1571 lines
74 KiB
Python
1571 lines
74 KiB
Python
#!/usr/bin/python3 -i
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#
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# Copyright 2013-2022 The Khronos Group Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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"""Types and classes for manipulating an API registry."""
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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, deque, namedtuple
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from generator import GeneratorOptions, OutputGenerator, noneStr, write
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from apiconventions import APIConventions
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def apiNameMatch(str, supported):
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"""Return whether a required api name matches a pattern specified for an
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XML <feature> 'api' attribute or <extension> 'supported' attribute.
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- str - API name such as 'vulkan' or 'openxr'. May be None, in which
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case it never matches (this should not happen).
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- supported - comma-separated list of XML API names. May be None, in
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which case str always matches (this is the usual case)."""
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if str is not None:
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return supported is None or str in supported.split(',')
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# Fallthrough case - either str is None or the test failed
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return False
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def matchAPIProfile(api, profile, elem):
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"""Return 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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```
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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. Cannot 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 is not really quite enough, we might prefer something
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like `"gl(core)|gles1(common-lite)"`."""
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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 does not 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 does not match attribute
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return False
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return True
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def stripNonmatchingAPIs(tree, apiName, actuallyDelete = True):
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"""Remove tree Elements with 'api' attributes matching apiName.
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tree - Element at the root of the hierarchy to strip. Only its
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children can actually be removed, not the tree itself.
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apiName - string which much match a command-separated component of
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the 'api' attribute.
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actuallyDelete - only delete matching elements if True."""
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stack = deque()
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stack.append(tree)
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while len(stack) > 0:
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parent = stack.pop()
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for child in parent.findall('*'):
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api = child.get('api')
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if apiNameMatch(apiName, api):
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# Add child to the queue
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stack.append(child)
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elif not apiNameMatch(apiName, api):
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# Child does not match requested api. Remove it.
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if actuallyDelete:
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parent.remove(child)
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class BaseInfo:
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"""Base class for information about a registry feature
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(type/group/enum/command/API/extension).
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Represents the state of a registry feature, used during API generation.
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"""
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def __init__(self, elem):
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self.required = False
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"""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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self.declared = False
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"has this feature been defined already?"
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self.elem = elem
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"etree Element for this feature"
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def resetState(self):
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"""Reset required/declared to initial values. Used
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prior to generating a new API interface."""
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self.required = False
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self.declared = False
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def compareKeys(self, info, key, required = False):
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"""Return True if self.elem and info.elem have the same attribute
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value for key.
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If 'required' is not True, also returns True if neither element
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has an attribute value for key."""
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if required and key not in self.elem.keys():
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return False
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return self.elem.get(key) == info.elem.get(key)
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def compareElem(self, info, infoName):
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"""Return True if self.elem and info.elem have the same definition.
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info - the other object
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infoName - 'type' / 'group' / 'enum' / 'command' / 'feature' /
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'extension'"""
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if infoName == 'enum':
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if self.compareKeys(info, 'extends'):
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# Either both extend the same type, or no type
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if (self.compareKeys(info, 'value', required = True) or
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self.compareKeys(info, 'bitpos', required = True)):
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# If both specify the same value or bit position,
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# they are equal
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return True
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elif (self.compareKeys(info, 'extnumber') and
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self.compareKeys(info, 'offset') and
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self.compareKeys(info, 'dir')):
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# If both specify the same relative offset, they are equal
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return True
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elif (self.compareKeys(info, 'alias')):
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# If both are aliases of the same value
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return True
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else:
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return False
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else:
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# The same enum cannot extend two different types
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return False
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else:
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# Non-<enum>s should never be redefined
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return False
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class TypeInfo(BaseInfo):
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"""Registry information about a type. No additional state
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beyond BaseInfo is required."""
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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 getMembers(self):
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"""Get a collection of all member elements for this type, if any."""
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return self.elem.findall('member')
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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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class GroupInfo(BaseInfo):
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"""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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def __init__(self, elem):
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BaseInfo.__init__(self, elem)
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class EnumInfo(BaseInfo):
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"""Registry information about an 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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"""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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if self.type is None:
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self.type = ''
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class CmdInfo(BaseInfo):
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"""Registry information about a 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 getParams(self):
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"""Get a collection of all param elements for this command, if any."""
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return self.elem.findall('param')
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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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class FeatureInfo(BaseInfo):
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"""Registry information about an API <feature>
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or <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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"feature name string (e.g. 'VK_KHR_surface')"
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self.emit = False
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"has this feature been defined already?"
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self.sortorder = int(elem.get('sortorder', 0))
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"""explicit numeric sort key within feature and extension groups.
