| // Copyright 2017-2021 The Khronos Group, Inc. |
| // |
| // SPDX-License-Identifier: CC-BY-4.0 |
| |
| include::{generated}/meta/{refprefix}VK_KHR_8bit_storage.txt[] |
| |
| === Other Extension Metadata |
| |
| *Last Modified Date*:: |
| 2018-02-05 |
| *Interactions and External Dependencies*:: |
| - Promoted to Vulkan 1.2 Core |
| - This extension requires |
| {spirv}/KHR/SPV_KHR_8bit_storage.html[`SPV_KHR_8bit_storage`] |
| - This extension provides API support for |
| https://github.com/KhronosGroup/GLSL/blob/master/extensions/ext/GL_EXT_shader_16bit_storage.txt[`GL_EXT_shader_16bit_storage`] |
| *IP Status*:: |
| No known IP claims. |
| *Contributors*:: |
| - Alexander Galazin, Arm |
| |
| === Description |
| |
| The `VK_KHR_8bit_storage` extension allows use of 8-bit types in uniform and |
| storage buffers, and push constant blocks. |
| This extension introduces several new optional features which map to SPIR-V |
| capabilities and allow access to 8-bit data in code:Block-decorated objects |
| in the code:Uniform and the code:StorageBuffer storage classes, and objects |
| in the code:PushConstant storage class. |
| |
| The code:StorageBuffer8BitAccess capability must: be supported by all |
| implementations of this extension. |
| The other capabilities are optional. |
| |
| === Promotion to Vulkan 1.2 |
| |
| Functionality in this extension is included in core Vulkan 1.2, with the KHR |
| suffix omitted. |
| However, if Vulkan 1.2 is supported and this extension is not, the |
| code:StorageBuffer8BitAccess capability is optional. |
| The original type, enum and command names are still available as aliases of |
| the core functionality. |
| |
| include::{generated}/interfaces/VK_KHR_8bit_storage.txt[] |
| |
| === New SPIR-V Capabilities |
| |
| * <<spirvenv-capabilities-table-StorageBuffer8BitAccess, |
| code:StorageBuffer8BitAccess>> |
| * <<spirvenv-capabilities-table-UniformAndStorageBuffer8BitAccess, |
| code:UniformAndStorageBuffer8BitAccess>> |
| * <<spirvenv-capabilities-table-StoragePushConstant8, |
| code:StoragePushConstant8>> |
| |
| === Version History |
| |
| * Revision 1, 2018-02-05 (Alexander Galazin) |
| - Initial draft |
