mirror of
https://github.com/ZDoom/zdoom-macos-deps.git
synced 2024-12-13 05:40:48 +00:00
518 lines
23 KiB
Python
518 lines
23 KiB
Python
#!/usr/bin/env python3 -i
|
|
#
|
|
# Copyright 2013-2024 The Khronos Group Inc.
|
|
#
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
|
|
import os
|
|
import re
|
|
|
|
from generator import (GeneratorOptions,
|
|
MissingGeneratorOptionsConventionsError,
|
|
MissingGeneratorOptionsError, MissingRegistryError,
|
|
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,
|
|
protectExtensionProto=None,
|
|
protectExtensionProtoStr=None,
|
|
apicall='',
|
|
apientry='',
|
|
apientryp='',
|
|
indentFuncProto=True,
|
|
indentFuncPointer=False,
|
|
alignFuncParam=0,
|
|
genEnumBeginEndRange=False,
|
|
genAliasMacro=False,
|
|
genStructExtendsComment=False,
|
|
aliasMacro='',
|
|
misracstyle=False,
|
|
misracppstyle=False,
|
|
**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
|
|
- protectExtensionProto - If conditional protection should be generated
|
|
around extension prototype declarations, set to either '#ifdef'
|
|
to require opt-in (#ifdef protectExtensionProtoStr) or '#ifndef'
|
|
to require opt-out (#ifndef protectExtensionProtoStr). Otherwise
|
|
set to None
|
|
- protectExtensionProtoStr - #ifdef/#ifndef symbol to use around
|
|
extension prototype declarations, if protectExtensionProto 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)
|
|
- genStructExtendsComment - True if comments showing the structures
|
|
whose pNext chain a structure extends are included before its
|
|
definition
|
|
- aliasMacro - alias macro to inject when genAliasMacro is True
|
|
- misracstyle - generate MISRA C-friendly headers
|
|
- misracppstyle - generate MISRA C++-friendly headers"""
|
|
|
|
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.protectExtensionProto = protectExtensionProto
|
|
"""If conditional protection should be generated around extension prototype declarations, set to either '#ifdef' to require opt-in (#ifdef protectExtensionProtoStr) or '#ifndef' to require opt-out (#ifndef protectExtensionProtoStr). Otherwise set to None."""
|
|
|
|
self.protectExtensionProtoStr = protectExtensionProtoStr
|
|
"""#ifdef/#ifndef symbol to use around extension prototype declarations, if protectExtensionProto 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.genStructExtendsComment = genStructExtendsComment
|
|
"""True if comments showing the structures whose pNext chain a structure extends are included before its definition"""
|
|
|
|
self.aliasMacro = aliasMacro
|
|
"""alias macro to inject when genAliasMacro is True"""
|
|
|
|
self.misracstyle = misracstyle
|
|
"""generate MISRA C-friendly headers"""
|
|
|
|
self.misracppstyle = misracppstyle
|
|
"""generate MISRA C++-friendly headers"""
|
|
|
|
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)
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
# C-specific
|
|
#
|
|
# Multiple inclusion protection & C++ wrappers.
|
|
if self.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
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
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 are only
|
|
# printed in endFeature().
|
|
self.sections = {section: [] for section in self.ALL_SECTIONS}
|
|
self.feature_not_empty = False
|
|
|
|
def _endProtectComment(self, protect_str, protect_directive='#ifdef'):
|
|
if protect_directive is None or protect_str is None:
|
|
raise RuntimeError('Should not call in here without something to protect')
|
|
|
|
# Do not put comments after #endif closing blocks if this is not set
|
|
if not self.genOpts.conventions.protectProtoComment:
|
|
return ''
|
|
elif 'ifdef' in protect_directive:
|
|
return f' /* {protect_str} */'
|
|
else:
|
|
return f' /* !{protect_str} */'
|
|
|
|
def endFeature(self):
|
|
"Actually write the interface to the output file."
