gen_framework.py

# -*- coding: utf-8 -*-

#-------------------------------------------------------------------------
# Vulkan CTS
# ----------
#
# Copyright (c) 2015 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
#-------------------------------------------------------------------------

import os
import re
import sys
import copy
import glob
import json
import argparse
from itertools import chain
from collections import OrderedDict

sys.path.append(os.path.join(os.path.dirname(__file__), "..", "..", "..", "scripts"))

from build.common import DEQP_DIR, execute
from khr_util.format import indentLines, writeInlFile

VULKAN_HEADERS_INCLUDE_DIR	= os.path.join(os.path.dirname(__file__), "..", "..", "vulkan-docs", "src", "include")
SCRIPTS_SRC_DIR				= os.path.join(os.path.dirname(__file__), "src")
DEFAULT_OUTPUT_DIR			= { "" :	os.path.join(os.path.dirname(__file__), "..", "framework", "vulkan", "generated", "vulkan"),
								"SC" :	os.path.join(os.path.dirname(__file__), "..", "framework", "vulkan", "generated", "vulkansc") }

INL_HEADER = """\
/* WARNING: This is auto-generated file. Do not modify, since changes will
 * be lost! Modify the generating script instead.
 * This file was generated by /scripts/gen_framework.py
 */\

"""

DEFINITIONS			= [
	("VK_MAX_PHYSICAL_DEVICE_NAME_SIZE",	"size_t"),
	("VK_MAX_EXTENSION_NAME_SIZE",			"size_t"),
	("VK_MAX_DRIVER_NAME_SIZE",				"size_t"),
	("VK_MAX_DRIVER_INFO_SIZE",				"size_t"),
	("VK_UUID_SIZE",						"size_t"),
	("VK_LUID_SIZE",						"size_t"),
	("VK_MAX_MEMORY_TYPES",					"size_t"),
	("VK_MAX_MEMORY_HEAPS",					"size_t"),
	("VK_MAX_DESCRIPTION_SIZE",				"size_t"),
	("VK_MAX_DEVICE_GROUP_SIZE",			"size_t"),
	("VK_ATTACHMENT_UNUSED",				"uint32_t"),
	("VK_SUBPASS_EXTERNAL",					"uint32_t"),
	("VK_QUEUE_FAMILY_IGNORED",				"uint32_t"),
	("VK_QUEUE_FAMILY_EXTERNAL",			"uint32_t"),
	("VK_REMAINING_MIP_LEVELS",				"uint32_t"),
	("VK_REMAINING_ARRAY_LAYERS",			"uint32_t"),
	("VK_WHOLE_SIZE",						"vk::VkDeviceSize"),
	("VK_TRUE",								"vk::VkBool32"),
	("VK_FALSE",							"vk::VkBool32"),
]

PLATFORM_TYPES		= [
	# VK_KHR_xlib_surface
	(["Display","*"],						["XlibDisplayPtr"],				"void*"),
	(["Window"],							["XlibWindow"],					"uintptr_t",),
	(["VisualID"],							["XlibVisualID"],				"uint32_t"),

	# VK_KHR_xcb_surface
	(["xcb_connection_t", "*"],				["XcbConnectionPtr"],			"void*"),
	(["xcb_window_t"],						["XcbWindow"],					"uintptr_t"),
	(["xcb_visualid_t"],					["XcbVisualid"],				"uint32_t"),

	# VK_KHR_wayland_surface
	(["struct", "wl_display","*"],			["WaylandDisplayPtr"],			"void*"),
	(["struct", "wl_surface", "*"],			["WaylandSurfacePtr"],			"void*"),

	# VK_KHR_mir_surface
	(["MirConnection", "*"],				["MirConnectionPtr"],			"void*"),
	(["MirSurface", "*"],					["MirSurfacePtr"],				"void*"),

	# VK_KHR_android_surface
	(["ANativeWindow", "*"],				["AndroidNativeWindowPtr"],		"void*"),

	# VK_KHR_win32_surface
	(["HINSTANCE"],							["Win32InstanceHandle"],		"void*"),
	(["HWND"],								["Win32WindowHandle"],			"void*"),
	(["HANDLE"],							["Win32Handle"],				"void*"),
	(["const", "SECURITY_ATTRIBUTES", "*"],	["Win32SecurityAttributesPtr"],	"const void*"),
	(["AHardwareBuffer", "*"],				["AndroidHardwareBufferPtr"],	"void*"),
	(["HMONITOR"],							["Win32MonitorHandle"],			"void*"),
	(["LPCWSTR"],							["Win32LPCWSTR"],				"const void*"),

	# VK_EXT_acquire_xlib_display
	(["RROutput"],							["RROutput"],					"void*"),

	(["zx_handle_t"],						["zx_handle_t"],				"uint32_t"),
	(["GgpFrameToken"],						["GgpFrameToken"],				"int32_t"),
	(["GgpStreamDescriptor"],				["GgpStreamDescriptor"],		"int32_t"),
	(["CAMetalLayer"],						["CAMetalLayer"],				"void*"),

	# VK_EXT_metal_objects
	(["MTLDevice_id"],						["MTLDevice_id"],				"void*"),
	(["MTLCommandQueue_id"],				["MTLCommandQueue_id"],			"void*"),
	(["MTLBuffer_id"],						["MTLBuffer_id"],				"void*"),
	(["MTLTexture_id"],						["MTLTexture_id"],				"void*"),
	(["IOSurfaceRef"],						["IOSurfaceRef"],				"void*"),
	(["MTLSharedEvent_id"],					["MTLSharedEvent_id"],			"void*"),
]

PLATFORM_TYPE_NAMESPACE	= "pt"

TYPE_SUBSTITUTIONS		= [
	# Platform-specific
	("DWORD",		"uint32_t"),
	("HANDLE*",		PLATFORM_TYPE_NAMESPACE + "::" + "Win32Handle*"),
]

EXTENSION_POSTFIXES				= ["KHR", "EXT", "NV", "NVX", "KHX", "NN", "MVK", "FUCHSIA", "GGP", "AMD", "QNX"]
EXTENSION_POSTFIXES_STANDARD	= ["KHR", "EXT"]

def prefixName (prefix, name):
	name = re.sub(r'([a-z0-9])([A-Z])', r'\1_\2', name[2:])
	name = re.sub(r'([a-zA-Z])([0-9])', r'\1_\2', name)
	name = name.upper()

	name = name.replace("YCB_CR_", "YCBCR_")
	name = name.replace("WIN_32_", "WIN32_")
	name = name.replace("8_BIT_", "8BIT_")
	name = name.replace("16_BIT_", "16BIT_")
	name = name.replace("INT_64_", "INT64_")
	name = name.replace("D_3_D_12_", "D3D12_")
	name = name.replace("IOSSURFACE_", "IOS_SURFACE_")
	name = name.replace("MAC_OS", "MACOS_")
	name = name.replace("TEXTURE_LOD", "TEXTURE_LOD_")
	name = name.replace("VIEWPORT_W", "VIEWPORT_W_")
	name = name.replace("_IDPROPERTIES", "_ID_PROPERTIES")
	name = name.replace("PHYSICAL_DEVICE_SHADER_FLOAT_16_INT_8_FEATURES", "PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES")
	name = name.replace("PHYSICAL_DEVICE_RGBA_10_X_6_FORMATS_FEATURES_EXT", "PHYSICAL_DEVICE_RGBA10X6_FORMATS_FEATURES_EXT")
	name = name.replace("_PCIBUS_", "_PCI_BUS_")
	name = name.replace("ASTCD", "ASTC_D")
	name = name.replace("AABBNV", "AABB_NV")
	name = name.replace("IMAGE_PIPE", "IMAGEPIPE")
	name = name.replace("SMBUILTINS", "SM_BUILTINS")
	name = name.replace("ASTCHDRFEATURES", "ASTC_HDR_FEATURES")
	name = name.replace("UINT_8", "UINT8")
	name = name.replace("VULKAN_11_FEATURES", "VULKAN_1_1_FEATURES")
	name = name.replace("VULKAN_11_PROPERTIES", "VULKAN_1_1_PROPERTIES")
	name = name.replace("VULKAN_12_FEATURES", "VULKAN_1_2_FEATURES")
	name = name.replace("VULKAN_12_PROPERTIES", "VULKAN_1_2_PROPERTIES")
	name = name.replace("VULKAN_13_FEATURES", "VULKAN_1_3_FEATURES")
	name = name.replace("VULKAN_13_PROPERTIES", "VULKAN_1_3_PROPERTIES")
	name = name.replace("VULKAN_SC_10_FEATURES", "VULKAN_SC_1_0_FEATURES")
	name = name.replace("VULKAN_SC_10_PROPERTIES", "VULKAN_SC_1_0_PROPERTIES")
	name = name.replace("INT_8_", "INT8_")
	name = name.replace("AABBNV", "AABB_NV")
	name = name.replace("_H_264_", "_H264_")
	name = name.replace("_H_265_", "_H265_")
	name = name.replace("RDMAFEATURES", "RDMA_FEATURES")
	name = name.replace("RGBA_10_X_6", "RGBA10X6")
	name = name.replace("2_D", "2D_")
	name = name.replace("3_D", "3D_")
	name = name.replace("IOSURFACE", "IO_SURFACE")


	return prefix + name

def getApiVariantIndexByName(variantName):
	apiVariant = {
		None : 0,
		''   : 0,
		'SC' : 1
	}
	return apiVariant[variantName]

def getApiVariantNameByIndex(variantIndex):
	apiVariant = {
		None : '',
		0    : '',
		1    : 'SC'
	}
	return apiVariant[variantIndex]

class Version:
	def __init__ (self, versionTuple):
		self.api   = versionTuple[0]
		self.major = versionTuple[1]
		self.minor = versionTuple[2]
		self.patch = versionTuple[3]

	def getInHex (self):
		if self.patch == 0:
			return "VK%s_API_VERSION_%d_%d" % (getApiVariantNameByIndex(self.api), self.major, self.minor)
		return '0x%Xu' % (hash(self))

	def isStandardVersion (self):
		if self.patch != 0:
			return False
		if self.major != 1:
			return False
		return True

	def getBestRepresentation (self):
		if self.isStandardVersion():
			return self.getInHex()
		return self.getDefineName()

	def getDefineName (self):
		return 'VERSION_%d_%d_%d' % (self.major, self.minor, self.patch)

	def __hash__ (self):
		return (self.api << 29) | (self.major << 22) | (self.minor << 12) | self.patch

	def __eq__ (self, other):
		return self.api == other.api and self.major == other.major and self.minor == other.minor and self.patch == other.patch

	def __str__ (self):
		return self.getBestRepresentation()

class Handle:
	TYPE_DISP		= 0
	TYPE_NONDISP	= 1

	def __init__ (self, type, name):
		self.type		= type
		self.name		= name
		self.alias		= None
		self.isAlias	= False

	def getHandleType (self):
		return prefixName("HANDLE_TYPE_", self.name)

	def checkAliasValidity (self):
		pass

	def __repr__ (self):
		return '%s (%s, %s)' % (self.name, self.alias, self.isAlias)

class Definition:
	def __init__ (self, type, name, value):
		self.type	= type
		self.name	= name
		self.value	= value
		self.alias	= None
		self.isAlias	= False

	def __repr__ (self):
		return '%s = %s (%s)' % (self.name, self.value, self.type)

class Enum:
	def __init__ (self, name, values):
		self.name		= name
		self.values		= values
		self.alias		= None
		self.isAlias	= False

	def checkAliasValidity (self):
		if self.alias != None:
			if len(self.values) != len(self.alias.values):
				raise Exception("%s has different number of flags than its alias %s." % (self.name, self.alias.name))
			for index, value in enumerate(self.values):
				aliasVal = self.alias.values[index]
				if value[1] != aliasVal[1] or not (value[0].startswith(aliasVal[0]) or aliasVal[0].startswith(value[0])):
					raise Exception("Flag %s of %s has different value than %s of %s." % (self.alias.values[index], self.alias.name, value, self.name))

	def __repr__ (self):
		return '%s (%s) %s' % (self.name, self.alias, self.values)

class Bitfield:
	def __init__ (self, name, values):
		self.name		= name
		self.values		= values
		self.alias		= None
		self.isAlias	= False

	def checkAliasValidity (self):
		if self.alias != None:
			if len(self.values) != len(self.alias.values):
				raise Exception("%s has different number of flags than its alias %s." % (self.name, self.alias.name))
			for index, value in enumerate(self.values):
				aliasVal = self.alias.values[index]
				if value[1] != aliasVal[1] or not (value[0].startswith(aliasVal[0]) or aliasVal[0].startswith(value[0])):
					raise Exception("Flag %s of %s has different value than %s of %s." % (self.alias.values[index], self.alias.name, value, self.name))

	def __repr__ (self):
		return '%s (%s)' % (self.name, self.alias)

class Variable:
	def __init__ (self, type, name, arraySizeOrFieldWidth):
		type		= type.replace('*',' *').replace('&',' &')
		for src, dst in TYPE_SUBSTITUTIONS:
			type = type.replace(src, dst)
		self.type	= type.split(' ')
		for platformType, substitute, compat in PLATFORM_TYPES:
			range = self.contains(self.type, platformType)
			if range != None:
				self.type = self.type[:range[0]]+[PLATFORM_TYPE_NAMESPACE + '::' + substitute[0]] + substitute[1:] + self.type[range[1]:]
				break
		self.name		= name
		if len(arraySizeOrFieldWidth) > 0 and arraySizeOrFieldWidth[0] == ':':
			self.arraySize	= ''
			self.fieldWidth = arraySizeOrFieldWidth
		else:
			self.arraySize	= arraySizeOrFieldWidth
			self.fieldWidth = ''

	def contains(self, big, small):
		for i in range(len(big)-len(small)+1):
			for j in range(len(small)):
				if big[i+j] != small[j]:
					break
			else:
				return i, i+len(small)
		return None

	def getType (self):
		return ' '.join(self.type).replace(' *','*').replace(' &','&')

	def getAsString (self, separator):
		return '%s%s%s%s%s' % (self.getType(), separator, self.name, self.arraySize, self.fieldWidth)

	def getAsStringForArgumentList (self, separator):
		return '%s%s%s%s' % (self.getType(), separator, self.name, self.arraySize)

	def __repr__ (self):
		return '<%s> <%s> <%s>' % (self.type, self.name, self.arraySize)

	def __eq__ (self, other):
		if len(self.type) != len(other.type):
			return False
		for index, type in enumerate(self.type):
			if "*" == type or "&" == type or "const" == type or "volatile" == type:
				if type != other.type[index]:
					return False
			elif type != other.type[index] and \
				type not in map(lambda ext: other.type[index] + ext, EXTENSION_POSTFIXES_STANDARD) and \
				other.type[index] not in map(lambda ext: type + ext, EXTENSION_POSTFIXES_STANDARD):
				return False
		return self.arraySize == other.arraySize

	def __ne__ (self, other):
		return not self == other

class CompositeType:
	CLASS_STRUCT	= 0
	CLASS_UNION		= 1

	def __init__ (self, typeClass, name, members, apiVersion = None):
		self.typeClass	= typeClass
		self.name		= name
		self.members	= members
		self.alias		= None
		self.isAlias	= False
		self.apiVersion	= apiVersion

	def getClassName (self):
		names = {CompositeType.CLASS_STRUCT: 'struct', CompositeType.CLASS_UNION: 'union'}
		return names[self.typeClass]

	def checkAliasValidity (self):
		if self.alias != None:
			if len(self.members) != len(self.alias.members):
				raise Exception("%s has different number of members than its alias %s." % (self.name, self.alias.name))
			for index, member in enumerate(self.members ):
				break
				#if member != self.alias.members[index]:
					#raise Exception("Member %s of %s is different than core member %s in %s." % (self.alias.members[index], self.alias.name, member, self.name))
					#raise Exception("Member ",str(self.alias.members[index])," of ", str(self.alias.name)," is different than core member ", str(member)," in ", str(self.name),".")
	def __repr__ (self):
		return '%s (%s)' % (self.name, self.alias)

class Function:
	TYPE_PLATFORM		= 0 # Not bound to anything
	TYPE_INSTANCE		= 1 # Bound to VkInstance
	TYPE_DEVICE			= 2 # Bound to VkDevice

	def __init__ (self, name, returnType, arguments, apiVersion = None):
		self.name		= name
		self.returnType	= returnType
		self.arguments	= arguments
		self.alias		= None
		self.isAlias	= False
		self.apiVersion	= apiVersion

	def getType (self):
		# Special functions
		if self.name == "vkGetInstanceProcAddr":
			return Function.TYPE_PLATFORM
		assert len(self.arguments) > 0
		firstArgType = self.arguments[0].getType()
		if firstArgType in ["VkInstance", "VkPhysicalDevice"]:
			return Function.TYPE_INSTANCE
		elif firstArgType in ["VkDevice", "VkCommandBuffer", "VkQueue"]:
			return Function.TYPE_DEVICE
		else:
			return Function.TYPE_PLATFORM

	def checkAliasValidity (self):
		if self.alias != None:
			if len(self.arguments) != len(self.alias.arguments):
				raise Exception("%s has different number of arguments than its alias %s." % (self.name, self.alias.name))
			if self.returnType != self.alias.returnType or not (self.returnType.startswith(self.alias.returnType) or self.alias.returnType.startswith(self.returnType)):
				raise Exception("%s has different return value's type than its alias %s." % (self.name, self.alias.name))
			for index, argument in enumerate(self.arguments):
				if argument != self.alias.arguments[index]:
					raise Exception("argument %s: \"%s\" of %s is different than \"%s\" of %s." % (index, self.alias.arguments[index].getAsString(' '), self.alias.name, argument.getAsString(' '), self.name))

	def __repr__ (self):
		return '%s (%s)' % (self.name, self.alias)

class Extension:
	def __init__ (self, name, handles, enums, bitfields, compositeTypes, functions, definitions, additionalDefinitions, typedefs, versionInCore):
		self.name			= name
		self.definitions	= definitions
		self.additionalDefs = additionalDefinitions
		self.handles		= handles
		self.enums			= enums
		self.bitfields		= bitfields
		self.compositeTypes	= compositeTypes
		self.functions		= functions
		self.typedefs		= typedefs
		self.versionInCore	= versionInCore

	def __repr__ (self):
		return 'EXT:\n%s ->\nENUMS:\n%s\nCOMPOS:\n%s\nFUNCS:\n%s\nBITF:\n%s\nHAND:\n%s\nDEFS:\n%s\n' % (self.name, self.enums, self.compositeTypes, self.functions, self.bitfields, self.handles, self.definitions, self.versionInCore)

class API:
	def __init__ (self, versions, definitions, handles, enums, bitfields, bitfields64, compositeTypes, functions, extensions, additionalExtensionData):
		self.versions					= versions
		self.definitions				= definitions
		self.handles					= handles
		self.enums						= enums
		self.bitfields					= bitfields
		self.bitfields64				= bitfields64
		self.compositeTypes				= compositeTypes
		self.functions					= functions					# \note contains extension functions as well
		self.extensions					= extensions
		self.additionalExtensionData	= additionalExtensionData	# \note contains mandatory features and information about promotion

def readFile (filename):
	with open(filename, 'rt') as f:
		return f.read()