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Defaults to 0."""
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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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# Element category (vendor) is meaningless for <feature>
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self.category = 'VERSION'
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"""category, e.g. VERSION or khr/vendor tag"""
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self.version = elem.get('name')
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"""feature name string"""
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self.versionNumber = elem.get('number')
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"""versionNumber - API version number, taken from the 'number'
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attribute of <feature>. Extensions do not have API version
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numbers and are assigned number 0."""
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self.number = 0
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self.supported = None
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else:
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# Extract vendor portion of <APIprefix>_<vendor>_<name>
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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 = int(elem.get('number','0'))
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"""extension number, used for ordering and for assigning
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enumerant offsets. <feature> features do not have extension
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numbers and are assigned number 0, as are extensions without
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numbers, so sorting works."""
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self.supported = elem.get('supported', 'disabled')
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class SpirvInfo(BaseInfo):
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"""Registry information about an API <spirvextensions>
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or <spirvcapability>."""
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def __init__(self, elem):
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BaseInfo.__init__(self, elem)
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class FormatInfo(BaseInfo):
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"""Registry information about an API <format>."""
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def __init__(self, elem, condition):
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BaseInfo.__init__(self, elem)
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# Need to save the condition here when it is known
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self.condition = condition
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class Registry:
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"""Object representing an API registry, loaded from an XML file."""
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def __init__(self, gen=None, genOpts=None):
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if gen is None:
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# If not specified, give a default object so messaging will work
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self.gen = OutputGenerator()
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else:
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self.gen = gen
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"Output generator used to write headers / messages"
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if genOpts is None:
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# If no generator is provided, we may still need the XML API name
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# (for example, in genRef.py).
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self.genOpts = GeneratorOptions(apiname = APIConventions().xml_api_name)
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else:
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self.genOpts = genOpts
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"Options controlling features to write and how to format them"
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self.gen.registry = self
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self.gen.genOpts = self.genOpts
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self.gen.genOpts.registry = self
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self.tree = None
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"ElementTree containing the root `<registry>`"
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self.typedict = {}
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"dictionary of TypeInfo objects keyed by type name"
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self.groupdict = {}
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"dictionary of GroupInfo objects keyed by group name"
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self.enumdict = {}
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"dictionary of EnumInfo objects keyed by enum name"
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self.cmddict = {}
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"dictionary of CmdInfo objects keyed by command name"
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self.apidict = {}
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"dictionary of FeatureInfo objects for `<feature>` elements keyed by API name"
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self.extensions = []
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"list of `<extension>` Elements"
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self.extdict = {}
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"dictionary of FeatureInfo objects for `<extension>` elements keyed by extension name"
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self.spirvextdict = {}
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"dictionary of FeatureInfo objects for `<spirvextension>` elements keyed by spirv extension name"
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self.spirvcapdict = {}
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"dictionary of FeatureInfo objects for `<spirvcapability>` elements keyed by spirv capability name"
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self.formatsdict = {}
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"dictionary of FeatureInfo objects for `<format>` elements keyed by VkFormat name"
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self.emitFeatures = False
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"""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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self.breakPat = None
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"regexp pattern to break on when generating names"
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# self.breakPat = re.compile('VkFenceImportFlagBits.*')
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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.filename = None
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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.filename = file
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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.
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`None` restores the default generator."""
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self.gen = gen
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self.gen.setRegistry(self)
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def addElementInfo(self, elem, info, infoName, dictionary):
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"""Add information about an element to the corresponding dictionary.
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Intended for internal use only.
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- elem - `<type>`/`<enums>`/`<enum>`/`<command>`/`<feature>`/`<extension>`/`<spirvextension>`/`<spirvcapability>`/`<format>` Element
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- info - corresponding {Type|Group|Enum|Cmd|Feature|Spirv|Format}Info object
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- infoName - 'type' / 'group' / 'enum' / 'command' / 'feature' / 'extension' / 'spirvextension' / 'spirvcapability' / 'format'
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- dictionary - self.{type|group|enum|cmd|api|ext|format|spirvext|spirvcap}dict
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The dictionary key is the element 'name' attribute."""
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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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key = elem.get('name')
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if key in dictionary:
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if not dictionary[key].compareElem(info, infoName):
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self.gen.logMsg('warn', 'Attempt to redefine', key,
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'(this should not happen)')
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else:
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dictionary[key] = info
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def lookupElementInfo(self, fname, dictionary):
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"""Find a {Type|Enum|Cmd}Info object by name.
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Intended for internal use only.
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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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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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"""Specify a feature name regexp to break on when generating features."""
