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codegen/: Updated codegen to support miniobject

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Original commit message from CVS:
* codegen/argtypes.py:
* codegen/codegen.py:
* codegen/definitions.py:
* codegen/defsparser.py:
* codegen/docgen.py:
Updated codegen to support miniobject
* gst/Makefile.am:
Use the included (and modified) codegen for code generation.
* gst/pygstminiobject.c:
* gst/pygstminiobject.h:
* gst/pygstminiobject-private.h:
New GstMiniObject inspired from pygobject.[ch] code
* gst/common.h:
* gst/gst-types.defs:
* gst/gst.override:
* gst/gstbuffer.override:
* gst/gstcaps.override:
* gst/gstmodule.c:
* gst/gstpad.override:
Modifications to support MiniObject
* gst/gst.defs:
Allow null second parameter for ElementFactory.create()
and gst.element_factory_make()
This commit is contained in:
Edward Hervey 2005-06-26 12:35:07 +00:00
parent 78143798a7
commit 038f11fafb
18 changed files with 935 additions and 62 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

30
ChangeLog
View file

@ -1,3 +1,33 @@
2005-06-26 Edward Hervey <edward@fluendo.com>
* codegen/argtypes.py:
* codegen/codegen.py:
* codegen/definitions.py:
* codegen/defsparser.py:
* codegen/docgen.py:
Updated codegen to support miniobject
* gst/Makefile.am:
Use the included (and modified) codegen for code generation.
* gst/pygstminiobject.c:
* gst/pygstminiobject.h:
* gst/pygstminiobject-private.h:
New GstMiniObject inspired from pygobject.[ch] code
* gst/common.h:
* gst/gst-types.defs:
* gst/gst.override:
* gst/gstbuffer.override:
* gst/gstcaps.override:
* gst/gstmodule.c:
* gst/gstpad.override:
Modifications to support MiniObject
* gst/gst.defs:
Allow null second parameter for ElementFactory.create()
and gst.element_factory_make()
2005-06-20 Edward Hervey <edward@fluendo.com>
* gst/arg-types.py:

69
codegen/argtypes.py
View file

@ -423,6 +423,71 @@ class ObjectArg(ArgType):
info.codeafter.append(' /* pygobject_new handles NULL checking */\n' +
' return pygobject_new((GObject *)ret);')
class MiniObjectArg(ArgType):
# should change these checks to more typesafe versions that check
# a little further down in the class heirachy.
nulldflt = (' if ((PyObject *)py_%(name)s == Py_None)\n'
' %(name)s = NULL;\n'
' else if (py_%(name)s) && pygstminiobject_check(py_%(name)s, &Py%(type)s_Type))\n'
' %(name)s = %(cast)s(py_%(name)s->obj);\n'
' else if (py_%(name)s) {\n'
' PyErr_SetString(PyExc_TypeError, "%(name)s should be a %(type)s or None");\n'
' return NULL;\n'
' }\n')
null = (' if (py_%(name)s && pygstminiobject_check(py_%(name)s, &Py%(type)s_Type))\n'
' %(name)s = %(cast)s(py_%(name)s->obj);\n'
' else if ((PyObject *)py_%(name)s != Py_None) {\n'
' PyErr_SetString(PyExc_TypeError, "%(name)s should be a %(type)s or None");\n'
' return NULL;\n'
' }\n')
dflt = ' if (py_%(name)s)\n' \
' %(name)s = %(cast)s(py_%(name)s->obj);\n'
def __init__(self, objname, parent, typecode):
self.objname = objname
self.cast = string.replace(typecode, '_TYPE_', '_', 1)
self.parent = parent
def write_param(self, ptype, pname, pdflt, pnull, info):
if pnull:
if pdflt:
info.varlist.add(self.objname, '*' + pname + ' = ' + pdflt)
info.varlist.add('PyGstMiniObject', '*py_' + pname + ' = NULL')
info.codebefore.append(self.nulldflt % {'name':pname,
'cast':self.cast,
'type':self.objname})
else:
info.varlist.add(self.objname, '*' + pname + ' = NULL')
info.varlist.add('PyGstMiniObject', '*py_' + pname)
info.codebefore.append(self.null % {'name':pname,
'cast':self.cast,
'type':self.objname})
info.arglist.append(pname)
info.add_parselist('O', ['&py_' + pname], [pname])
else:
if pdflt:
info.varlist.add(self.objname, '*' + pname + ' = ' + pdflt)
info.varlist.add('PyGstMiniObject', '*py_' + pname + ' = NULL')
info.codebefore.append(self.dflt % {'name':pname,
'cast':self.cast})
info.arglist.append(pname)
info.add_parselist('O', ['&Py%s_Type' % self.objname,
'&py_' + pname], [pname])
else:
info.varlist.add('PyGstMiniObject', '*' + pname)
info.arglist.append('%s(%s->obj)' % (self.cast, pname))
info.add_parselist('O!', ['&Py%s_Type' % self.objname,
'&' + pname], [pname])
def write_return(self, ptype, ownsreturn, info):
if ptype[-1] == '*': ptype = ptype[:-1]
info.varlist.add(ptype, '*ret')
if ownsreturn:
info.varlist.add('PyObject', '*py_ret')
info.codeafter.append(' py_ret = pygstminiobject_new((GstMiniObject *)ret);\n'
' gst_mini_object_unref(ret);\n'
' return py_ret;')
else:
info.codeafter.append(' /* pygobject_new handles NULL checking */\n' +
' return pygstminiobject_new((GstMiniObject *)ret);')
class BoxedArg(ArgType):
# haven't done support for default args. Is it needed?
check = (' if (pyg_boxed_check(py_%(name)s, %(typecode)s))\n'
@ -715,6 +780,9 @@ class ArgMatcher:
# hack to handle GdkBitmap synonym.
self.register('GdkBitmap', oa)
self.register('GdkBitmap*', oa)
def register_miniobject(self, ptype, parent, typecode):
oa = MiniObjectArg(ptype, parent, typecode)
self.register(ptype+'*', oa)
def register_boxed(self, ptype, typecode):
if self.argtypes.has_key(ptype): return
arg = BoxedArg(ptype, typecode)
@ -841,5 +909,6 @@ matcher.register('PyObject*', PyObjectArg())
matcher.register('GdkNativeWindow', ULongArg())
matcher.register_object('GObject', None, 'G_TYPE_OBJECT')
matcher.register_miniobject('GstMiniObject', None, 'GST_TYPE_MINI_OBJECT')
del arg

