def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
if interface.tag != 'extension':
self.logMsg('diag', 'beginFeature: ignoring non-extension feature', self.featureName)
return
# These attributes must exist
name = self.featureName
number = self.getAttrib(interface, 'number')
ext_type = self.getAttrib(interface, 'type')
revision = self.getSpecVersion(interface, name)
# These attributes are optional
OPTIONAL = False
requires = self.getAttrib(interface, 'requires', OPTIONAL)
requiresCore = self.getAttrib(interface, 'requiresCore', OPTIONAL, '1.0')
contact = self.getAttrib(interface, 'contact', OPTIONAL)
promotedTo = self.getAttrib(interface, 'promotedto', OPTIONAL)
deprecatedBy = self.getAttrib(interface, 'deprecatedby', OPTIONAL)
obsoletedBy = self.getAttrib(interface, 'obsoletedby', OPTIONAL)
provisional = self.getAttrib(interface, 'provisional', OPTIONAL, 'false')
filename = self.directory + '/' + name + self.file_suffix
self.extensions.append( Extension(self, filename, name, number, ext_type, requires, requiresCore, contact, promotedTo, deprecatedBy, obsoletedBy, provisional, revision) )
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
if interface.tag != 'extension':
self.logMsg('diag', 'beginFeature: ignoring non-extension feature', self.featureName)
return
# These attributes must exist
name = self.featureName
number = self.getAttrib(interface, 'number')
ext_type = self.getAttrib(interface, 'type')
revision = self.getSpecVersion(interface, name)
# These attributes are optional
OPTIONAL = False
requires = self.getAttrib(interface, 'requires', OPTIONAL)
requiresCore = self.getAttrib(interface, 'requiresCore', OPTIONAL, '1.0')
contact = self.getAttrib(interface, 'contact', OPTIONAL)
promotedTo = self.getAttrib(interface, 'promotedto', OPTIONAL)
deprecatedBy = self.getAttrib(interface, 'deprecatedby', OPTIONAL)
obsoletedBy = self.getAttrib(interface, 'obsoletedby', OPTIONAL)
provisional = self.getAttrib(interface, 'provisional', OPTIONAL, 'false')
filename = self.directory + '/' + name + self.file_suffix
self.extensions.append( Extension(self, filename, name, number, ext_type, requires, requiresCore, contact, promotedTo, deprecatedBy, obsoletedBy, provisional, revision) )
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Accumulate function pointers and function pointer initialization
self.featurePointers = []
self.featurePointerInitializersInstance = []
self.featurePointerInitializersDevice = []
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# C-specific
# Accumulate includes, defines, types, enums, function pointer typedefs,
# end function prototypes separately for this feature. They're only
# printed in endFeature().
self.sections = {section: [] for section in self.ALL_SECTIONS}
self.feature_not_empty = False
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# C-specific
# Accumulate includes, defines, types, enums, function pointer typedefs,
# end function prototypes separately for this feature. They are only
# printed in endFeature().
self.sections = {section: [] for section in self.ALL_SECTIONS}
self.feature_not_empty = False
def beginFeature(self, interface, emit):
OutputGenerator.beginFeature(self, interface, emit)
self.currentFeature = "// {0}".format(interface.attrib['name'])
self.sections = dict([(section, []) for section in self.ALL_SECTIONS])
self.opaqueStruct.clear()
self.surfaceExtensionVersionIndent = ""
self.isSurfaceExtension = self.currentFeature in self.surfaceExtensions
if self.isSurfaceExtension:
self.surfaceExtensionVersionIndent = "\t"
def beginFeature(self, interface, emit):
OutputGenerator.beginFeature(self, interface, emit)
self.currentFeature = "// {0}".format(interface.attrib['name'])
self.sections = dict([(section, []) for section in self.ALL_SECTIONS])
self.opaqueStruct.clear()
self.surfaceExtensionVersionIndent = ""
self.isSurfaceExtension = self.currentFeature in self.surfaceExtensions
if self.isSurfaceExtension:
self.surfaceExtensionVersionIndent = "\t"
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Verify that each extension has a unique number during doc generation
extension_number = interface.get('number')
if extension_number is not None and extension_number != "0":
if extension_number in self.extension_numbers:
self.logMsg('error', 'Duplicate extension number ', extension_number, ' detected in feature ', interface.get('name'), '\n')
exit(1)
else:
self.extension_numbers.append(extension_number)
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Verify that each extension has a unique number during doc generation
extension_number = interface.get('number')
