Added glapi/gen directory of mesalib

1 files changed, 229 insertions, 0 deletions

diff --git a/mesalib/src/mesa/glapi/gen/gl_table.py b/mesalib/src/mesa/glapi/gen/gl_table.py
new file mode 100644
index 000000000..3bd7569e9
--- /dev/null
+++ b/mesalib/src/mesa/glapi/gen/gl_table.py
@@ -0,0 +1,229 @@
+#!/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 <idr@us.ibm.com>
+
+import gl_XML
+import license
+import sys, getopt
+
+class PrintGlTable(gl_XML.gl_print_base):
+	def __init__(self, es=False):
+		gl_XML.gl_print_base.__init__(self)
+
+		self.es = es
+		self.header_tag = '_GLAPI_TABLE_H_'
+		self.name = "gl_table.py (from Mesa)"
+		self.license = license.bsd_license_template % ( \
+"""Copyright (C) 1999-2003  Brian Paul   All Rights Reserved.
+(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
+		return
+
+
+	def printBody(self, api):
+		for f in api.functionIterateByOffset():
+			arg_string = f.get_parameter_string()
+			print '   %s (GLAPIENTRYP %s)(%s); /* %d */' % (f.return_type, f.name, arg_string, f.offset)
+
+
+	def printRealHeader(self):
+		print '#ifndef GLAPIENTRYP'
+		print '# ifndef GLAPIENTRY'
+		print '#  define GLAPIENTRY'
+		print '# endif'
+		print ''
+		print '# define GLAPIENTRYP GLAPIENTRY *'
+		print '#endif'
+		print ''
+		print ''
+		print 'struct _glapi_table'
+		print '{'
+		return
+
+
+	def printRealFooter(self):
+		print '};'
+		return
+
+
+class PrintRemapTable(gl_XML.gl_print_base):
+	def __init__(self, es=False):
+		gl_XML.gl_print_base.__init__(self)
+
+		self.es = es
+		self.header_tag = '_GLAPI_DISPATCH_H_'
+		self.name = "gl_table.py (from Mesa)"
+		self.license = license.bsd_license_template % ("(C) Copyright IBM Corporation 2005", "IBM")
+		return
+
+
+	def printRealHeader(self):
+		print """
+/* this file should not be included directly in mesa */
+
+/**
+ * \\file glapidispatch.h
+ * Macros for handling GL dispatch tables.
+ *
+ * For each known GL function, there are 3 macros in this file.  The first
+ * macro is named CALL_FuncName and is used to call that GL function using
+ * the specified dispatch table.  The other 2 macros, called GET_FuncName
+ * can SET_FuncName, are used to get and set the dispatch pointer for the
+ * named function in the specified dispatch table.
+ */
+"""
+		
+		return
+
+	def printBody(self, api):
+		print '#define CALL_by_offset(disp, cast, offset, parameters) \\'
+		print '    (*(cast (GET_by_offset(disp, offset)))) parameters'
+		print '#define GET_by_offset(disp, offset) \\'
+		print '    (offset >= 0) ? (((_glapi_proc *)(disp))[offset]) : NULL'
+		print '#define SET_by_offset(disp, offset, fn) \\'
+		print '    do { \\'
+		print '        if ( (offset) < 0 ) { \\'
+		print '            /* fprintf( stderr, "[%s:%u] SET_by_offset(%p, %d, %s)!\\n", */ \\'
+		print '            /*         __func__, __LINE__, disp, offset, # fn); */ \\'
+		print '            /* abort(); */ \\'
+		print '        } \\'
+		print '        else { \\'
+		print '            ( (_glapi_proc *) (disp) )[offset] = (_glapi_proc) fn; \\'
+		print '        } \\'
+		print '    } while(0)'
+		print ''
+
+		functions = []
+		abi_functions = []
+		alias_functions = []
