2004-05-18 19:33:40 +01:00
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Mammoth update to the Python code generator scripts that live in
src/mesa/glapi. Basically, the scripts that did simple things (like
gl_offsets.py) were simple, and the scripts that did more complicated things
(like glX_proto_send.py) were getting progressively more and more out of
control. So, I re-write the foundation classes on which everything is based.
One problem with the existing code is that the division between the GL API
database representation and the way the output code is generated was either
blury or nonexistant. The new code somewhat follows the
Model-View-Controller pattern, minus the Controller. There is a distinct
set of classes that model the API data, and there is a distinct set of
classes that generate code from that data.
One big change is in the class that represents GL functions (was glFunction,
is now gl_function). There used to be an instance of this calls for each
function and for each alias to that function. For example, there was an
instance for PointParameterivSGIS, PointParameterivEXT, PointParameterivARB,
and PointParameteriv. In the new code, there is one instance. Each
instance has a list of entrypoint names for the function. In the next
revision, this will allow a couple useful things. The script will be able
to verify that the parameters, return type, and GLX protocol for a function
and all it's aliases match.
It will also allow aliases to be represented in the XML more compactly.
Instead of repeating all the information, an alias can be listed as:
<function name="PointParameterivARB" alias="PointParameterivEXT"/>
Because the data representation was changed, the order that the alias
functions are processed by the scripts also changed. This accounts for at
least 2,700 of the ~3,600 lines of diffs in the generated code.
Most of the remaining ~900 lines of diffs are the result of bugs *fixed* by
the new scripts. The old scripts also generated code with some bugs in it.
These bugs were discovered while the new code was being written.
These changes were discussed on the mesa3d-dev mailing list back at the end
of May:
http://marc.theaimsgroup.com/?t=111714569000004&r=1&w=2
Xorg bug: 3197, 3208
2005-06-22 00:42:43 +01:00
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# (C) Copyright IBM Corporation 2004, 2005
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2004-05-18 19:33:40 +01:00
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# All Rights Reserved.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# on the rights to use, copy, modify, merge, publish, distribute, sub
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# license, and/or sell copies of the Software, and to permit persons to whom
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# the Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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# IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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#
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# Authors:
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# Ian Romanick <idr@us.ibm.com>
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2014-11-24 22:14:12 +00:00
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import argparse
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2014-11-21 01:07:48 +00:00
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2004-05-18 19:33:40 +01:00
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import license
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2014-11-21 01:07:48 +00:00
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import gl_XML
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import glX_XML
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2004-05-18 19:33:40 +01:00
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Mammoth update to the Python code generator scripts that live in
src/mesa/glapi. Basically, the scripts that did simple things (like
gl_offsets.py) were simple, and the scripts that did more complicated things
(like glX_proto_send.py) were getting progressively more and more out of
control. So, I re-write the foundation classes on which everything is based.
One problem with the existing code is that the division between the GL API
database representation and the way the output code is generated was either
blury or nonexistant. The new code somewhat follows the
Model-View-Controller pattern, minus the Controller. There is a distinct
set of classes that model the API data, and there is a distinct set of
classes that generate code from that data.
One big change is in the class that represents GL functions (was glFunction,
is now gl_function). There used to be an instance of this calls for each
function and for each alias to that function. For example, there was an
instance for PointParameterivSGIS, PointParameterivEXT, PointParameterivARB,
and PointParameteriv. In the new code, there is one instance. Each
instance has a list of entrypoint names for the function. In the next
revision, this will allow a couple useful things. The script will be able
to verify that the parameters, return type, and GLX protocol for a function
and all it's aliases match.
It will also allow aliases to be represented in the XML more compactly.
Instead of repeating all the information, an alias can be listed as:
<function name="PointParameterivARB" alias="PointParameterivEXT"/>
Because the data representation was changed, the order that the alias
functions are processed by the scripts also changed. This accounts for at
least 2,700 of the ~3,600 lines of diffs in the generated code.
Most of the remaining ~900 lines of diffs are the result of bugs *fixed* by
the new scripts. The old scripts also generated code with some bugs in it.
These bugs were discovered while the new code was being written.