if extension_number is not None and extension_number != "0":
if extension_number in self.extension_numbers:
self.logMsg('error', 'Duplicate extension number ', extension_number, ' detected in feature ', interface.get('name'), '\n')
exit(1)
else:
self.extension_numbers.add(extension_number)
def beginFeature(self, interface, emit):
OutputGenerator.beginFeature(self, interface, emit)
#if interface.attrib.get( 'protect' ):
#write( interface.attrib[ 'name' ], file = self.testsFile )
self.currentFeature = "// {0}".format(interface.attrib['name'])
self.sections = dict([(section, []) for section in self.ALL_SECTIONS])
self.opaqueStruct.clear()
self.platformExtensionVersionIndent = ""
self.isPlatformExtension = self.currentFeature in self.platformExtensions
if self.isPlatformExtension:
self.platformExtensionVersionIndent = "\t"
def beginFeature( self, interface, emit ):
OutputGenerator.beginFeature( self, interface, emit )
#if interface.attrib.get( 'protect' ):
#write( interface.attrib[ 'name' ], file = self.testsFile )
self.currentFeature = "// {0}".format( interface.attrib[ 'name' ] )
self.sections = dict( [ ( section, [] ) for section in self.ALL_SECTIONS ] )
self.opaqueStruct.clear()
self.platformExtensionVersionIndent = ""
self.isPlatformExtension = self.currentFeature in self.platformExtensions
if self.isPlatformExtension:
self.platformExtensionVersionIndent = "\t"
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Reset feature specific data sets
if self.processStructs:
self.featureStructMembers = dict()
self.featureStructAliases = dict()
if self.processCmds:
self.featureCmdParams = dict()
# Some generation cases require that extra feature protection be suppressed
if self.genOpts.protectFeature:
self.featureExtraProtect = self.__getFeatureProtect(interface)
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Decide if we're in a core <feature> or an <extension>
self.in_core = (interface.tag == 'feature')
# Verify that each <extension> has a unique number during doc
# generation
# TODO move this to consistency_tools
if not self.in_core:
extension_number = interface.get('number')
if extension_number is not None and extension_number != "0":
if extension_number in self.extension_numbers:
self.logMsg('error', 'Duplicate extension number ', extension_number, ' detected in feature ', interface.get('name'), '\n')
exit(1)
else:
self.extension_numbers.add(extension_number)
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Decide if we're in core or an extension
name = interface.get('name')
self.in_core = name.startswith(self.conventions.api_version_prefix)
# Verify that each extension has a unique number during doc generation
# TODO move this to consistency_tools
extension_number = interface.get('number')
if extension_number is not None and extension_number != "0":
if extension_number in self.extension_numbers:
self.logMsg('error', 'Duplicate extension number ',
extension_number, ' detected in feature ',
interface.get('name'), '\n')
exit(1)
else:
self.extension_numbers.add(extension_number)
class Registry:
"""Represents an API registry loaded from XML"""
def __init__(self):
self.tree = None
self.typedict = {}
self.groupdict = {}
self.enumdict = {}
self.cmddict = {}
self.apidict = {}
self.extensions = []
self.extdict = {}
# A default output generator, so commands prior to apiGen can report
# errors via the generator object.
self.gen = OutputGenerator()
self.genOpts = None
self.emitFeatures = False
def loadElementTree(self, tree):
"""Load ElementTree into a Registry object and parse it"""
self.tree = tree
self.parseTree()
def loadFile(self, file):
"""Load an API registry XML file into a Registry object and parse it"""
self.tree = etree.parse(file)
self.parseTree()
def setGenerator(self, gen):
"""Specify output generator object. None restores the default generator"""
self.gen = gen
self.gen.setRegistry(self)
# addElementInfo - add information about an element to the
# corresponding dictionary
# elem - <type>/<enums>/<enum>/<command>/<feature>/<extension> Element
# info - corresponding {Type|Group|Enum|Cmd|Feature}Info object
# infoName - 'type' / 'group' / 'enum' / 'command' / 'feature' / 'extension'
# dictionary - self.{type|group|enum|cmd|api|ext}dict
# If the Element has an 'api' attribute, the dictionary key is the
# tuple (name,api). If not, the key is the name. 'name' is an
# attribute of the Element
def addElementInfo(self, elem, info, infoName, dictionary):
if ('api' in elem.attrib):
key = (elem.get('name'), elem.get('api'))
else:
key = elem.get('name')
if key in dictionary:
self.gen.logMsg('warn', '*** Attempt to redefine', infoName,
'with key:', key)
else:
