|  | #!/usr/bin/python3 -i | 
|  | # | 
|  | # Copyright (c) 2015-2017 The Khronos Group Inc. | 
|  | # Copyright (c) 2015-2017 Valve Corporation | 
|  | # Copyright (c) 2015-2017 LunarG, Inc. | 
|  | # Copyright (c) 2015-2017 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: Mark Lobodzinski <[email protected]> | 
|  | # Author: Tobin Ehlis <[email protected]> | 
|  |  | 
|  | import os,re,sys | 
|  | import xml.etree.ElementTree as etree | 
|  | from generator import * | 
|  | from collections import namedtuple | 
|  |  | 
|  | # | 
|  | # HelperFileOutputGeneratorOptions - subclass of GeneratorOptions. | 
|  | class HelperFileOutputGeneratorOptions(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 = '', | 
|  | alignFuncParam = 0, | 
|  | library_name = '', | 
|  | helper_file_type = ''): | 
|  | 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.alignFuncParam   = alignFuncParam | 
|  | self.library_name     = library_name | 
|  | self.helper_file_type = helper_file_type | 
|  | # | 
|  | # HelperFileOutputGenerator - subclass of OutputGenerator. Outputs Vulkan helper files | 
|  | class HelperFileOutputGenerator(OutputGenerator): | 
|  | """Generate helper file based on XML element attributes""" | 
|  | def __init__(self, | 
|  | errFile = sys.stderr, | 
|  | warnFile = sys.stderr, | 
|  | diagFile = sys.stdout): | 
|  | OutputGenerator.__init__(self, errFile, warnFile, diagFile) | 
|  | # Internal state - accumulators for different inner block text | 
|  | self.enum_output = ''                             # string built up of enum string routines | 
|  | self.struct_size_h_output = ''                    # string built up of struct size header output | 
|  | self.struct_size_c_output = ''                    # string built up of struct size source output | 
|  | # Internal state - accumulators for different inner block text | 
|  | self.structNames = []                             # List of Vulkan struct typenames | 
|  | self.structTypes = dict()                         # Map of Vulkan struct typename to required VkStructureType | 
|  | self.structMembers = []                           # List of StructMemberData records for all Vulkan structs | 
|  | self.object_types = []                            # List of all handle types | 
|  | self.debug_report_object_types = []               # Handy copy of debug_report_object_type enum data | 
|  | self.core_object_types = []                       # Handy copy of core_object_type enum data | 
|  | self.device_extension_info = dict()               # Dict of device extension name defines and ifdef values | 
|  | self.instance_extension_info = dict()             # Dict of instance extension name defines and ifdef values | 
|  |  | 
|  | # Named tuples to store struct and command data | 
|  | self.StructType = namedtuple('StructType', ['name', 'value']) | 
|  | self.CommandParam = namedtuple('CommandParam', ['type', 'name', 'ispointer', 'isstaticarray', 'isconst', 'iscount', 'len', 'extstructs', 'cdecl']) | 
|  | self.StructMemberData = namedtuple('StructMemberData', ['name', 'members', 'ifdef_protect']) | 
|  |  | 
|  | self.custom_construct_params = { | 
|  | # safe_VkGraphicsPipelineCreateInfo needs to know if subpass has color and\or depth\stencil attachments to use its pointers | 
|  | 'VkGraphicsPipelineCreateInfo' : | 
|  | ', const bool uses_color_attachment, const bool uses_depthstencil_attachment', | 
|  | # safe_VkPipelineViewportStateCreateInfo needs to know if viewport and scissor is dynamic to use its pointers | 
|  | 'VkPipelineViewportStateCreateInfo' : | 
|  | ', const bool is_dynamic_viewports, const bool is_dynamic_scissors', | 
|  | } | 
|  | # | 
|  | # Called once at the beginning of each run | 
|  | def beginFile(self, genOpts): | 
|  | OutputGenerator.beginFile(self, genOpts) | 
|  | # User-supplied prefix text, if any (list of strings) | 
|  | self.helper_file_type = genOpts.helper_file_type | 
|  | self.library_name = genOpts.library_name | 
|  | # File Comment | 
|  | file_comment = '// *** THIS FILE IS GENERATED - DO NOT EDIT ***\n' | 
|  | file_comment += '// See helper_file_generator.py for modifications\n' | 
|  | write(file_comment, file=self.outFile) | 
|  | # Copyright Notice | 
|  | copyright = '' | 
|  | copyright += '\n' | 
|  | copyright += '/***************************************************************************\n' | 
|  | copyright += ' *\n' | 
|  | copyright += ' * Copyright (c) 2015-2017 The Khronos Group Inc.\n' | 
|  | copyright += ' * Copyright (c) 2015-2017 Valve Corporation\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 += ' * 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 <[email protected]>\n' | 
|  | copyright += ' * Author: Courtney Goeltzenleuchter <[email protected]>\n' | 
|  | copyright += ' * Author: Tobin Ehlis <[email protected]>\n' | 
|  | copyright += ' * Author: Chris Forbes <[email protected]>\n' | 
|  | copyright += ' * Author: John Zulauf<[email protected]>\n' | 
|  | copyright += ' *\n' | 
|  | copyright += ' ****************************************************************************/\n' | 
|  | write(copyright, file=self.outFile) | 
|  | # | 
|  | # Write generated file content to output file | 
|  | def endFile(self): | 
|  | dest_file = '' | 
|  | dest_file += self.OutputDestFile() | 
|  | # Remove blank lines at EOF | 
|  | if dest_file.endswith('\n'): | 
|  | dest_file = dest_file[:-1] | 
|  | write(dest_file, file=self.outFile); | 
|  | # Finish processing in superclass | 
|  | OutputGenerator.endFile(self) | 
|  | # | 
|  | # Override parent class to be notified of the beginning of an extension | 
|  | def beginFeature(self, interface, emit): | 
|  | # Start processing in superclass | 
|  | OutputGenerator.beginFeature(self, interface, emit) | 
|  | if self.featureName == 'VK_VERSION_1_0': | 
|  | return | 
|  | nameElem = interface[0][1] | 
|  | name = nameElem.get('name') | 
|  | if 'EXTENSION_NAME' not in name: | 
|  | print("Error in vk.xml file -- extension name is not available") | 
|  | if interface.get('type') == 'instance': | 
|  | self.instance_extension_info[name] = self.featureExtraProtect | 
|  | else: | 
|  | self.device_extension_info[name] = self.featureExtraProtect | 
|  | # | 
|  | # Override parent class to be notified of the end of an extension | 
|  | def endFeature(self): | 
|  | # Finish processing in superclass | 
|  | OutputGenerator.endFeature(self) | 
|  | # | 
|  | # Grab group (e.g. C "enum" type) info to output for enum-string conversion helper | 
|  | def genGroup(self, groupinfo, groupName): | 
|  | OutputGenerator.genGroup(self, groupinfo, groupName) | 
|  | groupElem = groupinfo.elem | 
|  | # For enum_string_header | 
|  | if self.helper_file_type == 'enum_string_header': | 
|  | value_list = [] | 
|  | for elem in groupElem.findall('enum'): | 
|  | if elem.get('supported') != 'disabled': | 
|  | item_name = elem.get('name') | 
|  | value_list.append(item_name) | 
|  | if value_list is not None: | 
|  | self.enum_output += self.GenerateEnumStringConversion(groupName, value_list) | 
|  | elif self.helper_file_type == 'object_types_header': | 
|  | if groupName == 'VkDebugReportObjectTypeEXT': | 
|  | for elem in groupElem.findall('enum'): | 
