#!/usr/bin/python3 -i
#
# Copyright (c) 2015-2016 The Khronos Group Inc.
# Copyright (c) 2015-2016 Valve Corporation
# Copyright (c) 2015-2016 LunarG, Inc.
# Copyright (c) 2015-2016 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.
#
# Author: Dustin Graves <dustin@lunarg.com>
# Author: Mark Lobodzinski <mark@lunarg.com>
import os,re,sys,string
import xml.etree.ElementTree as etree
from generator import *
from collections import namedtuple
from vuid_mapping import *
# This is a workaround to use a Python 2.7 and 3.x compatible syntax.
from io import open
# ParameterValidationGeneratorOptions - subclass of GeneratorOptions.
#
# Adds options used by ParameterValidationOutputGenerator object during Parameter validation layer generation.
#
# Additional members
# prefixText - list of strings to prefix generated header with
# (usually a copyright statement + calling convention macros).
# protectFile - True if multiple inclusion protection should be
# generated (based on the filename) around the entire header.
# protectFeature - True if #ifndef..#endif protection should be
# generated around a feature interface in the header file.
# genFuncPointers - True if function pointer typedefs should be
# generated
# protectProto - If conditional protection should be generated
# around prototype declarations, set to either '#ifdef'
# to require opt-in (#ifdef protectProtoStr) or '#ifndef'
# to require opt-out (#ifndef protectProtoStr). Otherwise
# set to None.
# protectProtoStr - #ifdef/#ifndef symbol to use around prototype
# declarations, if protectProto is set
# apicall - string to use for the function declaration prefix,
# such as APICALL on Windows.
# apientry - string to use for the calling convention macro,
# in typedefs, such as APIENTRY.
# apientryp - string to use for the calling convention macro
# in function pointer typedefs, such as APIENTRYP.
# indentFuncProto - True if prototype declarations should put each
# parameter on a separate line
# indentFuncPointer - True if typedefed function pointers should put each
# parameter on a separate line
# alignFuncParam - if nonzero and parameters are being put on a
# separate line, align parameter names at the specified column
class ParameterValidationGeneratorOptions(GeneratorOptions):
def __init__(self,
filename = None,
directory = '.',
apiname = None,
profile = None,
versions = '.*',
emitversions = '.*',
defaultExtensions = None,
addExtensions = None,
removeExtensions = None,
sortProcedure = regSortFeatures,
prefixText = "",
genFuncPointers = True,
protectFile = True,
protectFeature = True,
protectProto = None,
protectProtoStr = None,
apicall = '',
apientry = '',
apientryp = '',
indentFuncProto = True,
indentFuncPointer = False,
alignFuncParam = 0):
GeneratorOptions.__init__(self, filename, directory, apiname, profile,
versions, emitversions, defaultExtensions,
addExtensions, removeExtensions, sortProcedure)
self.prefixText = prefixText
self.genFuncPointers = genFuncPointers
self.protectFile = protectFile
self.protectFeature = protectFeature
self.protectProto = protectProto
self.protectProtoStr = protectProtoStr
self.apicall = apicall
self.apientry = apientry
self.apientryp = apientryp
self.indentFuncProto = indentFuncProto
self.indentFuncPointer = indentFuncPointer
self.alignFuncParam = alignFuncParam
# ParameterValidationOutputGenerator - subclass of OutputGenerator.
# Generates param checker layer code.
#
# ---- methods ----
# ParamCheckerOutputGenerator(errFile, warnFile, diagFile) - args as for
# OutputGenerator. Defines additional internal state.
# ---- methods overriding base class ----
# beginFile(genOpts)
# endFile()
# beginFeature(interface, emit)
# endFeature()
# genType(typeinfo,name)
# genStruct(typeinfo,name)
# genGroup(groupinfo,name)
# genEnum(enuminfo, name)
# genCmd(cmdinfo)
class ParameterValidationOutputGenerator(OutputGenerator):
"""Generate Parameter Validation code based on XML element attributes"""
# This is an ordered list of sections in the header file.
ALL_SECTIONS = ['command']
def __init__(self,
errFile = sys.stderr,
warnFile = sys.stderr,
diagFile = sys.stdout):
OutputGenerator.__init__(self, errFile, warnFile, diagFile)
self.INDENT_SPACES = 4
self.intercepts = []
self.declarations = []
# Commands to ignore
self.blacklist = [
'vkGetInstanceProcAddr',
'vkGetDeviceProcAddr',
'vkEnumerateInstanceLayerProperties',
'vkEnumerateInstanceExtensionsProperties',
'vkEnumerateDeviceLayerProperties',
'vkEnumerateDeviceExtensionsProperties',
'vkCreateDebugReportCallbackKHR',
'vkDestroyDebugReportCallbackKHR',
'vkEnumerateInstanceLayerProperties',
'vkEnumerateInstanceExtensionProperties',
'vkEnumerateDeviceLayerProperties',
'vkCmdDebugMarkerEndEXT',
'vkEnumerateDeviceExtensionProperties',
]
self.validate_only = [
'vkCreateInstance',
'vkDestroyInstance',
'vkCreateDevice',
'vkDestroyDevice',
'vkCreateQueryPool',
'vkCreateDebugReportCallbackEXT',
'vkDestroyDebugReportCallbackEXT',
'vkCreateCommandPool',
'vkCreateRenderPass',
'vkDestroyRenderPass',
]
# Structure fields to ignore
self.structMemberBlacklist = { 'VkWriteDescriptorSet' : ['dstSet'] }
# Validation conditions for some special case struct members that are conditionally validated
self.structMemberValidationConditions = { 'VkPipelineColorBlendStateCreateInfo' : { 'logicOp' : '{}logicOpEnable == VK_TRUE' } }
# Header version
self.headerVersion = None
# Internal state - accumulators for different inner block text
self.validation = [] # Text comprising the main per-api parameter validation routines
self.structNames = [] # List of Vulkan struct typenames
self.stypes = [] # Values from the VkStructureType enumeration
self.structTypes = dict() # Map of Vulkan struct typename to required VkStructureType
self.handleTypes = set() # Set of handle type names
self.commands = [] # List of CommandData records for all Vulkan commands
self.structMembers = [] # List of StructMemberData records for all Vulkan structs
self.validatedStructs = dict() # Map of structs type names to generated validation code for that struct type
self.enumRanges = dict() # Map of enum name to BEGIN/END range values
self.enumValueLists = '' # String containing enumerated type map definitions
self.func_pointers = '' # String containing function pointers for manual PV functions
self.typedefs = '' # String containing function pointer typedefs
self.flags = set() # Map of flags typenames
self.flagBits = dict() # Map of flag bits typename to list of values
self.newFlags = set() # Map of flags typenames /defined in the current feature/
self.required_extensions = dict() # Dictionary of required extensions for each item in the current extension
self.extension_type = '' # Type of active feature (extension), device or instance
self.extension_names = dict() # Dictionary of extension names to extension name defines
self.valid_vuids = set() # Set of all valid VUIDs
# Named tuples to store struct and command data
self.StructType = namedtuple('StructType', ['name', 'value'])
self.CommandParam = namedtuple('CommandParam', ['type', 'name', 'ispointer', 'isstaticarray', 'isbool', 'israngedenum',
'isconst', 'isoptional', 'iscount', 'noautovalidity', 'len', 'extstructs',
'condition', 'cdecl'])
self.CommandData = namedtuple('CommandData', ['name', 'params', 'cdecl', 'extension_type', 'result'])
self.StructMemberData = namedtuple('StructMemberData', ['name', 'members'])