dictionary[key] = info
#
# lookupElementInfo - find a {Type|Enum|Cmd}Info object by name.
# If an object qualified by API name exists, use that.
# fname - name of type / enum / command
# dictionary - self.{type|enum|cmd}dict
def lookupElementInfo(self, fname, dictionary):
key = (fname, self.genOpts.apiname)
if (key in dictionary):
# self.gen.logMsg('diag', 'Found API-specific element for feature', fname)
return dictionary[key]
elif (fname in dictionary):
# self.gen.logMsg('diag', 'Found generic element for feature', fname)
return dictionary[fname]
else:
return None
def parseTree(self):
"""Parse the registry Element, once created"""
# This must be the Element for the root <registry>
self.reg = self.tree.getroot()
#
# Create dictionary of registry types from toplevel <types> tags
# and add 'name' attribute to each <type> tag (where missing)
# based on its <name> element.
#
# There's usually one <types> block; more are OK
# Required <type> attributes: 'name' or nested <name> tag contents
self.typedict = {}
for type in self.reg.findall('types/type'):
# If the <type> doesn't already have a 'name' attribute, set
# it from contents of its <name> tag.
if (type.get('name') == None):
type.attrib['name'] = type.find('name').text
self.addElementInfo(type, TypeInfo(type), 'type', self.typedict)
#
# Create dictionary of registry enum groups from <enums> tags.
#
# Required <enums> attributes: 'name'. If no name is given, one is
# generated, but that group can't be identified and turned into an
# enum type definition - it's just a container for <enum> tags.
self.groupdict = {}
for group in self.reg.findall('enums'):
self.addElementInfo(group, GroupInfo(group), 'group',
self.groupdict)
#
# Create dictionary of registry enums from <enum> tags
#
# <enums> tags usually define different namespaces for the values
# defined in those tags, but the actual names all share the
# same dictionary.
# Required <enum> attributes: 'name', 'value'
# For containing <enums> which have type="enum" or type="bitmask",
# tag all contained <enum>s are required. This is a stopgap until
# a better scheme for tagging core and extension enums is created.
self.enumdict = {}
for enums in self.reg.findall('enums'):
required = (enums.get('type') != None)
for enum in enums.findall('enum'):
enumInfo = EnumInfo(enum)
enumInfo.required = required
self.addElementInfo(enum, enumInfo, 'enum', self.enumdict)
#
# Create dictionary of registry commands from <command> tags
# and add 'name' attribute to each <command> tag (where missing)
# based on its <proto><name> element.
#
# There's usually only one <commands> block; more are OK.
# Required <command> attributes: 'name' or <proto><name> tag contents
self.cmddict = {}
for cmd in self.reg.findall('commands/command'):
# If the <command> doesn't already have a 'name' attribute, set
# it from contents of its <proto><name> tag.
if (cmd.get('name') == None):
cmd.attrib['name'] = cmd.find('proto/name').text
ci = CmdInfo(cmd)
self.addElementInfo(cmd, ci, 'command', self.cmddict)
#
# Create dictionaries of API and extension interfaces
# from toplevel <api> and <extension> tags.
#
self.apidict = {}
for feature in self.reg.findall('feature'):
featureInfo = FeatureInfo(feature)
self.addElementInfo(feature, featureInfo, 'feature', self.apidict)
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.