|  | if elem.get('supported') != 'disabled': | 
|  | item_name = elem.get('name') | 
|  | self.debug_report_object_types.append(item_name) | 
|  | elif groupName == 'VkObjectType': | 
|  | for elem in groupElem.findall('enum'): | 
|  | if elem.get('supported') != 'disabled': | 
|  | item_name = elem.get('name') | 
|  | self.core_object_types.append(item_name) | 
|  |  | 
|  | # | 
|  | # Called for each type -- if the type is a struct/union, grab the metadata | 
|  | 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 == 'handle': | 
|  | self.object_types.append(name) | 
|  | elif (category == 'struct' or category == 'union'): | 
|  | self.structNames.append(name) | 
|  | self.genStruct(typeinfo, name) | 
|  | # | 
|  | # 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) | 
|  | # Change to uppercase | 
|  | value = value.upper() | 
|  | # Add STRUCTURE_TYPE_ | 
|  | return re.sub('VK_', 'VK_STRUCTURE_TYPE_', value) | 
|  | # | 
|  | # Check if the parameter passed in is a pointer | 
|  | def paramIsPointer(self, param): | 
|  | ispointer = False | 
|  | for elem in param: | 
|  | if ((elem.tag is not 'type') and (elem.tail is not None)) and '*' in elem.tail: | 
|  | ispointer = True | 
|  | 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 | 
|  | # | 
|  | # 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) | 
|  | # 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) | 
|  | # Need to add 1 for ceiling function; otherwise, the allocated packet | 
|  | # size will be less than needed during capture for some title which use | 
|  | # this in VkPipelineMultisampleStateCreateInfo. based on ceiling function | 
|  | # definition,it is '{0}%{1}?{0}/{1} + 1:{0}/{1}'.format(*match.group(2, 3)), | 
|  | # its value <= '{}/{} + 1'. | 
|  | if match.group(1) == 'ceil': | 
|  | decoratedName = '{}/{} + 1'.format(*match.group(2, 3)) | 
|  | else: | 
|  | decoratedName = '{}/{}'.format(*match.group(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 | 
|  | # | 
|  | # 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 | 
|  | if 'latexmath' in len: | 
|  | param_type, param_name = self.getTypeNameTuple(param) | 
|  | len_name, result = self.parseLateXMath(len) | 
|  | # Spec has now notation for len attributes, using :: instead of platform specific pointer symbol | 
|  | result = str(result).replace('::', '->') | 
|  | return result | 
|  | # | 
|  | # Check if a structure is or contains a dispatchable (dispatchable = True) or | 
|  | # non-dispatchable (dispatchable = False) handle | 
|  | def TypeContainsObjectHandle(self, handle_type, dispatchable): | 
|  | if dispatchable: | 
|  | type_key = 'VK_DEFINE_HANDLE' | 
|  | else: | 
|  | type_key = 'VK_DEFINE_NON_DISPATCHABLE_HANDLE' | 
|  | handle = self.registry.tree.find("types/type/[name='" + handle_type + "'][@category='handle']") | 
|  | if handle is not None and handle.find('type').text == type_key: | 
|  | return True | 
|  | # if handle_type is a struct, search its members | 
|  | if handle_type in self.structNames: | 
|  | member_index = next((i for i, v in enumerate(self.structMembers) if v[0] == handle_type), None) | 
|  | if member_index is not None: | 
|  | for item in self.structMembers[member_index].members: | 
|  | handle = self.registry.tree.find("types/type/[name='" + item.type + "'][@category='handle']") | 
|  | if handle is not None and handle.find('type').text == type_key: | 
|  | return True | 
|  | return False | 
|  | # | 
|  | # Generate local ready-access data describing Vulkan structures and unions from the XML metadata | 
|  | def genStruct(self, typeinfo, typeName): | 
|  | OutputGenerator.genStruct(self, typeinfo, typeName) | 
|  | 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] | 
|  | cdecl = self.makeCParamDecl(member, 1) | 
|  | # 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 | 
|  | isstaticarray = self.paramIsStaticArray(member) | 
|  | membersInfo.append(self.CommandParam(type=type, | 
|  | name=name, | 
|  | ispointer=self.paramIsPointer(member), | 
|  | isstaticarray=isstaticarray, | 
|  | isconst=True if 'const' in cdecl else False, | 
|  | iscount=True if name in lens else False, | 
|  | len=self.getLen(member), | 
|  | extstructs=self.registry.validextensionstructs[typeName] if name == 'pNext' else None, | 
|  | cdecl=cdecl)) | 
|  | self.structMembers.append(self.StructMemberData(name=typeName, members=membersInfo, ifdef_protect=self.featureExtraProtect)) | 
|  | # | 
|  | # Enum_string_header: Create a routine to convert an enumerated value into a string | 
|  | def GenerateEnumStringConversion(self, groupName, value_list): | 
|  | outstring = '\n' | 
|  | outstring += 'static inline const char* string_%s(%s input_value)\n' % (groupName, groupName) | 
|  | outstring += '{\n' | 
|  | outstring += '    switch ((%s)input_value)\n' % groupName | 
|  | outstring += '    {\n' | 
|  | for item in value_list: | 
|  | outstring += '        case %s:\n' % item | 
|  | outstring += '            return "%s";\n' % item | 
|  | outstring += '        default:\n' | 
|  | outstring += '            return "Unhandled %s";\n' % groupName | 
|  | outstring += '    }\n' | 
|  | outstring += '}\n' | 
|  | return outstring | 
|  | # | 
|  | # Tack on a helper which, given an index into a VkPhysicalDeviceFeatures structure, will print the corresponding feature name | 
|  | def DeIndexPhysDevFeatures(self): | 
|  | pdev_members = None | 
|  | for name, members, ifdef in self.structMembers: | 
|  | if name == 'VkPhysicalDeviceFeatures': | 
|  | pdev_members = members | 
|  | break | 
|  | deindex = '\n' | 
|  | deindex += 'static const char * GetPhysDevFeatureString(uint32_t index) {\n' | 
|  | deindex += '    const char * IndexToPhysDevFeatureString[] = {\n' | 
|  | for feature in pdev_members: | 
|  | deindex += '        "%s",\n' % feature.name | 
|  | deindex += '    };\n\n' | 
|  | deindex += '    return IndexToPhysDevFeatureString[index];\n' | 
|  | deindex += '}\n' | 
|  | return deindex | 
|  | # | 
|  | # Combine enum string helper header file preamble with body text and return | 
|  | def GenerateEnumStringHelperHeader(self): | 
|  | enum_string_helper_header = '\n' | 
|  | enum_string_helper_header += '#pragma once\n' | 
|  | enum_string_helper_header += '#ifdef _WIN32\n' | 
|  | enum_string_helper_header += '#pragma warning( disable : 4065 )\n' | 
|  | enum_string_helper_header += '#endif\n' | 
|  | enum_string_helper_header += '\n' | 
|  | enum_string_helper_header += '#include <vulkan/vulkan.h>\n' | 
|  | enum_string_helper_header += '\n' | 
|  | enum_string_helper_header += self.enum_output | 
|  | enum_string_helper_header += self.DeIndexPhysDevFeatures() | 
|  | return enum_string_helper_header | 
|  | # | 
|  | # struct_size_header: build function prototypes for header file | 
|  | def GenerateStructSizeHeader(self): | 
|  | outstring = '' | 
|  | outstring += 'size_t get_struct_chain_size(const void* struct_ptr);\n' | 
|  | outstring += 'size_t get_struct_size(const void* struct_ptr);\n' | 
|  | for item in self.structMembers: | 
|  | lower_case_name = item.name.lower() | 
|  | if item.ifdef_protect != None: | 
|  | outstring += '#ifdef %s\n' % item.ifdef_protect | 
