| // Copyright 2021 The Khronos Group Inc. |
| // |
| // SPDX-License-Identifier: CC-BY-4.0 |
| |
| include::{generated}/meta/{refprefix}VK_EXT_rgba10x6_formats.txt[] |
| |
| === Other Extension Metadata |
| |
| *Last Modified Date*:: |
| 2021-09-29 |
| *IP Status*:: |
| No known IP claims. |
| *Contributors*:: |
| - Jan-Harald Fredriksen, Arm |
| - Graeme Leese, Broadcom |
| - Spencer Fricke, Samsung |
| |
| === Description |
| |
| This extension enables the |
| ename:VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16 format to be used without |
| a <<samplers-YCbCr-conversion, sampler {YCbCr} conversion>> enabled. |
| |
| include::{generated}/interfaces/VK_EXT_rgba10x6_formats.txt[] |
| |
| === Issues |
| |
| 1) Should we reuse the existing format enumeration or introduce a new one? |
| |
| *RESOLVED*: We reuse an existing format enumeration, |
| ename:VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16, that was previously |
| exclusively used for YCbCr and therefore had a set of limitations related to |
| that usage. |
| The alternative was to introduce a new format token with exactly the same |
| bit representation as the existing token, but without the limitations. |
| |
| 2) Should we only introduce |
| ename:VK_FORMAT_R10X6G10X6B10X6A10X6_UNORM_4PACK16 or also 1-3 component |
| variations? |
| |
| *RESOLVED*: Only the 4-component format is introduced because the 1- and 2- |
| component variations are already not exclusive to YCbCr, and the 3-component |
| variation is not a good match for hardware capabilities. |
| |
| === Version History |
| |
| * Revision 1, 2021-09-29 (Jan-Harald Fredriksen) |
| - Initial EXT version |