IDENT_PTRN	= r'[a-zA-Z_][a-zA-Z0-9_]*'
WIDTH_PTRN	= r'[:0-9]*'
TYPE_PTRN	= r'[a-zA-Z_][a-zA-Z0-9_ \t*&]*'

def getInterfaceName (function):
	assert function.name[:2] == "vk"
	return function.name[2].lower() + function.name[3:]

def getFunctionTypeName (function):
	assert function.name[:2] == "vk"
	return function.name[2:] + "Func"

def endsWith (str, postfix):
	return str[-len(postfix):] == postfix

def splitNameExtPostfix (name):
	knownExtPostfixes = EXTENSION_POSTFIXES
	for postfix in knownExtPostfixes:
		if endsWith(name, postfix):
			return (name[:-len(postfix)], postfix)
	return (name, "")

def getBitEnumNameForBitfield (bitfieldName):
	bitfieldName, postfix = splitNameExtPostfix(bitfieldName)
	assert bitfieldName[-1] == "s"
	return bitfieldName[:-1] + "Bits" + postfix

def getBitfieldNameForBitEnum (bitEnumName):
	bitEnumName, postfix = splitNameExtPostfix(bitEnumName)
	assert bitEnumName[-4:] == "Bits"
	return bitEnumName[:-4] + "s" + postfix

def parsePreprocDefinedValue (src, name):
	value = parsePreprocDefinedValueOptional(src, name)
	if value is None:
		raise Exception("No such definition: %s" % name)
	return value

def parsePreprocDefinedValueOptional (src, name):
	definition = re.search(r'#\s*define\s+' + name + r'\s+([^\n]+)\n', src)
	if definition is None:
		return None
	value = definition.group(1).strip()
	if value == "UINT32_MAX":
		value = "(~0u)"
	return value

def parseEnum (name, src):
	keyValuePtrn = '(' + IDENT_PTRN + r')\s*=\s*([^\s,\n}]+)\s*[,\n}]'
	return Enum(name, re.findall(keyValuePtrn, src))

# \note Parses raw enums, some are mapped to bitfields later
def parseEnums (src):
	matches	= re.findall(r'typedef enum(\s*' + IDENT_PTRN + r')?\s*{([^}]*)}\s*(' + IDENT_PTRN + r')\s*;', src)
	enums	= []
	for enumname, contents, typename in matches:
		enums.append(parseEnum(typename, contents))
	return enums

def parseCompositeType (type, name, src):
	typeNamePtrn	= r'(' + TYPE_PTRN + r')(\s+' + IDENT_PTRN + r')((\[[^\]]+\]|\s*:\s*[0-9]+)*)\s*;'
	matches			= re.findall(typeNamePtrn, src)
	members			= [Variable(t.strip(), n.strip(), a.replace(' ', '')) for t, n, a, _ in matches]
	return CompositeType(type, name, members)

def parseCompositeTypes (src):
	typeMap	= { 'struct': CompositeType.CLASS_STRUCT, 'union': CompositeType.CLASS_UNION }
	matches	= re.findall(r'typedef (struct|union)(\s*' + IDENT_PTRN + r')?\s*{([^}]*)}\s*(' + IDENT_PTRN + r')\s*;', src)
	types	= []
	for type, structname, contents, typename in matches:
		types.append(parseCompositeType(typeMap[type], typename, contents))
	return types

def parseCompositeTypesByVersion (src, versionsData):

	# find occurence of extension is a place where
	# we cant assign apiVersion to found structures
	extPtrn		= r'#define\s+[A-Z0-9_]+_EXTENSION_NAME\s+"([^"]+)"'
	versionEnd	= re.search(extPtrn, src)
	versions	= [Version((v[2], v[3], v[4], 0)) for v in versionsData]
	versions.append(None)

	# construct list of locations where version definitions start, and add the end of the file to it
	sectionLocations = [versionDef[1] for versionDef in versionsData]
	sectionLocations.append(versionEnd.start())
	sectionLocations.append(len(src))

	# construct function declaration pattern
	ptrn		= r'typedef (struct|union)(\s*' + IDENT_PTRN + r')?\s*{([^}]*)}\s*(' + IDENT_PTRN + r')\s*;'
	regPtrn		= re.compile(ptrn)
	types		= []
	typeMap		= { 'struct': CompositeType.CLASS_STRUCT, 'union': CompositeType.CLASS_UNION }

	# iterate over all versions and find all structure definitions
	for index, v in enumerate(versions):
		matches = regPtrn.findall(src, sectionLocations[index], sectionLocations[index+1])
		for type, structname, contents, typename in matches:
			compositeType = parseCompositeType(typeMap[type], typename, contents)
			compositeType.apiVersion = v
			types.append(compositeType)
	return types

def parseVersions (src):
	# returns list of tuples each with four items:
	# 1. string with version token (without ' 1' at the end)
	# 2. starting point off version specific definitions in vulkan.h.in
	# 3. major version number
	# 4. minor version number
	return [(m.group()[:-2], m.start(), getApiVariantIndexByName(m.group(1)), int(m.group(2)), int(m.group(3))) for m in re.finditer('VK(SC)?_VERSION_([1-9])_([0-9]) 1', src)]


def parseHandles (src):
	matches	= re.findall(r'VK_DEFINE(_NON_DISPATCHABLE|)_HANDLE\((' + IDENT_PTRN + r')\)[ \t]*[\n\r]', src)
	handles	= []
	typeMap	= {'': Handle.TYPE_DISP, '_NON_DISPATCHABLE': Handle.TYPE_NONDISP}
	for type, name in matches:
		handle = Handle(typeMap[type], name)
		handles.append(handle)
	return handles

def parseArgList (src):
	typeNamePtrn	= r'(' + TYPE_PTRN + r')(\s+' + IDENT_PTRN + r')((\[[^\]]+\])*)\s*'
	args			= []
	for rawArg in src.split(','):
		m = re.search(typeNamePtrn, rawArg)
		args.append(Variable(m.group(1).strip(), m.group(2).strip(), m.group(3)))
	return args

def removeTypeExtPostfix (name):
	for extPostfix in EXTENSION_POSTFIXES_STANDARD:
		if endsWith(name, extPostfix):
			return name[0:-len(extPostfix)]
	return None

def populateExtensionAliases(allObjects, extensionObjects):
	for object in extensionObjects:
		withoutPostfix = removeTypeExtPostfix(object.name)
		if withoutPostfix != None and withoutPostfix in allObjects:
			# max 1 alias is assumed by functions in this file
			assert allObjects[withoutPostfix].alias == None
			allObjects[withoutPostfix].alias = object
			object.isAlias = True
	for object in extensionObjects:
		object.checkAliasValidity()

def populateAliasesWithTypedefs (objects, src):
	objectsByName = {}
	for object in objects:
		objectsByName[object.name] = object
		ptrn	= r'\s*typedef\s+' + object.name + r'\s+([^;]+)'
		stash = re.findall(ptrn, src)
		if len(stash) == 1:
			objExt = copy.deepcopy(object)
			objExt.name = stash[0]
			object.alias = objExt
			objExt.isAlias = True
			objects.append(objExt)

def removeAliasedValues (enum):
	valueByName = {}
	for name, value in enum.values:
		valueByName[name] = value

	def removeDefExtPostfix (name):
		for extPostfix in EXTENSION_POSTFIXES:
			if endsWith(name, "_" + extPostfix):
				return name[0:-(len(extPostfix)+1)]
		return None

	newValues = []
	for name, value in enum.values:
		withoutPostfix = removeDefExtPostfix(name)
		if withoutPostfix != None and withoutPostfix in valueByName and valueByName[withoutPostfix] == value:
			continue
		newValues.append((name, value))
	enum.values = newValues

def parseFunctions (src):
	ptrn		= r'VKAPI_ATTR\s+(' + TYPE_PTRN + ')\s+VKAPI_CALL\s+(' + IDENT_PTRN + r')\s*\(([^)]*)\)\s*;'
	matches		= re.findall(ptrn, src)
	functions	= []
	for returnType, name, argList in matches:
		functions.append(Function(name.strip(), returnType.strip(), parseArgList(argList)))
	return functions

def parseFunctionsByVersion (src, versions):
	# construct list of locations where version definitions start, and add the end of the file to it
	sectionLocations = [versionDef[1] for versionDef in versions]
	sectionLocations.append(len(src))

	# construct function declaration pattern
	ptrn		= r'VKAPI_ATTR\s+(' + TYPE_PTRN + ')\s+VKAPI_CALL\s+(' + IDENT_PTRN + r')\s*\(([^)]*)\)\s*;'
	regPtrn		= re.compile(ptrn)
	functions	= []

	# iterate over all versions and find all function definitions
	for index, v in enumerate(versions):
		matches = regPtrn.findall(src, sectionLocations[index], sectionLocations[index+1])
		for returnType, name, argList in matches:
			functions.append(Function(name.strip(), returnType.strip(), parseArgList(argList), v[0]))
	return functions

def splitByExtension (src):
	ptrn		= r'#define\s+[A-Z0-9_]+_EXTENSION_NAME\s+"([^"]+)"'
	# Construct long pattern that will be used to split whole source by extensions
	match		= "#define\s+("
	for part in re.finditer(ptrn, src):
		 match += part.group(1)+"|"
	match = match[:-1] + ")\s+1"
	parts = re.split(match, src)

	# First part is core, following tuples contain extension name and all its definitions
	byExtension	= [(None, parts[0])]
	for ndx in range(1, len(parts), 2):
		byExtension.append((parts[ndx], parts[ndx+1]))
	return byExtension

def parseDefinitions (extensionName, src):

	def skipDefinition (extensionName, definition):
		if extensionName == None:
			return True
		extNameUpper = extensionName.upper()
		extNameUpper = extNameUpper.replace("VK_KHR_SYNCHRONIZATION2", "VK_KHR_SYNCHRONIZATION_2")
		extNameUpper = extNameUpper.replace("VK_INTEL_SHADER_INTEGER_FUNCTIONS2", "VK_INTEL_SHADER_INTEGER_FUNCTIONS_2")
		extNameUpper = extNameUpper.replace("VK_EXT_ROBUSTNESS2", "VK_EXT_ROBUSTNESS_2")
		extNameUpper = extNameUpper.replace("VK_EXT_FRAGMENT_DENSITY_MAP2", "VK_EXT_FRAGMENT_DENSITY_MAP_2")
		extNameUpper = extNameUpper.replace("VK_EXT_SHADER_ATOMIC_FLOAT2", "VK_EXT_SHADER_ATOMIC_FLOAT_2")
		extNameUpper = extNameUpper.replace("VK_AMD_SHADER_CORE_PROPERTIES2", "VK_AMD_SHADER_CORE_PROPERTIES_2")
		extNameUpper = extNameUpper.replace("VK_EXT_EXTENDED_DYNAMIC_STATE2", "VK_EXT_EXTENDED_DYNAMIC_STATE_2")
		# SPEC_VERSION enums
		if definition[0].startswith(extNameUpper) and definition[1].isdigit():
			return False
		if definition[0].startswith(extNameUpper):
			return True
		if definition[0].endswith("_H_"):
			return True
		return False

	ptrn		= r'#define\s+([^\s]+)\s+([^\r\n]+)'
	matches		= re.findall(ptrn, src)

	return [Definition(None, match[0], match[1]) for match in matches if not skipDefinition(extensionName, match)]

def parseTypedefs (src):

	ptrn		= r'typedef\s+([^\s]+)\s+([^\r\n]+);'
	matches		= re.findall(ptrn, src)

	return [Definition(None, match[0], match[1]) for match in matches]

def parseExtensions (src, versions, allFunctions, allCompositeTypes, allEnums, allBitfields, allHandles, allDefinitions, additionalExtensionData):

	# note registeredExtensionDict is also executed for vulkan 1.0 source for which extension name is None
	registeredExtensionDict = {None: None}
	for extensionName, data in additionalExtensionData:
		# make sure that this extension was registered
		if 'register_extension' not in data.keys():
			continue
		# save array containing 'device' or 'instance' string followed by the optional vulkan version in which this extension is core;
		# note that register_extension section is also required for partialy promoted extensions like VK_EXT_extended_dynamic_state2
		# but those extensions should not fill 'core' tag
		registeredExtensionDict[extensionName] = [ data['register_extension']['type'] ]
		match = re.match("(\d).(\d).(\d).(\d)", data['register_extension']['core'])
		if match != None:
			registeredExtensionDict[extensionName].extend( [ int(match.group(1)), int(match.group(2)), int(match.group(3)), int(match.group(4)) ] )

	splitSrc				= splitByExtension(src)
	extensions				= []
	functionsByName			= {function.name: function for function in allFunctions}
	compositeTypesByName	= {compType.name: compType for compType in allCompositeTypes}
	enumsByName				= {enum.name: enum for enum in allEnums}
	bitfieldsByName			= {bitfield.name: bitfield for bitfield in allBitfields}
	handlesByName			= {handle.name: handle for handle in allHandles}
	definitionsByName		= {definition.name: definition for definition in allDefinitions}

	for extensionName, extensionSrc in splitSrc:
		definitions			= [Definition("uint32_t", v.getInHex(), parsePreprocDefinedValueOptional(extensionSrc, v.getInHex())) for v in versions]
		definitions.extend([Definition(type, name, parsePreprocDefinedValueOptional(extensionSrc, name)) for name, type in DEFINITIONS])
		definitions			= [definition for definition in definitions if definition.value != None]
		additionalDefinitions = parseDefinitions(extensionName, extensionSrc)
		handles				= parseHandles(extensionSrc)
		functions			= parseFunctions(extensionSrc)
		compositeTypes		= parseCompositeTypes(extensionSrc)
		rawEnums			= parseEnums(extensionSrc)
		bitfieldNames		= parse32bitBitfieldNames(extensionSrc)
		typedefs			= parseTypedefs(extensionSrc)
		enumBitfieldNames	= [getBitEnumNameForBitfield(name) for name in bitfieldNames]
		enums				= [enum for enum in rawEnums if enum.name not in enumBitfieldNames]

		extCoreVersion		= None
		extData				= registeredExtensionDict.get(extensionName, None)
		extFunctions		= [functionsByName[function.name] for function in functions]
		extCompositeTypes	= [compositeTypesByName[compositeType.name] for compositeType in compositeTypes]
		extEnums			= [enumsByName[enum.name] for enum in enums]
		extBitfields		= [bitfieldsByName[bitfieldName] for bitfieldName in bitfieldNames]
		extHandles			= [handlesByName[handle.name] for handle in handles]
		extDefinitions		= [definitionsByName[definition.name] for definition in definitions]

		if extData != None:
			populateExtensionAliases(functionsByName, extFunctions)
			populateExtensionAliases(handlesByName, extHandles)
			populateExtensionAliases(enumsByName, extEnums)
			populateExtensionAliases(bitfieldsByName, extBitfields)
			populateExtensionAliases(compositeTypesByName, extCompositeTypes)
			if len(extData) > 1:
				extCoreVersion = extData

		extensions.append(Extension(extensionName, extHandles, extEnums, extBitfields, extCompositeTypes, extFunctions, extDefinitions, additionalDefinitions, typedefs, extCoreVersion))
	return extensions

def parse32bitBitfieldNames (src):
	ptrn		= r'typedef\s+VkFlags\s(' + IDENT_PTRN + r')\s*;'
	matches		= re.findall(ptrn, src)

	return matches

def parse64bitBitfieldNames (src):
	ptrn		= r'typedef\s+VkFlags64\s(' + IDENT_PTRN + r')\s*;'
	matches		= re.findall(ptrn, src)

	return matches

def parse64bitBitfieldValues (src, bitfieldNamesList):

	bitfields64 = []
	for bitfieldName in bitfieldNamesList:
		ptrn		= r'static const ' + bitfieldName + r'\s*(' + IDENT_PTRN + r')\s*=\s*([a-zA-Z0-9_]+)\s*;'
		matches		= re.findall(ptrn, src)
		bitfields64.append(Bitfield(bitfieldName, matches))

	return bitfields64

def parseAPI (src):
	versionsData	= parseVersions(src)
	versions		= [Version((v[2], v[3], v[4], 0)) for v in versionsData]
	definitions		= [Definition("uint32_t", v.getInHex(), parsePreprocDefinedValue(src, v.getInHex())) for v in versions] +\
					  [Definition(type, name, parsePreprocDefinedValue(src, name)) for name, type in DEFINITIONS]

	handles						= parseHandles(src)
	rawEnums					= parseEnums(src)
	bitfieldNames				= parse32bitBitfieldNames(src)
	bitfieldEnums				= set([getBitEnumNameForBitfield(n) for n in bitfieldNames if getBitEnumNameForBitfield(n) in [enum.name for enum in rawEnums]])
	bitfield64Names				= parse64bitBitfieldNames(src)
	bitfields64					= parse64bitBitfieldValues(src, bitfield64Names)
	enums						= []
	bitfields					= []
	compositeTypes				= parseCompositeTypesByVersion(src, versionsData)
	allFunctions				= parseFunctionsByVersion(src, versionsData)
	additionalExtensionData		= {}

	# read all files from extensions directory
	for fileName in glob.glob(os.path.join(SCRIPTS_SRC_DIR, "extensions", "*.json")):
		extensionName	= os.path.basename(fileName)[:-5]
		fileContent		= readFile(fileName)
		try:
			additionalExtensionData[extensionName] = json.loads(fileContent)
		except ValueError as err:
			print("Error in %s: %s" % (os.path.basename(fileName), str(err)))
			sys.exit(-1)
	additionalExtensionData = sorted(additionalExtensionData.items(), key=lambda e: e[0])

	for enum in rawEnums:
		if enum.name in bitfieldEnums:
			bitfields.append(Bitfield(getBitfieldNameForBitEnum(enum.name), enum.values))
		else:
			enums.append(enum)

	for bitfieldName in bitfieldNames:
		if not bitfieldName in [bitfield.name for bitfield in bitfields]:
			# Add empty bitfield
			bitfields.append(Bitfield(bitfieldName, []))

	extensions = parseExtensions(src, versions, allFunctions, compositeTypes, enums, bitfields, handles, definitions, additionalExtensionData)

	# Populate alias fields
	populateAliasesWithTypedefs(compositeTypes, src)
	populateAliasesWithTypedefs(enums, src)
	populateAliasesWithTypedefs(bitfields, src)
	populateAliasesWithTypedefs(bitfields64, src)
	populateAliasesWithTypedefs(handles, src)

	for enum in enums:
		removeAliasedValues(enum)

	# Make generator to create Deleter<VkAccelerationStructureNV>
	for f in allFunctions:
		if (f.name == 'vkDestroyAccelerationStructureNV'):
			f.arguments[1].type[0] = 'VkAccelerationStructureNV'

