1122 lines
55 KiB
Python
Executable file
1122 lines
55 KiB
Python
Executable file
#!/usr/bin/python3 -i
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#
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# Copyright (c) 2013-2019 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 copy
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import re
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import sys
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import xml.etree.ElementTree as etree
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from collections import defaultdict, namedtuple
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from generator import OutputGenerator, write
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# matchAPIProfile - returns whether an API and profile
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# being generated matches an element's profile
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# api - string naming the API to match
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# profile - string naming the profile to match
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# elem - Element which (may) have 'api' and 'profile'
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# attributes to match to.
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# If a tag is not present in the Element, the corresponding API
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# or profile always matches.
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# Otherwise, the tag must exactly match the API or profile.
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# Thus, if 'profile' = core:
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# <remove> with no attribute will match
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# <remove profile='core'> will match
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# <remove profile='compatibility'> will not match
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# Possible match conditions:
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# Requested Element
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# Profile Profile
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# --------- --------
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# None None Always matches
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# 'string' None Always matches
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# None 'string' Does not match. Can't generate multiple APIs
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# or profiles, so if an API/profile constraint
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# is present, it must be asked for explicitly.
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# 'string' 'string' Strings must match
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#
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# ** In the future, we will allow regexes for the attributes,
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# not just strings, so that api="^(gl|gles2)" will match. Even
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# this isn't really quite enough, we might prefer something
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# like "gl(core)|gles1(common-lite)".
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def matchAPIProfile(api, profile, elem):
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"""Match a requested API & profile name to a api & profile attributes of an Element"""
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# Match 'api', if present
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elem_api = elem.get('api')
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if elem_api:
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if api is None:
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raise UserWarning("No API requested, but 'api' attribute is present with value '" +
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elem_api + "'")
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elif api != elem_api:
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# Requested API doesn't match attribute
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return False
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elem_profile = elem.get('profile')
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if elem_profile:
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if profile is None:
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raise UserWarning("No profile requested, but 'profile' attribute is present with value '" +
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elem_profile + "'")
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elif profile != elem_profile:
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# Requested profile doesn't match attribute
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return False
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return True
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# BaseInfo - base class for information about a registry feature
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# (type/group/enum/command/API/extension).
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# required - should this feature be defined during header generation
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# (has it been removed by a profile or version)?
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# declared - has this feature been defined already?
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# elem - etree Element for this feature
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# resetState() - reset required/declared to initial values. Used
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# prior to generating a new API interface.
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# compareElem(info) - return True if self.elem and info.elem have the
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# same definition.
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class BaseInfo:
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"""Represents the state of a registry feature, used during API generation"""
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def __init__(self, elem):
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self.required = False
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self.declared = False
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self.elem = elem
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def resetState(self):
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self.required = False
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self.declared = False
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def compareElem(self, info):
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# Just compares the tag and attributes.
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# @@ This should be virtualized. In particular, comparing <enum>
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# tags requires special-casing on the attributes, as 'extnumber' is
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# only relevant when 'offset' is present.
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selfKeys = sorted(self.elem.keys())
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infoKeys = sorted(info.elem.keys())
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if selfKeys != infoKeys:
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return False
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# Ignore value of 'extname' and 'extnumber', as these will inherently
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# be different when redefining the same interface in different feature
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# and/or extension blocks.
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for key in selfKeys:
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if (key != 'extname' and key != 'extnumber' and
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(self.elem.get(key) != info.elem.get(key))):
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return False
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return True
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# TypeInfo - registry information about a type. No additional state
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# beyond BaseInfo is required.
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class TypeInfo(BaseInfo):
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"""Represents the state of a registry type"""
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def __init__(self, elem):
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BaseInfo.__init__(self, elem)
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self.additionalValidity = []
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self.removedValidity = []
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def resetState(self):
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BaseInfo.resetState(self)
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self.additionalValidity = []
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self.removedValidity = []
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# GroupInfo - registry information about a group of related enums
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# in an <enums> block, generally corresponding to a C "enum" type.
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class GroupInfo(BaseInfo):
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"""Represents the state of a registry <enums> group"""
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def __init__(self, elem):
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BaseInfo.__init__(self, elem)
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# EnumInfo - registry information about an enum
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# type - numeric type of the value of the <enum> tag
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# ( '' for GLint, 'u' for GLuint, 'ull' for GLuint64 )
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class EnumInfo(BaseInfo):
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"""Represents the state of a registry enum"""
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def __init__(self, elem):
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BaseInfo.__init__(self, elem)
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self.type = elem.get('type')
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if self.type is None:
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self.type = ''
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# CmdInfo - registry information about a command
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class CmdInfo(BaseInfo):
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"""Represents the state of a registry command"""
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def __init__(self, elem):
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BaseInfo.__init__(self, elem)
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self.additionalValidity = []
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self.removedValidity = []
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def resetState(self):
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BaseInfo.resetState(self)
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self.additionalValidity = []
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self.removedValidity = []
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# FeatureInfo - registry information about an API <feature>
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# or <extension>
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# name - feature name string (e.g. 'VK_KHR_surface')
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# version - feature version number (e.g. 1.2). <extension>
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# features are unversioned and assigned version number 0.
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# ** This is confusingly taken from the 'number' attribute of <feature>.
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# Needs fixing.
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# number - extension number, used for ordering and for
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# assigning enumerant offsets. <feature> features do
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# not have extension numbers and are assigned number 0.
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# category - category, e.g. VERSION or khr/vendor tag
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# emit - has this feature been defined already?
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class FeatureInfo(BaseInfo):
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"""Represents the state of an API feature (version/extension)"""
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def __init__(self, elem):
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BaseInfo.__init__(self, elem)
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self.name = elem.get('name')
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# Determine element category (vendor). Only works
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# for <extension> elements.
