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/*
* Copyright (C) 2023 Sony Interactive Entertainment Inc.
*
* 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. AND ITS CONTRIBUTORS ``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 ITS 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 "WCRemoteFrameHostLayerManager.h"
#if USE(GRAPHICS_LAYER_WC)
#include <WebCore/BitmapTexture.h>
#include <WebCore/TextureMapper.h>
#include <WebCore/TextureMapperPlatformLayer.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebKit {
class WCRemoteFrameHostLayer final : public WebCore::TextureMapperPlatformLayer {
WTF_MAKE_TZONE_ALLOCATED_INLINE(WCRemoteFrameHostLayer);
public:
void paintToTextureMapper(WebCore::TextureMapper& textureMapper, const WebCore::FloatRect& targetRect, const WebCore::TransformationMatrix& modelViewMatrix, float opacity) override
{
if (m_texture)
textureMapper.drawTexture(*m_texture, targetRect, modelViewMatrix, opacity);
}
void setTexture(RefPtr<WebCore::BitmapTexture> texture)
{
m_texture = texture;
}
private:
RefPtr<WebCore::BitmapTexture> m_texture;
};
class WCRemoteFrameHostLayerManager::RemoteFrameHostLayerData final {
WTF_MAKE_TZONE_ALLOCATED_INLINE(WCRemoteFrameHostLayerManager);
public:
RemoteFrameHostLayerData(WebCore::ProcessIdentifier webProcessIdentifier)
: m_webProcessIdentifier(webProcessIdentifier)
{
}
WebCore::ProcessIdentifier webProcessIdentifier() const { return m_webProcessIdentifier; }
void setWebProcessIdentifier(WebCore::ProcessIdentifier webProcessIdentifier) { m_webProcessIdentifier = webProcessIdentifier; }
WCRemoteFrameHostLayer& layer() { return m_layer; }
private:
// A web process identifier currently owning the texture. Remote frame process or frame host process.
WebCore::ProcessIdentifier m_webProcessIdentifier;
WCRemoteFrameHostLayer m_layer;
};
WCRemoteFrameHostLayerManager& WCRemoteFrameHostLayerManager::singleton()
{
static NeverDestroyed<WCRemoteFrameHostLayerManager> manager;
return manager;
}
WebCore::TextureMapperPlatformLayer* WCRemoteFrameHostLayerManager::acquireRemoteFrameHostLayer(WebCore::LayerHostingContextIdentifier layerHostingContextIdentifier, WebCore::ProcessIdentifier webProcessIdentifier)
{
auto& data = *m_layers.ensure(layerHostingContextIdentifier, [&] {
return makeUnique<RemoteFrameHostLayerData>(webProcessIdentifier);
}).iterator->value;
// Transfer the data ownership to the frame host process.
data.setWebProcessIdentifier(webProcessIdentifier);
return &data.layer();
}
void WCRemoteFrameHostLayerManager::releaseRemoteFrameHostLayer(WebCore::LayerHostingContextIdentifier layerHostingContextIdentifier)
{
m_layers.remove(layerHostingContextIdentifier);
}
void WCRemoteFrameHostLayerManager::updateTexture(WebCore::LayerHostingContextIdentifier layerHostingContextIdentifier, WebCore::ProcessIdentifier webProcessIdentifier, RefPtr<WebCore::BitmapTexture> texture)
{
m_layers.ensure(layerHostingContextIdentifier, [&] {
// Create a new data if the frame host didn't create it yet. The initial owner is the remote frame process.
return makeUnique<RemoteFrameHostLayerData>(webProcessIdentifier);
}).iterator->value->layer().setTexture(WTFMove(texture));
}
void WCRemoteFrameHostLayerManager::removeAllLayersForProcess(WebCore::ProcessIdentifier webProcessIdentifier)
{
m_layers.removeIf([&](auto& iterator) {
return iterator.value->webProcessIdentifier() == webProcessIdentifier;
});
}
} // namespace WebKit
#endif // USE(GRAPHICS_LAYER_WC)
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