windowsRuntimeInstaller/ConfigLayersAndVulkanDLL.ps1 - platform/external/vulkan-validation-layers - Git at Google

 # Copyright (c) 2015-2016 The Khronos Group Inc.
 # Copyright (c) 2015-2016 Valve Corporation
 # Copyright (c) 2015-2016 LunarG, Inc.
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and/or associated documentation files (the "Materials"), to
 # deal in the Materials without restriction, including without limitation the
 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 # sell copies of the Materials, and to permit persons to whom the Materials are
 # furnished to do so, subject to the following conditions:
 #
 # The above copyright notice(s) and this permission notice shall be included in
 # all copies or substantial portions of the Materials.
 #
 # THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 #
 # IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
 # DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
 # OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
 # USE OR OTHER DEALINGS IN THE MATERIALS.
 #
 # Author: David Pinedo <[email protected]>
 # Author: Mark Young <[email protected]>
 #


 # This Powershell script is used by the Vulkan Run Time Installer/Uninstaller to:
 #   - Copy the most recent vulkan-<majorabi>-*.dll in C:\Windows\System32
 #     to vulkan-<majorabi>.dll
 #   - Copy the most recent version of vulkaninfo-<abimajor>-*.exe in
 #     C:\Windows\System32 to vulkaninfo.exe
 #   - The same thing is done for those files in C:\Windows\SysWOW64 on a 64-bit
 #     target.
 #   - Set the layer registry entries to point to the layer json files
 #     in the Vulkan SDK associated with the most recent vulkan*dll.
 #
 # This script takes the following parameters:
 #   $majorabi : a single string number specifying the major abi version.
 #   $ossize     : an integer indicating if the target is a 64 (64) or 32 (32) bit OS.
 #

 Param(
  [string]$majorabi,
  [int]$ossize
 )

 $vulkandll = "vulkan-"+$majorabi+".dll"
 $windrive  = $env:SYSTEMDRIVE
 $winfolder = $env:SYSTEMROOT

 # The name of the versioned vulkan dll file is one of the following:
 #
 #   vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>-<prerelease>-<prebuildno>
 #   vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>-<prerelease>
 #   vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>-<prebuildno>
 #   vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>.dll
 #
 # <major>, <minor>, <patch>, <buildno> and <prebuildno> are 1 to 10 numeric digits.
 # <prerelease> is any combination of alpha and numeric characters.
 # If <prerelease> and/or <prebuildno> are present, this identifies a prerelease,
 # and the vulkan dll file will be considered less recent than one with the same
 # <major>, <minor>, <patch>, <buildno> numbers without the <prerelease> and/or
 # <prebuildno>.


 # We first create an array, with one array element for each vulkan-*dll in
 # C:\Windows\System32 (and C:\Windows\SysWOW64 on 64-bit systems), with each element
 # containing:
 #    <major>=<minor>=<patch>=<buildno>=<prerelease>=<prebuildno>=
 #     filename
 #    @<major>@<minor>@<patch>@<buildno>@<prerelease>@<prebuildno>@
 # [Note that the above three lines are one element in the array.]
 # The build identifiers separated by "=" are suitable for sorting, i.e.
 # expanded to 10 digits with leading 0s. If <prerelease> or <prebuildno> are
 # not specified, "zzzzzzzzzz" is substituted for them, so that they sort
 # to a position after those that do specify them.
 # The build identifiers separated by "@" are the original values extracted
 # from the file name. They are used later to find the path to the SDK
 # install directory for the given filename.

 function UpdateVulkanSysFolder([string]$dir, [int]$writeSdkName)
 {
    # Push the current path on the stack and go to $dir
    Push-Location -Path $dir

    # Create a list for all the DLLs in the folder
    $VulkanDllList=@()

    # Find all DLL objects in this directory
    dir -name vulkan-$majorabi-*.dll |
    ForEach-Object {
        $major=$_.Split('-')[2]
        $majorOrig=$major
        $minor=$_.Split('-')[3]
        $minorOrig=$minor
        $patch=$_.Split('-')[4]
        $patchOrig=$patch
        $buildno=$_.Split('-')[5]

        if ($buildno -match ".dll") {
            # <prerelease> and <prebuildno> are not in the name
            $buildno=$buildno -replace ".dll",""
            $buildnoOrig=$buildno
            $prerelease="z"*10
            $prereleaseOrig=""
            $prebuildno="z"*10
            $prebuildnoOrig=""
        } else {

