Source/WebCore/platform/graphics/gpu/GPURenderPipelineDescriptor.h

/*
 * 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 "GPUColorStateDescriptor.h"
#include "GPUDepthStencilStateDescriptor.h"
#include "GPUPipelineDescriptorBase.h"
#include "GPUPipelineStageDescriptor.h"
#include "GPUVertexInputDescriptor.h"
#include <wtf/Optional.h>
#include <wtf/Vector.h>

namespace WebCore {

enum class GPUPrimitiveTopology {
    PointList,
    LineList,
    LineStrip,
    TriangleList,
    TriangleStrip
};

struct GPURenderPipelineDescriptorBase {
    GPUPrimitiveTopology primitiveTopology;
    Vector<GPUColorStateDescriptor> colorStates;
    Optional<GPUDepthStencilStateDescriptor> depthStencilState;
    GPUVertexInputDescriptor vertexInput;
};

struct GPURenderPipelineDescriptor : GPUPipelineDescriptorBase, GPURenderPipelineDescriptorBase {
    GPURenderPipelineDescriptor(RefPtr<GPUPipelineLayout>&& layout, GPUPipelineStageDescriptor&& vertex, Optional<GPUPipelineStageDescriptor>&& fragment, const GPURenderPipelineDescriptorBase& base)
        : GPUPipelineDescriptorBase { WTFMove(layout) }
        , GPURenderPipelineDescriptorBase(base)
        , vertexStage(WTFMove(vertex))
        , fragmentStage(WTFMove(fragment))
    {
    }

    GPUPipelineStageDescriptor vertexStage;
    Optional<GPUPipelineStageDescriptor> fragmentStage;
};

} // namespace WebCore

#endif // ENABLE(WEBGPU)