Package org.lwjgl.vulkan
Class AMDTextureGatherBiasLod
java.lang.Object
org.lwjgl.vulkan.AMDTextureGatherBiasLod
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.
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.
}
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
VK_KHR_get_physical_device_properties2
- Contact
- Rex Xu amdrexu
Other Extension Metadata
- Last Modified Date
- 2017-03-21
- IP Status
- No known IP claims.
- Interactions and External Dependencies
- This extension requires
SPV_AMD_texture_gather_bias_lod
- This extension provides API support for
GL_AMD_texture_gather_bias_lod
- This extension requires
- Contributors
- Dominik Witczak, AMD
- Daniel Rakos, AMD
- Graham Sellers, AMD
- Matthaeus G. Chajdas, AMD
- Qun Lin, AMD
- Rex Xu, AMD
- Timothy Lottes, AMD
-
Field Summary
Modifier and TypeFieldDescriptionstatic final String
The extension name.static final int
The extension specification version.static final int
ExtendsVkStructureType
. -
Method Summary
-
Field Details
-
VK_AMD_TEXTURE_GATHER_BIAS_LOD_SPEC_VERSION
public static final int VK_AMD_TEXTURE_GATHER_BIAS_LOD_SPEC_VERSIONThe extension specification version.- See Also:
-
VK_AMD_TEXTURE_GATHER_BIAS_LOD_EXTENSION_NAME
The extension name.- See Also:
-
VK_STRUCTURE_TYPE_TEXTURE_LOD_GATHER_FORMAT_PROPERTIES_AMD
public static final int VK_STRUCTURE_TYPE_TEXTURE_LOD_GATHER_FORMAT_PROPERTIES_AMDExtendsVkStructureType
.- See Also:
-