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Location: alysbrooks-public/games/isometric-park-fna/FNA/lib/FNA3D/Vulkan-Headers/registry/cgenerator.py - annotation

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Add missing component and message.
Commit Description:
Add missing component and message.
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FNA/lib/FNA3D/Vulkan-Headers/registry/cgenerator.py
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Upgrade FNA to 22.12...
 r690 #!/usr/bin/python3 -i
#
# Copyright (c) 2013-2020 The Khronos Group Inc.
#
# SPDX-License-Identifier: Apache-2.0
import os
import re
from generator import (GeneratorOptions, OutputGenerator, noneStr,
regSortFeatures, write)
class CGeneratorOptions(GeneratorOptions):
"""CGeneratorOptions - subclass of GeneratorOptions.
Adds options used by COutputGenerator objects during C language header
generation."""
def __init__(self,
prefixText="",
genFuncPointers=True,
protectFile=True,
protectFeature=True,
protectProto=None,
protectProtoStr=None,
apicall='',
apientry='',
apientryp='',
indentFuncProto=True,
indentFuncPointer=False,
alignFuncParam=0,
genEnumBeginEndRange=False,
genAliasMacro=False,
aliasMacro='',
**kwargs
):
"""Constructor.
Additional parameters beyond parent class:
- 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
- genEnumBeginEndRange - True if BEGIN_RANGE / END_RANGE macros should
be generated for enumerated types
- genAliasMacro - True if the OpenXR alias macro should be generated
for aliased types (unclear what other circumstances this is useful)
- aliasMacro - alias macro to inject when genAliasMacro is True"""
GeneratorOptions.__init__(self, **kwargs)
self.prefixText = prefixText
"""list of strings to prefix generated header with (usually a copyright statement + calling convention macros)."""
self.genFuncPointers = genFuncPointers
"""True if function pointer typedefs should be generated"""
self.protectFile = protectFile
"""True if multiple inclusion protection should be generated (based on the filename) around the entire header."""
self.protectFeature = protectFeature
"""True if #ifndef..#endif protection should be generated around a feature interface in the header file."""
self.protectProto = 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."""
self.protectProtoStr = protectProtoStr
"""#ifdef/#ifndef symbol to use around prototype declarations, if protectProto is set"""
self.apicall = apicall
"""string to use for the function declaration prefix, such as APICALL on Windows."""
self.apientry = apientry
"""string to use for the calling convention macro, in typedefs, such as APIENTRY."""
self.apientryp = apientryp
"""string to use for the calling convention macro in function pointer typedefs, such as APIENTRYP."""
self.indentFuncProto = indentFuncProto
"""True if prototype declarations should put each parameter on a separate line"""
self.indentFuncPointer = indentFuncPointer
"""True if typedefed function pointers should put each parameter on a separate line"""
self.alignFuncParam = alignFuncParam
"""if nonzero and parameters are being put on a separate line, align parameter names at the specified column"""
self.genEnumBeginEndRange = genEnumBeginEndRange
"""True if BEGIN_RANGE / END_RANGE macros should be generated for enumerated types"""
self.genAliasMacro = genAliasMacro
"""True if the OpenXR alias macro should be generated for aliased types (unclear what other circumstances this is useful)"""
self.aliasMacro = aliasMacro
"""alias macro to inject when genAliasMacro is True"""
self.codeGenerator = True
"""True if this generator makes compilable code"""
class COutputGenerator(OutputGenerator):
"""Generates C-language API interfaces."""
# This is an ordered list of sections in the header file.
TYPE_SECTIONS = ['include', 'define', 'basetype', 'handle', 'enum',
'group', 'bitmask', 'funcpointer', 'struct']
ALL_SECTIONS = TYPE_SECTIONS + ['commandPointer', 'command']
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
# Internal state - accumulators for different inner block text
self.sections = {section: [] for section in self.ALL_SECTIONS}
self.feature_not_empty = False
self.may_alias = None
def beginFile(self, genOpts):
OutputGenerator.beginFile(self, genOpts)
