New scripts for processing the XML version of APIspec. Mail is being

sent to mesa3d-dev with a more detailed description.

1 files changed, 138 insertions, 0 deletions

diff --git a/src/mesa/glapi/gl_x86_asm.py b/src/mesa/glapi/gl_x86_asm.py
new file mode 100644
index 00000000000..a0147b22b96
--- /dev/null
+++ b/src/mesa/glapi/gl_x86_asm.py
@@ -0,0 +1,138 @@
+#!/usr/bin/python2
+
+# (C) Copyright IBM Corporation 2004
+# All Rights Reserved.
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# on the rights to use, copy, modify, merge, publish, distribute, sub
+# license, and/or sell copies of the Software, and to permit persons to whom
+# the Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
+# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+#
+# Authors:
+#    Ian Romanick <[email protected]>
+
+from xml.sax import saxutils
+from xml.sax import make_parser
+from xml.sax.handler import feature_namespaces
+
+import gl_XML
+import license
+import sys, getopt
+
+class PrintGenericStubs(gl_XML.FilterGLAPISpecBase):
+	name = "gl_x86_asm.py (from Mesa)"
+
+	def __init__(self):
+		gl_XML.FilterGLAPISpecBase.__init__(self)
+		self.license = license.bsd_license_template % ( \
+"""Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
+
+
+	def get_stack_size(self, f):
+		size = 0
+		for p in f:
+			t = p.p_type
+
+			if p.is_array() or t.size != 8:
+				size += 4
+			else:
+				size += 8
+
+		return size
+
+	def printRealHeader(self):
+		print '#include "assyntax.h"'
+		print '#include "glapioffsets.h"'
+		print ''
+		print '#ifndef __WIN32__'
+		print ''	
+		print '#if defined(STDCALL_API)'
+		print '#define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n2))'
+		print '#elif defined(USE_MGL_NAMESPACE)'
+		print '#define GL_PREFIX(n,n2) GLNAME(CONCAT(mgl,n))'
+		print '#else'
+		print '#define GL_PREFIX(n,n2) GLNAME(CONCAT(gl,n))'
+		print '#endif'
+		print ''
+		print '#define GL_OFFSET(x) CODEPTR(REGOFF(4 * x, EAX))'
+		print ''
+		print '#if defined(GNU_ASSEMBLER) && !defined(__DJGPP__) && !defined(__MINGW32__)'
+		print '#define GLOBL_FN(x) GLOBL x ; .type x,@function'
+		print '#else'
+		print '#define GLOBL_FN(x) GLOBL x'
+		print '#endif'
+		print ''
+		print '#define GL_STUB(fn,off,stack)\t\t\t\t\\'
+		print 'ALIGNTEXT16;\t\t\t\t\t\t\\'
+		print 'GLOBL_FN(GL_PREFIX(fn, fn ## @ ## stack));\t\t\\'
+		print 'GL_PREFIX(fn, fn ## @ ## stack):\t\t\t\\'
+		print '\tMOV_L(CONTENT(GLNAME(_glapi_Dispatch)), EAX) ;\t\\'
+		print '\tJMP(GL_OFFSET(off))'
+		print ''
+		print 'SEG_TEXT'
+		print 'EXTERN GLNAME(_glapi_Dispatch)'
+		print ''
+		return
+
+	def printRealFooter(self):
+		print ''
+		print '#endif  /* __WIN32__ */'
+		return
+
+	def printFunction(self, f):
+		if f.fn_offset == -1: return
+
+		stack = self.get_stack_size(f)
+
+		print '\tGL_STUB(%s, _gloffset_%s, %u)' % (f.name, f.real_name, stack)
+		return
+
+def show_usage():
+	print "Usage: %s [-f input_file_name] [-m output_mode]" % sys.argv[0]
+	sys.exit(1)
+
+if __name__ == '__main__':
+	file_name = "gl_API.xml"
+	mode = "generic"
+
+	try:
+		(args, trail) = getopt.getopt(sys.argv[1:], "m:f:")
+	except Exception,e:
+		show_usage()
+
+	for (arg,val) in args:
+		if arg == '-m':
+			mode = val
+		elif arg == "-f":
+			file_name = val
+
+	if mode == "generic":
+		dh = PrintGenericStubs()
+	else:
+		print "ERROR: Invalid mode \"%s\" specified." % mode
+		show_usage()
+
+	parser = make_parser()
+	parser.setFeature(feature_namespaces, 0)
+	parser.setContentHandler(dh)
+
+	f = open(file_name)
+
+	dh.printHeader()
+	parser.parse(f)
+	dh.printFooter()