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if elem.tag == 'feature':
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self.category = 'VERSION'
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self.version = elem.get('name')
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self.versionNumber = elem.get('number')
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self.number = "0"
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self.supported = None
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else:
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self.category = self.name.split('_', 2)[1]
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self.version = "0"
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self.versionNumber = "0"
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self.number = elem.get('number')
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# If there's no 'number' attribute, use 0, so sorting works
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if self.number is None:
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self.number = 0
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self.supported = elem.get('supported')
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self.emit = False
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# Registry - object representing an API registry, loaded from an XML file
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# Members
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# tree - ElementTree containing the root <registry>
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# typedict - dictionary of TypeInfo objects keyed by type name
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# groupdict - dictionary of GroupInfo objects keyed by group name
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# enumdict - dictionary of EnumInfo objects keyed by enum name
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# cmddict - dictionary of CmdInfo objects keyed by command name
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# apidict - dictionary of <api> Elements keyed by API name
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# extensions - list of <extension> Elements
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# extdict - dictionary of <extension> Elements keyed by extension name
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# gen - OutputGenerator object used to write headers / messages
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# genOpts - GeneratorOptions object used to control which
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# fetures to write and how to format them
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# emitFeatures - True to actually emit features for a version / extension,
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# or False to just treat them as emitted
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# breakPat - regexp pattern to break on when generatng names
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# Public methods
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# loadElementTree(etree) - load registry from specified ElementTree
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# loadFile(filename) - load registry from XML file
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# setGenerator(gen) - OutputGenerator to use
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# breakOnName() - specify a feature name regexp to break on when
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# generating features.
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# parseTree() - parse the registry once loaded & create dictionaries
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# dumpReg(maxlen, filehandle) - diagnostic to dump the dictionaries
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# to specified file handle (default stdout). Truncates type /
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# enum / command elements to maxlen characters (default 80)
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# generator(g) - specify the output generator object
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# apiGen(apiname, genOpts) - generate API headers for the API type
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# and profile specified in genOpts, but only for the versions and
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# extensions specified there.
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# apiReset() - call between calls to apiGen() to reset internal state
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# Private methods
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# addElementInfo(elem,info,infoName,dictionary) - add feature info to dict
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# lookupElementInfo(fname,dictionary) - lookup feature info in dict
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class Registry:
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"""Represents an API registry loaded from XML"""
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def __init__(self):
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self.tree = None
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self.typedict = {}
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self.groupdict = {}
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self.enumdict = {}
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self.cmddict = {}
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self.apidict = {}
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self.extensions = []
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self.requiredextensions = [] # Hack - can remove it after validity generator goes away
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# ** Global types for automatic source generation **
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# Length Member data
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self.commandextensiontuple = namedtuple('commandextensiontuple',
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['command', # The name of the command being modified
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'value', # The value to append to the command
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'extension']) # The name of the extension that added it
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self.validextensionstructs = defaultdict(list)
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self.commandextensionsuccesses = []
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self.commandextensionerrors = []
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self.extdict = {}
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# A default output generator, so commands prior to apiGen can report
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# errors via the generator object.
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self.gen = OutputGenerator()
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self.genOpts = None
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self.emitFeatures = False
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self.breakPat = None
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# self.breakPat = re.compile('VkFenceImportFlagBits.*')
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def loadElementTree(self, tree):
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"""Load ElementTree into a Registry object and parse it"""
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self.tree = tree
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self.parseTree()
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def loadFile(self, file):
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"""Load an API registry XML file into a Registry object and parse it"""
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self.tree = etree.parse(file)
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self.parseTree()
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def setGenerator(self, gen):
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"""Specify output generator object. None restores the default generator"""
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self.gen = gen
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self.gen.setRegistry(self)
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# addElementInfo - add information about an element to the
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# corresponding dictionary
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# elem - <type>/<enums>/<enum>/<command>/<feature>/<extension> Element
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# info - corresponding {Type|Group|Enum|Cmd|Feature}Info object
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# infoName - 'type' / 'group' / 'enum' / 'command' / 'feature' / 'extension'
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# dictionary - self.{type|group|enum|cmd|api|ext}dict
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# If the Element has an 'api' attribute, the dictionary key is the
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# tuple (name,api). If not, the key is the name. 'name' is an
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# attribute of the Element
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def addElementInfo(self, elem, info, infoName, dictionary):
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# self.gen.logMsg('diag', 'Adding ElementInfo.required =',
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# info.required, 'name =', elem.get('name'))
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api = elem.get('api')
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if api:
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key = (elem.get('name'), api)
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else:
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key = elem.get('name')
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if key in dictionary:
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if not dictionary[key].compareElem(info):
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self.gen.logMsg('warn', 'Attempt to redefine', key,
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'with different value (this may be benign)')
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#else:
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# self.gen.logMsg('warn', 'Benign redefinition of', key,
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# 'with identical value')
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else:
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dictionary[key] = info
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# lookupElementInfo - find a {Type|Enum|Cmd}Info object by name.
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# If an object qualified by API name exists, use that.
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# fname - name of type / enum / command
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# dictionary - self.{type|enum|cmd}dict
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def lookupElementInfo(self, fname, dictionary):
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key = (fname, self.genOpts.apiname)
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if key in dictionary:
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# self.gen.logMsg('diag', 'Found API-specific element for feature', fname)
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return dictionary[key]
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if fname in dictionary:
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# self.gen.logMsg('diag', 'Found generic element for feature', fname)
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return dictionary[fname]
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return None
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def breakOnName(self, regexp):
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self.breakPat = re.compile(regexp)
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def parseTree(self):
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"""Parse the registry Element, once created"""
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# This must be the Element for the root <registry>
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self.reg = self.tree.getroot()
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# Create dictionary of registry types from toplevel <types> tags
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# and add 'name' attribute to each <type> tag (where missing)
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# based on its <name> element.
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#
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# There's usually one <types> block; more are OK
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# Required <type> attributes: 'name' or nested <name> tag contents
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self.typedict = {}
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for type_elem in self.reg.findall('types/type'):
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# If the <type> doesn't already have a 'name' attribute, set
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# it from contents of its <name> tag.
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if type_elem.get('name') is None:
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type_elem.set('name', type_elem.find('name').text)
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self.addElementInfo(type_elem, TypeInfo(type_elem), 'type', self.typedict)
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# Create dictionary of registry enum groups from <enums> tags.
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#
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# Required <enums> attributes: 'name'. If no name is given, one is
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# generated, but that group can't be identified and turned into an
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# enum type definition - it's just a container for <enum> tags.
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self.groupdict = {}
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for group in self.reg.findall('enums'):
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self.addElementInfo(group, GroupInfo(group), 'group', self.groupdict)
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# Create dictionary of registry enums from <enum> tags
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#
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# <enums> tags usually define different namespaces for the values
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# defined in those tags, but the actual names all share the
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# same dictionary.
