Small refactor. Add glXFunctionIterator, which derrives from

glFunctionIterator and is used by GlxProto.  The difference between the two
iterator classes is that glXFunctionIterator skips functions that the GLX
protocol code does not care about.

Replace all the remaining occurances of glParameter::p_count_parameters and
glFunction::count_parameters with the count_parameter_list.

Add GlxProto::size_call to generate the C code to calculate 'compsize'.

These trivially modify the generated code.

src/mesa/glapi/glX_XML.py

@@ -31,7 +31,7 @@ from xml.sax.handler import feature_namespaces
 
 import gl_XML
 import license
-import sys, getopt
+import sys, getopt, string
 
 
 class glXItemFactory(gl_XML.glItemFactory):
@@ -300,7 +300,6 @@ class glXFunction(gl_XML.glFunction):
 
 	def __init__(self, context, name, attrs):
 		self.vectorequiv = attrs.get('vectorequiv', None)
-		self.count_parameters = None
 		self.counter = None
 		self.output = None
 		self.can_be_large = 0
@@ -400,9 +399,6 @@ class glXFunction(gl_XML.glFunction):
 		elif not self.glx_doubles_in_order and p.p_type.size == 8:
 			p.order = 0;
 
-		if p.p_count_parameters != None:
-			self.count_parameters = p.p_count_parameters
-		
 		if p.is_counter:
 			self.counter = p.name
 			
@@ -547,7 +543,8 @@ class glXFunction(gl_XML.glFunction):
 		elif self.glx_vendorpriv != 0:
 			return "X_GLvop_%s" % (self.name)
 		else:
-			return "ERROR"
+			raise RuntimeError('Function "%s" has no opcode.' % (self.name))
+
 
 	def opcode_real_name(self):
 		"""Get the true protocol enum name for the GLX opcode
@@ -633,6 +630,33 @@ class glXFunction(gl_XML.glFunction):
 		return None
 
 
+class glXFunctionIterator(gl_XML.glFunctionIterator):
+	"""Class to iterate over a list of glXFunctions"""
+
+	def __init__(self, context):
+		self.context = context
+		self.keys = context.functions.keys()
+		self.keys.sort()
+
+		for self.index in range(0, len(self.keys)):
+			if self.keys[ self.index ] >= 0: break
+
+		return
+
+
+	def next(self):
+		if self.index == len(self.keys):
+			raise StopIteration
+
+		f = self.context.functions[ self.keys[ self.index ] ]
+		self.index += 1
+
+		if f.ignore:
+			return self.next()
+		else:
+			return f
+
+
 class GlxProto(gl_XML.FilterGLAPISpecBase):
 	name = "glX_proto_send.py (from Mesa)"
 
@@ -664,3 +688,30 @@ class GlxProto(gl_XML.FilterGLAPISpecBase):
 
 	def createEnumFunction(self, n):
 		return glXEnumFunction(n, self)
+
+
+	def functionIterator(self):
+		return glXFunctionIterator(self)
+
+	
+	def size_call(self, func):
+		"""Create C code to calculate 'compsize'.
+
+		Creates code to calculate 'compsize'.  If the function does
+		not need 'compsize' to be calculated, None will be
+		returned."""
+
+		if not func.image and not func.count_parameter_list:
+			return None
+
+		if not func.image:
+			parameters = string.join( func.count_parameter_list, "," )
+			compsize = "__gl%s_size(%s)" % (func.name, parameters)
+		else:
+			[dim, w, h, d, junk] = func.dimensions()
+
+			compsize = '__glImageSize(%s, %s, %s, %s, %s, %s)' % (w, h, d, func.image.img_format, func.image.img_type, func.image.img_target)
+			if not func.image.img_send_null:
+				compsize = '(%s != NULL) ? %s : 0' % (func.image.name, compsize)
+
+		return compsize

src/mesa/glapi/glX_doc.py

@@ -75,11 +75,11 @@ class glXDocParameter(gl_XML.glParameter):
 			a_prod = "n"
 			b_prod = self.p_type.size
 
-			if self.p_count_parameters == None and self.counter != None:
+			if not self.count_parameter_list and self.counter:
 				a_prod = self.counter
-			elif (self.p_count_parameters != None and self.counter == None) or (self.is_output):
+			elif self.count_parameter_list and not self.counter or self.is_output:
 				pass
-			elif self.p_count_parameters != None and self.counter != None:
+			elif self.count_parameter_list and self.counter:
 				b_prod = self.counter
 			else:
 				raise RuntimeError("Parameter '%s' to function '%s' has size 0." % (self.name, self.context.name))
@@ -234,7 +234,7 @@ class PrintGlxProtoText(glX_XML.GlxProto):
 		# At some point this should be expanded to support pixel
 		# functions, but I'm not going to lose any sleep over it now.
 
