2 # Copyright (C) 2012 Intel Corporation
4 # Permission is hereby granted, free of charge, to any person obtaining a
5 # copy of this software and associated documentation files (the "Software"),
6 # to deal in the Software without restriction, including without limitation
7 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 # and/or sell copies of the Software, and to permit persons to whom the
9 # Software is furnished to do so, subject to the following conditions:
11 # The above copyright notice and this permission notice (including the next
12 # paragraph) shall be included in all copies or substantial portions of the
15 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23 # marshal_XML.py: factory for interpreting XML for the purpose of
24 # building thread marshalling code.
29 class marshal_item_factory(gl_XML
.gl_item_factory
):
30 """Factory to create objects derived from gl_item containing
31 information necessary to generate thread marshalling code."""
33 def create_function(self
, element
, context
):
34 return marshal_function(element
, context
)
37 class marshal_function(gl_XML
.gl_function
):
38 def process_element(self
, element
):
39 # Do normal processing.
40 super(marshal_function
, self
).process_element(element
)
42 # Only do further processing when we see the canonical
44 if element
.get('name') != self
.name
:
47 # Classify fixed and variable parameters.
48 self
.fixed_params
= []
49 self
.variable_params
= []
50 for p
in self
.parameters
:
53 if p
.is_variable_length():
54 self
.variable_params
.append(p
)
56 self
.fixed_params
.append(p
)
58 # Store the "marshal" attribute, if present.
59 self
.marshal
= element
.get('marshal')
60 self
.marshal_sync
= element
.get('marshal_sync')
61 self
.marshal_call_after
= element
.get('marshal_call_after')
63 def marshal_flavor(self
):
64 """Find out how this function should be marshalled between
65 client and server threads."""
66 # If a "marshal" attribute was present, that overrides any
67 # determination that would otherwise be made by this function.
68 if self
.marshal
not in (None, 'draw'):
71 if self
.exec_flavor
== 'skip':
72 # Functions marked exec="skip" are not yet implemented in
73 # Mesa, so don't bother trying to marshal them.
76 if self
.return_type
!= 'void':
78 for p
in self
.parameters
:
81 if (p
.is_pointer() and not (p
.count
or p
.counter
or p
.marshal_count
)
82 and not (self
.marshal
== 'draw'
83 and (p
.name
== 'indices' or p
.name
== 'indirect'))):
85 if p
.count_parameter_list
and not p
.marshal_count
:
86 # Parameter size is determined by enums; haven't
87 # written logic to handle this yet. TODO: fix.