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# Required <enum> attributes: 'name', 'value'
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# For containing <enums> which have type="enum" or type="bitmask",
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# tag all contained <enum>s are required. This is a stopgap until
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# a better scheme for tagging core and extension enums is created.
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self.enumdict = {}
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for enums in self.reg.findall('enums'):
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required = (enums.get('type') is not None)
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for enum in enums.findall('enum'):
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enumInfo = EnumInfo(enum)
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enumInfo.required = required
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self.addElementInfo(enum, enumInfo, 'enum', self.enumdict)
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# Create dictionary of registry commands from <command> tags
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# and add 'name' attribute to each <command> tag (where missing)
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# based on its <proto><name> element.
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#
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# There's usually only one <commands> block; more are OK.
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# Required <command> attributes: 'name' or <proto><name> tag contents
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self.cmddict = {}
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# List of commands which alias others. Contains
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# [ aliasName, element ]
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# for each alias
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cmdAlias = []
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for cmd in self.reg.findall('commands/command'):
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# If the <command> doesn't already have a 'name' attribute, set
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# it from contents of its <proto><name> tag.
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name = cmd.get('name')
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if name is None:
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name = cmd.set('name', cmd.find('proto/name').text)
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ci = CmdInfo(cmd)
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self.addElementInfo(cmd, ci, 'command', self.cmddict)
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alias = cmd.get('alias')
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if alias:
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cmdAlias.append([name, alias, cmd])
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# Now loop over aliases, injecting a copy of the aliased command's
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# Element with the aliased prototype name replaced with the command
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# name - if it exists.
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for (name, alias, cmd) in cmdAlias:
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if alias in self.cmddict:
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#@ pdb.set_trace()
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aliasInfo = self.cmddict[alias]
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cmdElem = copy.deepcopy(aliasInfo.elem)
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cmdElem.find('proto/name').text = name
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cmdElem.set('name', name)
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cmdElem.set('alias', alias)
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ci = CmdInfo(cmdElem)
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# Replace the dictionary entry for the CmdInfo element
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self.cmddict[name] = ci
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#@ newString = etree.tostring(base, encoding="unicode").replace(aliasValue, aliasName)
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#@elem.append(etree.fromstring(replacement))
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else:
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self.gen.logMsg('warn', 'No matching <command> found for command',
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cmd.get('name'), 'alias', alias)
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# Create dictionaries of API and extension interfaces
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# from toplevel <api> and <extension> tags.
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self.apidict = {}
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for feature in self.reg.findall('feature'):
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featureInfo = FeatureInfo(feature)
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self.addElementInfo(feature, featureInfo, 'feature', self.apidict)
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# Add additional enums defined only in <feature> tags
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# to the corresponding core type.
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# When seen here, the <enum> element, processed to contain the
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# numeric enum value, is added to the corresponding <enums>
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# element, as well as adding to the enum dictionary. It is
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# *removed* from the <require> element it is introduced in.
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# Not doing this will cause spurious genEnum()
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# calls to be made in output generation, and it's easier
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# to handle here than in genEnum().
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#
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# In lxml.etree, an Element can have only one parent, so the
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# append() operation also removes the element. But in Python's
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# ElementTree package, an Element can have multiple parents. So
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# it must be explicitly removed from the <require> tag, leading
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# to the nested loop traversal of <require>/<enum> elements
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# below.
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#
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# This code also adds a 'version' attribute containing the
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# api version.
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#
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# For <enum> tags which are actually just constants, if there's
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# no 'extends' tag but there is a 'value' or 'bitpos' tag, just
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# add an EnumInfo record to the dictionary. That works because
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# output generation of constants is purely dependency-based, and
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# doesn't need to iterate through the XML tags.
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for elem in feature.findall('require'):
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for enum in elem.findall('enum'):
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addEnumInfo = False
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groupName = enum.get('extends')
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if groupName is not None:
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# self.gen.logMsg('diag', 'Found extension enum',
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# enum.get('name'))
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# Add version number attribute to the <enum> element
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enum.set('version', featureInfo.version)
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# Look up the GroupInfo with matching groupName
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if groupName in self.groupdict:
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# self.gen.logMsg('diag', 'Matching group',
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# groupName, 'found, adding element...')
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gi = self.groupdict[groupName]
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gi.elem.append(enum)
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# Remove element from parent <require> tag
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# This should be a no-op in lxml.etree
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elem.remove(enum)
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else:
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self.gen.logMsg('warn', 'NO matching group',
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groupName, 'for enum', enum.get('name'), 'found.')
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addEnumInfo = True
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elif enum.get('value') or enum.get('bitpos') or enum.get('alias'):
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# self.gen.logMsg('diag', 'Adding extension constant "enum"',
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# enum.get('name'))
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addEnumInfo = True
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if addEnumInfo:
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enumInfo = EnumInfo(enum)
|
|
self.addElementInfo(enum, enumInfo, 'enum', self.enumdict)
|
|
|
|
self.extensions = self.reg.findall('extensions/extension')
|
|
self.extdict = {}
|
|
for feature in self.extensions:
|
|
featureInfo = FeatureInfo(feature)
|
|
self.addElementInfo(feature, featureInfo, 'extension', self.extdict)
|
|
|
|
# Add additional enums defined only in <extension> tags
|
|
# to the corresponding core type.
|
|
# Algorithm matches that of enums in a "feature" tag as above.
|
|
#
|
|
# This code also adds a 'extnumber' attribute containing the
|
|
# extension number, used for enumerant value calculation.
|
|
for elem in feature.findall('require'):
|
|
for enum in elem.findall('enum'):
|
|
addEnumInfo = False
|
|
groupName = enum.get('extends')
|
|
if groupName is not None:
|
|
# self.gen.logMsg('diag', 'Found extension enum',
|
|
# enum.get('name'))
|
|
|
|
# Add <extension> block's extension number attribute to
|
|
# the <enum> element unless specified explicitly, such
|
|
# as when redefining an enum in another extension.
|
|
extnumber = enum.get('extnumber')
|
|
if not extnumber:
|
|
enum.set('extnumber', featureInfo.number)
|
|
|
|
enum.set('extname', featureInfo.name)
|
|
enum.set('supported', featureInfo.supported)
|
|
# Look up the GroupInfo with matching groupName
|
|
if groupName in self.groupdict:
|
|
# self.gen.logMsg('diag', 'Matching group',
|
|
# groupName, 'found, adding element...')
|
|
gi = self.groupdict[groupName]
|
|
gi.elem.append(enum)
|
|
# Remove element from parent <require> tag
|
|
# This should be a no-op in lxml.etree
|
|
elem.remove(enum)
|
|
else:
|
|
self.gen.logMsg('warn', 'NO matching group',
|
|
groupName, 'for enum', enum.get('name'), 'found.')
