0,0 → 1,327 |
#!/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 gl_XML, glX_XML |
import license |
import sys, getopt |
|
class PrintGlOffsets(gl_XML.gl_print_base): |
def __init__(self, es=False): |
gl_XML.gl_print_base.__init__(self) |
|
self.name = "gl_apitemp.py (from Mesa)" |
self.license = license.bsd_license_template % ( \ |
"""Copyright (C) 1999-2001 Brian Paul All Rights Reserved. |
(C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM") |
|
self.es = es |
|
self.undef_list.append( "KEYWORD1" ) |
self.undef_list.append( "KEYWORD1_ALT" ) |
self.undef_list.append( "KEYWORD2" ) |
self.undef_list.append( "NAME" ) |
self.undef_list.append( "DISPATCH" ) |
self.undef_list.append( "RETURN_DISPATCH" ) |
self.undef_list.append( "DISPATCH_TABLE_NAME" ) |
self.undef_list.append( "UNUSED_TABLE_NAME" ) |
self.undef_list.append( "TABLE_ENTRY" ) |
|
|
def printFunction(self, f, name): |
p_string = "" |
o_string = "" |
t_string = "" |
comma = "" |
|
if f.is_static_entry_point(name): |
keyword = "KEYWORD1" |
else: |
keyword = "KEYWORD1_ALT" |
|
n = f.static_name(name) |
|
silence = '' |
space = '' |
for p in f.parameterIterator(name): |
if p.is_padding: |
continue |
|
if p.is_pointer(): |
cast = "(const void *) " |
else: |
cast = "" |
|
t_string = t_string + comma + p.format_string() |
p_string = p_string + comma + p.name |
o_string = o_string + comma + cast + p.name |
comma = ", " |
|
silence += "%s(void) %s;" % (space, p.name); |
space = ' ' |
|
|
if f.return_type != 'void': |
dispatch = "RETURN_DISPATCH" |
else: |
dispatch = "DISPATCH" |
|
need_proto = False |
if not f.is_static_entry_point(name): |
need_proto = True |
elif self.es: |
cat, num = api.get_category_for_name(name) |
if (cat.startswith("es") or cat.startswith("GL_OES")): |
need_proto = True |
if need_proto: |
print '%s %s KEYWORD2 NAME(%s)(%s);' % (keyword, f.return_type, n, f.get_parameter_string(name)) |
print '' |
|
print '%s %s KEYWORD2 NAME(%s)(%s)' % (keyword, f.return_type, n, f.get_parameter_string(name)) |
print '{' |
if silence: |
print ' %s' % (silence) |
if p_string == "": |
print ' %s(%s, (), (F, "gl%s();\\n"));' \ |
% (dispatch, f.name, name) |
else: |
print ' %s(%s, (%s), (F, "gl%s(%s);\\n", %s));' \ |
% (dispatch, f.name, p_string, name, t_string, o_string) |
print '}' |
print '' |
return |
|
def printRealHeader(self): |
print '' |
self.printVisibility( "HIDDEN", "hidden" ) |
print """ |
/* |
* This file is a template which generates the OpenGL API entry point |
* functions. It should be included by a .c file which first defines |
* the following macros: |
* KEYWORD1 - usually nothing, but might be __declspec(dllexport) on Win32 |
* KEYWORD2 - usually nothing, but might be __stdcall on Win32 |
* NAME(n) - builds the final function name (usually add "gl" prefix) |
* DISPATCH(func, args, msg) - code to do dispatch of named function. |
* msg is a printf-style debug message. |
* RETURN_DISPATCH(func, args, msg) - code to do dispatch with a return value |
* |
* Here is an example which generates the usual OpenGL functions: |
* #define KEYWORD1 |
* #define KEYWORD2 |
* #define NAME(func) gl##func |
* #define DISPATCH(func, args, msg) \\ |
* struct _glapi_table *dispatch = CurrentDispatch; \\ |
* (*dispatch->func) args |
* #define RETURN DISPATCH(func, args, msg) \\ |
* struct _glapi_table *dispatch = CurrentDispatch; \\ |
* return (*dispatch->func) args |
* |
*/ |
|
|
#if defined( NAME ) |
#ifndef KEYWORD1 |
#define KEYWORD1 |
#endif |
|
#ifndef KEYWORD1_ALT |
#define KEYWORD1_ALT HIDDEN |
#endif |
|
#ifndef KEYWORD2 |
#define KEYWORD2 |
#endif |
|
#ifndef DISPATCH |
#error DISPATCH must be defined |
#endif |
|
#ifndef RETURN_DISPATCH |
#error RETURN_DISPATCH must be defined |
#endif |
|
""" |
return |
|
|
|
def printInitDispatch(self, api): |
print """ |
#endif /* defined( NAME ) */ |
|
/* |
