VkImageUsageFlagBits

Bits which can be set in

• VkImageViewUsageCreateInfo::usage
• VkImageStencilUsageCreateInfo::stencilUsage
• VkImageCreateInfo::usage

specify intended usage of an image, and are:

typedef enum VkImageUsageFlagBits {
    VK_IMAGE_USAGE_TRANSFER_SRC_BIT = 0x00000001,
    VK_IMAGE_USAGE_TRANSFER_DST_BIT = 0x00000002,
    VK_IMAGE_USAGE_SAMPLED_BIT = 0x00000004,
    VK_IMAGE_USAGE_STORAGE_BIT = 0x00000008,
    VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT = 0x00000010,
    VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT = 0x00000020,
    VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT = 0x00000040,
    VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT = 0x00000080,
} VkImageUsageFlagBits;

• VK_IMAGE_USAGE_TRANSFER_SRC_BIT specifies that the image can be used as the source of a transfer command.
• VK_IMAGE_USAGE_TRANSFER_DST_BIT specifies that the image can be used as the destination of a transfer command.
• VK_IMAGE_USAGE_SAMPLED_BIT specifies that the image can be used to create a VkImageView suitable for occupying a VkDescriptorSet slot either of type VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE or VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, and be sampled by a shader.
• VK_IMAGE_USAGE_STORAGE_BIT specifies that the image can be used to create a VkImageView suitable for occupying a VkDescriptorSet slot of type VK_DESCRIPTOR_TYPE_STORAGE_IMAGE.
• VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT specifies that the image can be used to create a VkImageView suitable for use as a color or resolve attachment in a VkFramebuffer.
• VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT specifies that the image can be used to create a VkImageView suitable for use as a depth/stencil or depth/stencil resolve attachment in a VkFramebuffer.
• VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT specifies that implementations may support using memory allocations with the VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT to back an image with this usage. This bit can be set for any image that can be used to create a VkImageView suitable for use as a color, resolve, depth/stencil, or input attachment.
• VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT specifies that the image can be used to create a VkImageView suitable for occupying VkDescriptorSet slot of type VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT; be read from a shader as an input attachment; and be used as an input attachment in a framebuffer.
• VK_IMAGE_USAGE_FRAGMENT_DENSITY_MAP_BIT_EXT specifies that the image can be used to create a VkImageView suitable for use as a fragment density map image.
• VK_IMAGE_USAGE_FRAGMENT_SHADING_RATE_ATTACHMENT_BIT_KHR specifies that the image can be used to create a VkImageView suitable for use as a fragment shading rate attachment or shading rate image
• VK_IMAGE_USAGE_VIDEO_DECODE_DST_BIT_KHR specifies that the image can be used as a decode output picture in a video decode operation.
• VK_IMAGE_USAGE_VIDEO_DECODE_SRC_BIT_KHR is reserved for future use.
• VK_IMAGE_USAGE_VIDEO_DECODE_DPB_BIT_KHR specifies that the image can be used as an output reconstructed picture or an input reference picture in a video decode operation.
• VK_IMAGE_USAGE_VIDEO_ENCODE_DST_BIT_KHR is reserved for future use.
• VK_IMAGE_USAGE_VIDEO_ENCODE_SRC_BIT_KHR specifies that the image can be used as an encode input picture in a video encode operation.
• VK_IMAGE_USAGE_VIDEO_ENCODE_DPB_BIT_KHR specifies that the image can be used as an output reconstructed picture or an input reference picture in a video encode operation.
• VK_IMAGE_USAGE_ATTACHMENT_FEEDBACK_LOOP_BIT_EXT specifies that the image can be transitioned to the VK_IMAGE_LAYOUT_ATTACHMENT_FEEDBACK_LOOP_OPTIMAL_EXT layout to be used as a color or depth/stencil attachment in a VkFramebuffer and/or as a read-only input resource in a shader (sampled image, combined image sampler or input attachment) in the same render pass.
• VK_IMAGE_USAGE_HOST_TRANSFER_BIT specifies that the image can be used with host copy commands and host layout transitions.
• VK_IMAGE_USAGE_VIDEO_ENCODE_QUANTIZATION_DELTA_MAP_BIT_KHR specifies that the image can be used as a quantization delta map in a video encode operation.
• VK_IMAGE_USAGE_VIDEO_ENCODE_EMPHASIS_MAP_BIT_KHR specifies that the image can be used as an emphasis map in a video encode operation.