content: {-# language CPP #-}
  -- | = Name
  --
  -- VK_AMD_shader_fragment_mask - device extension
  --
  -- == VK_AMD_shader_fragment_mask
  --
  -- [__Name String__]
  --     @VK_AMD_shader_fragment_mask@
  --
  -- [__Extension Type__]
  --     Device extension
  --
  -- [__Registered Extension Number__]
  --     138
  --
  -- [__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/AMD/SPV_AMD_shader_fragment_mask.html SPV_AMD_shader_fragment_mask>
  --
  -- [__Contact__]
  --
  --     -   Aaron Hagan
  --         <https://github.com/KhronosGroup/Vulkan-Docs/issues/new?body=[VK_AMD_shader_fragment_mask] @AaronHaganAMD%0A*Here describe the issue or question you have about the VK_AMD_shader_fragment_mask extension* >
  --
  -- == Other Extension Metadata
  --
  -- [__Last Modified Date__]
  --     2017-08-16
  --
  -- [__IP Status__]
  --     No known IP claims.
  --
  -- [__Interactions and External Dependencies__]
  --
  --     -   This extension provides API support for
  --         <https://github.com/KhronosGroup/GLSL/blob/master/extensions/amd/GL_AMD_shader_fragment_mask.txt GL_AMD_shader_fragment_mask>
  --
  -- [__Contributors__]
  --
  --     -   Aaron Hagan, AMD
  --
  --     -   Daniel Rakos, AMD
  --
  --     -   Timothy Lottes, AMD
  --
  -- == Description
  --
  -- This extension provides efficient read access to the fragment mask in
  -- compressed multisampled color surfaces. The fragment mask is a lookup
  -- table that associates color samples with color fragment values.
  --
  -- From a shader, the fragment mask can be fetched with a call to
  -- @fragmentMaskFetchAMD@, which returns a single @uint@ where each
  -- subsequent four bits specify the color fragment index corresponding to
  -- the color sample, starting from the least significant bit. For example,
  -- when eight color samples are used, the color fragment index for color
  -- sample 0 will be in bits 0-3 of the fragment mask, for color sample 7
  -- the index will be in bits 28-31.
  --
  -- The color fragment for a particular color sample may then be fetched
  -- with the corresponding fragment mask value using the @fragmentFetchAMD@
  -- shader function.
  --
  -- == New Enum Constants
  --
  -- -   'AMD_SHADER_FRAGMENT_MASK_EXTENSION_NAME'
  --
  -- -   'AMD_SHADER_FRAGMENT_MASK_SPEC_VERSION'
  --
  -- == New SPIR-V Capabilities
  --
  -- -   <https://registry.khronos.org/vulkan/specs/1.3-extensions/html/vkspec.html#spirvenv-capabilities-table-FragmentMaskAMD FragmentMaskAMD>
  --
  -- == Examples
  --
  -- This example shows a shader that queries the fragment mask from a
  -- multisampled compressed surface and uses it to query fragment values.
  --
  -- > #version 450 core
  -- >
  -- > #extension GL_AMD_shader_fragment_mask: enable
  -- >
  -- > layout(binding = 0) uniform sampler2DMS       s2DMS;
  -- > layout(binding = 1) uniform isampler2DMSArray is2DMSArray;
  -- >
  -- > layout(binding = 2, input_attachment_index = 0) uniform usubpassInputMS usubpassMS;
  -- >
  -- > layout(location = 0) out vec4 fragColor;
  -- >
  -- > void main()
  -- > {
  -- >     vec4 fragOne = vec4(0.0);
  -- >
  -- >     uint fragMask = fragmentMaskFetchAMD(s2DMS, ivec2(2, 3));
  -- >     uint fragIndex = (fragMask & 0xF0) >> 4;
  -- >     fragOne += fragmentFetchAMD(s2DMS, ivec2(2, 3), 1);
  -- >
  -- >     fragMask = fragmentMaskFetchAMD(is2DMSArray, ivec3(2, 3, 1));
  -- >     fragIndex = (fragMask & 0xF0) >> 4;
  -- >     fragOne += fragmentFetchAMD(is2DMSArray, ivec3(2, 3, 1), fragIndex);
  -- >
  -- >     fragMask = fragmentMaskFetchAMD(usubpassMS);
  -- >     fragIndex = (fragMask & 0xF0) >> 4;
  -- >     fragOne += fragmentFetchAMD(usubpassMS, fragIndex);
  -- >
  -- >     fragColor = fragOne;
  -- > }
  --
  -- == Version History
  --
  -- -   Revision 1, 2017-08-16 (Aaron Hagan)
  --
  --     -   Initial draft
  --
  -- == 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_AMD_shader_fragment_mask Vulkan Specification>
  --
  -- This page is a generated document. Fixes and changes should be made to
  -- the generator scripts, not directly.
  module Vulkan.Extensions.VK_AMD_shader_fragment_mask  ( AMD_SHADER_FRAGMENT_MASK_SPEC_VERSION
                                                        , pattern AMD_SHADER_FRAGMENT_MASK_SPEC_VERSION
                                                        , AMD_SHADER_FRAGMENT_MASK_EXTENSION_NAME
                                                        , pattern AMD_SHADER_FRAGMENT_MASK_EXTENSION_NAME
                                                        ) where
  
  import Data.String (IsString)
  
  type AMD_SHADER_FRAGMENT_MASK_SPEC_VERSION = 1
  
  -- No documentation found for TopLevel "VK_AMD_SHADER_FRAGMENT_MASK_SPEC_VERSION"
  pattern AMD_SHADER_FRAGMENT_MASK_SPEC_VERSION :: forall a . Integral a => a
  pattern AMD_SHADER_FRAGMENT_MASK_SPEC_VERSION = 1
  
  
  type AMD_SHADER_FRAGMENT_MASK_EXTENSION_NAME = "VK_AMD_shader_fragment_mask"
  
  -- No documentation found for TopLevel "VK_AMD_SHADER_FRAGMENT_MASK_EXTENSION_NAME"
  pattern AMD_SHADER_FRAGMENT_MASK_EXTENSION_NAME :: forall a . (Eq a, IsString a) => a
  pattern AMD_SHADER_FRAGMENT_MASK_EXTENSION_NAME = "VK_AMD_shader_fragment_mask"
  
  