|  | outstring += 'size_t vk_size_%s(const %s* struct_ptr);\n' % (item.name.lower(), item.name) | 
|  | if item.ifdef_protect != None: | 
|  | outstring += '#endif // %s\n' % item.ifdef_protect | 
|  | outstring += '#ifdef __cplusplus\n' | 
|  | outstring += '}\n' | 
|  | outstring += '#endif' | 
|  | return outstring | 
|  | # | 
|  | # Combine struct size helper header file preamble with body text and return | 
|  | def GenerateStructSizeHelperHeader(self): | 
|  | struct_size_helper_header = '\n' | 
|  | struct_size_helper_header += '#ifdef __cplusplus\n' | 
|  | struct_size_helper_header += 'extern "C" {\n' | 
|  | struct_size_helper_header += '#endif\n' | 
|  | struct_size_helper_header += '\n' | 
|  | struct_size_helper_header += '#include <stdio.h>\n' | 
|  | struct_size_helper_header += '#include <stdlib.h>\n' | 
|  | struct_size_helper_header += '#include <vulkan/vulkan.h>\n' | 
|  | struct_size_helper_header += '\n' | 
|  | struct_size_helper_header += '// Function Prototypes\n' | 
|  | struct_size_helper_header += self.GenerateStructSizeHeader() | 
|  | return struct_size_helper_header | 
|  | # | 
|  | # Helper function for declaring a counter variable only once | 
|  | def DeclareCounter(self, string_var, declare_flag): | 
|  | if declare_flag == False: | 
|  | string_var += '        uint32_t i = 0;\n' | 
|  | declare_flag = True | 
|  | return string_var, declare_flag | 
|  | # | 
|  | # Build the header of the get_struct_chain_size function | 
|  | def GenerateChainSizePreamble(self): | 
|  | preamble = '\nsize_t get_struct_chain_size(const void* struct_ptr) {\n' | 
|  | preamble += '    // Use VkApplicationInfo as struct until actual type is resolved\n' | 
|  | preamble += '    VkApplicationInfo* pNext = (VkApplicationInfo*)struct_ptr;\n' | 
|  | preamble += '    size_t struct_size = 0;\n' | 
|  | preamble += '    while (pNext) {\n' | 
|  | preamble += '        switch (pNext->sType) {\n' | 
|  | return preamble | 
|  | # | 
|  | # Build the footer of the get_struct_chain_size function | 
|  | def GenerateChainSizePostamble(self): | 
|  | postamble  = '            default:\n' | 
|  | postamble += '                struct_size += 0;\n' | 
|  | postamble += '                break;' | 
|  | postamble += '        }\n' | 
|  | postamble += '        pNext = (VkApplicationInfo*)pNext->pNext;\n' | 
|  | postamble += '    }\n' | 
|  | postamble += '    return struct_size;\n' | 
|  | postamble += '}\n' | 
|  | return postamble | 
|  | # | 
|  | # Build the header of the get_struct_size function | 
|  | def GenerateStructSizePreamble(self): | 
|  | preamble = '\nsize_t get_struct_size(const void* struct_ptr) {\n' | 
|  | preamble += '    switch (((VkApplicationInfo*)struct_ptr)->sType) {\n' | 
|  | return preamble | 
|  | # | 
|  | # Build the footer of the get_struct_size function | 
|  | def GenerateStructSizePostamble(self): | 
|  | postamble  = '    default:\n' | 
|  | postamble += '        return(0);\n' | 
|  | postamble += '    }\n' | 
|  | postamble += '}' | 
|  | return postamble | 
|  | # | 
|  | # struct_size_helper source -- create bodies of struct size helper functions | 
|  | def GenerateStructSizeSource(self): | 
|  | # Construct the bodies of the struct size functions, get_struct_chain_size(), | 
|  | # and get_struct_size() simultaneously | 
|  | struct_size_funcs = '' | 
|  | chain_size  = self.GenerateChainSizePreamble() | 
|  | struct_size  = self.GenerateStructSizePreamble() | 
|  | for item in self.structMembers: | 
|  | struct_size_funcs += '\n' | 
|  | lower_case_name = item.name.lower() | 
|  | if item.ifdef_protect != None: | 
|  | struct_size_funcs += '#ifdef %s\n' % item.ifdef_protect | 
|  | struct_size += '#ifdef %s\n' % item.ifdef_protect | 
|  | chain_size += '#ifdef %s\n' % item.ifdef_protect | 
|  | if item.name in self.structTypes: | 
|  | chain_size += '            case %s: {\n' % self.structTypes[item.name].value | 
|  | chain_size += '                struct_size += vk_size_%s((%s*)pNext);\n' % (item.name.lower(), item.name) | 
|  | chain_size += '                break;\n' | 
|  | chain_size += '            }\n' | 
|  | struct_size += '    case %s: \n' % self.structTypes[item.name].value | 
|  | struct_size += '        return vk_size_%s((%s*)struct_ptr);\n' % (item.name.lower(), item.name) | 
|  | struct_size_funcs += 'size_t vk_size_%s(const %s* struct_ptr) { \n' % (item.name.lower(), item.name) | 
|  | struct_size_funcs += '    size_t struct_size = 0;\n' | 
|  | struct_size_funcs += '    if (struct_ptr) {\n' | 
|  | struct_size_funcs += '        struct_size = sizeof(%s);\n' % item.name | 
|  | counter_declared = False | 
|  | for member in item.members: | 
|  | vulkan_type = next((i for i, v in enumerate(self.structMembers) if v[0] == member.type), None) | 
|  | if member.ispointer == True: | 
|  | if vulkan_type is not None: | 
|  | # If this is another Vulkan structure call generated size function | 
|  | if member.len is not None: | 
|  | struct_size_funcs, counter_declared = self.DeclareCounter(struct_size_funcs, counter_declared) | 
|  | struct_size_funcs += '        for (i = 0; i < struct_ptr->%s; i++) {\n' % member.len | 
|  | struct_size_funcs += '            struct_size += vk_size_%s(&struct_ptr->%s[i]);\n' % (member.type.lower(), member.name) | 
|  | struct_size_funcs += '        }\n' | 
|  | else: | 
|  | struct_size_funcs += '        struct_size += vk_size_%s(struct_ptr->%s);\n' % (member.type.lower(), member.name) | 
|  | else: | 
|  | if member.type == 'char': | 
|  | # Deal with sizes of character strings | 
|  | if member.len is not None: | 
|  | struct_size_funcs, counter_declared = self.DeclareCounter(struct_size_funcs, counter_declared) | 
|  | struct_size_funcs += '        for (i = 0; i < struct_ptr->%s; i++) {\n' % member.len | 
|  | struct_size_funcs += '            struct_size += (sizeof(char*) + (sizeof(char) * (1 + strlen(struct_ptr->%s[i]))));\n' % (member.name) | 
|  | struct_size_funcs += '        }\n' | 
|  | else: | 
|  | struct_size_funcs += '        struct_size += (struct_ptr->%s != NULL) ? sizeof(char)*(1+strlen(struct_ptr->%s)) : 0;\n' % (member.name, member.name) | 
|  | else: | 
|  | if member.len is not None: | 
|  | # Avoid using 'sizeof(void)', which generates compile-time warnings/errors | 
|  | checked_type = member.type | 
|  | if checked_type == 'void': | 
|  | checked_type = 'void*' | 
|  | struct_size_funcs += '        struct_size += (struct_ptr->%s ) * sizeof(%s);\n' % (member.len, checked_type) | 
|  | struct_size_funcs += '    }\n' | 
|  | struct_size_funcs += '    return struct_size;\n' | 
|  | struct_size_funcs += '}\n' | 
|  | if item.ifdef_protect != None: | 
|  | struct_size_funcs += '#endif // %s\n' % item.ifdef_protect | 
|  | struct_size += '#endif // %s\n' % item.ifdef_protect | 
|  | chain_size += '#endif // %s\n' % item.ifdef_protect | 
|  | chain_size += self.GenerateChainSizePostamble() | 
|  | struct_size += self.GenerateStructSizePostamble() | 
|  | return_value = struct_size_funcs + chain_size + struct_size; | 
|  | return return_value | 
|  | # | 
|  | # Combine struct size helper source file preamble with body text and return | 
|  | def GenerateStructSizeHelperSource(self): | 
|  | struct_size_helper_source = '\n' | 