82
codegen/codegen.py
View file

@ -543,6 +543,65 @@ class GObjectWrapper(Wrapper):
substdict['cast'] = string.replace(self.objinfo.typecode, '_TYPE_', '_', 1)
return substdict
## TODO : Add GstMiniObjectWrapper(Wrapper)
class GstMiniObjectWrapper(Wrapper):
constructor_tmpl = \
'static int\n' \
'_wrap_%(cname)s(PyGstMiniObject *self%(extraparams)s)\n' \
'{\n' \
'%(varlist)s' \
'%(parseargs)s' \
'%(codebefore)s' \
' self->obj = (GstMiniObject *)%(cname)s(%(arglist)s);\n' \
'%(codeafter)s\n' \
' if (!self->obj) {\n' \
' PyErr_SetString(PyExc_RuntimeError, "could not create %(typename)s miniobject");\n' \
' return -1;\n' \
' }\n' \
'%(aftercreate)s' \
' return 0;\n' \
'}\n\n'
method_tmpl = \
'static PyObject *\n' \
'_wrap_%(cname)s(PyGstMiniObject *self%(extraparams)s)\n' \
'{\n' \
'%(varlist)s' \
'%(parseargs)s' \
'%(codebefore)s' \
' %(setreturn)s%(cname)s(%(cast)s(self->obj)%(arglist)s);\n' \
'%(codeafter)s\n' \
'}\n\n'
def __init__(self, parser, objinfo, overrides, fp=FileOutput(sys.stdout)):
Wrapper.__init__(self, parser, objinfo, overrides, fp)
if self.objinfo:
self.castmacro = string.replace(self.objinfo.typecode,
'_TYPE_', '_', 1)
def get_initial_class_substdict(self):
return { 'tp_basicsize' : 'PyGstMiniObject',
'tp_weaklistoffset' : 'offsetof(PyGstMiniObject, weakreflist)',
'tp_dictoffset' : 'offsetof(PyGstMiniObject, inst_dict)' }
def get_field_accessor(self, fieldname):
castmacro = string.replace(self.objinfo.typecode, '_TYPE_', '_', 1)
return '%s(pygstminiobject_get(self))->%s' % (castmacro, fieldname)
def get_initial_constructor_substdict(self, constructor):
substdict = Wrapper.get_initial_constructor_substdict(self, constructor)
if not constructor.caller_owns_return:
substdict['aftercreate'] = " g_object_ref(self->obj);\n"
else:
substdict['aftercreate'] = ''
return substdict
def get_initial_method_substdict(self, method):
substdict = Wrapper.get_initial_method_substdict(self, method)
substdict['cast'] = string.replace(self.objinfo.typecode, '_TYPE_', '_', 1)
return substdict
class GInterfaceWrapper(GObjectWrapper):
def get_initial_class_substdict(self):
return { 'tp_basicsize' : 'PyObject',
@ -663,6 +722,8 @@ def write_type_declarations(parser, fp):
fp.write('PyTypeObject Py' + obj.c_name + '_Type;\n')
for obj in parser.objects:
fp.write('PyTypeObject Py' + obj.c_name + '_Type;\n')
for obj in parser.miniobjects:
fp.write('PyTypeObject Py' + obj.c_name + '_Type;\n')
for interface in parser.interfaces:
fp.write('PyTypeObject Py' + interface.c_name + '_Type;\n')
fp.write('\n')
@ -671,6 +732,7 @@ def write_classes(parser, overrides, fp):
for klass, items in ((GBoxedWrapper, parser.boxes),
(GPointerWrapper, parser.pointers),
(GObjectWrapper, parser.objects),
(GstMiniObjectWrapper, parser.miniobjects),
(GInterfaceWrapper, parser.interfaces)):
for item in items:
instance = klass(parser, item, overrides, fp)
@ -763,6 +825,24 @@ def write_registers(parser, fp):
fp.write(' pygobject_register_class(d, "' + obj.c_name +
'", ' + obj.typecode + ', &Py' + obj.c_name +
'_Type, NULL);\n')
#TODO: register mini-objects
miniobjects = parser.miniobjects[:]
for obj in miniobjects:
bases = []
if obj.parent != None:
bases.append(obj.parent)
bases = bases + obj.implements
if bases:
fp.write(' pygstminiobject_register_class(d, "' + obj.c_name +
'", ' + obj.typecode + ', &Py' + obj.c_name +
'_Type, Py_BuildValue("(' + 'O' * len(bases) + ')", ' +
string.join(map(lambda s: '&Py'+s+'_Type', bases), ', ') +
'));\n')
else:
fp.write(' pygstminiobject_register_class(d, "' + obj.c_name +
'", ' + obj.typecode + ', &Py' + obj.c_name +
'_Type, NULL);\n')
fp.write('}\n')
def write_source(parser, overrides, prefix, fp=FileOutput(sys.stdout)):
@ -785,6 +865,8 @@ def register_types(parser):
argtypes.matcher.register_pointer(pointer.c_name, pointer.typecode)
for obj in parser.objects:
argtypes.matcher.register_object(obj.c_name, obj.parent, obj.typecode)
for obj in parser.miniobjects:
argtypes.matcher.register_miniobject(obj.c_name, obj.parent, obj.typecode)
for obj in parser.interfaces:
argtypes.matcher.register_object(obj.c_name, None, obj.typecode)
for enum in parser.enums:

51
codegen/definitions.py
View file

@ -63,6 +63,57 @@ class ObjectDef(Definition):
fp.write(' )\n')
fp.write(')\n\n')
class MiniObjectDef(Definition):
def __init__(self, name, *args):
self.name = name
self.module = None
self.parent = None
self.c_name = None
self.typecode = None
self.fields = []
self.implements = []
for arg in args:
if type(arg) != type(()) or len(arg) < 2:
continue
if arg[0] == 'in-module':
self.module = arg[1]
elif arg[0] == 'parent':
self.parent = arg[1]
elif arg[0] == 'c-name':
self.c_name = arg[1]
elif arg[0] == 'gtype-id':
self.typecode = arg[1]
elif arg[0] == 'fields':
for parg in arg[1:]:
self.fields.append((parg[0], parg[1]))
elif arg[0] == 'implements':
self.implements.append(arg[1])
def merge(self, old):
# currently the .h parser doesn't try to work out what fields of
# an object structure should be public, so we just copy the list
# from the old version ...
self.fields = old.fields
self.implements = old.implements
def write_defs(self, fp=sys.stdout):
fp.write('(define-object ' + self.name + '\n')
if self.module:
fp.write(' (in-module "' + self.module + '")\n')
if self.parent != (None, None):
fp.write(' (parent "' + self.parent + '")\n')
for interface in self.implements:
fp.write(' (implements "' + interface + '")\n')
if self.c_name:
fp.write(' (c-name "' + self.c_name + '")\n')
if self.typecode:
fp.write(' (gtype-id "' + self.typecode + '")\n')
if self.fields:
fp.write(' (fields\n')
for (ftype, fname) in self.fields:
fp.write(' \'("' + ftype + '" "' + fname + '")\n')
fp.write(' )\n')
fp.write(')\n\n')
class InterfaceDef(Definition):
def __init__(self, name, *args):
self.name = name

9
codegen/defsparser.py
View file

@ -19,6 +19,7 @@ class DefsParser(IncludeParser):
def __init__(self, arg, defines={}):
IncludeParser.__init__(self, arg)
self.objects = []
self.miniobjects = []
self.interfaces = []
self.enums = [] # enums and flags
self.boxes = [] # boxed types
@ -32,6 +33,11 @@ class DefsParser(IncludeParser):
odef = apply(ObjectDef, args)
self.objects.append(odef)
self.c_name[odef.c_name] = odef
# TODO: define_mini_object
def define_miniobject(self, *args):
odef = apply(MiniObjectDef, args)
self.miniobjects.append(odef)
self.c_name[odef.c_name] = odef
def define_interface(self, *args):
idef = apply(InterfaceDef, args)
self.interfaces.append(idef)
@ -78,6 +84,9 @@ class DefsParser(IncludeParser):
def write_defs(self, fp=sys.stdout):
for obj in self.objects:
obj.write_defs(fp)
# TODO: Add miniobject
for obj in self.miniobjects:
obj.write_defs(fp)
for enum in self.enums:
enum.write_defs(fp)
for boxed in self.boxes:

2
codegen/docgen.py
View file

@ -37,6 +37,8 @@ def build_object_tree(parser):
parent_node.add_child(node)
nodes[node.name] = node
# TODO: Add mini-object
if parser.interfaces:
interfaces = Node('gobject.GInterface')
root.add_child(interfaces)

6
gst/Makefile.am
View file

@ -26,7 +26,7 @@ defs_DATA = gst-types.defs \
gst-extrafuncs.defs
defsdir = $(pkgdatadir)/2.0/defs
noinst_HEADERS = common.h pygstvalue.h
noinst_HEADERS = common.h pygstvalue.h pygstminiobject.h
INCLUDES = $(PYTHON_INCLUDES)
EXTRA_DIST = $(defs_DATA) common.h arg-types.py
@ -37,7 +37,7 @@ GEN_FILES = arg-types.py gst-types.defs
_gst_la_CFLAGS = $(common_cflags)
_gst_la_LIBADD = $(common_libadd)
_gst_la_LDFLAGS = $(common_ldflags) -export-symbols-regex init_gst
_gst_la_SOURCES = gst-argtypes.c gstmodule.c pygstvalue.c
_gst_la_SOURCES = gst-argtypes.c gstmodule.c pygstvalue.c pygstminiobject.c
nodist__gst_la_SOURCES = gst.c
GST_OVERRIDES = \
gst.override \
@ -80,7 +80,7 @@ interfaces.c: $(INTERFACES_DEFS) $(INTERFACES_OVERRIDES) $(GEN_FILES)
.defs.c:
(cd $(srcdir) \
&& $(PYGTK_CODEGEN) \
&& python $(top_srcdir)/codegen/codegen.py \
--load-types $(srcdir)/arg-types.py \
--register $(srcdir)/gst-types.defs \
--override $*.override \