self.vuid_file = None
# Cover cases where file is built from scripts directory, Lin/Win, or Android build structure
# Set cwd to the script directory to more easily locate the header.
previous_dir = os.getcwd()
os.chdir(os.path.dirname(sys.argv[0]))
vuid_filename_locations = [
'./vk_validation_error_messages.h',
'../layers/vk_validation_error_messages.h',
'../../layers/vk_validation_error_messages.h',
'../../../layers/vk_validation_error_messages.h',
]
for vuid_filename in vuid_filename_locations:
if os.path.isfile(vuid_filename):
self.vuid_file = open(vuid_filename, "r", encoding="utf8")
break
if self.vuid_file == None:
print("Error: Could not find vk_validation_error_messages.h")
sys.exit(1)
os.chdir(previous_dir)
#
# Generate Copyright comment block for file
def GenerateCopyright(self):
copyright = '/* *** THIS FILE IS GENERATED - DO NOT EDIT! ***\n'
copyright += ' * See parameter_validation_generator.py for modifications\n'
copyright += ' *\n'
copyright += ' * Copyright (c) 2015-2017 The Khronos Group Inc.\n'
copyright += ' * Copyright (c) 2015-2017 LunarG, Inc.\n'
copyright += ' * Copyright (C) 2015-2017 Google Inc.\n'
copyright += ' *\n'
copyright += ' * Licensed under the Apache License, Version 2.0 (the "License");\n'
copyright += ' * you may not use this file except in compliance with the License.\n'
copyright += ' * Copyright (c) 2015-2017 Valve Corporation\n'
copyright += ' * You may obtain a copy of the License at\n'
copyright += ' *\n'
copyright += ' * http://www.apache.org/licenses/LICENSE-2.0\n'
copyright += ' *\n'
copyright += ' * Unless required by applicable law or agreed to in writing, software\n'
copyright += ' * distributed under the License is distributed on an "AS IS" BASIS,\n'
copyright += ' * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n'
copyright += ' * See the License for the specific language governing permissions and\n'
copyright += ' * limitations under the License.\n'
copyright += ' *\n'
copyright += ' * Author: Mark Lobodzinski <mark@LunarG.com>\n'
copyright += ' */\n\n'
return copyright
#
# Increases the global indent variable
def incIndent(self, indent):
inc = ' ' * self.INDENT_SPACES
if indent:
return indent + inc
return inc
#
# Decreases the global indent variable
def decIndent(self, indent):
if indent and (len(indent) > self.INDENT_SPACES):
return indent[:-self.INDENT_SPACES]
return ''
#
# Convert decimal number to 8 digit hexadecimal lower-case representation
def IdToHex(self, dec_num):
if dec_num > 4294967295:
print ("ERROR: Decimal # %d can't be represented in 8 hex digits" % (dec_num))
sys.exit(1)
hex_num = hex(dec_num)
return hex_num[2:].zfill(8)
#
# Called at file creation time
def beginFile(self, genOpts):
OutputGenerator.beginFile(self, genOpts)
# C-specific
#
# Open vk_validation_error_messages.h file to verify computed VUIDs
for line in self.vuid_file:
# Grab hex number from enum definition
vuid_list = line.split('0x')
# If this is a valid enumeration line, remove trailing comma and CR
if len(vuid_list) == 2:
vuid_num = vuid_list[1][:-2]
# Make sure this is a good hex number before adding to set
if len(vuid_num) == 8 and all(c in string.hexdigits for c in vuid_num):
self.valid_vuids.add(vuid_num)
#
# User-supplied prefix text, if any (list of strings)
s = self.GenerateCopyright()
write(s, file=self.outFile)
#
# Headers
write('#include <string>', file=self.outFile)
self.newline()
write('#include "vk_loader_platform.h"', file=self.outFile)
write('#include "vulkan/vulkan.h"', file=self.outFile)
write('#include "vk_layer_extension_utils.h"', file=self.outFile)
write('#include "parameter_validation.h"', file=self.outFile)
#
# Macros
self.newline()
write('#ifndef UNUSED_PARAMETER', file=self.outFile)
write('#define UNUSED_PARAMETER(x) (void)(x)', file=self.outFile)
write('#endif // UNUSED_PARAMETER', file=self.outFile)
#
# Namespace
self.newline()
write('namespace parameter_validation {', file = self.outFile)
self.newline()
write('extern std::mutex global_lock;', file = self.outFile)
write('extern std::unordered_map<void *, layer_data *> layer_data_map;', file = self.outFile)
write('extern std::unordered_map<void *, instance_layer_data *> instance_layer_data_map;', file = self.outFile)
self.newline()
#
# FuncPtrMap
self.func_pointers += 'std::unordered_map<std::string, void *> custom_functions = {\n'
#
# Called at end-time for final content output
def endFile(self):
# C-specific
self.newline()
write(self.enumValueLists, file=self.outFile)
self.newline()
write(self.typedefs, file=self.outFile)
self.newline()
self.func_pointers += '};\n'
write(self.func_pointers, file=self.outFile)
self.newline()
ext_template = 'template <typename T>\n'
ext_template += 'bool OutputExtensionError(const T *layer_data, const std::string &api_name, const std::string &extension_name) {\n'
ext_template += ' return log_msg(layer_data->report_data, VK_DEBUG_REPORT_ERROR_BIT_EXT, VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT, 0, __LINE__,\n'
ext_template += ' EXTENSION_NOT_ENABLED, LayerName, "Attemped to call %s() but its required extension %s has not been enabled\\n",\n'
ext_template += ' api_name.c_str(), extension_name.c_str());\n'
ext_template += '}\n'
write(ext_template, file=self.outFile)
self.newline()
commands_text = '\n'.join(self.validation)
write(commands_text, file=self.outFile)
self.newline()
# Output declarations and record intercepted procedures
write('// Declarations', file=self.outFile)
write('\n'.join(self.declarations), file=self.outFile)
write('// Map of all APIs to be intercepted by this layer', file=self.outFile)
write('const std::unordered_map<std::string, void*> name_to_funcptr_map = {', file=self.outFile)
write('\n'.join(self.intercepts), file=self.outFile)
write('};\n', file=self.outFile)
self.newline()
# Namespace
write('} // namespace parameter_validation', file = self.outFile)
# Finish processing in superclass
OutputGenerator.endFile(self)
#
# Processing at beginning of each feature or extension
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# C-specific
# Accumulate includes, defines, types, enums, function pointer typedefs, end function prototypes separately for this
# feature. They're only printed in endFeature().
self.headerVersion = None
self.structNames = []
self.stypes = []
self.structTypes = dict()
self.commands = []
self.structMembers = []
self.newFlags = set()
# Get base list of extension dependencies for all items in this extension
base_required_extensions = []
if self.featureName != "VK_VERSION_1_0":
# Save Name Define to get correct enable name later
nameElem = interface[0][1]
name = nameElem.get('name')
self.extension_names[self.featureName] = name
# This extension is the first dependency for this command
base_required_extensions.append(self.featureName)
# Add any defined extension dependencies to the base dependency list for this extension
requires = interface.get('requires')
if requires is not None:
base_required_extensions.extend(requires.split(','))
# Build dictionary of extension dependencies for each item in this extension
self.required_extensions = dict()
for require_element in interface.findall('require'):
# Copy base extension dependency list
required_extensions = list(base_required_extensions)
# Add any additional extension dependencies specified in this require block
additional_extensions = require_element.get('extension')
if additional_extensions:
required_extensions.extend(additional_extensions.split(','))
# Save full extension list for all named items
for element in require_element.findall('*[@name]'):
self.required_extensions[element.get('name')] = required_extensions
# And note if this is an Instance or Device extension
self.extension_type = interface.get('type')
#
# Called at the end of each extension (feature)
def endFeature(self):
