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/*
* 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
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "RemoteGraphicsContextGLProxyBase.h"
#if ENABLE(GPU_PROCESS) && ENABLE(WEBGL)
#include "NotImplemented.h"
namespace WebCore {
RemoteGraphicsContextGLProxyBase::RemoteGraphicsContextGLProxyBase(const GraphicsContextGLAttributes& attrs)
: GraphicsContextGL(attrs)
{
platformInitialize();
}
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();
m_layerComposited = false;
}
void RemoteGraphicsContextGLProxyBase::markLayerComposited()
{
m_layerComposited = true;
auto attrs = contextAttributes();
if (!attrs.preserveDrawingBuffer) {
m_buffersToAutoClear = GraphicsContextGL::COLOR_BUFFER_BIT;
if (attrs.depth)
m_buffersToAutoClear |= GraphicsContextGL::DEPTH_BUFFER_BIT;
if (attrs.stencil)
m_buffersToAutoClear |= GraphicsContextGL::STENCIL_BUFFER_BIT;
}
for (auto* client : copyToVector(m_clients))
client->didComposite();
}
bool RemoteGraphicsContextGLProxyBase::layerComposited() const
{
return m_layerComposited;
}
void RemoteGraphicsContextGLProxyBase::setBuffersToAutoClear(GCGLbitfield buffers)
{
if (!contextAttributes().preserveDrawingBuffer)
m_buffersToAutoClear = buffers;
}
GCGLbitfield RemoteGraphicsContextGLProxyBase::getBuffersToAutoClear() const
{
return m_buffersToAutoClear;
}
void RemoteGraphicsContextGLProxyBase::enablePreserveDrawingBuffer()
{
// Redeclared for export reasons.
// FIXME: The whole function should be removed.
GraphicsContextGL::enablePreserveDrawingBuffer();
}
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 !PLATFORM(COCOA)
void RemoteGraphicsContextGLProxyBase::platformInitialize()
{
}
PlatformLayer* RemoteGraphicsContextGLProxyBase::platformLayer() const
{
return nullptr;
}
#endif
#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
}
#endif
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