           # We assume we don't have more than 5 dashes

           $f=$_ -replace ".dll",""
           $buildno=$f.Split('-')[5]
           $buildnoOrig=$buildno
           $prerelease=$f.Split('-')[6]
           $prebuildno=$f.Split('-')[7]
           if ($prebuildno.Length -eq 0) {
               if ($prerelease -match "^[0-9]") {
                   # prerelease starts with a digit, it must be the prebuildno
                   $prebuildno=$prerelease
                   $prerelease=""
               }
           }
           $prereleaseOrig=$prerelease
           $prebuildnoOrig=$prebuildno

           if ($prerelease.Length -eq 0) {
               $prerelease="z"*10
           }
           if ($prebuildno.Length -eq 0) {
               $prebuildno="z"*10
           }
        }

        $major = $major.padleft(10,'0')
        $minor = $minor.padleft(10,'0')
        $patch = $patch.padleft(10,'0')
        $buildno = $buildno.padleft(10,'0')
        $prerelease = $prerelease.padleft(10,'0')
        $prebuildno = $prebuildno.padleft(10,'0')

        # Add a new element to the $VulkanDllList array
        $VulkanDllList+="$major=$minor=$patch=$buildno=$prerelease=$prebuildno= $_ @$majorOrig@$minorOrig@$patchOrig@$buildnoOrig@$prereleaseOrig@$prebuildnoOrig@"
    }

     # If $VulkanDllList contains at least one element, there's at least one vulkan*.dll file.
     # Copy the most recent vulkan*.dll (named in the last element of $VulkanDllList) to vulkan-$majorabi.dll.

     if ($VulkanDllList.Length -gt 0) {

         # Sort the list. The most recent vulkan-*.dll will be in the last element of the list.
         [array]::sort($VulkanDllList)

         # Put the name of the most recent vulkan-*.dll in $mrVulkanDLL.
         # The most recent vulkanDLL is the second word in the last element of the
         # sorted $VulkanDllList. Copy it to $vulkandll.
         $mrVulkanDll=$VulkanDllList[-1].Split(' ')[1]
         copy $mrVulkanDll $vulkandll

         # Copy the most recent version of vulkaninfo-<abimajor>-*.exe to vulkaninfo.exe.
         # We create the source file name for the copy from $mrVulkanDll.
         $mrVulkaninfo=$mrVulkanDll -replace ".dll",".exe"
         $mrVulkaninfo=$mrVulkaninfo -replace "vulkan","vulkaninfo"
         copy $mrVulkaninfo vulkaninfo.exe

         # Create the name used in the registry for the SDK associated with $mrVulkanDll.
         $major=$VulkanDLLList[-1].Split('@')[1]
         $minor=$VulkanDLLList[-1].Split('@')[2]
         $patch=$VulkanDLLList[-1].Split('@')[3]
         $buildno=$VulkanDLLList[-1].Split('@')[4]
         $prerelease=$VulkanDLLList[-1].Split('@')[5]
         $prebuildno=$VulkanDLLList[-1].Split('@')[6]

         $sdktempname="VulkanSDK"+$major + "." + $minor + "." + $patch + "." + $buildno
         if ($prerelease -ne "") {
             $sdktempname=$sdktempname + "." + $prerelease
         }
         if ($prebuildno -ne "") {
             $sdktempname=$sdktempname + "." + $prebuildno
         }
     }

     # Return to our previous folder
     Pop-Location

     # Only update the overall script-scope SDK name if we're told to
     if ($writeSdkName -ne 0) {
         $script:sdkname = $sdktempname
     }

     return
 }

 # We only care about SYSWOW64 if we're targeting a 64-bit OS
 if ($ossize -eq 64) {
     # Update the SYSWOW64 Vulkan DLLS/EXEs
     UpdateVulkanSysFolder $winfolder\SYSWOW64 0
 }

