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# -*- coding: utf-8 -*-
'''
Copyright (C) 2002 Maurizio Umberto Puxeddu, Michael Gogins
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
Modification from BSD sources for strNcpy
Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
Modified for speed -- JPff
Adapted for Python3 -- François Pinot, 2019
Automatically generate opcode structures, methods [and table entries]. Just run it.
'''
def generate_x_method(f, action, context, rate0, triggered):
if rate0 != 'k':
rate = rate0
else:
rate = ''
if action in ('exec', 'assign', 'eval'):
size = 1024
elif action == 'run':
size = 40960
else:
raise 'undefined action %s' % action
if action in ('run', 'assign'):
helper = 'run_statement'
elif action == 'exec':
helper = 'exec_file'
elif action == 'eval':
helper = 'eval_string'
else:
raise 'undefined action %s' % action
if context == 'private':
prefix = 'l'
ns = 'GETPYLOCAL(p->h.insdshead)'
elif context == 'global':
prefix = ''
ns = '0'
prepare = ''
else:
raise 'undefined context %s' % context
if triggered:
if rate == 'i': raise 'cannot be triggered at i-rate'
t, T = 't', 'T'
else:
t, T = '', ''
ACTION = action.upper()
RATE = rate.upper()
name = 'py%(prefix)s%(action)s%(rate)s%(t)s_%(rate0)srate' % locals()
s = 'static int %(name)s(CSOUND *csound, PY%(ACTION)s%(T)s *p)\n' % locals()
s += '{\n'
s += ' char source[%d];\n' % size
s += ' PyObject *result;\n'
s += ' int *py_initialize_done;\n'
s += ' if ((py_initialize_done = csound->QueryGlobalVariable(csound,"PY_INITIALIZE")) == NULL ||\n'
s += ' *py_initialize_done == 0) {\n'
s += ' return NOTOK;\n'
s += ' }\n\n'
if triggered:
if action == 'eval':
s += ' if (!*p->trigger) {\n'
s += ' *p->result = p->oresult;\n'
s += ' return OK;\n'
s += ' }\n'
else:
s += ' if (!*p->trigger) {\n'
s += ' return OK;\n'
s += ' }\n'
if context == 'private' and rate0 == 'i':
s += ' create_private_namespace_if_needed(&p->h);\n\n'
if action == 'assign':
s += ' snprintf(source, %d, "%%s = %%f", (char*) p->string->data, *p->value);\n' % size
else:
s += " strNcpy(source, (char*) p->string->data, %d); // source[%d] = '\\0'\n\n" % (size, size-1)
if action == 'exec':
s += ' result = %(helper)s_in_given_context(csound, source, %(ns)s);\n' % locals()
else:
s += ' result = %(helper)s_in_given_context(source, %(ns)s);\n' % locals()
s += ' if (result == NULL) {\n'
s += ' return pyErrMsg(p, "python exception");\n'
s += ' }\n'
if action == 'eval':
s += ' else if (!PyFloat_Check(result)) {\n'
s += ' errMsg(p, "expression must evaluate in a float");\n'
s += ' }\n'
s += ' else {\n'
s += ' *p->result = PyFloat_AsDouble(result);\n'
if triggered:
s += ' p->oresult = *p->result;\n'
s += ' }\n'
s += ' Py_DECREF(result);\n'
s += ' return OK;\n'
s += '}\n'
print(s, file=f)
def generate_init_method(f, action, triggered):
ACTION = action.upper()
if triggered:
t, T = 't', 'T'
else:
t, T = '', ''
s = 'static int pyl%(action)s%(t)s_irate(CSOUND *csound, PY%(ACTION)s%(T)s *p)\n' % locals()
s += '{\n'
s += ' int *py_initialize_done;\n'
s += ' if((py_initialize_done = csound->QueryGlobalVariable(csound,"PY_INITIALIZE")) == NULL ||\n'
s += ' *py_initialize_done == 0) {\n'
s += ' return NOTOK;\n'
s += ' }\n'
s += ' create_private_namespace_if_needed(&p->h);\n'
s += ' return OK;\n'
s += '}\n'
print(s, file=f)
# ----------------
def generate_pycall_opcode_struct(f, action, triggered):
ACTION = action.upper()
if triggered:
T = 'T'
else:
T = ''
s = 'typedef struct {\n'
s += ' OPDS h;\n'
if action == 'eval':
s += ' MYFLT *result;\n'
if triggered:
s += ' MYFLT *trigger;\n'
s += ' STRINGDAT *string;\n'
if action == 'assign':
s += ' MYFLT *value;\n'
if action == 'eval' and triggered:
s += ' MYFLT oresult;\n'
s += '} PY%(ACTION)s%(T)s;\n' % locals()
print(s, file=f)
f = open('pyx.auto.c', 'w')
s = '''/*
* pyx.auto.c
*
* Copyright (C) 2002 Maurizio Umberto Puxeddu, Michael Gogins
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Don't modify this file, it's automatically genetated by pyx-gen.py
*/
char *strNcpy(char *dst, const char *src, size_t siz)
{
char *d = dst;
const char *s = src;
size_t n = siz;
/* Copy as many bytes as will fit or until NULL */
if (n != 0) {
while (--n != 0) {
if ((*d++ = *s++) == '\0')
break;
}
}
/* Not enough room in dst, add NUL */
if (n == 0) {
if (siz != 0)
*d = '\0'; /* NUL-terminate dst */
//while (*s++) ;
}
return dst; /* count does not include NUL */
}
'''
print(s, file=f)
for action in ['exec', 'run', 'eval', 'assign']:
generate_x_method(f, action, 'global', 'k', 0)
generate_x_method(f, action, 'global', 'i', 0)
generate_init_method(f, action, 0)
generate_x_method(f, action, 'private', 'k', 0)
generate_x_method(f, action, 'private', 'i', 0)
generate_x_method(f, action, 'global', 'k', 1)
generate_init_method(f, action, 1)
generate_x_method(f, action, 'private', 'k', 1)
f.close()
f = open('pyx.auto.h', 'w')
s = '''/*
* pyx.auto.h
*
* Copyright (C) 2002 Maurizio Umberto Puxeddu, Michael Gogins
*
* This software is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Don't modify this file. It's automatically generated by pyx-gen.py
*/
'''
print(s, file=f)
for action in ['exec', 'run', 'eval', 'assign']:
for triggered in [0, 1]:
generate_pycall_opcode_struct(f, action, triggered)
f.close()
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