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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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if self.tree is None:
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raise RuntimeError("Tree not initialized!")
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self.reg = self.tree.getroot()
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# Preprocess the tree by removing all elements with non-matching
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# 'api' attributes by breadth-first tree traversal.
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# This is a blunt hammer, but eliminates the need to track and test
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# the apis deeper in processing to select the correct elements and
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# avoid duplicates.
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# Schema validation should prevent duplicate elements with
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# overlapping api attributes, or where one element has an api
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# attribute and the other does not.
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stripNonmatchingAPIs(self.reg, self.genOpts.apiname, actuallyDelete = True)
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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 is 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> does not 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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name_elem = type_elem.find('name')
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if name_elem is None or not name_elem.text:
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raise RuntimeError("Type without a name!")
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type_elem.set('name', name_elem.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 cannot be identified and turned into an
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# enum type definition - it is 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 is 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> does not 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_elem = cmd.find('proto/name')
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if name_elem is None or not name_elem.text:
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raise RuntimeError("Command without a name!")
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name = cmd.set('name', name_elem.text)
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|
ci = CmdInfo(cmd)
|
|
self.addElementInfo(cmd, ci, 'command', self.cmddict)
|
|
alias = cmd.get('alias')
|
|
if alias:
|
|
cmdAlias.append([name, alias, cmd])
|
|
|
|
# Now loop over aliases, injecting a copy of the aliased command's
|
|
# Element with the aliased prototype name replaced with the command
|
|
# name - if it exists.
|
|
for (name, alias, cmd) in cmdAlias:
|
|
if alias in self.cmddict:
|
|
aliasInfo = self.cmddict[alias]
|
|
cmdElem = copy.deepcopy(aliasInfo.elem)
|
|
cmdElem.find('proto/name').text = name
|
|
cmdElem.set('name', name)
|
|
cmdElem.set('alias', alias)
|
|
ci = CmdInfo(cmdElem)
|
|
# Replace the dictionary entry for the CmdInfo element
|
|
self.cmddict[name] = ci
|
|
|
|
# @ newString = etree.tostring(base, encoding="unicode").replace(aliasValue, aliasName)
|
|
# @elem.append(etree.fromstring(replacement))
|
|
else:
|
|
self.gen.logMsg('warn', 'No matching <command> found for command',
|
|
cmd.get('name'), 'alias', alias)
|
|
|
|
# Create dictionaries of API and extension interfaces
|
|
# from toplevel <api> and <extension> tags.
|
|
self.apidict = {}
|
|
format_condition = dict()
|
|
for feature in self.reg.findall('feature'):
|
|
featureInfo = FeatureInfo(feature)
|
|
self.addElementInfo(feature, featureInfo, 'feature', self.apidict)
|
|
|
|
# Add additional enums defined only in <feature> tags
|
|
# to the corresponding enumerated type.
|
|
# When seen here, the <enum> element, processed to contain the
|
|
# numeric enum value, is added to the corresponding <enums>
|
|
# element, as well as adding to the enum dictionary. It is no
|
|
# longer removed from the <require> element it is introduced in.
|
|
# Instead, generateRequiredInterface ignores <enum> elements
|
|
# that extend enumerated types.
|
|
#
|
|
# For <enum> tags which are actually just constants, if there is
|
|
# no 'extends' tag but there is a 'value' or 'bitpos' tag, just
|
|
# add an EnumInfo record to the dictionary. That works because
|
|
# output generation of constants is purely dependency-based, and
|
|
# does not need to iterate through the XML tags.
|
|
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 version number attribute to the <enum> element
|
|
enum.set('version', featureInfo.version)
|
|
# 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(copy.deepcopy(enum))
|
|
else:
|
|
self.gen.logMsg('warn', 'NO matching group',
|
|
groupName, 'for enum', enum.get('name'), 'found.')
|
|
if groupName == "VkFormat":
|
|
format_name = enum.get('name')
|
|
if enum.get('alias'):
|
|
format_name = enum.get('alias')
|
|
format_condition[format_name] = featureInfo.name
|
|
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)
|
|
|
|
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', str(featureInfo.number))
|
|
|
|
enum.set('extname', featureInfo.name)
|
|
enum.set('supported', noneStr(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(copy.deepcopy(enum))
|
|
else:
|
|
self.gen.logMsg('warn', 'NO matching group',
|
|
groupName, 'for enum', enum.get('name'), 'found.')
