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/*
* Copyright (C) 2025 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 "RemoteNativeImageProxy.h"
#if ENABLE(GPU_PROCESS)
#include "RemoteResourceCacheProxy.h"
#include <WebCore/Color.h>
#include <WebCore/GraphicsContext.h>
#include <WebCore/ImageBuffer.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebKit {
using namespace WebCore;
static PlatformImagePtr placeholderPlatformImage()
{
static NeverDestroyed<PlatformImagePtr> image = [] {
// Currently we return a placeholder that does not match the NativeImage
// size, colorspace, isAlpha properties.
RefPtr buffer = ImageBuffer::create(FloatSize { 1, 1 }, RenderingMode::Unaccelerated, RenderingPurpose::Unspecified, 1, DestinationColorSpace::SRGB(), ImageBufferFormat { PixelFormat::BGRA8 });
RELEASE_ASSERT(buffer);
buffer->context().fillRect({ 0, 0, 1, 1 }, Color::black);
RefPtr nativeImage = ImageBuffer::sinkIntoNativeImage(WTFMove(buffer));
RELEASE_ASSERT(nativeImage);
return nativeImage->platformImage();
}();
return image;
}
WTF_MAKE_TZONE_ALLOCATED_IMPL(RemoteNativeImageProxy);
Ref<RemoteNativeImageProxy> RemoteNativeImageProxy::create(const IntSize& size, PlatformColorSpace&& colorSpace, bool hasAlpha, WeakRef<RemoteResourceCacheProxy>&& resourceCache)
{
return adoptRef(*new RemoteNativeImageProxy(size, WTFMove(colorSpace), hasAlpha, WTFMove(resourceCache)));
}
RemoteNativeImageProxy::RemoteNativeImageProxy(const IntSize& size, PlatformColorSpace&& colorSpace, bool hasAlpha, WeakRef<RemoteResourceCacheProxy>&& resourceCache)
: NativeImage(nullptr)
, m_resourceCache(WTFMove(resourceCache))
, m_size(size)
, m_colorSpace(WTFMove(colorSpace))
, m_hasAlpha(hasAlpha)
{
}
RemoteNativeImageProxy::~RemoteNativeImageProxy()
{
if (CheckedPtr resourceCache = m_resourceCache.get())
resourceCache->willDestroyRemoteNativeImageProxy(*this);
}
const PlatformImagePtr& RemoteNativeImageProxy::platformImage() const
{
if (!m_platformImage) {
if (CheckedPtr resourceCache = m_resourceCache.get())
m_platformImage = resourceCache->platformImage(*this);
}
// The callers do not expect !platformImage().
if (!m_platformImage)
m_platformImage = placeholderPlatformImage();
return m_platformImage;
}
IntSize RemoteNativeImageProxy::size() const
{
return m_size;
}
bool RemoteNativeImageProxy::hasAlpha() const
{
return m_hasAlpha;
}
DestinationColorSpace RemoteNativeImageProxy::colorSpace() const
{
// FIXME: Images are not in destination color space, they are in any color space.
return DestinationColorSpace { m_colorSpace };
}
}
#endif
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