-		if f.fn_offset < 0 or f.client_handcode or f.server_handcode or f.ignore or f.vectorequiv or f.image:
+		if f.client_handcode or f.server_handcode or f.vectorequiv or f.image:
 			return
 
 		print '        %s' % (f.name)

src/mesa/glapi/glX_proto_send.py

@@ -101,7 +101,7 @@ class glXPixelFunctionUtility(glX_XML.glXFunction):
 		self.set_return_type( func.fn_return_type )
 		self.glx_rop = ~0
 		self.can_be_large = func.can_be_large
-		self.count_parameters = func.count_parameters
+		self.count_parameter_list = func.count_parameter_list
 		self.counter = func.counter
 		return
 
@@ -218,7 +218,7 @@ const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 };
 		return
 
 	def printFunction(self, f):
-		if f.fn_offset < 0 or f.client_handcode or f.ignore: return
+		if f.client_handcode: return
 
 		if f.glx_rop != 0 or f.vectorequiv != None:
 			if f.image:
@@ -339,18 +339,11 @@ generic_%u_byte( GLint rop, const void * ptr )
 		if f.fn_return_type != 'void':
 			print '    %s retval = (%s) 0;' % (f.fn_return_type, f.fn_return_type)
 
-		if f.count_parameters and not f.output_parameter():
+		if not f.output_parameter():
-			print '    const GLuint compsize = __gl%s_size(%s);' % (f.name, f.count_parameters)
+			compsize = self.size_call( f )
-		elif f.image:
+			if compsize:
-			[dim, w, h, d, junk] = f.dimensions()
-			
-			compsize = '__glImageSize(%s, %s, %s, %s, %s, %s)' % (w, h, d, f.image.img_format, f.image.img_type, f.image.img_target)
-			if not f.image.img_send_null:
-				compsize = '(%s != NULL) ? %s : 0' % (f.image.name, compsize)
-
 				print '    const GLuint compsize = %s;' % (compsize)
 
-
 		print '    const GLuint cmdlen = %s;' % (f.command_length())
 
 		if f.counter:
@@ -740,8 +733,6 @@ __GLapi * __glXNewIndirectAPI( void )
 """
 
 	def printFunction(self, f):
-		if f.fn_offset < 0 or f.ignore: return
-		
 		if f.category != self.last_category:
 			self.last_category = f.category
 			print ''
@@ -773,7 +764,6 @@ class PrintGlxProtoInit_h(glX_XML.GlxProto):
 
 
 	def printFunction(self, f):
-		if f.fn_offset < 0 or f.ignore: return
 		print 'extern HIDDEN %s __indirect_gl%s(%s);' % (f.fn_return_type, f.name, f.get_parameter_string())
 
 

src/mesa/glapi/glX_proto_size.py

@@ -35,7 +35,7 @@ import license
 import sys, getopt, copy
 
 
-class SizeStubFunctionIterator:
+class SizeStubFunctionIterator(glX_XML.glXFunctionIterator):
 	"""Iterate over functions that need "size" information.
 
 	Iterate over the functions that have variable sized data.  First the
@@ -52,8 +52,6 @@ class SizeStubFunctionIterator:
 		extra_data = []
 
 		for f in gl_XML.glFunctionIterator(context):
-			if f.fn_offset < 0: break
-
 			if context.glx_enum_functions.has_key(f.name):
 				ef = context.glx_enum_functions[f.name]
 				if ef.is_set():
@@ -80,10 +78,6 @@ class SizeStubFunctionIterator:
 		return
 
 
-	def __iter__(self):
-		return self
-
-
 	def next(self):
 		if self.index == len(self.data):
 			raise StopIteration
@@ -132,7 +126,7 @@ class glXServerEnumFunction(glX_XML.glXEnumFunction):
 		self.context.common_emit_fixups(fixup)
 
 		print ''
-		print '    compsize = __gl%s_size(%s);' % (self.name, f.count_parameters)
+		print '    compsize = %s;' % (context.size_call(context, f))
 		p = f.variable_length_parameter()
 		print '    return __GLX_PAD(%s);' % (p.size_string())
 