# C-specific
# Actually write the interface to the output file.
if (self.emit):
# If type declarations are needed by other features based on this one, it may be necessary to suppress the ExtraProtect,
# or move it below the 'for section...' loop.
ifdef = ''
if (self.featureExtraProtect != None):
ifdef = '#ifdef %s\n' % self.featureExtraProtect
self.validation.append(ifdef)
# Generate the struct member checking code from the captured data
self.processStructMemberData()
# Generate the command parameter checking code from the captured data
self.processCmdData()
# Write the declaration for the HeaderVersion
if self.headerVersion:
write('const uint32_t GeneratedHeaderVersion = {};'.format(self.headerVersion), file=self.outFile)
self.newline()
# Write the declarations for the VkFlags values combining all flag bits
for flag in sorted(self.newFlags):
flagBits = flag.replace('Flags', 'FlagBits')
if flagBits in self.flagBits:
bits = self.flagBits[flagBits]
decl = 'const {} All{} = {}'.format(flag, flagBits, bits[0])
for bit in bits[1:]:
decl += '|' + bit
decl += ';'
write(decl, file=self.outFile)
endif = '\n'
if (self.featureExtraProtect != None):
endif = '#endif // %s\n' % self.featureExtraProtect
self.validation.append(endif)
# Finish processing in superclass
OutputGenerator.endFeature(self)
#
# Type generation
def genType(self, typeinfo, name):
OutputGenerator.genType(self, typeinfo, name)
typeElem = typeinfo.elem
# If the type is a struct type, traverse the imbedded <member> tags generating a structure. Otherwise, emit the tag text.
category = typeElem.get('category')
if (category == 'struct' or category == 'union'):
self.structNames.append(name)
self.genStruct(typeinfo, name)
elif (category == 'handle'):
self.handleTypes.add(name)
elif (category == 'bitmask'):
self.flags.add(name)
self.newFlags.add(name)
elif (category == 'define'):
if name == 'VK_HEADER_VERSION':
nameElem = typeElem.find('name')
self.headerVersion = noneStr(nameElem.tail).strip()
#
# Struct parameter check generation.
# This is a special case of the <type> tag where the contents are interpreted as a set of <member> tags instead of freeform C
# type declarations. The <member> tags are just like <param> tags - they are a declaration of a struct or union member.
# Only simple member declarations are supported (no nested structs etc.)
def genStruct(self, typeinfo, typeName):
OutputGenerator.genStruct(self, typeinfo, typeName)
conditions = self.structMemberValidationConditions[typeName] if typeName in self.structMemberValidationConditions else None
members = typeinfo.elem.findall('.//member')
#
# Iterate over members once to get length parameters for arrays
lens = set()
for member in members:
len = self.getLen(member)
if len:
lens.add(len)
#
# Generate member info
membersInfo = []
for member in members:
# Get the member's type and name
info = self.getTypeNameTuple(member)
type = info[0]
name = info[1]
stypeValue = ''
cdecl = self.makeCParamDecl(member, 0)
# Process VkStructureType
if type == 'VkStructureType':
# Extract the required struct type value from the comments embedded in the original text defining the
# 'typeinfo' element
rawXml = etree.tostring(typeinfo.elem).decode('ascii')
result = re.search(r'VK_STRUCTURE_TYPE_\w+', rawXml)
if result:
value = result.group(0)
else:
value = self.genVkStructureType(typeName)
# Store the required type value
self.structTypes[typeName] = self.StructType(name=name, value=value)
#
# Store pointer/array/string info -- Check for parameter name in lens set
iscount = False
if name in lens:
iscount = True
# The pNext members are not tagged as optional, but are treated as optional for parameter NULL checks. Static array
# members are also treated as optional to skip NULL pointer validation, as they won't be NULL.
isstaticarray = self.paramIsStaticArray(member)
isoptional = False
if self.paramIsOptional(member) or (name == 'pNext') or (isstaticarray):
isoptional = True
# Determine if value should be ignored by code generation.
noautovalidity = False
if (member.attrib.get('noautovalidity') is not None) or ((typeName in self.structMemberBlacklist) and (name in self.structMemberBlacklist[typeName])):
noautovalidity = True
membersInfo.append(self.CommandParam(type=type, name=name,
ispointer=self.paramIsPointer(member),
isstaticarray=isstaticarray,
isbool=True if type == 'VkBool32' else False,
israngedenum=True if type in self.enumRanges else False,
isconst=True if 'const' in cdecl else False,
isoptional=isoptional,
iscount=iscount,
noautovalidity=noautovalidity,
len=self.getLen(member),
extstructs=self.registry.validextensionstructs[typeName] if name == 'pNext' else None,
condition=conditions[name] if conditions and name in conditions else None,
cdecl=cdecl))
self.structMembers.append(self.StructMemberData(name=typeName, members=membersInfo))
#
# Capture group (e.g. C "enum" type) info to be used for param check code generation.
# These are concatenated together with other types.
def genGroup(self, groupinfo, groupName):
OutputGenerator.genGroup(self, groupinfo, groupName)
groupElem = groupinfo.elem
# Store the sType values
if groupName == 'VkStructureType':
for elem in groupElem.findall('enum'):
self.stypes.append(elem.get('name'))
elif 'FlagBits' in groupName:
bits = []
for elem in groupElem.findall('enum'):
bits.append(elem.get('name'))
if bits:
self.flagBits[groupName] = bits
else:
# Determine if begin/end ranges are needed (we don't do this for VkStructureType, which has a more finely grained check)
expandName = re.sub(r'([0-9a-z_])([A-Z0-9][^A-Z0-9]?)',r'\1_\2',groupName).upper()
expandPrefix = expandName
expandSuffix = ''
expandSuffixMatch = re.search(r'[A-Z][A-Z]+$',groupName)
if expandSuffixMatch:
expandSuffix = '_' + expandSuffixMatch.group()
# Strip off the suffix from the prefix
expandPrefix = expandName.rsplit(expandSuffix, 1)[0]
isEnum = ('FLAG_BITS' not in expandPrefix)
if isEnum:
self.enumRanges[groupName] = (expandPrefix + '_BEGIN_RANGE' + expandSuffix, expandPrefix + '_END_RANGE' + expandSuffix)
# Create definition for a list containing valid enum values for this enumerated type
enum_entry = 'const std::vector<%s> All%sEnums = {' % (groupName, groupName)
for enum in groupElem:
name = enum.get('name')
if name is not None and enum.get('supported') != 'disabled':
enum_entry += '%s, ' % name
enum_entry += '};\n'