# 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
# *removed* from the <require> element it is introduced in.
# Not doing this will cause spurious genEnum()
# calls to be made in output generation, and it's easier
# to handle here than in genEnum().
#
# In lxml.etree, an Element can have only one parent, so the
# append() operation also removes the element. But in Python's
# ElementTree package, an Element can have multiple parents. So
# it must be explicitly removed from the <require> tag, leading
# to the nested loop traversal of <require>/<enum> elements
# below.
#
# This code also adds a 'extnumber' attribute containing the
# extension number, used for enumerant value calculation.
#
# For <enum> tags which are actually just constants, if there's
# 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
# doesn't need to iterate through the XML tags.
#
# Something like this will need to be done for 'feature's up
# above, if we use the same mechanism for adding to the core
# API in 1.1.
#
for elem in feature.findall('require'):
for enum in elem.findall('enum'):
addEnumInfo = False
groupName = enum.get('extends')
if (groupName != None):
# self.gen.logMsg('diag', '*** Found extension enum',
# enum.get('name'))
# Add extension number attribute to the <enum> element
enum.attrib['extnumber'] = featureInfo.number
enum.attrib['extname'] = featureInfo.name
enum.attrib['supported'] = featureInfo.supported
# Look up the GroupInfo with matching groupName
if (groupName in self.groupdict.keys()):
# 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')):
# 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)
def dumpReg(self, maxlen=40, 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
type = self.lookupElementInfo(typename, self.typedict)
if (type != None):
if (required):
# Tag type dependencies in 'required' attributes as
# required. This DOES NOT un-tag dependencies in a <remove>
# tag. See comments in markRequired() below for the reason.
if ('requires' in type.elem.attrib):
depType = type.elem.get('requires')
self.gen.logMsg('diag', '*** Generating dependent type',
depType, 'for type', typename)
self.markTypeRequired(depType, required)
# 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 type.elem.findall('.//type'):
self.gen.logMsg(
'diag',
'*** markRequired: type requires dependent <type>',
subtype.text)
self.markTypeRequired(subtype.text, required)
# Tag enums used in defining this type, for example in
# <member><name>member</name>[<enum>MEMBER_SIZE</enum>]</member>
for subenum in type.elem.findall('.//enum'):
self.gen.logMsg(
'diag',
'*** markRequired: type requires dependent <enum>',
subenum.text)
self.markEnumRequired(subenum.text, required)
type.required = required
else:
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 != None):
enum.required = required
else:
self.gen.logMsg('warn', '*** enum:', enumname, 'IS NOT DEFINED')
#
# features - Element for <require> or <remove> tag
# required - boolean (to tag features as required or not)
def markRequired(self, features, required):
"""Require or remove features specified in the Element"""
self.gen.logMsg(
'diag',
'*** markRequired (features = <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 features.findall('type'):
self.markTypeRequired(typeElem.get('name'), required)
for enumElem in features.findall('enum'):
self.markEnumRequired(enumElem.get('name'), required)
for cmdElem in features.findall('command'):
name = cmdElem.get('name')
self.gen.logMsg('diag', '*** tagging command:', name,
'-> required =', required)
cmd = self.lookupElementInfo(name, self.cmddict)
if (cmd != None):
cmd.required = 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 in cmd.elem.findall('.//type'):
self.gen.logMsg(
'diag',
'*** markRequired: command implicitly requires dependent type',
type.text)
self.markTypeRequired(type.text, required)
else:
self.gen.logMsg('warn', '*** command:', name, 'IS NOT DEFINED')
#
# interface - Element for <version> or <extension>, containing
# <require> and <remove> tags
# api - string specifying API name being generated
# profile - string specifying API profile being generated
def requireAndRemoveFeatures(self, interface, api, profile):
"""Process <recquire> 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(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(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):
f = self.lookupElementInfo(fname, dictionary)
if (f == 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
#
# Pull in dependent declaration(s) of the feature.
# For types, there may be one type in the 'required' attribute of
# the element, as well as many in imbedded <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 GLuint64).
genProc = None
if (ftype == 'type'):
genProc = self.gen.genType
if ('requires' in f.elem.attrib):
depname = f.elem.get('requires')
self.gen.logMsg('diag',
'*** Generating required dependent type',
depname)
self.generateFeature(depname, 'type', self.typedict)
for subtype in f.elem.findall('.//type'):
self.gen.logMsg('diag',
'*** Generating required dependent <type>',
subtype.text)
self.generateFeature(subtype.text, 'type', self.typedict)
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 (group == None):
# Unless this is tested for, it's probably fatal to call below
genProc = None
self.logMsg('warn', '*** NO MATCHING ENUM GROUP FOUND!!!')
