content: {-# language CPP #-}
  -- | = Name
  --
  -- VK_EXT_shader_viewport_index_layer - device extension
  --
  -- == VK_EXT_shader_viewport_index_layer
  --
  -- [__Name String__]
  --     @VK_EXT_shader_viewport_index_layer@
  --
  -- [__Extension Type__]
  --     Device extension
  --
  -- [__Registered Extension Number__]
  --     163
  --
  -- [__Revision__]
  --     1
  --
  -- [__Ratification Status__]
  --     Not ratified
  --
  -- [__Extension and Version Dependencies__]
  --     None
  --
  -- [__SPIR-V Dependencies__]
  --
  --     -   <https://htmlpreview.github.io/?https://github.com/KhronosGroup/SPIRV-Registry/blob/master/extensions/EXT/SPV_EXT_shader_viewport_index_layer.html SPV_EXT_shader_viewport_index_layer>
  --
  -- [__Deprecation State__]
  --
  --     -   /Promoted/ to
  --         <https://www.khronos.org/registry/vulkan/specs/1.2-extensions/html/vkspec.html#versions-1.2-promotions Vulkan 1.2>
  --
  -- [__Contact__]
  --
  --     -   Daniel Koch
  --         <https://github.com/KhronosGroup/Vulkan-Docs/issues/new?body=[VK_EXT_shader_viewport_index_layer] @dgkoch%0A*Here describe the issue or question you have about the VK_EXT_shader_viewport_index_layer extension* >
  --
  -- == Other Extension Metadata
  --
  -- [__Last Modified Date__]
  --     2017-08-08
  --
  -- [__Interactions and External Dependencies__]
  --
  --     -   This extension provides API support for
  --         <https://registry.khronos.org/OpenGL/extensions/ARB/ARB_shader_viewport_layer_array.txt GL_ARB_shader_viewport_layer_array>,
  --         <https://registry.khronos.org/OpenGL/extensions/AMD/AMD_vertex_shader_layer.txt GL_AMD_vertex_shader_layer>,
  --         <https://registry.khronos.org/OpenGL/extensions/AMD/AMD_vertex_shader_viewport_index.txt GL_AMD_vertex_shader_viewport_index>,
  --         and
  --         <https://registry.khronos.org/OpenGL/extensions/NV/NV_viewport_array2.txt GL_NV_viewport_array2>
  --
  --     -   This extension requires the @multiViewport@ feature.
  --
  --     -   This extension interacts with the @tessellationShader@ feature.
  --
  -- [__Contributors__]
  --
  --     -   Piers Daniell, NVIDIA
  --
  --     -   Jeff Bolz, NVIDIA
  --
  --     -   Jan-Harald Fredriksen, ARM
  --
  --     -   Daniel Rakos, AMD
  --
  --     -   Slawomir Grajeswki, Intel
  --
  -- == Description
  --
  -- This extension adds support for the @ShaderViewportIndexLayerEXT@
  -- capability from the @SPV_EXT_shader_viewport_index_layer@ extension in
  -- Vulkan.
  --
  -- This extension allows variables decorated with the @Layer@ and
  -- @ViewportIndex@ built-ins to be exported from vertex or tessellation
  -- shaders, using the @ShaderViewportIndexLayerEXT@ capability.
  --
  -- When using GLSL source-based shading languages, the @gl_ViewportIndex@
  -- and @gl_Layer@ built-in variables map to the SPIR-V @ViewportIndex@ and
  -- @Layer@ built-in decorations, respectively. Behaviour of these variables
  -- is extended as described in the @GL_ARB_shader_viewport_layer_array@ (or
  -- the precursor @GL_AMD_vertex_shader_layer@,
  -- @GL_AMD_vertex_shader_viewport_index@, and @GL_NV_viewport_array2@
  -- extensions).
  --
  -- Note
  --
  -- The @ShaderViewportIndexLayerEXT@ capability is equivalent to the
  -- @ShaderViewportIndexLayerNV@ capability added by
  -- @VK_NV_viewport_array2@.
  --
  -- == Promotion to Vulkan 1.2
  --
  -- All functionality in this extension is included in core Vulkan 1.2.
  --
  -- The single @ShaderViewportIndexLayerEXT@ capability from the
  -- @SPV_EXT_shader_viewport_index_layer@ extension is replaced by the
  -- <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#spirvenv-capabilities-table-ShaderViewportIndex ShaderViewportIndex>
  -- and
  -- <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#spirvenv-capabilities-table-ShaderLayer ShaderLayer>
  -- capabilities from SPIR-V 1.5 which are enabled by the
  -- <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#features-shaderOutputViewportIndex shaderOutputViewportIndex>
  -- and
  -- <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#features-shaderOutputLayer shaderOutputLayer>
  -- features, respectively. Additionally, if Vulkan 1.2 is supported but
  -- this extension is not, these capabilities are optional.
  --
  -- Enabling both features is equivalent to enabling the
  -- @VK_EXT_shader_viewport_index_layer@ extension.
  --
  -- == New Enum Constants
  --
  -- -   'EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME'
  --
  -- -   'EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION'
  --
  -- == New or Modified Built-In Variables
  --
  -- -   (modified)
  --     <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#interfaces-builtin-variables-layer Layer>
  --
  -- -   (modified)
  --     <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#interfaces-builtin-variables-viewportindex ViewportIndex>
  --
  -- == New SPIR-V Capabilities
  --
  -- -   <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#spirvenv-capabilities-table-ShaderViewportIndexLayerEXT ShaderViewportIndexLayerEXT>
  --
  -- == Version History
  --
  -- -   Revision 1, 2017-08-08 (Daniel Koch)
  --
  --     -   Internal drafts
  --
  -- == See Also
  --
  -- No cross-references are available
  --
  -- == Document Notes
  --
  -- For more information, see the
  -- <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#VK_EXT_shader_viewport_index_layer Vulkan Specification>
  --
  -- This page is a generated document. Fixes and changes should be made to
  -- the generator scripts, not directly.
  module Vulkan.Extensions.VK_EXT_shader_viewport_index_layer  ( EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION
                                                               , pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION
                                                               , EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME
                                                               , pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME
                                                               ) where
  
  import Data.String (IsString)
  
  type EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION = 1
  
  -- No documentation found for TopLevel "VK_EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION"
  pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION :: forall a . Integral a => a
  pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_SPEC_VERSION = 1
  
  
  type EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME = "VK_EXT_shader_viewport_index_layer"
  
  -- No documentation found for TopLevel "VK_EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME"
  pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME :: forall a . (Eq a, IsString a) => a
  pattern EXT_SHADER_VIEWPORT_INDEX_LAYER_EXTENSION_NAME = "VK_EXT_shader_viewport_index_layer"
  
  