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third_party_vulkan-loader/scripts/helper_file_generator.py
andrew0229 0281b281d0 update to v1.3.275 
Signed-off-by: andrew0229 <zhangzhao62@huawei.com>
Change-Id: Ifc4224db2c6ea7c159d3cabe8f075475d47a41a8
2024-05-21 08:09:09 +00:00

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Python
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#!/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 <mark@lunarg.com>
# Author: Tobin Ehlis <tobine@google.com>
# Author: John Zulauf <jzulauf@lunarg.com>
import os,re,sys
import xml.etree.ElementTree as etree
from generator import *
from collections import namedtuple
from common_codegen import *
#
# HelperFileOutputGeneratorOptions - subclass of GeneratorOptions.
class HelperFileOutputGeneratorOptions(GeneratorOptions):
def __init__(self,
conventions = None,
filename = None,
directory = '.',
genpath = None,
apiname = None,
profile = None,
versions = '.*',
emitversions = '.*',
defaultExtensions = None,
addExtensions = None,
removeExtensions = None,
emitExtensions = None,
sortProcedure = regSortFeatures,
prefixText = "",
genFuncPointers = True,
protectFile = True,
protectFeature = True,
apicall = '',
apientry = '',
apientryp = '',
alignFuncParam = 0,
library_name = '',
expandEnumerants = True,
helper_file_type = ''):
GeneratorOptions.__init__(self,
conventions = conventions,
filename = filename,
directory = directory,
genpath = genpath,
apiname = apiname,
profile = profile,
versions = versions,
emitversions = emitversions,
defaultExtensions = defaultExtensions,
addExtensions = addExtensions,
removeExtensions = removeExtensions,
emitExtensions = emitExtensions,
sortProcedure = sortProcedure)
self.prefixText = prefixText
self.genFuncPointers = genFuncPointers
self.protectFile = protectFile
self.protectFeature = protectFeature
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
# 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.object_type_aliases = [] # Aliases to handles types (for handles that were extensions)
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
write("// clang-format off", file=self.outFile)
# 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 <mark@lunarg.com>\n'
copyright += ' * Author: Courtney Goeltzenleuchter <courtneygo@google.com>\n'
copyright += ' * Author: Tobin Ehlis <tobine@google.com>\n'
copyright += ' * Author: Chris Forbes <chrisforbes@google.com>\n'
copyright += ' * Author: John Zulauf<jzulauf@lunarg.com>\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)
write("// clang-format on", 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)
self.featureExtraProtect = GetFeatureProtect(interface)
if interface.tag != 'extension':
return
name = self.featureName
name_define = next(enum.get('name') for enum in interface.findall('require/enum') if enum.get('name').endswith('_EXTENSION_NAME'))
requires = interface.get('requires')
if requires is not None:
required_extensions = requires.split(',')
else:
required_extensions = list()
info = { 'define': name_define, 'ifdef':self.featureExtraProtect, 'reqs':required_extensions }
if interface.get('type') == 'instance':
self.instance_extension_info[name] = info
else:
self.device_extension_info[name] = info
#
# 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, alias):
OutputGenerator.genGroup(self, groupinfo, groupName, alias)
groupElem = groupinfo.elem
# For enum_string_header
if self.helper_file_type == 'enum_string_header':
value_set = set()
for elem in groupElem.findall('enum'):
if elem.get('supported') != 'disabled' and elem.get('alias') is None:
value_set.add(elem.get('name'))
self.enum_output += self.GenerateEnumStringConversion(groupName, value_set)
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, alias):
OutputGenerator.genType(self, typeinfo, name, alias)
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':
if alias:
self.object_type_aliases.append((name,alias))
else:
self.object_types.append(name)
elif (category == 'struct' or category == 'union'):
self.structNames.append(name)
self.genStruct(typeinfo, name, alias)
#
# 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 != '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)
#
# 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 'altlen' in param.attrib:
# Elements with latexmath 'len' also contain a C equivalent 'altlen' attribute
# Use indexing operator instead of get() so we fail if the attribute is missing
result = param.attrib['altlen']
# 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, alias):
OutputGenerator.genStruct(self, typeinfo, typeName, alias)
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
#
# 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_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 = [];
enum_entry_map = {}
