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/*
* Copyright (C) 2024 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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.
*/
#pragma once
#include "ImageDataStorageFormat.h"
#include <JavaScriptCore/Float16Array.h>
#include <JavaScriptCore/Uint8ClampedArray.h>
#include <optional>
#include <variant>
#include <wtf/JSONValues.h>
namespace WebCore {
class ImageDataArray {
public:
static constexpr bool isSupported(JSC::TypedArrayType type) { return !!toImageDataStorageFormat(type); }
static bool isSupported(const JSC::ArrayBufferView&);
ImageDataArray(Ref<JSC::Uint8ClampedArray>&&);
ImageDataArray(Ref<JSC::Float16Array>&&);
ImageDataArray(ImageDataArray&& original, std::optional<ImageDataStorageFormat> overridingStorageFormat);
static std::optional<ImageDataArray> tryCreate(size_t, ImageDataStorageFormat, std::span<const uint8_t> = { });
ImageDataStorageFormat storageFormat() const;
size_t length() const;
JSC::ArrayBufferView& arrayBufferView() const { return m_arrayBufferView.get(); }
Ref<JSC::ArrayBufferView> protectedArrayBufferView() const { return m_arrayBufferView; }
auto byteLength() const { return protectedArrayBufferView()->byteLength(); }
auto isDetached() const { return protectedArrayBufferView()->isDetached(); }
auto span() const { return protectedArrayBufferView()->span(); }
Ref<JSC::Uint8ClampedArray> asUint8ClampedArray() const;
Ref<JSC::Float16Array> asFloat16Array() const;
Ref<JSON::Value> copyToJSONArray() const;
private:
ImageDataArray(Ref<JSC::ArrayBufferView>&&);
Ref<ArrayBufferView> extractBufferViewWithStorageFormat(std::optional<ImageDataStorageFormat>) &&;
// Needed by `toJS<IDLUnion<IDLUint8ClampedArray, ...>, const ImageDataArray&>()`
template<typename IDL, bool needsState, bool needsGlobalObject> friend struct JSConverterOverloader;
using Variant = std::variant<RefPtr<JSC::Uint8ClampedArray>, RefPtr<JSC::Float16Array>>;
operator Variant() const;
Ref<JSC::ArrayBufferView> m_arrayBufferView;
};
} // namespace WebCore
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