self.enumValueLists += enum_entry
#
# Capture command parameter info to be used for param check code generation.
def genCmd(self, cmdinfo, name):
OutputGenerator.genCmd(self, cmdinfo, name)
decls = self.makeCDecls(cmdinfo.elem)
typedef = decls[1]
typedef = typedef.split(')',1)[1]
if name not in self.blacklist:
if (self.featureExtraProtect != None):
self.declarations += [ '#ifdef %s' % self.featureExtraProtect ]
self.intercepts += [ '#ifdef %s' % self.featureExtraProtect ]
if (name not in self.validate_only):
self.func_pointers += '#ifdef %s\n' % self.featureExtraProtect
self.typedefs += '#ifdef %s\n' % self.featureExtraProtect
if (name not in self.validate_only):
self.typedefs += 'typedef bool (*PFN_manual_%s)%s\n' % (name, typedef)
self.func_pointers += ' {"%s", nullptr},\n' % name
self.intercepts += [ ' {"%s", (void*)%s},' % (name,name) ]
# Strip off 'vk' from API name
self.declarations += [ '%s' % decls[0].replace("VKAPI_CALL vk", "VKAPI_CALL ") ]
if (self.featureExtraProtect != None):
self.intercepts += [ '#endif' ]
self.declarations += [ '#endif' ]
if (name not in self.validate_only):
self.func_pointers += '#endif\n'
self.typedefs += '#endif\n'
if name not in self.blacklist:
params = cmdinfo.elem.findall('param')
# Get list of array lengths
lens = set()
for param in params:
len = self.getLen(param)
if len:
lens.add(len)
# Get param info
paramsInfo = []
for param in params:
paramInfo = self.getTypeNameTuple(param)
cdecl = self.makeCParamDecl(param, 0)
# Check for parameter name in lens set
iscount = False
if paramInfo[1] in lens:
iscount = True
paramsInfo.append(self.CommandParam(type=paramInfo[0], name=paramInfo[1],
ispointer=self.paramIsPointer(param),
isstaticarray=self.paramIsStaticArray(param),
isbool=True if paramInfo[0] == 'VkBool32' else False,
israngedenum=True if paramInfo[0] in self.enumRanges else False,
isconst=True if 'const' in cdecl else False,
isoptional=self.paramIsOptional(param),
iscount=iscount,
noautovalidity=True if param.attrib.get('noautovalidity') is not None else False,
len=self.getLen(param),
extstructs=None,
condition=None,
cdecl=cdecl))
# Save return value information, if any
result_type = ''
resultinfo = cmdinfo.elem.find('proto/type')
if (resultinfo != None and resultinfo.text != 'void'):
result_type = resultinfo.text
self.commands.append(self.CommandData(name=name, params=paramsInfo, cdecl=self.makeCDecls(cmdinfo.elem)[0], extension_type=self.extension_type, result=result_type))
#
# Check if the parameter passed in is a pointer
def paramIsPointer(self, param):
ispointer = 0
paramtype = param.find('type')
if (paramtype.tail is not None) and ('*' in paramtype.tail):
ispointer = paramtype.tail.count('*')
elif paramtype.text[:4] == 'PFN_':
# Treat function pointer typedefs as a pointer to a single value
ispointer = 1
return ispointer
#
# Check if the parameter passed in is a static array
def paramIsStaticArray(self, param):
isstaticarray = 0
paramname = param.find('name')
if (paramname.tail is not None) and ('[' in paramname.tail):
isstaticarray = paramname.tail.count('[')
return isstaticarray
#
# Check if the parameter passed in is optional
# Returns a list of Boolean values for comma separated len attributes (len='false,true')
def paramIsOptional(self, param):
# See if the handle is optional
isoptional = False
# Simple, if it's optional, return true
optString = param.attrib.get('optional')
if optString:
if optString == 'true':
isoptional = True
elif ',' in optString:
opts = []
for opt in optString.split(','):
val = opt.strip()
if val == 'true':
opts.append(True)
elif val == 'false':
opts.append(False)
else:
print('Unrecognized len attribute value',val)
isoptional = opts
return isoptional
#
# Check if the handle passed in is optional
# Uses the same logic as ValidityOutputGenerator.isHandleOptional
def isHandleOptional(self, param, lenParam):
# Simple, if it's optional, return true
if param.isoptional:
return True
# If no validity is being generated, it usually means that validity is complex and not absolute, so let's say yes.
if param.noautovalidity:
return True
# If the parameter is an array and we haven't already returned, find out if any of the len parameters are optional
if lenParam and lenParam.isoptional:
return True
return False
#
# Generate a VkStructureType based on a structure typename
def genVkStructureType(self, typename):
# Add underscore between lowercase then uppercase
value = re.sub('([a-z0-9])([A-Z])', r'\1_\2', typename)
value = value.replace('D3_D12', 'D3D12')
value = value.replace('Device_IDProp', 'Device_ID_Prop')
# Change to uppercase
value = value.upper()
# Add STRUCTURE_TYPE_
return re.sub('VK_', 'VK_STRUCTURE_TYPE_', value)
#
# Get the cached VkStructureType value for the specified struct typename, or generate a VkStructureType
# value assuming the struct is defined by a different feature
def getStructType(self, typename):
value = None
if typename in self.structTypes:
value = self.structTypes[typename].value
else:
value = self.genVkStructureType(typename)
self.logMsg('diag', 'ParameterValidation: Generating {} for {} structure type that was not defined by the current feature'.format(value, typename))
return value
#
# Retrieve the value of the len tag
def getLen(self, param):
result = None
len = param.attrib.get('len')
if len and len != 'null-terminated':
# For string arrays, 'len' can look like 'count,null-terminated', indicating that we have a null terminated array of
# strings. We strip the null-terminated from the 'len' field and only return the parameter specifying the string count
if 'null-terminated' in len:
result = len.split(',')[0]
else:
result = len
result = str(result).replace('::', '->')
return result
#
# Retrieve the type and name for a parameter
def getTypeNameTuple(self, param):
type = ''
name = ''
for elem in param:
if elem.tag == 'type':
type = noneStr(elem.text)
elif elem.tag == 'name':
name = noneStr(elem.text)
return (type, name)
#
# Find a named parameter in a parameter list
def getParamByName(self, params, name):
for param in params:
if param.name == name:
return param
return None
#
# Extract length values from latexmath. Currently an inflexible solution that looks for specific
# patterns that are found in vk.xml. Will need to be updated when new patterns are introduced.
def parseLateXMath(self, source):
name = 'ERROR'
decoratedName = 'ERROR'
if 'mathit' in source:
# Matches expressions similar to 'latexmath:[\lceil{\mathit{rasterizationSamples} \over 32}\rceil]'
match = re.match(r'latexmath\s*\:\s*\[\s*\\l(\w+)\s*\{\s*\\mathit\s*\{\s*(\w+)\s*\}\s*\\over\s*(\d+)\s*\}\s*\\r(\w+)\s*\]', source)
if not match or match.group(1) != match.group(4):
raise 'Unrecognized latexmath expression'
name = match.group(2)
decoratedName = '{}({}/{})'.format(*match.group(1, 2, 3))
else:
# Matches expressions similar to 'latexmath : [dataSize \over 4]'
match = re.match(r'latexmath\s*\:\s*\[\s*(\w+)\s*\\over\s*(\d+)\s*\]', source)
name = match.group(1)
decoratedName = '{}/{}'.format(*match.group(1, 2))
return name, decoratedName
#
# Get the length paramater record for the specified parameter name
def getLenParam(self, params, name):
lenParam = None
if name:
if '->' in name:
# The count is obtained by dereferencing a member of a struct parameter
lenParam = self.CommandParam(name=name, iscount=True, ispointer=False, isbool=False, israngedenum=False, isconst=False,
isstaticarray=None, isoptional=False, type=None, noautovalidity=False, len=None, extstructs=None,
condition=None, cdecl=None)
elif 'latexmath' in name:
lenName, decoratedName = self.parseLateXMath(name)
lenParam = self.getParamByName(params, lenName)
else:
lenParam = self.getParamByName(params, name)
return lenParam
#
# Convert a vulkan.h command declaration into a parameter_validation.h definition
def getCmdDef(self, cmd):
# Strip the trailing ';' and split into individual lines
lines = cmd.cdecl[:-1].split('\n')
cmd_hdr = '\n'.join(lines)
return cmd_hdr
#
# Generate the code to check for a NULL dereference before calling the
# validation function
def genCheckedLengthCall(self, name, exprs):
count = name.count('->')
if count:
checkedExpr = []
localIndent = ''
elements = name.split('->')
# Open the if expression blocks
for i in range(0, count):
checkedExpr.append(localIndent + 'if ({} != NULL) {{\n'.format('->'.join(elements[0:i+1])))
localIndent = self.incIndent(localIndent)
# Add the validation expression
for expr in exprs:
checkedExpr.append(localIndent + expr)
# Close the if blocks
for i in range(0, count):
localIndent = self.decIndent(localIndent)
checkedExpr.append(localIndent + '}\n')
return [checkedExpr]
# No if statements were required
return exprs
#
# Generate code to check for a specific condition before executing validation code
def genConditionalCall(self, prefix, condition, exprs):
checkedExpr = []
localIndent = ''
formattedCondition = condition.format(prefix)
checkedExpr.append(localIndent + 'if ({})\n'.format(formattedCondition))
checkedExpr.append(localIndent + '{\n')
localIndent = self.incIndent(localIndent)
for expr in exprs:
checkedExpr.append(localIndent + expr)
localIndent = self.decIndent(localIndent)
checkedExpr.append(localIndent + '}\n')
return [checkedExpr]
#
# Get VUID identifier from implicit VUID tag
def GetVuid(self, vuid_string):
if '->' in vuid_string:
return "VALIDATION_ERROR_UNDEFINED"
vuid_num = self.IdToHex(convertVUID(vuid_string))
if vuid_num in self.valid_vuids:
vuid = "VALIDATION_ERROR_%s" % vuid_num
else:
vuid = "VALIDATION_ERROR_UNDEFINED"
return vuid
#
# Generate the sType check string
def makeStructTypeCheck(self, prefix, value, lenValue, valueRequired, lenValueRequired, lenPtrRequired, funcPrintName, lenPrintName, valuePrintName, postProcSpec, struct_type_name):
checkExpr = []
stype = self.structTypes[value.type]
if lenValue:
vuid_name = struct_type_name if struct_type_name is not None else funcPrintName
vuid = self.GetVuid("VUID-%s-%s-parameter" % (vuid_name, value.name))
# This is an array with a pointer to a count value
if lenValue.ispointer:
# When the length parameter is a pointer, there is an extra Boolean parameter in the function call to indicate if it is required
checkExpr.append('skip |= validate_struct_type_array(local_data->report_data, "{}", {ppp}"{ldn}"{pps}, {ppp}"{dn}"{pps}, "{sv}", {pf}{ln}, {pf}{vn}, {sv}, {}, {}, {}, {});\n'.format(
funcPrintName, lenPtrRequired, lenValueRequired, valueRequired, vuid, ln=lenValue.name, ldn=lenPrintName, dn=valuePrintName, vn=value.name, sv=stype.value, pf=prefix, **postProcSpec))
# This is an array with an integer count value
else:
checkExpr.append('skip |= validate_struct_type_array(local_data->report_data, "{}", {ppp}"{ldn}"{pps}, {ppp}"{dn}"{pps}, "{sv}", {pf}{ln}, {pf}{vn}, {sv}, {}, {}, {});\n'.format(
funcPrintName, lenValueRequired, valueRequired, vuid, ln=lenValue.name, ldn=lenPrintName, dn=valuePrintName, vn=value.name, sv=stype.value, pf=prefix, **postProcSpec))
# This is an individual struct
else:
vuid = self.GetVuid("VUID-%s-sType-sType" % value.type)
checkExpr.append('skip |= validate_struct_type(local_data->report_data, "{}", {ppp}"{}"{pps}, "{sv}", {}{vn}, {sv}, {}, {});\n'.format(
funcPrintName, valuePrintName, prefix, valueRequired, vuid, vn=value.name, sv=stype.value, vt=value.type, **postProcSpec))
return checkExpr
#
# Generate the handle check string
def makeHandleCheck(self, prefix, value, lenValue, valueRequired, lenValueRequired, funcPrintName, lenPrintName, valuePrintName, postProcSpec):
checkExpr = []
if lenValue:
if lenValue.ispointer:
# This is assumed to be an output array with a pointer to a count value
raise('Unsupported parameter validation case: Output handle array elements are not NULL checked')
else:
# This is an array with an integer count value
checkExpr.append('skip |= validate_handle_array(local_data->report_data, "{}", {ppp}"{ldn}"{pps}, {ppp}"{dn}"{pps}, {pf}{ln}, {pf}{vn}, {}, {});\n'.format(
funcPrintName, lenValueRequired, valueRequired, ln=lenValue.name, ldn=lenPrintName, dn=valuePrintName, vn=value.name, pf=prefix, **postProcSpec))
else:
# This is assumed to be an output handle pointer
raise('Unsupported parameter validation case: Output handles are not NULL checked')
return checkExpr
#
# Generate check string for an array of VkFlags values
def makeFlagsArrayCheck(self, prefix, value, lenValue, valueRequired, lenValueRequired, funcPrintName, lenPrintName, valuePrintName, postProcSpec):
checkExpr = []
flagBitsName = value.type.replace('Flags', 'FlagBits')
if not flagBitsName in self.flagBits:
raise('Unsupported parameter validation case: array of reserved VkFlags')
else:
allFlags = 'All' + flagBitsName
checkExpr.append('skip |= validate_flags_array(local_data->report_data, "{}", {ppp}"{}"{pps}, {ppp}"{}"{pps}, "{}", {}, {pf}{}, {pf}{}, {}, {});\n'.format(funcPrintName, lenPrintName, valuePrintName, flagBitsName, allFlags, lenValue.name, value.name, lenValueRequired, valueRequired, pf=prefix, **postProcSpec))
return checkExpr
#
# Generate pNext check string
def makeStructNextCheck(self, prefix, value, funcPrintName, valuePrintName, postProcSpec, struct_type_name):
checkExpr = []
# Generate an array of acceptable VkStructureType values for pNext
extStructCount = 0
extStructVar = 'NULL'
extStructNames = 'NULL'
vuid = self.GetVuid("VUID-%s-pNext-pNext" % struct_type_name)
if value.extstructs:
extStructVar = 'allowed_structs_{}'.format(struct_type_name)
extStructCount = 'ARRAY_SIZE({})'.format(extStructVar)
extStructNames = '"' + ', '.join(value.extstructs) + '"'
checkExpr.append('const VkStructureType {}[] = {{ {} }};\n'.format(extStructVar, ', '.join([self.getStructType(s) for s in value.extstructs])))
checkExpr.append('skip |= validate_struct_pnext(local_data->report_data, "{}", {ppp}"{}"{pps}, {}, {}{}, {}, {}, GeneratedHeaderVersion, {});\n'.format(
funcPrintName, valuePrintName, extStructNames, prefix, value.name, extStructCount, extStructVar, vuid, **postProcSpec))
return checkExpr
