSurface, context),
            "eglMakeCurrent", GetContextIfValid(display, context), EGL_FALSE);

        SetContextCurrent(thread, context);
    }

    thread->setSuccess();
    return EGL_TRUE;
}

EGLSurface EGLAPIENTRY EGL_GetCurrentSurface(EGLint readdraw)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLint readdraw = %d", readdraw);
    Thread *thread = egl::GetCurrentThread();

    if (readdraw == EGL_READ)
    {
        thread->setSuccess();
        return thread->getCurrentReadSurface();
    }
    else if (readdraw == EGL_DRAW)
    {
        thread->setSuccess();
        return thread->getCurrentDrawSurface();
    }
    else
    {
        thread->setError(EglBadParameter(), GetDebug(), "eglGetCurrentSurface", nullptr);
        return EGL_NO_SURFACE;
    }
}

EGLDisplay EGLAPIENTRY EGL_GetCurrentDisplay(void)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    EVENT(__FUNCTION__, "");
    Thread *thread = egl::GetCurrentThread();

    thread->setSuccess();
    if (thread->getContext() != nullptr)
    {
        return thread->getContext()->getDisplay();
    }
    return EGL_NO_DISPLAY;
}

EGLBoolean EGLAPIENTRY EGL_QueryContext(EGLDisplay dpy,
                                        EGLContext ctx,
                                        EGLint attribute,
                                        EGLint *value)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR
               ", EGLContext ctx = %d"
               ", EGLint attribute = %d, EGLint *value "
               "= 0x%016" PRIxPTR,
               (uintptr_t)dpy, CID(dpy, ctx), attribute, (uintptr_t)value);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    gl::Context *context  = static_cast<gl::Context *>(ctx);

    ANGLE_EGL_TRY_RETURN(thread, ValidateQueryContext(display, context, attribute, value),
                         "eglQueryContext", GetContextIfValid(display, context), EGL_FALSE);

    QueryContextAttrib(context, attribute, value);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_WaitGL(void)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    EVENT(__FUNCTION__, "");
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = thread->getDisplay();

    ANGLE_EGL_TRY_RETURN(thread, ValidateDisplay(display), "eglWaitGL", GetDisplayIfValid(display),
                         EGL_FALSE);

    // eglWaitGL like calling eglWaitClient with the OpenGL ES API bound. Since we only implement
    // OpenGL ES we can do the call directly.
    ANGLE_EGL_TRY_RETURN(thread, display->waitClient(thread->getContext()), "eglWaitGL",
                         GetDisplayIfValid(display), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_WaitNative(EGLint engine)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLint engine = %d", engine);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = thread->getDisplay();

    ANGLE_EGL_TRY_RETURN(thread, ValidateWaitNative(display, engine), "eglWaitNative",
                         GetThreadIfValid(thread), EGL_FALSE);

    ANGLE_EGL_TRY_RETURN(thread, display->waitNative(thread->getContext(), engine), "eglWaitNative",
                         GetThreadIfValid(thread), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_SwapBuffers(EGLDisplay dpy, EGLSurface surface)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface surface = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)surface);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Surface *eglSurface   = (Surface *)surface;

    ANGLE_EGL_TRY_RETURN(thread, ValidateSwapBuffers(thread, display, eglSurface), "eglSwapBuffers",
                         GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    ANGLE_EGL_TRY_RETURN(thread, eglSurface->swap(thread->getContext()), "eglSwapBuffers",
                         GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_CopyBuffers(EGLDisplay dpy,
                                       EGLSurface surface,
                                       EGLNativePixmapType target)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface surface = 0x%016" PRIxPTR
               ", EGLNativePixmapType target = "
               "0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)surface, (uintptr_t)target);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Surface *eglSurface   = static_cast<Surface *>(surface);