	# Dealias handles VkAccelerationStructureNV and VkAccelerationStructureKHR
	for handle in handles:
		if handle.name == 'VkAccelerationStructureKHR':
			handle.alias = None
		if handle.name == 'VkAccelerationStructureNV':
			handle.isAlias = False

	return API(
		versions				= versions,
		definitions				= definitions,
		handles					= handles,
		enums					= enums,
		bitfields				= bitfields,
		bitfields64				= bitfields64,
		compositeTypes			= compositeTypes,
		functions				= allFunctions,
		extensions				= extensions,
		additionalExtensionData	= additionalExtensionData)

def splitUniqueAndDuplicatedEntries (handles):
	listOfUniqueHandles = []
	duplicates			= OrderedDict()
	for handle in handles:
		if handle.alias != None:
			duplicates[handle.alias] = handle
		if not handle.isAlias:
			listOfUniqueHandles.append(handle)
	return listOfUniqueHandles, duplicates

def writeHandleType (api, filename):
	uniqeHandles, duplicatedHandles = splitUniqueAndDuplicatedEntries(api.handles)

	def genHandles ():
		yield "\t%s\t= 0," % uniqeHandles[0].getHandleType()
		for handle in uniqeHandles[1:]:
			yield "\t%s," % handle.getHandleType()
		for duplicate in duplicatedHandles:
			yield "\t%s\t= %s," % (duplicate.getHandleType(), duplicatedHandles[duplicate].getHandleType())
		yield "\tHANDLE_TYPE_LAST\t= %s + 1" % (uniqeHandles[-1].getHandleType())

	def genHandlesBlock ():
		yield "enum HandleType"
		yield "{"

		for line in indentLines(genHandles()):
			yield line

		yield "};"
		yield ""

	writeInlFile(filename, INL_HEADER, genHandlesBlock())

def getEnumValuePrefix (enum):
	prefix = enum.name[0]
	for i in range(1, len(enum.name)):
		if enum.name[i].isupper() and not enum.name[i-1].isupper():
			prefix += "_"
		prefix += enum.name[i].upper()
	return prefix

def parseInt (value):
	if value[:2] == "0x":
		return int(value, 16)
	else:
		return int(value, 10)

def areEnumValuesLinear (enum):
	curIndex = 0
	maxIntCount = 0
	for name, value in enum.values:
		if value[:2] != "VK":
			intValue = parseInt(value)
			if intValue != curIndex:
				# enum is linear when all items are in order
				if intValue != 0x7FFFFFFF:
					return False
				# count number of items with 0x7FFFFFFF value;
				# enum containing single 0x7FFFFFFF item are also
				# considered as linear (this is usualy *_MAX_ENUM item)
				maxIntCount += 1
				# enums containing more then one 0x7FFFFFFF value
				# are not considered as linear (vulkan video enums)
				if maxIntCount > 1:
					return False
			curIndex += 1
	return True

def genEnumSrc (enum):
	yield "enum %s" % enum.name
	yield "{"

	lines = []
	if areEnumValuesLinear(enum):
		hasMaxItem	= parseInt(enum.values[-1][1]) == 0x7FFFFFFF

		values		= enum.values[:-1] if hasMaxItem else enum.values
		lastItem	= "\t%s_LAST," % getEnumValuePrefix(enum)

		# linear values first, followed by *_LAST
		lines		+= ["\t%s\t= %s," % v for v in values if v[1][:2] != "VK"]
		lines.append(lastItem)

		# equivalence enums and *_MAX_ENUM
		lines		+= ["\t%s\t= %s," % v for v in values if v[1][:2] == "VK"]
		if hasMaxItem:
			lines.append("\t%s\t= %s," % enum.values[-1])
	else:
		lines		+= ["\t%s\t= %s," % v for v in enum.values]

	for line in indentLines(lines):
		yield line

	yield "};"

def genBitfieldSrc (bitfield):
	if len(bitfield.values) > 0:
		yield "enum %s" % getBitEnumNameForBitfield(bitfield.name)
		yield "{"
		for line in indentLines(["\t%s\t= %s," % v for v in bitfield.values]):
			yield line
		yield "};"
	yield "typedef uint32_t %s;" % bitfield.name

def genBitfield64Src (bitfield64):
	yield "typedef uint64_t %s;" % bitfield64.name
	if len(bitfield64.values) > 0:
		ptrn = "static const " + bitfield64.name + " %s\t= %s;"
		for line in indentLines([ptrn % v for v in bitfield64.values]):
			yield line
		yield ""

def genCompositeTypeSrc (type):
	yield "%s %s" % (type.getClassName(), type.name)
	yield "{"
	for line in indentLines(['\t'+m.getAsString('\t')+';' for m in type.members]):
		yield line
	yield "};"

def genHandlesSrc (handles):
	uniqeHandles, duplicatedHandles = splitUniqueAndDuplicatedEntries(handles)

	def genLines (handles):
		for handle in uniqeHandles:
			if handle.type == Handle.TYPE_DISP:
				yield "VK_DEFINE_HANDLE\t(%s,\t%s);" % (handle.name, handle.getHandleType())
			elif handle.type == Handle.TYPE_NONDISP:
				yield "VK_DEFINE_NON_DISPATCHABLE_HANDLE\t(%s,\t%s);" % (handle.name, handle.getHandleType())

		for duplicate in duplicatedHandles:
			if duplicate.type == Handle.TYPE_DISP:
				yield "VK_DEFINE_HANDLE\t(%s,\t%s);" % (duplicate.name, duplicatedHandles[duplicate].getHandleType())
			elif duplicate.type == Handle.TYPE_NONDISP:
				yield "VK_DEFINE_NON_DISPATCHABLE_HANDLE\t(%s,\t%s);" % (duplicate.name, duplicatedHandles[duplicate].getHandleType())

	for line in indentLines(genLines(handles)):
		yield line

def stripTrailingComment(str):
	index = str.find("//")
	if index == -1:
		return str
	return str[:index]

def genDefinitionsSrc (definitions):
	for line in ["#define %s\t(static_cast<%s>\t(%s))" % (definition.name, definition.type, stripTrailingComment(definition.value)) for definition in definitions]:
		yield line

def genDefinitionsAliasSrc (definitions):
	for line in ["#define %s\t%s" % (definition.name, definitions[definition].name) for definition in definitions]:
		if definition.value != definitions[definition].value and definition.value != definitions[definition].name:
			raise Exception("Value of %s (%s) is different than core definition value %s (%s)." % (definition.name, definition.value, definitions[definition].name, definitions[definition].value))
		yield line

def genMaxFrameworkVersion (definitions):
	maxApiVersionMajor = 1
	maxApiVersionMinor = 0
	for definition in definitions:
		match = re.match("VK_API_VERSION_(\d+)_(\d+)", definition.name)
		if match:
			apiVersionMajor = int(match.group(1))
			apiVersionMinor = int(match.group(2))
			if apiVersionMajor > maxApiVersionMajor:
				maxApiVersionMajor = apiVersionMajor
				maxApiVersionMinor = apiVersionMinor
			elif apiVersionMajor == maxApiVersionMajor and apiVersionMinor > maxApiVersionMinor:
				maxApiVersionMinor = apiVersionMinor
	yield "#define VK_API_MAX_FRAMEWORK_VERSION\tVK_API_VERSION_%d_%d" % (maxApiVersionMajor, maxApiVersionMinor)

def genMaxFrameworkVersionSC (definitions):
	maxApiVersionMajor = 1
	maxApiVersionMinor = 0
	for definition in definitions:
		match = re.match("VKSC_API_VERSION_(\d+)_(\d+)", definition.name)
		if match:
			apiVersionMajor = int(match.group(1))
			apiVersionMinor = int(match.group(2))
			if apiVersionMajor > maxApiVersionMajor:
				maxApiVersionMajor = apiVersionMajor
				maxApiVersionMinor = apiVersionMinor
			elif apiVersionMajor == maxApiVersionMajor and apiVersionMinor > maxApiVersionMinor:
				maxApiVersionMinor = apiVersionMinor
	yield "#define VKSC_API_MAX_FRAMEWORK_VERSION\tVKSC_API_VERSION_%d_%d" % (maxApiVersionMajor, maxApiVersionMinor)

def writeBasicTypes (apiName, api, filename):

	def gen ():
		definitionsCore, definitionDuplicates = splitUniqueAndDuplicatedEntries(api.definitions)

		if apiName == '':
			for line in indentLines(chain(genDefinitionsSrc(definitionsCore), genMaxFrameworkVersion(definitionsCore), genDefinitionsAliasSrc(definitionDuplicates))):
				yield line
			yield ""
		elif apiName == 'SC':
			for line in indentLines(chain(genDefinitionsSrc(definitionsCore), genMaxFrameworkVersion(definitionsCore), genMaxFrameworkVersionSC(definitionsCore), genDefinitionsAliasSrc(definitionDuplicates))):
				yield line
			yield ""

		for line in genHandlesSrc(api.handles):
			yield line
		yield ""

		for enum in api.enums:
			if not enum.isAlias:
				for line in genEnumSrc(enum):
					yield line
			else:
				for enum2 in api.enums:
					if enum2.alias == enum:
						yield "typedef %s %s;" % (enum2.name, enum.name)
			yield ""

		for bitfield in api.bitfields:
			if not bitfield.isAlias:
				for line in genBitfieldSrc(bitfield):
					yield line
			else:
				for bitfield2 in api.bitfields:
					if bitfield2.alias == bitfield:
						yield "typedef %s %s;" % (bitfield2.name, bitfield.name)
			yield ""

		for bitfield in api.bitfields64:
			if not bitfield.isAlias:
				for line in genBitfield64Src(bitfield):
					yield line
			else:
				for bitfield2 in api.bitfields64:
					if bitfield2.alias == bitfield:
						yield "typedef %s %s;" % (bitfield2.name, bitfield.name)
			yield ""

		for line in indentLines(["VK_DEFINE_PLATFORM_TYPE(%s,\t%s)" % (s[0], c) for n, s, c in PLATFORM_TYPES]):
			yield line

		for ext in api.extensions:
			if ext.additionalDefs != None:
				for definition in ext.additionalDefs:
					yield "#define " + definition.name + " " + definition.value

	writeInlFile(filename, INL_HEADER, gen())

def writeCompositeTypes (api, filename):
	def gen ():
		for type in api.compositeTypes:
			type.checkAliasValidity()

			if not type.isAlias:
				for line in genCompositeTypeSrc(type):
					yield line
			else:
				for type2 in api.compositeTypes:
					if type2.alias == type:
						yield "typedef %s %s;" % (type2.name, type.name)
			yield ""

	writeInlFile(filename, INL_HEADER, gen())

def argListToStr (args):
	return ", ".join(v.getAsStringForArgumentList(' ') for v in args)

def writeInterfaceDecl (api, filename, functionTypes, concrete):
	def genProtos ():
		postfix = "" if concrete else " = 0"
		for function in api.functions:
			if not function.getType() in functionTypes:
				continue
			if not function.isAlias:
				yield "virtual %s\t%s\t(%s) const%s;" % (function.returnType, getInterfaceName(function), argListToStr(function.arguments), postfix)

	writeInlFile(filename, INL_HEADER, indentLines(genProtos()))

def writeFunctionPtrTypes (api, filename):
	def genTypes ():
		for function in api.functions:
			yield "typedef VKAPI_ATTR %s\t(VKAPI_CALL* %s)\t(%s);" % (function.returnType, getFunctionTypeName(function), argListToStr(function.arguments))

	writeInlFile(filename, INL_HEADER, indentLines(genTypes()))

def writeFunctionPointers (api, filename, functionTypes):
	def FunctionsYielder ():
		for function in api.functions:
			if function.getType() in functionTypes:
				if function.isAlias:
					if function.getType() == Function.TYPE_INSTANCE and function.arguments[0].getType() == "VkPhysicalDevice":
						yield "%s\t%s;" % (getFunctionTypeName(function), getInterfaceName(function))
				else:
					yield "%s\t%s;" % (getFunctionTypeName(function), getInterfaceName(function))

	writeInlFile(filename, INL_HEADER, indentLines(FunctionsYielder()))

def writeInitFunctionPointers (api, filename, functionTypes, cond = None):
	def makeInitFunctionPointers ():
		for function in api.functions:
			if function.getType() in functionTypes and (cond == None or cond(function)):
				interfaceName = getInterfaceName(function)
				if function.isAlias:
					if function.getType() == Function.TYPE_INSTANCE and function.arguments[0].getType() == "VkPhysicalDevice":
						yield "m_vk.%s\t= (%s)\tGET_PROC_ADDR(\"%s\");" % (getInterfaceName(function), getFunctionTypeName(function), function.name)
				else:
					yield "m_vk.%s\t= (%s)\tGET_PROC_ADDR(\"%s\");" % (getInterfaceName(function), getFunctionTypeName(function), function.name)
					if function.alias != None:
						yield "if (!m_vk.%s)" % (getInterfaceName(function))
						yield "    m_vk.%s\t= (%s)\tGET_PROC_ADDR(\"%s\");" % (getInterfaceName(function), getFunctionTypeName(function), function.alias.name)
	lines = [line.replace('    ', '\t') for line in indentLines(makeInitFunctionPointers())]
	writeInlFile(filename, INL_HEADER, lines)

def writeFuncPtrInterfaceImpl (api, filename, functionTypes, className):
	def makeFuncPtrInterfaceImpl ():
		for function in api.functions:
			if function.getType() in functionTypes and not function.isAlias:
				yield ""
				yield "%s %s::%s (%s) const" % (function.returnType, className, getInterfaceName(function), argListToStr(function.arguments))
				yield "{"
				if function.name == "vkEnumerateInstanceVersion":
					yield "	if (m_vk.enumerateInstanceVersion)"
					yield "		return m_vk.enumerateInstanceVersion(pApiVersion);"
					yield ""
					yield "	*pApiVersion = VK_API_VERSION_1_0;"
					yield "	return VK_SUCCESS;"
				elif function.getType() == Function.TYPE_INSTANCE and function.arguments[0].getType() == "VkPhysicalDevice" and function.alias != None:
					yield "	vk::VkPhysicalDeviceProperties props;"
					yield "	m_vk.getPhysicalDeviceProperties(physicalDevice, &props);"
					yield "	if (props.apiVersion >= VK_API_VERSION_1_1)"
					yield "		%sm_vk.%s(%s);" % ("return " if function.returnType != "void" else "", getInterfaceName(function), ", ".join(a.name for a in function.arguments))
					yield "	else"
					yield "		%sm_vk.%s(%s);" % ("return " if function.returnType != "void" else "", getInterfaceName(function.alias), ", ".join(a.name for a in function.arguments))
				else:
					yield "	%sm_vk.%s(%s);" % ("return " if function.returnType != "void" else "", getInterfaceName(function), ", ".join(a.name for a in function.arguments))
				yield "}"

	writeInlFile(filename, INL_HEADER, makeFuncPtrInterfaceImpl())

def writeFuncPtrInterfaceSCImpl (api, filename, functionTypes, className):
	normFuncs = {
		"createGraphicsPipelines"		: "\t\treturn createGraphicsPipelinesHandlerNorm(device, pipelineCache, createInfoCount, pCreateInfos, pAllocator, pPipelines);",
		"createComputePipelines"		: "\t\treturn createComputePipelinesHandlerNorm(device, pipelineCache, createInfoCount, pCreateInfos, pAllocator, pPipelines);",
		"createSampler"					: "\t\treturn createSamplerHandlerNorm(device, pCreateInfo, pAllocator, pSampler);",
		"createSamplerYcbcrConversion"	: "\t\treturn createSamplerYcbcrConversionHandlerNorm(device, pCreateInfo, pAllocator, pYcbcrConversion);",
		"createDescriptorSetLayout"		: "\t\treturn createDescriptorSetLayoutHandlerNorm(device, pCreateInfo, pAllocator, pSetLayout);",
		"createPipelineLayout"			: "\t\treturn createPipelineLayoutHandlerNorm(device, pCreateInfo, pAllocator, pPipelineLayout);",
		"createRenderPass"				: "\t\treturn createRenderPassHandlerNorm(device, pCreateInfo, pAllocator, pRenderPass);",
		"createRenderPass2"				: "\t\treturn createRenderPass2HandlerNorm(device, pCreateInfo, pAllocator, pRenderPass);",
		"createCommandPool"				: "\t\treturn createCommandPoolHandlerNorm(device, pCreateInfo, pAllocator, pCommandPool);",
		"resetCommandPool"				: "\t\treturn resetCommandPoolHandlerNorm(device, commandPool, flags);",
		"createFramebuffer"				: "\t\treturn createFramebufferHandlerNorm(device, pCreateInfo, pAllocator, pFramebuffer);",
	}
	statFuncs = {
		"destroyDevice"					: "\t\tdestroyDeviceHandler(device, pAllocator);",
		"createDescriptorSetLayout"		: "\t\tcreateDescriptorSetLayoutHandlerStat(device, pCreateInfo, pAllocator, pSetLayout);",
		"destroyDescriptorSetLayout"	: "\t\tdestroyDescriptorSetLayoutHandler(device, descriptorSetLayout, pAllocator);",
		"createImageView"				: "\t\tcreateImageViewHandler(device, pCreateInfo, pAllocator, pView);",
		"destroyImageView"				: "\t\tdestroyImageViewHandler(device, imageView, pAllocator);",
		"createSemaphore"				: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(semaphoreRequestCount,1);\n\t\t*pSemaphore = Handle<HANDLE_TYPE_SEMAPHORE>(m_resourceInterface->incResourceCounter());\n\t}",
		"destroySemaphore"				: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(semaphore,semaphoreRequestCount,1);\n\t}",
		"createFence"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(fenceRequestCount,1);\n\t\t*pFence = Handle<HANDLE_TYPE_FENCE>(m_resourceInterface->incResourceCounter());\n\t}",
		"destroyFence"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(fence,fenceRequestCount,1);\n\t}",
		"allocateMemory"				: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(deviceMemoryRequestCount,1);\n\t\t*pMemory = Handle<HANDLE_TYPE_DEVICE_MEMORY>(m_resourceInterface->incResourceCounter());\n\t}",
		"createBuffer"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(bufferRequestCount,1);\n\t\t*pBuffer = Handle<HANDLE_TYPE_BUFFER>(m_resourceInterface->incResourceCounter());\n\t}",
		"destroyBuffer"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(buffer,bufferRequestCount,1);\n\t}",
		"createImage"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(imageRequestCount,1);\n\t\t*pImage = Handle<HANDLE_TYPE_IMAGE>(m_resourceInterface->incResourceCounter());\n\t}",
		"destroyImage"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(image,imageRequestCount,1);\n\t}",
		"createEvent"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(eventRequestCount,1);\n\t\t*pEvent = Handle<HANDLE_TYPE_EVENT>(m_resourceInterface->incResourceCounter());\n\t}",
		"destroyEvent"					: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(event,eventRequestCount,1);\n\t}",
		"createQueryPool"				: "\t\tcreateQueryPoolHandler(device, pCreateInfo, pAllocator, pQueryPool);",
		"createBufferView"				: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(bufferViewRequestCount,1);\n\t\t*pView = Handle<HANDLE_TYPE_BUFFER_VIEW>(m_resourceInterface->incResourceCounter());\n\t}",
		"destroyBufferView"				: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(bufferView,bufferViewRequestCount,1);\n\t}",
		"createPipelineLayout"			: "\t\tcreatePipelineLayoutHandlerStat(device, pCreateInfo, pAllocator, pPipelineLayout);",
		"destroyPipelineLayout"			: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(pipelineLayout,pipelineLayoutRequestCount,1);\n\t}",
		"createRenderPass"				: "\t\tcreateRenderPassHandlerStat(device, pCreateInfo, pAllocator, pRenderPass);",
		"createRenderPass2"				: "\t\tcreateRenderPass2HandlerStat(device, pCreateInfo, pAllocator, pRenderPass);",
		"destroyRenderPass"				: "\t\tdestroyRenderPassHandler(device, renderPass, pAllocator);",
		"createGraphicsPipelines"		: "\t\tcreateGraphicsPipelinesHandlerStat(device, pipelineCache, createInfoCount, pCreateInfos, pAllocator, pPipelines);",
		"createComputePipelines"		: "\t\tcreateComputePipelinesHandlerStat(device, pipelineCache, createInfoCount, pCreateInfos, pAllocator, pPipelines);",
		"destroyPipeline"				: "\t\tdestroyPipelineHandler(device, pipeline, pAllocator);",
		"createSampler"					: "\t\tcreateSamplerHandlerStat(device, pCreateInfo, pAllocator, pSampler);",
		"destroySampler"				: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(sampler,samplerRequestCount,1);\n\t}",
		"createDescriptorPool"			: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(descriptorPoolRequestCount,1);\n\t\t*pDescriptorPool = Handle<HANDLE_TYPE_DESCRIPTOR_POOL>(m_resourceInterface->incResourceCounter());\n\t}",
		"resetDescriptorPool"			: "\t\tresetDescriptorPoolHandlerStat(device, descriptorPool, flags);",
		"allocateDescriptorSets"		: "\t\tallocateDescriptorSetsHandlerStat(device, pAllocateInfo, pDescriptorSets);",
		"freeDescriptorSets"			: "\t\tfreeDescriptorSetsHandlerStat(device, descriptorPool, descriptorSetCount, pDescriptorSets);",
		"createFramebuffer"				: "\t\tcreateFramebufferHandlerStat(device, pCreateInfo, pAllocator, pFramebuffer);",
		"destroyFramebuffer"			: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(framebuffer,framebufferRequestCount,1);\n\t}",
		"createCommandPool"				: "\t\tcreateCommandPoolHandlerStat(device, pCreateInfo, pAllocator, pCommandPool);",
		"resetCommandPool"				: "\t\tresetCommandPoolHandlerStat(device, commandPool, flags);",
		"allocateCommandBuffers"		: "\t\tallocateCommandBuffersHandler(device, pAllocateInfo, pCommandBuffers);",
		"freeCommandBuffers"			: "\t\tfreeCommandBuffersHandler(device, commandPool, commandBufferCount, pCommandBuffers);",
		"createSamplerYcbcrConversion"	: "\t\tcreateSamplerYcbcrConversionHandlerStat(device, pCreateInfo, pAllocator, pYcbcrConversion);",
		"destroySamplerYcbcrConversion"	: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(ycbcrConversion,samplerYcbcrConversionRequestCount,1);\n\t}",
		"getDescriptorSetLayoutSupport"	: "\t\tgetDescriptorSetLayoutSupportHandler(device, pCreateInfo, pSupport);",
#		"" : "surfaceRequestCount",
#		"" : "swapchainRequestCount",
#		"" : "displayModeRequestCount"
		"mapMemory"						: "\t{\n\t\tDDSTAT_LOCK();\n\t\tif(m_falseMemory.size() < (static_cast<std::size_t>(offset+size)))\n\t\t\tm_falseMemory.resize(static_cast<std::size_t>(offset+size));\n\t\t*ppData = (void*)m_falseMemory.data();\n\t}",
		"getBufferMemoryRequirements"	: "\t{\n\t\tDDSTAT_LOCK();\n\t\tpMemoryRequirements->size = 1048576U;\n\t\tpMemoryRequirements->alignment = 1U;\n\t\tpMemoryRequirements->memoryTypeBits = ~0U;\n\t}",
		"getImageMemoryRequirements"	: "\t{\n\t\tDDSTAT_LOCK();\n\t\tpMemoryRequirements->size = 1048576U;\n\t\tpMemoryRequirements->alignment = 1U;\n\t\tpMemoryRequirements->memoryTypeBits = ~0U;\n\t}",
		"getBufferMemoryRequirements2"	: "\t{\n\t\tDDSTAT_LOCK();\n\t\tpMemoryRequirements->memoryRequirements.size = 1048576U;\n\t\tpMemoryRequirements->memoryRequirements.alignment = 1U;\n\t\tpMemoryRequirements->memoryRequirements.memoryTypeBits = ~0U;\n\t}",
		"getImageMemoryRequirements2"	: "\t{\n\t\tDDSTAT_LOCK();\n\t\tpMemoryRequirements->memoryRequirements.size = 1048576U;\n\t\tpMemoryRequirements->memoryRequirements.alignment = 1U;\n\t\tpMemoryRequirements->memoryRequirements.memoryTypeBits = ~0U;\n\t}",
		"getImageSubresourceLayout"		: "\t{\n\t\tDDSTAT_LOCK();\n\t\tpLayout->offset = 0U;\n\t\tpLayout->size = 1048576U;\n\t\tpLayout->rowPitch = 0U;\n\t\tpLayout->arrayPitch = 0U;\n\t\tpLayout->depthPitch = 0U;\n\t}",
		"createPipelineCache"			: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_CREATE(pipelineCacheRequestCount,1);\n\t\t*pPipelineCache = Handle<HANDLE_TYPE_PIPELINE_CACHE>(m_resourceInterface->incResourceCounter());\n\t}",
		"destroyPipelineCache"			: "\t{\n\t\tDDSTAT_LOCK();\n\t\tDDSTAT_HANDLE_DESTROY_IF(pipelineCache,pipelineCacheRequestCount,1);\n\t}",
		"cmdUpdateBuffer"				: "\t\tincreaseCommandBufferSize(commandBuffer, dataSize);",
		"getDeviceQueue"				: "\t\tm_vk.getDeviceQueue(device, queueFamilyIndex, queueIndex, pQueue);",
	}