#
# Generate the pointer check string
def makePointerCheck(self, prefix, value, lenValue, valueRequired, lenValueRequired, lenPtrRequired, funcPrintName, lenPrintName, valuePrintName, postProcSpec, struct_type_name):
checkExpr = []
vuid_tag_name = struct_type_name if struct_type_name is not None else funcPrintName
if lenValue:
count_required_vuid = self.GetVuid("VUID-%s-%s-arraylength" % (vuid_tag_name, lenValue.name))
array_required_vuid = self.GetVuid("VUID-%s-%s-parameter" % (vuid_tag_name, value.name))
# This is an array with a pointer to a count value
if lenValue.ispointer:
# If count and array parameters are optional, there will be no validation
if valueRequired == 'true' or lenPtrRequired == 'true' or lenValueRequired == 'true':
# When the length parameter is a pointer, there is an extra Boolean parameter in the function call to indicate if it is required
checkExpr.append('skip |= validate_array(local_data->report_data, "{}", {ppp}"{ldn}"{pps}, {ppp}"{dn}"{pps}, {pf}{ln}, {pf}{vn}, {}, {}, {}, {}, {});\n'.format(
funcPrintName, lenPtrRequired, lenValueRequired, valueRequired, count_required_vuid, array_required_vuid, ln=lenValue.name, ldn=lenPrintName, dn=valuePrintName, vn=value.name, pf=prefix, **postProcSpec))
# This is an array with an integer count value
else:
# If count and array parameters are optional, there will be no validation
if valueRequired == 'true' or lenValueRequired == 'true':
if value.type != 'char':
checkExpr.append('skip |= validate_array(local_data->report_data, "{}", {ppp}"{ldn}"{pps}, {ppp}"{dn}"{pps}, {pf}{ln}, {pf}{vn}, {}, {}, {}, {});\n'.format(
funcPrintName, lenValueRequired, valueRequired, count_required_vuid, array_required_vuid, ln=lenValue.name, ldn=lenPrintName, dn=valuePrintName, vn=value.name, pf=prefix, **postProcSpec))
else:
# Arrays of strings receive special processing
checkExpr.append('skip |= validate_string_array(local_data->report_data, "{}", {ppp}"{ldn}"{pps}, {ppp}"{dn}"{pps}, {pf}{ln}, {pf}{vn}, {}, {}, {}, {});\n'.format(
funcPrintName, lenValueRequired, valueRequired, count_required_vuid, array_required_vuid, ln=lenValue.name, ldn=lenPrintName, dn=valuePrintName, vn=value.name, pf=prefix, **postProcSpec))
if checkExpr:
if lenValue and ('->' in lenValue.name):
# Add checks to ensure the validation call does not dereference a NULL pointer to obtain the count
checkExpr = self.genCheckedLengthCall(lenValue.name, checkExpr)
# This is an individual struct that is not allowed to be NULL
elif not value.isoptional:
# Function pointers need a reinterpret_cast to void*
ptr_required_vuid = self.GetVuid("VUID-%s-%s-parameter" % (vuid_tag_name, value.name))
if value.type[:4] == 'PFN_':
allocator_dict = {'pfnAllocation': '002004f0',
'pfnReallocation': '002004f2',
'pfnFree': '002004f4',
'pfnInternalAllocation': '002004f6'
}
vuid = allocator_dict.get(value.name)
if vuid is not None:
ptr_required_vuid = 'VALIDATION_ERROR_%s' % vuid
checkExpr.append('skip |= validate_required_pointer(local_data->report_data, "{}", {ppp}"{}"{pps}, reinterpret_cast<const void*>({}{}), {});\n'.format(funcPrintName, valuePrintName, prefix, value.name, ptr_required_vuid, **postProcSpec))
else:
checkExpr.append('skip |= validate_required_pointer(local_data->report_data, "{}", {ppp}"{}"{pps}, {}{}, {});\n'.format(funcPrintName, valuePrintName, prefix, value.name, ptr_required_vuid, **postProcSpec))
return checkExpr
#
# Process struct member validation code, performing name suibstitution if required
def processStructMemberCode(self, line, funcName, memberNamePrefix, memberDisplayNamePrefix, postProcSpec):
# Build format specifier list
kwargs = {}
if '{postProcPrefix}' in line:
# If we have a tuple that includes a format string and format parameters, need to use ParameterName class
if type(memberDisplayNamePrefix) is tuple:
kwargs['postProcPrefix'] = 'ParameterName('
else:
kwargs['postProcPrefix'] = postProcSpec['ppp']
if '{postProcSuffix}' in line:
# If we have a tuple that includes a format string and format parameters, need to use ParameterName class
if type(memberDisplayNamePrefix) is tuple:
kwargs['postProcSuffix'] = ', ParameterName::IndexVector{{ {}{} }})'.format(postProcSpec['ppi'], memberDisplayNamePrefix[1])
else:
kwargs['postProcSuffix'] = postProcSpec['pps']
if '{postProcInsert}' in line:
# If we have a tuple that includes a format string and format parameters, need to use ParameterName class
if type(memberDisplayNamePrefix) is tuple:
kwargs['postProcInsert'] = '{}{}, '.format(postProcSpec['ppi'], memberDisplayNamePrefix[1])
else:
kwargs['postProcInsert'] = postProcSpec['ppi']
if '{funcName}' in line:
kwargs['funcName'] = funcName
if '{valuePrefix}' in line:
kwargs['valuePrefix'] = memberNamePrefix
if '{displayNamePrefix}' in line:
# Check for a tuple that includes a format string and format parameters to be used with the ParameterName class
if type(memberDisplayNamePrefix) is tuple:
kwargs['displayNamePrefix'] = memberDisplayNamePrefix[0]
else:
kwargs['displayNamePrefix'] = memberDisplayNamePrefix
if kwargs:
# Need to escape the C++ curly braces
if 'IndexVector' in line:
line = line.replace('IndexVector{ ', 'IndexVector{{ ')
line = line.replace(' }),', ' }}),')
return line.format(**kwargs)
return line
#
# Process struct validation code for inclusion in function or parent struct validation code
def expandStructCode(self, lines, funcName, memberNamePrefix, memberDisplayNamePrefix, indent, output, postProcSpec):
for line in lines:
if output:
output[-1] += '\n'
if type(line) is list:
for sub in line:
output.append(self.processStructMemberCode(indent + sub, funcName, memberNamePrefix, memberDisplayNamePrefix, postProcSpec))
else:
output.append(self.processStructMemberCode(indent + line, funcName, memberNamePrefix, memberDisplayNamePrefix, postProcSpec))
return output
#
# Process struct pointer/array validation code, perfoeming name substitution if required
def expandStructPointerCode(self, prefix, value, lenValue, funcName, valueDisplayName, postProcSpec):
expr = []
expr.append('if ({}{} != NULL)\n'.format(prefix, value.name))
expr.append('{')
indent = self.incIndent(None)
if lenValue:
# Need to process all elements in the array
indexName = lenValue.name.replace('Count', 'Index')
expr[-1] += '\n'
if lenValue.ispointer:
# If the length value is a pointer, de-reference it for the count.
expr.append(indent + 'for (uint32_t {iname} = 0; {iname} < *{}{}; ++{iname})\n'.format(prefix, lenValue.name, iname=indexName))
else:
expr.append(indent + 'for (uint32_t {iname} = 0; {iname} < {}{}; ++{iname})\n'.format(prefix, lenValue.name, iname=indexName))
expr.append(indent + '{')
indent = self.incIndent(indent)
# Prefix for value name to display in error message
if value.ispointer == 2:
memberNamePrefix = '{}{}[{}]->'.format(prefix, value.name, indexName)
memberDisplayNamePrefix = ('{}[%i]->'.format(valueDisplayName), indexName)
else:
memberNamePrefix = '{}{}[{}].'.format(prefix, value.name, indexName)
memberDisplayNamePrefix = ('{}[%i].'.format(valueDisplayName), indexName)
else:
memberNamePrefix = '{}{}->'.format(prefix, value.name)
memberDisplayNamePrefix = '{}->'.format(valueDisplayName)
# Expand the struct validation lines
expr = self.expandStructCode(self.validatedStructs[value.type], funcName, memberNamePrefix, memberDisplayNamePrefix, indent, expr, postProcSpec)
if lenValue:
# Close if and for scopes
indent = self.decIndent(indent)
expr.append(indent + '}\n')
expr.append('}\n')
return expr
#
# Generate the parameter checking code
def genFuncBody(self, funcName, values, valuePrefix, displayNamePrefix, structTypeName):
lines = [] # Generated lines of code
unused = [] # Unused variable names
for value in values:
usedLines = []
lenParam = None
#
# Prefix and suffix for post processing of parameter names for struct members. Arrays of structures need special processing to include the array index in the full parameter name.