    ANGLE_EGL_TRY_RETURN(thread, ValidateCopyBuffers(display, eglSurface), "eglCopyBuffers",
                         GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    UNIMPLEMENTED();  // FIXME

    thread->setSuccess();
    return 0;
}

// EGL 1.1
EGLBoolean EGLAPIENTRY EGL_BindTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface surface = 0x%016" PRIxPTR
               ", EGLint buffer = %d",
               (uintptr_t)dpy, (uintptr_t)surface, buffer);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display      = static_cast<egl::Display *>(dpy);
    Surface *eglSurface        = static_cast<Surface *>(surface);
    gl::Context *context       = thread->getContext();
    gl::Texture *textureObject = nullptr;

    ANGLE_EGL_TRY_RETURN(
        thread, ValidateBindTexImage(display, eglSurface, surface, buffer, context, &textureObject),
        "eglBindTexImage", GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    if (context)
    {
        ANGLE_EGL_TRY_RETURN(thread, eglSurface->bindTexImage(context, textureObject, buffer),
                             "eglBindTexImage", GetSurfaceIfValid(display, eglSurface), EGL_FALSE);
    }

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_SurfaceAttrib(EGLDisplay dpy,
                                         EGLSurface surface,
                                         EGLint attribute,
                                         EGLint value)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface surface = 0x%016" PRIxPTR
               ", EGLint attribute = %d, EGLint "
               "value = %d",
               (uintptr_t)dpy, (uintptr_t)surface, attribute, value);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Surface *eglSurface   = static_cast<Surface *>(surface);

    ANGLE_EGL_TRY_RETURN(thread, ValidateSurfaceAttrib(display, eglSurface, attribute, value),
                         "eglSurfaceAttrib", GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    SetSurfaceAttrib(eglSurface, attribute, value);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_ReleaseTexImage(EGLDisplay dpy, EGLSurface surface, EGLint buffer)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSurface surface = 0x%016" PRIxPTR
               ", EGLint buffer = %d",
               (uintptr_t)dpy, (uintptr_t)surface, buffer);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Surface *eglSurface   = static_cast<Surface *>(surface);

    ANGLE_EGL_TRY_RETURN(thread, ValidateReleaseTexImage(display, eglSurface, surface, buffer),
                         "eglReleaseTexImage", GetSurfaceIfValid(display, eglSurface), EGL_FALSE);

    gl::Texture *texture = eglSurface->getBoundTexture();

    if (texture)
    {
        ANGLE_EGL_TRY_RETURN(thread, eglSurface->releaseTexImage(thread->getContext(), buffer),
                             "eglReleaseTexImage", GetSurfaceIfValid(display, eglSurface),
                             EGL_FALSE);
    }

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_SwapInterval(EGLDisplay dpy, EGLint interval)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLint interval = %d", (uintptr_t)dpy,
               interval);
    Thread *thread       = egl::GetCurrentThread();
    gl::Context *context = thread->getContext();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Surface *draw_surface = static_cast<Surface *>(thread->getCurrentDrawSurface());

    ANGLE_EGL_TRY_RETURN(thread, ValidateSwapInterval(display, draw_surface, context),
                         "eglSwapInterval", GetDisplayIfValid(display), EGL_FALSE);

    const egl::Config *surfaceConfig = draw_surface->getConfig();
    EGLint clampedInterval           = std::min(std::max(interval, surfaceConfig->minSwapInterval),
                                      surfaceConfig->maxSwapInterval);

    draw_surface->setSwapInterval(clampedInterval);

    thread->setSuccess();
    return EGL_TRUE;
}

// EGL 1.2
EGLBoolean EGLAPIENTRY EGL_BindAPI(EGLenum api)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLenum api = 0x%X", api);
    Thread *thread = egl::GetCurrentThread();

    ANGLE_EGL_TRY_RETURN(thread, ValidateBindAPI(api), "eglBindAPI", GetThreadIfValid(thread),
                         EGL_FALSE);

    thread->setAPI(api);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLenum EGLAPIENTRY EGL_QueryAPI(void)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    EVENT(__FUNCTION__, "");
    Thread *thread = egl::GetCurrentThread();