# C-specific
#
# Multiple inclusion protection & C++ wrappers.
if genOpts.protectFile and self.genOpts.filename:
headerSym = re.sub(r'\.h', '_h_',
os.path.basename(self.genOpts.filename)).upper()
write('#ifndef', headerSym, file=self.outFile)
write('#define', headerSym, '1', file=self.outFile)
self.newline()
# User-supplied prefix text, if any (list of strings)
if genOpts.prefixText:
for s in genOpts.prefixText:
write(s, file=self.outFile)
# C++ extern wrapper - after prefix lines so they can add includes.
self.newline()
write('#ifdef __cplusplus', file=self.outFile)
write('extern "C" {', file=self.outFile)
write('#endif', file=self.outFile)
self.newline()
def endFile(self):
# C-specific
# Finish C++ wrapper and multiple inclusion protection
self.newline()
write('#ifdef __cplusplus', file=self.outFile)
write('}', file=self.outFile)
write('#endif', file=self.outFile)
if self.genOpts.protectFile and self.genOpts.filename:
self.newline()
write('#endif', file=self.outFile)
# Finish processing in superclass
OutputGenerator.endFile(self)
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.sections = {section: [] for section in self.ALL_SECTIONS}
self.feature_not_empty = False
def endFeature(self):
"Actually write the interface to the output file."
# C-specific
if self.emit:
if self.feature_not_empty:
if self.genOpts.conventions.writeFeature(self.featureExtraProtect, self.genOpts.filename):
self.newline()
if self.genOpts.protectFeature:
write('#ifndef', self.featureName, file=self.outFile)
# 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.
if self.featureExtraProtect is not None:
write('#ifdef', self.featureExtraProtect, file=self.outFile)
self.newline()
write('#define', self.featureName, '1', file=self.outFile)
for section in self.TYPE_SECTIONS:
contents = self.sections[section]
if contents:
write('\n'.join(contents), file=self.outFile)
if self.genOpts.genFuncPointers and self.sections['commandPointer']:
write('\n'.join(self.sections['commandPointer']), file=self.outFile)
self.newline()
if self.sections['command']:
if self.genOpts.protectProto:
write(self.genOpts.protectProto,
self.genOpts.protectProtoStr, file=self.outFile)
write('\n'.join(self.sections['command']), end='', file=self.outFile)
if self.genOpts.protectProto:
write('#endif', file=self.outFile)
else:
self.newline()
if self.featureExtraProtect is not None:
write('#endif /*', self.featureExtraProtect, '*/', file=self.outFile)
if self.genOpts.protectFeature:
write('#endif /*', self.featureName, '*/', file=self.outFile)
# Finish processing in superclass
OutputGenerator.endFeature(self)
def appendSection(self, section, text):
"Append a definition to the specified section"
# self.sections[section].append('SECTION: ' + section + '\n')
self.sections[section].append(text)
self.feature_not_empty = True
def genType(self, typeinfo, name, alias):
"Generate type."
OutputGenerator.genType(self, typeinfo, name, alias)
typeElem = typeinfo.elem
# Vulkan:
# Determine the category of the type, and the type section to add
# its definition to.
# 'funcpointer' is added to the 'struct' section as a workaround for
# internal issue #877, since structures and function pointer types
# can have cross-dependencies.
category = typeElem.get('category')
if category == 'funcpointer':
section = 'struct'
else:
section = category
if category in ('struct', 'union'):
# If the type is a struct type, generate it using the
# special-purpose generator.
self.genStruct(typeinfo, name, alias)
else:
# OpenXR: this section was not under 'else:' previously, just fell through
if alias:
# If the type is an alias, just emit a typedef declaration
body = 'typedef ' + alias + ' ' + name + ';\n'
else:
# Replace <apientry /> tags with an APIENTRY-style string
# (from self.genOpts). Copy other text through unchanged.
# If the resulting text is an empty string, don't emit it.
body = noneStr(typeElem.text)
for elem in typeElem:
if elem.tag == 'apientry':
body += self.genOpts.apientry + noneStr(elem.tail)
else:
body += noneStr(elem.text) + noneStr(elem.tail)
if body:
# Add extra newline after multi-line entries.
if '\n' in body[0:-1]:
body += '\n'
self.appendSection(section, body)
def genProtectString(self, protect_str):
"""Generate protection string.
