Vulkan-Docs/doc/specs/vulkan/man/VkImageUsageFlagBits.txt

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// Copyright (c) 2014-2016 Khronos Group. This work is licensed under a
// Creative Commons Attribution 4.0 International License; see
// http://creativecommons.org/licenses/by/4.0/
Change log for March 25, 2016 Vulkan 1.0.7 spec update: * Bump API patch number and header version number to 7 for this update. Github Issues: * Fix slink:VkSpecializationMapEntry example to avoid C/C++ strict aliasing issues (public issue 14). * Clarify the meaning of "matching" in flink:vkCmdBindDescriptorSets validity language (public issue 33). * Add stub reference pages so xrefs to not-yet-written pages don't generate 404 errors. However, the actual content of these pages still needs to be filled in as time allows (public issue 44, but does not close that issue out). * Remove incorrect validity statement for flink:vkGetImageSparseMemoryRequirements (public issue 85). * Reword the <<features-limits-bufferImageGranularity,bufferImageGranularity>> feature in terms of "aliasing", and clarify that it applies to bindings in the same memory object (public issue 90). * Clarify the relationship of the slink:VkPhysicalDeviceLimits pname:maxViewportDimensions and pname:viewportBoundsRange limits (public issue 92). * Specify sparse unbound texture replacement in the <<textures-texel-replacement,Texel Replacement>> section independently of robust buffer access language (public issue 100). * Add the <<fundamentals-architecture-model,Architecture Model>> section to explain architecture constraints Vulkan has chosen to accept in order to enable portable and performant code (public issue 122). * State that an object must not be destroyed until *all* (not *any*) uses of that object have completed (public issue 123). * Minor editorial cleanup (public issues 129, 134, 146, 148). * Add validity language for layer and extension names to slink:VkDeviceCreateInfo matching that used for slink:VkInstanceCreateInfo (public issue 130). * Clean up terminology for the case when the bits set in one bitmask are a subset of the bits set in another bitmask (public issue 138). * Document that input attachments are UniformConstant not Input, in the <<interfaces-inputattachment,Fragment Input Attachment Interface>> section (public glslang bug 169). Internal Issues: * Add max enum values to "flag bits" enums (internal issue #136). * Clarify language around the various uses of the term "block" in the <<appendix-compressedtex-bc,Block Compressed Image Formats>> section (internal issue #202). * Removed "expand" dependency from <enums> groups in vk.xml and added auto-generation code in the scripts to infer it instead, to ensure consistency. This caused renaming of sname:VkColorSpaceKHR and sname:VkPresentModeKHR etext:BEGIN_RANGE (etc.) tokens, but those tokens are metadata, not part of the API, and the Vulkan WG is OK with this change. This change adds ranges to two additional enums that were missing them due to not defining the "expand" attribute (internal issue 217). * Tweak makefile to generate ref page nroff (.3) files in the right output directory, working around an a2x limitation (internal issue 223). Other Commits: * Add validity requirements for flink:vkCmdCopyQueryPoolResults pname:dstBuffer parameter. * Fix ref page build to generate .3 targets in the right output directory.
