VkConvertCooperativeVectorMatrixInfoNV

Each VkConvertCooperativeVectorMatrixInfoNV structure describes a request to convert the layout and type of a cooperative vector matrix.

The VkConvertCooperativeVectorMatrixInfoNV structure is defined as:

typedef struct VkConvertCooperativeVectorMatrixInfoNV {
    VkStructureType sType;
    const void* pNext;
    size_t srcSize;
    VkDeviceOrHostAddressConstKHR srcData;
    size_t* pDstSize;
    VkDeviceOrHostAddressKHR dstData;
    VkComponentTypeKHR srcComponentType;
    VkComponentTypeKHR dstComponentType;
    uint32_t numRows;
    uint32_t numColumns;
    VkCooperativeVectorMatrixLayoutNV srcLayout;
    size_t srcStride;
    VkCooperativeVectorMatrixLayoutNV dstLayout;
    size_t dstStride;
} VkConvertCooperativeVectorMatrixInfoNV;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• srcSize is the length in bytes of srcData.
• srcData is either NULL or a pointer to the source data in the source layout.
• pDstSize is a pointer to an integer related to the number of bytes required or requested to convert.
• dstData is either NULL or a pointer to the destination data in the destination layout.
• srcComponentType is the type of a source matrix element.
• dstComponentType is the type of a destination matrix element.
• numRows is the number of rows in the matrix.
• numColumns is the number of columns in the matrix.
• srcLayout is the layout of the source matrix.
• srcStride is the number of bytes between a consecutive row or column (depending on srcLayout) of the source matrix, if it is row-major or column-major.
• dstLayout is the layout the matrix is converted to.
• dstStride is the number of bytes between a consecutive row or column (depending on dstLayout) of destination matrix, if it is row-major or column-major.

When called from vkCmdConvertCooperativeVectorMatrixNV, the deviceAddress members of srcData and dstData are used. When called from vkConvertCooperativeVectorMatrixNV, the hostAddress members of srcData and dstData are used.

For each of the source and destination matrix, if the layout is not either VK_COOPERATIVE_VECTOR_MATRIX_LAYOUT_ROW_MAJOR_NV or VK_COOPERATIVE_VECTOR_MATRIX_LAYOUT_COLUMN_MAJOR_NV, then the corresponding stride parameter is ignored.

The size of the destination is only a function of the destination layout information, and does not depend on the source layout information.

Conversion can be used to convert between VK_COMPONENT_TYPE_FLOAT32_KHR or VK_COMPONENT_TYPE_FLOAT16_KHR and any supported lower-precision floating-point type. In this case, the conversion uses round-to-nearest-even rounding.