Source/WebCore/platform/graphics/RemoteGraphicsContextGLProxyBase.cpp

/*
 * Copyright (C) 2020 Apple Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *
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 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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#include "config.h"
#include "RemoteGraphicsContextGLProxyBase.h"

#if ENABLE(GPU_PROCESS) && ENABLE(WEBGL)
#include "NotImplemented.h"

#if PLATFORM(COCOA)
#include "IOSurface.h"
#endif

#if USE(GRAPHICS_LAYER_WC)
#include "TextureMapperPlatformLayer.h"
#endif

namespace WebCore {

RemoteGraphicsContextGLProxyBase::RemoteGraphicsContextGLProxyBase(const GraphicsContextGLAttributes& attrs)
    : GraphicsContextGL(attrs)
{
}

RemoteGraphicsContextGLProxyBase::~RemoteGraphicsContextGLProxyBase() = default;

ExtensionsGL& RemoteGraphicsContextGLProxyBase::getExtensions()
{
    return *this;
}

void RemoteGraphicsContextGLProxyBase::setContextVisibility(bool)
{
    notImplemented();
}

bool RemoteGraphicsContextGLProxyBase::isGLES2Compliant() const
{
#if ENABLE(WEBGL2)
    return contextAttributes().webGLVersion == GraphicsContextGLWebGLVersion::WebGL2;
#else
    return false;
#endif
}

void RemoteGraphicsContextGLProxyBase::markContextChanged()
{
    // FIXME: The caller should track this state.
    if (m_layerComposited) {
        notifyMarkContextChanged();
        GraphicsContextGL::markContextChanged();
    }
}

bool RemoteGraphicsContextGLProxyBase::supports(const String& name)
{
    waitUntilInitialized();
    return m_availableExtensions.contains(name) || m_requestableExtensions.contains(name);
}

void RemoteGraphicsContextGLProxyBase::ensureEnabled(const String& name)
{
    waitUntilInitialized();
    if (m_requestableExtensions.contains(name) && !m_enabledExtensions.contains(name)) {
        ensureExtensionEnabled(name);
        m_enabledExtensions.add(name);
    }
}

bool RemoteGraphicsContextGLProxyBase::isEnabled(const String& name)
{
    waitUntilInitialized();
    return m_availableExtensions.contains(name) || m_enabledExtensions.contains(name);
}

void RemoteGraphicsContextGLProxyBase::initialize(const String& availableExtensions, const String& requestableExtensions)
{
    for (auto& extension : availableExtensions.split(' '))
        m_availableExtensions.add(extension);
    for (auto& extension : requestableExtensions.split(' '))
        m_requestableExtensions.add(extension);
}

#if !USE(ANGLE)
void RemoteGraphicsContextGLProxyBase::readnPixelsEXT(GCGLint, GCGLint, GCGLsizei, GCGLsizei, GCGLenum, GCGLenum, GCGLsizei, GCGLvoid*)
{
}

void RemoteGraphicsContextGLProxyBase::getnUniformfvEXT(GCGLuint, GCGLint, GCGLsizei, GCGLfloat*)
{
}

void RemoteGraphicsContextGLProxyBase::getnUniformivEXT(GCGLuint, GCGLint, GCGLsizei, GCGLint*)
{
}
#endif

#if ENABLE(MEDIA_STREAM) && !PLATFORM(COCOA)
#endif
}
#endif