Function Prototype

vkGetShaderModuleIdentifierEXT

Query a unique identifier for a shader module

Shader modules have unique identifiers associated with them. To query an implementation provided identifier, call:

void vkGetShaderModuleIdentifierEXT(
    VkDevice device,
    VkShaderModule shaderModule,
    VkShaderModuleIdentifierEXT* pIdentifier);
  • device is the logical device that created the shader module.
  • shaderModule is the handle of the shader module.
  • pIdentifier is a pointer to the returned VkShaderModuleIdentifierEXT.

The identifier returned by the implementation must only depend on shaderIdentifierAlgorithmUUID and information provided in the VkShaderModuleCreateInfo which created shaderModule. The implementation may return equal identifiers for two different VkShaderModuleCreateInfo structures if the difference does not affect pipeline compilation. Identifiers are only meaningful on different VkDevice objects if the device the identifier was queried from had the same shaderModuleIdentifierAlgorithmUUID as the device consuming the identifier.

Valid Usage (Implicit)

VUID-vkGetShaderModuleIdentifierEXT-shaderModule-parent

shaderModule must have been created, allocated, or retrieved from device