15
gst/common.h
View file

@ -23,21 +23,24 @@
#define __COMMON_H__
#include <Python.h>
#include <glib.h>
#include <glib-object.h>
#include <gst/gst.h>
#include "pygobject.h"
#include "pygstminiobject.h"
#if (defined HAVE_OLD_PYGTK && (PY_VERSION_HEX < 0x02030000))
typedef destructor freefunc;
#endif
typedef struct {
PyGObject *pad;
GClosure *link_function;
GClosure *event_function;
GClosure *chain_function;
GClosure *get_function;
GClosure *getcaps_function;
PyGObject *pad;
GClosure *link_function;
GClosure *event_function;
GClosure *chain_function;
GClosure *get_function;
GClosure *getcaps_function;
} PyGstPadPrivate;
typedef struct {

14
gst/gst-types.defs
View file

@ -146,34 +146,28 @@
;; MiniObject types
;;
(define-boxed MiniObject
(in-module "Gst")
(c-name "GstMiniObject")
(gtype-id "GST_TYPE_MINI_OBJECT")
)
(define-object Buffer
(define-miniobject Buffer
(in-module "Gst")
(parent "GstMiniObject")
(c-name "GstBuffer")
(gtype-id "GST_TYPE_BUFFER")
)
(define-object Event
(define-miniobject Event
(in-module "Gst")
(parent "GstMiniObject")
(c-name "GstEvent")
(gtype-id "GST_TYPE_EVENT")
)
(define-object Message
(define-miniobject Message
(in-module "Gst")
(parent "GstMiniObject")
(c-name "GstMessage")
(gtype-id "GST_TYPE_MESSAGE")
)
(define-object Query
(define-miniobject Query
(in-module "Gst")
(parent "GstMiniObject")
(c-name "GstQuery")

4
gst/gst.defs
View file

@ -1231,7 +1231,7 @@
(c-name "gst_element_factory_create")
(return-type "GstElement*")
(parameters
'("const-gchar*" "name")
'("const-gchar*" "name" (null-ok) (default "NULL"))
)
)
@ -1240,7 +1240,7 @@
(return-type "GstElement*")
(parameters
'("const-gchar*" "factoryname")
'("const-gchar*" "name")
'("const-gchar*" "name" (null-ok) (default "NULL"))
)
)

1
gst/gst.override
View file

@ -41,6 +41,7 @@ headers
#include <gst/gstprobe.h>
#include "pygstvalue.h"
#include "pygstminiobject.h"
/* These headers have been included directly to get around multiple
* GetAttrString calls */