    EGLenum API = thread->getAPI();

    thread->setSuccess();
    return API;
}

EGLSurface EGLAPIENTRY EGL_CreatePbufferFromClientBuffer(EGLDisplay dpy,
                                                         EGLenum buftype,
                                                         EGLClientBuffer buffer,
                                                         EGLConfig config,
                                                         const EGLint *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR
               ", EGLenum buftype = 0x%X, EGLClientBuffer buffer = 0x%016" PRIxPTR
               ", "
               "EGLConfig config = 0x%016" PRIxPTR ", const EGLint *attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, buftype, (uintptr_t)buffer, (uintptr_t)config,
               (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display   = static_cast<egl::Display *>(dpy);
    Config *configuration   = static_cast<Config *>(config);
    AttributeMap attributes = AttributeMap::CreateFromIntArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(
        thread,
        ValidateCreatePbufferFromClientBuffer(display, buftype, buffer, configuration, attributes),
        "eglCreatePbufferFromClientBuffer", GetDisplayIfValid(display), EGL_NO_SURFACE);

    egl::Surface *surface = nullptr;
    ANGLE_EGL_TRY_RETURN(thread,
                         display->createPbufferFromClientBuffer(configuration, buftype, buffer,
                                                                attributes, &surface),
                         "eglCreatePbufferFromClientBuffer", GetDisplayIfValid(display),
                         EGL_NO_SURFACE);

    return static_cast<EGLSurface>(surface);
}

EGLBoolean EGLAPIENTRY EGL_ReleaseThread(void)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    EVENT(__FUNCTION__, "");
    Thread *thread = egl::GetCurrentThread();

    Surface *previousDraw         = thread->getCurrentDrawSurface();
    Surface *previousRead         = thread->getCurrentReadSurface();
    gl::Context *previousContext  = thread->getContext();
    egl::Display *previousDisplay = thread->getDisplay();

    // Only call makeCurrent if the context or surfaces have changed.
    if (previousDraw != EGL_NO_SURFACE || previousRead != EGL_NO_SURFACE ||
        previousContext != EGL_NO_CONTEXT)
    {
        if (previousDisplay != EGL_NO_DISPLAY)
        {
            ANGLE_EGL_TRY_RETURN(
                thread, previousDisplay->makeCurrent(previousContext, nullptr, nullptr, nullptr),
                "eglReleaseThread", nullptr, EGL_FALSE);
        }

        SetContextCurrent(thread, nullptr);
    }

    thread->setSuccess();
    return EGL_TRUE;
}

EGLBoolean EGLAPIENTRY EGL_WaitClient(void)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    EVENT(__FUNCTION__, "");
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = thread->getDisplay();
    gl::Context *context  = thread->getContext();

    ANGLE_EGL_TRY_RETURN(thread, ValidateDisplay(display), "eglWaitClient",
                         GetContextIfValid(display, context), EGL_FALSE);

    ANGLE_EGL_TRY_RETURN(thread, display->waitClient(context), "eglWaitClient",
                         GetContextIfValid(display, context), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

// EGL 1.4
EGLContext EGLAPIENTRY EGL_GetCurrentContext(void)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    EVENT(__FUNCTION__, "");
    Thread *thread = egl::GetCurrentThread();

    gl::Context *context = thread->getContext();

    thread->setSuccess();
    return static_cast<EGLContext>(context);
}

// EGL 1.5
EGLSync EGLAPIENTRY EGL_CreateSync(EGLDisplay dpy, EGLenum type, const EGLAttrib *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR
               ", EGLenum type = 0x%X, const EGLint* attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, type, (uintptr_t)attrib_list);

    Thread *thread          = egl::GetCurrentThread();
    egl::Display *display   = static_cast<egl::Display *>(dpy);
    AttributeMap attributes = AttributeMap::CreateFromAttribArray(attrib_list);

    gl::Context *currentContext  = thread->getContext();
    egl::Display *currentDisplay = currentContext ? currentContext->getDisplay() : nullptr;