|  | struct_size_helper_source += '#include "vk_struct_size_helper.h"\n' | 
|  | struct_size_helper_source += '#include <string.h>\n' | 
|  | struct_size_helper_source += '#include <assert.h>\n' | 
|  | struct_size_helper_source += '\n' | 
|  | struct_size_helper_source += '// Function Definitions\n' | 
|  | struct_size_helper_source += self.GenerateStructSizeSource() | 
|  | return struct_size_helper_source | 
|  | # | 
|  | # Combine safe struct helper header file preamble with body text and return | 
|  | def GenerateSafeStructHelperHeader(self): | 
|  | safe_struct_helper_header = '\n' | 
|  | safe_struct_helper_header += '#pragma once\n' | 
|  | safe_struct_helper_header += '#include <vulkan/vulkan.h>\n' | 
|  | safe_struct_helper_header += '\n' | 
|  | safe_struct_helper_header += self.GenerateSafeStructHeader() | 
|  | return safe_struct_helper_header | 
|  | # | 
|  | # safe_struct header: build function prototypes for header file | 
|  | def GenerateSafeStructHeader(self): | 
|  | safe_struct_header = '' | 
|  | for item in self.structMembers: | 
|  | if self.NeedSafeStruct(item) == True: | 
|  | safe_struct_header += '\n' | 
|  | if item.ifdef_protect != None: | 
|  | safe_struct_header += '#ifdef %s\n' % item.ifdef_protect | 
|  | safe_struct_header += 'struct safe_%s {\n' % (item.name) | 
|  | for member in item.members: | 
|  | if member.type in self.structNames: | 
|  | member_index = next((i for i, v in enumerate(self.structMembers) if v[0] == member.type), None) | 
|  | if member_index is not None and self.NeedSafeStruct(self.structMembers[member_index]) == True: | 
|  | if member.ispointer: | 
|  | safe_struct_header += '    safe_%s* %s;\n' % (member.type, member.name) | 
|  | else: | 
|  | safe_struct_header += '    safe_%s %s;\n' % (member.type, member.name) | 
|  | continue | 
|  | if member.len is not None and (self.TypeContainsObjectHandle(member.type, True) or self.TypeContainsObjectHandle(member.type, False)): | 
|  | safe_struct_header += '    %s* %s;\n' % (member.type, member.name) | 
|  | else: | 
|  | safe_struct_header += '%s;\n' % member.cdecl | 
|  | safe_struct_header += '    safe_%s(const %s* in_struct%s);\n' % (item.name, item.name, self.custom_construct_params.get(item.name, '')) | 
|  | safe_struct_header += '    safe_%s(const safe_%s& src);\n' % (item.name, item.name) | 
|  | safe_struct_header += '    safe_%s& operator=(const safe_%s& src);\n' % (item.name, item.name) | 
|  | safe_struct_header += '    safe_%s();\n' % item.name | 
|  | safe_struct_header += '    ~safe_%s();\n' % item.name | 
|  | safe_struct_header += '    void initialize(const %s* in_struct%s);\n' % (item.name, self.custom_construct_params.get(item.name, '')) | 
|  | safe_struct_header += '    void initialize(const safe_%s* src);\n' % (item.name) | 
|  | safe_struct_header += '    %s *ptr() { return reinterpret_cast<%s *>(this); }\n' % (item.name, item.name) | 
|  | safe_struct_header += '    %s const *ptr() const { return reinterpret_cast<%s const *>(this); }\n' % (item.name, item.name) | 
|  | safe_struct_header += '};\n' | 
|  | if item.ifdef_protect != None: | 
|  | safe_struct_header += '#endif // %s\n' % item.ifdef_protect | 
|  | return safe_struct_header | 
|  | # | 
|  | # Generate extension helper header file | 
|  | def GenerateExtensionHelperHeader(self): | 
|  | extension_helper_header = '\n' | 
|  | extension_helper_header += '#ifndef VK_EXTENSION_HELPER_H_\n' | 
|  | extension_helper_header += '#define VK_EXTENSION_HELPER_H_\n' | 
|  | struct  = '\n' | 
|  | extension_helper_header += '#include <vulkan/vulkan.h>\n' | 
|  | extension_helper_header += '#include <string.h>\n' | 
|  | extension_helper_header += '#include <utility>\n' | 
|  | extension_helper_header += '\n' | 
|  | extension_dict = dict() | 
|  | for type in ['Instance', 'Device']: | 
|  | if type == 'Instance': | 
|  | extension_dict = self.instance_extension_info | 
|  | struct += 'struct InstanceExtensions { \n' | 
|  | else: | 
|  | extension_dict = self.device_extension_info | 
|  | struct += 'struct DeviceExtensions : public InstanceExtensions { \n' | 
|  | for ext_name, ifdef in extension_dict.items(): | 
|  | bool_name = ext_name.lower() | 
|  | bool_name = re.sub('_extension_name', '', bool_name) | 
|  | struct += '    bool %s{false};\n' % bool_name | 
|  | struct += '\n' | 
|  | if type == 'Instance': | 
|  | struct += '    void InitFromInstanceCreateInfo(const VkInstanceCreateInfo *pCreateInfo) {\n' | 
|  | else: | 
|  | struct += '    void InitFromDeviceCreateInfo(const InstanceExtensions *instance_extensions, const VkDeviceCreateInfo *pCreateInfo) {\n' | 
|  | struct += '\n' | 
|  | struct += '        static const std::pair<char const *, bool %sExtensions::*> known_extensions[]{\n' % type | 
|  | for ext_name, ifdef in extension_dict.items(): | 
|  | if ifdef is not None: | 
|  | struct += '#ifdef %s\n' % ifdef | 
|  | bool_name = ext_name.lower() | 
|  | bool_name = re.sub('_extension_name', '', bool_name) | 
|  | struct += '            {%s, &%sExtensions::%s},\n' % (ext_name, type, bool_name) | 
|  | if ifdef is not None: | 
|  | struct += '#endif\n' | 
|  | struct += '        };\n' | 
|  | struct += '\n' | 
|  | struct += '        // Initialize struct data\n' | 
|  | for ext_name, ifdef in self.instance_extension_info.items(): | 
|  | bool_name = ext_name.lower() | 
|  | bool_name = re.sub('_extension_name', '', bool_name) | 
|  | if type == 'Device': | 
|  | struct += '        %s = instance_extensions->%s;\n' % (bool_name, bool_name) | 
|  | struct += '\n' | 
|  | struct += '        for (uint32_t i = 0; i < pCreateInfo->enabledExtensionCount; i++) {\n' | 
|  | struct += '            for (auto ext : known_extensions) {\n' | 
|  | struct += '                if (!strcmp(ext.first, pCreateInfo->ppEnabledExtensionNames[i])) {\n' | 
|  | struct += '                    this->*(ext.second) = true;\n' | 
|  | struct += '                    break;\n' | 
|  | struct += '                }\n' | 
|  | struct += '            }\n' | 
|  | struct += '        }\n' | 
|  | struct += '    }\n' | 
|  | struct += '};\n' | 
|  | struct += '\n' | 
|  | extension_helper_header += struct | 
|  | extension_helper_header += '\n' | 
|  | extension_helper_header += '#endif // VK_EXTENSION_HELPER_H_\n' | 
|  | return extension_helper_header | 
|  | # | 
|  | # Combine object types helper header file preamble with body text and return | 
|  | def GenerateObjectTypesHelperHeader(self): | 
|  | object_types_helper_header = '\n' | 
|  | object_types_helper_header += '#pragma once\n' | 
|  | object_types_helper_header += '\n' | 
|  | object_types_helper_header += '#include <vulkan/vulkan.h>\n\n' | 
|  | object_types_helper_header += self.GenerateObjectTypesHeader() | 
|  | return object_types_helper_header | 
|  | # | 
|  | # Object types header: create object enum type header file | 
|  | def GenerateObjectTypesHeader(self): | 
|  | object_types_header = '// Object Type enum for validation layer internal object handling\n' | 
|  | object_types_header += 'typedef enum VulkanObjectType {\n' | 
|  | object_types_header += '    kVulkanObjectTypeUnknown = 0,\n' | 
|  | enum_num = 1 | 
|  | type_list = []; | 
|  |  | 