 # Update the SYSTEM32 Vulkan DLLS/EXEs
 UpdateVulkanSysFolder $winfolder\SYSTEM32 1

 # Create an array of vulkan sdk install dirs

 $mrVulkanDllInstallDir=""
 $VulkanSdkDirs=@()
 Get-ChildItem -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall |
    ForEach-Object {
        $regkey=$_ -replace ".*\\",""
        if ($_ -match "\\VulkanSDK") {
            # Get the install path from UninstallString
            $tmp=Get-ItemProperty -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$regkey -Name UninstallString
            $tmp=$tmp -replace "\\Uninstall.exe.*",""
            $tmp=$tmp -replace ".*=.",""
            $VulkanSdkDirs+=$tmp
            if ($regkey -eq $script:sdkname) {
                # Save away the sdk install dir for the the most recent vulkandll
                $mrVulkanDllInstallDir=$tmp
            }
        }
    }

 # Add C:\Vulkan\SDK\0.9.3 to list of SDK install dirs.
 # We do this because there is in a bug in SDK 0.9.3 in which layer
 # reg entries were not removed on uninstall. So we'll try to clean up
 # and remove them now.
 # This works only if 0.9.3 was installed to the default location.
 # If it was not installed to the default location, those entries will
 # need to be cleaned up manually.

 $VulkanSdkDirs+="C:\VulkanSDK\0.9.3"
 $VulkanSdkDirs+="$windrive\VulkanSDK\0.9.3"

 # Remove layer registry entries associated with all installed Vulkan SDKs.
 # Note that we remove only those entries created by Vulkan SDKs. If other
 # layers were installed that are not from an SDK, we don't mess with them.

 Get-Item -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers | Select-Object -ExpandProperty Property |
    ForEach-Object {
        $regval=$_
        ForEach ($sdkdir in $VulkanSdkDirs) {
           if ($regval -like "$sdkdir\*.json") {
               Remove-ItemProperty -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers -name $regval
           }
        }
    }
 # Remove 32-bit layer registry entries if we're targeting a 64-bit OS
 if ($ossize -eq 64) {
    Get-Item -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers | Select-Object -ExpandProperty Property |
       ForEach-Object {
           $regval=$_
           ForEach ($sdkdir in $VulkanSdkDirs) {
              if ($regval -like "$sdkdir\*.json") {
                  Remove-ItemProperty -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers -name $regval
              }
           }
       }
 }


 # Create layer registry entries associated with Vulkan SDK from which $mrVulkanDll is from

 if ($mrVulkanDllInstallDir -ne "") {
     if ($ossize -eq 64) {

         # Create registry entires in normal registry location for 64-bit items on a 64-bit OS
         New-Item -Force -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers | out-null
         Get-ChildItem $mrVulkanDllInstallDir\Bin -Filter VkLayer*json |
            ForEach-Object {
                New-ItemProperty -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers -Name $mrVulkanDllInstallDir\Bin\$_ -PropertyType DWord -Value 0 | out-null
            }

         # Create registry entires for the WOW6432Node registry location for 32-bit items on a 64-bit OS
         New-Item -Force -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers | out-null
         Get-ChildItem $mrVulkanDllInstallDir\Bin32 -Filter VkLayer*json |
            ForEach-Object {
                New-ItemProperty -Path HKLM:\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers -Name $mrVulkanDllInstallDir\Bin32\$_ -PropertyType DWord -Value 0 | out-null
            }

     } else {

         # Create registry entires in normal registry location for 32-bit items on a 32-bit OS
         New-Item -Force -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers | out-null
         Get-ChildItem $mrVulkanDllInstallDir\Bin32 -Filter VkLayer*json |
            ForEach-Object {
                New-ItemProperty -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers -Name $mrVulkanDllInstallDir\Bin32\$_ -PropertyType DWord -Value 0 | out-null
            }

