1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
|
#!/usr/bin/env python
# Copyright (C) 2012 Intel Corporation
#
# 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
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# 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 NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS 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.
# This script generates the file api_exec.c, which contains
# _mesa_initialize_exec_table(). It is responsible for populating all
# entries in the "exec" dispatch table that aren't dynamic.
import argparse
import collections
import license
import gl_XML
import sys
import apiexec
exec_flavor_map = {
'dynamic': None,
'mesa': '_mesa_',
'skip': None,
}
header = """/**
* \\file api_exec.c
* Initialize dispatch table.
*/
#include "main/accum.h"
#include "main/api_loopback.h"
#include "main/api_exec.h"
#include "main/arbprogram.h"
#include "main/atifragshader.h"
#include "main/attrib.h"
#include "main/blend.h"
#include "main/blit.h"
#include "main/bufferobj.h"
#include "main/arrayobj.h"
#include "main/buffers.h"
#include "main/clear.h"
#include "main/clip.h"
#include "main/colortab.h"
#include "main/compute.h"
#include "main/condrender.h"
#include "main/context.h"
#include "main/convolve.h"
#include "main/copyimage.h"
#include "main/depth.h"
#include "main/debug_output.h"
#include "main/dlist.h"
#include "main/drawpix.h"
#include "main/drawtex.h"
#include "main/rastpos.h"
#include "main/enable.h"
#include "main/errors.h"
#include "main/es1_conversion.h"
#include "main/eval.h"
#include "main/get.h"
#include "main/feedback.h"
#include "main/fog.h"
#include "main/fbobject.h"
#include "main/framebuffer.h"
#include "main/genmipmap.h"
#include "main/hint.h"
#include "main/histogram.h"
#include "main/imports.h"
#include "main/light.h"
#include "main/lines.h"
#include "main/matrix.h"
#include "main/multisample.h"
#include "main/objectlabel.h"
#include "main/objectpurge.h"
#include "main/performance_monitor.h"
#include "main/pipelineobj.h"
#include "main/pixel.h"
#include "main/pixelstore.h"
#include "main/points.h"
#include "main/polygon.h"
#include "main/program_resource.h"
#include "main/querymatrix.h"
#include "main/queryobj.h"
#include "main/readpix.h"
#include "main/samplerobj.h"
#include "main/scissor.h"
#include "main/stencil.h"
#include "main/texenv.h"
#include "main/texgetimage.h"
#include "main/teximage.h"
#include "main/texgen.h"
#include "main/texobj.h"
#include "main/texparam.h"
#include "main/texstate.h"
#include "main/texstorage.h"
#include "main/barrier.h"
#include "main/textureview.h"
#include "main/transformfeedback.h"
#include "main/mtypes.h"
#include "main/varray.h"
#include "main/viewport.h"
#include "main/shaderapi.h"
#include "main/shaderimage.h"
#include "main/uniforms.h"
#include "main/syncobj.h"
#include "main/formatquery.h"
#include "main/dispatch.h"
#include "main/vdpau.h"
#include "vbo/vbo.h"
/**
* Initialize a context's exec table with pointers to Mesa's supported
* GL functions.
*
* This function depends on ctx->Version.
*
* \param ctx GL context to which \c exec belongs.
*/
void
_mesa_initialize_exec_table(struct gl_context *ctx)
{
struct _glapi_table *exec;
exec = ctx->Exec;
assert(exec != NULL);
assert(ctx->Version > 0);
vbo_initialize_exec_dispatch(ctx, exec);
"""
footer = """
}
"""
class PrintCode(gl_XML.gl_print_base):
def __init__(self):
gl_XML.gl_print_base.__init__(self)
self.name = 'gl_genexec.py'
self.license = license.bsd_license_template % (
'Copyright (C) 2012 Intel Corporation',
'Intel Corporation')
def printRealHeader(self):
print header
def printRealFooter(self):
print footer
def printBody(self, api):
# Collect SET_* calls by the condition under which they should
# be called.
settings_by_condition = collections.defaultdict(lambda: [])
for f in api.functionIterateAll():
if f.exec_flavor not in exec_flavor_map:
raise Exception(
'Unrecognized exec flavor {0!r}'.format(f.exec_flavor))
condition_parts = []
if f.name in apiexec.functions:
ex = apiexec.functions[f.name]
unconditional_count = 0
if ex.compatibility is not None:
condition_parts.append('ctx->API == API_OPENGL_COMPAT')
unconditional_count += 1
if ex.core is not None:
condition_parts.append('ctx->API == API_OPENGL_CORE')
unconditional_count += 1
if ex.es1 is not None:
condition_parts.append('ctx->API == API_OPENGLES')
unconditional_count += 1
if ex.es2 is not None:
if ex.es2 > 20:
condition_parts.append('(ctx->API == API_OPENGLES2 && ctx->Version >= {0})'.format(ex.es2))
else:
condition_parts.append('ctx->API == API_OPENGLES2')
unconditional_count += 1
# If the function is unconditionally available in all four
# APIs, then it is always available. Replace the complex
# tautology condition with "true" and let GCC do the right
# thing.
if unconditional_count == 4:
condition_parts = ['true']
else:
if f.desktop:
if f.deprecated:
condition_parts.append('ctx->API == API_OPENGL_COMPAT')
else:
condition_parts.append('_mesa_is_desktop_gl(ctx)')
if 'es1' in f.api_map:
condition_parts.append('ctx->API == API_OPENGLES')
if 'es2' in f.api_map:
if f.api_map['es2'] > 2.0:
condition_parts.append('(ctx->API == API_OPENGLES2 && ctx->Version >= {0})'.format(int(f.api_map['es2'] * 10)))
else:
condition_parts.append('ctx->API == API_OPENGLES2')
if not condition_parts:
# This function does not exist in any API.
continue
condition = ' || '.join(condition_parts)
prefix = exec_flavor_map[f.exec_flavor]
if prefix is None:
# This function is not implemented, or is dispatched
# dynamically.
continue
settings_by_condition[condition].append(
'SET_{0}(exec, {1}{0});'.format(f.name, prefix, f.name))
# Print out an if statement for each unique condition, with
# the SET_* calls nested inside it.
for condition in sorted(settings_by_condition.keys()):
print ' if ({0}) {{'.format(condition)
for setting in sorted(settings_by_condition[condition]):
print ' {0}'.format(setting)
print ' }'
def _parser():
"""Parse arguments and return namespace."""
parser = argparse.ArgumentParser()
parser.add_argument('-f',
dest='filename',
default='gl_and_es_API.xml',
help='an xml file describing an API')
return parser.parse_args()
def main():
"""Main function."""
args = _parser()
printer = PrintCode()
api = gl_XML.parse_GL_API(args.filename)
printer.Print(api)
if __name__ == '__main__':
main()
|
