From 0275a1b777bdf79a3c2aa19b678367f592070c1b Mon Sep 17 00:00:00 2001 From: Thibault Saunier Date: Tue, 9 Aug 2011 22:11:03 +0200 Subject: [PATCH] pyges: Add the GstArgtypes, get all the functions binded --- bindings/python/Makefile.am | 2 +- bindings/python/arg-types.py | 421 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 422 insertions(+), 1 deletion(-) create mode 100644 bindings/python/arg-types.py diff --git a/bindings/python/Makefile.am b/bindings/python/Makefile.am index 8d84642..1a6cbfd 100644 --- a/bindings/python/Makefile.am +++ b/bindings/python/Makefile.am @@ -33,7 +33,7 @@ CLEANFILES = ges.c .defs.c: ($(PYTHON) $(srcdir)/codegen/codegen.py \ - --load-types $(srcdir)/codegen/argtypes.py \ + --load-types $(srcdir)/arg-types.py \ --register $(srcdir)/ges-types.defs \ --override $(srcdir)/$*.override \ --prefix pyges $<) > gen-$*.c \ diff --git a/bindings/python/arg-types.py b/bindings/python/arg-types.py new file mode 100644 index 0000000..5e26ef7 --- /dev/null +++ b/bindings/python/arg-types.py @@ -0,0 +1,421 @@ +# -*- Mode: Python -*- +# vi:si:et:sw=4:sts=4:ts=4 +# +# gst-python +# Copyright (C) 2002 David I. Lehn +# 2004 Johan Dahlin +# +# This library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Library General Public +# License as published by the Free Software Foundation; either +# version 2 of the License, or (at your option) any later version. +# +# This library 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 +# Library General Public License for more details. +# +# You should have received a copy of the GNU Library General Public +# License along with this library; if not, write to the +# Free Software Foundation, Inc., 59 Temple Place - Suite 330, +# Boston, MA 02111-1307, USA. +# +# Author: David I. Lehn + +from argtypes import UInt64Arg, Int64Arg, PointerArg, ArgMatcher, ArgType, matcher +from reversewrapper import Parameter, ReturnType, GBoxedParam, GBoxedReturn, IntParam, IntReturn + +class XmlNodeArg(ArgType): + """libxml2 node generator""" + + names = {"xobj":"xmlNode", + "xptr":"xmlNodePtr", + "xwrap":"libxml_xmlNodePtrWrap"} + + parm = (' if(xml == NULL) return NULL;\n' + ' xobj = PyObject_GetAttrString(xml, "%(xobj)s");\n' + ' if(!PyObject_IsInstance(py%(name)s, xobj)) {\n' + ' PyErr_Clear();\n' + ' PyErr_SetString(PyExc_RuntimeError,"%(name)s is not a %(xobj)s instance");\n' + ' Py_DECREF(xobj);Py_DECREF(xml);\n' + ' return NULL;\n' + ' }\n' + ' o = PyObject_GetAttrString(py%(name)s, "_o");\n' + ' %(name)s = PyCObject_AsVoidPtr(o);\n') + parmp = (' Py_DECREF(o); Py_DECREF(xobj);Py_DECREF(xml);\n') + + ret = (' if(xml == NULL) return NULL;\n') + retp = (' xargs = PyTuple_New(1);\n' + ' xobj = PyObject_GetAttrString(xml, "%(xobj)s");\n' + ' o = %(xwrap)s(ret);\n' + ' PyTuple_SetItem(xargs, 0, o);\n' + ' return PyInstance_New(xobj, xargs, PyDict_New());\n') + + def write_param(self, ptype, pname, pdflt, pnull, info): + info.varlist.add('PyObject', '*xml = _gst_get_libxml2_module()') + info.varlist.add('PyObject', '*o') + info.varlist.add('PyObject', '*xobj') + info.varlist.add('PyObject', '*py' + pname) + info.varlist.add(self.names["xptr"], pname) + #if pnull: + info.add_parselist('O', ['&py'+pname], [pname]) + info.arglist.append(pname) + self.names["name"] = pname + info.codebefore.append(self.parm % self.names) + info.codeafter.append(self.parmp % self.names); + def write_return(self, ptype, ownsreturn, info): + info.varlist.add('PyObject', '*xml = _gst_get_libxml2_module()') + info.varlist.add('PyObject', '*xargs') + info.varlist.add('PyObject', '*xobj') + info.varlist.add('PyObject', '*o') + info.varlist.add(self.names["xptr"], 'ret') + info.codebefore.append(self.ret % self.names) + info.codeafter.append(self.retp % self.names) + +class XmlDocArg(XmlNodeArg): + """libxml2 doc generator""" + names = {"xobj":"xmlDoc", + "xptr":"xmlDocPtr", + "xwrap":"libxml_xmlDocPtrWrap"} + +class GstCapsArg(ArgType): + """GstCaps node generator""" + + before = (' %(name)s = pygst_caps_from_pyobject (py_%(name)s, %(namecopy)s);\n' + ' if (PyErr_Occurred())\n' + ' return NULL;\n') + beforenull = (' if (py_%(name)s == Py_None || py_%(name)s == NULL)\n' + ' %(name)s = NULL;\n' + ' else\n' + ' ' + before) + after = (' if (%(name)s && %(name)s_is_copy)\n' + ' gst_caps_unref (%(name)s);\n') + + def write_param(self, ptype, pname, pdflt, pnull, info): + if ptype == 'const-GstCaps*': + self.write_const_param(pname, pdflt, pnull, info) + elif ptype == 'GstCaps*': + self.write_normal_param(pname, pdflt, pnull, info) + else: + raise RuntimeError, "write_param not implemented for %s" % ptype + + def write_const_param(self, pname, pdflt, pnull, info): + if pdflt: + assert pdflt == 'NULL' + info.varlist.add('PyObject', '*py_' + pname + ' = NULL') + else: + info.varlist.add('PyObject', '*py_' + pname) + info.varlist.add('GstCaps', '*'+pname) + info.varlist.add('gboolean', pname+'_is_copy') + info.add_parselist('O', ['&py_'+pname], [pname]) + info.arglist.append(pname) + if pnull: + info.codebefore.append (self.beforenull % { 'name' : pname, 'namecopy' : '&'+pname+'_is_copy' }) + else: + info.codebefore.append (self.before % { 'name' : pname, 'namecopy' : '&'+pname+'_is_copy' }) + info.codeafter.append (self.after % { 'name' : pname, 'namecopy' : '&'+pname+'_is_copy' }) + + def write_normal_param(self, pname, pdflt, pnull, info): + if pdflt: + assert pdflt == 'NULL' + info.varlist.add('PyObject', '*py_' + pname + ' = NULL') + else: + info.varlist.add('PyObject', '*py_' + pname) + info.varlist.add('GstCaps', '*'+pname) + info.add_parselist('O', ['&py_'+pname], [pname]) + info.arglist.append(pname) + if pnull: + info.codebefore.append (self.beforenull % { 'name' : pname, 'namecopy' : 'NULL' }) + else: + info.codebefore.append (self.before % { 'name' : pname, 'namecopy' : 'NULL' }) + + def write_return(self, ptype, ownsreturn, info): + if ptype == 'GstCaps*': + info.varlist.add('GstCaps', '*ret') + copyval = 'FALSE' + elif ptype == 'const-GstCaps*': + info.varlist.add('const GstCaps', '*ret') + copyval = 'TRUE' + else: + raise RuntimeError, "write_return not implemented for %s" % ptype + info.codeafter.append(' return pyg_boxed_new (GST_TYPE_CAPS, (GstCaps*) ret, '+copyval+', TRUE);') + +class GstIteratorArg(ArgType): + def write_return(self, ptype, ownsreturn, info): + info.varlist.add('GstIterator', '*ret') + info.codeafter.append(' return pygst_iterator_new(ret);') + +class GstMiniObjectArg(ArgType): + + before = (' %(name)s = %(macro)s(pygstminiobject_get (py_%(name)s));\n' + ' if (PyErr_Occurred())\n' + ' return NULL;\n') + + def write_param(self, ptype, pname, pdflt, pnull, info): + if pdflt: + assert pdflt == 'NULL' + info.varlist.add('PyObject', '*py_' + pname + ' = NULL') + else: + info.varlist.add('PyObject', '*py_' + pname) + + #Converts 'GstBuffer*' to 'GstBuffer' + #and const-GstBuffer* to 'const GstBuffer' + info.varlist.add(ptype.replace('-',' ').replace('*',''), '*'+pname) + + if ptype in ['GstBuffer*', 'const-GstBuffer*']: + info.codebefore.append(self.before % { 'name' : pname, 'macro' : 'GST_BUFFER' }) + + elif ptype in ['GstEncodingProfile*', 'const-GstEncodingProfile*']: + info.codebefore.append(self.before % { 'name' : pname, 'macro' : 'GST_ENCODING_PROFILE' }) + + elif ptype in ['GstMessage*', 'const-GstMessage*']: + info.codebefore.append(self.before % { 'name' : pname, 'macro' : 'GST_MESSAGE' }) + + elif ptype in ['GstEvent*', 'const-GstEvent*']: + info.codebefore.append(self.before % { 'name' : pname, 'macro' : 'GST_EVENT' }) + + elif ptype in ['GstQuery*', 'const-GstQuery*']: + info.codebefore.append(self.before % { 'name' : pname, 'macro' : 'GST_QUERY' }) + + else: + raise RuntimeError, "write_param not implemented for %s" % ptype + + info.add_parselist('O', ['&py_'+pname], [pname]) + info.arglist.append(pname) + + def write_return(self, ptype, ownsreturn, info): + info.varlist.add(ptype, 'ret') + info.codeafter.append(' return pygstminiobject_new((GstMiniObject *) ret);') + +class GstMiniObjectParam(Parameter): + + def get_c_type(self): + return self.props.get('c_type', 'GstMiniObject *') + + def convert_c2py(self): + self.wrapper.add_declaration("PyObject *py_%s = NULL;" % self.name) + self.wrapper.write_code(code=("if (%s) {\n" + " py_%s = pygstminiobject_new((GstMiniObject *) %s);\n" + " gst_mini_object_unref ((GstMiniObject *) %s);\n" + "} else {\n" + " Py_INCREF(Py_None);\n" + " py_%s = Py_None;\n" + "}" + % (self.name, self.name, self.name, self.name, self.name)), + cleanup=("gst_mini_object_ref ((GstMiniObject *) %s); Py_DECREF(py_%s);" % (self.name, self.name))) + self.wrapper.add_pyargv_item("py_%s" % self.name) + +matcher.register_reverse('GstMiniObject*', GstMiniObjectParam) + +class GstMiniObjectReturn(ReturnType): + + def get_c_type(self): + return self.props.get('c_type', 'GstMiniObject *') + + def write_decl(self): + self.wrapper.add_declaration("%s retval;" % self.get_c_type()) + + def write_error_return(self): + self.wrapper.write_code("return NULL;") + + def write_conversion(self): + self.wrapper.write_code("retval = (%s) pygstminiobject_get(py_retval);" + % self.get_c_type()) + self.wrapper.write_code("gst_mini_object_ref((GstMiniObject *) retval);") + +matcher.register_reverse_ret('GstMiniObject*', GstMiniObjectReturn) + +class GstCapsParam(Parameter): + + def get_c_type(self): + return self.props.get('c_type', 'GstCaps *') + + def convert_c2py(self): + self.wrapper.add_declaration("PyObject *py_%s = NULL;" % self.name) + self.wrapper.write_code(code=("if (%s)\n" + " py_%s = pyg_boxed_new (GST_TYPE_CAPS, %s, FALSE, TRUE);\n" + "else {\n" + " Py_INCREF(Py_None);\n" + " py_%s = Py_None;\n" + "}" + % (self.name, self.name, self.name, self.name)), + cleanup=("gst_caps_ref(%s);\nPy_DECREF(py_%s);" % (self.name, self.name))) + self.wrapper.add_pyargv_item("py_%s" % self.name) + +matcher.register_reverse('GstCaps*', GstCapsParam) + +class GstCapsReturn(ReturnType): + + def get_c_type(self): + return self.props.get('c_type', 'GstCaps *') + + def write_decl(self): + self.wrapper.add_declaration("%s retval;" % self.get_c_type()) + + def write_error_return(self): + self.wrapper.write_code("return NULL;") + + def write_conversion(self): + self.wrapper.write_code("retval = (%s) pygst_caps_from_pyobject (py_retval, NULL);" + % self.get_c_type()) +## self.wrapper.write_code("gst_mini_object_ref((GstMiniObject *) retval);") + +matcher.register_reverse_ret('GstCaps*', GstCapsReturn) + + +class Int64Param(Parameter): + + def get_c_type(self): + return self.props.get('c_type', 'gint64') + + def convert_c2py(self): + self.wrapper.add_declaration("PyObject *py_%s;" % self.name) + self.wrapper.write_code(code=("py_%s = PyLong_FromLongLong(%s);" % + (self.name, self.name)), + cleanup=("Py_DECREF(py_%s);" % self.name)) + self.wrapper.add_pyargv_item("py_%s" % self.name) + +class Int64Return(ReturnType): + def get_c_type(self): + return self.props.get('c_type', 'gint64') + def write_decl(self): + self.wrapper.add_declaration("%s retval;" % self.get_c_type()) + def write_error_return(self): + self.wrapper.write_code("return -G_MAXINT;") + def write_conversion(self): + self.wrapper.write_code( + code=None, + failure_expression="!PyLong_Check(py_retval)", + failure_cleanup='PyErr_SetString(PyExc_TypeError, "retval should be an long");') + self.wrapper.write_code("retval = PyLong_AsLongLong(py_retval);") + +class UInt64Param(Parameter): + + def get_c_type(self): + return self.props.get('c_type', 'guint64') + + def convert_c2py(self): + self.wrapper.add_declaration("PyObject *py_%s;" % self.name) + self.wrapper.write_code(code=("py_%s = PyLong_FromUnsignedLongLong(%s);" % + (self.name, self.name)), + cleanup=("Py_DECREF(py_%s);" % self.name)) + self.wrapper.add_pyargv_item("py_%s" % self.name) + +class UInt64Return(ReturnType): + def get_c_type(self): + return self.props.get('c_type', 'guint64') + def write_decl(self): + self.wrapper.add_declaration("%s retval;" % self.get_c_type()) + def write_error_return(self): + self.wrapper.write_code("return -G_MAXINT;") + def write_conversion(self): + self.wrapper.write_code( + code=None, + failure_expression="!PyLong_Check(py_retval)", + failure_cleanup='PyErr_SetString(PyExc_TypeError, "retval should be an long");') + self.wrapper.write_code("retval = PyLong_AsUnsignedLongLongMask(py_retval);") + +class ULongParam(Parameter): + + def get_c_type(self): + return self.props.get('c_type', 'gulong') + + def convert_c2py(self): + self.wrapper.add_declaration("PyObject *py_%s;" % self.name) + self.wrapper.write_code(code=("py_%s = PyLong_FromUnsignedLong(%s);" % + (self.name, self.name)), + cleanup=("Py_DECREF(py_%s);" % self.name)) + self.wrapper.add_pyargv_item("py_%s" % self.name) + +class ULongReturn(ReturnType): + def get_c_type(self): + return self.props.get('c_type', 'gulong') + def write_decl(self): + self.wrapper.add_declaration("%s retval;" % self.get_c_type()) + def write_error_return(self): + self.wrapper.write_code("return -G_MAXINT;") + def write_conversion(self): + self.wrapper.write_code( + code=None, + failure_expression="!PyLong_Check(py_retval)", + failure_cleanup='PyErr_SetString(PyExc_TypeError, "retval should be an long");') + self.wrapper.write_code("retval = PyLong_AsUnsignedLongMask(py_retval);") + +class ConstStringReturn(ReturnType): + + def get_c_type(self): + return "const gchar *" + + def write_decl(self): + self.wrapper.add_declaration("const gchar *retval;") + + def write_error_return(self): + self.wrapper.write_code("return NULL;") + + def write_conversion(self): + self.wrapper.write_code( + code=None, + failure_expression="!PyString_Check(py_retval)", + failure_cleanup='PyErr_SetString(PyExc_TypeError, "retval should be a string");') + self.wrapper.write_code("retval = g_strdup(PyString_AsString(py_retval));") + +class StringArrayArg(ArgType): + """Arg type for NULL-terminated string pointer arrays (GStrv, aka gchar**).""" + def write_return(self, ptype, ownsreturn, info): + if ownsreturn: + raise NotImplementedError () + else: + info.varlist.add("gchar", "**ret") + info.codeafter.append(" if (ret) {\n" + " guint size = g_strv_length(ret);\n" + " PyObject *py_ret = PyTuple_New(size);\n" + " gint i;\n" + " for (i = 0; i < size; i++)\n" + " PyTuple_SetItem(py_ret, i,\n" + " PyString_FromString(ret[i]));\n" + " return py_ret;\n" + " }\n" + " return PyTuple_New (0);\n") + + +matcher.register('GstClockTime', UInt64Arg()) +matcher.register('GstElementFactoryListType', UInt64Arg()) +matcher.register('GstClockTimeDiff', Int64Arg()) +matcher.register('xmlNodePtr', XmlNodeArg()) +matcher.register('xmlDocPtr', XmlDocArg()) +matcher.register('GstCaps', GstCapsArg()) #FIXME: does this work? +matcher.register('GstCaps*', GstCapsArg()) #FIXME: does this work? +matcher.register('const-GstCaps*', GstCapsArg()) +matcher.register('GstIterator*', GstIteratorArg()) + +arg = PointerArg('gpointer', 'G_TYPE_POINTER') +matcher.register('GstClockID', arg) + +for typename in ["GstPlugin", "GstStructure", "GstTagList", "GError", "GstDate", "GstSegment"]: + matcher.register_reverse(typename, GBoxedParam) + matcher.register_reverse_ret(typename, GBoxedReturn) + +for typename in ["GstEncodingProfile*", "cons-GstEncodingProfile", "GstBuffer*", "const-GstBuffer*", "GstEvent*", "const-GstEvent*", "GstMessage*", "const-GstMessage*", "GstQuery*", "const-GstQuery*"]: + matcher.register(typename, GstMiniObjectArg()) + matcher.register_reverse(typename, GstMiniObjectParam) + matcher.register_reverse_ret(typename, GstMiniObjectReturn) + +for typename in ["gint64", "GstClockTimeDiff"]: + matcher.register_reverse(typename, Int64Param) + matcher.register_reverse_ret(typename, Int64Return) + +for typename in ["guint64", "GstClockTime", "GstElementFactoryListType"]: + matcher.register_reverse(typename, UInt64Param) + matcher.register_reverse_ret(typename, UInt64Return) + +matcher.register_reverse_ret("const-gchar*", ConstStringReturn) + +matcher.register_reverse("GType", IntParam) +matcher.register_reverse_ret("GType", IntReturn) + +matcher.register_reverse("gulong", ULongParam) +matcher.register_reverse_ret("gulong", ULongReturn) + +matcher.register("GStrv", StringArrayArg()) + +del arg -- 2.7.4