     }
 }
	# Copyright (c) 2015-2016 The Khronos Group Inc.
	# Copyright (c) 2015-2016 Valve Corporation
	# Copyright (c) 2015-2016 LunarG, Inc.
	#
	# Permission is hereby granted, free of charge, to any person obtaining a copy
	# of this software and/or associated documentation files (the "Materials"), to
	# deal in the Materials without restriction, including without limitation the
	# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
	# sell copies of the Materials, and to permit persons to whom the Materials are
	# furnished to do so, subject to the following conditions:
	#
	# The above copyright notice(s) and this permission notice shall be included in
	# all copies or substantial portions of the Materials.
	#
	# THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	#
	# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
	# DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
	# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE
	# USE OR OTHER DEALINGS IN THE MATERIALS.
	#
	# Author: David Pinedo <[email protected]>
	# Author: Mark Young <[email protected]>
	#


	# This Powershell script is used by the Vulkan Run Time Installer/Uninstaller to:
	# - Copy the most recent vulkan-<majorabi>-*.dll in C:\Windows\System32
	# to vulkan-<majorabi>.dll
	# - Copy the most recent version of vulkaninfo-<abimajor>-*.exe in
	# C:\Windows\System32 to vulkaninfo.exe
	# - The same thing is done for those files in C:\Windows\SysWOW64 on a 64-bit
	# target.
	# - Set the layer registry entries to point to the layer json files
	# in the Vulkan SDK associated with the most recent vulkan*dll.
	#
	# This script takes the following parameters:
	# $majorabi : a single string number specifying the major abi version.
	# $ossize : an integer indicating if the target is a 64 (64) or 32 (32) bit OS.
	#

	Param(
	[string]$majorabi,
	[int]$ossize
	)

	$vulkandll = "vulkan-"+$majorabi+".dll"
	$windrive = $env:SYSTEMDRIVE
	$winfolder = $env:SYSTEMROOT

	# The name of the versioned vulkan dll file is one of the following:
	#
	# vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>-<prerelease>-<prebuildno>
	# vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>-<prerelease>
	# vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>-<prebuildno>
	# vulkan-<majorabi>-<major>-<minor>-<patch>-<buildno>.dll
	#
	# <major>, <minor>, <patch>, <buildno> and <prebuildno> are 1 to 10 numeric digits.
	# <prerelease> is any combination of alpha and numeric characters.
	# If <prerelease> and/or <prebuildno> are present, this identifies a prerelease,
	# and the vulkan dll file will be considered less recent than one with the same
	# <major>, <minor>, <patch>, <buildno> numbers without the <prerelease> and/or
	# <prebuildno>.


	# We first create an array, with one array element for each vulkan-*dll in
	# C:\Windows\System32 (and C:\Windows\SysWOW64 on 64-bit systems), with each element
	# containing:
	# <major>=<minor>=<patch>=<buildno>=<prerelease>=<prebuildno>=
	# filename
	# @<major>@<minor>@<patch>@<buildno>@<prerelease>@<prebuildno>@
	# [Note that the above three lines are one element in the array.]
	# The build identifiers separated by "=" are suitable for sorting, i.e.
	# expanded to 10 digits with leading 0s. If <prerelease> or <prebuildno> are
	# not specified, "zzzzzzzzzz" is substituted for them, so that they sort
	# to a position after those that do specify them.
	# The build identifiers separated by "@" are the original values extracted
	# from the file name. They are used later to find the path to the SDK
	# install directory for the given filename.

	function UpdateVulkanSysFolder([string]$dir, [int]$writeSdkName)
	{
	# Push the current path on the stack and go to $dir
	Push-Location -Path $dir

	# Create a list for all the DLLs in the folder
	$VulkanDllList=@()

	# Find all DLL objects in this directory
	dir -name vulkan-$majorabi-*.dll \|
	ForEach-Object {
	$major=$_.Split('-')[2]
	$majorOrig=$major
	$minor=$_.Split('-')[3]
	$minorOrig=$minor
	$patch=$_.Split('-')[4]
	$patchOrig=$patch
	$buildno=$_.Split('-')[5]

	if ($buildno -match ".dll") {
	# <prerelease> and <prebuildno> are not in the name
	$buildno=$buildno -replace ".dll",""
	$buildnoOrig=$buildno
	$prerelease="z"*10
	$prereleaseOrig=""
	$prebuildno="z"*10
	$prebuildnoOrig=""
	} else {

