3 # Copyright (C) 2012 Intel Corporation
5 # Permission is hereby granted, free of charge, to any person obtaining a
6 # copy of this software and associated documentation files (the "Software"),
7 # to deal in the Software without restriction, including without limitation
8 # the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 # and/or sell copies of the Software, and to permit persons to whom the
10 # Software is furnished to do so, subject to the following conditions:
12 # The above copyright notice and this permission notice (including the next
13 # paragraph) shall be included in all copies or substantial portions of the
16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 # THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
37 #include "marshal_generated.h"
46 print ' '*current_indent
+ str
51 @contextlib.contextmanager
52 def indent(delta
= 3):
54 current_indent
+= delta
56 current_indent
-= delta
59 class PrintCode(gl_XML
.gl_print_base
):
61 super(PrintCode
, self
).__init
__()
63 self
.name
= 'gl_marshal.py'
64 self
.license
= license
.bsd_license_template
% (
65 'Copyright (C) 2012 Intel Corporation', 'INTEL CORPORATION')
67 def printRealHeader(self
):
69 print '#include <X11/Xlib-xcb.h>'
71 print 'static _X_INLINE int safe_mul(int a, int b)'
73 print ' if (a < 0 || b < 0) return -1;'
74 print ' if (a == 0 || b == 0) return 0;'
75 print ' if (a > INT_MAX / b) return -1;'
76 print ' return a * b;'
80 def printRealFooter(self
):
83 def print_sync_call(self
, func
):
84 call
= 'CALL_{0}(ctx->CurrentServerDispatch, ({1}))'.format(
85 func
.name
, func
.get_called_parameter_string())
86 if func
.return_type
== 'void':
87 out('{0};'.format(call
))
89 out('return {0};'.format(call
))
91 def print_sync_dispatch(self
, func
):
92 out('_mesa_glthread_finish(ctx);')
93 self
.print_sync_call(func
)
95 def print_sync_body(self
, func
):
96 out('/* {0}: marshalled synchronously */'.format(func
.name
))
97 out('static {0} GLAPIENTRY'.format(func
.return_type
))
98 out('_mesa_marshal_{0}({1})'.format(func
.name
, func
.get_parameter_string()))
101 out('GET_CURRENT_CONTEXT(ctx);')
102 out('_mesa_glthread_finish(ctx);')
103 out('debug_print_sync("{0}");'.format(func
.name
))
104 self
.print_sync_call(func
)
109 def print_async_dispatch(self
, func
):
110 out('cmd = _mesa_glthread_allocate_command(ctx, '
111 'DISPATCH_CMD_{0}, cmd_size);'.format(func
.name
))
112 for p
in func
.fixed_params
:
114 out('memcpy(cmd->{0}, {0}, {1});'.format(
115 p
.name
, p
.size_string()))
117 out('cmd->{0} = {0};'.format(p
.name
))
118 if func
.variable_params
:
119 out('char *variable_data = (char *) (cmd + 1);')
120 for p
in func
.variable_params
:
121 out(('memcpy(variable_data, {0}, {1});').format(
122 p
.name
, p
.size_string(False)))
123 out('variable_data += {0};'.format(
124 p
.size_string(False)))
125 if not func
.fixed_params
and not func
.variable_params
:
127 out('_mesa_post_marshal_hook(ctx);')
129 def print_async_struct(self
, func
):
130 out('struct marshal_cmd_{0}'.format(func
.name
))
133 out('struct marshal_cmd_base cmd_base;')
134 for p
in func
.fixed_params
:
136 out('{0} {1}[{2}];'.format(
137 p
.get_base_type_string(), p
.name
, p
.count
))
139 out('{0} {1};'.format(p
.type_string(), p
.name
))
140 for p
in func
.variable_params
:
141 if p
.count_scale
!= 1:
142 out(('/* Next {0} bytes are '
143 '{1} {2}[{3}][{4}] */').format(
144 p
.size_string(), p
.get_base_type_string(),
145 p
.name
, p
.counter
, p
.count_scale
))
147 out(('/* Next {0} bytes are '
148 '{1} {2}[{3}] */').format(
149 p
.size_string(), p
.get_base_type_string(),
153 def print_async_unmarshal(self
, func
):
154 out('static inline void')
155 out(('_mesa_unmarshal_{0}(struct gl_context *ctx, '
156 'const struct marshal_cmd_{0} *cmd)').format(func
.name
))
159 for p
in func
.fixed_params
:
161 out('const {0} * {1} = cmd->{1};'.format(
162 p
.get_base_type_string(), p
.name
))
164 out('const {0} {1} = cmd->{1};'.format(
165 p
.type_string(), p
.name
))
166 if func
.variable_params
:
167 for p
in func
.variable_params
:
168 out('const {0} * {1};'.format(
169 p
.get_base_type_string(), p
.name
))
170 out('const char *variable_data = (const char *) (cmd + 1);')
171 for p
in func
.variable_params
:
172 out('{0} = (const {1} *) variable_data;'.format(
173 p
.name
, p
.get_base_type_string()))
174 out('variable_data += {0};'.format(p
.size_string(False)))
175 self
.print_sync_call(func
)
178 def validate_count_or_return(self
, func
):
179 # Check that any counts for variable-length arguments might be < 0, in
180 # which case the command alloc or the memcpy would blow up before we
181 # get to the validation in Mesa core.
