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authormarha <marha@users.sourceforge.net>2010-11-22 19:03:06 +0000
committermarha <marha@users.sourceforge.net>2010-11-22 19:03:06 +0000
commit3c67b8c5f69522045d6f869b22fb14f7d7458a57 (patch)
tree7aa1adbb6574c12652f51dd603bded09264a5fb1 /mesalib/src/mapi/glapi/gen/gl_procs.py
parentfb9a3e75110eda70cb0e0306c79827ee81f824ad (diff)
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+#!/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)