class glx_item_factory(gl_XML.gl_item_factory):
"""Factory to create GLX protocol oriented objects derived from gl_item."""
- def create_item(self, name, element, context):
- if name == "function":
- return glx_function(element, context)
- elif name == "enum":
- return glx_enum(element, context)
- elif name == "api":
- return glx_api(self)
- else:
- return gl_XML.gl_item_factory.create_item(self, name, element, context)
+ def create_function(self, element, context):
+ return glx_function(element, context)
+
+ def create_enum(self, element, context, category):
+ return glx_enum(element, context, category)
+
+ def create_api(self):
+ return glx_api(self)
class glx_enum(gl_XML.gl_enum):
- def __init__(self, element, context):
- gl_XML.gl_enum.__init__(self, element, context)
+ def __init__(self, element, context, category):
+ gl_XML.gl_enum.__init__(self, element, context, category)
self.functions = {}
- child = element.children
- while child:
- if child.type == "element" and child.name == "size":
- n = child.nsProp( "name", None )
- c = child.nsProp( "count", None )
- m = child.nsProp( "mode", None )
+ for child in element.getchildren():
+ if child.tag == "size":
+ n = child.get( "name" )
+ c = child.get( "count" )
+ m = child.get( "mode", "set" )
if not c:
c = self.default_count
if not self.functions.has_key(n):
self.functions[ n ] = [c, mode]
- child = child.next
-
return
# appears after the function that it aliases.
if not self.vectorequiv:
- self.vectorequiv = element.nsProp("vectorequiv", None)
+ self.vectorequiv = element.get("vectorequiv")
- name = element.nsProp("name", None)
+ name = element.get("name")
if name == self.name:
for param in self.parameters:
self.parameters_by_name[ param.name ] = param
self.counter_list.append(param.counter)
- child = element.children
- while child:
- if child.type == "element" and child.name == "glx":
- rop = child.nsProp( 'rop', None )
- sop = child.nsProp( 'sop', None )
- vop = child.nsProp( 'vendorpriv', None )
+ for child in element.getchildren():
+ if child.tag == "glx":
+ rop = child.get( 'rop' )
+ sop = child.get( 'sop' )
+ vop = child.get( 'vendorpriv' )
if rop:
self.glx_rop = int(rop)
self.glx_vendorpriv = int(vop)
self.glx_vendorpriv_names.append(name)
- self.img_reset = child.nsProp( 'img_reset', None )
+ self.img_reset = child.get( 'img_reset' )
# The 'handcode' attribute can be one of 'true',
# 'false', 'client', or 'server'.
- handcode = child.nsProp( 'handcode', None )
+ handcode = child.get( 'handcode', 'false' )
if handcode == "false":
self.server_handcode = 0
self.client_handcode = 0
self.reply_always_array = gl_XML.is_attr_true( child, 'always_array' )
self.dimensions_in_reply = gl_XML.is_attr_true( child, 'dimensions_in_reply' )
- child = child.next
-
# Do some validation of the GLX protocol information. As
# new tests are discovered, they should be added here.
# Ian Romanick <idr@us.ibm.com>
from decimal import Decimal
-import libxml2
+import xml.etree.ElementTree as ET
import re, sys, string
+import os.path
import typeexpr
def parse_GL_API( file_name, factory = None ):
- doc = libxml2.readFile( file_name, None, libxml2.XML_PARSE_XINCLUDE + libxml2.XML_PARSE_NOBLANKS + libxml2.XML_PARSE_DTDVALID + libxml2.XML_PARSE_DTDATTR + libxml2.XML_PARSE_DTDLOAD + libxml2.XML_PARSE_NOENT )
- ret = doc.xincludeProcess()
if not factory:
factory = gl_item_factory()
- api = factory.create_item( "api", None, None )
- api.process_element( doc )
+ api = factory.create_api()
+ api.parse_file( file_name )
# After the XML has been processed, we need to go back and assign
# dispatch offsets to the functions that request that their offsets
func.offset = api.next_offset;
api.next_offset += 1
- doc.freeDoc()
-
return api
-def is_attr_true( element, name ):
+def is_attr_true( element, name, default = "false" ):
"""Read a name value from an element's attributes.
The value read from the attribute list must be either 'true' or
value is 'true', non-zero will be returned. An exception will be
raised for any other value."""