@@ -251,7 +245,7 @@ class PrintGlxReqSize_h(glX_XML.GlxProto):
 
 
 	def printFunction(self, f):
-		if f.glx_rop == 0 or f.ignore: return
+		if f.glx_rop == 0: return
 
 		has_counter = 0
 		for p in f.parameterIterator(1,2):
@@ -310,7 +304,7 @@ class PrintGlxReqSize_c(glX_XML.GlxProto):
 
 
 	def printFunction(self, f):
-		if f.glx_rop == 0 or f.server_handcode or f.ignore: return
+		if f.glx_rop == 0 or f.server_handcode: return
 
 		if self.glx_enum_functions.has_key(f.name):
 			ef = self.glx_enum_functions[f.name]

src/mesa/glapi/gl_XML.py

@@ -142,7 +142,6 @@ class glParameter( glItem ):
 	p_type = None
 	p_type_string = ""
 	p_count = 0
-	p_count_parameters = None
 	counter = None
 	is_output = 0
 	is_counter = 0
@@ -151,11 +150,10 @@ class glParameter( glItem ):
 	def __init__(self, context, name, attrs):
 		p_name = attrs.get('name', None)
 		self.p_type_string = attrs.get('type', None)
-		self.p_count_parameters = attrs.get('variable_param', None)
 
-		if self.p_count_parameters:
+		temp = attrs.get('variable_param', None)
-			temp = self.p_count_parameters.replace( ' ', '' )
+		if temp:
-			self.count_parameter_list = temp.split( ',' )
+			self.count_parameter_list = temp.replace( ' ', '' ).split( ',' )
 		else:
 			self.count_parameter_list = []
 
@@ -225,7 +223,7 @@ class glParameter( glItem ):
 
 
 
-		if self.p_count > 0 or self.counter or self.p_count_parameters:
+		if self.p_count > 0 or self.counter or self.count_parameter_list:
 			has_count = 1
 		else:
 			has_count = 0
@@ -264,7 +262,7 @@ class glParameter( glItem ):
 		to glCallLists, are not variable length arrays in this
 		sense."""
 
-		return self.p_count_parameters or self.counter or self.width
+		return self.count_parameter_list or self.counter or self.width
 
 
 	def is_array(self):
@@ -282,7 +280,7 @@ class glParameter( glItem ):
 		glDeleteTextures), or a general variable length vector."""
 
 		if self.is_array():
-			if self.p_count_parameters != None:
+			if self.count_parameter_list:
 				return "compsize"
 			elif self.counter != None:
 				return self.counter
@@ -293,7 +291,7 @@ class glParameter( glItem ):
 
 
 	def size(self):
-		if self.p_count_parameters or self.counter or self.width or self.is_output:
+		if self.count_parameter_list or self.counter or self.width or self.is_output:
 			return 0
 		elif self.p_count == 0:
 			return self.p_type.size
@@ -311,11 +309,11 @@ class glParameter( glItem ):
 
 			if b_prod == 0:	b_prod = 1
 
-			if self.p_count_parameters == None and self.counter != None:
+			if not self.count_parameter_list and self.counter != None:
 				a_prod = self.counter
-			elif self.p_count_parameters != None and self.counter == None:
+			elif self.count_parameter_list and self.counter == None:
 				pass
-			elif self.p_count_parameters != None and self.counter != None:
+			elif self.count_parameter_list and self.counter != None:
 				b_prod = self.counter
 			elif self.width:
 				return "compsize"
@@ -350,17 +348,12 @@ class glParameterIterator:
 
 
 class glFunction( glItem ):
-	real_name = ""
-	fn_alias = None
-	fn_offset = -1
-	fn_return_type = "void"
-	fn_parameters = []
-
 	def __init__(self, context, name, attrs):
 		self.fn_alias = attrs.get('alias', None)
 		self.fn_parameters = []
 		self.image = None
 		self.count_parameter_list = []
+		self.fn_return_type = "void"
 
 		temp = attrs.get('offset', None)
 		if temp == None or temp == "?":