# 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
enum_entry_map[item] = enum_entry
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 += ' // Aliases for backwards compatibilty of "promoted" types\n'
for (name, alias) in self.object_type_aliases:
fixup_name = name[2:]
object_types_header += ' kVulkanObjectType{} = {},\n'.format(fixup_name, enum_entry_map[alias])
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'
# Key creation helper for map comprehensions that convert between k<Name> and VK<Name> symbols
def to_key(regex, raw_key): return re.search(regex, raw_key).group(1).lower().replace("_","")
# Output a conversion routine from the layer object definitions to the debug report definitions
# As the VK_DEBUG_REPORT types are not being updated, specify UNKNOWN for unmatched types
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, // kVulkanObjectTypeUnknown\n'
dbg_re = '^VK_DEBUG_REPORT_OBJECT_TYPE_(.*?)(_EXT)?$'
dbg_map = {to_key(dbg_re, dbg) : dbg for dbg in self.debug_report_object_types}
dbg_default = 'VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT'
for object_type in type_list:
vk_object_type = dbg_map.get(object_type.replace("kVulkanObjectType", "").lower(), dbg_default)
object_types_header += ' %s, // %s\n' % (vk_object_type, object_type)
object_types_header += '};\n'
# Output a conversion routine from the layer object definitions to the core object type definitions
# This will intentionally *fail* for unmatched types as the VK_OBJECT_TYPE list should match the kVulkanObjectType list
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, // kVulkanObjectTypeUnknown\n'
vko_re = '^VK_OBJECT_TYPE_(.*)'
vko_map = {to_key(vko_re, vko) : vko for vko in self.core_object_types}
for object_type in type_list:
vk_object_type = vko_map[object_type.replace("kVulkanObjectType", "").lower()]
object_types_header += ' %s, // %s\n' % (vk_object_type, object_type)
object_types_header += '};\n'
# Create a function to convert from VkDebugReportObjectTypeEXT to VkObjectType
object_types_header += '\n'
object_types_header += '// Helper function to convert from VkDebugReportObjectTypeEXT to VkObjectType\n'
object_types_header += 'static inline VkObjectType convertDebugReportObjectToCoreObject(VkDebugReportObjectTypeEXT debug_report_obj){\n'
object_types_header += ' if (debug_report_obj == VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT) {\n'
object_types_header += ' return VK_OBJECT_TYPE_UNKNOWN;\n'
for core_object_type in self.core_object_types:
core_target_type = core_object_type.replace("VK_OBJECT_TYPE_", "").lower()
core_target_type = core_target_type.replace("_", "")
for dr_object_type in self.debug_report_object_types:
dr_target_type = dr_object_type.replace("VK_DEBUG_REPORT_OBJECT_TYPE_", "").lower()
dr_target_type = dr_target_type[:-4]
dr_target_type = dr_target_type.replace("_", "")
if core_target_type == dr_target_type:
object_types_header += ' } else if (debug_report_obj == %s) {\n' % dr_object_type
object_types_header += ' return %s;\n' % core_object_type
break
object_types_header += ' }\n'
object_types_header += ' return VK_OBJECT_TYPE_UNKNOWN;\n'
object_types_header += '}\n'
# Create a function to convert from VkObjectType to VkDebugReportObjectTypeEXT
object_types_header += '\n'
object_types_header += '// Helper function to convert from VkDebugReportObjectTypeEXT to VkObjectType\n'
object_types_header += 'static inline VkDebugReportObjectTypeEXT convertCoreObjectToDebugReportObject(VkObjectType core_report_obj){\n'
object_types_header += ' if (core_report_obj == VK_OBJECT_TYPE_UNKNOWN) {\n'
object_types_header += ' return VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT;\n'
for core_object_type in self.core_object_types:
core_target_type = core_object_type.replace("VK_OBJECT_TYPE_", "").lower()
core_target_type = core_target_type.replace("_", "")
for dr_object_type in self.debug_report_object_types:
dr_target_type = dr_object_type.replace("VK_DEBUG_REPORT_OBJECT_TYPE_", "").lower()
dr_target_type = dr_target_type[:-4]
dr_target_type = dr_target_type.replace("_", "")
if core_target_type == dr_target_type:
object_types_header += ' } else if (core_report_obj == %s) {\n' % core_object_type
object_types_header += ' return %s;\n' % dr_object_type
break
object_types_header += ' }\n'
object_types_header += ' return VK_DEBUG_REPORT_OBJECT_TYPE_UNKNOWN_EXT;\n'
object_types_header += '}\n'
return object_types_header
#
# Create a helper file and return it as a string
def OutputDestFile(self):
if self.helper_file_type == 'object_types_header':
return self.GenerateObjectTypesHelperHeader()
else:
return 'Bad Helper File Generator Option %s' % self.helper_file_type
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