// Copyright 2019 The Dawn Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#ifndef DAWNNATIVE_COMMANDVALIDATION_H_
#define DAWNNATIVE_COMMANDVALIDATION_H_

#include "dawn_native/CommandAllocator.h"
#include "dawn_native/Error.h"
#include "dawn_native/Texture.h"

#include <vector>

namespace dawn::native {

    class QuerySetBase;
    struct SyncScopeResourceUsage;
    struct TexelBlockInfo;

    MaybeError ValidateSyncScopeResourceUsage(const SyncScopeResourceUsage& usage);

    MaybeError ValidateTimestampQuery(QuerySetBase* querySet, uint32_t queryIndex);

    MaybeError ValidateWriteBuffer(const DeviceBase* device,
                                   const BufferBase* buffer,
                                   uint64_t bufferOffset,
                                   uint64_t size);

    ResultOrError<uint64_t> ComputeRequiredBytesInCopy(const TexelBlockInfo& blockInfo,
                                                       const Extent3D& copySize,
                                                       uint32_t bytesPerRow,
                                                       uint32_t rowsPerImage);

    void ApplyDefaultTextureDataLayoutOptions(TextureDataLayout* layout,
                                              const TexelBlockInfo& blockInfo,
                                              const Extent3D& copyExtent);
    MaybeError ValidateLinearTextureData(const TextureDataLayout& layout,
                                         uint64_t byteSize,
                                         const TexelBlockInfo& blockInfo,
                                         const Extent3D& copyExtent);
    MaybeError ValidateTextureCopyRange(DeviceBase const* device,
                                        const ImageCopyTexture& imageCopyTexture,
                                        const Extent3D& copySize);
    ResultOrError<Aspect> SingleAspectUsedByImageCopyTexture(const ImageCopyTexture& view);
    MaybeError ValidateLinearToDepthStencilCopyRestrictions(const ImageCopyTexture& dst);

    MaybeError ValidateImageCopyBuffer(DeviceBase const* device,
                                       const ImageCopyBuffer& imageCopyBuffer);
    MaybeError ValidateImageCopyTexture(DeviceBase const* device,
                                        const ImageCopyTexture& imageCopyTexture,
                                        const Extent3D& copySize);

    MaybeError ValidateCopySizeFitsInBuffer(const Ref<BufferBase>& buffer,
                                            uint64_t offset,
                                            uint64_t size);

    bool IsRangeOverlapped(uint32_t startA, uint32_t startB, uint32_t length);

    MaybeError ValidateTextureToTextureCopyCommonRestrictions(const ImageCopyTexture& src,
                                                              const ImageCopyTexture& dst,
                                                              const Extent3D& copySize);
    MaybeError ValidateTextureToTextureCopyRestrictions(const ImageCopyTexture& src,
                                                        const ImageCopyTexture& dst,
                                                        const Extent3D& copySize);

    enum class UsageValidationMode {
        Default,
        Internal,
    };

    MaybeError ValidateCanUseAs(const TextureBase* texture,
                                wgpu::TextureUsage usage,
                                UsageValidationMode mode);
    MaybeError ValidateCanUseAs(const BufferBase* buffer, wgpu::BufferUsage usage);

}  // namespace dawn::native

#endif  // DAWNNATIVE_COMMANDVALIDATION_H_