Appendix C: Core Revisions (Informative)

New minor versions of the Vulkan API are defined periodically by the Khronos Vulkan Working Group. These consist of some amount of additional functionality added to the core API, potentially including both new functionality and functionality promoted from extensions.

It is possible to build the specification for earlier versions, but to aid readability of the latest versions, this appendix gives an overview of the changes as compared to earlier versions.

Version 1.1

Vulkan Version 1.1 promoted a number of key extensions into the core API:

  • VK_KHR_16bit_storage

  • VK_KHR_bind_memory2

  • VK_KHR_dedicated_allocation

  • VK_KHR_descriptor_update_template

  • VK_KHR_device_group

  • VK_KHR_device_group_creation

  • VK_KHR_external_fence

  • VK_KHR_external_fence_capabilities

  • VK_KHR_external_memory

  • VK_KHR_external_memory_capabilities

  • VK_KHR_external_semaphore

  • VK_KHR_external_semaphore_capabilities

  • VK_KHR_get_memory_requirements2

  • VK_KHR_get_physical_device_properties2

  • VK_KHR_maintenance1

  • VK_KHR_maintenance2

  • VK_KHR_maintenance3

  • VK_KHR_multiview

  • VK_KHR_relaxed_block_layout

  • VK_KHR_sampler_ycbcr_conversion

  • VK_KHR_shader_draw_parameters

  • VK_KHR_storage_buffer_storage_class

  • VK_KHR_variable_pointers

All differences in behavior between these extensions and the corresponding Vulkan 1.1 functionality are summarized below.

Differences relative to VK_KHR_16bit_storage

If the [VK_KHR_16bit_storage] extension is not supported, support for the storageBuffer16BitAccess feature is optional. Support for this feature is defined by VkPhysicalDevice16BitStorageFeatures::storageBuffer16BitAccess when queried via vkGetPhysicalDeviceFeatures2.

Differences relative to VK_KHR_sampler_ycbcr_conversion

If the [VK_KHR_sampler_ycbcr_conversion] extension is not supported, support for the samplerYcbcrConversion feature is optional. Support for this feature is defined by VkPhysicalDeviceSamplerYcbcrConversionFeatures::samplerYcbcrConversion when queried via vkGetPhysicalDeviceFeatures2.

Differences relative to VK_KHR_shader_draw_parameters

If the [VK_KHR_shader_draw_parameters] extension is not supported, support for the SPV_KHR_shader_draw_parameters SPIR-V extension is optional. Support for this feature is defined by VkPhysicalDeviceShaderDrawParametersFeatures::shaderDrawParameters when queried via vkGetPhysicalDeviceFeatures2.

Differences relative to VK_KHR_variable_pointers

If the [VK_KHR_variable_pointers] extension is not supported, support for the variablePointersStorageBuffer feature is optional. Support for this feature is defined by VkPhysicalDeviceVariablePointersFeatures::variablePointersStorageBuffer when queried via vkGetPhysicalDeviceFeatures2.

Additional Vulkan 1.1 Feature Support

In addition to the promoted extensions described above, Vulkan 1.1 added support for:

New Macros

New Structures

New Enum Constants

  • VK_LUID_SIZE

  • VK_MAX_DEVICE_GROUP_SIZE

  • VK_QUEUE_FAMILY_EXTERNAL

  • Extending VkBufferCreateFlagBits:

    • VK_BUFFER_CREATE_PROTECTED_BIT

  • Extending VkCommandPoolCreateFlagBits:

    • VK_COMMAND_POOL_CREATE_PROTECTED_BIT

  • Extending VkDependencyFlagBits:

    • VK_DEPENDENCY_DEVICE_GROUP_BIT

    • VK_DEPENDENCY_VIEW_LOCAL_BIT

  • Extending VkDeviceQueueCreateFlagBits:

    • VK_DEVICE_QUEUE_CREATE_PROTECTED_BIT

  • Extending VkFormat:

    • VK_FORMAT_B10X6G10X6R10X6G10X6_422_UNORM_4PACK16

    • VK_FORMAT_B12X4G12X4R12X4G12X4_422_UNORM_4PACK16

    • VK_FORMAT_B16G16R16G16_422_UNORM

    • VK_FORMAT_B8G8R8G8_422_UNORM

    • VK_FORMAT_G10X6B10X6G10X6R10X6_422_UNORM_4PACK16

    • VK_FORMAT_G10X6_B10X6R10X6_2PLANE_420_UNORM_3PACK16

    • VK_FORMAT_G10X6_B10X6R10X6_2PLANE_422_UNORM_3PACK16

    • VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_420_UNORM_3PACK16

    • VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_422_UNORM_3PACK16

    • VK_FORMAT_G10X6_B10X6_R10X6_3PLANE_444_UNORM_3PACK16

    • VK_FORMAT_G12X4B12X4G12X4R12X4_422_UNORM_4PACK16

    • VK_FORMAT_G12X4_B12X4R12X4_2PLANE_420_UNORM_3PACK16

    • VK_FORMAT_G12X4_B12X4R12X4_2PLANE_422_UNORM_3PACK16

    • VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_420_UNORM_3PACK16

    • VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_422_UNORM_3PACK16

    • VK_FORMAT_G12X4_B12X4_R12X4_3PLANE_444_UNORM_3PACK16

    • VK_FORMAT_G16B16G16R16_422_UNORM

    • VK_FORMAT_G16_B16R16_2PLANE_420_UNORM

    • VK_FORMAT_G16_B16R16_2PLANE_422_UNORM

    • VK_FORMAT_G16_B16_R16_3PLANE_420_UNORM

    • VK_FORMAT_G16_B16_R16_3PLANE_422_UNORM

    • VK_FORMAT_G16_B16_R16_3PLANE_444_UNORM

    • VK_FORMAT_G8B8G8R8_422_UNORM

    • VK_FORMAT_G8_B8R8_2PLANE_420_UNORM

    • VK_FORMAT_G8_B8R8_2PLANE_422_UNORM

    • VK_FORMAT_G8_B8_R8_3PLANE_420_UNORM

    • VK_FORMAT_G8_B8_R8_3PLANE_422_UNORM

    • VK_FORMAT_G8_B8_R8_3PLANE_444_UNORM

    • VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16

    • VK_FORMAT_R10X6G10X6_UNORM_2PACK16

    • VK_FORMAT_R10X6_UNORM_PACK16

    • VK_FORMAT_R12X4G12X4B12X4A12X4_UNORM_4PACK16

    • VK_FORMAT_R12X4G12X4_UNORM_2PACK16

    • VK_FORMAT_R12X4_UNORM_PACK16

  • Extending VkFormatFeatureFlagBits:

    • VK_FORMAT_FEATURE_COSITED_CHROMA_SAMPLES_BIT

    • VK_FORMAT_FEATURE_DISJOINT_BIT

    • VK_FORMAT_FEATURE_MIDPOINT_CHROMA_SAMPLES_BIT

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_CHROMA_RECONSTRUCTION_EXPLICIT_BIT

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_CHROMA_RECONSTRUCTION_EXPLICIT_FORCEABLE_BIT

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_LINEAR_FILTER_BIT

    • VK_FORMAT_FEATURE_SAMPLED_IMAGE_YCBCR_CONVERSION_SEPARATE_RECONSTRUCTION_FILTER_BIT

    • VK_FORMAT_FEATURE_TRANSFER_DST_BIT

    • VK_FORMAT_FEATURE_TRANSFER_SRC_BIT

  • Extending VkImageAspectFlagBits:

    • VK_IMAGE_ASPECT_PLANE_0_BIT

    • VK_IMAGE_ASPECT_PLANE_1_BIT

    • VK_IMAGE_ASPECT_PLANE_2_BIT

  • Extending VkImageCreateFlagBits:

    • VK_IMAGE_CREATE_2D_ARRAY_COMPATIBLE_BIT

    • VK_IMAGE_CREATE_ALIAS_BIT

    • VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT

    • VK_IMAGE_CREATE_DISJOINT_BIT

    • VK_IMAGE_CREATE_EXTENDED_USAGE_BIT

    • VK_IMAGE_CREATE_PROTECTED_BIT

    • VK_IMAGE_CREATE_SPLIT_INSTANCE_BIND_REGIONS_BIT

  • Extending VkImageLayout:

    • VK_IMAGE_LAYOUT_DEPTH_ATTACHMENT_STENCIL_READ_ONLY_OPTIMAL

    • VK_IMAGE_LAYOUT_DEPTH_READ_ONLY_STENCIL_ATTACHMENT_OPTIMAL

  • Extending VkMemoryHeapFlagBits:

    • VK_MEMORY_HEAP_MULTI_INSTANCE_BIT

  • Extending VkMemoryPropertyFlagBits:

    • VK_MEMORY_PROPERTY_PROTECTED_BIT

  • Extending VkObjectType:

    • VK_OBJECT_TYPE_DESCRIPTOR_UPDATE_TEMPLATE

    • VK_OBJECT_TYPE_SAMPLER_YCBCR_CONVERSION

  • Extending VkPipelineCreateFlagBits:

    • VK_PIPELINE_CREATE_DISPATCH_BASE_BIT

    • VK_PIPELINE_CREATE_VIEW_INDEX_FROM_DEVICE_INDEX_BIT

  • Extending VkQueueFlagBits:

    • VK_QUEUE_PROTECTED_BIT

  • Extending VkResult:

    • VK_ERROR_INVALID_EXTERNAL_HANDLE

    • VK_ERROR_OUT_OF_POOL_MEMORY

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_DEVICE_GROUP_INFO

    • VK_STRUCTURE_TYPE_BIND_BUFFER_MEMORY_INFO

    • VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_DEVICE_GROUP_INFO

    • VK_STRUCTURE_TYPE_BIND_IMAGE_MEMORY_INFO

    • VK_STRUCTURE_TYPE_BIND_IMAGE_PLANE_MEMORY_INFO

    • VK_STRUCTURE_TYPE_BUFFER_MEMORY_REQUIREMENTS_INFO_2

    • VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_SUPPORT

    • VK_STRUCTURE_TYPE_DESCRIPTOR_UPDATE_TEMPLATE_CREATE_INFO

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_BIND_SPARSE_INFO

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_COMMAND_BUFFER_BEGIN_INFO

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_DEVICE_CREATE_INFO

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_RENDER_PASS_BEGIN_INFO

    • VK_STRUCTURE_TYPE_DEVICE_GROUP_SUBMIT_INFO

    • VK_STRUCTURE_TYPE_DEVICE_QUEUE_INFO_2

    • VK_STRUCTURE_TYPE_EXPORT_FENCE_CREATE_INFO

    • VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO

    • VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO

    • VK_STRUCTURE_TYPE_EXTERNAL_BUFFER_PROPERTIES

    • VK_STRUCTURE_TYPE_EXTERNAL_FENCE_PROPERTIES

    • VK_STRUCTURE_TYPE_EXTERNAL_IMAGE_FORMAT_PROPERTIES

    • VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO

    • VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO

    • VK_STRUCTURE_TYPE_EXTERNAL_SEMAPHORE_PROPERTIES

    • VK_STRUCTURE_TYPE_FORMAT_PROPERTIES_2

    • VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2

    • VK_STRUCTURE_TYPE_IMAGE_MEMORY_REQUIREMENTS_INFO_2

    • VK_STRUCTURE_TYPE_IMAGE_PLANE_MEMORY_REQUIREMENTS_INFO

    • VK_STRUCTURE_TYPE_IMAGE_SPARSE_MEMORY_REQUIREMENTS_INFO_2

    • VK_STRUCTURE_TYPE_IMAGE_VIEW_USAGE_CREATE_INFO

    • VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO

    • VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO

    • VK_STRUCTURE_TYPE_MEMORY_DEDICATED_REQUIREMENTS

    • VK_STRUCTURE_TYPE_MEMORY_REQUIREMENTS_2

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_16BIT_STORAGE_FEATURES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_BUFFER_INFO

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_FENCE_INFO

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_IMAGE_FORMAT_INFO

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_EXTERNAL_SEMAPHORE_INFO

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_GROUP_PROPERTIES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_ID_PROPERTIES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MAINTENANCE_3_PROPERTIES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MEMORY_PROPERTIES_2

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_FEATURES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_MULTIVIEW_PROPERTIES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_POINT_CLIPPING_PROPERTIES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROPERTIES_2

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_FEATURES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_PROTECTED_MEMORY_PROPERTIES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_YCBCR_CONVERSION_FEATURES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_DRAW_PARAMETERS_FEATURES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SPARSE_IMAGE_FORMAT_INFO_2

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SUBGROUP_PROPERTIES

    • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VARIABLE_POINTERS_FEATURES

    • VK_STRUCTURE_TYPE_PIPELINE_TESSELLATION_DOMAIN_ORIGIN_STATE_CREATE_INFO

    • VK_STRUCTURE_TYPE_PROTECTED_SUBMIT_INFO

    • VK_STRUCTURE_TYPE_QUEUE_FAMILY_PROPERTIES_2

    • VK_STRUCTURE_TYPE_RENDER_PASS_INPUT_ATTACHMENT_ASPECT_CREATE_INFO

    • VK_STRUCTURE_TYPE_RENDER_PASS_MULTIVIEW_CREATE_INFO

    • VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_CREATE_INFO

    • VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_IMAGE_FORMAT_PROPERTIES

    • VK_STRUCTURE_TYPE_SAMPLER_YCBCR_CONVERSION_INFO

    • VK_STRUCTURE_TYPE_SPARSE_IMAGE_FORMAT_PROPERTIES_2

    • VK_STRUCTURE_TYPE_SPARSE_IMAGE_MEMORY_REQUIREMENTS_2