- value = element.nsProp( name, None )
+ value = element.get( name, default )
if value == "true":
return 1
elif value == "false":
def real_function_name(element):
- name = element.nsProp( "name", None )
- alias = element.nsProp( "alias", None )
+ name = element.get( "name" )
+ alias = element.get( "alias" )
if alias:
return alias
class gl_item(object):
- def __init__(self, element, context):
+ def __init__(self, element, context, category):
self.context = context
- self.name = element.nsProp( "name", None )
- self.category = real_category_name( element.parent.nsProp( "name", None ) )
+ self.name = element.get( "name" )
+ self.category = real_category_name( category )
+
return
class gl_type( gl_item ):
- def __init__(self, element, context):
- gl_item.__init__(self, element, context)
- self.size = int( element.nsProp( "size", None ), 0 )
+ def __init__(self, element, context, category):
+ gl_item.__init__(self, element, context, category)
+ self.size = int( element.get( "size" ), 0 )
te = typeexpr.type_expression( None )
tn = typeexpr.type_node()
- tn.size = int( element.nsProp( "size", None ), 0 )
+ tn.size = int( element.get( "size" ), 0 )
tn.integer = not is_attr_true( element, "float" )
tn.unsigned = is_attr_true( element, "unsigned" )
tn.pointer = is_attr_true( element, "pointer" )
class gl_enum( gl_item ):
- def __init__(self, element, context):
- gl_item.__init__(self, element, context)
- self.value = int( element.nsProp( "value", None ), 0 )
+ def __init__(self, element, context, category):
+ gl_item.__init__(self, element, context, category)
+ self.value = int( element.get( "value" ), 0 )
- temp = element.nsProp( "count", None )
+ temp = element.get( "count" )
if not temp or temp == "?":
self.default_count = -1
else:
class gl_parameter(object):
def __init__(self, element, context):
- self.name = element.nsProp( "name", None )
+ self.name = element.get( "name" )
- ts = element.nsProp( "type", None )
+ ts = element.get( "type" )
self.type_expr = typeexpr.type_expression( ts, context )
- temp = element.nsProp( "variable_param", None )
+ temp = element.get( "variable_param" )
if temp:
self.count_parameter_list = temp.split( ' ' )
else:
# statement will throw an exception, and the except block will
# take over.
- c = element.nsProp( "count", None )
+ c = element.get( "count" )
try:
count = int(c)
self.count = count
self.count = 0
self.counter = c
- self.count_scale = int(element.nsProp( "count_scale", None ))
+ self.count_scale = int(element.get( "count_scale", "1" ))
elements = (count * self.count_scale)
if elements == 1:
# Pixel data has special parameters.
- self.width = element.nsProp('img_width', None)
- self.height = element.nsProp('img_height', None)
- self.depth = element.nsProp('img_depth', None)
- self.extent = element.nsProp('img_extent', None)
+ self.width = element.get('img_width')
+ self.height = element.get('img_height')
+ self.depth = element.get('img_depth')
+ self.extent = element.get('img_extent')
- self.img_xoff = element.nsProp('img_xoff', None)
- self.img_yoff = element.nsProp('img_yoff', None)
- self.img_zoff = element.nsProp('img_zoff', None)
- self.img_woff = element.nsProp('img_woff', None)
+ self.img_xoff = element.get('img_xoff')
+ self.img_yoff = element.get('img_yoff')
+ self.img_zoff = element.get('img_zoff')
+ self.img_woff = element.get('img_woff')
- self.img_format = element.nsProp('img_format', None)
- self.img_type = element.nsProp('img_type', None)
- self.img_target = element.nsProp('img_target', None)
+ self.img_format = element.get('img_format')
+ self.img_type = element.get('img_type')
+ self.img_target = element.get('img_target')
self.img_pad_dimensions = is_attr_true( element, 'img_pad_dimensions' )
self.img_null_flag = is_attr_true( element, 'img_null_flag' )
def process_element(self, element):
- name = element.nsProp( "name", None )
- alias = element.nsProp( "alias", None )
+ name = element.get( "name" )
+ alias = element.get( "alias" )
- if is_attr_true(element, "static_dispatch"):
+ if is_attr_true(element, "static_dispatch", "true"):
self.static_entry_points.append(name)
self.entry_points.append( name )
self.entry_point_api_map[name] = {}
for api in ('es1', 'es2'):
- version_str = element.nsProp(api, None)
+ version_str = element.get(api, 'none')
assert version_str is not None
if version_str != 'none':
version_decimal = Decimal(version_str)
version_decimal < self.api_map[api]:
self.api_map[api] = version_decimal
- exec_flavor = element.nsProp('exec', None)
+ exec_flavor = element.get('exec')
if exec_flavor:
self.exec_flavor = exec_flavor
- deprecated = element.nsProp('deprecated', None)
+ deprecated = element.get('deprecated', 'none')
if deprecated != 'none':
self.deprecated = Decimal(deprecated)
- if not is_attr_true(element, 'desktop'):
+ if not is_attr_true(element, 'desktop', 'true'):
self.desktop = False
if alias:
# Only try to set the offset when a non-alias entry-point
# is being processed.
- offset = element.nsProp( "offset", None )
+ offset = element.get( "offset" )
if offset:
try:
o = int( offset )
parameters = []
return_type = "void"
- child = element.children
- while child:
- if child.type == "element":
- if child.name == "return":
- return_type = child.nsProp( "type", None )
- elif child.name == "param":
- param = self.context.factory.create_item( "parameter", child, self.context)
- parameters.append( param )
-
- child = child.next
+ for child in element.getchildren():
+ if child.tag == "return":
+ return_type = child.get( "type", "void" )
+ elif child.tag == "param":
+ param = self.context.factory.create_parameter(child, self.context)
+ parameters.append( param )
if self.initialized:
if param.is_image():
self.images.append( param )
- if element.children:
+ if element.getchildren():
self.initialized = 1
self.entry_point_parameters[name] = parameters
else:
class gl_item_factory(object):
"""Factory to create objects derived from gl_item."""
- def create_item(self, item_name, element, context):
- if item_name == "function":
- return gl_function(element, context)
- if item_name == "type":
- return gl_type(element, context)
- elif item_name == "enum":
- return gl_enum(element, context)
- elif item_name == "parameter":
- return gl_parameter(element, context)
- elif item_name == "api":
- return gl_api(self)
- else:
- return None
+ def create_function(self, element, context):
+ return gl_function(element, context)
+
+ def create_type(self, element, context, category):
+ return gl_type(element, context, category)
+
+ def create_enum(self, element, context, category):
+ return gl_enum(element, context, category)
+
+ def create_parameter(self, element, context):
+ return gl_parameter(element, context)
+
+ def create_api(self):
+ return gl_api(self)
class gl_api(object):
self.functions_by_name = functions_by_name
- def process_element(self, doc):
- element = doc.children
- while element.type != "element" or element.name != "OpenGLAPI":
- element = element.next
- if element:
- self.process_OpenGLAPI(element)
- return
+ def parse_file(self, file_name):
+ doc = ET.parse( file_name )
+ self.process_element(file_name, doc)
- def process_OpenGLAPI(self, element):
- child = element.children
- while child:
- if child.type == "element":
- if child.name == "category":
- self.process_category( child )
- elif child.name == "OpenGLAPI":
- self.process_OpenGLAPI( child )
+ def process_element(self, file_name, doc):
+ element = doc.getroot()
+ if element.tag == "OpenGLAPI":
+ self.process_OpenGLAPI(file_name, element)
+ return
+
- child = child.next
+ def process_OpenGLAPI(self, file_name, element):
+ for child in element.getchildren():
+ if child.tag == "category":
+ self.process_category( child )
+ elif child.tag == "OpenGLAPI":
+ self.process_OpenGLAPI( file_name, child )
+ elif child.tag == '{http://www.w3.org/2001/XInclude}include':
+ href = child.get('href')
+ href = os.path.join(os.path.dirname(file_name), href)
+ self.parse_file(href)
return
def process_category(self, cat):
- cat_name = cat.nsProp( "name", None )
- cat_number = cat.nsProp( "number", None )
+ cat_name = cat.get( "name" )
+ cat_number = cat.get( "number" )
[cat_type, key] = classify_category(cat_name, cat_number)
self.categories[cat_type][key] = [cat_name, cat_number]
- child = cat.children
- while child:
- if child.type == "element":
- if child.name == "function":
- func_name = real_function_name( child )
-
- temp_name = child.nsProp( "name", None )
- self.category_dict[ temp_name ] = [cat_name, cat_number]
-
- if self.functions_by_name.has_key( func_name ):
- func = self.functions_by_name[ func_name ]
- func.process_element( child )
- else:
- func = self.factory.create_item( "function", child, self )
- self.functions_by_name[ func_name ] = func
+ for child in cat.getchildren():
+ if child.tag == "function":
+ func_name = real_function_name( child )
- if func.offset >= self.next_offset:
- self.next_offset = func.offset + 1
+ temp_name = child.get( "name" )
+ self.category_dict[ temp_name ] = [cat_name, cat_number]
+ if self.functions_by_name.has_key( func_name ):
+ func = self.functions_by_name[ func_name ]
+ func.process_element( child )
+ else:
+ func = self.factory.create_function( child, self )
+ self.functions_by_name[ func_name ] = func
- elif child.name == "enum":
- enum = self.factory.create_item( "enum", child, self )
- self.enums_by_name[ enum.name ] = enum
- elif child.name == "type":
- t = self.factory.create_item( "type", child, self )
- self.types_by_name[ "GL" + t.name ] = t
+ if func.offset >= self.next_offset:
+ self.next_offset = func.offset + 1
- child = child.next
+ elif child.tag == "enum":
+ enum = self.factory.create_enum( child, self, cat_name )
+ self.enums_by_name[ enum.name ] = enum
+ elif child.tag == "type":
+ t = self.factory.create_type( child, self, cat_name )
+ self.types_by_name[ "GL" + t.name ] = t
return
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