|
|
# This is Vulkan-specific
|
|
if groupName == "VkFormat":
|
|
format_name = enum.get('name')
|
|
if enum.get('alias'):
|
|
format_name = enum.get('alias')
|
|
if format_name in format_condition:
|
|
format_condition[format_name] += "," + featureInfo.name
|
|
else:
|
|
format_condition[format_name] = featureInfo.name
|
|
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:
|
|
# The structure type this may be chained to.
|
|
struct_extends = type_elem.get('structextends')
|
|
if struct_extends is not None:
|
|
for parent in struct_extends.split(','):
|
|
# self.gen.logMsg('diag', type.get('name'), 'extends', parent)
|
|
self.validextensionstructs[parent].append(type_elem.get('name'))
|
|
# Sort the lists so they do not depend on the XML order
|
|
for parent in self.validextensionstructs:
|
|
self.validextensionstructs[parent].sort()
|
|
|
|
# Parse out all spirv tags in dictionaries
|
|
# Use addElementInfo to catch duplicates
|
|
for spirv in self.reg.findall('spirvextensions/spirvextension'):
|
|
spirvInfo = SpirvInfo(spirv)
|
|
self.addElementInfo(spirv, spirvInfo, 'spirvextension', self.spirvextdict)
|
|
for spirv in self.reg.findall('spirvcapabilities/spirvcapability'):
|
|
spirvInfo = SpirvInfo(spirv)
|
|
self.addElementInfo(spirv, spirvInfo, 'spirvcapability', self.spirvcapdict)
|
|
|
|
for format in self.reg.findall('formats/format'):
|
|
condition = None
|
|
format_name = format.get('name')
|
|
if format_name in format_condition:
|
|
condition = format_condition[format_name]
|
|
formatInfo = FormatInfo(format, condition)
|
|
self.addElementInfo(format, formatInfo, 'format', self.formatsdict)
|
|
|
|
def dumpReg(self, maxlen=120, filehandle=sys.stdout):
|
|
"""Dump all the dictionaries constructed from the Registry object.
|
|
|
|
Diagnostic to dump the dictionaries to specified file handle (default stdout).
|
|
Truncates type / enum / command elements to maxlen characters (default 120)"""
|
|
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('// SPIR-V', file=filehandle)
|
|
for key in self.spirvextdict:
|
|
write(' SPIR-V Extension', key, '->',
|
|
etree.tostring(self.spirvextdict[key].elem)[0:maxlen], file=filehandle)
|
|
for key in self.spirvcapdict:
|
|
write(' SPIR-V Capability', key, '->',
|
|
etree.tostring(self.spirvcapdict[key].elem)[0:maxlen], file=filehandle)
|
|
write('// VkFormat', file=filehandle)
|
|
for key in self.formatsdict:
|
|
write(' VkFormat', key, '->',
|
|
etree.tostring(self.formatsdict[key].elem)[0:maxlen], file=filehandle)
|
|
|
|
def markTypeRequired(self, typename, required):
|
|
"""Require (along with its dependencies) or remove (but not its dependencies) a type.
|
|
|
|
- typename - name of type
|
|
- required - boolean (to tag features as required or not)
|
|
"""
|
|
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)
|
|
# Do not 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')
|
|
|
|
def markEnumRequired(self, enumname, required):
|
|
"""Mark an enum as required or not.
|
|
|
|
- enumname - name of enum
|
|
- required - boolean (to tag features as required or not)"""
|
|
|
|
self.gen.logMsg('diag', 'markEnumRequired: tagging enum:', enumname, '-> required =', required)
|
|
enum = self.lookupElementInfo(enumname, self.enumdict)
|
|
if enum is not None:
|
|
# If the enum is part of a group, and is being removed, then
|
|
# look it up in that <enums> tag and remove the Element there,
|
|
# so that it is not visible to generators (which traverse the
|
|
# <enums> tag elements rather than using the dictionaries).
|
|
if not required:
|
|
groupName = enum.elem.get('extends')
|
|
if groupName is not None:
|
|
self.gen.logMsg('diag', f'markEnumRequired: Removing extending enum {enum.elem.get("name")}')
|
|
|
|
# Look up the Info with matching groupName
|
|
if groupName in self.groupdict:
|
|
gi = self.groupdict[groupName]
|
|
gienum = gi.elem.find("enum[@name='" + enumname + "']")
|
|
if gienum is not None:
|
|
# Remove copy of this enum from the group
|
|
gi.elem.remove(gienum)
|
|
else:
|
|
self.gen.logMsg('warn', 'markEnumRequired: Cannot remove enum',
|
|
enumname, 'not found in group',
|
|
groupName)
|
|
else:
|
|
self.gen.logMsg('warn', 'markEnumRequired: Cannot remove enum',
|
|
enumname, 'from nonexistent group',
|
|
groupName)
|
|
else:
|
|
# This enum is not an extending enum.
|
|
# The XML tree must be searched for all <enums> that
|
|
# might have it, so we know the parent to delete from.
|
|
|
|
enumName = enum.elem.get('name')
|
|
|
|
self.gen.logMsg('diag', f'markEnumRequired: Removing non-extending enum {enumName}')
|
|
|
|
count = 0
|
|
for enums in self.reg.findall('enums'):
|
|
for thisEnum in enums.findall('enum'):
|
|
if thisEnum.get('name') == enumName:
|
|
# Actually remove it
|
|
count = count + 1
|
|
enums.remove(thisEnum)
|
|
|
|
if count == 0:
|
|
self.gen.logMsg('warn', f'markEnumRequired: {enumName}) not found in any <enums> tag')
|
|
|
|
enum.required = required
|
|
# Tag enum dependencies in 'alias' attribute as required
|
|
depname = enum.elem.get('alias')
|
|
if depname:
|
|
self.gen.logMsg('diag', 'markEnumRequired: Generating dependent enum',
|
|
depname, 'for alias', enumname, 'required =', enum.required)
|
|
self.markEnumRequired(depname, required)
|
|
else:
|
|
self.gen.logMsg('warn', f'markEnumRequired: {enumname} IS NOT DEFINED')
|
|
|
|
def markCmdRequired(self, cmdname, required):
|
|
"""Mark a command as required or not.
|
|
|
|
- cmdname - name of command
|
|
- required - boolean (to tag features as required or not)"""
|
|
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
|
|
#
|
|
# This is usually not done, because command 'aliases' are not
|
|
# actual C language aliases like type and enum aliases. Instead
|
|
# they are just duplicates of the function signature of the
|
|
# alias. This means that there is no dependency of a command
|
|
# alias on what it aliases. One exception is validity includes,
|
|
# where the spec markup needs the promoted-to validity include
|
|
# even if only the promoted-from command is being built.
|
|
if self.genOpts.requireCommandAliases:
|
|
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')
|
|
|
|
def markRequired(self, featurename, feature, required):
|
|
"""Require or remove features specified in the Element.
|
|
|
|
- featurename - name of the feature
|
|
- feature - Element for `<require>` or `<remove>` tag
|
|
- required - boolean (to tag features as required or not)"""
|
|
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 is 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')
|
|
|
|
def getAlias(self, elem, dict):
|
|
"""Check for an alias in the same require block.
|
|
|
|
- elem - Element to check for an alias"""
|
|
|
|
# Try to find an alias
|
|
alias = elem.get('alias')
|
|
if alias is None:
|
|
name = elem.get('name')
|
|
typeinfo = self.lookupElementInfo(name, dict)
|
|
alias = typeinfo.elem.get('alias')
|
|
|
|
return alias
|
|
|
|
def checkForCorrectionAliases(self, alias, require, tag):
|
|
"""Check for an alias in the same require block.
|
|
|
|
- alias - String name of the alias
|
|
- require - `<require>` block from the registry
|
|
- tag - tag to look for in the require block"""
|
|
|
|
# For the time being, the code below is bypassed. It has the effect
|
|
# of excluding "spelling aliases" created to comply with the style
|
|
# guide, but this leaves references out of the specification and
|
|
# causes broken internal links.
|
|
#
|
|
# if alias and require.findall(tag + "[@name='" + alias + "']"):
|
|
# return True
|
|
|
|
return False
|
|
|
|
def fillFeatureDictionary(self, interface, featurename, api, profile):
|
|
"""Capture added interfaces for a `<version>` or `<extension>`.
|
|
|
|
- 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"""
|
|
|
|
# Explicitly initialize known types - errors for unhandled categories
|
|
self.gen.featureDictionary[featurename] = {
|
|
"enumconstant": {},
|
|
"command": {},
|
|
"enum": {},
|
|
"struct": {},
|
|
"handle": {},
|
|
"basetype": {},
|
|
"include": {},
|
|
"define": {},
|
|
"bitmask": {},
|
|
"union": {},
|
|
"funcpointer": {},
|
|
}
|
|
|
|
# <require> marks things that are required by this version/profile
|
|
for require in interface.findall('require'):
|
|
if matchAPIProfile(api, profile, require):
|
|
|
|
# Determine the required extension or version needed for a require block
|
|
# Assumes that only one of these is specified
|
|
# 'extension', and therefore 'required_key', may be a boolean
|
|
# expression of extension names.
|
|
# 'required_key' is used only as a dictionary key at
|
|
# present, and passed through to the script generators, so
|
|
# they must be prepared to parse that expression.
|
|
required_key = require.get('feature')
|
|
if required_key is None:
|
|
required_key = require.get('extension')
|
|
|
|
# Loop over types, enums, and commands in the tag
|
|
for typeElem in require.findall('type'):
|
|
typename = typeElem.get('name')
|
|
typeinfo = self.lookupElementInfo(typename, self.typedict)
|
|
|
|
if typeinfo:
|
|
# Remove aliases in the same extension/feature; these are always added as a correction. Do not need the original to be visible.