	statReturns = {
		"VkResult"			: "return VK_SUCCESS;",
		"VkDeviceAddress"	: "return 0u;",
		"uint64_t"			: "return 0u;",
	}
	def makeFuncPtrInterfaceStatisticsImpl ():
		for function in api.functions:
			if function.getType() in functionTypes and not function.isAlias:
				yield ""
				yield "%s %s::%s (%s) const" % (function.returnType, className, getInterfaceName(function), argListToStr(function.arguments))
				yield "{"
				if ( getInterfaceName(function) in normFuncs ) or ( getInterfaceName(function) in statFuncs ):
					yield "\tstd::lock_guard<std::mutex> lock(functionMutex);"
				if getInterfaceName(function) != "getDeviceProcAddr" :
					yield "\tif (m_normalMode)"
				if getInterfaceName(function) in normFuncs :
					yield "%s" % ( normFuncs[getInterfaceName(function)] )
				else:
					yield "\t\t%sm_vk.%s(%s);" % ("return " if function.returnType != "void" else "", getInterfaceName(function), ", ".join(a.name for a in function.arguments))
				if getInterfaceName(function) in statFuncs :
					yield "\telse"
					yield "%s" % ( statFuncs[getInterfaceName(function)] )
				elif getInterfaceName(function)[:3] == "cmd" :
					yield "\telse"
					yield "\t\tincreaseCommandBufferSize(commandBuffer, 0u);"
				if function.returnType in statReturns:
					yield "\t%s" % ( statReturns[function.returnType] )
				yield "}"

	writeInlFile(filename, INL_HEADER, makeFuncPtrInterfaceStatisticsImpl())

def writeStrUtilProto (api, filename):
	def makeStrUtilProto ():
		for line in indentLines(["const char*\tget%sName\t(%s value);" % (enum.name[2:], enum.name) for enum in api.enums if not enum.isAlias]):
			yield line
		yield ""
		for line in indentLines(["inline tcu::Format::Enum<%s>\tget%sStr\t(%s value)\t{ return tcu::Format::Enum<%s>(get%sName, value);\t}" % (e.name, e.name[2:], e.name, e.name, e.name[2:]) for e in api.enums if not e.isAlias]):
			yield line
		yield ""
		for line in indentLines(["inline std::ostream&\toperator<<\t(std::ostream& s, %s value)\t{ return s << get%sStr(value);\t}" % (e.name, e.name[2:]) for e in api.enums if not e.isAlias]):
			yield line
		yield ""
		for line in indentLines(["tcu::Format::Bitfield<32>\tget%sStr\t(%s value);" % (bitfield.name[2:], bitfield.name) for bitfield in api.bitfields if not bitfield.isAlias or bitfield.name=='VkBuildAccelerationStructureFlagsNV']):
			yield line
		yield ""
		for line in indentLines(["std::ostream&\toperator<<\t(std::ostream& s, const %s& value);" % (s.name) for s in api.compositeTypes if not s.isAlias]):
			yield line

	writeInlFile(filename, INL_HEADER, makeStrUtilProto())

def writeStrUtilImpl (api, filename):
	def makeStrUtilImpl ():
		for line in indentLines(["template<> const char*\tgetTypeName<%s>\t(void) { return \"%s\";\t}" % (handle.name, handle.name) for handle in api.handles if not handle.isAlias]):
			yield line

		yield ""
		yield "namespace %s" % PLATFORM_TYPE_NAMESPACE
		yield "{"

		for line in indentLines("std::ostream& operator<< (std::ostream& s, %s\tv) { return s << tcu::toHex(v.internal); }" % ''.join(s) for n, s, c in PLATFORM_TYPES):
			yield line

		yield "}"

		for enum in api.enums:
			if enum.isAlias:
				continue
			yield ""
			yield "const char* get%sName (%s value)" % (enum.name[2:], enum.name)
			yield "{"
			yield "\tswitch (value)"
			yield "\t{"
			enumValues = []
			lastValue = 0x7FFFFFFF
			for n, v in enum.values:
				if (v[:2] != "VK") and (v != lastValue):
					enumValues.append(f"\t\tcase {n}:\treturn \"{n}\";")
				lastValue = v
			enumValues.append("\t\tdefault:\treturn DE_NULL;")
			for line in indentLines(enumValues):
				yield line
			yield "\t}"
			yield "}"

		for bitfield in api.bitfields:
			if bitfield.isAlias:
				if bitfield.name != 'VkBuildAccelerationStructureFlagsNV':
					continue
			yield ""
			yield "tcu::Format::Bitfield<32> get%sStr (%s value)" % (bitfield.name[2:], bitfield.name)
			yield "{"

			if len(bitfield.values) > 0:
				yield "\tstatic const tcu::Format::BitDesc s_desc[] ="
				yield "\t{"
				for line in indentLines(["\t\ttcu::Format::BitDesc(%s,\t\"%s\")," % (n, n) for n, v in bitfield.values]):
					yield line
				yield "\t};"
				yield "\treturn tcu::Format::Bitfield<32>(value, DE_ARRAY_BEGIN(s_desc), DE_ARRAY_END(s_desc));"
			else:
				yield "\treturn tcu::Format::Bitfield<32>(value, DE_NULL, DE_NULL);"
			yield "}"

		bitfieldTypeNames = set([bitfield.name for bitfield in api.bitfields])

		for type in api.compositeTypes:
			if not type.isAlias:
				yield ""
				yield "std::ostream& operator<< (std::ostream& s, const %s& value)" % type.name
				yield "{"
				yield "\ts << \"%s = {\\n\";" % type.name
				for member in type.members:
					memberName	= member.name
					valFmt		= None
					newLine		= ""
					if member.getType() in bitfieldTypeNames:
						valFmt = "get%sStr(value.%s)" % (member.getType()[2:], member.name)
					elif member.getType() == "const char*" or member.getType() == "char*":
						valFmt = "getCharPtrStr(value.%s)" % member.name
					elif member.getType() == PLATFORM_TYPE_NAMESPACE + "::Win32LPCWSTR":
						valFmt = "getWStr(value.%s)" % member.name
					elif member.arraySize != '':
						singleDimensional = not '][' in member.arraySize
						if member.name in ["extensionName", "deviceName", "layerName", "description"]:
							valFmt = "(const char*)value.%s" % member.name
						elif singleDimensional and (member.getType() == 'char' or member.getType() == 'uint8_t'):
							newLine = "'\\n' << "
							valFmt	= "tcu::formatArray(tcu::Format::HexIterator<%s>(DE_ARRAY_BEGIN(value.%s)), tcu::Format::HexIterator<%s>(DE_ARRAY_END(value.%s)))" % (member.getType(), member.name, member.getType(), member.name)
						else:
							if member.name == "memoryTypes" or member.name == "memoryHeaps":
								endIter = "DE_ARRAY_BEGIN(value.%s) + value.%sCount" % (member.name, member.name[:-1])
							else:
								endIter = "DE_ARRAY_END(value.%s)" % member.name
							newLine = "'\\n' << "
							valFmt	= "tcu::formatArray(DE_ARRAY_BEGIN(value.%s), %s)" % (member.name, endIter)
						memberName = member.name
					else:
						valFmt = "value.%s" % member.name
					yield ("\ts << \"\\t%s = \" << " % memberName) + newLine + valFmt + " << '\\n';"
				yield "\ts << '}';"
				yield "\treturn s;"
				yield "}"
	writeInlFile(filename, INL_HEADER, makeStrUtilImpl())


def writeObjTypeImpl (api, filename):
	def makeObjTypeImpl ():

		yield "namespace vk"
		yield "{"

		yield "template<typename T> VkObjectType getObjectType	(void);"

		for line in indentLines(["template<> inline VkObjectType\tgetObjectType<%s>\t(void) { return %s;\t}" % (handle.name, prefixName("VK_OBJECT_TYPE_", handle.name)) for handle in api.handles if not handle.isAlias]):
			yield line

		yield "}"

	writeInlFile(filename, INL_HEADER, makeObjTypeImpl())

class ConstructorFunction:
	def __init__ (self, type, name, objectType, ifaceArgs, arguments):
		self.type		= type
		self.name		= name
		self.objectType	= objectType
		self.ifaceArgs	= ifaceArgs
		self.arguments	= arguments

def getConstructorFunctions (api):
	funcs = []
	ifacesDict = {
		Function.TYPE_PLATFORM: [Variable("const PlatformInterface&", "vk", "")],
		Function.TYPE_INSTANCE: [Variable("const InstanceInterface&", "vk", "")],
		Function.TYPE_DEVICE: [Variable("const DeviceInterface&", "vk", "")]
	}
	for function in api.functions:
		if function.isAlias:
			continue
		if (function.name[:8] == "vkCreate" or function.name == "vkAllocateMemory") and not "createInfoCount" in [a.name for a in function.arguments]:
			if function.name == "vkCreateDisplayModeKHR":
				continue # No way to delete display modes (bug?)

			# \todo [pyry] Rather hacky
			ifaceArgs = ifacesDict[function.getType()]
			if function.name == "vkCreateDevice":
				ifaceArgs = [Variable("const PlatformInterface&", "vkp", ""), Variable("VkInstance", "instance", "")] + ifaceArgs

			assert (function.arguments[-2].type == ["const", "VkAllocationCallbacks", "*"])

			objectType	= function.arguments[-1].type[0] #not getType() but type[0] on purpose
			arguments	= function.arguments[:-1]
			funcs.append(ConstructorFunction(function.getType(), getInterfaceName(function), objectType, ifaceArgs, arguments))
	return funcs

def addVersionDefines(versionSpectrum):
	output = ["#define " + ver.getDefineName() + " " + ver.getInHex() for ver in versionSpectrum if not ver.isStandardVersion()]
	return output

def removeVersionDefines(versionSpectrum):
	output = ["#undef " + ver.getDefineName() for ver in versionSpectrum if not ver.isStandardVersion()]
	return output

def writeRefUtilProto (api, filename):
	functions = getConstructorFunctions(api)

	def makeRefUtilProto ():
		unindented = []
		for line in indentLines(["Move<%s>\t%s\t(%s = DE_NULL);" % (function.objectType, function.name, argListToStr(function.ifaceArgs + function.arguments)) for function in functions]):
			yield line

	writeInlFile(filename, INL_HEADER, makeRefUtilProto())

def writeRefUtilImpl (api, filename):
	functions = getConstructorFunctions(api)

	def makeRefUtilImpl ():
		yield "namespace refdetails"
		yield "{"
		yield ""

		for function in api.functions:
			if function.getType() == Function.TYPE_DEVICE \
			and (function.name[:9] == "vkDestroy" or function.name == "vkFreeMemory") \
			and not function.name == "vkDestroyDevice" \
			and not function.isAlias:
				objectType = function.arguments[-2].getType()
				yield "template<>"
				yield "void Deleter<%s>::operator() (%s obj) const" % (objectType, objectType)
				yield "{"
				yield "\tm_deviceIface->%s(m_device, obj, m_allocator);" % (getInterfaceName(function))
				yield "}"
				yield ""

		yield "} // refdetails"
		yield ""

		dtorDict = {
			Function.TYPE_PLATFORM: "object",
			Function.TYPE_INSTANCE: "instance",
			Function.TYPE_DEVICE: "device"
		}

		for function in functions:
			deleterArgsString = ''
			if function.name == "createDevice":
				# createDevice requires two additional parameters to setup VkDevice deleter
				deleterArgsString = "vkp, instance, object, " +  function.arguments[-1].name
			else:
				deleterArgsString = "vk, %s, %s" % (dtorDict[function.type], function.arguments[-1].name)

			yield "Move<%s> %s (%s)" % (function.objectType, function.name, argListToStr(function.ifaceArgs + function.arguments))
			yield "{"
			yield "\t%s object = 0;" % function.objectType
			yield "\tVK_CHECK(vk.%s(%s));" % (function.name, ", ".join([a.name for a in function.arguments] + ["&object"]))
			yield "\treturn Move<%s>(check<%s>(object), Deleter<%s>(%s));" % (function.objectType, function.objectType, function.objectType, deleterArgsString)
			yield "}"
			yield ""

	writeInlFile(filename, INL_HEADER, makeRefUtilImpl())

def writeStructTraitsImpl (api, filename):
	def gen ():
		for type in api.compositeTypes:
			if type.getClassName() == "struct" and type.members[0].name == "sType" and not type.isAlias and type.name != "VkBaseOutStructure" and type.name != "VkBaseInStructure":
				yield "template<> VkStructureType getStructureType<%s> (void)" % type.name
				yield "{"
				yield "\treturn %s;" % prefixName("VK_STRUCTURE_TYPE_", type.name)
				yield "}"
				yield ""

	writeInlFile(filename, INL_HEADER, gen())

def writeNullDriverImpl (api, filename):
	def genNullDriverImpl ():
		specialFuncNames	= [
				"vkCreateGraphicsPipelines",
				"vkCreateComputePipelines",
				"vkCreateRayTracingPipelinesNV",
				"vkCreateRayTracingPipelinesKHR",
				"vkGetInstanceProcAddr",
				"vkGetDeviceProcAddr",
				"vkEnumeratePhysicalDevices",
				"vkEnumerateInstanceExtensionProperties",
				"vkEnumerateDeviceExtensionProperties",
				"vkGetPhysicalDeviceFeatures",
				"vkGetPhysicalDeviceFeatures2KHR",
				"vkGetPhysicalDeviceProperties",
				"vkGetPhysicalDeviceProperties2KHR",
				"vkGetPhysicalDeviceQueueFamilyProperties",
				"vkGetPhysicalDeviceMemoryProperties",
				"vkGetPhysicalDeviceFormatProperties",
				"vkGetPhysicalDeviceImageFormatProperties",
				"vkGetDeviceQueue",
				"vkGetBufferMemoryRequirements",
				"vkGetBufferMemoryRequirements2KHR",
				"vkGetImageMemoryRequirements",
				"vkGetImageMemoryRequirements2KHR",
				"vkAllocateMemory",
				"vkMapMemory",
				"vkUnmapMemory",
				"vkAllocateDescriptorSets",
				"vkFreeDescriptorSets",
				"vkResetDescriptorPool",
				"vkAllocateCommandBuffers",
				"vkFreeCommandBuffers",
				"vkCreateDisplayModeKHR",
				"vkCreateSharedSwapchainsKHR",
				"vkGetPhysicalDeviceExternalBufferPropertiesKHR",
				"vkGetPhysicalDeviceImageFormatProperties2KHR",
				"vkGetMemoryAndroidHardwareBufferANDROID",
			]

		coreFunctions		= [f for f in api.functions if not f.isAlias]
		specialFuncs		= [f for f in coreFunctions if f.name in specialFuncNames]
		createFuncs			= [f for f in coreFunctions if (f.name[:8] == "vkCreate" or f.name == "vkAllocateMemory") and not f in specialFuncs]
		destroyFuncs		= [f for f in coreFunctions if (f.name[:9] == "vkDestroy" or f.name == "vkFreeMemory") and not f in specialFuncs]
		dummyFuncs			= [f for f in coreFunctions if f not in specialFuncs + createFuncs + destroyFuncs]

		def getHandle (name):
			for handle in api.handles:
				if handle.name == name[0]:
					return handle
			raise Exception("No such handle: %s" % name)

		for function in createFuncs:
			objectType	= function.arguments[-1].type[:-1]
			argsStr		= ", ".join([a.name for a in function.arguments[:-1]])

			yield "VKAPI_ATTR %s VKAPI_CALL %s (%s)" % (function.returnType, getInterfaceName(function), argListToStr(function.arguments))
			yield "{"
			yield "\tDE_UNREF(%s);" % function.arguments[-2].name

			if getHandle(objectType).type == Handle.TYPE_NONDISP:
				yield "\tVK_NULL_RETURN((*%s = allocateNonDispHandle<%s, %s>(%s)));" % (function.arguments[-1].name, objectType[0][2:], objectType[0], argsStr)
			else:
				yield "\tVK_NULL_RETURN((*%s = allocateHandle<%s, %s>(%s)));" % (function.arguments[-1].name, objectType[0][2:], objectType[0], argsStr)
			yield "}"
			yield ""

		for function in destroyFuncs:
			objectArg	= function.arguments[-2]

			yield "VKAPI_ATTR %s VKAPI_CALL %s (%s)" % (function.returnType, getInterfaceName(function), argListToStr(function.arguments))
			yield "{"
			for arg in function.arguments[:-2]:
				yield "\tDE_UNREF(%s);" % arg.name

			if getHandle(objectArg.type).type == Handle.TYPE_NONDISP:
				yield "\tfreeNonDispHandle<%s, %s>(%s, %s);" % (objectArg.getType()[2:], objectArg.getType(), objectArg.name, function.arguments[-1].name)
			else:
				yield "\tfreeHandle<%s, %s>(%s, %s);" % (objectArg.getType()[2:], objectArg.getType(), objectArg.name, function.arguments[-1].name)

			yield "}"
			yield ""

		for function in dummyFuncs:
			yield "VKAPI_ATTR %s VKAPI_CALL %s (%s)" % (function.returnType, getInterfaceName(function), argListToStr(function.arguments))
			yield "{"
			for arg in function.arguments:
				yield "\tDE_UNREF(%s);" % arg.name
			if function.returnType != "void":
				yield "\treturn VK_SUCCESS;"
			yield "}"
			yield ""

		def genFuncEntryTable (type, name):
			funcs = [f for f in api.functions if f.getType() == type]
			refFuncs = {}
			for f in api.functions:
				if f.alias != None:
					refFuncs[f.alias] = f

			yield "static const tcu::StaticFunctionLibrary::Entry %s[] =" % name
			yield "{"
			for line in indentLines(["\tVK_NULL_FUNC_ENTRY(%s,\t%s)," % (function.name, getInterfaceName(function if not function.isAlias else refFuncs[function])) for function in funcs]):
				yield line
			yield "};"
			yield ""