2016-03-25 09:25:04 +00:00
VkImageUsageFlagBits(3)
=======================
Name
----
VkImageUsageFlagBits - Bitmask specifying intended usage of an image
Change log for March 25, 2016 Vulkan 1.0.7 spec update: * Bump API patch number and header version number to 7 for this update. Github Issues: * Fix slink:VkSpecializationMapEntry example to avoid C/C++ strict aliasing issues (public issue 14). * Clarify the meaning of "matching" in flink:vkCmdBindDescriptorSets validity language (public issue 33). * Add stub reference pages so xrefs to not-yet-written pages don't generate 404 errors. However, the actual content of these pages still needs to be filled in as time allows (public issue 44, but does not close that issue out). * Remove incorrect validity statement for flink:vkGetImageSparseMemoryRequirements (public issue 85). * Reword the <<features-limits-bufferImageGranularity,bufferImageGranularity>> feature in terms of "aliasing", and clarify that it applies to bindings in the same memory object (public issue 90). * Clarify the relationship of the slink:VkPhysicalDeviceLimits pname:maxViewportDimensions and pname:viewportBoundsRange limits (public issue 92). * Specify sparse unbound texture replacement in the <<textures-texel-replacement,Texel Replacement>> section independently of robust buffer access language (public issue 100). * Add the <<fundamentals-architecture-model,Architecture Model>> section to explain architecture constraints Vulkan has chosen to accept in order to enable portable and performant code (public issue 122). * State that an object must not be destroyed until *all* (not *any*) uses of that object have completed (public issue 123). * Minor editorial cleanup (public issues 129, 134, 146, 148). * Add validity language for layer and extension names to slink:VkDeviceCreateInfo matching that used for slink:VkInstanceCreateInfo (public issue 130). * Clean up terminology for the case when the bits set in one bitmask are a subset of the bits set in another bitmask (public issue 138). * Document that input attachments are UniformConstant not Input, in the <<interfaces-inputattachment,Fragment Input Attachment Interface>> section (public glslang bug 169). Internal Issues: * Add max enum values to "flag bits" enums (internal issue #136). * Clarify language around the various uses of the term "block" in the <<appendix-compressedtex-bc,Block Compressed Image Formats>> section (internal issue #202). * Removed "expand" dependency from <enums> groups in vk.xml and added auto-generation code in the scripts to infer it instead, to ensure consistency. This caused renaming of sname:VkColorSpaceKHR and sname:VkPresentModeKHR etext:BEGIN_RANGE (etc.) tokens, but those tokens are metadata, not part of the API, and the Vulkan WG is OK with this change. This change adds ranges to two additional enums that were missing them due to not defining the "expand" attribute (internal issue 217). * Tweak makefile to generate ref page nroff (.3) files in the right output directory, working around an a2x limitation (internal issue 223). Other Commits: * Add validity requirements for flink:vkCmdCopyQueryPoolResults pname:dstBuffer parameter. * Fix ref page build to generate .3 targets in the right output directory.
2016-03-25 09:25:04 +00:00
C Specification
---------------
// refBegin VkImageUsageFlagBits - Bitmask specifying intended usage of an image
Change log for March 25, 2016 Vulkan 1.0.7 spec update: * Bump API patch number and header version number to 7 for this update. Github Issues: * Fix slink:VkSpecializationMapEntry example to avoid C/C++ strict aliasing issues (public issue 14). * Clarify the meaning of "matching" in flink:vkCmdBindDescriptorSets validity language (public issue 33). * Add stub reference pages so xrefs to not-yet-written pages don't generate 404 errors. However, the actual content of these pages still needs to be filled in as time allows (public issue 44, but does not close that issue out). * Remove incorrect validity statement for flink:vkGetImageSparseMemoryRequirements (public issue 85). * Reword the <<features-limits-bufferImageGranularity,bufferImageGranularity>> feature in terms of "aliasing", and clarify that it applies to bindings in the same memory object (public issue 90). * Clarify the relationship of the slink:VkPhysicalDeviceLimits pname:maxViewportDimensions and pname:viewportBoundsRange limits (public issue 92). * Specify sparse unbound texture replacement in the <<textures-texel-replacement,Texel Replacement>> section independently of robust buffer access language (public issue 100). * Add the <<fundamentals-architecture-model,Architecture Model>> section to explain architecture constraints Vulkan has chosen to accept in order to enable portable and performant code (public issue 122). * State that an object must not be destroyed until *all* (not *any*) uses of that object have completed (public issue 123). * Minor editorial cleanup (public issues 129, 134, 146, 148). * Add validity language for layer and extension names to slink:VkDeviceCreateInfo matching that used for slink:VkInstanceCreateInfo (public issue 130). * Clean up terminology for the case when the bits set in one bitmask are a subset of the bits set in another bitmask (public issue 138). * Document that input attachments are UniformConstant not Input, in the <<interfaces-inputattachment,Fragment Input Attachment Interface>> section (public glslang bug 169). Internal Issues: * Add max enum values to "flag bits" enums (internal issue #136). * Clarify language around the various uses of the term "block" in the <<appendix-compressedtex-bc,Block Compressed Image Formats>> section (internal issue #202). * Removed "expand" dependency from <enums> groups in vk.xml and added auto-generation code in the scripts to infer it instead, to ensure consistency. This caused renaming of sname:VkColorSpaceKHR and sname:VkPresentModeKHR etext:BEGIN_RANGE (etc.) tokens, but those tokens are metadata, not part of the API, and the Vulkan WG is OK with this change. This change adds ranges to two additional enums that were missing them due to not defining the "expand" attribute (internal issue 217). * Tweak makefile to generate ref page nroff (.3) files in the right output directory, working around an a2x limitation (internal issue 223). Other Commits: * Add validity requirements for flink:vkCmdCopyQueryPoolResults pname:dstBuffer parameter. * Fix ref page build to generate .3 targets in the right output directory.