|
|
alias = self.getAlias(typeElem, self.typedict)
|
|
if not self.checkForCorrectionAliases(alias, require, 'type'):
|
|
# Resolve the type info to the actual type, so we get an accurate read for 'structextends'
|
|
while alias:
|
|
typeinfo = self.lookupElementInfo(alias, self.typedict)
|
|
alias = typeinfo.elem.get('alias')
|
|
|
|
typecat = typeinfo.elem.get('category')
|
|
typeextends = typeinfo.elem.get('structextends')
|
|
if not required_key in self.gen.featureDictionary[featurename][typecat]:
|
|
self.gen.featureDictionary[featurename][typecat][required_key] = {}
|
|
if not typeextends in self.gen.featureDictionary[featurename][typecat][required_key]:
|
|
self.gen.featureDictionary[featurename][typecat][required_key][typeextends] = []
|
|
self.gen.featureDictionary[featurename][typecat][required_key][typeextends].append(typename)
|
|
else:
|
|
self.gen.logMsg('warn', 'fillFeatureDictionary: NOT filling for {}'.format(typename))
|
|
|
|
|
|
for enumElem in require.findall('enum'):
|
|
enumname = enumElem.get('name')
|
|
typeinfo = self.lookupElementInfo(enumname, self.enumdict)
|
|
|
|
# Remove aliases in the same extension/feature; these are always added as a correction. Do not need the original to be visible.
|
|
alias = self.getAlias(enumElem, self.enumdict)
|
|
if not self.checkForCorrectionAliases(alias, require, 'enum'):
|
|
enumextends = enumElem.get('extends')
|
|
if not required_key in self.gen.featureDictionary[featurename]['enumconstant']:
|
|
self.gen.featureDictionary[featurename]['enumconstant'][required_key] = {}
|
|
if not enumextends in self.gen.featureDictionary[featurename]['enumconstant'][required_key]:
|
|
self.gen.featureDictionary[featurename]['enumconstant'][required_key][enumextends] = []
|
|
self.gen.featureDictionary[featurename]['enumconstant'][required_key][enumextends].append(enumname)
|
|
else:
|
|
self.gen.logMsg('warn', 'fillFeatureDictionary: NOT filling for {}'.format(typename))
|
|
|
|
for cmdElem in require.findall('command'):
|
|
# Remove aliases in the same extension/feature; these are always added as a correction. Do not need the original to be visible.
|
|
alias = self.getAlias(cmdElem, self.cmddict)
|
|
if not self.checkForCorrectionAliases(alias, require, 'command'):
|
|
if not required_key in self.gen.featureDictionary[featurename]['command']:
|
|
self.gen.featureDictionary[featurename]['command'][required_key] = []
|
|
self.gen.featureDictionary[featurename]['command'][required_key].append(cmdElem.get('name'))
|
|
else:
|
|
self.gen.logMsg('warn', 'fillFeatureDictionary: NOT filling for {}'.format(typename))
|
|
|
|
def requireFeatures(self, interface, featurename, api, profile):
|
|
"""Process `<require>` tags for a `<version>` or `<extension>`.
|
|
|
|
- interface - Element for `<version>` or `<extension>`, containing
|
|
`<require>` tags
|
|
- featurename - name of the feature
|
|
- api - string specifying API name being generated
|
|
- profile - string specifying API profile being generated"""
|
|
|
|
# <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)
|
|
|
|
def removeFeatures(self, interface, featurename, api, profile):
|
|
"""Process `<remove>` tags for a `<version>` or `<extension>`.
