glapi: Add is_abi() to test if a function is in the ABI.

The test is done by checking if the offset is manually assigned.  The
generated headers are unchanged.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

src/mesa/glapi/gl_XML.py

@@ -738,6 +738,9 @@ class gl_function( gl_item ):
 		return p_string
 
 
+	def is_abi(self):
+		return (self.offset >= 0 and not self.assign_offset)
+
 	def is_static_entry_point(self, name):
 		return name in self.static_entry_points
 

src/mesa/glapi/gl_offsets.py

@@ -41,8 +41,6 @@ class PrintGlOffsets(gl_XML.gl_print_base):
 		return
 
 	def printBody(self, api):
-		abi = [ "1.0", "1.1", "1.2", "GL_ARB_multitexture" ]
-
 		print '/* this file should not be included directly in mesa */'
 		print ''
 
@@ -50,8 +48,7 @@ class PrintGlOffsets(gl_XML.gl_print_base):
 		abi_functions = []
 		count = 0
 		for f in api.functionIterateByOffset():
-			[category, num] = api.get_category_for_name( f.name )
-			if category not in abi:
+			if not f.is_abi():
 				functions.append( [f, count] )
 				count += 1
 			else:

src/mesa/glapi/gl_table.py

@@ -113,14 +113,11 @@ class PrintRemapTable(gl_XML.gl_print_base):
 		print '    } while(0)'
 		print ''
 
-		abi = [ "1.0", "1.1", "1.2", "GL_ARB_multitexture" ]
-
 		functions = []
 		abi_functions = []
 		count = 0
 		for f in api.functionIterateByOffset():
-			[category, num] = api.get_category_for_name( f.name )
-			if category not in abi:
+			if not f.is_abi():
 				functions.append( [f, count] )
 				count += 1
 			else:

src/mesa/glapi/remap_helper.py

@@ -145,7 +145,7 @@ class PrintGlRemap(gl_XML.gl_print_base):
 			funcs = []
 			for f in extension_functions[ext]:
 				# test if the function is in the ABI
-				if not f.assign_offset and f.offset >= 0:
+				if f.is_abi():
 					funcs.append(f)
 			if not funcs:
 				continue