vulkan-3.8.1: Bindings to the Vulkan graphics API.
Safe HaskellNone
LanguageHaskell2010

Vulkan.Extensions.VK_AMD_texture_gather_bias_lod

Description

Name

VK_AMD_texture_gather_bias_lod - device extension

VK_AMD_texture_gather_bias_lod

Name String
VK_AMD_texture_gather_bias_lod
Extension Type
Device extension
Registered Extension Number
42
Revision
1
Extension and Version Dependencies
  • Requires Vulkan 1.0
  • Requires VK_KHR_get_physical_device_properties2
Contact

Other Extension Metadata

Last Modified Date
2017-03-21
IP Status
No known IP claims.
Interactions and External Dependencies
Contributors
  • Dominik Witczak, AMD
  • Daniel Rakos, AMD
  • Graham Sellers, AMD
  • Matthaeus G. Chajdas, AMD
  • Qun Lin, AMD
  • Rex Xu, AMD
  • Timothy Lottes, AMD

Description

This extension adds two related features.

Firstly, support for the following SPIR-V extension in Vulkan is added:

  • SPV_AMD_texture_gather_bias_lod

Secondly, the extension allows the application to query which formats can be used together with the new function prototypes introduced by the SPIR-V extension.

New Structures

New Enum Constants

New SPIR-V Capabilities

Examples

struct VkTextureLODGatherFormatPropertiesAMD
{
    VkStructureType sType;
    const void*     pNext;
    VkBool32        supportsTextureGatherLODBiasAMD;
};

// ----------------------------------------------------------------------------------------
// How to detect if an image format can be used with the new function prototypes.
VkPhysicalDeviceImageFormatInfo2   formatInfo;
VkImageFormatProperties2           formatProps;
VkTextureLODGatherFormatPropertiesAMD textureLODGatherSupport;

textureLODGatherSupport.sType = VK_STRUCTURE_TYPE_TEXTURE_LOD_GATHER_FORMAT_PROPERTIES_AMD;
textureLODGatherSupport.pNext = nullptr;

formatInfo.sType  = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_IMAGE_FORMAT_INFO_2;
formatInfo.pNext  = nullptr;
formatInfo.format = ...;
formatInfo.type   = ...;
formatInfo.tiling = ...;
formatInfo.usage  = ...;
formatInfo.flags  = ...;

formatProps.sType = VK_STRUCTURE_TYPE_IMAGE_FORMAT_PROPERTIES_2;
formatProps.pNext = &textureLODGatherSupport;

vkGetPhysicalDeviceImageFormatProperties2(physical_device, &formatInfo, &formatProps);

if (textureLODGatherSupport.supportsTextureGatherLODBiasAMD == VK_TRUE)
{
    // physical device supports SPV_AMD_texture_gather_bias_lod for the specified
    // format configuration.
}
else
{
    // physical device does not support SPV_AMD_texture_gather_bias_lod for the
    // specified format configuration.
}

Version History

  • Revision 1, 2017-03-21 (Dominik Witczak)

    • Initial draft

See Also

TextureLODGatherFormatPropertiesAMD

Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Synopsis

Documentation

data TextureLODGatherFormatPropertiesAMD Source #

VkTextureLODGatherFormatPropertiesAMD - Structure informing whether or not texture gather bias/LOD functionality is supported for a given image format and a given physical device.

Valid Usage (Implicit)

See Also

Bool32, StructureType

Constructors

TextureLODGatherFormatPropertiesAMD 

Fields

  • supportsTextureGatherLODBiasAMD :: Bool

    supportsTextureGatherLODBiasAMD tells if the image format can be used with texture gather bias/LOD functions, as introduced by the VK_AMD_texture_gather_bias_lod extension. This field is set by the implementation. User-specified value is ignored.

Instances

Instances details
Eq TextureLODGatherFormatPropertiesAMD Source # 
Instance details

Defined in Vulkan.Extensions.VK_AMD_texture_gather_bias_lod

Show TextureLODGatherFormatPropertiesAMD Source # 
Instance details

Defined in Vulkan.Extensions.VK_AMD_texture_gather_bias_lod

Storable TextureLODGatherFormatPropertiesAMD Source # 
Instance details

Defined in Vulkan.Extensions.VK_AMD_texture_gather_bias_lod

FromCStruct TextureLODGatherFormatPropertiesAMD Source # 
Instance details

Defined in Vulkan.Extensions.VK_AMD_texture_gather_bias_lod

ToCStruct TextureLODGatherFormatPropertiesAMD Source # 
Instance details

Defined in Vulkan.Extensions.VK_AMD_texture_gather_bias_lod

Zero TextureLODGatherFormatPropertiesAMD Source # 
Instance details

Defined in Vulkan.Extensions.VK_AMD_texture_gather_bias_lod

type AMD_TEXTURE_GATHER_BIAS_LOD_EXTENSION_NAME = "VK_AMD_texture_gather_bias_lod" Source #