|  | # Output enum definition as each handle is processed, saving the names to use for the conversion routine | 
|  | for item in self.object_types: | 
|  | fixup_name = item[2:] | 
|  | enum_entry = 'kVulkanObjectType%s' % fixup_name | 
|  | object_types_header += '    ' + enum_entry | 
|  | object_types_header += ' = %d,\n' % enum_num | 
|  | enum_num += 1 | 
|  | type_list.append(enum_entry) | 
|  | object_types_header += '    kVulkanObjectTypeMax = %d,\n' % enum_num | 
|  | object_types_header += '} VulkanObjectType;\n\n' | 
|  |  | 
|  | # Output name string helper | 
|  | object_types_header += '// Array of object name strings for OBJECT_TYPE enum conversion\n' | 
|  | object_types_header += 'static const char * const object_string[kVulkanObjectTypeMax] = {\n' | 
|  | object_types_header += '    "Unknown",\n' | 
|  | for item in self.object_types: | 
|  | fixup_name = item[2:] | 
|  | object_types_header += '    "%s",\n' % fixup_name | 
|  | object_types_header += '};\n' | 
|  |  | 
|  | # Output a conversion routine from the layer object definitions to the debug report definitions | 
|  | object_types_header += '\n' | 
|  | object_types_header += '// Helper array to get Vulkan VK_EXT_debug_report object type enum from the internal layers version\n' | 
|  | object_types_header += 'const VkDebugReportObjectTypeEXT get_debug_report_enum[] = {\n' | 
|  | object_types_header += '    VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT, // No Match\n' | 
|  | for object_type in type_list: | 
|  | search_type = object_type.replace("kVulkanObjectType", "").lower() | 
|  | for vk_object_type in self.debug_report_object_types: | 
|  | target_type = vk_object_type.replace("VK_DEBUG_REPORT_OBJECT_TYPE_", "").lower() | 
|  | target_type = target_type[:-4] | 
|  | target_type = target_type.replace("_", "") | 
|  | if search_type == target_type: | 
|  | object_types_header += '    %s,   // %s\n' % (vk_object_type, object_type) | 
|  | break | 
|  | object_types_header += '};\n' | 
|  |  | 
|  | # Output a conversion routine from the layer object definitions to the core object type definitions | 
|  | object_types_header += '\n' | 
|  | object_types_header += '// Helper array to get Official Vulkan VkObjectType enum from the internal layers version\n' | 
|  | object_types_header += 'const VkObjectType get_object_type_enum[] = {\n' | 
|  | object_types_header += '    VK_OBJECT_TYPE_UNKNOWN, // No Match\n' | 
|  | for object_type in type_list: | 
|  | search_type = object_type.replace("kVulkanObjectType", "").lower() | 
|  | for vk_object_type in self.core_object_types: | 
|  | target_type = vk_object_type.replace("VK_OBJECT_TYPE_", "").lower() | 
|  | target_type = target_type.replace("_", "") | 
|  | if search_type == target_type: | 
|  | object_types_header += '    %s,   // %s\n' % (vk_object_type, object_type) | 
|  | break | 
|  | object_types_header += '};\n' | 
|  |  | 
|  | return object_types_header | 
|  | # | 
|  | # Determine if a structure needs a safe_struct helper function | 
|  | # That is, it has an sType or one of its members is a pointer | 
|  | def NeedSafeStruct(self, structure): | 
|  | if 'sType' == structure.name: | 
|  | return True | 
|  | for member in structure.members: | 
|  | if member.ispointer == True: | 
|  | return True | 
|  | return False | 
|  | # | 
|  | # Combine safe struct helper source file preamble with body text and return | 
|  | def GenerateSafeStructHelperSource(self): | 
|  | safe_struct_helper_source = '\n' | 
|  | safe_struct_helper_source += '#include "vk_safe_struct.h"\n' | 
|  | safe_struct_helper_source += '#include <string.h>\n' | 
|  | safe_struct_helper_source += '\n' | 
|  | safe_struct_helper_source += self.GenerateSafeStructSource() | 
|  | return safe_struct_helper_source | 
|  | # | 
|  | # safe_struct source -- create bodies of safe struct helper functions | 
|  | def GenerateSafeStructSource(self): | 
|  | safe_struct_body = [] | 
|  | wsi_structs = ['VkXlibSurfaceCreateInfoKHR', | 
|  | 'VkXcbSurfaceCreateInfoKHR', | 
|  | 'VkWaylandSurfaceCreateInfoKHR', | 
|  | 'VkMirSurfaceCreateInfoKHR', | 
|  | 'VkAndroidSurfaceCreateInfoKHR', | 
|  | 'VkWin32SurfaceCreateInfoKHR' | 
|  | ] | 
|  | for item in self.structMembers: | 
|  | if self.NeedSafeStruct(item) == False: | 
|  | continue | 
|  | if item.name in wsi_structs: | 
|  | continue | 
|  | if item.ifdef_protect != None: | 
|  | safe_struct_body.append("#ifdef %s\n" % item.ifdef_protect) | 
|  | ss_name = "safe_%s" % item.name | 
|  | init_list = ''          # list of members in struct constructor initializer | 
|  | default_init_list = ''  # Default constructor just inits ptrs to nullptr in initializer | 
|  | init_func_txt = ''      # Txt for initialize() function that takes struct ptr and inits members | 
|  | construct_txt = ''      # Body of constuctor as well as body of initialize() func following init_func_txt | 
|  | destruct_txt = '' | 
|  |  | 
|  | custom_construct_txt = { | 
|  | # VkWriteDescriptorSet is special case because pointers may be non-null but ignored | 
|  | 'VkWriteDescriptorSet' : | 
|  | '    switch (descriptorType) {\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_SAMPLER:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT:\n' | 
|  | '        if (descriptorCount && in_struct->pImageInfo) {\n' | 
|  | '            pImageInfo = new VkDescriptorImageInfo[descriptorCount];\n' | 
|  | '            for (uint32_t i=0; i<descriptorCount; ++i) {\n' | 
|  | '                pImageInfo[i] = in_struct->pImageInfo[i];\n' | 
|  | '            }\n' | 
|  | '        }\n' | 
|  | '        break;\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC:\n' | 
|  | '        if (descriptorCount && in_struct->pBufferInfo) {\n' | 
|  | '            pBufferInfo = new VkDescriptorBufferInfo[descriptorCount];\n' | 
|  | '            for (uint32_t i=0; i<descriptorCount; ++i) {\n' | 
|  | '                pBufferInfo[i] = in_struct->pBufferInfo[i];\n' | 
|  | '            }\n' | 
|  | '        }\n' | 
|  | '        break;\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER:\n' | 
|  | '        case VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER:\n' | 
|  | '        if (descriptorCount && in_struct->pTexelBufferView) {\n' | 
|  | '            pTexelBufferView = new VkBufferView[descriptorCount];\n' | 
|  | '            for (uint32_t i=0; i<descriptorCount; ++i) {\n' | 
|  | '                pTexelBufferView[i] = in_struct->pTexelBufferView[i];\n' | 
|  | '            }\n' | 
|  | '        }\n' | 
|  | '        break;\n' | 
|  | '        default:\n' | 
|  | '        break;\n' | 
|  | '    }\n', | 
|  | 'VkShaderModuleCreateInfo' : | 
|  | '    if (in_struct->pCode) {\n' | 
|  | '        pCode = reinterpret_cast<uint32_t *>(new uint8_t[codeSize]);\n' | 
|  | '        memcpy((void *)pCode, (void *)in_struct->pCode, codeSize);\n' | 
|  | '    }\n', | 
|  | # VkGraphicsPipelineCreateInfo is special case because its pointers may be non-null but ignored | 
|  | 'VkGraphicsPipelineCreateInfo' : | 
|  | '    if (stageCount && in_struct->pStages) {\n' | 
|  | '        pStages = new safe_VkPipelineShaderStageCreateInfo[stageCount];\n' | 
|  | '        for (uint32_t i=0; i<stageCount; ++i) {\n' | 
|  | '            pStages[i].initialize(&in_struct->pStages[i]);\n' | 
