/*
 * Copyright (C) 2018 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. 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.
 */

#pragma once

#if ENABLE(WEBGPU)

#include <wtf/RefCounted.h>
#include <wtf/RefPtr.h>
#include <wtf/RetainPtr.h>

OBJC_PROTOCOL(MTLLibrary);

namespace WebCore {

class GPUDevice;

struct GPUShaderModuleDescriptor;

using PlatformShaderModule = MTLLibrary;
using PlatformShaderModuleSmartPtr = RetainPtr<MTLLibrary>;

class GPUShaderModule : public RefCounted<GPUShaderModule> {
public:
    static RefPtr<GPUShaderModule> tryCreate(const GPUDevice&, const GPUShaderModuleDescriptor&);

    PlatformShaderModule* platformShaderModule() const { return m_whlslSource.isNull() ? m_platformShaderModule.get() : nullptr; }
    const String& whlslSource() const { return m_whlslSource; }

private:
    GPUShaderModule(PlatformShaderModuleSmartPtr&&);
    GPUShaderModule(String&& whlslSource);

    PlatformShaderModuleSmartPtr m_platformShaderModule;
    String m_whlslSource;
};

} // namespace WebCore

#endif // ENABLE(WEBGPU)