+		count = 0
+		for f in api.functionIterateByOffset():
+			if not f.is_abi():
+				functions.append( [f, count] )
+				count += 1
+			else:
+				abi_functions.append( f )
+
+			if self.es:
+				# remember functions with aliases
+				if len(f.entry_points) > 1:
+					alias_functions.append(f)
+
+
+		for f in abi_functions:
+			print '#define CALL_%s(disp, parameters) (*((disp)->%s)) parameters' % (f.name, f.name)
+			print '#define GET_%s(disp) ((disp)->%s)' % (f.name, f.name)
+			print '#define SET_%s(disp, fn) ((disp)->%s = fn)' % (f.name, f.name)
+
+
+		print ''
+		print '#if !defined(_GLAPI_USE_REMAP_TABLE)'
+		print ''
+
+		for [f, index] in functions:
+			print '#define CALL_%s(disp, parameters) (*((disp)->%s)) parameters' % (f.name, f.name)
+			print '#define GET_%s(disp) ((disp)->%s)' % (f.name, f.name)
+			print '#define SET_%s(disp, fn) ((disp)->%s = fn)' % (f.name, f.name)
+
+		print ''
+		print '#else'
+		print ''
+		print '#define driDispatchRemapTable_size %u' % (count)
+		print 'extern int driDispatchRemapTable[ driDispatchRemapTable_size ];'
+		print ''
+
+		for [f, index] in functions:
+			print '#define %s_remap_index %u' % (f.name, index)
+
+		print ''
+
+		for [f, index] in functions:
+			arg_string = gl_XML.create_parameter_string( f.parameters, 0 )
+			cast = '%s (GLAPIENTRYP)(%s)' % (f.return_type, arg_string)
+
+			print '#define CALL_%s(disp, parameters) CALL_by_offset(disp, (%s), driDispatchRemapTable[%s_remap_index], parameters)' % (f.name, cast, f.name)
+			print '#define GET_%s(disp) GET_by_offset(disp, driDispatchRemapTable[%s_remap_index])' % (f.name, f.name)
+			print '#define SET_%s(disp, fn) SET_by_offset(disp, driDispatchRemapTable[%s_remap_index], fn)' % (f.name, f.name)
+
+
+		print ''
+		print '#endif /* !defined(_GLAPI_USE_REMAP_TABLE) */'
+
+		if alias_functions:
+			print ''
+			print '/* define aliases for compatibility */'
+			for f in alias_functions:
+				for name in f.entry_points:
+					if name != f.name:
+						print '#define CALL_%s(disp, parameters) CALL_%s(disp, parameters)' % (name, f.name)
+						print '#define GET_%s(disp) GET_%s(disp)' % (name, f.name)
+						print '#define SET_%s(disp, fn) SET_%s(disp, fn)' % (name, f.name)
+			print ''
+
+			print '#if defined(_GLAPI_USE_REMAP_TABLE)'
+			for f in alias_functions:
+				for name in f.entry_points:
+					if name != f.name:
+						print '#define %s_remap_index %s_remap_index' % (name, f.name)
+			print '#endif /* defined(_GLAPI_USE_REMAP_TABLE) */'
+			print ''
+
+		return
+
+
+def show_usage():
+	print "Usage: %s [-f input_file_name] [-m mode] [-c]" % sys.argv[0]
+	print "    -m mode   Mode can be 'table' or 'remap_table'."
+	print "    -c        Enable compatibility with OpenGL ES."
+	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()
+
+	mode = "table"
+	es = False
+	for (arg,val) in args:
+		if arg == "-f":
+			file_name = val
+		elif arg == "-m":
+			mode = val
+		elif arg == "-c":
+			es = True
+
+	if mode == "table":
+		printer = PrintGlTable(es)
+	elif mode == "remap_table":
+		printer = PrintRemapTable(es)
+	else:
+		show_usage()
+
+	api = gl_XML.parse_GL_API( file_name )
+
+	printer.Print( api )