|  | '        }\n' | 
|  | '    }\n' | 
|  | '    if (in_struct->pVertexInputState)\n' | 
|  | '        pVertexInputState = new safe_VkPipelineVertexInputStateCreateInfo(in_struct->pVertexInputState);\n' | 
|  | '    else\n' | 
|  | '        pVertexInputState = NULL;\n' | 
|  | '    if (in_struct->pInputAssemblyState)\n' | 
|  | '        pInputAssemblyState = new safe_VkPipelineInputAssemblyStateCreateInfo(in_struct->pInputAssemblyState);\n' | 
|  | '    else\n' | 
|  | '        pInputAssemblyState = NULL;\n' | 
|  | '    bool has_tessellation_stage = false;\n' | 
|  | '    if (stageCount && pStages)\n' | 
|  | '        for (uint32_t i=0; i<stageCount && !has_tessellation_stage; ++i)\n' | 
|  | '            if (pStages[i].stage == VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT || pStages[i].stage == VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT)\n' | 
|  | '                has_tessellation_stage = true;\n' | 
|  | '    if (in_struct->pTessellationState && has_tessellation_stage)\n' | 
|  | '        pTessellationState = new safe_VkPipelineTessellationStateCreateInfo(in_struct->pTessellationState);\n' | 
|  | '    else\n' | 
|  | '        pTessellationState = NULL; // original pTessellationState pointer ignored\n' | 
|  | '    bool has_rasterization = in_struct->pRasterizationState ? !in_struct->pRasterizationState->rasterizerDiscardEnable : false;\n' | 
|  | '    if (in_struct->pViewportState && has_rasterization) {\n' | 
|  | '        bool is_dynamic_viewports = false;\n' | 
|  | '        bool is_dynamic_scissors = false;\n' | 
|  | '        if (in_struct->pDynamicState && in_struct->pDynamicState->pDynamicStates) {\n' | 
|  | '            for (uint32_t i = 0; i < in_struct->pDynamicState->dynamicStateCount && !is_dynamic_viewports; ++i)\n' | 
|  | '                if (in_struct->pDynamicState->pDynamicStates[i] == VK_DYNAMIC_STATE_VIEWPORT)\n' | 
|  | '                    is_dynamic_viewports = true;\n' | 
|  | '            for (uint32_t i = 0; i < in_struct->pDynamicState->dynamicStateCount && !is_dynamic_scissors; ++i)\n' | 
|  | '                if (in_struct->pDynamicState->pDynamicStates[i] == VK_DYNAMIC_STATE_SCISSOR)\n' | 
|  | '                    is_dynamic_scissors = true;\n' | 
|  | '        }\n' | 
|  | '        pViewportState = new safe_VkPipelineViewportStateCreateInfo(in_struct->pViewportState, is_dynamic_viewports, is_dynamic_scissors);\n' | 
|  | '    } else\n' | 
|  | '        pViewportState = NULL; // original pViewportState pointer ignored\n' | 
|  | '    if (in_struct->pRasterizationState)\n' | 
|  | '        pRasterizationState = new safe_VkPipelineRasterizationStateCreateInfo(in_struct->pRasterizationState);\n' | 
|  | '    else\n' | 
|  | '        pRasterizationState = NULL;\n' | 
|  | '    if (in_struct->pMultisampleState && has_rasterization)\n' | 
|  | '        pMultisampleState = new safe_VkPipelineMultisampleStateCreateInfo(in_struct->pMultisampleState);\n' | 
|  | '    else\n' | 
|  | '        pMultisampleState = NULL; // original pMultisampleState pointer ignored\n' | 
|  | '    // needs a tracked subpass state uses_depthstencil_attachment\n' | 
|  | '    if (in_struct->pDepthStencilState && has_rasterization && uses_depthstencil_attachment)\n' | 
|  | '        pDepthStencilState = new safe_VkPipelineDepthStencilStateCreateInfo(in_struct->pDepthStencilState);\n' | 
|  | '    else\n' | 
|  | '        pDepthStencilState = NULL; // original pDepthStencilState pointer ignored\n' | 
|  | '    // needs a tracked subpass state usesColorAttachment\n' | 
|  | '    if (in_struct->pColorBlendState && has_rasterization && uses_color_attachment)\n' | 
|  | '        pColorBlendState = new safe_VkPipelineColorBlendStateCreateInfo(in_struct->pColorBlendState);\n' | 
|  | '    else\n' | 
|  | '        pColorBlendState = NULL; // original pColorBlendState pointer ignored\n' | 
|  | '    if (in_struct->pDynamicState)\n' | 
|  | '        pDynamicState = new safe_VkPipelineDynamicStateCreateInfo(in_struct->pDynamicState);\n' | 
|  | '    else\n' | 
|  | '        pDynamicState = NULL;\n', | 
|  | # VkPipelineViewportStateCreateInfo is special case because its pointers may be non-null but ignored | 
|  | 'VkPipelineViewportStateCreateInfo' : | 
|  | '    if (in_struct->pViewports && !is_dynamic_viewports) {\n' | 
|  | '        pViewports = new VkViewport[in_struct->viewportCount];\n' | 
|  | '        memcpy ((void *)pViewports, (void *)in_struct->pViewports, sizeof(VkViewport)*in_struct->viewportCount);\n' | 
|  | '    }\n' | 
|  | '    else\n' | 
|  | '        pViewports = NULL;\n' | 
|  | '    if (in_struct->pScissors && !is_dynamic_scissors) {\n' | 
|  | '        pScissors = new VkRect2D[in_struct->scissorCount];\n' | 
|  | '        memcpy ((void *)pScissors, (void *)in_struct->pScissors, sizeof(VkRect2D)*in_struct->scissorCount);\n' | 
|  | '    }\n' | 
|  | '    else\n' | 
|  | '        pScissors = NULL;\n', | 
|  | # VkDescriptorSetLayoutBinding is special case because its pImmutableSamplers pointer may be non-null but ignored | 
|  | 'VkDescriptorSetLayoutBinding' : | 
|  | '    const bool sampler_type = in_struct->descriptorType == VK_DESCRIPTOR_TYPE_SAMPLER || in_struct->descriptorType == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;\n' | 
|  | '    if (descriptorCount && in_struct->pImmutableSamplers && sampler_type) {\n' | 
|  | '        pImmutableSamplers = new VkSampler[descriptorCount];\n' | 
|  | '        for (uint32_t i=0; i<descriptorCount; ++i) {\n' | 
|  | '            pImmutableSamplers[i] = in_struct->pImmutableSamplers[i];\n' | 
|  | '        }\n' | 
|  | '    }\n', | 
|  | } | 
|  |  | 
|  | custom_copy_txt = { | 
|  | # VkGraphicsPipelineCreateInfo is special case because it has custom construct parameters | 
|  | 'VkGraphicsPipelineCreateInfo' : | 
|  | '    if (stageCount && src.pStages) {\n' | 
|  | '        pStages = new safe_VkPipelineShaderStageCreateInfo[stageCount];\n' | 
|  | '        for (uint32_t i=0; i<stageCount; ++i) {\n' | 
|  | '            pStages[i].initialize(&src.pStages[i]);\n' | 
|  | '        }\n' | 
|  | '    }\n' | 
|  | '    if (src.pVertexInputState)\n' | 
|  | '        pVertexInputState = new safe_VkPipelineVertexInputStateCreateInfo(*src.pVertexInputState);\n' | 
|  | '    else\n' | 
|  | '        pVertexInputState = NULL;\n' | 
|  | '    if (src.pInputAssemblyState)\n' | 
|  | '        pInputAssemblyState = new safe_VkPipelineInputAssemblyStateCreateInfo(*src.pInputAssemblyState);\n' | 
|  | '    else\n' | 
|  | '        pInputAssemblyState = NULL;\n' | 
|  | '    bool has_tessellation_stage = false;\n' | 
|  | '    if (stageCount && pStages)\n' | 
|  | '        for (uint32_t i=0; i<stageCount && !has_tessellation_stage; ++i)\n' | 
|  | '            if (pStages[i].stage == VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT || pStages[i].stage == VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT)\n' | 
|  | '                has_tessellation_stage = true;\n' | 
|  | '    if (src.pTessellationState && has_tessellation_stage)\n' | 
|  | '        pTessellationState = new safe_VkPipelineTessellationStateCreateInfo(*src.pTessellationState);\n' | 
|  | '    else\n' | 
