VK_IMG_format_pvrtc
Other Extension Metadata
Last Modified Date
2019-09-02
IP Status
Imagination Technologies Proprietary
Contributors
- Stuart Smith, Imagination Technologies
Description
VK_IMG_format_pvrtc provides additional texture compression functionality
specific to Imagination Technologies PowerVR Texture compression format
(called PVRTC).
As also noted in the Khronos Data Format Specification, PVRTC1 images must have dimensions that are a power of two.
Deprecation
Both PVRTC1 and PVRTC2 are slower than standard image formats on PowerVR GPUs, and support will be removed from future hardware.
New Enum Constants
VK_IMG_FORMAT_PVRTC_EXTENSION_NAMEVK_IMG_FORMAT_PVRTC_SPEC_VERSION- Extending VkFormat:
VK_FORMAT_PVRTC1_2BPP_SRGB_BLOCK_IMGVK_FORMAT_PVRTC1_2BPP_UNORM_BLOCK_IMGVK_FORMAT_PVRTC1_4BPP_SRGB_BLOCK_IMGVK_FORMAT_PVRTC1_4BPP_UNORM_BLOCK_IMGVK_FORMAT_PVRTC2_2BPP_SRGB_BLOCK_IMGVK_FORMAT_PVRTC2_2BPP_UNORM_BLOCK_IMGVK_FORMAT_PVRTC2_4BPP_SRGB_BLOCK_IMGVK_FORMAT_PVRTC2_4BPP_UNORM_BLOCK_IMG
Version History
- Revision 1, 2019-09-02 (Stuart Smith)
- Initial version