		# Func tables
		for line in genFuncEntryTable(Function.TYPE_PLATFORM, "s_platformFunctions"):
			yield line

		for line in genFuncEntryTable(Function.TYPE_INSTANCE, "s_instanceFunctions"):
			yield line

		for line in genFuncEntryTable(Function.TYPE_DEVICE, "s_deviceFunctions"):
			yield line

	writeInlFile(filename, INL_HEADER, genNullDriverImpl())

def writeTypeUtil (api, filename):
	# Structs filled by API queries are not often used in test code
	QUERY_RESULT_TYPES = set([
			"VkPhysicalDeviceFeatures",
			"VkPhysicalDeviceLimits",
			"VkFormatProperties",
			"VkImageFormatProperties",
			"VkPhysicalDeviceSparseProperties",
			"VkQueueFamilyProperties",
			"VkMemoryType",
			"VkMemoryHeap",
			"StdVideoH264SpsVuiFlags",
			"StdVideoH264SpsFlags",
			"StdVideoH264PpsFlags",
			"StdVideoDecodeH264PictureInfoFlags",
			"StdVideoDecodeH264ReferenceInfoFlags",
			"StdVideoDecodeH264MvcElementFlags",
			"StdVideoEncodeH264SliceHeaderFlags",
			"StdVideoEncodeH264PictureInfoFlags",
			"StdVideoEncodeH264RefMgmtFlags",
			"StdVideoEncodeH264ReferenceInfoFlags",
			"StdVideoH265HrdFlags",
			"StdVideoH265VpsFlags",
			"StdVideoH265SpsVuiFlags",
			"StdVideoH265SpsFlags",
			"StdVideoH265PpsFlags",
			"StdVideoDecodeH265PictureInfoFlags",
			"StdVideoDecodeH265ReferenceInfoFlags",
			"StdVideoEncodeH265PictureInfoFlags",
			"StdVideoEncodeH265SliceHeaderFlags",
			"StdVideoEncodeH265ReferenceModificationFlags",
			"StdVideoEncodeH265ReferenceInfoFlags",
			"StdVideoEncodeH265SliceSegmentHeaderFlags",
		])
	COMPOSITE_TYPES = set([t.name for t in api.compositeTypes if not t.isAlias])

	def isSimpleStruct (type):
		def hasArrayMember (type):
			for member in type.members:
				if member.arraySize != '':
					return True
			return False

		def hasCompositeMember (type):
			for member in type.members:
				if member.getType() in COMPOSITE_TYPES:
					return True
			return False

		return type.typeClass == CompositeType.CLASS_STRUCT and \
		type.members[0].getType() != "VkStructureType" and \
		not type.name in QUERY_RESULT_TYPES and \
		not hasArrayMember(type) and \
		not hasCompositeMember(type)

	def gen ():
		for type in api.compositeTypes:
			if not isSimpleStruct(type) or type.isAlias:
				continue

			name = type.name[2:] if type.name[:2].lower() == "vk" else type.name

			yield ""
			yield "inline %s make%s (%s)" % (type.name, name, argListToStr(type.members))
			yield "{"
			yield "\t%s res;" % type.name
			for line in indentLines(["\tres.%s\t= %s;" % (m.name, m.name) for m in type.members]):
				yield line
			yield "\treturn res;"
			yield "}"

	writeInlFile(filename, INL_HEADER, gen())

def writeDriverIds(apiName, filename):

	driverIdsString = []
	driverIdsString.append("static const struct\n"
					 "{\n"
					 "\tstd::string driver;\n"
					 "\tuint32_t id;\n"
					 "} driverIds [] =\n"
					 "{")

	vulkanHeaderFile = { "" :	os.path.join(VULKAN_HEADERS_INCLUDE_DIR, "vulkan", "vulkan_core.h"),
						"SC" :	os.path.join(SCRIPTS_SRC_DIR, "vulkan_sc_core.h") }
	vulkanCore = readFile(vulkanHeaderFile[apiName])

	items = re.search(r'(?:typedef\s+enum\s+VkDriverId\s*{)((.*\n)*)(?:}\s*VkDriverId\s*;)', vulkanCore).group(1).split(',')
	driverItems = dict()
	for item in items:
		item.strip()
		splitted = item.split('=')
		key = splitted[0].strip()
		value_str = splitted[1].strip()
		try: # is this previously defined value?
			value = driverItems[value_str]
		except:
			value = value_str
			value_str = ""
		if value_str:
			value_str = "\t// " + value_str
		driverItems[key] = value
		if not item == items[-1]:
			driverIdsString.append("\t{\"" + key + "\"" + ", " + value + "}," + value_str)
		else:
			driverIdsString.append("\t{\"" + key + "\"" + ", " + value + "}" + value_str)
		driverItems[key] = value

	driverIdsString.append("};")

	writeInlFile(filename, INL_HEADER, driverIdsString)


def writeSupportedExtensions(apiName, api, filename):

	def writeExtensionsForVersions(map):
		result = []
		for version in map:
			result.append("	if (coreVersion >= " + str(version) + ")")
			result.append("	{")
			for extension in map[version]:
				result.append('		dst.push_back("' + extension.name + '");')
			result.append("	}")

		if not map:
			result.append("	DE_UNREF(coreVersion);")

		return result

	instanceMap		= {}
	deviceMap		= {}
	versionSet		= set()

	for ext in api.extensions:
		if ext.versionInCore != None:
			currVersion = Version(ext.versionInCore[1:])
			# VulkanSC is based on Vulkan 1.2. Any Vulkan version greater than 1.2 should be excluded
			if apiName=='SC' and currVersion.api==0 and currVersion.major==1 and currVersion.minor>2:
				continue
			if ext.versionInCore[0] == 'instance':
				list = instanceMap.get(Version(ext.versionInCore[1:]))
				instanceMap[Version(ext.versionInCore[1:])] = list + [ext] if list else [ext]
			else:
				list = deviceMap.get(Version(ext.versionInCore[1:]))
				deviceMap[Version(ext.versionInCore[1:])] = list + [ext] if list else [ext]
			versionSet.add(Version(ext.versionInCore[1:]))

	# add list of extensions missing in Vulkan SC specification
	if apiName == 'SC':
		for extensionName, data in api.additionalExtensionData:
			# make sure that this extension was registered
			if 'register_extension' not in data.keys():
				continue
			# save array containing 'device' or 'instance' string followed by the optional vulkan version in which this extension is core;
			# note that register_extension section is also required for partialy promoted extensions like VK_EXT_extended_dynamic_state2
			# but those extensions should not fill 'core' tag
			match = re.match("(\d).(\d).(\d).(\d)", data['register_extension']['core'])
			if match != None:
				currVersion = Version([int(match.group(1)), int(match.group(2)), int(match.group(3)), int(match.group(4))])
				ext = Extension(extensionName, 0, 0, 0, 0, 0, 0, 0, 0, 0)
				if currVersion.api==0 and currVersion.major==1 and currVersion.minor>2:
					continue
				if data['register_extension']['type'] == 'instance':
					list = instanceMap.get(currVersion)
					instanceMap[currVersion] = list + [ext] if list else [ext]
				else:
					list = deviceMap.get(currVersion)
					deviceMap[currVersion] = list + [ext] if list else [ext]
				versionSet.add(currVersion)

	lines = addVersionDefines(versionSet) + [
	"",
	"void getCoreDeviceExtensionsImpl (uint32_t coreVersion, ::std::vector<const char*>&%s)" % (" dst" if len(deviceMap) != 0 or apiName == 'SC' else ""),
	"{"] + writeExtensionsForVersions(deviceMap) + [
	"}",
	"",
	"void getCoreInstanceExtensionsImpl (uint32_t coreVersion, ::std::vector<const char*>&%s)" % (" dst" if len(instanceMap) != 0 or apiName == 'SC' else ""),
	"{"] + writeExtensionsForVersions(instanceMap) + [
	"}",
	""] + removeVersionDefines(versionSet)
	writeInlFile(filename, INL_HEADER, lines)


def writeExtensionFunctions (api, filename):

	def isInstanceExtension (ext):
		if ext.name and ext.functions:
			if ext.functions[0].getType() == Function.TYPE_INSTANCE:
				return True
			else:
				return False

	def isDeviceExtension (ext):
		if ext.name and ext.functions:
			if ext.functions[0].getType() == Function.TYPE_DEVICE:
				return True
			else:
				return False

	def writeExtensionNameArrays ():
		instanceExtensionNames = []
		deviceExtensionNames = []
		for ext in api.extensions:
			if ext.name and isInstanceExtension(ext):
				instanceExtensionNames += [ext.name]
			elif ext.name and isDeviceExtension(ext):
				deviceExtensionNames += [ext.name]
		yield '::std::string instanceExtensionNames[] =\n{'
		for instanceExtName in instanceExtensionNames:
			if (instanceExtName == instanceExtensionNames[len(instanceExtensionNames) - 1]):
				yield '\t"%s"' % instanceExtName
			else:
				yield '\t"%s",' % instanceExtName
		yield '};\n'
		yield '::std::string deviceExtensionNames[] =\n{'
		for deviceExtName in deviceExtensionNames:
			if (deviceExtName == deviceExtensionNames[len(deviceExtensionNames) - 1]):
				yield '\t"%s"' % deviceExtName
			else:
				yield '\t"%s",' % deviceExtName
		yield '};'

	def writeExtensionFunctions (functionType):
		isFirstWrite = True
		dg_list = []	# Device groups functions need special casing, as Vulkan 1.0 keeps them in VK_KHR_device_groups whereas 1.1 moved them into VK_KHR_swapchain
		if functionType == Function.TYPE_INSTANCE:
			yield 'void getInstanceExtensionFunctions (uint32_t apiVersion, ::std::string extName, ::std::vector<const char*>& functions)\n{'
			dg_list = ["vkGetPhysicalDevicePresentRectanglesKHR"]
		elif functionType == Function.TYPE_DEVICE:
			yield 'void getDeviceExtensionFunctions (uint32_t apiVersion, ::std::string extName, ::std::vector<const char*>& functions)\n{'
			dg_list = ["vkGetDeviceGroupPresentCapabilitiesKHR", "vkGetDeviceGroupSurfacePresentModesKHR", "vkAcquireNextImage2KHR"]
		for ext in api.extensions:
			funcNames = []
			if ext.name:
				for func in ext.functions:
					if func.getType() == functionType:
						# only add functions with same vendor as extension
						# this is a workaroudn for entrypoints requiring more
						# than one excetions and lack of the dependency in vulkan_core.h
						vendor = ext.name.split('_')[1]
						if func.name.endswith(vendor):
							funcNames.append(func.name)
			if ext.name:
				yield '\tif (extName == "%s")' % ext.name
				yield '\t{'
				for funcName in funcNames:
					if funcName in dg_list:
						yield '\t\tif(apiVersion >= VK_API_VERSION_1_1) functions.push_back("%s");' % funcName
					else:
						yield '\t\tfunctions.push_back("%s");' % funcName
				if ext.name == "VK_KHR_device_group":
					for dg_func in dg_list:
						yield '\t\tif(apiVersion < VK_API_VERSION_1_1) functions.push_back("%s");' % dg_func
				yield '\t\treturn;'
				yield '\t}'
				isFirstWrite = False
		if not isFirstWrite:
			yield '\tDE_FATAL("Extension name not found");'
			yield '}'

	lines = ['']
	for line in writeExtensionFunctions(Function.TYPE_INSTANCE):
		lines += [line]
	lines += ['']
	for line in writeExtensionFunctions(Function.TYPE_DEVICE):
		lines += [line]
	lines += ['']
	for line in writeExtensionNameArrays():
		lines += [line]

	writeInlFile(filename, INL_HEADER, lines)

def writeCoreFunctionalities(api, filename):
	functionOriginValues    = ["FUNCTIONORIGIN_PLATFORM", "FUNCTIONORIGIN_INSTANCE", "FUNCTIONORIGIN_DEVICE"]
	lines					= addVersionDefines(api.versions) + [
	"",
	'enum FunctionOrigin', '{'] + [line for line in indentLines([
	'\t' + functionOriginValues[0] + '\t= 0,',
	'\t' + functionOriginValues[1] + ',',
	'\t' + functionOriginValues[2]])] + [
	"};",
	"",
	"typedef ::std::pair<const char*, FunctionOrigin> FunctionInfo;",
	"typedef ::std::vector<FunctionInfo> FunctionInfosList;",
	"typedef ::std::map<uint32_t, FunctionInfosList> ApisMap;",
	"",
	"void initApisMap (ApisMap& apis)",
	"{",
	"	apis.clear();"] + [
	"	apis.insert(::std::pair<uint32_t, FunctionInfosList>(" + str(v) + ", FunctionInfosList()));" for v in api.versions] + [
	""]

	apiVersions = []
	for index, v in enumerate(api.versions):
		funcs = []
		apiVersions.append("VK_VERSION_{0}_{1}".format(v.major, v.minor))
		# iterate over all functions that are core in latest vulkan version
		# note that first item in api.extension array are actually all definitions that are in vulkan.h.in before section with extensions
		for fun in api.extensions[0].functions:
			if fun.apiVersion in apiVersions:
				funcs.append('	apis[' + str(v) + '].push_back(FunctionInfo("' + fun.name + '",\t' + functionOriginValues[fun.getType()] + '));')
		lines = lines + [line for line in indentLines(funcs)] + [""]

	lines = lines + ["}", ""] + removeVersionDefines(api.versions)
	writeInlFile(filename, INL_HEADER, lines)

def camelToSnake(name):
    name = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', name)
    return re.sub('([a-z0-9])([A-Z])', r'\1_\2', name).lower()

def writeDeviceFeatures2(api, filename):
	def structInAPI(name):
		for c in api.compositeTypes:
			if c.name == name:
				return True
		return False

	# list of structures that should be tested with getPhysicalDeviceFeatures2
	# this is not posible to determine from vulkan_core.h, if new feature structures
	# are added they should be manualy added to this list
	testedStructures = [
		'VkPhysicalDevice4444FormatsFeaturesEXT',
		'VkPhysicalDevice8BitStorageFeatures',
		'VkPhysicalDevice16BitStorageFeatures',
		'VkPhysicalDeviceAccelerationStructureFeaturesKHR',
		'VkPhysicalDeviceASTCDecodeFeaturesEXT',
		'VkPhysicalDeviceBlendOperationAdvancedFeaturesEXT',
		'VkPhysicalDeviceBufferDeviceAddressFeaturesEXT',
		'VkPhysicalDeviceBufferDeviceAddressFeatures',
		'VkPhysicalDeviceConditionalRenderingFeaturesEXT',
		'VkPhysicalDeviceCustomBorderColorFeaturesEXT',
		'VkPhysicalDeviceColorWriteEnableFeaturesEXT',
		'VkPhysicalDeviceDescriptorIndexingFeatures',
		'VkPhysicalDeviceDepthClipEnableFeaturesEXT',
		'VkPhysicalDeviceDynamicRenderingFeatures',
		'VkPhysicalDeviceExtendedDynamicStateFeaturesEXT',
		'VkPhysicalDeviceExtendedDynamicState2FeaturesEXT',
		'VkPhysicalDeviceFragmentDensityMapFeaturesEXT',
		'VkPhysicalDeviceFragmentDensityMap2FeaturesEXT',
		'VkPhysicalDeviceFragmentShadingRateFeaturesKHR',
		'VkPhysicalDeviceGlobalPriorityQueryFeaturesKHR',
		'VkPhysicalDeviceInlineUniformBlockFeatures',
		'VkPhysicalDeviceIndexTypeUint8FeaturesEXT',
		'VkPhysicalDeviceImagelessFramebufferFeatures',
		'VkPhysicalDeviceImageRobustnessFeatures',
		'VkPhysicalDeviceHostQueryResetFeatures',
		'VkPhysicalDeviceLineRasterizationFeaturesEXT',
		'VkPhysicalDeviceMaintenance4Features',
		'VkPhysicalDeviceMultiviewFeatures',
		'VkPhysicalDeviceMultiDrawFeaturesEXT',
		'VkPhysicalDeviceMemoryPriorityFeaturesEXT',
		'VkPhysicalDeviceDeviceMemoryReportFeaturesEXT',
		'VkPhysicalDevicePerformanceQueryFeaturesKHR',
		'VkPhysicalDevicePipelineCreationCacheControlFeatures',
		'VkPhysicalDevicePipelineExecutablePropertiesFeaturesKHR',
		'VkPhysicalDevicePresentIdFeaturesKHR',
		'VkPhysicalDevicePresentWaitFeaturesKHR',
		'VkPhysicalDeviceProtectedMemoryFeatures',
		'VkPhysicalDeviceProvokingVertexFeaturesEXT',
		'VkPhysicalDevicePrimitiveTopologyListRestartFeaturesEXT',
		'VkPhysicalDevicePrivateDataFeatures',
		'VkPhysicalDeviceRayTracingPipelineFeaturesKHR',
		'VkPhysicalDeviceRayQueryFeaturesKHR',
		'VkPhysicalDeviceRobustness2FeaturesEXT',
		'VkPhysicalDeviceSamplerYcbcrConversionFeatures',
		'VkPhysicalDeviceScalarBlockLayoutFeatures',
		'VkPhysicalDeviceSeparateDepthStencilLayoutsFeatures',
		'VkPhysicalDeviceShaderAtomicInt64Features',
		'VkPhysicalDeviceShaderAtomicFloatFeaturesEXT',
		'VkPhysicalDeviceShaderAtomicFloat2FeaturesEXT',
		'VkPhysicalDeviceShaderFloat16Int8Features',
		'VkPhysicalDeviceShaderClockFeaturesKHR',
		'VkPhysicalDeviceShaderDemoteToHelperInvocationFeatures',
		'VkPhysicalDeviceShaderDrawParametersFeatures',
		'VkPhysicalDeviceShaderIntegerDotProductFeatures',
		'VkPhysicalDeviceShaderSubgroupExtendedTypesFeatures',
		'VkPhysicalDeviceShaderTerminateInvocationFeatures',
		'VkPhysicalDeviceSubgroupSizeControlFeatures',
		'VkPhysicalDeviceSynchronization2Features',
		'VkPhysicalDeviceFragmentShaderInterlockFeaturesEXT',
		'VkPhysicalDeviceTexelBufferAlignmentFeaturesEXT',
		'VkPhysicalDeviceTextureCompressionASTCHDRFeatures',
		'VkPhysicalDeviceTimelineSemaphoreFeatures',
		'VkPhysicalDeviceTransformFeedbackFeaturesEXT',
		'VkPhysicalDeviceUniformBufferStandardLayoutFeatures',
		'VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR',
		'VkPhysicalDeviceVariablePointersFeatures',
		'VkPhysicalDeviceVertexAttributeDivisorFeaturesEXT',
		'VkPhysicalDeviceVertexInputDynamicStateFeaturesEXT',
		'VkPhysicalDeviceVulkanMemoryModelFeaturesKHR',
		'VkPhysicalDeviceYcbcrImageArraysFeaturesEXT',
		'VkPhysicalDeviceYcbcr2Plane444FormatsFeaturesEXT',
		'VkPhysicalDeviceZeroInitializeWorkgroupMemoryFeatures',
	]