|  | '        pTessellationState = NULL; // original pTessellationState pointer ignored\n' | 
|  | '    bool has_rasterization = src.pRasterizationState ? !src.pRasterizationState->rasterizerDiscardEnable : false;\n' | 
|  | '    if (src.pViewportState && has_rasterization) {\n' | 
|  | '        pViewportState = new safe_VkPipelineViewportStateCreateInfo(*src.pViewportState);\n' | 
|  | '    } else\n' | 
|  | '        pViewportState = NULL; // original pViewportState pointer ignored\n' | 
|  | '    if (src.pRasterizationState)\n' | 
|  | '        pRasterizationState = new safe_VkPipelineRasterizationStateCreateInfo(*src.pRasterizationState);\n' | 
|  | '    else\n' | 
|  | '        pRasterizationState = NULL;\n' | 
|  | '    if (src.pMultisampleState && has_rasterization)\n' | 
|  | '        pMultisampleState = new safe_VkPipelineMultisampleStateCreateInfo(*src.pMultisampleState);\n' | 
|  | '    else\n' | 
|  | '        pMultisampleState = NULL; // original pMultisampleState pointer ignored\n' | 
|  | '    if (src.pDepthStencilState && has_rasterization)\n' | 
|  | '        pDepthStencilState = new safe_VkPipelineDepthStencilStateCreateInfo(*src.pDepthStencilState);\n' | 
|  | '    else\n' | 
|  | '        pDepthStencilState = NULL; // original pDepthStencilState pointer ignored\n' | 
|  | '    if (src.pColorBlendState && has_rasterization)\n' | 
|  | '        pColorBlendState = new safe_VkPipelineColorBlendStateCreateInfo(*src.pColorBlendState);\n' | 
|  | '    else\n' | 
|  | '        pColorBlendState = NULL; // original pColorBlendState pointer ignored\n' | 
|  | '    if (src.pDynamicState)\n' | 
|  | '        pDynamicState = new safe_VkPipelineDynamicStateCreateInfo(*src.pDynamicState);\n' | 
|  | '    else\n' | 
|  | '        pDynamicState = NULL;\n', | 
|  | # VkPipelineViewportStateCreateInfo is special case because it has custom construct parameters | 
|  | 'VkPipelineViewportStateCreateInfo' : | 
|  | '    if (src.pViewports) {\n' | 
|  | '        pViewports = new VkViewport[src.viewportCount];\n' | 
|  | '        memcpy ((void *)pViewports, (void *)src.pViewports, sizeof(VkViewport)*src.viewportCount);\n' | 
|  | '    }\n' | 
|  | '    else\n' | 
|  | '        pViewports = NULL;\n' | 
|  | '    if (src.pScissors) {\n' | 
|  | '        pScissors = new VkRect2D[src.scissorCount];\n' | 
|  | '        memcpy ((void *)pScissors, (void *)src.pScissors, sizeof(VkRect2D)*src.scissorCount);\n' | 
|  | '    }\n' | 
|  | '    else\n' | 
|  | '        pScissors = NULL;\n', | 
|  | } | 
|  |  | 
|  | custom_destruct_txt = {'VkShaderModuleCreateInfo' : | 
|  | '    if (pCode)\n' | 
|  | '        delete[] reinterpret_cast<const uint8_t *>(pCode);\n' } | 
|  |  | 
|  | for member in item.members: | 
|  | m_type = member.type | 
|  | if member.type in self.structNames: | 
|  | member_index = next((i for i, v in enumerate(self.structMembers) if v[0] == member.type), None) | 
|  | if member_index is not None and self.NeedSafeStruct(self.structMembers[member_index]) == True: | 
|  | m_type = 'safe_%s' % member.type | 
|  | if member.ispointer and 'safe_' not in m_type and self.TypeContainsObjectHandle(member.type, False) == False: | 
|  | # Ptr types w/o a safe_struct, for non-null case need to allocate new ptr and copy data in | 
|  | if m_type in ['void', 'char']: | 
|  | # For these exceptions just copy initial value over for now | 
|  | init_list += '\n    %s(in_struct->%s),' % (member.name, member.name) | 
|  | init_func_txt += '    %s = in_struct->%s;\n' % (member.name, member.name) | 
|  | else: | 
|  | default_init_list += '\n    %s(nullptr),' % (member.name) | 
|  | init_list += '\n    %s(nullptr),' % (member.name) | 
|  | init_func_txt += '    %s = nullptr;\n' % (member.name) | 
|  | if 'pNext' != member.name and 'void' not in m_type: | 
|  | if not member.isstaticarray and (member.len is None or '/' in member.len): | 
|  | construct_txt += '    if (in_struct->%s) {\n' % member.name | 
|  | construct_txt += '        %s = new %s(*in_struct->%s);\n' % (member.name, m_type, member.name) | 
|  | construct_txt += '    }\n' | 
|  | destruct_txt += '    if (%s)\n' % member.name | 
|  | destruct_txt += '        delete %s;\n' % member.name | 
|  | else: | 
|  | construct_txt += '    if (in_struct->%s) {\n' % member.name | 
|  | construct_txt += '        %s = new %s[in_struct->%s];\n' % (member.name, m_type, member.len) | 
|  | construct_txt += '        memcpy ((void *)%s, (void *)in_struct->%s, sizeof(%s)*in_struct->%s);\n' % (member.name, member.name, m_type, member.len) | 
|  | construct_txt += '    }\n' | 
|  | destruct_txt += '    if (%s)\n' % member.name | 
|  | destruct_txt += '        delete[] %s;\n' % member.name | 
|  | elif member.isstaticarray or member.len is not None: | 
|  | if member.len is None: | 
|  | # Extract length of static array by grabbing val between [] | 
|  | static_array_size = re.match(r"[^[]*\[([^]]*)\]", member.cdecl) | 
|  | construct_txt += '    for (uint32_t i=0; i<%s; ++i) {\n' % static_array_size.group(1) | 
|  | construct_txt += '        %s[i] = in_struct->%s[i];\n' % (member.name, member.name) | 
|  | construct_txt += '    }\n' | 
|  | else: | 
|  | # Init array ptr to NULL | 
|  | default_init_list += '\n    %s(nullptr),' % member.name | 
|  | init_list += '\n    %s(nullptr),' % member.name | 
|  | init_func_txt += '    %s = nullptr;\n' % member.name | 
|  | array_element = 'in_struct->%s[i]' % member.name | 
|  | if member.type in self.structNames: | 
|  | member_index = next((i for i, v in enumerate(self.structMembers) if v[0] == member.type), None) | 
|  | if member_index is not None and self.NeedSafeStruct(self.structMembers[member_index]) == True: | 
|  | array_element = '%s(&in_struct->safe_%s[i])' % (member.type, member.name) | 
|  | construct_txt += '    if (%s && in_struct->%s) {\n' % (member.len, member.name) | 
|  | construct_txt += '        %s = new %s[%s];\n' % (member.name, m_type, member.len) | 
|  | destruct_txt += '    if (%s)\n' % member.name | 
|  | destruct_txt += '        delete[] %s;\n' % member.name | 
|  | construct_txt += '        for (uint32_t i=0; i<%s; ++i) {\n' % (member.len) | 
|  | if 'safe_' in m_type: | 
|  | construct_txt += '            %s[i].initialize(&in_struct->%s[i]);\n' % (member.name, member.name) | 
|  | else: | 
|  | construct_txt += '            %s[i] = %s;\n' % (member.name, array_element) | 
|  | construct_txt += '        }\n' | 
|  | construct_txt += '    }\n' | 
|  | elif member.ispointer == True: | 
|  | construct_txt += '    if (in_struct->%s)\n' % member.name | 
|  | construct_txt += '        %s = new %s(in_struct->%s);\n' % (member.name, m_type, member.name) | 
|  | construct_txt += '    else\n' | 
|  | construct_txt += '        %s = NULL;\n' % member.name | 
|  | destruct_txt += '    if (%s)\n' % member.name | 
|  | destruct_txt += '        delete %s;\n' % member.name | 
|  | elif 'safe_' in m_type: | 
|  | init_list += '\n    %s(&in_struct->%s),' % (member.name, member.name) | 
|  | init_func_txt += '    %s.initialize(&in_struct->%s);\n' % (member.name, member.name) | 
|  | else: | 
|  | init_list += '\n    %s(in_struct->%s),' % (member.name, member.name) | 
|  | init_func_txt += '    %s = in_struct->%s;\n' % (member.name, member.name) | 
|  | if '' != init_list: | 