|
|
addEnumInfo = True
|
|
elif enum.get('value') or enum.get('bitpos') or enum.get('alias'):
|
|
# self.gen.logMsg('diag', 'Adding extension constant "enum"',
|
|
# enum.get('name'))
|
|
addEnumInfo = True
|
|
if addEnumInfo:
|
|
enumInfo = EnumInfo(enum)
|
|
self.addElementInfo(enum, enumInfo, 'enum', self.enumdict)
|
|
|
|
# Construct a "validextensionstructs" list for parent structures
|
|
# based on "structextends" tags in child structures
|
|
disabled_types = []
|
|
for disabled_ext in self.reg.findall('extensions/extension[@supported="disabled"]'):
|
|
for type_elem in disabled_ext.findall("*/type"):
|
|
disabled_types.append(type_elem.get('name'))
|
|
for type_elem in self.reg.findall('types/type'):
|
|
if type_elem.get('name') not in disabled_types:
|
|
parentStructs = type_elem.get('structextends')
|
|
if parentStructs is not None:
|
|
for parent in parentStructs.split(','):
|
|
# self.gen.logMsg('diag', type.get('name'), 'extends', parent)
|
|
self.validextensionstructs[parent].append(type_elem.get('name'))
|
|
# Sort the lists so they don't depend on the XML order
|
|
for parent in self.validextensionstructs:
|
|
self.validextensionstructs[parent].sort()
|
|
|
|
def dumpReg(self, maxlen = 120, filehandle = sys.stdout):
|
|
"""Dump all the dictionaries constructed from the Registry object"""
|
|
write('***************************************', file=filehandle)
|
|
write(' ** Dumping Registry contents **', file=filehandle)
|
|
write('***************************************', file=filehandle)
|
|
write('// Types', file=filehandle)
|
|
for name in self.typedict:
|
|
tobj = self.typedict[name]
|
|
write(' Type', name, '->', etree.tostring(tobj.elem)[0:maxlen], file=filehandle)
|
|
write('// Groups', file=filehandle)
|
|
for name in self.groupdict:
|
|
gobj = self.groupdict[name]
|
|
write(' Group', name, '->', etree.tostring(gobj.elem)[0:maxlen], file=filehandle)
|
|
write('// Enums', file=filehandle)
|
|
for name in self.enumdict:
|
|
eobj = self.enumdict[name]
|
|
write(' Enum', name, '->', etree.tostring(eobj.elem)[0:maxlen], file=filehandle)
|
|
write('// Commands', file=filehandle)
|
|
for name in self.cmddict:
|
|
cobj = self.cmddict[name]
|
|
write(' Command', name, '->', etree.tostring(cobj.elem)[0:maxlen], file=filehandle)
|
|
write('// APIs', file=filehandle)
|
|
for key in self.apidict:
|
|
write(' API Version ', key, '->',
|
|
etree.tostring(self.apidict[key].elem)[0:maxlen], file=filehandle)
|
|
write('// Extensions', file=filehandle)
|
|
for key in self.extdict:
|
|
write(' Extension', key, '->',
|
|
etree.tostring(self.extdict[key].elem)[0:maxlen], file=filehandle)
|
|
# write('***************************************', file=filehandle)
|
|
# write(' ** Dumping XML ElementTree **', file=filehandle)
|
|
# write('***************************************', file=filehandle)
|
|
# write(etree.tostring(self.tree.getroot(),pretty_print=True), file=filehandle)
|
|
|
|
# typename - name of type
|
|
# required - boolean (to tag features as required or not)
|
|
def markTypeRequired(self, typename, required):
|
|
"""Require (along with its dependencies) or remove (but not its dependencies) a type"""
|
|
self.gen.logMsg('diag', 'tagging type:', typename, '-> required =', required)
|
|
# Get TypeInfo object for <type> tag corresponding to typename
|
|
typeinfo = self.lookupElementInfo(typename, self.typedict)
|
|
if typeinfo is not None:
|
|
if required:
|
|
# Tag type dependencies in 'alias' and 'required' attributes as
|
|
# required. This DOES NOT un-tag dependencies in a <remove>
|
|
# tag. See comments in markRequired() below for the reason.
|
|
for attrib_name in [ 'requires', 'alias' ]:
|
|
depname = typeinfo.elem.get(attrib_name)
|
|
if depname:
|
|
self.gen.logMsg('diag', 'Generating dependent type',
|
|
depname, 'for', attrib_name, 'type', typename)
