Added glapi/gen directory of mesalib

1 files changed, 215 insertions, 0 deletions

diff --git a/mesalib/src/mesa/glapi/gen/gl_procs.py b/mesalib/src/mesa/glapi/gen/gl_procs.py
new file mode 100644
index 000000000..5de61fbdf
--- /dev/null
+++ b/mesalib/src/mesa/glapi/gen/gl_procs.py
@@ -0,0 +1,215 @@
+#!/usr/bin/env python
+
+# (C) Copyright IBM Corporation 2004, 2005
+# 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 <idr@us.ibm.com>
+
+import license
+import gl_XML, glX_XML
+import sys, getopt
+
+class PrintGlProcs(gl_XML.gl_print_base):
+	def __init__(self, long_strings, es=False):
+		gl_XML.gl_print_base.__init__(self)
+
+		self.es = es
+		self.long_strings = long_strings
+		self.name = "gl_procs.py (from Mesa)"
+		self.license = license.bsd_license_template % ( \
+"""Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+(C) Copyright IBM Corporation 2004, 2006""", "BRIAN PAUL, IBM")
+
+
+	def printRealHeader(self):
+		print """
+/* This file is only included by glapi.c and is used for
+ * the GetProcAddress() function
+ */
+
+typedef struct {
+    GLint Name_offset;
+#if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING)
+    _glapi_proc Address;
+#endif
+    GLuint Offset;
+} glprocs_table_t;
+
+#if   !defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING)
+#  define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , o }
+#elif  defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING)
+#  define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f1 , o }
+#elif  defined(NEED_FUNCTION_POINTER) &&  defined(GLX_INDIRECT_RENDERING)
+#  define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f2 , o }
+#elif !defined(NEED_FUNCTION_POINTER) &&  defined(GLX_INDIRECT_RENDERING)
+#  define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f3 , o }
+#endif
+
+"""
+		return
+
+	def printRealFooter(self):
+		print ''
+		print '#undef NAME_FUNC_OFFSET'
+		return
+
+	def printFunctionString(self, name):
+		if self.long_strings:
+			print '    "gl%s\\0"' % (name)
+		else:
+			print "    'g','l',",
+			for c in name:
+				print "'%s'," % (c),
+			
+			print "'\\0',"
+
+
+	def printBody(self, api):
+		print ''
+		if self.long_strings:
+			print 'static const char gl_string_table[] ='
+		else:
+			print 'static const char gl_string_table[] = {'
+
+		base_offset = 0
+		table = []
+		for func in api.functionIterateByOffset():
+			name = func.dispatch_name()
+			self.printFunctionString(func.name)
+			table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.name))
+
+			# The length of the function's name, plus 2 for "gl",
+			# plus 1 for the NUL.
+
+			base_offset += len(func.name) + 3
+
+
+		for func in api.functionIterateByOffset():
+			for n in func.entry_points:
+				if n != func.name:
+					name = func.dispatch_name()
+					self.printFunctionString( n )
+					
+					if func.has_different_protocol(n):
+						alt_name = "gl" + func.static_glx_name(n)
+						table.append((base_offset, "gl" + name, alt_name, alt_name, func.name))
+					else:
+						table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.name))
+
+					base_offset += len(n) + 3
+
+
+		if self.long_strings:
+			print '    ;'
+		else:
+			print '};'
+
+		print ''
+		print ''
+		print "#ifdef USE_MGL_NAMESPACE"
+		for func in api.functionIterateByOffset():
+			for n in func.entry_points:
+				if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)):
+					print '#define gl_dispatch_stub_%u mgl_dispatch_stub_%u' % (func.offset, func.offset)
+					break
+		print "#endif /* USE_MGL_NAMESPACE */"
+		print ''
+		print ''
+		print '#if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING)'
+		for func in api.functionIterateByOffset():
+			for n in func.entry_points:
+				if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)):
+					print '%s GLAPIENTRY gl_dispatch_stub_%u(%s);' % (func.return_type, func.offset, func.get_parameter_string())
+					break
+
+		if self.es:
+			categories = {}
+			for func in api.functionIterateByOffset():
+				for n in func.entry_points:
+					cat, num = api.get_category_for_name(n)
+					if (cat.startswith("es") or cat.startswith("GL_OES")):
+						if not categories.has_key(cat):
+							categories[cat] = []
+						proto = 'GLAPI %s GLAPIENTRY %s(%s);' \
+								% (func.return_type, "gl" + n, func.get_parameter_string(n))
+						categories[cat].append(proto)
+			if categories:
+				print ''
+				print '/* OpenGL ES specific prototypes */'
+				print ''
+				keys = categories.keys()
+				keys.sort()
+				for key in keys:
+					print '/* category %s */' % key
+					print "\n".join(categories[key])
+				print ''
+
+		print '#endif /* defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) */'
+
+		print ''
+		print 'static const glprocs_table_t static_functions[] = {'
+
+		for info in table:
+			print '    NAME_FUNC_OFFSET(%5u, %s, %s, %s, _gloffset_%s),' % info
+
+		print '    NAME_FUNC_OFFSET(-1, NULL, NULL, NULL, 0)'
+		print '};'
+		return
+
+
+def show_usage():
+	print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0]
+	print "-c          Enable compatibility with OpenGL ES."
+	print "-m mode     mode can be one of:"
+	print "    long  - Create code for compilers that can handle very"
+	print "            long string constants. (default)"
+	print "    short - Create code for compilers that can only handle"
+	print "            ANSI C89 string constants."
+	sys.exit(1)
+
+if __name__ == '__main__':
+	file_name = "gl_API.xml"
+
+	try:
+		(args, trail) = getopt.getopt(sys.argv[1:], "f:m:c")
+	except Exception,e:
+		show_usage()
+
+	long_string = 1
+	es = False
+	for (arg,val) in args:
+		if arg == "-f":
+			file_name = val
+		elif arg == "-m":
+			if val == "short":
+				long_string = 0
+			elif val == "long":
+				long_string = 1
+			else:
+				show_usage()
+		elif arg == "-c":
+		    es = True
+
+	api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory())
+	printer = PrintGlProcs(long_string, es)
+	printer.Print(api)