else:
genProc = self.gen.genGroup
f = group
elif (ftype == 'command'):
genProc = self.gen.genCmd
for type in f.elem.findall('.//type'):
depname = type.text
self.gen.logMsg('diag',
'*** Generating required parameter type',
depname)
self.generateFeature(depname, 'type', self.typedict)
elif (ftype == 'enum'):
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)
else:
self.gen.logMsg('diag', '*** Skipping', ftype, fname,
'(not emitting this feature)')
#
# 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)
#
# Get all matching API versions & add to list of FeatureInfo
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.version)):
# 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.version) != 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', '*** 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):
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) != 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) != 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 = True
features.append(ei)
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, 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 type in self.typedict:
self.typedict[type].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
if ('group' in proto.attrib.keys()):
group = proto.get('group')
# self.gen.logMsg('diag', '*** Command ', funcname, ' has return group ', group)
if (group not in self.groupdict.keys()):
# self.gen.logMsg('diag', '*** Command ', funcname, ' has UNKNOWN return group ', group)
if (group not in badGroup.keys()):
badGroup[group] = 1
else:
badGroup[group] = badGroup[group] + 1
for param in cmd.findall('param'):
pname = param.find('name')
if (pname != None):
pname = pname.text
else:
pname = type.get('name')
if ('group' in param.attrib.keys()):
group = param.get('group')
if (group not in self.groupdict.keys()):
# self.gen.logMsg('diag', '*** Command ', funcname, ' param ', pname, ' has UNKNOWN group ', group)
if (group not in badGroup.keys()):
badGroup[group] = 1
else:
badGroup[group] = badGroup[group] + 1
if (len(badGroup.keys()) > 0):
self.gen.logMsg('diag', '*** SUMMARY OF UNRECOGNIZED GROUPS ***')
for key in sorted(badGroup.keys()):
self.gen.logMsg('diag', ' ', key, ' occurred ',
badGroup[key], ' times')
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Decide if we're in a core <feature> or an <extension>
self.in_core = (interface.tag == 'feature')
class Registry:
"""Represents an API registry loaded from XML"""
def __init__(self):
self.tree = None
self.typedict = {}
self.groupdict = {}
self.enumdict = {}
self.cmddict = {}
self.apidict = {}
self.extensions = []
self.extdict = {}
# A default output generator, so commands prior to apiGen can report
# errors via the generator object.
self.gen = OutputGenerator()
self.genOpts = None
self.emitFeatures = False
def loadElementTree(self, tree):
"""Load ElementTree into a Registry object and parse it"""
self.tree = tree
self.parseTree()
def loadFile(self, file):
"""Load an API registry XML file into a Registry object and parse it"""
self.tree = etree.parse(file)
self.parseTree()
def setGenerator(self, gen):
"""Specify output generator object. None restores the default generator"""
self.gen = gen
self.gen.setRegistry(self)
# addElementInfo - add information about an element to the
# corresponding dictionary
# elem - <type>/<enums>/<enum>/<command>/<feature>/<extension> Element
# info - corresponding {Type|Group|Enum|Cmd|Feature}Info object
# infoName - 'type' / 'group' / 'enum' / 'command' / 'feature' / 'extension'
# dictionary - self.{type|group|enum|cmd|api|ext}dict
# If the Element has an 'api' attribute, the dictionary key is the
# tuple (name,api). If not, the key is the name. 'name' is an
# attribute of the Element
def addElementInfo(self, elem, info, infoName, dictionary):
if ('api' in elem.attrib):
key = (elem.get('name'),elem.get('api'))
else:
key = elem.get('name')
if key in dictionary:
self.gen.logMsg('warn', '*** Attempt to redefine',
infoName, 'with key:', key)
else:
dictionary[key] = info
#
# lookupElementInfo - find a {Type|Enum|Cmd}Info object by name.
# If an object qualified by API name exists, use that.
# fname - name of type / enum / command
# dictionary - self.{type|enum|cmd}dict
def lookupElementInfo(self, fname, dictionary):
key = (fname, self.genOpts.apiname)
if (key in dictionary):
# self.gen.logMsg('diag', 'Found API-specific element for feature', fname)
return dictionary[key]
elif (fname in dictionary):
# self.gen.logMsg('diag', 'Found generic element for feature', fname)
return dictionary[fname]
else:
return None
def parseTree(self):
"""Parse the registry Element, once created"""
# This must be the Element for the root <registry>
self.reg = self.tree.getroot()
#
# Create dictionary of registry types from toplevel <types> tags
# and add 'name' attribute to each <type> tag (where missing)
# based on its <name> element.
#
# There's usually one <types> block; more are OK
# Required <type> attributes: 'name' or nested <name> tag contents
self.typedict = {}
for type in self.reg.findall('types/type'):
# If the <type> doesn't already have a 'name' attribute, set
# it from contents of its <name> tag.
if (type.get('name') == None):
type.attrib['name'] = type.find('name').text
self.addElementInfo(type, TypeInfo(type), 'type', self.typedict)