2016-03-25 09:25:04 +00:00
The intended usage of an image is specified by the bitmask
slink:VkImageCreateInfo::pname:usage. Bits which can: be set include:
include::../enums/VkImageUsageFlagBits.txt[]
Change log for March 25, 2016 Vulkan 1.0.7 spec update: * Bump API patch number and header version number to 7 for this update. Github Issues: * Fix slink:VkSpecializationMapEntry example to avoid C/C++ strict aliasing issues (public issue 14). * Clarify the meaning of "matching" in flink:vkCmdBindDescriptorSets validity language (public issue 33). * Add stub reference pages so xrefs to not-yet-written pages don't generate 404 errors. However, the actual content of these pages still needs to be filled in as time allows (public issue 44, but does not close that issue out). * Remove incorrect validity statement for flink:vkGetImageSparseMemoryRequirements (public issue 85). * Reword the <<features-limits-bufferImageGranularity,bufferImageGranularity>> feature in terms of "aliasing", and clarify that it applies to bindings in the same memory object (public issue 90). * Clarify the relationship of the slink:VkPhysicalDeviceLimits pname:maxViewportDimensions and pname:viewportBoundsRange limits (public issue 92). * Specify sparse unbound texture replacement in the <<textures-texel-replacement,Texel Replacement>> section independently of robust buffer access language (public issue 100). * Add the <<fundamentals-architecture-model,Architecture Model>> section to explain architecture constraints Vulkan has chosen to accept in order to enable portable and performant code (public issue 122). * State that an object must not be destroyed until *all* (not *any*) uses of that object have completed (public issue 123). * Minor editorial cleanup (public issues 129, 134, 146, 148). * Add validity language for layer and extension names to slink:VkDeviceCreateInfo matching that used for slink:VkInstanceCreateInfo (public issue 130). * Clean up terminology for the case when the bits set in one bitmask are a subset of the bits set in another bitmask (public issue 138). * Document that input attachments are UniformConstant not Input, in the <<interfaces-inputattachment,Fragment Input Attachment Interface>> section (public glslang bug 169). Internal Issues: * Add max enum values to "flag bits" enums (internal issue #136). * Clarify language around the various uses of the term "block" in the <<appendix-compressedtex-bc,Block Compressed Image Formats>> section (internal issue #202). * Removed "expand" dependency from <enums> groups in vk.xml and added auto-generation code in the scripts to infer it instead, to ensure consistency. This caused renaming of sname:VkColorSpaceKHR and sname:VkPresentModeKHR etext:BEGIN_RANGE (etc.) tokens, but those tokens are metadata, not part of the API, and the Vulkan WG is OK with this change. This change adds ranges to two additional enums that were missing them due to not defining the "expand" attribute (internal issue 217). * Tweak makefile to generate ref page nroff (.3) files in the right output directory, working around an a2x limitation (internal issue 223). Other Commits: * Add validity requirements for flink:vkCmdCopyQueryPoolResults pname:dstBuffer parameter. * Fix ref page build to generate .3 targets in the right output directory.