* This is how a dispatch table can be initialized with all the functions |
* we generated above. |
*/ |
#ifdef DISPATCH_TABLE_NAME |
|
#ifndef TABLE_ENTRY |
#error TABLE_ENTRY must be defined |
#endif |
|
#ifdef _GLAPI_SKIP_NORMAL_ENTRY_POINTS |
#error _GLAPI_SKIP_NORMAL_ENTRY_POINTS must not be defined |
#endif |
|
_glapi_proc DISPATCH_TABLE_NAME[] = {""" |
for f in api.functionIterateByOffset(): |
print ' TABLE_ENTRY(%s),' % (f.dispatch_name()) |
|
print ' /* A whole bunch of no-op functions. These might be called' |
print ' * when someone tries to call a dynamically-registered' |
print ' * extension function without a current rendering context.' |
print ' */' |
for i in range(1, 100): |
print ' TABLE_ENTRY(Unused),' |
|
print '};' |
print '#endif /* DISPATCH_TABLE_NAME */' |
print '' |
return |
|
|
def printAliasedTable(self, api): |
print """ |
/* |
* This is just used to silence compiler warnings. |
* We list the functions which are not otherwise used. |
*/ |
#ifdef UNUSED_TABLE_NAME |
_glapi_proc UNUSED_TABLE_NAME[] = {""" |
|
normal_entries = [] |
proto_entries = [] |
for f in api.functionIterateByOffset(): |
normal_ents, proto_ents = self.classifyEntryPoints(f) |
|
# exclude f.name |
if f.name in normal_ents: |
normal_ents.remove(f.name) |
elif f.name in proto_ents: |
proto_ents.remove(f.name) |
|
normal_ents = [f.static_name(ent) for ent in normal_ents] |
proto_ents = [f.static_name(ent) for ent in proto_ents] |
|
normal_entries.extend(normal_ents) |
proto_entries.extend(proto_ents) |
|
print '#ifndef _GLAPI_SKIP_NORMAL_ENTRY_POINTS' |
for ent in normal_entries: |
print ' TABLE_ENTRY(%s),' % (ent) |
print '#endif /* _GLAPI_SKIP_NORMAL_ENTRY_POINTS */' |
print '#ifndef _GLAPI_SKIP_PROTO_ENTRY_POINTS' |
for ent in proto_entries: |
print ' TABLE_ENTRY(%s),' % (ent) |
print '#endif /* _GLAPI_SKIP_PROTO_ENTRY_POINTS */' |
|
print '};' |
print '#endif /*UNUSED_TABLE_NAME*/' |
print '' |
return |
|
|
def classifyEntryPoints(self, func): |
normal_names = [] |
normal_stubs = [] |
proto_names = [] |
proto_stubs = [] |
# classify the entry points |
for name in func.entry_points: |
if func.has_different_protocol(name): |
if func.is_static_entry_point(name): |
proto_names.append(name) |
else: |
proto_stubs.append(name) |
else: |
if func.is_static_entry_point(name): |
normal_names.append(name) |
else: |
normal_stubs.append(name) |
# there can be at most one stub for a function |
if normal_stubs: |
normal_names.append(normal_stubs[0]) |
elif proto_stubs: |
proto_names.append(proto_stubs[0]) |
|
return (normal_names, proto_names) |
|
def printBody(self, api): |
normal_entry_points = [] |
proto_entry_points = [] |
for func in api.functionIterateByOffset(): |
normal_ents, proto_ents = self.classifyEntryPoints(func) |
normal_entry_points.append((func, normal_ents)) |
proto_entry_points.append((func, proto_ents)) |
|
print '#ifndef _GLAPI_SKIP_NORMAL_ENTRY_POINTS' |
print '' |
for func, ents in normal_entry_points: |
for ent in ents: |
self.printFunction(func, ent) |
print '' |
print '#endif /* _GLAPI_SKIP_NORMAL_ENTRY_POINTS */' |
print '' |
print '/* these entry points might require different protocols */' |
print '#ifndef _GLAPI_SKIP_PROTO_ENTRY_POINTS' |
print '' |
for func, ents in proto_entry_points: |
for ent in ents: |
self.printFunction(func, ent) |
print '' |
print '#endif /* _GLAPI_SKIP_PROTO_ENTRY_POINTS */' |
print '' |
|
self.printInitDispatch(api) |
self.printAliasedTable(api) |
return |
|
|
def show_usage(): |
print "Usage: %s [-f input_file_name] [-c]" % sys.argv[0] |
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:c") |
except Exception,e: |
show_usage() |
|
es = False |
for (arg,val) in args: |
if arg == "-f": |
file_name = val |
elif arg == "-c": |
es = True |
|
api = gl_XML.parse_GL_API(file_name, glX_XML.glx_item_factory()) |
|
printer = PrintGlOffsets(es) |
printer.Print(api) |