    ANGLE_EGL_TRY_RETURN(
        thread, ValidateCreateSync(display, type, attributes, currentDisplay, currentContext),
        "eglCreateSync", GetDisplayIfValid(display), EGL_NO_SYNC);

    egl::Sync *syncObject = nullptr;
    ANGLE_EGL_TRY_RETURN(thread, display->createSync(currentContext, type, attributes, &syncObject),
                         "eglCreateSync", GetDisplayIfValid(display), EGL_NO_SYNC);

    thread->setSuccess();
    return static_cast<EGLSync>(syncObject);
}

EGLBoolean EGLAPIENTRY EGL_DestroySync(EGLDisplay dpy, EGLSync sync)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSync sync = 0x%016" PRIxPTR, (uintptr_t)dpy,
               (uintptr_t)sync);

    Thread *thread        = egl::GetCurrentThread();
    egl::Display *display = static_cast<egl::Display *>(dpy);
    egl::Sync *syncObject = static_cast<Sync *>(sync);

    ANGLE_EGL_TRY_RETURN(thread, ValidateDestroySync(display, syncObject), "eglDestroySync",
                         GetDisplayIfValid(display), EGL_FALSE);

    display->destroySync(syncObject);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLint EGLAPIENTRY EGL_ClientWaitSync(EGLDisplay dpy, EGLSync sync, EGLint flags, EGLTime timeout)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSync sync = 0x%016" PRIxPTR
               ", EGLint flags = 0x%X, EGLTime timeout = "
               "%llu",
               (uintptr_t)dpy, (uintptr_t)sync, flags, static_cast<unsigned long long>(timeout));

    Thread *thread        = egl::GetCurrentThread();
    egl::Display *display = static_cast<egl::Display *>(dpy);
    egl::Sync *syncObject = static_cast<Sync *>(sync);

    ANGLE_EGL_TRY_RETURN(thread, ValidateClientWaitSync(display, syncObject, flags, timeout),
                         "eglClientWaitSync", GetSyncIfValid(display, syncObject), EGL_FALSE);

    gl::Context *currentContext = thread->getContext();
    EGLint syncStatus           = EGL_FALSE;
    ANGLE_EGL_TRY_RETURN(
        thread, syncObject->clientWait(display, currentContext, flags, timeout, &syncStatus),
        "eglClientWaitSync", GetSyncIfValid(display, syncObject), EGL_FALSE);

    thread->setSuccess();
    return syncStatus;
}

EGLBoolean EGLAPIENTRY EGL_GetSyncAttrib(EGLDisplay dpy,
                                         EGLSync sync,
                                         EGLint attribute,
                                         EGLAttrib *value)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLSync sync = 0x%016" PRIxPTR
               ", EGLint attribute = 0x%X, EGLAttrib "
               "*value = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)sync, attribute, (uintptr_t)value);

    Thread *thread        = egl::GetCurrentThread();
    egl::Display *display = static_cast<egl::Display *>(dpy);
    egl::Sync *syncObject = static_cast<Sync *>(sync);

    ANGLE_EGL_TRY_RETURN(thread, ValidateGetSyncAttrib(display, syncObject, attribute, value),
                         "eglGetSyncAttrib", GetSyncIfValid(display, syncObject), EGL_FALSE);