|
|
# Don't recurse on self-referential structures.
|
|
if typename != depname:
|
|
self.markTypeRequired(depname, required)
|
|
else:
|
|
self.gen.logMsg('diag', 'type', typename, 'is self-referential')
|
|
# Tag types used in defining this type (e.g. in nested
|
|
# <type> tags)
|
|
# Look for <type> in entire <command> tree,
|
|
# not just immediate children
|
|
for subtype in typeinfo.elem.findall('.//type'):
|
|
self.gen.logMsg('diag', 'markRequired: type requires dependent <type>', subtype.text)
|
|
if typename != subtype.text:
|
|
self.markTypeRequired(subtype.text, required)
|
|
else:
|
|
self.gen.logMsg('diag', 'type', typename, 'is self-referential')
|
|
# Tag enums used in defining this type, for example in
|
|
# <member><name>member</name>[<enum>MEMBER_SIZE</enum>]</member>
|
|
for subenum in typeinfo.elem.findall('.//enum'):
|
|
self.gen.logMsg('diag', 'markRequired: type requires dependent <enum>', subenum.text)
|
|
self.markEnumRequired(subenum.text, required)
|
|
# Tag type dependency in 'bitvalues' attributes as
|
|
# required. This ensures that the bit values for a flag
|
|
# are emitted
|
|
depType = typeinfo.elem.get('bitvalues')
|
|
if depType:
|
|
self.gen.logMsg('diag', 'Generating bitflag type',
|
|
depType, 'for type', typename)
|
|
self.markTypeRequired(depType, required)
|
|
group = self.lookupElementInfo(depType, self.groupdict)
|
|
if group is not None:
|
|
group.flagType = typeinfo
|
|
|
|
typeinfo.required = required
|
|
elif '.h' not in typename:
|
|
self.gen.logMsg('warn', 'type:', typename , 'IS NOT DEFINED')
|
|
|
|
# enumname - name of enum
|
|
# required - boolean (to tag features as required or not)
|
|
def markEnumRequired(self, enumname, required):
|
|
self.gen.logMsg('diag', 'tagging enum:', enumname, '-> required =', required)
|
|
enum = self.lookupElementInfo(enumname, self.enumdict)
|
|
if enum is not None:
|
|
enum.required = required
|
|
# Tag enum dependencies in 'alias' attribute as required
|
|
depname = enum.elem.get('alias')
|
|
if depname:
|
|
self.gen.logMsg('diag', 'Generating dependent enum',
|
|
depname, 'for alias', enumname, 'required =', enum.required)
|
|
self.markEnumRequired(depname, required)
|
|
else:
|
|
self.gen.logMsg('warn', 'enum:', enumname , 'IS NOT DEFINED')
|
|
|
|
# cmdname - name of command
|
|
# required - boolean (to tag features as required or not)
|
|
def markCmdRequired(self, cmdname, required):
|
|
self.gen.logMsg('diag', 'tagging command:', cmdname, '-> required =', required)
|
|
cmd = self.lookupElementInfo(cmdname, self.cmddict)
|
|
if cmd is not None:
|
|
cmd.required = required
|
|
# Tag command dependencies in 'alias' attribute as required
|
|
depname = cmd.elem.get('alias')
|
|
if depname:
|
|
self.gen.logMsg('diag', 'Generating dependent command',
|
|
depname, 'for alias', cmdname)
|
|
self.markCmdRequired(depname, required)
|
|
# Tag all parameter types of this command as required.
|
|
# This DOES NOT remove types of commands in a <remove>
|
|
# tag, because many other commands may use the same type.
|
|
# We could be more clever and reference count types,
|
|
# instead of using a boolean.
|
|
if required:
|
|
# Look for <type> in entire <command> tree,
|
|
# not just immediate children
|
|
for type_elem in cmd.elem.findall('.//type'):
|
|
self.gen.logMsg('diag', 'markRequired: command implicitly requires dependent type', type_elem.text)
|
|
self.markTypeRequired(type_elem.text, required)
|
|
else:
|
|
self.gen.logMsg('warn', 'command:', cmdname, 'IS NOT DEFINED')
|
|
|
|
# featurename - name of the feature
|
|
# feature - Element for <require> or <remove> tag
|
|
# required - boolean (to tag features as required or not)
|
|
def markRequired(self, featurename, feature, required):
|
|
"""Require or remove features specified in the Element"""
|
|
self.gen.logMsg('diag', 'markRequired (feature = <too long to print>, required =', required, ')')
|
|
|
|
# Loop over types, enums, and commands in the tag
|
|
# @@ It would be possible to respect 'api' and 'profile' attributes
|
|
# in individual features, but that's not done yet.
|
|
for typeElem in feature.findall('type'):
|
|
self.markTypeRequired(typeElem.get('name'), required)
|
|
for enumElem in feature.findall('enum'):
|
|
self.markEnumRequired(enumElem.get('name'), required)
|
|
for cmdElem in feature.findall('command'):
|
|
self.markCmdRequired(cmdElem.get('name'), required)
|
|
|
|
# Extensions may need to extend existing commands or other items in the future.
|
|
# So, look for extend tags.
|
|
for extendElem in feature.findall('extend'):
|
|
extendType = extendElem.get('type')
|
|
if extendType == 'command':
|
|
commandName = extendElem.get('name')
|
|
successExtends = extendElem.get('successcodes')
|
|
if successExtends is not None:
|
|
for success in successExtends.split(','):
|
|
self.commandextensionsuccesses.append(self.commandextensiontuple(command=commandName,
|
|
value=success,
|
|
extension=featurename))
|
|
errorExtends = extendElem.get('errorcodes')
|
|
if errorExtends is not None:
|
|
for error in errorExtends.split(','):
|
|
self.commandextensionerrors.append(self.commandextensiontuple(command=commandName,
|
|
value=error,
|
|
extension=featurename))
|
|
else:
|
|
self.gen.logMsg('warn', 'extend type:', extendType, 'IS NOT SUPPORTED')
|
|
|
|
# interface - Element for <version> or <extension>, containing
|
|
# <require> and <remove> tags
|
|
# featurename - name of the feature
|
|
# api - string specifying API name being generated
|
|
# profile - string specifying API profile being generated
|
|
def requireAndRemoveFeatures(self, interface, featurename, api, profile):
|
|
"""Process <require> and <remove> tags for a <version> or <extension>"""
|
|
# <require> marks things that are required by this version/profile
|
|
for feature in interface.findall('require'):
|
|
if matchAPIProfile(api, profile, feature):
|
|
self.markRequired(featurename, feature, True)
|
|
# <remove> marks things that are removed by this version/profile
|
|
for feature in interface.findall('remove'):
|
|
if matchAPIProfile(api, profile, feature):
|
|
self.markRequired(featurename, feature, False)
|
|
|
|
def assignAdditionalValidity(self, interface, api, profile):
|
|
# Loop over all usage inside all <require> tags.
|
|
for feature in interface.findall('require'):
|
|
if matchAPIProfile(api, profile, feature):
|
|
for v in feature.findall('usage'):
|
|
if v.get('command'):
|
|
self.cmddict[v.get('command')].additionalValidity.append(copy.deepcopy(v))
|
|
if v.get('struct'):
|
|
self.typedict[v.get('struct')].additionalValidity.append(copy.deepcopy(v))