These changes were discussed on the mesa3d-dev mailing list back at the end
of May:
http://marc.theaimsgroup.com/?t=111714569000004&r=1&w=2
Xorg bug: 3197, 3208
2005-06-22 00:42:43 +01:00
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class PrintGlProcs(gl_XML.gl_print_base):
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2014-04-01 20:40:18 +01:00
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def __init__(self, es=False):
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2012-10-10 15:20:57 +01:00
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gl_XML.gl_print_base.__init__(self)
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Mammoth update to the Python code generator scripts that live in
src/mesa/glapi. Basically, the scripts that did simple things (like
gl_offsets.py) were simple, and the scripts that did more complicated things
(like glX_proto_send.py) were getting progressively more and more out of
control. So, I re-write the foundation classes on which everything is based.
One problem with the existing code is that the division between the GL API
database representation and the way the output code is generated was either
blury or nonexistant. The new code somewhat follows the
Model-View-Controller pattern, minus the Controller. There is a distinct
set of classes that model the API data, and there is a distinct set of
classes that generate code from that data.
One big change is in the class that represents GL functions (was glFunction,
is now gl_function). There used to be an instance of this calls for each
function and for each alias to that function. For example, there was an
instance for PointParameterivSGIS, PointParameterivEXT, PointParameterivARB,
and PointParameteriv. In the new code, there is one instance. Each
instance has a list of entrypoint names for the function. In the next
revision, this will allow a couple useful things. The script will be able
to verify that the parameters, return type, and GLX protocol for a function
and all it's aliases match.
It will also allow aliases to be represented in the XML more compactly.
Instead of repeating all the information, an alias can be listed as:
<function name="PointParameterivARB" alias="PointParameterivEXT"/>
Because the data representation was changed, the order that the alias
functions are processed by the scripts also changed. This accounts for at
least 2,700 of the ~3,600 lines of diffs in the generated code.
Most of the remaining ~900 lines of diffs are the result of bugs *fixed* by
the new scripts. The old scripts also generated code with some bugs in it.
These bugs were discovered while the new code was being written.
These changes were discussed on the mesa3d-dev mailing list back at the end
of May:
http://marc.theaimsgroup.com/?t=111714569000004&r=1&w=2
Xorg bug: 3197, 3208
2005-06-22 00:42:43 +01:00
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2012-10-10 15:20:57 +01:00
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self.es = es
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self.name = "gl_procs.py (from Mesa)"
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self.license = license.bsd_license_template % ( \
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2004-05-18 19:33:40 +01:00
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"""Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
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2006-10-11 23:37:14 +01:00
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(C) Copyright IBM Corporation 2004, 2006""", "BRIAN PAUL, IBM")
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2004-05-18 19:33:40 +01:00
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2012-10-10 15:20:57 +01:00
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def printRealHeader(self):
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2018-07-05 14:17:32 +01:00
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print("""
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2006-10-11 23:37:14 +01:00
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/* This file is only included by glapi.c and is used for
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* the GetProcAddress() function
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*/
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typedef struct {
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GLint Name_offset;
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#if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING)
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_glapi_proc Address;
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#endif
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GLuint Offset;
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} glprocs_table_t;
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#if !defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING)
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# define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , o }
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#elif defined(NEED_FUNCTION_POINTER) && !defined(GLX_INDIRECT_RENDERING)
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# define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f1 , o }
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#elif defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING)
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# define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f2 , o }
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#elif !defined(NEED_FUNCTION_POINTER) && defined(GLX_INDIRECT_RENDERING)
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# define NAME_FUNC_OFFSET(n,f1,f2,f3,o) { n , (_glapi_proc) f3 , o }
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#endif
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2018-07-05 14:17:32 +01:00
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""")
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2012-10-10 15:20:57 +01:00
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return
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def printRealFooter(self):
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2018-07-05 14:17:32 +01:00
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print('')
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print('#undef NAME_FUNC_OFFSET')
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2012-10-10 15:20:57 +01:00
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return
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def printFunctionString(self, name):
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2018-07-05 14:17:32 +01:00
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print(' "gl%s\\0"' % (name))
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2012-10-10 15:20:57 +01:00
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def printBody(self, api):
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2018-07-05 14:17:32 +01:00
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print('')
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print('static const char gl_string_table[] =')
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2012-10-10 15:20:57 +01:00
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base_offset = 0
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table = []
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for func in api.functionIterateByOffset():
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name = func.dispatch_name()
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self.printFunctionString(func.name)
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table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset))
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# The length of the function's name, plus 2 for "gl",
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# plus 1 for the NUL.
