VkMemoryMapPlacedInfoEXT

If VK_MEMORY_MAP_PLACED_BIT_EXT is set in VkMemoryMapInfoKHR::flags and the pNext chain of VkMemoryMapInfoKHR includes a VkMemoryMapPlacedInfoEXT structure, then that structure specifies the placement address of the memory map. The implementation will place the memory map at the specified address, replacing any existing maps in the specified memory range. Replacing memory maps in this way does not implicitly unmap Vulkan memory objects. Instead, the application must ensure no other Vulkan memory objects are mapped anywhere in the specified virtual address range. If successful, ppData will be set to the same value as VkMemoryMapPlacedInfoEXT::pPlacedAddress and vkMapMemory2KHR will return VK_SUCCESS. If it cannot place the map at the requested address for any reason, the memory object is left unmapped and vkMapMemory2KHR will return VK_ERROR_MEMORY_MAP_FAILED.

The VkMemoryMapPlacedInfoEXT structure is defined as:

typedef struct VkMemoryMapPlacedInfoEXT {
    VkStructureType sType;
    const void* pNext;
    void* pPlacedAddress;
} VkMemoryMapPlacedInfoEXT;

• sType is a VkStructureType value identifying this structure.
• pNext is NULL or a pointer to a structure extending this structure.
• pPlacedAddress is the virtual address at which to place the address. If VkMemoryMapInfoKHR::flags does not contain VK_MEMORY_MAP_PLACED_BIT_EXT, this value is ignored.