Structures

VkDecompressMemoryRegionNV

Structure specifying decompression region parameters

The VkDecompressMemoryRegionNV structure is defined as:

typedef struct VkDecompressMemoryRegionNV {
    VkDeviceAddress srcAddress;
    VkDeviceAddress dstAddress;
    VkDeviceSize compressedSize;
    VkDeviceSize decompressedSize;
    VkMemoryDecompressionMethodFlagsEXT decompressionMethod;
} VkDecompressMemoryRegionNV;

pub struct DecompressMemoryRegionNV {
    src_address: vk::DeviceAddress,
    dst_address: vk::DeviceAddress,
    compressed_size: vk::DeviceSize, // Specified in bytes
    decompressed_size: vk::DeviceSize, // Specified in bytes
    decompression_method: vk::MemoryDecompressionMethodFlagsEXT,
}

srcAddress is the address where compressed data is stored.
dstAddress is the destination address where decompressed data will be written.
compressedSize is the size of compressed data in bytes.
decompressedSize is the size of decompressed data in bytes.
decompressionMethod is a bitmask of VkMemoryDecompressionMethodFlagBitsNV with a single bit set specifying the method used to decompress data.

Valid Usage

VUID-VkDecompressMemoryRegionNV-decompressionMethod-07690

The decompressionMethod must have a single bit set

VUID-VkDecompressMemoryRegionNV-srcAddress-07685

srcAddress must be 4 byte aligned

VUID-VkDecompressMemoryRegionNV-srcAddress-07686

The memory range defined by srcAddress and compressedSizemust be contained within the size of the buffer bound to srcAddress, minus the offset of srcAddress from the base address of that buffer

VUID-VkDecompressMemoryRegionNV-dstAddress-07687

dstAddress must be 4 byte aligned

VUID-VkDecompressMemoryRegionNV-dstAddress-07688

The memory range defined by dstAddress and decompressedSizemust be contained within the size of the buffer bound to dstAddress, minus the offset of dstAddress from the base address of that buffer