    EGLint valueExt;
    ANGLE_EGL_TRY_RETURN(thread, GetSyncAttrib(display, syncObject, attribute, &valueExt),
                         "eglGetSyncAttrib", GetSyncIfValid(display, syncObject), EGL_FALSE);
    *value = valueExt;

    thread->setSuccess();
    return EGL_TRUE;
}

EGLImage EGLAPIENTRY EGL_CreateImage(EGLDisplay dpy,
                                     EGLContext ctx,
                                     EGLenum target,
                                     EGLClientBuffer buffer,
                                     const EGLAttrib *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR
               ", EGLContext ctx = %d"
               ", EGLenum target = 0x%X, "
               "EGLClientBuffer buffer = 0x%016" PRIxPTR
               ", const EGLAttrib *attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, CID(dpy, ctx), target, (uintptr_t)buffer, (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display   = static_cast<egl::Display *>(dpy);
    gl::Context *context    = static_cast<gl::Context *>(ctx);
    AttributeMap attributes = AttributeMap::CreateFromIntArray((const EGLint *)attrib_list);

    Error error = ValidateCreateImage(display, context, target, buffer, attributes);
    if (error.isError())
    {
        thread->setError(error, GetDebug(), "eglCreateImage", GetDisplayIfValid(display));
        return EGL_NO_IMAGE;
    }

    Image *image = nullptr;
    error        = display->createImage(context, target, buffer, attributes, &image);
    if (error.isError())
    {
        thread->setError(error, GetDebug(), "eglCreateImage", GetDisplayIfValid(display));
        return EGL_NO_IMAGE;
    }

    thread->setSuccess();
    return static_cast<EGLImage>(image);
}

EGLBoolean EGLAPIENTRY EGL_DestroyImage(EGLDisplay dpy, EGLImage image)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLImage image = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)image);
    Thread *thread        = egl::GetCurrentThread();
    egl::Display *display = static_cast<egl::Display *>(dpy);
    Image *img            = static_cast<Image *>(image);

    Error error = ValidateDestroyImage(display, img);
    if (error.isError())
    {
        thread->setError(error, GetDebug(), "eglDestroyImage", GetImageIfValid(display, img));
        return EGL_FALSE;
    }

    display->destroyImage(img);

    thread->setSuccess();
    return EGL_TRUE;
}

EGLDisplay EGLAPIENTRY EGL_GetPlatformDisplay(EGLenum platform,
                                              void *native_display,
                                              const EGLAttrib *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLenum platform = %d, void* native_display = 0x%016" PRIxPTR
               ", const EGLint* attrib_list = "
               "0x%016" PRIxPTR,
               platform, (uintptr_t)native_display, (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    ANGLE_EGL_TRY_RETURN(thread, ValidateGetPlatformDisplay(platform, native_display, attrib_list),
                         "eglGetPlatformDisplay", GetThreadIfValid(thread), EGL_NO_DISPLAY);

    const auto &attribMap = AttributeMap::CreateFromAttribArray(attrib_list);
    if (platform == EGL_PLATFORM_ANGLE_ANGLE)
    {
        return egl::Display::GetDisplayFromNativeDisplay(
            gl::bitCast<EGLNativeDisplayType>(native_display), attribMap);
    }
    else if (platform == EGL_PLATFORM_DEVICE_EXT)
    {
        Device *eglDevice = static_cast<Device *>(native_display);
        return egl::Display::GetDisplayFromDevice(eglDevice, attribMap);
    }
    else
    {
        UNREACHABLE();
        return EGL_NO_DISPLAY;
    }
}

EGLSurface EGLAPIENTRY EGL_CreatePlatformWindowSurface(EGLDisplay dpy,
                                                       EGLConfig config,
                                                       void *native_window,
                                                       const EGLAttrib *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig config = 0x%016" PRIxPTR
               ", void* native_window = 0x%016" PRIxPTR
               ", "
               "const EGLint* attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)config, (uintptr_t)native_window, (uintptr_t)attrib_list);

    Thread *thread        = egl::GetCurrentThread();
    egl::Display *display = static_cast<egl::Display *>(dpy);

    Config *configuration = static_cast<Config *>(config);
    // Use reinterpret_cast since native_window could be a pointer or an actual value.
    EGLNativeWindowType win = reinterpret_cast<EGLNativeWindowType>(native_window);
    AttributeMap attributes = AttributeMap::CreateFromAttribArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(thread,
                         ValidateCreateWindowSurface(display, configuration, win, attributes),
                         "eglCreateWindowSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    egl::Surface *surface = nullptr;
    ANGLE_EGL_TRY_RETURN(thread,
                         display->createWindowSurface(configuration, win, attributes, &surface),
                         "eglCreateWindowSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    return static_cast<EGLSurface>(surface);
}