|
|
|
|
# Loop over all usage inside all <remove> tags.
|
|
for feature in interface.findall('remove'):
|
|
if matchAPIProfile(api, profile, feature):
|
|
for v in feature.findall('usage'):
|
|
if v.get('command'):
|
|
self.cmddict[v.get('command')].removedValidity.append(copy.deepcopy(v))
|
|
if v.get('struct'):
|
|
self.typedict[v.get('struct')].removedValidity.append(copy.deepcopy(v))
|
|
|
|
# generateFeature - generate a single type / enum group / enum / command,
|
|
# and all its dependencies as needed.
|
|
# fname - name of feature (<type>/<enum>/<command>)
|
|
# ftype - type of feature, 'type' | 'enum' | 'command'
|
|
# dictionary - of *Info objects - self.{type|enum|cmd}dict
|
|
def generateFeature(self, fname, ftype, dictionary):
|
|
#@ # Break to debugger on matching name pattern
|
|
#@ if self.breakPat and re.match(self.breakPat, fname):
|
|
#@ pdb.set_trace()
|
|
|
|
self.gen.logMsg('diag', 'generateFeature: generating', ftype, fname)
|
|
f = self.lookupElementInfo(fname, dictionary)
|
|
if f is None:
|
|
# No such feature. This is an error, but reported earlier
|
|
self.gen.logMsg('diag', 'No entry found for feature', fname,
|
|
'returning!')
|
|
return
|
|
|
|
# If feature isn't required, or has already been declared, return
|
|
if not f.required:
|
|
self.gen.logMsg('diag', 'Skipping', ftype, fname, '(not required)')
|
|
return
|
|
if f.declared:
|
|
self.gen.logMsg('diag', 'Skipping', ftype, fname, '(already declared)')
|
|
return
|
|
# Always mark feature declared, as though actually emitted
|
|
f.declared = True
|
|
|
|
# Determine if this is an alias, and of what, if so
|
|
alias = f.elem.get('alias')
|
|
if alias:
|
|
self.gen.logMsg('diag', fname, 'is an alias of', alias)
|
|
|
|
# Pull in dependent declaration(s) of the feature.
|
|
# For types, there may be one type in the 'requires' attribute of
|
|
# the element, one in the 'alias' attribute, and many in
|
|
# embedded <type> and <enum> tags within the element.
|
|
# For commands, there may be many in <type> tags within the element.
|
|
# For enums, no dependencies are allowed (though perhaps if you
|
|
# have a uint64 enum, it should require that type).
|
|
genProc = None
|
|
followupFeature = None
|
|
if ftype == 'type':
|
|
genProc = self.gen.genType
|
|
|
|
# Generate type dependencies in 'alias' and 'requires' attributes
|
|
if alias:
|
|
self.generateFeature(alias, 'type', self.typedict)
|
|
requires = f.elem.get('requires')
|
|
if requires:
|
|
self.gen.logMsg('diag', 'Generating required dependent type',
|
|
requires)
|
|
self.generateFeature(requires, 'type', self.typedict)
|
|
|
|
# Generate types used in defining this type (e.g. in nested
|
|
# <type> tags)
|
|
# Look for <type> in entire <command> tree,
|
|
# not just immediate children
|
|
for subtype in f.elem.findall('.//type'):
|
|
self.gen.logMsg('diag', 'Generating required dependent <type>',
|
|
subtype.text)
|
|
self.generateFeature(subtype.text, 'type', self.typedict)
|
|
|
|
# Generate enums used in defining this type, for example in
|
|
# <member><name>member</name>[<enum>MEMBER_SIZE</enum>]</member>
|
|
for subtype in f.elem.findall('.//enum'):
|
|
self.gen.logMsg('diag', 'Generating required dependent <enum>',
|
|
subtype.text)
|
|
self.generateFeature(subtype.text, 'enum', self.enumdict)
|
|
|
|
# If the type is an enum group, look up the corresponding
|
|
# group in the group dictionary and generate that instead.
|
|
if f.elem.get('category') == 'enum':
|
|
self.gen.logMsg('diag', 'Type', fname, 'is an enum group, so generate that instead')
|
|
group = self.lookupElementInfo(fname, self.groupdict)
|
|
if alias is not None:
|
|
# An alias of another group name.
|
|
# Pass to genGroup with 'alias' parameter = aliased name
|
|
self.gen.logMsg('diag', 'Generating alias', fname,
|
|
'for enumerated type', alias)
|
|
# Now, pass the *aliased* GroupInfo to the genGroup, but
|
|
# with an additional parameter which is the alias name.
|
|
genProc = self.gen.genGroup
|
|
f = self.lookupElementInfo(alias, self.groupdict)
|
|
elif group is None:
|
|
self.gen.logMsg('warn', 'Skipping enum type', fname,
|
|
': No matching enumerant group')
|
|
return
|
|
else:
|
|
genProc = self.gen.genGroup
|
|
f = group
|
|
|
|
#@ The enum group is not ready for generation. At this
|
|
#@ point, it contains all <enum> tags injected by
|
|
#@ <extension> tags without any verification of whether
|
|
#@ they're required or not. It may also contain
|
|
#@ duplicates injected by multiple consistent
|
|
#@ definitions of an <enum>.
|
|
|
|
#@ Pass over each enum, marking its enumdict[] entry as
|
|
#@ required or not. Mark aliases of enums as required,
|
|
#@ too.
|
|
|
|
enums = group.elem.findall('enum')
|
|
|
|
self.gen.logMsg('diag', 'generateFeature: checking enums for group', fname)