	# helper class used to encapsulate all data needed during generation
	class StructureDetail:
		def __init__ (self, name):
			nameResult			= re.search('(.*)Features(.*)', name[len('VkPhysicalDevice'):])
			nameSplitUp			= ''
			# generate structure type name from structure name
			# note that sometimes digits are separated with '_':
			# VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FRAGMENT_DENSITY_MAP_2_FEATURES_EXT
			# but mostly they are not:
			# VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT16_INT8_FEATURES
			specialCaseDict = {
				'FragmentDensityMap2'			: ['FRAGMENT', 'DENSITY', 'MAP', '2'],
				'Ycbcr2Plane444Formats'			: ['YCBCR', '2', 'PLANE', '444', 'FORMATS'],
				'ASTCDecode'					: ['ASTC', 'DECODE'],
				'4444Formats'					: ['4444', 'FORMATS'],
				'TextureCompressionASTCHDR'		: ['TEXTURE', 'COMPRESSION', 'ASTC', 'HDR'],
				'Synchronization2'				: ['SYNCHRONIZATION', '2'],
				'ShaderAtomicFloat2'			: ['SHADER', 'ATOMIC', 'FLOAT', '2'],
				'Robustness2'					: ['ROBUSTNESS', '2'],
				'Maintenance4'					: ['MAINTENANCE', '4'],
				'ExtendedDynamicState2'			: ['EXTENDED', 'DYNAMIC', 'STATE', '2'],
			}
			nameSplitUp = specialCaseDict.get(nameResult.group(1))
			if nameSplitUp == None:
				nameSplit		= re.findall(r'[1-9A-Z]+(?:[a-z1-9]+|[A-Z]*(?=[A-Z]|$))', nameResult.group(1))
				nameSplitUp		= map(str.upper, nameSplit)
			nameSplitUp = list(nameSplitUp) + ['FEATURES']
			# check if there is extension suffix
			if (len(nameResult.group(2)) != 0):
				nameSplitUp.append(nameResult.group(2))
			self.name			= name
			self.sType			= 'VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_' + '_'.join(nameSplitUp)
			self.instanceName	= 'd' + name[11:]
			self.flagName		= 'is' + name[16:]
			self.extension		= None
			self.api			= None
			self.major			= None
			self.minor			= None
			self.members		= []
	# helper extension class used in algorith below
	class StructureFoundContinueToNextOne(Exception):
		pass
	existingStructures = list(filter(structInAPI, testedStructures)) # remove features not found in API ( important for Vulkan SC )
	testedStructureDetail = [StructureDetail(struct) for struct in existingStructures]
	# iterate over all searched structures and find extensions that enable them
	for structureDetail in testedStructureDetail:
		try:
			# iterate over all extensions
			for extension in api.extensions[1:]:
				# check composite types and typedefs in case extension is part of core
				for structureList in [extension.compositeTypes, extension.typedefs]:
					# iterate over all structures added by extension
					for extensionStructure in structureList:
						# compare checked structure name to name of structure from extension
						if structureDetail.name == extensionStructure.name:
							structureDetail.extension = extension.name
							if extension.versionInCore is not None:
								structureDetail.api   = extension.versionInCore[1]
								structureDetail.major = extension.versionInCore[2]
								structureDetail.minor = extension.versionInCore[3]
							raise StructureFoundContinueToNextOne
		except StructureFoundContinueToNextOne:
			continue
	for structureDetail in testedStructureDetail:
		for compositeType in api.compositeTypes:
			if structureDetail.name != compositeType.name:
				continue
			structureMembers = compositeType.members[2:]
			structureDetail.members = [m.name for m in structureMembers]
			if structureDetail.major is not None:
				break
			# if structure was not added with extension then check if
			# it was added directly with one of vulkan versions
			apiVersion = compositeType.apiVersion
			if apiVersion is None:
				continue
			structureDetail.api   = apiVersion.api
			structureDetail.major = apiVersion.major
			structureDetail.minor = apiVersion.minor
			break
	# generate file content
	structureDefinitions = []
	featureEnabledFlags = []
	clearStructures = []
	structureChain = []
	logStructures = []
	verifyStructures = []
	for index, structureDetail in enumerate(testedStructureDetail):
		# create two instances of each structure
		nameSpacing = '\t'
		structureDefinitions.append(structureDetail.name + nameSpacing + structureDetail.instanceName + '[count];')
		# create flags that check if proper extension or vulkan version is available
		condition	= ''
		extension	= structureDetail.extension
		major		= structureDetail.major
		if extension is not None:
			condition = ' checkExtension(properties, "' + extension + '")'
		if major is not None:
			if condition != '':
				condition += ' || '
			else:
				condition += ' '
			condition += 'context.contextSupports(vk::ApiVersion(' + str(structureDetail.api) + ', ' + str(major) + ', ' + str(structureDetail.minor) + ', 0))'
		if condition == '':
			condition = 'true'
		condition += ';'
		nameSpacing = '\t' * int((len(structureDetail.name) - 4) / 4)
		featureEnabledFlags.append('const bool' + nameSpacing + structureDetail.flagName + ' =' + condition)
		# clear memory of each structure
		clearStructures.append('\tdeMemset(&' + structureDetail.instanceName + '[ndx], 0xFF * ndx, sizeof(' + structureDetail.name + '));')
		# construct structure chain
		nextInstanceName = 'DE_NULL';
		if index < len(testedStructureDetail)-1:
			nextInstanceName = '&' + testedStructureDetail[index+1].instanceName + '[ndx]'
		structureChain.append([
			'\t\t' + structureDetail.instanceName + '[ndx].sType = ' + structureDetail.flagName + ' ? ' + structureDetail.sType + ' : VK_STRUCTURE_TYPE_MAX_ENUM;',
			'\t\t' + structureDetail.instanceName + '[ndx].pNext = DE_NULL;'])
		# construct log section
		logStructures.append([
			'\tif (' + structureDetail.flagName + ')',
			'\t\tlog << TestLog::Message << ' + structureDetail.instanceName + '[0] << TestLog::EndMessage;'
			])
		#construct verification section
		verifyStructure = []
		verifyStructure.append('\tif (' + structureDetail.flagName + ' &&')
		for index, m in enumerate(structureDetail.members):
			prefix = '\t\t(' if index == 0 else '\t\t '
			postfix = '))' if index == len(structureDetail.members)-1 else ' ||'
			verifyStructure.append(prefix + structureDetail.instanceName + '[0].' + m + ' != ' + structureDetail.instanceName + '[1].' + m + postfix)
		if len(structureDetail.members) == 0:
			verifyStructure.append('\t\tfalse)')
		verifyStructure.append('\t{\n\t\tTCU_FAIL("Mismatch between ' + structureDetail.name + '");\n\t}')
		verifyStructures.append(verifyStructure)

	# construct file content
	stream = []

	# individual test functions
	for n, x in enumerate(testedStructureDetail):
		stream.append("tcu::TestStatus testPhysicalDeviceFeature" + x.instanceName[len('device'):]+" (Context& context)")
		stream.append("""{
	const VkPhysicalDevice		physicalDevice	= context.getPhysicalDevice();
	const CustomInstance		instance		(createCustomInstanceWithExtension(context, "VK_KHR_get_physical_device_properties2"));
	const InstanceDriver&		vki				(instance.getDriver());
	const int					count			= 2u;
	TestLog&					log				= context.getTestContext().getLog();
	VkPhysicalDeviceFeatures2	extFeatures;
	vector<VkExtensionProperties> properties	= enumerateDeviceExtensionProperties(vki, physicalDevice, DE_NULL);
""")
		stream.append("\t"+structureDefinitions[n])
		stream.append("\t"+featureEnabledFlags[n])
		stream.append('')
		stream.append('\tfor (int ndx = 0; ndx < count; ++ndx)\n\t{')
		stream.append("\t" + clearStructures[n])
		stream.extend(structureChain[n])
		stream.append('')
		stream.append(
				'\t\tdeMemset(&extFeatures.features, 0xcd, sizeof(extFeatures.features));\n'
				'\t\textFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;\n'
				'\t\textFeatures.pNext = &' + testedStructureDetail[n].instanceName + '[ndx];\n\n'
				'\t\tvki.getPhysicalDeviceFeatures2(physicalDevice, &extFeatures);')
		stream.append('\t}\n')
		stream.extend(logStructures[n])
		stream.append('')
		stream.extend(verifyStructures[n])
		stream.append('\treturn tcu::TestStatus::pass("Querying succeeded");')
		stream.append("}\n")

	# function to create tests
	stream.append("""
void addSeparateFeatureTests (tcu::TestCaseGroup* testGroup)
{
""")
	for x in testedStructureDetail:
		stream.append('\taddFunctionCase(testGroup, "' + camelToSnake(x.instanceName[len('device'):]) + '", "' + x.name + '", testPhysicalDeviceFeature' + x.instanceName[len('device'):] + ');')
	stream.append('}\n')

	# write out
	writeInlFile(filename, INL_HEADER, stream)

def generateDeviceFeaturesDefs(apiName, src):
	# look for definitions
	ptrnSType	= r'VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_(\w+)_FEATURES(\w*)\s*='
	matches		= re.findall(ptrnSType, src, re.M)
	matches		= sorted(matches, key=lambda m: m[0])
	# hardcoded list of core extensions having features and missing from Vulkan SC
	missingVulkanSCExt = \
		'#define VK_KHR_16BIT_STORAGE_EXTENSION_NAME \"VK_KHR_16bit_storage\"\n' \
		'#define VK_KHR_8BIT_STORAGE_EXTENSION_NAME \"VK_KHR_8bit_storage\"\n' \
		'#define VK_KHR_BUFFER_DEVICE_ADDRESS_EXTENSION_NAME \"VK_KHR_buffer_device_address\"\n' \
		'#define VK_EXT_DESCRIPTOR_INDEXING_EXTENSION_NAME \"VK_EXT_descriptor_indexing\"\n' \
		'#define VK_EXT_HOST_QUERY_RESET_EXTENSION_NAME \"VK_EXT_host_query_reset\"\n' \
		'#define VK_KHR_IMAGELESS_FRAMEBUFFER_EXTENSION_NAME \"VK_KHR_imageless_framebuffer\"\n' \
		'#define VK_KHR_MULTIVIEW_EXTENSION_NAME   \"VK_KHR_multiview\"\n' \
		'#define VK_KHR_SAMPLER_YCBCR_CONVERSION_EXTENSION_NAME \"VK_KHR_sampler_ycbcr_conversion\"\n' \
		'#define VK_EXT_SCALAR_BLOCK_LAYOUT_EXTENSION_NAME \"VK_EXT_scalar_block_layout\"\n' \
		'#define VK_KHR_SEPARATE_DEPTH_STENCIL_LAYOUTS_EXTENSION_NAME \"VK_KHR_separate_depth_stencil_layouts\"\n' \
		'#define VK_KHR_SHADER_ATOMIC_INT64_EXTENSION_NAME \"VK_KHR_shader_atomic_int64\"\n' \
		'#define VK_KHR_SHADER_DRAW_PARAMETERS_EXTENSION_NAME \"VK_KHR_shader_draw_parameters\"\n' \
		'#define VK_KHR_SHADER_FLOAT16_INT8_EXTENSION_NAME \"VK_KHR_shader_float16_int8\"\n' \
		'#define VK_KHR_SHADER_SUBGROUP_EXTENDED_TYPES_EXTENSION_NAME \"VK_KHR_shader_subgroup_extended_types\"\n' \
		'#define VK_KHR_TIMELINE_SEMAPHORE_EXTENSION_NAME \"VK_KHR_timeline_semaphore\"\n' \
		'#define VK_KHR_UNIFORM_BUFFER_STANDARD_LAYOUT_EXTENSION_NAME \"VK_KHR_uniform_buffer_standard_layout\"\n' \
		'#define VK_KHR_VARIABLE_POINTERS_EXTENSION_NAME \"VK_KHR_variable_pointers\"\n' \
		'#define VK_KHR_VULKAN_MEMORY_MODEL_EXTENSION_NAME \"VK_KHR_vulkan_memory_model\"\n'
	# construct final list
	defs = []
	for sType, sSuffix in matches:
		structName			= re.sub("[_0-9][a-z]", lambda match: match.group(0).upper(), sType.capitalize()).replace('_', '')
		ptrnStructName		= r'\s*typedef\s+struct\s+(VkPhysicalDevice' + structName + 'Features' + sSuffix.replace('_', '') + ')'
		matchStructName		= re.search(ptrnStructName, src, re.IGNORECASE)
		if matchStructName:
			# handle special cases
			if sType == "EXCLUSIVE_SCISSOR":
				sType = "SCISSOR_EXCLUSIVE"
			elif sType == "ASTC_DECODE":
				sType = "ASTC_DECODE_MODE"
			elif sType == "MAINTENANCE_4":
				sType = "MAINTENANCE4"
			elif sType == "YCBCR_2_PLANE_444_FORMATS":
				sType = "YCBCR_2PLANE_444_FORMATS"
			elif sType in {'VULKAN_1_1', 'VULKAN_1_2', 'VULKAN_1_3'}:
				continue
			elif sType == 'RASTERIZATION_ORDER_ATTACHMENT_ACCESS':
				# skip case that has const pNext pointer
				continue
			# end handling special cases
			ptrnExtensionName	= r'^\s*#define\s+(\w+' + sSuffix + '_' + sType + '_EXTENSION_NAME).+$'
			matchExtensionName	= re.search(ptrnExtensionName, src, re.M)
			if matchExtensionName is None and apiName=='SC':
				matchExtensionName	= re.search(ptrnExtensionName, missingVulkanSCExt, re.M)
			ptrnSpecVersion		= r'^\s*#define\s+(\w+' + sSuffix + '_' + sType + '_SPEC_VERSION).+$'
			matchSpecVersion	= re.search(ptrnSpecVersion, src, re.M)
			defs.append( (sType, '', sSuffix, matchStructName.group(1), \
							matchExtensionName.group(0)	if matchExtensionName	else None,
							matchExtensionName.group(1)	if matchExtensionName	else None,
							matchSpecVersion.group(1)	if matchSpecVersion		else '0') )
	return defs

def generateDevicePropertiesDefs(apiName, src):
	# look for definitions
	ptrnSType	= r'VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_(\w+)_PROPERTIES(\w*)\s*='
	matches		= re.findall(ptrnSType, src, re.M)
	matches		= sorted(matches, key=lambda m: m[0])
	# hardcoded list of core extensions having properties and missing from Vulkan SC
	missingVulkanSCExt = \
		'#define VK_KHR_DEPTH_STENCIL_RESOLVE_EXTENSION_NAME \"VK_KHR_depth_stencil_resolve\"\n' \
		'#define VK_EXT_DESCRIPTOR_INDEXING_EXTENSION_NAME \"VK_EXT_descriptor_indexing\"\n' \
		'#define VK_KHR_DRIVER_PROPERTIES_EXTENSION_NAME \"VK_KHR_driver_properties\"\n' \
		'#define VK_KHR_SHADER_FLOAT_CONTROLS_EXTENSION_NAME \"VK_KHR_shader_float_controls\"\n' \
		'#define VK_KHR_MAINTENANCE3_EXTENSION_NAME \"VK_KHR_maintenance3\"\n' \
		'#define VK_KHR_MULTIVIEW_EXTENSION_NAME   \"VK_KHR_multiview\"\n' \
		'#define VK_EXT_SAMPLER_FILTER_MINMAX_EXTENSION_NAME \"VK_EXT_sampler_filter_minmax\"\n' \
		'#define VK_KHR_TIMELINE_SEMAPHORE_EXTENSION_NAME \"VK_KHR_timeline_semaphore\"\n'
	# construct final list
	defs = []
	for sType, sSuffix in matches:
		# handle special cases
		if sType in {'VULKAN_1_1', 'VULKAN_1_2', 'VULKAN_1_3', 'VULKAN_SC_1_0', 'GROUP', 'MEMORY_BUDGET', 'MEMORY', 'TOOL'}:
			continue
		# there are cases like VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_CORE_PROPERTIES_2_AMD
		# where 2 is after PROPERTIES - to handle this we need to split suffix to two parts
		sVerSuffix = ''
		sExtSuffix = sSuffix
		suffixStart = sSuffix.rfind('_')
		if suffixStart > 0:
			sVerSuffix = sSuffix[:suffixStart]
			sExtSuffix = sSuffix[suffixStart:]
		# handle special case
		if sType == "ID":
			structName	= sType
		else:
			structName	= re.sub("[_0-9][a-z]", lambda match: match.group(0).upper(), sType.capitalize()).replace('_', '')
		ptrnStructName		= r'\s*typedef\s+struct\s+(VkPhysicalDevice' + structName + 'Properties' + sSuffix.replace('_', '') + ')'
		matchStructName		= re.search(ptrnStructName, src, re.M)
		if matchStructName:
			extType = sType
			if extType == "DISCARD_RECTANGLE":
				extType = "DISCARD_RECTANGLES"
			elif extType == "DRIVER":
				extType = "DRIVER_PROPERTIES"
			elif extType == "POINT_CLIPPING":
				extType = "MAINTENANCE_2"
			elif extType == "SHADER_CORE":
				extType = "SHADER_CORE_PROPERTIES"
			elif extType == "DRM":
				extType = "PHYSICAL_DEVICE_DRM"
			if apiName == 'SC':
				if extType == "MAINTENANCE_3":
					extType = "MAINTENANCE3"
				elif extType == "MAINTENANCE_4":
					extType = "MAINTENANCE4"
				elif extType == "POINT_CLIPPING":
					extType = "MAINTENANCE2"
			# end handling special cases
			ptrnExtensionName	= r'^\s*#define\s+(\w+' + sExtSuffix + '_' + extType + sVerSuffix +'[_0-9]*_EXTENSION_NAME).+$'
			matchExtensionName	= re.search(ptrnExtensionName, src, re.M)
			if matchExtensionName is None and apiName=='SC':
				matchExtensionName	= re.search(ptrnExtensionName, missingVulkanSCExt, re.M)
			ptrnSpecVersion		= r'^\s*#define\s+(\w+' + sExtSuffix + '_' + extType + sVerSuffix + '[_0-9]*_SPEC_VERSION).+$'
			matchSpecVersion	= re.search(ptrnSpecVersion, src, re.M)
			defs.append( (sType, sVerSuffix, sExtSuffix, matchStructName.group(1), \
							matchExtensionName.group(0)	if matchExtensionName	else None,
							matchExtensionName.group(1)	if matchExtensionName	else None,
							matchSpecVersion.group	(1)	if matchSpecVersion		else '0') )
	return defs