|
|
|
|
- interface - Element for `<version>` or `<extension>`, containing
|
|
`<remove>` tags
|
|
- featurename - name of the feature
|
|
- api - string specifying API name being generated
|
|
- profile - string specifying API profile being generated"""
|
|
|
|
# <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))
|
|
|
|
def removeAdditionalValidity(self, interface, api, profile):
|
|
# 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))
|
|
|
|
def generateFeature(self, fname, ftype, dictionary):
|
|
"""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"""
|
|
|
|
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 is not 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 are 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()
|
|
supported_list = elem.get('supported').split(",")
|
|
if self.genOpts.defaultExtensions in supported_list:
|
|
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 is 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 is None:
|
|
raise RuntimeError("Should not get here")
|
|
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)
|
|
if genProc is None:
|
|
raise RuntimeError("genProc is None when we should be emitting")
|
|
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)
|
|
|
|
def generateRequiredInterface(self, interface):
|
|
"""Generate all interfaces required by an API version or extension.
|
|
|
|
- interface - Element for `<version>` or `<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'):
|
|
# If this is an enum extending an enumerated type, do not
|
|
# generate it - this has already been done in reg.parseTree,
|
|
# by copying this element into the enumerated type.
|
|
enumextends = e.get('extends')
|
|
if not enumextends:
|
|
self.generateFeature(e.get('name'), 'enum', self.enumdict)
|
|
for c in features.findall('command'):
|
|
self.generateFeature(c.get('name'), 'command', self.cmddict)
|
|
|
|
def generateSpirv(self, spirv, dictionary):
|
|
if spirv is None:
|
|
self.gen.logMsg('diag', 'No entry found for element', name,
|
|
'returning!')
|
|
return
|
|
|
|
name = spirv.elem.get('name')
|
|
# No known alias for spirv elements
|
|
alias = None
|
|
if spirv.emit:
|
|
genProc = self.gen.genSpirv
|
|
genProc(spirv, name, alias)
|
|
|
|
def stripUnsupportedAPIs(self, dictionary, attribute, supportedDictionary):
|
|
"""Strip unsupported APIs from attributes of APIs.
|
|
dictionary - *Info dictionary of APIs to be updated
|
|
attribute - attribute name to look for in each API
|
|
supportedDictionary - dictionary in which to look for supported
|
|
API elements in the attribute"""
|
|
|
|
for key in dictionary:
|
|
eleminfo = dictionary[key]
|
|
attribstring = eleminfo.elem.get(attribute)
|
|
if attribstring is not None:
|
|
apis = []
|
|
stripped = False
|
|
for api in attribstring.split(','):
|
|
##print('Checking API {} referenced by {}'.format(api, key))
|
|
if supportedDictionary[api].required:
|
|
apis.append(api)
|
|
else:
|
|
stripped = True
|
|
##print('\t**STRIPPING API {} from {}'.format(api, key))
|
|
|
|
# Update the attribute after stripping stuff.
|
|
# Could sort apis before joining, but it is not a clear win
|
|
if stripped:
|
|
eleminfo.elem.set(attribute, ','.join(apis))
|
|
|
|
def generateFormat(self, format, dictionary):
|
|
if format is None:
|
|
self.gen.logMsg('diag', 'No entry found for format element',
|
|
'returning!')
|
|
return
|
|
|
|
name = format.elem.get('name')
|
|
# No known alias for VkFormat elements
|
|
alias = None
|
|
if format.emit:
|
|
genProc = self.gen.genFormat
|
|
genProc(format, name, alias)
|
|
|
|
def apiGen(self):
|
|
"""Generate interface for specified versions using the current
|
|
generator and generator options"""
|
|
|
|
self.gen.logMsg('diag', '*******************************************')
|
|
self.gen.logMsg('diag', ' Registry.apiGen file:', self.genOpts.filename,
|
|
'api:', self.genOpts.apiname,
|
|
'profile:', self.genOpts.profile)
|
|
self.gen.logMsg('diag', '*******************************************')
|
|
|
|
# Could reset required/declared flags for all features here.
|
|
# This has been removed as never used. The initial motivation was
|
|
# the idea of calling apiGen() repeatedly for different targets, but
|
|
# this has never been done. The 20% or so build-time speedup that
|
|
# might result is not worth the effort to make it actually work.
|
|
#
|
|
# 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)
|
|
regEmitSpirv = re.compile(self.genOpts.emitSpirv)
|
|
regEmitFormats = re.compile(self.genOpts.emitFormats)
|
|
|
|
# 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 apiNameMatch(self.genOpts.apiname, api):
|
|
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 whose 'supported' attributes match 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 is
|
|
# exactly matched by the 'supported' attribute.
|
|
if apiNameMatch(self.genOpts.defaultExtensions,
|
|
ei.elem.get('supported')):