postProcSpec = {}
postProcSpec['ppp'] = '' if not structTypeName else '{postProcPrefix}'
postProcSpec['pps'] = '' if not structTypeName else '{postProcSuffix}'
postProcSpec['ppi'] = '' if not structTypeName else '{postProcInsert}'
#
# Generate the full name of the value, which will be printed in the error message, by adding the variable prefix to the value name
valueDisplayName = '{}{}'.format(displayNamePrefix, value.name)
#
# Check for NULL pointers, ignore the inout count parameters that
# will be validated with their associated array
if (value.ispointer or value.isstaticarray) and not value.iscount:
# Parameters for function argument generation
req = 'true' # Paramerter cannot be NULL
cpReq = 'true' # Count pointer cannot be NULL
cvReq = 'true' # Count value cannot be 0
lenDisplayName = None # Name of length parameter to print with validation messages; parameter name with prefix applied
# Generate required/optional parameter strings for the pointer and count values
if value.isoptional:
req = 'false'
if value.len:
# The parameter is an array with an explicit count parameter
lenParam = self.getLenParam(values, value.len)
lenDisplayName = '{}{}'.format(displayNamePrefix, lenParam.name)
if lenParam.ispointer:
# Count parameters that are pointers are inout
if type(lenParam.isoptional) is list:
if lenParam.isoptional[0]:
cpReq = 'false'
if lenParam.isoptional[1]:
cvReq = 'false'
else:
if lenParam.isoptional:
cpReq = 'false'
else:
if lenParam.isoptional:
cvReq = 'false'
#
# The parameter will not be processes when tagged as 'noautovalidity'
# For the pointer to struct case, the struct pointer will not be validated, but any
# members not tagged as 'noatuvalidity' will be validated
if value.noautovalidity:
# Log a diagnostic message when validation cannot be automatically generated and must be implemented manually
self.logMsg('diag', 'ParameterValidation: No validation for {} {}'.format(structTypeName if structTypeName else funcName, value.name))
else:
# If this is a pointer to a struct with an sType field, verify the type
if value.type in self.structTypes:
usedLines += self.makeStructTypeCheck(valuePrefix, value, lenParam, req, cvReq, cpReq, funcName, lenDisplayName, valueDisplayName, postProcSpec, structTypeName)
# If this is an input handle array that is not allowed to contain NULL handles, verify that none of the handles are VK_NULL_HANDLE
elif value.type in self.handleTypes and value.isconst and not self.isHandleOptional(value, lenParam):
usedLines += self.makeHandleCheck(valuePrefix, value, lenParam, req, cvReq, funcName, lenDisplayName, valueDisplayName, postProcSpec)
elif value.type in self.flags and value.isconst:
usedLines += self.makeFlagsArrayCheck(valuePrefix, value, lenParam, req, cvReq, funcName, lenDisplayName, valueDisplayName, postProcSpec)
elif value.isbool and value.isconst:
usedLines.append('skip |= validate_bool32_array(local_data->report_data, "{}", {ppp}"{}"{pps}, {ppp}"{}"{pps}, {pf}{}, {pf}{}, {}, {});\n'.format(funcName, lenDisplayName, valueDisplayName, lenParam.name, value.name, cvReq, req, pf=valuePrefix, **postProcSpec))
elif value.israngedenum and value.isconst:
enum_value_list = 'All%sEnums' % value.type
usedLines.append('skip |= validate_ranged_enum_array(local_data->report_data, "{}", {ppp}"{}"{pps}, {ppp}"{}"{pps}, "{}", {}, {pf}{}, {pf}{}, {}, {});\n'.format(funcName, lenDisplayName, valueDisplayName, value.type, enum_value_list, lenParam.name, value.name, cvReq, req, pf=valuePrefix, **postProcSpec))
elif value.name == 'pNext':
# We need to ignore VkDeviceCreateInfo and VkInstanceCreateInfo, as the loader manipulates them in a way that is not documented in vk.xml
if not structTypeName in ['VkDeviceCreateInfo', 'VkInstanceCreateInfo']:
usedLines += self.makeStructNextCheck(valuePrefix, value, funcName, valueDisplayName, postProcSpec, structTypeName)
else:
usedLines += self.makePointerCheck(valuePrefix, value, lenParam, req, cvReq, cpReq, funcName, lenDisplayName, valueDisplayName, postProcSpec, structTypeName)
# If this is a pointer to a struct (input), see if it contains members that need to be checked
if value.type in self.validatedStructs and value.isconst:
usedLines.append(self.expandStructPointerCode(valuePrefix, value, lenParam, funcName, valueDisplayName, postProcSpec))
# Non-pointer types
else:
# The parameter will not be processes when tagged as 'noautovalidity'
# For the struct case, the struct type will not be validated, but any
# members not tagged as 'noatuvalidity' will be validated
if value.noautovalidity:
# Log a diagnostic message when validation cannot be automatically generated and must be implemented manually
self.logMsg('diag', 'ParameterValidation: No validation for {} {}'.format(structTypeName if structTypeName else funcName, value.name))
else:
vuid_name_tag = structTypeName if structTypeName is not None else funcName
if value.type in self.structTypes:
stype = self.structTypes[value.type]
vuid = self.GetVuid("VUID-%s-sType-sType" % value.type)
usedLines.append('skip |= validate_struct_type(local_data->report_data, "{}", {ppp}"{}"{pps}, "{sv}", &({}{vn}), {sv}, false, {});\n'.format(
funcName, valueDisplayName, valuePrefix, vuid, vn=value.name, sv=stype.value, vt=value.type, **postProcSpec))
elif value.type in self.handleTypes:
if not self.isHandleOptional(value, None):
usedLines.append('skip |= validate_required_handle(local_data->report_data, "{}", {ppp}"{}"{pps}, {}{});\n'.format(funcName, valueDisplayName, valuePrefix, value.name, **postProcSpec))
elif value.type in self.flags:
flagBitsName = value.type.replace('Flags', 'FlagBits')
if not flagBitsName in self.flagBits:
vuid = self.GetVuid("VUID-%s-%s-zerobitmask" % (vuid_name_tag, value.name))
usedLines.append('skip |= validate_reserved_flags(local_data->report_data, "{}", {ppp}"{}"{pps}, {pf}{}, {});\n'.format(funcName, valueDisplayName, value.name, vuid, pf=valuePrefix, **postProcSpec))
else:
if value.isoptional:
flagsRequired = 'false'
vuid = self.GetVuid("VUID-%s-%s-parameter" % (vuid_name_tag, value.name))
else:
flagsRequired = 'true'
vuid = self.GetVuid("VUID-%s-%s-requiredbitmask" % (vuid_name_tag, value.name))
allFlagsName = 'All' + flagBitsName
usedLines.append('skip |= validate_flags(local_data->report_data, "{}", {ppp}"{}"{pps}, "{}", {}, {pf}{}, {}, false, {});\n'.format(funcName, valueDisplayName, flagBitsName, allFlagsName, value.name, flagsRequired, vuid, pf=valuePrefix, **postProcSpec))
elif value.type in self.flagBits:
flagsRequired = 'false' if value.isoptional else 'true'
allFlagsName = 'All' + value.type
vuid = self.GetVuid("VUID-%s-%s-parameter" % (vuid_name_tag, value.name))
usedLines.append('skip |= validate_flags(local_data->report_data, "{}", {ppp}"{}"{pps}, "{}", {}, {pf}{}, {}, true, {});\n'.format(funcName, valueDisplayName, value.type, allFlagsName, value.name, flagsRequired, vuid, pf=valuePrefix, **postProcSpec))
elif value.isbool:
usedLines.append('skip |= validate_bool32(local_data->report_data, "{}", {ppp}"{}"{pps}, {}{});\n'.format(funcName, valueDisplayName, valuePrefix, value.name, **postProcSpec))
elif value.israngedenum:
vuid = self.GetVuid("VUID-%s-%s-parameter" % (vuid_name_tag, value.name))
enum_value_list = 'All%sEnums' % value.type
usedLines.append('skip |= validate_ranged_enum(local_data->report_data, "{}", {ppp}"{}"{pps}, "{}", {}, {}{}, {});\n'.format(funcName, valueDisplayName, value.type, enum_value_list, valuePrefix, value.name, vuid, **postProcSpec))
# If this is a struct, see if it contains members that need to be checked
if value.type in self.validatedStructs:
memberNamePrefix = '{}{}.'.format(valuePrefix, value.name)
memberDisplayNamePrefix = '{}.'.format(valueDisplayName)
usedLines.append(self.expandStructCode(self.validatedStructs[value.type], funcName, memberNamePrefix, memberDisplayNamePrefix, '', [], postProcSpec))
# Append the parameter check to the function body for the current command
if usedLines:
# Apply special conditional checks
if value.condition:
usedLines = self.genConditionalCall(valuePrefix, value.condition, usedLines)
lines += usedLines
elif not value.iscount:
# If no expression was generated for this value, it is unreferenced by the validation function, unless
# it is an array count, which is indirectly referenced for array valiadation.
unused.append(value.name)
if not lines:
lines.append('// No xml-driven validation\n')
return lines, unused
#
# Generate the struct member check code from the captured data
def processStructMemberData(self):
indent = self.incIndent(None)
for struct in self.structMembers:
#
# The string returned by genFuncBody will be nested in an if check for a NULL pointer, so needs its indent incremented
lines, unused = self.genFuncBody('{funcName}', struct.members, '{valuePrefix}', '{displayNamePrefix}', struct.name)
if lines:
self.validatedStructs[struct.name] = lines
#
# Generate the command param check code from the captured data
def processCmdData(self):
indent = self.incIndent(None)
for command in self.commands:
just_validate = False
if command.name in self.validate_only:
just_validate = True
# Skip first parameter if it is a dispatch handle (everything except vkCreateInstance)
startIndex = 0 if command.name == 'vkCreateInstance' else 1
lines, unused = self.genFuncBody(command.name, command.params[startIndex:], '', '', None)
# Cannot validate extension dependencies for device extension APIs having a physical device as their dispatchable object
if (command.name in self.required_extensions) and (self.extension_type != 'device' or command.params[0].type != 'VkPhysicalDevice'):
ext_test = ''
for ext in self.required_extensions[command.name]:
ext_name_define = ''
ext_enable_name = ''
for extension in self.registry.extensions:
if extension.attrib['name'] == ext:
ext_name_define = extension[0][1].get('name')
ext_enable_name = ext_name_define.lower()
ext_enable_name = re.sub('_extension_name', '', ext_enable_name)
break
ext_test = 'if (!local_data->extensions.%s) skip |= OutputExtensionError(local_data, "%s", %s);\n' % (ext_enable_name, command.name, ext_name_define)
lines.insert(0, ext_test)
if lines:
cmdDef = self.getCmdDef(command) + '\n'
# For a validation-only routine, change the function declaration
if just_validate:
jv_def = '// Generated function handles validation only -- API definition is in non-generated source\n'
jv_def += 'extern %s\n\n' % command.cdecl
cmdDef = 'bool parameter_validation_' + cmdDef.split('VKAPI_CALL ',1)[1]
if command.name == 'vkCreateInstance':
cmdDef = cmdDef.replace('(\n', '(\n VkInstance instance,\n')
cmdDef = jv_def + cmdDef
cmdDef += '{\n'
# Add list of commands to skip -- just generate the routine signature and put the manual source in parameter_validation_utils.cpp
if command.params[0].type in ["VkInstance", "VkPhysicalDevice"] or command.name == 'vkCreateInstance':
map_name = 'instance_layer_data_map'
map_type = 'instance_layer_data'
else:
map_name = 'layer_data_map'
map_type = 'layer_data'
instance_param = command.params[0].name
if command.name == 'vkCreateInstance':
instance_param = 'instance'
layer_data = ' %s *local_data = GetLayerDataPtr(get_dispatch_key(%s), %s);\n' % (map_type, instance_param, map_name)
cmdDef += layer_data
cmdDef += '%sbool skip = false;\n' % indent
if not just_validate:
if command.result != '':
if command.result == "VkResult":
cmdDef += indent + '%s result = VK_ERROR_VALIDATION_FAILED_EXT;\n' % command.result
elif command.result == "VkBool32":
cmdDef += indent + '%s result = VK_FALSE;\n' % command.result
else:
raise Exception("Unknown result type: " + command.result)
cmdDef += '%sstd::unique_lock<std::mutex> lock(global_lock);\n' % indent
for line in lines:
cmdDef += '\n'
if type(line) is list:
for sub in line:
cmdDef += indent + sub
else:
cmdDef += indent + line
cmdDef += '\n'
if not just_validate:
# Generate parameter list for manual fcn and down-chain calls
params_text = ''
for param in command.params:
params_text += '%s, ' % param.name
params_text = params_text[:-2]
# Generate call to manual function if its function pointer is non-null
cmdDef += '%sPFN_manual_%s custom_func = (PFN_manual_%s)custom_functions["%s"];\n' % (indent, command.name, command.name, command.name)
cmdDef += '%sif (custom_func != nullptr) {\n' % indent
cmdDef += ' %sskip |= custom_func(%s);\n' % (indent, params_text)
cmdDef += '%s}\n\n' % indent
# Release the validation lock
cmdDef += '%slock.unlock();\n' % indent
# Generate skip check and down-chain call
cmdDef += '%sif (!skip) {\n' % indent
down_chain_call = ' %s' % indent
if command.result != '':
down_chain_call += ' result = '
# Generate down-chain API call
api_call = '%s(%s);' % (command.name, params_text)
down_chain_call += 'local_data->dispatch_table.%s\n' % api_call[2:]
cmdDef += down_chain_call
cmdDef += '%s}\n' % indent
if command.result != '':
cmdDef += '%sreturn result;\n' % indent
else:
cmdDef += '%sreturn skip;\n' % indent
cmdDef += '}\n'
self.validation.append(cmdDef)