def writeDeviceFeatures(api, dfDefs, filename):
	# find VkPhysicalDeviceVulkan[1-9][0-9]Features blob structurs
	# and construct dictionary with all of their attributes
	blobMembers = {}
	blobStructs = {}
	blobPattern = re.compile("^VkPhysicalDeviceVulkan([1-9][0-9])Features[0-9]*$")
	for structureType in api.compositeTypes:
		match = blobPattern.match(structureType.name)
		if match:
			allMembers = [member.name for member in structureType.members]
			vkVersion = match.group(1)
			blobMembers[vkVersion] = allMembers[2:]
			blobStructs[vkVersion] = set()
	initFromBlobDefinitions = []
	emptyInitDefinitions = []
	# iterate over all feature structures
	allFeaturesPattern = re.compile("^VkPhysicalDevice\w+Features[1-9]*")
	nonExtFeaturesPattern = re.compile("^VkPhysicalDevice\w+Features[1-9]*$")
	for structureType in api.compositeTypes:
		# skip structures that are not feature structures
		if not allFeaturesPattern.match(structureType.name):
			continue
		# skip structures that were previously identified as blobs
		if blobPattern.match(structureType.name):
			continue
		if structureType.isAlias:
			continue
		# skip sType and pNext and just grab third and next attributes
		structureMembers = structureType.members[2:]
		notPartOfBlob = True
		if nonExtFeaturesPattern.match(structureType.name):
			# check if this member is part of any of the blobs
			for blobName, blobMemberList in blobMembers.items():
				# if just one member is not part of this blob go to the next blob
				# (we asume that all members are part of blob - no need to check all)
				if structureMembers[0].name not in blobMemberList:
					continue
				# add another feature structure name to this blob
				blobStructs[blobName].add(structureType)
				# add specialization for this feature structure
				memberCopying = ""
				for member in structureMembers:
					memberCopying += "\tfeatureType.{0} = allFeaturesBlobs.vk{1}.{0};\n".format(member.name, blobName)
				wholeFunction = \
					"template<> void initFeatureFromBlob<{0}>({0}& featureType, const AllFeaturesBlobs& allFeaturesBlobs)\n" \
					"{{\n" \
					"{1}" \
					"}}".format(structureType.name, memberCopying)
				initFromBlobDefinitions.append(wholeFunction)
				notPartOfBlob = False
				# assuming that all members are part of blob, goto next
				break
		# add empty template definition as on Fedora there are issue with
		# linking using just generic template - all specializations are needed
		if notPartOfBlob:
			emptyFunction = "template<> void initFeatureFromBlob<{0}>({0}&, const AllFeaturesBlobs&) {{}}"
			emptyInitDefinitions.append(emptyFunction.format(structureType.name))
	extensionDefines = []
	makeFeatureDescDefinitions = []
	featureStructWrappers = []
	for idx, (sType, sVerSuffix, sExtSuffix, extStruct, extLine, extName, specVer) in enumerate(dfDefs):
		extensionNameDefinition = extName
		if not extensionNameDefinition:
			extensionNameDefinition = 'DECL{0}_{1}_EXTENSION_NAME'.format((sExtSuffix if sExtSuffix else ''), sType)
		# construct defines with names
		if extLine:
			extensionDefines.append(extLine)
		else:
			extensionDefines.append('#define {0} "not_existent_feature"'.format(extensionNameDefinition))
		# handle special cases
		if sType == "SCISSOR_EXCLUSIVE":
			sType = "EXCLUSIVE_SCISSOR"
		elif sType == "ASTC_DECODE_MODE":
			sType = "ASTC_DECODE"
		elif sType == "MAINTENANCE4":
			sType = "MAINTENANCE_4"
		elif sType == "YCBCR_2PLANE_444_FORMATS":
			sType = "YCBCR_2_PLANE_444_FORMATS"
		# end handling special cases
		# construct makeFeatureDesc template function definitions
		sTypeName = "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_{0}_FEATURES{1}".format(sType, sVerSuffix + sExtSuffix)
		makeFeatureDescDefinitions.append("template<> FeatureDesc makeFeatureDesc<{0}>(void) " \
			"{{ return FeatureDesc{{{1}, {2}, {3}, {4}}}; }}".format(extStruct, sTypeName, extensionNameDefinition, specVer, len(dfDefs)-idx))
		# construct CreateFeatureStruct wrapper block
		featureStructWrappers.append("\t{{ createFeatureStructWrapper<{0}>, {1}, {2} }},".format(extStruct, extensionNameDefinition, specVer))
	# construct function that will check for which vk version structure sType is part of blob
	blobChecker = "deUint32 getBlobFeaturesVersion (VkStructureType sType)\n{\n" \
				  "\tconst std::map<VkStructureType, deUint32> sTypeBlobMap\n" \
				  "\t{\n"
	# iterate over blobs with list of structures
	for blobName in sorted(blobStructs.keys()):
		blobChecker += "\t\t// Vulkan{0}\n".format(blobName)
		# iterate over all feature structures in current blob
		structuresList = list(blobStructs[blobName])
		structuresList = sorted(structuresList, key=lambda s: s.name)
		for structType in structuresList:
			# find definition of this structure in dfDefs
			structName = structType.name
			# handle special cases
			if structName == 'VkPhysicalDeviceShaderDrawParameterFeatures':
				structName = 'VkPhysicalDeviceShaderDrawParametersFeatures'
			# end handling special cases
			structDef = [s for s in dfDefs if s[3] == structName][0]
			sType = structDef[0]
			sSuffix = structDef[1] + structDef[2]
			# handle special cases
			if sType == "SCISSOR_EXCLUSIVE":
				sType = "EXCLUSIVE_SCISSOR"
			elif sType == "MAINTENANCE4":
				sType = "MAINTENANCE_4"
			# end handling special cases
			sTypeName = "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_{0}_FEATURES{1}".format(sType, sSuffix)
			tabs = "\t" * int((88 - len(sTypeName)) / 4)
			blobChecker += "\t\t{{ {0},{1}VK_API_VERSION_{2}_{3} }},\n".format(sTypeName, tabs, blobName[0], blobName[1])
	blobChecker += "\t};\n\n" \
				   "\tauto it = sTypeBlobMap.find(sType);\n" \
				   "\tif(it == sTypeBlobMap.end())\n" \
				   "\t\treturn 0;\n" \
				   "\treturn it->second;\n" \
				   "}\n"
	# combine all definition lists
	stream = [
	'#include "vkDeviceFeatures.hpp"\n',
	'namespace vk\n{']
	stream.extend(extensionDefines)
	stream.append('\n')
	stream.extend(initFromBlobDefinitions)
	stream.append('\n// generic template is not enough for some compilers')
	stream.extend(emptyInitDefinitions)
	stream.append('\n')
	stream.extend(makeFeatureDescDefinitions)
	stream.append('\n')
	stream.append('static const FeatureStructCreationData featureStructCreationArray[]\n{')
	stream.extend(featureStructWrappers)
	stream.append('};\n')
	stream.append(blobChecker)
	stream.append('} // vk\n')
	writeInlFile(filename, INL_HEADER, stream)

def writeDeviceFeatureTest(apiName, api, filename):

	coreFeaturesPattern = re.compile("^VkPhysicalDeviceVulkan([1-9][0-9])Features[0-9]*$")
	featureItems = []
	testFunctions = []
	# iterate over all feature structures
	allFeaturesPattern = re.compile("^VkPhysicalDevice\w+Features[1-9]*")
	for structureType in api.compositeTypes:
		# skip structures that are not feature structures
		if not allFeaturesPattern.match(structureType.name):
			continue
		# skip alias structures
		if structureType.isAlias:
			continue
		# skip sType and pNext and just grab third and next attributes
		structureMembers = structureType.members[2:]

		items = []
		for member in structureMembers:
			items.append("		FEATURE_ITEM ({0}, {1}),".format(structureType.name, member.name))

		testBlock = """
tcu::TestStatus createDeviceWithUnsupportedFeaturesTest{4} (Context& context)
{{
	const PlatformInterface&				vkp						= context.getPlatformInterface();
	tcu::TestLog&							log						= context.getTestContext().getLog();
	tcu::ResultCollector					resultCollector			(log);
	const CustomInstance					instance				(createCustomInstanceWithExtensions(context, context.getInstanceExtensions(), DE_NULL, true));
	const InstanceDriver&					instanceDriver			(instance.getDriver());
	const VkPhysicalDevice					physicalDevice			= chooseDevice(instanceDriver, instance, context.getTestContext().getCommandLine());
	const deUint32							queueFamilyIndex		= 0;
	const deUint32							queueCount				= 1;
	const float								queuePriority			= 1.0f;
	const DeviceFeatures					deviceFeaturesAll		(context.getInstanceInterface(), context.getUsedApiVersion(), physicalDevice, context.getInstanceExtensions(), context.getDeviceExtensions(), DE_TRUE);
	const VkPhysicalDeviceFeatures2			deviceFeatures2			= deviceFeaturesAll.getCoreFeatures2();
	int										numErrors				= 0;
	bool                                                                    isSubProcess                    = context.getTestContext().getCommandLine().isSubProcess();
{6}

	VkPhysicalDeviceFeatures emptyDeviceFeatures;
	deMemset(&emptyDeviceFeatures, 0, sizeof(emptyDeviceFeatures));

	// Only non-core extensions will be used when creating the device.
	vector<const char*>	coreExtensions;
	getCoreDeviceExtensions(context.getUsedApiVersion(), coreExtensions);
	vector<string> nonCoreExtensions(removeExtensions(context.getDeviceExtensions(), coreExtensions));

	vector<const char*> extensionNames;
	extensionNames.reserve(nonCoreExtensions.size());
	for (const string& extension : nonCoreExtensions)
		extensionNames.push_back(extension.c_str());

	if (const void* featuresStruct = findStructureInChain(const_cast<const void*>(deviceFeatures2.pNext), getStructureType<{0}>()))
	{{
		static const Feature features[] =
		{{
{1}
		}};
		auto* supportedFeatures = reinterpret_cast<const {0}*>(featuresStruct);
		checkFeatures(vkp, instance, instanceDriver, physicalDevice, {2}, features, supportedFeatures, queueFamilyIndex, queueCount, queuePriority, numErrors, resultCollector, {3}, emptyDeviceFeatures, {5});
	}}

	if (numErrors > 0)
		return tcu::TestStatus(resultCollector.getResult(), "Enabling unsupported features didn't return VK_ERROR_FEATURE_NOT_PRESENT.");
	else
		return tcu::TestStatus(resultCollector.getResult(), resultCollector.getMessage());
}}
"""
		additionalParams = ( 'memReservationStatMax, isSubProcess' if apiName == 'SC' else 'isSubProcess' )
		additionalDefs = ( '	VkDeviceObjectReservationCreateInfo memReservationStatMax = context.getResourceInterface()->getStatMax();' if apiName == 'SC' else '')
		featureItems.append(testBlock.format(structureType.name, "\n".join(items), len(items), ("DE_NULL" if coreFeaturesPattern.match(structureType.name) else "&extensionNames"), structureType.name[len('VkPhysicalDevice'):], additionalParams, additionalDefs))

		testFunctions.append("createDeviceWithUnsupportedFeaturesTest" + structureType.name[len('VkPhysicalDevice'):])

	stream = ['']
	stream.extend(featureItems)
	stream.append("""
void addSeparateUnsupportedFeatureTests (tcu::TestCaseGroup* testGroup)
{
""")
	for x in testFunctions:
		stream.append('\taddFunctionCase(testGroup, "' + camelToSnake(x[len('createDeviceWithUnsupportedFeaturesTest'):]) + '", "' + x + '", ' + x + ');')
	stream.append('}\n')

	writeInlFile(filename, INL_HEADER, stream)

def writeDeviceProperties(api, dpDefs, filename):
	# find VkPhysicalDeviceVulkan[1-9][0-9]Features blob structurs
	# and construct dictionary with all of their attributes
	blobMembers = {}
	blobStructs = {}
	blobPattern = re.compile("^VkPhysicalDeviceVulkan([1-9][0-9])Properties[0-9]*$")
	for structureType in api.compositeTypes:
		match = blobPattern.match(structureType.name)
		if match:
			allMembers = [member.name for member in structureType.members]
			vkVersion = match.group(1)
			blobMembers[vkVersion] = allMembers[2:]
			blobStructs[vkVersion] = set()
	initFromBlobDefinitions = []
	emptyInitDefinitions = []
	# iterate over all property structures
	allPropertiesPattern = re.compile("^VkPhysicalDevice\w+Properties[1-9]*")
	nonExtPropertiesPattern = re.compile("^VkPhysicalDevice\w+Properties[1-9]*$")
	for structureType in api.compositeTypes:
		# skip structures that are not property structures
		if not allPropertiesPattern.match(structureType.name):
			continue
		# skip structures that were previously identified as blobs
		if blobPattern.match(structureType.name):
			continue
		if structureType.isAlias:
			continue
		# skip sType and pNext and just grab third and next attributes
		structureMembers = structureType.members[2:]
		notPartOfBlob = True
		if nonExtPropertiesPattern.match(structureType.name):
			# check if this member is part of any of the blobs
			for blobName, blobMemberList in blobMembers.items():
				# if just one member is not part of this blob go to the next blob
				# (we asume that all members are part of blob - no need to check all)
				if structureMembers[0].name not in blobMemberList:
					continue
				# add another property structure name to this blob
				blobStructs[blobName].add(structureType)
				# add specialization for this property structure
				memberCopying = ""
				for member in structureMembers:
					if not member.arraySize:
						# handle special case
						if structureType.name == "VkPhysicalDeviceSubgroupProperties" and "subgroup" not in member.name :
							blobMemberName = "subgroup" + member.name[0].capitalize() + member.name[1:]
							memberCopying += "\tpropertyType.{0} = allPropertiesBlobs.vk{1}.{2};\n".format(member.name, blobName, blobMemberName)
						# end handling special case
						else:
							memberCopying += "\tpropertyType.{0} = allPropertiesBlobs.vk{1}.{0};\n".format(member.name, blobName)
					else:
						memberCopying += "\tmemcpy(propertyType.{0}, allPropertiesBlobs.vk{1}.{0}, sizeof({2}) * {3});\n".format(member.name, blobName, member.type[0], member.arraySize[1:-1])
				wholeFunction = \
					"template<> void initPropertyFromBlob<{0}>({0}& propertyType, const AllPropertiesBlobs& allPropertiesBlobs)\n" \
					"{{\n" \
					"{1}" \
					"}}".format(structureType.name, memberCopying)
				initFromBlobDefinitions.append(wholeFunction)
				notPartOfBlob = False
				# assuming that all members are part of blob, goto next
				break
		# add empty template definition as on Fedora there are issue with
		# linking using just generic template - all specializations are needed
		if notPartOfBlob:
			emptyFunction = "template<> void initPropertyFromBlob<{0}>({0}&, const AllPropertiesBlobs&) {{}}"
			emptyInitDefinitions.append(emptyFunction.format(structureType.name))
	extensionDefines = []
	makePropertyDescDefinitions = []
	propertyStructWrappers = []
	for idx, (sType, sVerSuffix, sExtSuffix, extStruct, extLine, extName, specVer) in enumerate(dpDefs):
		extensionNameDefinition = extName
		if not extensionNameDefinition:
			extensionNameDefinition = 'DECL{0}_{1}_EXTENSION_NAME'.format((sExtSuffix if sExtSuffix else ''), sType)
		# construct defines with names
		if extLine:
			extensionDefines.append(extLine)
		else:
			extensionDefines.append('#define {0} "core_property"'.format(extensionNameDefinition))
		# construct makePropertyDesc template function definitions
		sTypeName = "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_{0}_PROPERTIES{1}".format(sType, sVerSuffix + sExtSuffix)
		makePropertyDescDefinitions.append("template<> PropertyDesc makePropertyDesc<{0}>(void) " \
			"{{ return PropertyDesc{{{1}, {2}, {3}, {4}}}; }}".format(extStruct, sTypeName, extensionNameDefinition, specVer, len(dpDefs)-idx))
		# construct CreateProperty struct wrapper block
		propertyStructWrappers.append("\t{{ createPropertyStructWrapper<{0}>, {1}, {2} }},".format(extStruct, extensionNameDefinition, specVer))
	# construct method that will check if structure sType is part of blob
	blobChecker = "deUint32 getBlobPropertiesVersion (VkStructureType sType)\n{\n" \
				  "\tconst std::map<VkStructureType, deUint32> sTypeBlobMap\n" \
				  "\t{\n"
	# iterate over blobs with list of structures
	for blobName in sorted(blobStructs.keys()):
		blobChecker += "\t\t// Vulkan{0}\n".format(blobName)
		# iterate over all feature structures in current blob
		structuresList = list(blobStructs[blobName])
		structuresList = sorted(structuresList, key=lambda s: s.name)
		for structType in structuresList:
			# find definition of this structure in dpDefs
			structName = structType.name
			structDef = [s for s in dpDefs if s[3] == structName][0]
			sType = structDef[0]
			sSuffix = structDef[1] + structDef[2]
			sTypeName = "VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_{0}_PROPERTIES{1}".format(sType, sSuffix)
			tabs = "\t" * int((76 - len(sTypeName)) / 4)
			blobChecker += "\t\t{{ {0},{1}VK_API_VERSION_{2}_{3} }},\n".format(sTypeName, tabs, blobName[0], blobName[1])
	blobChecker += "\t};\n\n" \
				   "\tauto it = sTypeBlobMap.find(sType);\n" \
				   "\tif(it == sTypeBlobMap.end())\n" \
				   "\t\treturn 0;\n" \
				   "\treturn it->second;\n" \
				   "}\n"
	# combine all definition lists
	stream = [
	'#include "vkDeviceProperties.hpp"\n',
	'namespace vk\n{']
	stream.extend(extensionDefines)
	stream.append('\n')
	stream.extend(initFromBlobDefinitions)
	stream.append('\n// generic template is not enough for some compilers')
	stream.extend(emptyInitDefinitions)
	stream.append('\n')
	stream.extend(makePropertyDescDefinitions)
	stream.append('\n')
	stream.append('static const PropertyStructCreationData propertyStructCreationArray[] =\n{')
	stream.extend(propertyStructWrappers)
	stream.append('};\n')
	stream.append(blobChecker)
	stream.append('} // vk\n')
	writeInlFile(filename, INL_HEADER, stream)

def genericDeviceFeaturesWriter(dfDefs, pattern, filename):
	stream = []
	for _, _, _, extStruct, _, _, _ in dfDefs:
		nameSubStr = extStruct.replace("VkPhysicalDevice", "").replace("KHR", "").replace("NV", "")
		stream.append(pattern.format(extStruct, nameSubStr))
	writeInlFile(filename, INL_HEADER, indentLines(stream))

def writeDeviceFeaturesDefaultDeviceDefs(dfDefs, filename):
	pattern = "const {0}&\tget{1}\t(void) const {{ return m_deviceFeatures.getFeatureType<{0}>();\t}}"
	genericDeviceFeaturesWriter(dfDefs, pattern, filename)

def writeDeviceFeaturesContextDecl(dfDefs, filename):
	pattern = "const vk::{0}&\tget{1}\t(void) const;"
	genericDeviceFeaturesWriter(dfDefs, pattern, filename)