2016-03-25 09:25:04 +00:00
Description
-----------
These bits have the following meanings:
* ename:VK_IMAGE_USAGE_TRANSFER_SRC_BIT indicates that the image can: be
used as the source of a transfer command.
* ename:VK_IMAGE_USAGE_TRANSFER_DST_BIT indicates that the image
can: be used as the destination of a transfer command.
* ename:VK_IMAGE_USAGE_SAMPLED_BIT indicates that the image can: be used
to create a sname:VkImageView suitable for occupying a
sname:VkDescriptorSet slot either of type
ename:VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE or
ename:VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, and be sampled by a
shader.
* ename:VK_IMAGE_USAGE_STORAGE_BIT indicates that the image can: be used
to create a sname:VkImageView suitable for occupying a
sname:VkDescriptorSet slot of type
ename:VK_DESCRIPTOR_TYPE_STORAGE_IMAGE.
* ename:VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT indicates that the image can:
be used to create a sname:VkImageView suitable for use as a color or
resolve attachment in a sname:VkFramebuffer.
* ename:VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT indicates that the
image can: be used to create a sname:VkImageView suitable for use as a
depth/stencil attachment in a sname:VkFramebuffer.
* ename:VK_IMAGE_USAGE_TRANSIENT_ATTACHMENT_BIT indicates that the memory
bound to this image will have been allocated with the
ename:VK_MEMORY_PROPERTY_LAZILY_ALLOCATED_BIT (see <<memory>> for more
detail). If this is set, then bits other than
ename:VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT,
ename:VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, and
ename:VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT mustnot: be set.
* ename:VK_IMAGE_USAGE_INPUT_ATTACHMENT_BIT indicates that the image can:
be used to create a sname:VkImageView suitable for occupying
sname:VkDescriptorSet slot of type
ename:VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT; be read from a shader as an
input attachment; and be used as an input attachment in a framebuffer.
// refEnd VkImageUsageFlagBits
Change log for March 25, 2016 Vulkan 1.0.7 spec update: * Bump API patch number and header version number to 7 for this update. Github Issues: * Fix slink:VkSpecializationMapEntry example to avoid C/C++ strict aliasing issues (public issue 14). * Clarify the meaning of "matching" in flink:vkCmdBindDescriptorSets validity language (public issue 33). * Add stub reference pages so xrefs to not-yet-written pages don't generate 404 errors. However, the actual content of these pages still needs to be filled in as time allows (public issue 44, but does not close that issue out). * Remove incorrect validity statement for flink:vkGetImageSparseMemoryRequirements (public issue 85). * Reword the <<features-limits-bufferImageGranularity,bufferImageGranularity>> feature in terms of "aliasing", and clarify that it applies to bindings in the same memory object (public issue 90). * Clarify the relationship of the slink:VkPhysicalDeviceLimits pname:maxViewportDimensions and pname:viewportBoundsRange limits (public issue 92). * Specify sparse unbound texture replacement in the <<textures-texel-replacement,Texel Replacement>> section independently of robust buffer access language (public issue 100). * Add the <<fundamentals-architecture-model,Architecture Model>> section to explain architecture constraints Vulkan has chosen to accept in order to enable portable and performant code (public issue 122). * State that an object must not be destroyed until *all* (not *any*) uses of that object have completed (public issue 123). * Minor editorial cleanup (public issues 129, 134, 146, 148). * Add validity language for layer and extension names to slink:VkDeviceCreateInfo matching that used for slink:VkInstanceCreateInfo (public issue 130). * Clean up terminology for the case when the bits set in one bitmask are a subset of the bits set in another bitmask (public issue 138). * Document that input attachments are UniformConstant not Input, in the <<interfaces-inputattachment,Fragment Input Attachment Interface>> section (public glslang bug 169). Internal Issues: * Add max enum values to "flag bits" enums (internal issue #136). * Clarify language around the various uses of the term "block" in the <<appendix-compressedtex-bc,Block Compressed Image Formats>> section (internal issue #202). * Removed "expand" dependency from <enums> groups in vk.xml and added auto-generation code in the scripts to infer it instead, to ensure consistency. This caused renaming of sname:VkColorSpaceKHR and sname:VkPresentModeKHR etext:BEGIN_RANGE (etc.) tokens, but those tokens are metadata, not part of the API, and the Vulkan WG is OK with this change. This change adds ranges to two additional enums that were missing them due to not defining the "expand" attribute (internal issue 217). * Tweak makefile to generate ref page nroff (.3) files in the right output directory, working around an a2x limitation (internal issue 223). Other Commits: * Add validity requirements for flink:vkCmdCopyQueryPoolResults pname:dstBuffer parameter. * Fix ref page build to generate .3 targets in the right output directory.