|
|
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 are not
|
|
# tagged appropriately in the registry.
|
|
# However, we still respect the 'supported' attribute.
|
|
if regAddExtensions.match(extName) is not None:
|
|
if not apiNameMatch(self.genOpts.apiname, ei.elem.get('supported')):
|
|
self.gen.logMsg('diag', 'NOT including extension',
|
|
extName, '(matches explicitly requested, but does not match the \'supported\' attribute)')
|
|
include = False
|
|
else:
|
|
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 are 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 am 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)')
|
|
|
|
# Add all spirv elements to list
|
|
# generators decide to emit them all or not
|
|
# Currently no filtering as no client of these elements needs filtering
|
|
spirvexts = []
|
|
for key in self.spirvextdict:
|
|
si = self.spirvextdict[key]
|
|
si.emit = (regEmitSpirv.match(key) is not None)
|
|
spirvexts.append(si)
|
|
spirvcaps = []
|
|
for key in self.spirvcapdict:
|
|
si = self.spirvcapdict[key]
|
|
si.emit = (regEmitSpirv.match(key) is not None)
|
|
spirvcaps.append(si)
|
|
|
|
formats = []
|
|
for key in self.formatsdict:
|
|
si = self.formatsdict[key]
|
|
si.emit = (regEmitFormats.match(key) is not None)
|
|
formats.append(si)
|
|
|
|
# Sort the features list, if a sort procedure is defined
|
|
if self.genOpts.sortProcedure:
|
|
self.genOpts.sortProcedure(features)
|
|
|
|
# Passes 1+2: 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). <remove>s are processed
|
|
# after all <require>s, so removals win.
|
|
# 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 features for', f.name)
|
|
self.fillFeatureDictionary(f.elem, f.name, self.genOpts.apiname, self.genOpts.profile)
|
|
self.requireFeatures(f.elem, f.name, self.genOpts.apiname, self.genOpts.profile)
|
|
self.assignAdditionalValidity(f.elem, self.genOpts.apiname, self.genOpts.profile)
|
|
|
|
for f in features:
|
|
self.gen.logMsg('diag', 'PASS 2: Tagging removed features for', f.name)
|
|
self.removeFeatures(f.elem, f.name, self.genOpts.apiname, self.genOpts.profile)
|
|
self.removeAdditionalValidity(f.elem, self.genOpts.apiname, self.genOpts.profile)
|
|
|
|
# Now, strip references to APIs that are not required.
|
|
# At present such references may occur in:
|
|
# Structs in <type category="struct"> 'structextends' attributes
|
|
# Enums in <command> 'successcodes' and 'errorcodes' attributes
|
|
self.stripUnsupportedAPIs(self.typedict, 'structextends', self.typedict)
|
|
self.stripUnsupportedAPIs(self.cmddict, 'successcodes', self.enumdict)
|
|
self.stripUnsupportedAPIs(self.cmddict, 'errorcodes', self.enumdict)
|
|
|
|
# @@May need to strip <spirvcapability> / <spirvextension> <enable>
|
|
# tags of these forms:
|
|
# <enable version="VK_API_VERSION_1_0"/>
|
|
# <enable struct="VkPhysicalDeviceFeatures" feature="geometryShader" requires="VK_VERSION_1_0"/>
|
|
# <enable extension="VK_KHR_shader_draw_parameters"/>
|
|
# <enable property="VkPhysicalDeviceVulkan12Properties" member="shaderDenormPreserveFloat16" value="VK_TRUE" requires="VK_VERSION_1_2,VK_KHR_shader_float_controls"/>
|
|
|
|
# Pass 3: loop over specified API versions and extensions printing
|
|
# declarations for required things which have not already been
|
|
# generated.
|
|
self.gen.logMsg('diag', 'PASS 3: GENERATE INTERFACES FOR FEATURES')
|
|
self.gen.beginFile(self.genOpts)
|
|
for f in features:
|
|
self.gen.logMsg('diag', 'PASS 3: Generating interface for',
|
|
f.name)
|
|
emit = self.emitFeatures = f.emit
|
|
if not emit:
|
|
self.gen.logMsg('diag', 'PASS 3: 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 have not been).
|
|
self.gen.beginFeature(f.elem, emit)
|
|
self.generateRequiredInterface(f.elem)
|
|
self.gen.endFeature()
|
|
# Generate spirv elements
|
|
for s in spirvexts:
|
|
self.generateSpirv(s, self.spirvextdict)
|
|
for s in spirvcaps:
|
|
self.generateSpirv(s, self.spirvcapdict)
|
|
for s in formats:
|
|
self.generateFormat(s, self.formatsdict)
|
|
self.gen.endFile()
|
|
|
|
def apiReset(self):
|
|
"""Reset type/enum/command dictionaries before generating another API.
|
|
|
|
Use between apiGen() calls to reset internal state."""
|
|
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()
|