182 for p
in func
.parameters
:
183 if p
.is_variable_length():
184 out('if (unlikely({0} < 0)) {{'.format(p
.size_string()))
186 out('_mesa_glthread_finish(ctx);')
187 out('_mesa_error(ctx, GL_INVALID_VALUE, "{0}({1} < 0)");'.format(func
.name
, p
.size_string()))
191 def print_async_marshal(self
, func
):
192 out('static void GLAPIENTRY')
193 out('_mesa_marshal_{0}({1})'.format(
194 func
.name
, func
.get_parameter_string()))
197 out('GET_CURRENT_CONTEXT(ctx);')
198 struct
= 'struct marshal_cmd_{0}'.format(func
.name
)
199 size_terms
= ['sizeof({0})'.format(struct
)]
200 for p
in func
.variable_params
:
201 size_terms
.append(p
.size_string())
202 out('size_t cmd_size = {0};'.format(' + '.join(size_terms
)))
203 out('{0} *cmd;'.format(struct
))
205 out('debug_print_marshal("{0}");'.format(func
.name
))
207 self
.validate_count_or_return(func
)
209 out('if (cmd_size <= MARSHAL_MAX_CMD_SIZE) {')
211 self
.print_async_dispatch(func
)
214 self
.print_sync_dispatch(func
)
219 def print_async_body(self
, func
):
220 out('/* {0}: marshalled asynchronously */'.format(func
.name
))
221 self
.print_async_struct(func
)
222 self
.print_async_unmarshal(func
)
223 self
.print_async_marshal(func
)
227 def print_unmarshal_dispatch_cmd(self
, api
):
229 out('_mesa_unmarshal_dispatch_cmd(struct gl_context *ctx, '
233 out('const struct marshal_cmd_base *cmd_base = cmd;')
234 out('switch (cmd_base->cmd_id) {')
235 for func
in api
.functionIterateAll():
236 flavor
= func
.marshal_flavor()
237 if flavor
in ('skip', 'sync'):
239 out('case DISPATCH_CMD_{0}:'.format(func
.name
))
241 out('debug_print_unmarshal("{0}");'.format(func
.name
))
242 out(('_mesa_unmarshal_{0}(ctx, (const struct marshal_cmd_{0} *)'
243 ' cmd);').format(func
.name
))
247 out('assert(!"Unrecognized command ID");')
251 out('return cmd_base->cmd_size;')
256 def print_create_marshal_table(self
, api
):
257 out('struct _glapi_table *')
258 out('_mesa_create_marshal_table(const struct gl_context *ctx)')
261 out('struct _glapi_table *table;')
263 out('table = _mesa_alloc_dispatch_table();')
264 out('if (table == NULL)')
268 for func
in api
.functionIterateAll():
269 if func
.marshal_flavor() == 'skip':
271 out('SET_{0}(table, _mesa_marshal_{0});'.format(func
.name
))
278 def printBody(self
, api
):
280 for func
in api
.functionIterateAll():
281 flavor
= func
.marshal_flavor()
282 if flavor
in ('skip', 'custom'):
284 elif flavor
== 'async':
285 self
.print_async_body(func
)
286 async_funcs
.append(func
)
287 elif flavor
== 'sync':
288 self
.print_sync_body(func
)
289 self
.print_unmarshal_dispatch_cmd(api
)
290 self
.print_create_marshal_table(api
)
294 print 'Usage: %s [-f input_file_name]' % sys
.argv
[0]
298 if __name__
== '__main__':
299 file_name
= 'gl_API.xml'
302 (args
, trail
) = getopt
.getopt(sys
.argv
[1:], 'm:f:')
306 for (arg
,val
) in args
:
310 printer
= PrintCode()
312 api
= gl_XML
.parse_GL_API(file_name
, marshal_XML
.marshal_item_factory())