	# We assume we don't have more than 5 dashes

	$f=$_ -replace ".dll",""
	$buildno=$f.Split('-')[5]
	$buildnoOrig=$buildno
	$prerelease=$f.Split('-')[6]
	$prebuildno=$f.Split('-')[7]
	if ($prebuildno.Length -eq 0) {
	if ($prerelease -match "^[0-9]") {
	# prerelease starts with a digit, it must be the prebuildno
	$prebuildno=$prerelease
	$prerelease=""
	}
	}
	$prereleaseOrig=$prerelease
	$prebuildnoOrig=$prebuildno

	if ($prerelease.Length -eq 0) {
	$prerelease="z"*10
	}
	if ($prebuildno.Length -eq 0) {
	$prebuildno="z"*10
	}
	}

	$major = $major.padleft(10,'0')
	$minor = $minor.padleft(10,'0')
	$patch = $patch.padleft(10,'0')
	$buildno = $buildno.padleft(10,'0')
	$prerelease = $prerelease.padleft(10,'0')
	$prebuildno = $prebuildno.padleft(10,'0')

	# Add a new element to the $VulkanDllList array
	$VulkanDllList+="$major=$minor=$patch=$buildno=$prerelease=$prebuildno= $_ @$majorOrig@$minorOrig@$patchOrig@$buildnoOrig@$prereleaseOrig@$prebuildnoOrig@"
	}

	# If $VulkanDllList contains at least one element, there's at least one vulkan*.dll file.
	# Copy the most recent vulkan*.dll (named in the last element of $VulkanDllList) to vulkan-$majorabi.dll.

	if ($VulkanDllList.Length -gt 0) {

	# Sort the list. The most recent vulkan-*.dll will be in the last element of the list.
	[array]::sort($VulkanDllList)

	# Put the name of the most recent vulkan-*.dll in $mrVulkanDLL.
	# The most recent vulkanDLL is the second word in the last element of the
	# sorted $VulkanDllList. Copy it to $vulkandll.
	$mrVulkanDll=$VulkanDllList[-1].Split(' ')[1]
	copy $mrVulkanDll $vulkandll

	# Copy the most recent version of vulkaninfo-<abimajor>-*.exe to vulkaninfo.exe.
	# We create the source file name for the copy from $mrVulkanDll.
	$mrVulkaninfo=$mrVulkanDll -replace ".dll",".exe"
	$mrVulkaninfo=$mrVulkaninfo -replace "vulkan","vulkaninfo"
	copy $mrVulkaninfo vulkaninfo.exe

	# Create the name used in the registry for the SDK associated with $mrVulkanDll.
	$major=$VulkanDLLList[-1].Split('@')[1]
	$minor=$VulkanDLLList[-1].Split('@')[2]
	$patch=$VulkanDLLList[-1].Split('@')[3]
	$buildno=$VulkanDLLList[-1].Split('@')[4]
	$prerelease=$VulkanDLLList[-1].Split('@')[5]
	$prebuildno=$VulkanDLLList[-1].Split('@')[6]

	$sdktempname="VulkanSDK"+$major + "." + $minor + "." + $patch + "." + $buildno
	if ($prerelease -ne "") {
	$sdktempname=$sdktempname + "." + $prerelease
	}
	if ($prebuildno -ne "") {
	$sdktempname=$sdktempname + "." + $prebuildno
	}
	}

	# Return to our previous folder
	Pop-Location

	# Only update the overall script-scope SDK name if we're told to
	if ($writeSdkName -ne 0) {
	$script:sdkname = $sdktempname
	}

	return
	}

	# We only care about SYSWOW64 if we're targeting a 64-bit OS
	if ($ossize -eq 64) {
	# Update the SYSWOW64 Vulkan DLLS/EXEs
	UpdateVulkanSysFolder $winfolder\SYSWOW64 0
	}