|
|
|
|
# Check for required enums, including aliases
|
|
# LATER - Check for, report, and remove duplicates?
|
|
enumAliases = []
|
|
for elem in enums:
|
|
name = elem.get('name')
|
|
|
|
required = False
|
|
|
|
extname = elem.get('extname')
|
|
version = elem.get('version')
|
|
if extname is not None:
|
|
# 'supported' attribute was injected when the <enum> element was
|
|
# moved into the <enums> group in Registry.parseTree()
|
|
if self.genOpts.defaultExtensions == elem.get('supported'):
|
|
required = True
|
|
elif re.match(self.genOpts.addExtensions, extname) is not None:
|
|
required = True
|
|
elif version is not None:
|
|
required = re.match(self.genOpts.emitversions, version) is not None
|
|
else:
|
|
required = True
|
|
|
|
self.gen.logMsg('diag', '* required =', required, 'for', name)
|
|
if required:
|
|
# Mark this element as required (in the element, not the EnumInfo)
|
|
elem.set('required', 'true')
|
|
# If it's an alias, track that for later use
|
|
enumAlias = elem.get('alias')
|
|
if enumAlias:
|
|
enumAliases.append(enumAlias)
|
|
for elem in enums:
|
|
name = elem.get('name')
|
|
if name in enumAliases:
|
|
elem.set('required', 'true')
|
|
self.gen.logMsg('diag', '* also need to require alias', name)
|
|
if f.elem.get('category') == 'bitmask':
|
|
followupFeature = f.elem.get( 'bitvalues' )
|
|
elif ftype == 'command':
|
|
# Generate command dependencies in 'alias' attribute
|
|
if alias:
|
|
self.generateFeature(alias, 'command', self.cmddict)
|
|
|
|
genProc = self.gen.genCmd
|
|
for type_elem in f.elem.findall('.//type'):
|
|
depname = type_elem.text
|
|
self.gen.logMsg('diag', 'Generating required parameter type',
|
|
depname)
|
|
self.generateFeature(depname, 'type', self.typedict)
|
|
elif ftype == 'enum':
|
|
# Generate enum dependencies in 'alias' attribute
|
|
if alias:
|
|
self.generateFeature(alias, 'enum', self.enumdict)
|
|
genProc = self.gen.genEnum
|
|
|
|
# Actually generate the type only if emitting declarations
|
|
if self.emitFeatures:
|
|
self.gen.logMsg('diag', 'Emitting', ftype, 'decl for', fname)
|
|
genProc(f, fname, alias)
|
|
else:
|
|
self.gen.logMsg('diag', 'Skipping', ftype, fname,
|
|
'(should not be emitted)')
|
|
|
|
if followupFeature :
|
|
self.gen.logMsg('diag', 'Generating required bitvalues <enum>',
|
|
followupFeature)
|
|
self.generateFeature(followupFeature, "type", self.typedict)
|
|
|
|
# generateRequiredInterface - generate all interfaces required
|
|
# by an API version or extension
|
|
# interface - Element for <version> or <extension>
|
|
def generateRequiredInterface(self, interface):
|
|
"""Generate required C interface for specified API version/extension"""
|
|
|
|
# Loop over all features inside all <require> tags.
|
|
for features in interface.findall('require'):
|
|
for t in features.findall('type'):
|
|
self.generateFeature(t.get('name'), 'type', self.typedict)
|
|
for e in features.findall('enum'):
|
|
self.generateFeature(e.get('name'), 'enum', self.enumdict)
|
|
for c in features.findall('command'):
|
|
self.generateFeature(c.get('name'), 'command', self.cmddict)
|
|
|
|
# apiGen(genOpts) - generate interface for specified versions
|
|
# genOpts - GeneratorOptions object with parameters used
|
|
# by the Generator object.
|
|
def apiGen(self, genOpts):
|
|
"""Generate interfaces for the specified API type and range of versions"""
|
|
|
|
self.gen.logMsg('diag', '*******************************************')
|
|
self.gen.logMsg('diag', ' Registry.apiGen file:', genOpts.filename,
|
|
'api:', genOpts.apiname,
|
|
'profile:', genOpts.profile)
|
|
self.gen.logMsg('diag', '*******************************************')
|
|
|
|
self.genOpts = genOpts
|
|
# Reset required/declared flags for all features
|
|
self.apiReset()
|
|
|
|
# Compile regexps used to select versions & extensions
|
|
regVersions = re.compile(self.genOpts.versions)
|
|
regEmitVersions = re.compile(self.genOpts.emitversions)
|
|
regAddExtensions = re.compile(self.genOpts.addExtensions)
|
|
regRemoveExtensions = re.compile(self.genOpts.removeExtensions)
|
|
regEmitExtensions = re.compile(self.genOpts.emitExtensions)
|
|
|
|
# Get all matching API feature names & add to list of FeatureInfo
|
|
# Note we used to select on feature version attributes, not names.
|
|
features = []
|
|
apiMatch = False
|
|
for key in self.apidict:
|
|
fi = self.apidict[key]
|
|
api = fi.elem.get('api')
|
|
if api == self.genOpts.apiname:
|
|
apiMatch = True
|
|
if regVersions.match(fi.name):
|
|
# Matches API & version #s being generated. Mark for
|
|
# emission and add to the features[] list .
|
|
# @@ Could use 'declared' instead of 'emit'?
|
|
fi.emit = (regEmitVersions.match(fi.name) is not None)
|
|
features.append(fi)
|
|
if not fi.emit:
|
|
self.gen.logMsg('diag', 'NOT tagging feature api =', api,
|
|
'name =', fi.name, 'version =', fi.version,
|
|
'for emission (does not match emitversions pattern)')
|
|
else:
|
|
self.gen.logMsg('diag', 'Including feature api =', api,
|
|
'name =', fi.name, 'version =', fi.version,
|
|
'for emission (matches emitversions pattern)')
|
|
else:
|
|
self.gen.logMsg('diag', 'NOT including feature api =', api,
|
|
'name =', fi.name, 'version =', fi.version,
|
|
'(does not match requested versions)')
|
|
else:
|
|
self.gen.logMsg('diag', 'NOT including feature api =', api,
|
|
'name =', fi.name,
|
|
'(does not match requested API)')
|
|
if not apiMatch:
|
|
self.gen.logMsg('warn', 'No matching API versions found!')