def writeDeviceFeaturesContextDefs(dfDefs, filename):
	pattern = "const vk::{0}&\tContext::get{1}\t(void) const {{ return m_device->get{1}();\t}}"
	genericDeviceFeaturesWriter(dfDefs, pattern, filename)

def genericDevicePropertiesWriter(dfDefs, pattern, filename):
	stream = []
	for _, _, _, extStruct, _, _, _ in dfDefs:
		nameSubStr = extStruct.replace("VkPhysicalDevice", "").replace("KHR", "").replace("NV", "")
		if extStruct == "VkPhysicalDeviceRayTracingPropertiesNV":
			nameSubStr += "NV"
		stream.append(pattern.format(extStruct, nameSubStr))
	writeInlFile(filename, INL_HEADER, indentLines(stream))

def writeDevicePropertiesDefaultDeviceDefs(dfDefs, filename):
	pattern = "const {0}&\tget{1}\t(void) const {{ return m_deviceProperties.getPropertyType<{0}>();\t}}"
	genericDevicePropertiesWriter(dfDefs, pattern, filename)

def writeDevicePropertiesContextDecl(dfDefs, filename):
	pattern = "const vk::{0}&\tget{1}\t(void) const;"
	genericDevicePropertiesWriter(dfDefs, pattern, filename)

def writeDevicePropertiesContextDefs(dfDefs, filename):
	pattern = "const vk::{0}&\tContext::get{1}\t(void) const {{ return m_device->get{1}();\t}}"
	genericDevicePropertiesWriter(dfDefs, pattern, filename)

def writeMandatoryFeatures(api, filename):

	def structInAPI(name):
		for c in api.compositeTypes:
			if c.name == name:
				return True
		return False
	stream = []

	dictStructs = {}
	dictData = []
	for _, data in api.additionalExtensionData:
		if 'mandatory_features' not in data.keys():
			continue
		# sort to have same results for py2 and py3
		listStructFeatures = sorted(data['mandatory_features'].items(), key=lambda tup: tup[0])
		for structure, featuresList in listStructFeatures:
			for featureData in featuresList:
				# allow for featureless VKSC only extensions
				if not 'features' in featureData.keys() or 'requirements' not in featureData.keys():
					continue
				requirements = featureData['requirements']

				mandatory_variant = ''
				try:
					mandatory_variant = featureData['mandatory_variant']
				except KeyError:
					mandatory_variant = ''

				dictData.append( [ structure, featureData['features'], requirements, mandatory_variant] )

				if structure == 'VkPhysicalDeviceFeatures':
					continue
				# if structure is not in dict construct name of variable and add is as a first item
				if (structure not in dictStructs):
					dictStructs[structure] = ([structure[2:3].lower() + structure[3:]], mandatory_variant)
				# add first requirement if it is unique
				if requirements and (requirements[0] not in dictStructs[structure][0]):
					dictStructs[structure][0].append(requirements[0])


	stream.extend(['bool checkMandatoryFeatures(const vkt::Context& context)\n{',
				   '\tif (!context.isInstanceFunctionalitySupported("VK_KHR_get_physical_device_properties2"))',
				   '\t\tTCU_THROW(NotSupportedError, "Extension VK_KHR_get_physical_device_properties2 is not present");',
				   '',
				   '\tVkPhysicalDevice\t\t\t\t\tphysicalDevice\t\t= context.getPhysicalDevice();',
				   '\tconst InstanceInterface&\t\t\tvki\t\t\t\t\t= context.getInstanceInterface();',
				   '\tconst vector<VkExtensionProperties>\tdeviceExtensions\t= enumerateDeviceExtensionProperties(vki, physicalDevice, DE_NULL);',
				   '',
				   '\ttcu::TestLog& log = context.getTestContext().getLog();',
				   '\tvk::VkPhysicalDeviceFeatures2 coreFeatures;',
				   '\tdeMemset(&coreFeatures, 0, sizeof(coreFeatures));',
				   '\tcoreFeatures.sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2;',
				   '\tvoid** nextPtr = &coreFeatures.pNext;',
				   ''])

	listStruct = sorted(dictStructs.items(), key=lambda tup: tup[0]) # sort to have same results for py2 and py3
	apiStruct	= list( filter(lambda x : structInAPI(x[0]), listStruct)) # remove items not defined in current A

	for k, v in apiStruct:
		metaCondition = ''
		if v[1] != '':
			metaCondition = metaCondition + ' || defined(CTS_USES_' + v[1][0].upper() + ')'
			stream.extend(['#if ' + metaCondition[4:]])
		if (v[0][1].startswith("ApiVersion")):
			cond = '\tif (context.contextSupports(vk::' + v[0][1] + '))'
		else:
			cond = '\tif (vk::isDeviceExtensionSupported(context.getUsedApiVersion(), context.getDeviceExtensions(), "' + v[0][1] + '"))'
		stream.extend(['\tvk::' + k + ' ' + v[0][0]+ ';',
					'\tdeMemset(&' + v[0][0] + ', 0, sizeof(' + v[0][0] + '));',
					''])
		reqs = v[0][1:]
		if len(reqs) > 0 :
			cond = 'if ( '
			for i, req in enumerate(reqs) :
				if (req.startswith("ApiVersion")):
					cond = cond + 'context.contextSupports(vk::' + req + ')'
				else:
					cond = cond + 'isExtensionSupported(deviceExtensions, RequiredExtension("' + req + '"))'
				if i+1 < len(reqs) :
					cond = cond + ' || '
			cond = cond + ' )'
			stream.append('\t' + cond)
		stream.extend(['\t{',
					   '\t\t' + v[0][0] + '.sType = getStructureType<' + k + '>();',
					   '\t\t*nextPtr = &' + v[0][0] + ';',
					   '\t\tnextPtr  = &' + v[0][0] + '.pNext;',
					   '\t}'])
		if metaCondition != '':
			stream.extend(['#endif // ' + metaCondition[4:],
						  ''])
		else:
			stream.extend([''])
	stream.extend(['\tcontext.getInstanceInterface().getPhysicalDeviceFeatures2(context.getPhysicalDevice(), &coreFeatures);',
				   '\tbool result = true;',
				   ''])


	for v in dictData:
		if not structInAPI(v[0]): # remove items not defined in current API ( important for Vulkan SC )
			continue
		structType = v[0];
		structName = 'coreFeatures.features';
		metaCondition = ''
		if len(v) == 4 and v[3] != '':
			# for x in v[3].split('_'):
			metaCondition = metaCondition + ' || defined(CTS_USES_' + v[3][0].upper() + ')'
			stream.extend(['#if ' + metaCondition[4:]])
		if v[0] != 'VkPhysicalDeviceFeatures' :
			structName = dictStructs[v[0]][0][0]
		if len(v[2]) > 0 :
			condition = 'if ( '
			for i, req in enumerate(v[2]) :
				if (req.startswith("ApiVersion")):
					condition = condition + 'context.contextSupports(vk::' + req + ')'
				elif '.' in req:
					condition = condition + req
				else:
					condition = condition + 'isExtensionSupported(deviceExtensions, RequiredExtension("' + req + '"))'
				if i+1 < len(v[2]) :
					condition = condition + ' && '
			condition = condition + ' )'
			stream.append('\t' + condition)
		stream.append('\t{')
		# Don't need to support an AND case since that would just be another line in the .txt
		if len(v[1]) == 1:
			stream.append('\t\tif ( ' + structName + '.' + v[1][0] + ' == VK_FALSE )')
		else:
			condition = 'if ( '
			for i, feature in enumerate(v[1]):
				if i != 0:
					condition = condition + ' && '
				condition = condition + '( ' + structName + '.' + feature + ' == VK_FALSE )'
			condition = condition + ' )'
			stream.append('\t\t' + condition)
		featureSet = " or ".join(v[1])
		stream.extend(['\t\t{',
					   '\t\t\tlog << tcu::TestLog::Message << "Mandatory feature ' + featureSet + ' not supported" << tcu::TestLog::EndMessage;',
					   '\t\t\tresult = false;',
					   '\t\t}',
					   '\t}'])
		if metaCondition != '':
			stream.extend(['#endif // ' + metaCondition[4:],
						  ''])
		else:
			stream.extend([''])

	stream.append('\treturn result;')
	stream.append('}\n')
	writeInlFile(filename, INL_HEADER, stream)

def writeExtensionList(apiName, api, filename, extensionType):
	extensionList = []
	for extensionName, data in api.additionalExtensionData:
		# make sure extension name starts with VK_KHR
		if not extensionName.startswith('VK_KHR'):
			continue
		# make sure that this extension was registered
		if 'register_extension' not in data.keys():
			continue
		# make sure extension is intended for the vulkan variant
		is_sc_only = False

		if apiName != 'SC':
			if 'mandatory_features' in data.keys():
				for structure, listStruct in data['mandatory_features'].items():
					for featureData in listStruct:
						mandatory_variant = ''
						try:
							mandatory_variant = featureData['mandatory_variant']
						except KeyError:
							mandatory_variant = ''
						# VKSC only
						if 'vulkansc' in mandatory_variant:
							is_sc_only = True
		if is_sc_only:
			continue

		# make sure extension has proper type
		if extensionType == data['register_extension']['type']:
			extensionList.append(extensionName)
	extensionList.sort()
	# write list of all found extensions
	stream = []
	stream.append('static const char* s_allowed{0}KhrExtensions[] =\n{{'.format(extensionType.title()))
	for n in extensionList:
		stream.append('\t"' + n + '",')
	stream.append('};\n')
	writeInlFile(filename, INL_HEADER, stream)

def parseCmdLineArgs():
	parser = argparse.ArgumentParser(description = "Generate Vulkan INL files",
									 formatter_class=argparse.ArgumentDefaultsHelpFormatter)
	parser.add_argument("-a",
						"--api",
						dest="api",
						default="",
						help="Choose between Vulkan and Vulkan SC")
	parser.add_argument("-o",
						"--outdir",
						dest="outdir",
						default="",
						help="Choose output directory")
	return parser.parse_args()

def preprocessTopInclude(src, dir):
	pattern = r'#include\s+"([^\n]+)"'
	while True:
		inc = re.search(pattern, src)
		if inc is None:
			return src
		incFileName = inc.string[inc.start(1):inc.end(1)]
		patternIncNamed = r'#include\s+"' + incFileName + '"'
		incBody = readFile(os.path.join(dir, incFileName)) if incFileName != 'vk_platform.h' else ''
		incBodySanitized = re.sub(pattern, '', incBody)
		bodyEndSanitized = re.sub(patternIncNamed, '', src[inc.end(0):])
		src = src[0:inc.start(0)] + incBodySanitized + bodyEndSanitized
	return src

if __name__ == "__main__":
	args = parseCmdLineArgs()

	outputPath = DEFAULT_OUTPUT_DIR[args.api]
	# if argument was specified it is interpreted as a path to which .inl files will be written
	if args.outdir != '':
		outputPath = args.outdir

	files = []
	src = ""
	if args.api == '':

		# Generate vulkan headers from vk.xml
		currentDir			= os.getcwd()
		pythonExecutable	= sys.executable or "python"
		os.chdir(os.path.join(VULKAN_HEADERS_INCLUDE_DIR, "..", "xml"))
		vkTargets = [
			"vulkan_android.h",
			"vulkan_beta.h",
			"vulkan_core.h",
			"vulkan_fuchsia.h",
			"vulkan_ggp.h",
			"vulkan_ios.h",
			"vulkan_macos.h",
			"vulkan_metal.h",
			"vulkan_vi.h",
			"vulkan_wayland.h",
			"vulkan_win32.h",
			"vulkan_xcb.h",
			"vulkan_xlib.h",
			"vulkan_xlib_xrandr.h",
		]
		for target in vkTargets:
			execute([pythonExecutable, "../scripts/genvk.py", "-o", "../include/vulkan", target])

		videoDir = "../include/vk_video"
		if (not os.path.isdir(videoDir)):
			os.mkdir(videoDir)

		videoTargets = [
			'vulkan_video_codecs_common.h',
			'vulkan_video_codec_h264std.h',
			'vulkan_video_codec_h264std_decode.h',
			'vulkan_video_codec_h264std_encode.h',
			'vulkan_video_codec_h265std.h',
			'vulkan_video_codec_h265std_decode.h',
			'vulkan_video_codec_h265std_encode.h',
		]
		for target in videoTargets:
			execute([pythonExecutable, "../scripts/genvk.py", "-registry", "video.xml", "-o", videoDir, target])

		os.chdir(currentDir)

		# Read all .h files and make sure vulkan_core.h is first out of vulkan files
		vkTargets.remove("vulkan_core.h")
		vkTargets.sort()
		vkTargets.insert(0, "vulkan_core.h")
		vkFilesWithCatalog = [os.path.join("vulkan", f) for f in vkTargets]

		for file in vkFilesWithCatalog:
			src += preprocessTopInclude(readFile(os.path.join(VULKAN_HEADERS_INCLUDE_DIR,file)), VULKAN_HEADERS_INCLUDE_DIR)
	elif args.api=='SC':
		# At the moment vulkan-docs does not have vulkan_sc_core.h. We will use a file from external/vulkancts/scripts/src
		src = preprocessTopInclude(readFile(os.path.join(os.path.dirname(__file__), "src", "vulkan_sc_core.h" )), VULKAN_HEADERS_INCLUDE_DIR)

	src = re.sub('\s*//[^\n]*', '', src)
	src = re.sub('\n\n', '\n', src)

	api				= parseAPI(src)

	platformFuncs	= [Function.TYPE_PLATFORM]
	instanceFuncs	= [Function.TYPE_INSTANCE]
	deviceFuncs		= [Function.TYPE_DEVICE]

	dfd										= generateDeviceFeaturesDefs(args.api, src)
	writeDeviceFeatures						(api, dfd, os.path.join(outputPath, "vkDeviceFeatures.inl"))
	writeDeviceFeaturesDefaultDeviceDefs	(dfd, os.path.join(outputPath, "vkDeviceFeaturesForDefaultDeviceDefs.inl"))
	writeDeviceFeaturesContextDecl			(dfd, os.path.join(outputPath, "vkDeviceFeaturesForContextDecl.inl"))
	writeDeviceFeaturesContextDefs			(dfd, os.path.join(outputPath, "vkDeviceFeaturesForContextDefs.inl"))
	writeDeviceFeatureTest					(args.api, api, os.path.join(outputPath, "vkDeviceFeatureTest.inl"))

	dpd										= generateDevicePropertiesDefs(args.api, src)
	writeDeviceProperties					(api, dpd, os.path.join(outputPath, "vkDeviceProperties.inl"))

	writeDevicePropertiesDefaultDeviceDefs	(dpd, os.path.join(outputPath, "vkDevicePropertiesForDefaultDeviceDefs.inl"))
	writeDevicePropertiesContextDecl		(dpd, os.path.join(outputPath, "vkDevicePropertiesForContextDecl.inl"))
	writeDevicePropertiesContextDefs		(dpd, os.path.join(outputPath, "vkDevicePropertiesForContextDefs.inl"))

	writeHandleType							(api, os.path.join(outputPath, "vkHandleType.inl"))
	writeBasicTypes							(args.api, api, os.path.join(outputPath, "vkBasicTypes.inl"))
	writeCompositeTypes						(api, os.path.join(outputPath, "vkStructTypes.inl"))
	writeInterfaceDecl						(api, os.path.join(outputPath, "vkVirtualPlatformInterface.inl"),		platformFuncs,	False)
	writeInterfaceDecl						(api, os.path.join(outputPath, "vkVirtualInstanceInterface.inl"),		instanceFuncs,	False)
	writeInterfaceDecl						(api, os.path.join(outputPath, "vkVirtualDeviceInterface.inl"),			deviceFuncs,	False)
	writeInterfaceDecl						(api, os.path.join(outputPath, "vkConcretePlatformInterface.inl"),		platformFuncs,	True)
	writeInterfaceDecl						(api, os.path.join(outputPath, "vkConcreteInstanceInterface.inl"),		instanceFuncs,	True)
	writeInterfaceDecl						(api, os.path.join(outputPath, "vkConcreteDeviceInterface.inl"),		deviceFuncs,	True)
	writeFunctionPtrTypes					(api, os.path.join(outputPath, "vkFunctionPointerTypes.inl"))
	writeFunctionPointers					(api, os.path.join(outputPath, "vkPlatformFunctionPointers.inl"),		platformFuncs)
	writeFunctionPointers					(api, os.path.join(outputPath, "vkInstanceFunctionPointers.inl"),		instanceFuncs)
	writeFunctionPointers					(api, os.path.join(outputPath, "vkDeviceFunctionPointers.inl"),			deviceFuncs)
	writeInitFunctionPointers				(api, os.path.join(outputPath, "vkInitPlatformFunctionPointers.inl"),	platformFuncs,	lambda f: f.name != "vkGetInstanceProcAddr")
	writeInitFunctionPointers				(api, os.path.join(outputPath, "vkInitInstanceFunctionPointers.inl"),	instanceFuncs)
	writeInitFunctionPointers				(api, os.path.join(outputPath, "vkInitDeviceFunctionPointers.inl"),		deviceFuncs)
	writeFuncPtrInterfaceImpl				(api, os.path.join(outputPath, "vkPlatformDriverImpl.inl"),				platformFuncs,	"PlatformDriver")
	writeFuncPtrInterfaceImpl				(api, os.path.join(outputPath, "vkInstanceDriverImpl.inl"),				instanceFuncs,	"InstanceDriver")
	writeFuncPtrInterfaceImpl				(api, os.path.join(outputPath, "vkDeviceDriverImpl.inl"),				deviceFuncs,	"DeviceDriver")
	if args.api=='SC':
		writeFuncPtrInterfaceSCImpl			(api, os.path.join(outputPath, "vkDeviceDriverSCImpl.inl"),				deviceFuncs,	"DeviceDriverSC")
	writeStrUtilProto						(api, os.path.join(outputPath, "vkStrUtil.inl"))
	writeStrUtilImpl						(api, os.path.join(outputPath, "vkStrUtilImpl.inl"))
	writeRefUtilProto						(api, os.path.join(outputPath, "vkRefUtil.inl"))
	writeRefUtilImpl						(api, os.path.join(outputPath, "vkRefUtilImpl.inl"))
	writeStructTraitsImpl					(api, os.path.join(outputPath, "vkGetStructureTypeImpl.inl"))
	writeNullDriverImpl						(api, os.path.join(outputPath, "vkNullDriverImpl.inl"))
	writeTypeUtil							(api, os.path.join(outputPath, "vkTypeUtil.inl"))
	writeSupportedExtensions				(args.api, api, os.path.join(outputPath, "vkSupportedExtensions.inl"))
	writeCoreFunctionalities				(api, os.path.join(outputPath, "vkCoreFunctionalities.inl"))
	writeExtensionFunctions					(api, os.path.join(outputPath, "vkExtensionFunctions.inl"))
	writeDeviceFeatures2					(api, os.path.join(outputPath, "vkDeviceFeatures2.inl"))
	writeMandatoryFeatures					(api, os.path.join(outputPath, "vkMandatoryFeatures.inl"))
	writeExtensionList						(args.api, api, os.path.join(outputPath, "vkInstanceExtensions.inl"),				'instance')
	writeExtensionList						(args.api, api, os.path.join(outputPath, "vkDeviceExtensions.inl"),				'device')
	writeDriverIds							(args.api, os.path.join(outputPath, "vkKnownDriverIds.inl"))
	writeObjTypeImpl						(api, os.path.join(outputPath, "vkObjTypeImpl.inl"))
	# NOTE: when new files are generated then they should also be added to the
	# vk-gl-cts\external\vulkancts\framework\vulkan\CMakeLists.txt outputs list