184 lines
7.1 KiB
Python
184 lines
7.1 KiB
Python
#!/usr/bin/python3 -i
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#
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# Copyright (c) 2013-2018 The Khronos Group Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os,re,sys
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from generator import *
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# ExtensionMetaDocGeneratorOptions - subclass of GeneratorOptions.
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class ExtensionMetaDocGeneratorOptions(GeneratorOptions):
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"""Represents options during extension metainformation generation for Asciidoc"""
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def __init__(self,
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filename = None,
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directory = '.',
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apiname = None,
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profile = None,
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versions = '.*',
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emitversions = '.*',
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defaultExtensions = None,
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addExtensions = None,
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removeExtensions = None,
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emitExtensions = None,
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sortProcedure = regSortFeatures):
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GeneratorOptions.__init__(self, filename, directory, apiname, profile,
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versions, emitversions, defaultExtensions,
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addExtensions, removeExtensions,
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emitExtensions, sortProcedure)
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# ExtensionMetaDocOutputGenerator - subclass of OutputGenerator.
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# Generates AsciiDoc includes with metainformation for the Vulkan extension
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# appendices. The fields used from <extension> tags in vk.xml are:
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#
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# name extension name string
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# number extension number (optional)
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# type 'instance' | 'device' (optional)
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# requires list of comma-separate requires Vulkan extensions (optional)
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# contact name and github login or email address (optional)
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#
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# ---- methods ----
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# ExtensionMetaDocOutputGenerator(errFile, warnFile, diagFile) - args as for
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# OutputGenerator. Defines additional internal state.
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# ---- methods overriding base class ----
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# beginFile(genOpts)
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# endFile()
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# beginFeature(interface, emit)
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# endFeature()
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class ExtensionMetaDocOutputGenerator(OutputGenerator):
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"""Generate specified API interfaces in a specific style, such as a C header"""
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def __init__(self,
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errFile = sys.stderr,
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warnFile = sys.stderr,
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diagFile = sys.stdout):
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OutputGenerator.__init__(self, errFile, warnFile, diagFile)
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#
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def beginFile(self, genOpts):
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OutputGenerator.beginFile(self, genOpts)
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def endFile(self):
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OutputGenerator.endFile(self)
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def beginFeature(self, interface, emit):
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# Start processing in superclass
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OutputGenerator.beginFeature(self, interface, emit)
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# These attributes must exist
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name = interface.get('name')
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if interface.tag != 'extension':
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self.logMsg('diag',
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'beginFeature: ignoring non-extension feature',
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name)
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return
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# These attributes are optional
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number = self.getAttrib(interface, 'number', 'UNKNOWN')
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type = self.getAttrib(interface, 'type', None)
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requires = self.getAttrib(interface, 'requires', None)
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contact = self.getAttrib(interface, 'contact', 'UNKNOWN')
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revision = self.getSpecVersion(interface, name, 'UNKNOWN')
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# Create subdirectory, if needed
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directory = self.genOpts.directory
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self.makeDir(directory)
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# Create file
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filename = directory + '/' + name + '.txt'
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self.logMsg('diag', '# Generating include file:', filename)
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fp = open(filename, 'w', encoding='utf-8')
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# Asciidoc anchor
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write('// WARNING: DO NOT MODIFY! This file is automatically generated from the vk.xml registry', file=fp)
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write('[[' + name + ']]', file=fp)
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write('== ' + name, file=fp)
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write('', file=fp)
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write('*Name String*::', file=fp)
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write(' `' + name + '`', file=fp)
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write('*Extension Type*::', file=fp)
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if type == 'instance':
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write(' Instance extension', file=fp)
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elif type == 'device':
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write(' Device extension', file=fp)
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elif type != None:
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write(' UNRECOGNIZED extension type: ' + type, file=fp)
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else:
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self.logMsg('warn',
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'ExtensionMetaInformation::beginFeature:',
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'required type attribute missing for extension',
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name)
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write(' UNKNOWN extension type (*this should never happen*)', file=fp)
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write('*Registered Extension Number*::', file=fp)
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write(' ' + number, file=fp)
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write('*Revision*::', file=fp)
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write(' ' + revision, file=fp)
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# @@ Need to determine *Revision*:: number from enum attributes
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# Only Vulkan extension dependencies are coded in XML, others are explicit
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write('*Extension and Version Dependencies*::', file=fp)
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write(' - Requires Vulkan 1.0', file=fp)
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if requires != None:
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for dep in requires.split(','):
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write(' - Requires `<<' + dep + '>>`', file=fp)
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write('*Contact*::', file=fp)
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write(' - ' + contact, file=fp)
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fp.close()
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def endFeature(self):
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# Finish processing in superclass
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OutputGenerator.endFeature(self)
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#
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# Query an attribute from an element, or return a default value
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# elem - element to query
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# attribute - attribute name
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# default - default value if attribute not present
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def getAttrib(self, elem, attribute, default=None):
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if attribute in elem.keys():
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return elem.get(attribute)
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else:
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return default
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#
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# Determine the extension revision from the EXTENSION_NAME_SPEC_VERSION
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# enumerant.
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#
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# elem - <extension> element to query
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# extname - extension name from the <extension> 'name' attribute
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# default - default value if SPEC_VERSION token not present
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def getSpecVersion(self, elem, extname, default=None):
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# The literal enumerant name to match
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enumName = extname.upper() + '_SPEC_VERSION'
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# A possible revision number if no literal match is found
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specVersion = 'UNKNOWN'
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for enum in elem.findall('.//enum'):
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thisName = enum.get('name')
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thisValue = self.getAttrib(enum, 'value', 'UNKNOWN')
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if thisName == enumName:
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# Exact match
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specVersion = thisValue
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break
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elif thisName[-13:] == '_SPEC_VERSION':
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self.logMsg('diag',
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'Potential name mismatch between extension',
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extname, 'and version token', thisName)
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specVersion = thisValue
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# Otherwise, ignore the enum
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if specVersion == 'UNKNOWN':
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print('UNKNOWN SPEC_VERSION for', extname)
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return specVersion
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