|
|
|
|
# Get all matching extensions, in order by their extension number,
|
|
# and add to the list of features.
|
|
# Start with extensions tagged with 'api' pattern matching the API
|
|
# being generated. Add extensions matching the pattern specified in
|
|
# regExtensions, then remove extensions matching the pattern
|
|
# specified in regRemoveExtensions
|
|
for (extName,ei) in sorted(self.extdict.items(),key = lambda x : x[1].number if x[1].number is not None else '0'):
|
|
extName = ei.name
|
|
include = False
|
|
|
|
# Include extension if defaultExtensions is not None and if the
|
|
# 'supported' attribute matches defaultExtensions. The regexp in
|
|
# 'supported' must exactly match defaultExtensions, so bracket
|
|
# it with ^(pat)$.
|
|
pat = '^(' + ei.elem.get('supported') + ')$'
|
|
if (self.genOpts.defaultExtensions and
|
|
re.match(pat, self.genOpts.defaultExtensions)):
|
|
self.gen.logMsg('diag', 'Including extension',
|
|
extName, "(defaultExtensions matches the 'supported' attribute)")
|
|
include = True
|
|
|
|
# Include additional extensions if the extension name matches
|
|
# the regexp specified in the generator options. This allows
|
|
# forcing extensions into an interface even if they're not
|
|
# tagged appropriately in the registry.
|
|
if regAddExtensions.match(extName) is not None:
|
|
self.gen.logMsg('diag', 'Including extension',
|
|
extName, '(matches explicitly requested extensions to add)')
|
|
include = True
|
|
# Remove extensions if the name matches the regexp specified
|
|
# in generator options. This allows forcing removal of
|
|
# extensions from an interface even if they're tagged that
|
|
# way in the registry.
|
|
if regRemoveExtensions.match(extName) is not None:
|
|
self.gen.logMsg('diag', 'Removing extension',
|
|
extName, '(matches explicitly requested extensions to remove)')
|
|
include = False
|
|
|
|
# If the extension is to be included, add it to the
|
|
# extension features list.
|
|
if include:
|
|
ei.emit = (regEmitExtensions.match(extName) is not None)
|
|
features.append(ei)
|
|
if not ei.emit:
|
|
self.gen.logMsg('diag', 'NOT tagging extension',
|
|
extName,
|
|
'for emission (does not match emitextensions pattern)')
|
|
|
|
# Hack - can be removed when validity generator goes away
|
|
# (Jon) I'm not sure what this does, or if it should respect
|
|
# the ei.emit flag above.
|
|
self.requiredextensions.append(extName)
|
|
else:
|
|
self.gen.logMsg('diag', 'NOT including extension',
|
|
extName, '(does not match api attribute or explicitly requested extensions)')
|
|
|
|
# Sort the extension features list, if a sort procedure is defined
|
|
if self.genOpts.sortProcedure:
|
|
self.genOpts.sortProcedure(features)
|
|
|
|
# Pass 1: loop over requested API versions and extensions tagging
|
|
# types/commands/features as required (in an <require> block) or no
|
|
# longer required (in an <remove> block). It is possible to remove
|
|
# a feature in one version and restore it later by requiring it in
|
|
# a later version.
|
|
# If a profile other than 'None' is being generated, it must
|
|
# match the profile attribute (if any) of the <require> and
|
|
# <remove> tags.
|
|
self.gen.logMsg('diag', 'PASS 1: TAG FEATURES')
|
|
for f in features:
|
|
self.gen.logMsg('diag', 'PASS 1: Tagging required and removed features for',
|
|
f.name)
|
|
self.requireAndRemoveFeatures(f.elem, f.name, self.genOpts.apiname, self.genOpts.profile)
|
|
self.assignAdditionalValidity(f.elem, self.genOpts.apiname, self.genOpts.profile)
|
|
|
|
# Pass 2: loop over specified API versions and extensions printing
|
|
# declarations for required things which haven't already been
|
|
# generated.
|
|
self.gen.logMsg('diag', 'PASS 2: GENERATE INTERFACES FOR FEATURES')
|
|
self.gen.beginFile(self.genOpts)
|
|
for f in features:
|
|
self.gen.logMsg('diag', 'PASS 2: Generating interface for',
|
|
f.name)
|
|
emit = self.emitFeatures = f.emit
|
|
if not emit:
|
|
self.gen.logMsg('diag', 'PASS 2: NOT declaring feature',
|
|
f.elem.get('name'), 'because it is not tagged for emission')
|
|
# Generate the interface (or just tag its elements as having been
|
|
# emitted, if they haven't been).
|
|
self.gen.beginFeature(f.elem, emit)
|
|
self.generateRequiredInterface(f.elem)
|
|
self.gen.endFeature()
|
|
self.gen.endFile()
|
|
|
|
# apiReset - use between apiGen() calls to reset internal state
|
|
def apiReset(self):
|
|
"""Reset type/enum/command dictionaries before generating another API"""
|
|
for datatype in self.typedict:
|
|
self.typedict[datatype].resetState()
|
|
for enum in self.enumdict:
|
|
self.enumdict[enum].resetState()
|
|
for cmd in self.cmddict:
|
|
self.cmddict[cmd].resetState()
|
|
for cmd in self.apidict:
|
|
self.apidict[cmd].resetState()
|
|
|
|
# validateGroups - check that group= attributes match actual groups
|
|
def validateGroups(self):
|
|
"""Validate group= attributes on <param> and <proto> tags"""
|
|
# Keep track of group names not in <group> tags
|
|
badGroup = {}
|
|
self.gen.logMsg('diag', 'VALIDATING GROUP ATTRIBUTES')
|
|
for cmd in self.reg.findall('commands/command'):
|
|
proto = cmd.find('proto')
|
|
# funcname = cmd.find('proto/name').text
|
|
group = proto.get('group')
|
|
if group is not None and group not in self.groupdict:
|
|
# self.gen.logMsg('diag', '*** Command ', funcname, ' has UNKNOWN return group ', group)
|
|
if group not in badGroup:
|
|
badGroup[group] = 1
|
|
else:
|
|
badGroup[group] = badGroup[group] + 1
|
|
|
|
for param in cmd.findall('param'):
|
|
pname = param.find('name')
|
|
if pname is not None:
|
|
pname = pname.text
|
|
else:
|
|
pname = param.get('name')
|
|
group = param.get('group')
|
|
if group is not None and group not in self.groupdict:
|
|
# self.gen.logMsg('diag', '*** Command ', funcname, ' param ', pname, ' has UNKNOWN group ', group)
|
|
if group not in badGroup:
|
|
badGroup[group] = 1
|
|
else:
|
|
badGroup[group] = badGroup[group] + 1
|
|
|
|
if badGroup:
|
|
self.gen.logMsg('diag', 'SUMMARY OF UNRECOGNIZED GROUPS')
|
|
for key in sorted(badGroup.keys()):
|
|
self.gen.logMsg('diag', ' ', key, ' occurred ', badGroup[key], ' times')
|