EGLSurface EGLAPIENTRY EGL_CreatePlatformPixmapSurface(EGLDisplay dpy,
                                                       EGLConfig config,
                                                       void *native_pixmap,
                                                       const EGLAttrib *attrib_list)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy = 0x%016" PRIxPTR ", EGLConfig config = 0x%016" PRIxPTR
               ", void* native_pixmap = 0x%016" PRIxPTR
               ", "
               "const EGLint* attrib_list = 0x%016" PRIxPTR,
               (uintptr_t)dpy, (uintptr_t)config, (uintptr_t)native_pixmap, (uintptr_t)attrib_list);
    Thread *thread = egl::GetCurrentThread();

    egl::Display *display = static_cast<egl::Display *>(dpy);
    Config *configuration = static_cast<Config *>(config);
    // Use reinterpret_cast since native_window could be a pointer or an actual value.
    EGLNativePixmapType pixmap = reinterpret_cast<EGLNativePixmapType>(native_pixmap);
    AttributeMap attributes    = AttributeMap::CreateFromAttribArray(attrib_list);

    ANGLE_EGL_TRY_RETURN(
        thread, ValidateCreatePixmapSurface(display, configuration, pixmap, attributes),
        "eglCreatePlatformPixmapSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    egl::Surface *surface = nullptr;
    ANGLE_EGL_TRY_RETURN(
        thread, display->createPixmapSurface(configuration, pixmap, attributes, &surface),
        "eglCreatePlatformPixmapSurface", GetDisplayIfValid(display), EGL_NO_SURFACE);

    thread->setSuccess();
    return static_cast<EGLSurface>(surface);
}

EGLBoolean EGLAPIENTRY EGL_WaitSync(EGLDisplay dpy, EGLSync sync, EGLint flags)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("EGLDisplay dpy =0x%016" PRIxPTR "p, EGLSync sync = 0x%016" PRIxPTR
               ", EGLint flags = 0x%X",
               (uintptr_t)dpy, (uintptr_t)sync, flags);

    Thread *thread        = egl::GetCurrentThread();
    egl::Display *display = static_cast<egl::Display *>(dpy);
    gl::Context *context  = thread->getContext();
    egl::Sync *syncObject = static_cast<Sync *>(sync);

    ANGLE_EGL_TRY_RETURN(thread, ValidateWaitSync(display, context, syncObject, flags),
                         "eglWaitSync", GetSyncIfValid(display, syncObject), EGL_FALSE);

    gl::Context *currentContext = thread->getContext();
    ANGLE_EGL_TRY_RETURN(thread, syncObject->serverWait(display, currentContext, flags),
                         "eglWaitSync", GetSyncIfValid(display, syncObject), EGL_FALSE);

    thread->setSuccess();
    return EGL_TRUE;
}

__eglMustCastToProperFunctionPointerType EGLAPIENTRY EGL_GetProcAddress(const char *procname)
{
    ANGLE_SCOPED_GLOBAL_LOCK();
    FUNC_EVENT("const char *procname = \"%s\"", procname);
    Thread *thread = egl::GetCurrentThread();

    const ProcEntry *entry =
        std::lower_bound(&g_procTable[0], &g_procTable[g_numProcs], procname, CompareProc);

    thread->setSuccess();

    if (entry == &g_procTable[g_numProcs] || strcmp(entry->first, procname) != 0)
    {
        return nullptr;
    }

    return entry->second;
}
}  // extern "C"
kc3-lang/angle/src/libGLESv2/entry_points_egl.cpp

Commit

kc3-lang/angle /src/libGLESv2/entry_points_egl.cpp