34
gst/gstbuffer.override
View file

@ -23,15 +23,15 @@
%%
headers
static int gst_buffer_getreadbuffer (PyGObject *self,
static int gst_buffer_getreadbuffer (PyGstMiniObject *self,
int index,
const void **ptr);
static int gst_buffer_getwritebuf (PyGObject *self,
static int gst_buffer_getwritebuf (PyGstMiniObject *self,
int index,
const void **ptr);
static int gst_buffer_getsegcount (PyGObject *self,
static int gst_buffer_getsegcount (PyGstMiniObject *self,
int *lenp);
static int gst_buffer_getcharbuf (PyGObject *self,
static int gst_buffer_getcharbuf (PyGstMiniObject *self,
int index,
const char **ptr);
%%
@ -120,49 +120,49 @@ _wrap_gst_buffer_set_data(PyObject *self, PyObject *args, PyObject *kwargs)
%%
override-attr GstBuffer.data_type
static PyObject*
_wrap_gst_buffer__get_data_type(PyGObject *self, void *closure)
_wrap_gst_buffer__get_data_type(PyGstMiniObject *self, void *closure)
{
return pyg_type_wrapper_new(GST_DATA_TYPE(self->obj));
}
%%
override-attr GstBuffer.flags
static PyObject*
_wrap_gst_buffer__get_flags(PyGObject *self, void *closure)
_wrap_gst_buffer__get_flags(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_DATA_FLAGS(self->obj));
}
%%
override-attr GstBuffer.size
static PyObject *
_wrap_gst_buffer__get_size(PyGObject *self, void *closure)
_wrap_gst_buffer__get_size(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_SIZE(self->obj));
}
%%
override-attr GstBuffer.maxsize
static PyObject *
_wrap_gst_buffer__get_maxsize(PyGObject *self, void *closure)
_wrap_gst_buffer__get_maxsize(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_MAXSIZE(self->obj));
}
%%
override-attr GstBuffer.offset
static PyObject *
_wrap_gst_buffer__get_offset(PyGObject *self, void *closure)
_wrap_gst_buffer__get_offset(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_OFFSET(self->obj));
}
%%
override-attr GstBuffer.offset_end
static PyObject *
_wrap_gst_buffer__get_offset_end(PyGObject *self, void *closure)
_wrap_gst_buffer__get_offset_end(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_OFFSET_END(self->obj));
}
%%
override-attr GstBuffer.timestamp
static PyObject *
_wrap_gst_buffer__get_timestamp(PyGObject *self, void *closure)
_wrap_gst_buffer__get_timestamp(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER(self->obj)->timestamp);
}
@ -181,7 +181,7 @@ _wrap_gst_buffer__set_timestamp(PyGBoxed *self, PyObject *value, void *closure)
%%
override-attr GstBuffer.duration
static PyObject *
_wrap_gst_buffer__get_duration(PyGObject *self, void *closure)
_wrap_gst_buffer__get_duration(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER(self->obj)->duration);
}
@ -200,7 +200,7 @@ _wrap_gst_buffer__set_duration(PyGBoxed *self, PyObject *value, void *closure)
%%
override-slot GstBuffer.tp_str
static PyObject *
_wrap_gst_buffer_tp_str(PyGObject *self)
_wrap_gst_buffer_tp_str(PyGstMiniObject *self)
{
GstBuffer *buf = pyg_boxed_get(self, GstBuffer);
@ -217,7 +217,7 @@ static PyBufferProcs _wrap_gst_buffer_tp_as_buffer = {
};
static int
gst_buffer_getreadbuffer(PyGObject *self, int index, const void **ptr)
gst_buffer_getreadbuffer(PyGstMiniObject *self, int index, const void **ptr)
{
GstBuffer *buf = pyg_boxed_get(self, GstBuffer);
@ -232,7 +232,7 @@ gst_buffer_getreadbuffer(PyGObject *self, int index, const void **ptr)
}
static int
gst_buffer_getsegcount(PyGObject *self, int *lenp)
gst_buffer_getsegcount(PyGstMiniObject *self, int *lenp)
{
GstBuffer *buf = pyg_boxed_get(self, GstBuffer);
@ -242,13 +242,13 @@ gst_buffer_getsegcount(PyGObject *self, int *lenp)
}
static int
gst_buffer_getcharbuf(PyGObject *self, int index, const char **ptr)
gst_buffer_getcharbuf(PyGstMiniObject *self, int index, const char **ptr)
{
return gst_buffer_getreadbuffer (self, index, (const void **) ptr);
}
static int
gst_buffer_getwritebuf(PyGObject *self, int index, const void **ptr)
gst_buffer_getwritebuf(PyGstMiniObject *self, int index, const void **ptr)
{
GstBuffer *buf = pyg_boxed_get(self, GstBuffer);

44
gst/gstcaps.override
View file

@ -40,32 +40,32 @@ pygst_caps_map_add (PyObject *structure, PyObject *caps)
g_hash_table_insert (structure_caps_map, structure, caps);
}
static void
pygst_caps_map_remove_structure (PyObject *structure)
{
g_hash_table_remove (structure_caps_map, structure);
}
/* static void */
/* pygst_caps_map_remove_structure (PyObject *structure) */
/* { */
/* g_hash_table_remove (structure_caps_map, structure); */
/* } */
static gboolean
pygst_caps_map_foreach (gpointer structure, gpointer caps, gpointer match)
{
PyGBoxed *boxed = structure;
/* static gboolean */
/* pygst_caps_map_foreach (gpointer structure, gpointer caps, gpointer match) */
/* { */
/* PyGBoxed *boxed = structure; */
if (match != caps)
return FALSE;
/* if (match != caps) */
/* return FALSE; */
/* we can't have free_on_dealloc stuff in here */
g_assert (boxed->free_on_dealloc == FALSE);
boxed->boxed = gst_structure_copy (boxed->boxed);
boxed->free_on_dealloc = TRUE;
return TRUE;
}
/* /\* we can't have free_on_dealloc stuff in here *\/ */
/* g_assert (boxed->free_on_dealloc == FALSE); */
/* boxed->boxed = gst_structure_copy (boxed->boxed); */
/* boxed->free_on_dealloc = TRUE; */
/* return TRUE; */
/* } */
static void
pygst_caps_map_modified (PyObject *caps)
{
g_hash_table_foreach_remove (structure_caps_map, pygst_caps_map_foreach, caps);
}
/* static void */
/* pygst_caps_map_modified (PyObject *caps) */
/* { */
/* g_hash_table_foreach_remove (structure_caps_map, pygst_caps_map_foreach, caps); */
/* } */
%%
init