#
# Create dictionary of registry enum groups from <enums> tags.
#
# Required <enums> attributes: 'name'. If no name is given, one is
# generated, but that group can't be identified and turned into an
# enum type definition - it's just a container for <enum> tags.
self.groupdict = {}
for group in self.reg.findall('enums'):
self.addElementInfo(group, GroupInfo(group), 'group', self.groupdict)
#
# Create dictionary of registry enums from <enum> tags
#
# <enums> tags usually define different namespaces for the values
# defined in those tags, but the actual names all share the
# same dictionary.
# Required <enum> attributes: 'name', 'value'
# For containing <enums> which have type="enum" or type="bitmask",
# tag all contained <enum>s are required. This is a stopgap until
# a better scheme for tagging core and extension enums is created.
self.enumdict = {}
for enums in self.reg.findall('enums'):
required = (enums.get('type') != None)
for enum in enums.findall('enum'):
enumInfo = EnumInfo(enum)
enumInfo.required = required
self.addElementInfo(enum, enumInfo, 'enum', self.enumdict)
#
# Create dictionary of registry commands from <command> tags
# and add 'name' attribute to each <command> tag (where missing)
# based on its <proto><name> element.
#
# There's usually only one <commands> block; more are OK.
# Required <command> attributes: 'name' or <proto><name> tag contents
self.cmddict = {}
for cmd in self.reg.findall('commands/command'):
# If the <command> doesn't already have a 'name' attribute, set
# it from contents of its <proto><name> tag.
if (cmd.get('name') == None):
cmd.attrib['name'] = cmd.find('proto/name').text
ci = CmdInfo(cmd)
self.addElementInfo(cmd, ci, 'command', self.cmddict)
#
# Create dictionaries of API and extension interfaces
# from toplevel <api> and <extension> tags.
#
self.apidict = {}
for feature in self.reg.findall('feature'):
featureInfo = FeatureInfo(feature)
self.addElementInfo(feature, featureInfo, 'feature', self.apidict)
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.
# 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
# *removed* from the <require> element it is introduced in.
# Not doing this will cause spurious genEnum()
# calls to be made in output generation, and it's easier
# to handle here than in genEnum().
#
# In lxml.etree, an Element can have only one parent, so the
# append() operation also removes the element. But in Python's
# ElementTree package, an Element can have multiple parents. So
# it must be explicitly removed from the <require> tag, leading
# to the nested loop traversal of <require>/<enum> elements
# below.
#
# This code also adds a 'extnumber' attribute containing the
# extension number, used for enumerant value calculation.
#
# For <enum> tags which are actually just constants, if there's
# 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
# doesn't need to iterate through the XML tags.
#
# Something like this will need to be done for 'feature's up
# above, if we use the same mechanism for adding to the core
# API in 1.1.
#
for elem in feature.findall('require'):
for enum in elem.findall('enum'):
addEnumInfo = False
groupName = enum.get('extends')
if (groupName != None):
# self.gen.logMsg('diag', '*** Found extension enum',
# enum.get('name'))
# Add extension number attribute to the <enum> element
enum.attrib['extnumber'] = featureInfo.number
enum.attrib['extname'] = featureInfo.name
enum.attrib['supported'] = featureInfo.supported
# Look up the GroupInfo with matching groupName
if (groupName in self.groupdict.keys()):
# 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')):
# 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)
def dumpReg(self, maxlen = 40, 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
type = self.lookupElementInfo(typename, self.typedict)
if (type != None):
if (required):