|
|
# C-specific
|
|
if self.emit:
|
|
if self.feature_not_empty:
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
if self.genOpts.conventions is None:
|
|
raise MissingGeneratorOptionsConventionsError()
|
|
is_core = self.featureName and self.featureName.startswith(self.conventions.api_prefix + 'VERSION_')
|
|
if self.genOpts.conventions.writeFeature(self.featureName, 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()
|
|
|
|
# Generate warning of possible use in IDEs
|
|
write(f'// {self.featureName} is a preprocessor guard. Do not pass it to API calls.', file=self.outFile)
|
|
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)
|
|
if self.genOpts.protectExtensionProto and not is_core:
|
|
write(self.genOpts.protectExtensionProto,
|
|
self.genOpts.protectExtensionProtoStr, file=self.outFile)
|
|
write('\n'.join(self.sections['command']), end='', file=self.outFile)
|
|
if self.genOpts.protectExtensionProto and not is_core:
|
|
write('#endif' +
|
|
self._endProtectComment(protect_directive=self.genOpts.protectExtensionProto,
|
|
protect_str=self.genOpts.protectExtensionProtoStr),
|
|
file=self.outFile)
|
|
if self.genOpts.protectProto:
|
|
write('#endif' +
|
|
self._endProtectComment(protect_directive=self.genOpts.protectProto,
|
|
protect_str=self.genOpts.protectProtoStr),
|
|
file=self.outFile)
|
|
else:
|
|
self.newline()
|
|
|
|
if self.featureExtraProtect is not None:
|
|
write('#endif' +
|
|
self._endProtectComment(protect_str=self.featureExtraProtect),
|
|
file=self.outFile)
|
|
|
|
if self.genOpts.protectFeature:
|
|
write('#endif' +
|
|
self._endProtectComment(protect_str=self.featureName),
|
|
file=self.outFile)
|
|
# Finish processing in superclass
|
|
OutputGenerator.endFeature(self)
|
|
|
|
def appendSection(self, section, text):
|
|
"Append a definition to the specified section"
|
|
|
|
if section is None:
|
|
self.logMsg('error', 'Missing section in appendSection (probably a <type> element missing its \'category\' attribute. Text:', text)
|
|
exit(1)
|
|
|
|
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:
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
|
|
body = self.deprecationComment(typeElem)
|
|
|
|
# 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, do not 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 category == 'define' and self.misracppstyle():
|
|
body = body.replace("(uint32_t)", "static_cast<uint32_t>")
|
|
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 API 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:
|
|
if self.registry is None:
|
|
raise MissingRegistryError()
|
|
# First time we have asked if a type may alias.
|
|
# So, 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.
|
|
polymorphic_bases = (otherType.elem.get('parentstruct')
|
|
for otherType in self.registry.typedict.values())
|
|
self.may_alias.update(set(x for x in polymorphic_bases
|
|
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)
|
|
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
|
|
typeElem = typeinfo.elem
|
|
body = self.deprecationComment(typeElem)
|
|
|
|
if alias:
|
|
body += 'typedef ' + alias + ' ' + typeName + ';\n'
|
|
else:
|
|
(protect_begin, protect_end) = self.genProtectString(typeElem.get('protect'))
|
|
if protect_begin:
|
|
body += protect_begin
|
|
|
|
if self.genOpts.genStructExtendsComment:
|
|
structextends = typeElem.get('structextends')
|
|
body += '// ' + typeName + ' extends ' + structextends + '\n' if structextends else ''
|
|
|
|
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.deprecationComment(member, indent = 4)
|
|
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:
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
(section, body) = self.buildEnumCDecl(self.genOpts.genEnumBeginEndRange, groupinfo, groupName)
|
|
self.appendSection(section, '\n' + body)
|
|
|
|
def genEnum(self, enuminfo, name, alias):
|
|
"""Generate the C declaration for a constant (a single <enum> value).
|
|
|
|
<enum> tags may specify their values in several ways, but are usually
|
|
just integers."""
|
|
|
|
OutputGenerator.genEnum(self, enuminfo, name, alias)
|
|
|
|
body = self.deprecationComment(enuminfo.elem)
|
|
body += self.buildConstantCDecl(enuminfo, name, alias)
|
|
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 = ''
|
|
if self.genOpts is None:
|
|
raise MissingGeneratorOptionsError()
|
|
|
|
prefix = ''
|
|
decls = self.makeCDecls(cmdinfo.elem)
|
|
self.appendSection('command', prefix + decls[0] + '\n')
|
|
if self.genOpts.genFuncPointers:
|
|
self.appendSection('commandPointer', decls[1])
|
|
|
|
def misracstyle(self):
|
|
return self.genOpts.misracstyle
|
|
|
|
def misracppstyle(self):
|
|
return self.genOpts.misracppstyle
|