2 # (C) Copyright IBM Corporation 2004
4 # Copyright (c) 2014 Intel Corporation
6 # Permission is hereby granted, free of charge, to any person obtaining a
7 # copy of this software and associated documentation files (the "Software"),
8 # to deal in the Software without restriction, including without limitation
9 # on the rights to use, copy, modify, merge, publish, distribute, sub
10 # license, and/or sell copies of the Software, and to permit persons to whom
11 # the Software is furnished to do so, subject to the following conditions:
13 # The above copyright notice and this permission notice (including the next
14 # paragraph) shall be included in all copies or substantial portions of the
17 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 # FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
20 # IBM AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 # FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
26 # Ian Romanick <idr@us.ibm.com>
28 from __future__
import print_function
36 class PrintGlTable(gl_XML
.gl_print_base
):
38 gl_XML
.gl_print_base
.__init
__(self
)
40 self
.header_tag
= '_GLAPI_TABLE_H_'
41 self
.name
= "gl_table.py (from Mesa)"
42 self
.license
= license
.bsd_license_template
% ( \
43 """Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
44 (C) Copyright IBM Corporation 2004""", "BRIAN PAUL, IBM")
47 def printBody(self
, api
):
48 for f
in api
.functionIterateByOffset():
49 arg_string
= f
.get_parameter_string()
50 print(' %s (GLAPIENTRYP %s)(%s); /* %d */' % (
51 f
.return_type
, f
.name
, arg_string
, f
.offset
))
53 def printRealHeader(self
):
54 print('#ifndef GLAPIENTRYP')
55 print('# ifndef GLAPIENTRY')
56 print('# define GLAPIENTRY')
59 print('# define GLAPIENTRYP GLAPIENTRY *')
63 print('#ifdef __cplusplus')
67 print('struct _glapi_table')
71 def printRealFooter(self
):
74 print('#ifdef __cplusplus')
80 class PrintRemapTable(gl_XML
.gl_print_base
):
82 gl_XML
.gl_print_base
.__init
__(self
)
84 self
.header_tag
= '_DISPATCH_H_'
85 self
.name
= "gl_table.py (from Mesa)"
86 self
.license
= license
.bsd_license_template
% (
87 "(C) Copyright IBM Corporation 2005", "IBM")
91 def printRealHeader(self
):
94 * \\file main/dispatch.h
95 * Macros for handling GL dispatch tables.
97 * For each known GL function, there are 3 macros in this file. The first
98 * macro is named CALL_FuncName and is used to call that GL function using
99 * the specified dispatch table. The other 2 macros, called GET_FuncName
100 * can SET_FuncName, are used to get and set the dispatch pointer for the
101 * named function in the specified dispatch table.
104 #include "main/glheader.h"
106 print('#include "main/glheader.h"')
110 def printBody(self
, api
):
111 print('#define CALL_by_offset(disp, cast, offset, parameters) \\')
112 print(' (*(cast (GET_by_offset(disp, offset)))) parameters')
113 print('#define GET_by_offset(disp, offset) \\')
114 print(' (offset >= 0) ? (((_glapi_proc *)(disp))[offset]) : NULL')
115 print('#define SET_by_offset(disp, offset, fn) \\')
117 print(' if ( (offset) < 0 ) { \\')
118 print(' /* fprintf( stderr, "[%s:%u] SET_by_offset(%p, %d, %s)!\\n", */ \\')
119 print(' /* __func__, __LINE__, disp, offset, # fn); */ \\')
120 print(' /* abort(); */ \\')
123 print(' ( (_glapi_proc *) (disp) )[offset] = (_glapi_proc) fn; \\')
131 for f
in api
.functionIterateByOffset():
133 functions
.append([f
, count
])
136 abi_functions
.append([f
, -1])
138 print('/* total number of offsets below */')
139 print('#define _gloffset_COUNT %d' % (len(abi_functions
+ functions
)))
142 for f
, index
in abi_functions
:
143 print('#define _gloffset_%s %d' % (f
.name
, f
.offset
))
145 remap_table
= "driDispatchRemapTable"
147 print('#define %s_size %u' % (remap_table
, count
))
148 print('extern int %s[ %s_size ];' % (remap_table
, remap_table
))
151 for f
, index
in functions
:
152 print('#define %s_remap_index %u' % (f
.name
, index
))
156 for f
, index
in functions
:
157 print('#define _gloffset_%s %s[%s_remap_index]' % (f
.name
, remap_table
, f
.name
))
161 for f
, index
in abi_functions
+ functions
:
162 arg_string
= gl_XML
.create_parameter_string(f
.parameters
, 0)
164 print('typedef %s (GLAPIENTRYP _glptr_%s)(%s);' % (f
.return_type
, f
.name
, arg_string
))
165 print('#define CALL_%s(disp, parameters) \\' % (f
.name
))
166 print(' (* GET_%s(disp)) parameters' % (f
.name
))
167 print('static inline _glptr_%s GET_%s(struct _glapi_table *disp) {' % (f
.name
, f
.name
))
168 print(' return (_glptr_%s) (GET_by_offset(disp, _gloffset_%s));' % (f
.name
, f
.name
))
171 print('static inline void SET_%s(struct _glapi_table *disp, %s (GLAPIENTRYP fn)(%s)) {' % (f
.name
, f
.return_type
, arg_string
))
172 print(' SET_by_offset(disp, _gloffset_%s, fn);' % (f
.name
))
180 """Parse arguments and return a namespace."""
181 parser
= argparse
.ArgumentParser()
182 parser
.add_argument('-f', '--filename',
183 default
='gl_API.xml',
184 metavar
="input_file_name",
186 help="Path to an XML description of OpenGL API.")
187 parser
.add_argument('-m', '--mode',
188 choices
=['table', 'remap_table'],
191 help="Generate either a table or a remap_table")
192 return parser
.parse_args()
199 api
= gl_XML
.parse_GL_API(args
.file_name
)
201 if args
.mode
== "table":
202 printer
= PrintGlTable()
203 elif args
.mode
== "remap_table":
204 printer
= PrintRemapTable()
209 if __name__
== '__main__':