	# Update the SYSTEM32 Vulkan DLLS/EXEs
	UpdateVulkanSysFolder $winfolder\SYSTEM32 1

	# Create an array of vulkan sdk install dirs

	$mrVulkanDllInstallDir=""
	$VulkanSdkDirs=@()
	Get-ChildItem -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall \|
	ForEach-Object {
	$regkey=$_ -replace ".*\\",""
	if ($_ -match "\\VulkanSDK") {
	# Get the install path from UninstallString
	$tmp=Get-ItemProperty -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$regkey -Name UninstallString
	$tmp=$tmp -replace "\\Uninstall.exe.*",""
	$tmp=$tmp -replace ".*=.",""
	$VulkanSdkDirs+=$tmp
	if ($regkey -eq $script:sdkname) {
	# Save away the sdk install dir for the the most recent vulkandll
	$mrVulkanDllInstallDir=$tmp
	}
	}
	}

	# Add C:\Vulkan\SDK\0.9.3 to list of SDK install dirs.
	# We do this because there is in a bug in SDK 0.9.3 in which layer
	# reg entries were not removed on uninstall. So we'll try to clean up
	# and remove them now.
	# This works only if 0.9.3 was installed to the default location.
	# If it was not installed to the default location, those entries will
	# need to be cleaned up manually.

	$VulkanSdkDirs+="C:\VulkanSDK\0.9.3"
	$VulkanSdkDirs+="$windrive\VulkanSDK\0.9.3"

	# Remove layer registry entries associated with all installed Vulkan SDKs.
	# Note that we remove only those entries created by Vulkan SDKs. If other
	# layers were installed that are not from an SDK, we don't mess with them.

	Get-Item -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Khronos\Vulkan\ExplicitLayers \| Select-Object -ExpandProperty Property \|
	ForEach-Object {
	$regval=$_
	ForEach ($sdkdir in $VulkanSdkDirs) {
	if ($regval -like "$sdkdir\*.json") {
	Remove-ItemProperty -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers -name $regval
	}
	}
	}
	# Remove 32-bit layer registry entries if we're targeting a 64-bit OS
	if ($ossize -eq 64) {
	Get-Item -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers \| Select-Object -ExpandProperty Property \|
	ForEach-Object {
	$regval=$_
	ForEach ($sdkdir in $VulkanSdkDirs) {
	if ($regval -like "$sdkdir\*.json") {
	Remove-ItemProperty -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers -name $regval
	}
	}
	}
	}


	# Create layer registry entries associated with Vulkan SDK from which $mrVulkanDll is from

	if ($mrVulkanDllInstallDir -ne "") {
	if ($ossize -eq 64) {

	# Create registry entires in normal registry location for 64-bit items on a 64-bit OS
	New-Item -Force -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers \| out-null
	Get-ChildItem $mrVulkanDllInstallDir\Bin -Filter VkLayer*json \|
	ForEach-Object {
	New-ItemProperty -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers -Name $mrVulkanDllInstallDir\Bin\$_ -PropertyType DWord -Value 0 \| out-null
	}

	# Create registry entires for the WOW6432Node registry location for 32-bit items on a 64-bit OS
	New-Item -Force -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers \| out-null
	Get-ChildItem $mrVulkanDllInstallDir\Bin32 -Filter VkLayer*json \|
	ForEach-Object {
	New-ItemProperty -Path HKLM:\SOFTWARE\WOW6432Node\Khronos\Vulkan\ExplicitLayers -Name $mrVulkanDllInstallDir\Bin32\$_ -PropertyType DWord -Value 0 \| out-null
	}

	} else {

	# Create registry entires in normal registry location for 32-bit items on a 32-bit OS
	New-Item -Force -ErrorAction SilentlyContinue -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers \| out-null
	Get-ChildItem $mrVulkanDllInstallDir\Bin32 -Filter VkLayer*json \|
	ForEach-Object {
	New-ItemProperty -Path HKLM:\SOFTWARE\Khronos\Vulkan\ExplicitLayers -Name $mrVulkanDllInstallDir\Bin32\$_ -PropertyType DWord -Value 0 \| out-null
	}

	}
	}