/*
 * Copyright (C) 2021-2025 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. 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 HAVE(WEBGPU_IMPLEMENTATION)

#include "WebGPUPtr.h"
#include "WebGPURenderPassEncoder.h"
#include <WebGPU/WebGPU.h>
#include <wtf/TZoneMalloc.h>

namespace WebCore::WebGPU {

class ConvertToBackingContext;

class RenderPassEncoderImpl final : public RenderPassEncoder {
    WTF_MAKE_TZONE_ALLOCATED(RenderPassEncoderImpl);
public:
    static Ref<RenderPassEncoderImpl> create(WebGPUPtr<WGPURenderPassEncoder>&& renderPassEncoder, ConvertToBackingContext& convertToBackingContext)
    {
        return adoptRef(*new RenderPassEncoderImpl(WTFMove(renderPassEncoder), convertToBackingContext));
    }

    virtual ~RenderPassEncoderImpl();

private:
    friend class DowncastConvertToBackingContext;

    RenderPassEncoderImpl(WebGPUPtr<WGPURenderPassEncoder>&&, ConvertToBackingContext&);

    RenderPassEncoderImpl(const RenderPassEncoderImpl&) = delete;
    RenderPassEncoderImpl(RenderPassEncoderImpl&&) = delete;
    RenderPassEncoderImpl& operator=(const RenderPassEncoderImpl&) = delete;
    RenderPassEncoderImpl& operator=(RenderPassEncoderImpl&&) = delete;

    WGPURenderPassEncoder backing() const { return m_backing.get(); }

    void setPipeline(const RenderPipeline&) final;

    void setIndexBuffer(const Buffer&, IndexFormat, std::optional<Size64> offset, std::optional<Size64>) final;
    void setVertexBuffer(Index32 slot, const Buffer*, std::optional<Size64> offset, std::optional<Size64>) final;

    void draw(Size32 vertexCount, std::optional<Size32> instanceCount,
        std::optional<Size32> firstVertex, std::optional<Size32> firstInstance) final;
    void drawIndexed(Size32 indexCount, std::optional<Size32> instanceCount,
        std::optional<Size32> firstIndex,
        std::optional<SignedOffset32> baseVertex,
        std::optional<Size32> firstInstance) final;

    void drawIndirect(const Buffer& indirectBuffer, Size64 indirectOffset) final;
    void drawIndexedIndirect(const Buffer& indirectBuffer, Size64 indirectOffset) final;

    void setBindGroup(Index32, const BindGroup*,
        std::optional<Vector<BufferDynamicOffset>>&& dynamicOffsets) final;

    void setBindGroup(Index32, const BindGroup*,
        std::span<const uint32_t> dynamicOffsetsArrayBuffer,
        Size64 dynamicOffsetsDataStart,
        Size32 dynamicOffsetsDataLength) final;

    void pushDebugGroup(String&& groupLabel) final;
    void popDebugGroup() final;
    void insertDebugMarker(String&& markerLabel) final;

    void setViewport(float x, float y,
        float width, float height,
        float minDepth, float maxDepth) final;

    void setScissorRect(IntegerCoordinate x, IntegerCoordinate y,
        IntegerCoordinate width, IntegerCoordinate height) final;

    void setBlendConstant(Color) final;
    void setStencilReference(StencilValue) final;

    void beginOcclusionQuery(Size32 queryIndex) final;
    void endOcclusionQuery() final;

    void executeBundles(Vector<Ref<RenderBundle>>&&) final;
    void end() final;

    void setLabelInternal(const String&) final;

    WebGPUPtr<WGPURenderPassEncoder> m_backing;
    const Ref<ConvertToBackingContext> m_convertToBackingContext;
};

} // namespace WebCore::WebGPU

#endif // HAVE(WEBGPU_IMPLEMENTATION)