# Tag type dependencies in 'required' attributes as
# required. This DOES NOT un-tag dependencies in a <remove>
# tag. See comments in markRequired() below for the reason.
if ('requires' in type.elem.attrib):
depType = type.elem.get('requires')
self.gen.logMsg('diag', '*** Generating dependent type',
depType, 'for type', typename)
self.markTypeRequired(depType, required)
# 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 type.elem.findall('.//type'):
self.gen.logMsg('diag', '*** markRequired: type requires dependent <type>', subtype.text)
self.markTypeRequired(subtype.text, required)
# Tag enums used in defining this type, for example in
# <member><name>member</name>[<enum>MEMBER_SIZE</enum>]</member>
for subenum in type.elem.findall('.//enum'):
self.gen.logMsg('diag', '*** markRequired: type requires dependent <enum>', subenum.text)
self.markEnumRequired(subenum.text, required)
type.required = required
else:
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 != None):
enum.required = required
else:
self.gen.logMsg('warn', '*** enum:', enumname , 'IS NOT DEFINED')
#
# features - Element for <require> or <remove> tag
# required - boolean (to tag features as required or not)
def markRequired(self, features, required):
"""Require or remove features specified in the Element"""
self.gen.logMsg('diag', '*** markRequired (features = <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 features.findall('type'):
self.markTypeRequired(typeElem.get('name'), required)
for enumElem in features.findall('enum'):
self.markEnumRequired(enumElem.get('name'), required)
for cmdElem in features.findall('command'):
name = cmdElem.get('name')
self.gen.logMsg('diag', '*** tagging command:', name, '-> required =', required)
cmd = self.lookupElementInfo(name, self.cmddict)
if (cmd != None):
cmd.required = 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 in cmd.elem.findall('.//type'):
self.gen.logMsg('diag', '*** markRequired: command implicitly requires dependent type', type.text)
self.markTypeRequired(type.text, required)
else:
self.gen.logMsg('warn', '*** command:', name, 'IS NOT DEFINED')
#
# interface - Element for <version> or <extension>, containing
# <require> and <remove> tags
# api - string specifying API name being generated
# profile - string specifying API profile being generated
def requireAndRemoveFeatures(self, interface, api, profile):
"""Process <recquire> 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(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(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):
f = self.lookupElementInfo(fname, dictionary)
if (f == 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
#
# Pull in dependent declaration(s) of the feature.
# For types, there may be one type in the 'required' attribute of
# the element, as well as many in imbedded <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 GLuint64).
genProc = None
if (ftype == 'type'):
genProc = self.gen.genType
if ('requires' in f.elem.attrib):
depname = f.elem.get('requires')
self.gen.logMsg('diag', '*** Generating required dependent type',
depname)
self.generateFeature(depname, 'type', self.typedict)
for subtype in f.elem.findall('.//type'):
self.gen.logMsg('diag', '*** Generating required dependent <type>',
subtype.text)
self.generateFeature(subtype.text, 'type', self.typedict)
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 (group == None):
# Unless this is tested for, it's probably fatal to call below
genProc = None
self.logMsg('warn', '*** NO MATCHING ENUM GROUP FOUND!!!')
else:
genProc = self.gen.genGroup
f = group
elif (ftype == 'command'):
genProc = self.gen.genCmd
for type in f.elem.findall('.//type'):
depname = type.text
self.gen.logMsg('diag', '*** Generating required parameter type',
depname)
self.generateFeature(depname, 'type', self.typedict)
elif (ftype == 'enum'):
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)
else:
self.gen.logMsg('diag', '*** Skipping', ftype, fname,
'(not emitting this feature)')
#
# 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)
#
# Get all matching API versions & add to list of FeatureInfo
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.version)):
# 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.version) != 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', '*** 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):
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) != 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) != 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 = True
features.append(ei)
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, 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 type in self.typedict:
self.typedict[type].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
if ('group' in proto.attrib.keys()):
group = proto.get('group')
# self.gen.logMsg('diag', '*** Command ', funcname, ' has return group ', group)
if (group not in self.groupdict.keys()):
# self.gen.logMsg('diag', '*** Command ', funcname, ' has UNKNOWN return group ', group)
if (group not in badGroup.keys()):
badGroup[group] = 1
else:
badGroup[group] = badGroup[group] + 1
for param in cmd.findall('param'):
pname = param.find('name')
if (pname != None):
pname = pname.text
else:
pname = type.get('name')
if ('group' in param.attrib.keys()):
group = param.get('group')
if (group not in self.groupdict.keys()):
# self.gen.logMsg('diag', '*** Command ', funcname, ' param ', pname, ' has UNKNOWN group ', group)
if (group not in badGroup.keys()):
badGroup[group] = 1
else:
badGroup[group] = badGroup[group] + 1
if (len(badGroup.keys()) > 0):
self.gen.logMsg('diag', '*** SUMMARY OF UNRECOGNIZED GROUPS ***')
for key in sorted(badGroup.keys()):
self.gen.logMsg('diag', ' ', key, ' occurred ', badGroup[key], ' times')
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
self.features.append(self.featureName)
def beginFeature(self, interface, emit):
# Start processing in superclass
OutputGenerator.beginFeature(self, interface, emit)
# Add this feature to the list being tracked
self.features.append(self.featureName)