|  | init_list = init_list[:-1] # hack off final comma | 
|  | if item.name in custom_construct_txt: | 
|  | construct_txt = custom_construct_txt[item.name] | 
|  | if item.name in custom_destruct_txt: | 
|  | destruct_txt = custom_destruct_txt[item.name] | 
|  | safe_struct_body.append("\n%s::%s(const %s* in_struct%s) :%s\n{\n%s}" % (ss_name, ss_name, item.name, self.custom_construct_params.get(item.name, ''), init_list, construct_txt)) | 
|  | if '' != default_init_list: | 
|  | default_init_list = " :%s" % (default_init_list[:-1]) | 
|  | safe_struct_body.append("\n%s::%s()%s\n{}" % (ss_name, ss_name, default_init_list)) | 
|  | # Create slight variation of init and construct txt for copy constructor that takes a src object reference vs. struct ptr | 
|  | copy_construct_init = init_func_txt.replace('in_struct->', 'src.') | 
|  | copy_construct_txt = construct_txt.replace(' (in_struct->', ' (src.')     # Exclude 'if' blocks from next line | 
|  | copy_construct_txt = copy_construct_txt.replace('(in_struct->', '(*src.') # Pass object to copy constructors | 
|  | copy_construct_txt = copy_construct_txt.replace('in_struct->', 'src.')    # Modify remaining struct refs for src object | 
|  | if item.name in custom_copy_txt: | 
|  | copy_construct_txt = custom_copy_txt[item.name] | 
|  | copy_assign_txt = '    if (&src == this) return *this;\n\n' + destruct_txt + '\n' + copy_construct_init + copy_construct_txt + '\n    return *this;' | 
|  | safe_struct_body.append("\n%s::%s(const %s& src)\n{\n%s%s}" % (ss_name, ss_name, ss_name, copy_construct_init, copy_construct_txt)) # Copy constructor | 
|  | safe_struct_body.append("\n%s& %s::operator=(const %s& src)\n{\n%s\n}" % (ss_name, ss_name, ss_name, copy_assign_txt)) # Copy assignment operator | 
|  | safe_struct_body.append("\n%s::~%s()\n{\n%s}" % (ss_name, ss_name, destruct_txt)) | 
|  | safe_struct_body.append("\nvoid %s::initialize(const %s* in_struct%s)\n{\n%s%s}" % (ss_name, item.name, self.custom_construct_params.get(item.name, ''), init_func_txt, construct_txt)) | 
|  | # Copy initializer uses same txt as copy constructor but has a ptr and not a reference | 
|  | init_copy = copy_construct_init.replace('src.', 'src->') | 
|  | init_construct = copy_construct_txt.replace('src.', 'src->') | 
|  | safe_struct_body.append("\nvoid %s::initialize(const %s* src)\n{\n%s%s}" % (ss_name, ss_name, init_copy, init_construct)) | 
|  | if item.ifdef_protect != None: | 
|  | safe_struct_body.append("#endif // %s\n" % item.ifdef_protect) | 
|  | return "\n".join(safe_struct_body) | 
|  | # | 
|  | # Generate the type map | 
|  | def GenerateTypeMapHelperHeader(self): | 
|  | prefix = 'Lvl' | 
|  | fprefix = 'lvl_' | 
|  | typemap = prefix + 'TypeMap' | 
|  | idmap = prefix + 'STypeMap' | 
|  | type_member = 'Type' | 
|  | id_member = 'kSType' | 
|  | id_decl = 'static const VkStructureType ' | 
|  | generic_header = prefix + 'GenericHeader' | 
|  | typename_func = fprefix + 'typename' | 
|  | idname_func = fprefix + 'stype_name' | 
|  | find_func = fprefix + 'find_in_chain' | 
|  |  | 
|  | explanatory_comment = '\n'.join(( | 
|  | '// These empty generic templates are specialized for each type with sType', | 
|  | '// members and for each sType -- providing a two way map between structure', | 
|  | '// types and sTypes')) | 
|  |  | 
|  | empty_typemap = 'template <typename T> struct ' + typemap + ' {};' | 
|  | typemap_format  = 'template <> struct {template}<{typename}> {{\n' | 
|  | typemap_format += '    {id_decl}{id_member} = {id_value};\n' | 
|  | typemap_format += '}};\n' | 
|  |  | 
|  | empty_idmap = 'template <VkStructureType id> struct ' + idmap + ' {};' | 
|  | idmap_format = ''.join(( | 
|  | 'template <> struct {template}<{id_value}> {{\n', | 
|  | '    typedef {typename} {typedef};\n', | 
|  | '}};\n')) | 
|  |  | 
|  | # Define the utilities (here so any renaming stays consistent), if this grows large, refactor to a fixed .h file | 
|  | utilities_format = '\n'.join(( | 
|  | '// Header "base class" for pNext chain traversal', | 
|  | 'struct {header} {{', | 
|  | '   VkStructureType sType;', | 
|  | '   const {header} *pNext;', | 
|  | '}};', | 
|  | '', | 
|  | '// Find an entry of the given type in the pNext chain', | 
|  | 'template <typename T> const T *{find_func}(const void *next) {{', | 
|  | '    const {header} *current = reinterpret_cast<const {header} *>(next);', | 
|  | '    const T *found = nullptr;', | 
|  | '    while (current) {{', | 
|  | '        if ({type_map}<T>::{id_member} == current->sType) {{', | 
|  | '            found = reinterpret_cast<const T*>(current);', | 
|  | '            current = nullptr;', | 
|  | '        }} else {{', | 
|  | '            current = current->pNext;', | 
|  | '        }}', | 
|  | '    }}', | 
|  | '    return found;', | 
|  | '}}', | 
|  | '')) | 
|  |  | 
|  | code = [] | 
|  | code.append('\n'.join(( | 
|  | '#pragma once', | 
|  | '#include <vulkan/vulkan.h>\n', | 
|  | explanatory_comment, '', | 
|  | empty_idmap, | 
|  | empty_typemap, '', | 
|  | utilities_format.format(id_member=id_member, id_map=idmap, type_map=typemap, | 
|  | type_member=type_member, header=generic_header, typename_func=typename_func, idname_func=idname_func, | 
|  | find_func=find_func), '' | 
|  | ))) | 
|  |  | 
|  | # Generate the specializations for each type and stype | 
|  |  | 
|  | for item in self.structMembers: | 
|  | typename = item.name | 
|  | info = self.structTypes.get(typename) | 
|  | if not info: | 
|  | continue | 
|  |  | 
|  | if item.ifdef_protect != None: | 
|  | code.append('#ifdef %s' % item.ifdef_protect) | 
|  |  | 
|  | code.append('// Map type {} to id {}'.format(typename, info.value)) | 
|  | code.append(typemap_format.format(template=typemap, typename=typename, id_value=info.value, | 
|  | id_decl=id_decl, id_member=id_member)) | 
|  | code.append(idmap_format.format(template=idmap, typename=typename, id_value=info.value, typedef=type_member)) | 
|  |  | 
|  | if item.ifdef_protect != None: | 
|  | code.append('#endif // %s' % item.ifdef_protect) | 
|  |  | 
|  | return "\n".join(code) | 
|  |  | 
|  | # | 
|  | # Create a helper file and return it as a string | 
|  | def OutputDestFile(self): | 
|  | if self.helper_file_type == 'enum_string_header': | 
|  | return self.GenerateEnumStringHelperHeader() | 
|  | elif self.helper_file_type == 'struct_size_header': | 
|  | return self.GenerateStructSizeHelperHeader() | 
|  | elif self.helper_file_type == 'struct_size_source': | 
|  | return self.GenerateStructSizeHelperSource() | 
|  | elif self.helper_file_type == 'safe_struct_header': | 
|  | return self.GenerateSafeStructHelperHeader() | 
|  | elif self.helper_file_type == 'safe_struct_source': | 
|  | return self.GenerateSafeStructHelperSource() | 
|  | elif self.helper_file_type == 'object_types_header': | 
|  | return self.GenerateObjectTypesHelperHeader() | 
|  | elif self.helper_file_type == 'extension_helper_header': | 
|  | return self.GenerateExtensionHelperHeader() | 
|  | elif self.helper_file_type == 'typemap_helper_header': | 
|  | return self.GenerateTypeMapHelperHeader() | 
|  | else: | 
|  | return 'Bad Helper File Generator Option %s' % self.helper_file_type | 
|  |  |