2016-03-25 09:25:04 +00:00
See Also
--------
elink:VkImageUsageFlags
Document Notes
--------------
For more information, see the Vulkan Specification at URL
https://www.khronos.org/registry/vulkan/specs/1.0/xhtml/vkspec.html#VkImageUsageFlagBits
This page is extracted from the Vulkan Specification.
Fixes and changes should be made to the Specification,not directly.
Change log for March 25, 2016 Vulkan 1.0.7 spec update: * Bump API patch number and header version number to 7 for this update. Github Issues: * Fix slink:VkSpecializationMapEntry example to avoid C/C++ strict aliasing issues (public issue 14). * Clarify the meaning of "matching" in flink:vkCmdBindDescriptorSets validity language (public issue 33). * Add stub reference pages so xrefs to not-yet-written pages don't generate 404 errors. However, the actual content of these pages still needs to be filled in as time allows (public issue 44, but does not close that issue out). * Remove incorrect validity statement for flink:vkGetImageSparseMemoryRequirements (public issue 85). * Reword the <<features-limits-bufferImageGranularity,bufferImageGranularity>> feature in terms of "aliasing", and clarify that it applies to bindings in the same memory object (public issue 90). * Clarify the relationship of the slink:VkPhysicalDeviceLimits pname:maxViewportDimensions and pname:viewportBoundsRange limits (public issue 92). * Specify sparse unbound texture replacement in the <<textures-texel-replacement,Texel Replacement>> section independently of robust buffer access language (public issue 100). * Add the <<fundamentals-architecture-model,Architecture Model>> section to explain architecture constraints Vulkan has chosen to accept in order to enable portable and performant code (public issue 122). * State that an object must not be destroyed until *all* (not *any*) uses of that object have completed (public issue 123). * Minor editorial cleanup (public issues 129, 134, 146, 148). * Add validity language for layer and extension names to slink:VkDeviceCreateInfo matching that used for slink:VkInstanceCreateInfo (public issue 130). * Clean up terminology for the case when the bits set in one bitmask are a subset of the bits set in another bitmask (public issue 138). * Document that input attachments are UniformConstant not Input, in the <<interfaces-inputattachment,Fragment Input Attachment Interface>> section (public glslang bug 169). Internal Issues: * Add max enum values to "flag bits" enums (internal issue #136). * Clarify language around the various uses of the term "block" in the <<appendix-compressedtex-bc,Block Compressed Image Formats>> section (internal issue #202). * Removed "expand" dependency from <enums> groups in vk.xml and added auto-generation code in the scripts to infer it instead, to ensure consistency. This caused renaming of sname:VkColorSpaceKHR and sname:VkPresentModeKHR etext:BEGIN_RANGE (etc.) tokens, but those tokens are metadata, not part of the API, and the Vulkan WG is OK with this change. This change adds ranges to two additional enums that were missing them due to not defining the "expand" attribute (internal issue 217). * Tweak makefile to generate ref page nroff (.3) files in the right output directory, working around an a2x limitation (internal issue 223). Other Commits: * Add validity requirements for flink:vkCmdCopyQueryPoolResults pname:dstBuffer parameter. * Fix ref page build to generate .3 targets in the right output directory.
2016-03-25 09:25:04 +00:00
include::footer.txt[]