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base_offset += len(func.name) + 3
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for func in api.functionIterateByOffset():
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for n in func.entry_points:
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if n != func.name:
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name = func.dispatch_name()
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self.printFunctionString( n )
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if func.has_different_protocol(n):
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alt_name = "gl" + func.static_glx_name(n)
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table.append((base_offset, "gl" + name, alt_name, alt_name, func.offset))
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else:
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table.append((base_offset, "gl" + name, "gl" + name, "NULL", func.offset))
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base_offset += len(n) + 3
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2018-07-05 14:17:32 +01:00
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print(' ;')
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print('')
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print('')
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print('#if defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING)')
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2012-10-10 15:20:57 +01:00
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for func in api.functionIterateByOffset():
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for n in func.entry_points:
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if (not func.is_static_entry_point(func.name)) or (func.has_different_protocol(n) and not func.is_static_entry_point(n)):
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2018-07-05 14:17:32 +01:00
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print('%s GLAPIENTRY gl_dispatch_stub_%u(%s);' % (func.return_type, func.offset, func.get_parameter_string()))
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2012-10-10 15:20:57 +01:00
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break
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if self.es:
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categories = {}
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for func in api.functionIterateByOffset():
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for n in func.entry_points:
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cat, num = api.get_category_for_name(n)
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if (cat.startswith("es") or cat.startswith("GL_OES")):
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2018-07-05 14:17:35 +01:00
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if cat not in categories:
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2012-10-10 15:20:57 +01:00
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categories[cat] = []
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proto = 'GLAPI %s GLAPIENTRY %s(%s);' \
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% (func.return_type, "gl" + n, func.get_parameter_string(n))
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categories[cat].append(proto)
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if categories:
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2018-07-05 14:17:32 +01:00
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print('')
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print('/* OpenGL ES specific prototypes */')
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print('')
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2018-07-06 11:17:50 +01:00
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keys = sorted(categories.keys())
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2012-10-10 15:20:57 +01:00
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for key in keys:
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2018-07-05 14:17:32 +01:00
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print('/* category %s */' % key)
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print("\n".join(categories[key]))
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print('')
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2012-10-10 15:20:57 +01:00
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2018-07-05 14:17:32 +01:00
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print('#endif /* defined(NEED_FUNCTION_POINTER) || defined(GLX_INDIRECT_RENDERING) */')
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2012-10-10 15:20:57 +01:00
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2018-07-05 14:17:32 +01:00
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print('')
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print('static const glprocs_table_t static_functions[] = {')
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2012-10-10 15:20:57 +01:00
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for info in table:
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2018-07-05 14:17:32 +01:00
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print(' NAME_FUNC_OFFSET(%5u, %s, %s, %s, %d),' % info)
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2012-10-10 15:20:57 +01:00
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2018-07-05 14:17:32 +01:00
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print(' NAME_FUNC_OFFSET(-1, NULL, NULL, NULL, 0)')
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print('};')
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2012-10-10 15:20:57 +01:00
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return
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2004-05-18 19:33:40 +01:00
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2014-11-24 22:14:12 +00:00
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def _parser():
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"""Parse arguments and return a namepsace."""
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parser = argparse.ArgumentParser()
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parser.add_argument('-f', '--filename',
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default='gl_API.xml',
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metavar="input_file_name",
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2015-05-26 11:01:57 +01:00
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dest='file_name',
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2014-11-24 22:14:12 +00:00
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help="Path to an XML description of OpenGL API.")
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parser.add_argument('-c', '--es-version',
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dest='es',
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action="store_true",
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help="filter functions for es")
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return parser.parse_args()
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2004-05-18 19:33:40 +01:00
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2014-11-21 01:07:48 +00:00
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def main():
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"""Main function."""
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2014-11-24 22:14:12 +00:00
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args = _parser()
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2015-05-26 11:01:57 +01:00
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api = gl_XML.parse_GL_API(args.file_name, glX_XML.glx_item_factory())
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PrintGlProcs(args.es).Print(api)
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2014-11-21 01:07:48 +00:00
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if __name__ == '__main__':
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main()
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