1
gst/gstmodule.c
View file

@ -143,6 +143,7 @@ init_gst (void)
NULL);
PyDict_SetItemString(d, "LinkError", PyGstExc_LinkError);
pygst_register_classes (d);
pygst_add_constants (m, "GST_");

4
gst/gstpad.override
View file

@ -411,7 +411,7 @@ _wrap_gst_pad_link(PyGObject *self, PyObject *args, PyObject *kwargs)
&PyGstPad_Type, &sinkpad))
return NULL;
ret = gst_pad_link(GST_PAD(self->obj), GST_PAD(sinkpad->obj));
if (!ret) {
if (ret) {
PyErr_SetString(PyGstExc_LinkError, "link failed");
return NULL;
}
@ -442,7 +442,7 @@ _wrap_gst_pad_link_filtered(PyGObject *self, PyObject *args, PyObject *kwargs)
ret = gst_pad_link_filtered(GST_PAD(self->obj),
GST_PAD(sinkpad->obj),
filtercaps);
if (!ret) {
if (ret) {
PyErr_SetString(PyGstExc_LinkError, "link failed");
return NULL;
}

169
gst/pygstminiobject-private.h Normal file
View file

@ -0,0 +1,169 @@
#ifndef _PYGOBJECT_PRIVATE_H_
#define _PYGOBJECT_PRIVATE_H_
#ifdef _PYGOBJECT_H_
# error "include pygobject.h or pygobject-private.h, but not both"
#endif
#define _INSIDE_PYGOBJECT_
#include "pygobject.h"
/* from gobjectmodule.c */
extern struct _PyGObject_Functions pygobject_api_functions;
#define pyg_block_threads() G_STMT_START { \
if (pygobject_api_functions.block_threads != NULL) \
(* pygobject_api_functions.block_threads)(); \
} G_STMT_END
#define pyg_unblock_threads() G_STMT_START { \
if (pygobject_api_functions.unblock_threads != NULL) \
(* pygobject_api_functions.unblock_threads)(); \
} G_STMT_END
#define pyg_threads_enabled (pygobject_api_functions.threads_enabled)
#define pyg_gil_state_ensure() (pygobject_api_functions.threads_enabled? (pygobject_api_functions.gil_state_ensure()) : 0)
#define pyg_gil_state_release(state) G_STMT_START { \
if (pygobject_api_functions.threads_enabled) \
pygobject_api_functions.gil_state_release(state); \
} G_STMT_END
#define pyg_begin_allow_threads \
G_STMT_START { \
PyThreadState *_save = NULL; \
if (pygobject_api_functions.threads_enabled) \
_save = PyEval_SaveThread();
#define pyg_end_allow_threads \
if (pygobject_api_functions.threads_enabled) \
PyEval_RestoreThread(_save); \
} G_STMT_END
extern GType PY_TYPE_OBJECT;
void pyg_destroy_notify (gpointer user_data);
/* from pygtype.h */
extern PyTypeObject PyGTypeWrapper_Type;
PyObject *pyg_type_wrapper_new (GType type);
GType pyg_type_from_object (PyObject *obj);
gint pyg_enum_get_value (GType enum_type, PyObject *obj, gint *val);
gint pyg_flags_get_value (GType flag_type, PyObject *obj, gint *val);
int pyg_pyobj_to_unichar_conv (PyObject* py_obj, void* ptr);
typedef PyObject *(* fromvaluefunc)(const GValue *value);
typedef int (*tovaluefunc)(GValue *value, PyObject *obj);
void pyg_register_boxed_custom(GType boxed_type,
fromvaluefunc from_func,
tovaluefunc to_func);
int pyg_value_from_pyobject(GValue *value, PyObject *obj);
PyObject *pyg_value_as_pyobject(const GValue *value, gboolean copy_boxed);
int pyg_param_gvalue_from_pyobject(GValue* value,
PyObject* py_obj,
const GParamSpec* pspec);
PyObject *pyg_param_gvalue_as_pyobject(const GValue* gvalue,
