Program Listing for File data-desc.h

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and your use of them is governed by the express license under which they
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 This software and the related documents are provided as is, with no express
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#pragma once

#include <cstdint>
#include <cstddef>

namespace gpa {

enum DataChangeType {
    kDefaultUpdate,
    kD3D11TextureUpdate,
    kD3D12TextureUpdate,
    kD3D11ResourceInitialData,
    kD3D11VideoDecoderData
};

enum class ResourceDataDescriptorVersion : uint32_t {
    VERSION_1,
    VERSION_2,  // Data blob contains CompressionHeader
    VERSION_COUNT,
};

struct DataChangeDesc
{
    DataChangeType type;
    uint32_t subresource;
    uint32_t depthPitch;
    uint32_t rowPitch;
    uint64_t offset;
    uint64_t size;
};

struct ResourceDataDescriptor
{
    enum : int64_t {
        kInvalidOffset = INT64_MAX,
    };
    uint64_t key;
    uint64_t secondaryKey;
    DataChangeDesc dataChangeDesc;
    int64_t dataOffset = kInvalidOffset;
    uint32_t version;
};

enum class CompressionHeaderVersion : uint32_t {
    VERSION_1,
    VERSION_COUNT,
};

struct CompressionHeader
{
    uint32_t version;
    uint32_t compressionType;
    uint64_t compressedSize;
};

}  // namespace gpa