Protection strings are the strings defining the OS/Platform/Graphics
requirements for a given OpenXR command. When generating the
language header files, we need to make sure the items specific to a
graphics API or OS platform are properly wrapped in #ifs."""
protect_if_str = ''
protect_end_str = ''
if not protect_str:
return (protect_if_str, protect_end_str)
if ',' in protect_str:
protect_list = protect_str.split(",")
protect_defs = ('defined(%s)' % d for d in protect_list)
protect_def_str = ' && '.join(protect_defs)
protect_if_str = '#if %s\n' % protect_def_str
protect_end_str = '#endif // %s\n' % protect_def_str
else:
protect_if_str = '#ifdef %s\n' % protect_str
protect_end_str = '#endif // %s\n' % protect_str
return (protect_if_str, protect_end_str)
def typeMayAlias(self, typeName):
if not self.may_alias:
# First time we've asked if a type may alias.
# So, let's populate the set of all names of types that may.
# Everyone with an explicit mayalias="true"
self.may_alias = set(typeName
for typeName, data in self.registry.typedict.items()
if data.elem.get('mayalias') == 'true')
# Every type mentioned in some other type's parentstruct attribute.
parent_structs = (otherType.elem.get('parentstruct')
for otherType in self.registry.typedict.values())
self.may_alias.update(set(x for x in parent_structs
if x is not None))
return typeName in self.may_alias
def genStruct(self, typeinfo, typeName, alias):
"""Generate struct (e.g. C "struct" type).
This is a special case of the <type> tag where the contents are
interpreted as a set of <member> tags instead of freeform C
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.)
If alias is not None, then this struct aliases another; just
generate a typedef of that alias."""
OutputGenerator.genStruct(self, typeinfo, typeName, alias)
typeElem = typeinfo.elem
if alias:
body = 'typedef ' + alias + ' ' + typeName + ';\n'
else:
body = ''
(protect_begin, protect_end) = self.genProtectString(typeElem.get('protect'))
if protect_begin:
body += protect_begin
body += 'typedef ' + typeElem.get('category')
# This is an OpenXR-specific alternative where aliasing refers
# to an inheritance hierarchy of types rather than C-level type
# aliases.
if self.genOpts.genAliasMacro and self.typeMayAlias(typeName):
body += ' ' + self.genOpts.aliasMacro
body += ' ' + typeName + ' {\n'
targetLen = self.getMaxCParamTypeLength(typeinfo)
for member in typeElem.findall('.//member'):
body += self.makeCParamDecl(member, targetLen + 4)
body += ';\n'
body += '} ' + typeName + ';\n'
if protect_end:
body += protect_end
self.appendSection('struct', body)
def genGroup(self, groupinfo, groupName, alias=None):
"""Generate groups (e.g. C "enum" type).
These are concatenated together with other types.
If alias is not None, it is the name of another group type
which aliases this type; just generate that alias."""
OutputGenerator.genGroup(self, groupinfo, groupName, alias)
groupElem = groupinfo.elem
# After either enumerated type or alias paths, add the declaration
# to the appropriate section for the group being defined.
if groupElem.get('type') == 'bitmask':
section = 'bitmask'
else:
section = 'group'
if alias:
# If the group name is aliased, just emit a typedef declaration
# for the alias.
body = 'typedef ' + alias + ' ' + groupName + ';\n'
self.appendSection(section, body)
else:
(section, body) = self.buildEnumCDecl(self.genOpts.genEnumBeginEndRange, groupinfo, groupName)
self.appendSection(section, "\n" + body)
def genEnum(self, enuminfo, name, alias):
"""Generate enumerants.
<enum> tags may specify their values in several ways, but are usually
just integers."""
OutputGenerator.genEnum(self, enuminfo, name, alias)
(_, strVal) = self.enumToValue(enuminfo.elem, False)
body = '#define ' + name.ljust(33) + ' ' + strVal
self.appendSection('enum', body)
def genCmd(self, cmdinfo, name, alias):
"Command generation"
OutputGenerator.genCmd(self, cmdinfo, name, alias)
# if alias:
# prefix = '// ' + name + ' is an alias of command ' + alias + '\n'
# else:
# prefix = ''
prefix = ''
decls = self.makeCDecls(cmdinfo.elem)
self.appendSection('command', prefix + decls[0] + '\n')
if self.genOpts.genFuncPointers:
self.appendSection('commandPointer', decls[1])