gboolean copy_boxed,
const GParamSpec* pspec);
GClosure *pyg_closure_new(PyObject *callback, PyObject *extra_args, PyObject *swap_data);
GClosure *pyg_signal_class_closure_get(void);
PyObject *pyg_object_descr_doc_get(void);
/* from pygobject.h */
extern PyTypeObject PyGObject_Type;
extern PyTypeObject PyGInterface_Type;
extern GQuark pyginterface_type_key;
void pygobject_register_class (PyObject *dict,
const gchar *type_name,
GType gtype, PyTypeObject *type,
PyObject *bases);
void pygobject_register_wrapper (PyObject *self);
PyObject * pygobject_new (GObject *obj);
PyTypeObject *pygobject_lookup_class (GType gtype);
void pygobject_watch_closure (PyObject *self, GClosure *closure);
void pygobject_register_sinkfunc(GType type,
void (* sinkfunc)(GObject *object));
/* from pygboxed.c */
extern PyTypeObject PyGBoxed_Type;
void pyg_register_boxed (PyObject *dict, const gchar *class_name,
GType boxed_type, PyTypeObject *type);
PyObject * pyg_boxed_new (GType boxed_type, gpointer boxed,
gboolean copy_boxed, gboolean own_ref);
extern PyTypeObject PyGPointer_Type;
void pyg_register_pointer (PyObject *dict, const gchar *class_name,
GType pointer_type, PyTypeObject *type);
PyObject * pyg_pointer_new (GType pointer_type, gpointer pointer);
extern char * pyg_constant_strip_prefix(gchar *name, const gchar *strip_prefix);
/* pygflags */
typedef struct {
PyIntObject parent;
GType gtype;
} PyGFlags;
extern PyTypeObject PyGFlags_Type;
#define PyGFlags_Check(x) (g_type_is_a(((PyGFlags*)x)->gtype, G_TYPE_FLAGS))
extern PyObject * pyg_flags_add (PyObject * module,
const char * typename,
const char * strip_prefix,
GType gtype);
extern PyObject * pyg_flags_from_gtype (GType gtype,
int value);
/* pygenum */
#define PyGEnum_Check(x) (g_type_is_a(((PyGFlags*)x)->gtype, G_TYPE_ENUM))
typedef struct {
PyIntObject parent;
GType gtype;
} PyGEnum;
extern PyTypeObject PyGEnum_Type;
extern PyObject * pyg_enum_add (PyObject * module,
const char * typename,
const char * strip_prefix,
GType gtype);
extern PyObject * pyg_enum_from_gtype (GType gtype,
int value);
/* pygmainloop */
typedef struct {
PyObject_HEAD
GMainLoop *loop;
GSource *signal_source;
} PyGMainLoop;
extern PyTypeObject PyGMainLoop_Type;
/* pygmaincontext */
typedef struct {
PyObject_HEAD
GMainContext *context;
} PyGMainContext;
extern PyTypeObject PyGMainContext_Type;
/* pygparamspec */
extern PyTypeObject PyGParamSpec_Type;
PyObject * pyg_param_spec_new (GParamSpec *pspec);
#endif

393
gst/pygstminiobject.c Normal file
View file

@ -0,0 +1,393 @@
/* -*- Mode: C; c-basic-offset: 4 -*-
* pygtk- Python bindings for the GTK toolkit.
* Copyright (C) 1998-2003 James Henstridge
*
* pygobject.c: wrapper for the GObject type.
*
* This 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.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser 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
*/
#include <gst/gst.h>
#include "pygstminiobject.h"
static const gchar *pygstminiobject_class_id = "PyGstMiniObject::class";
static GQuark pygstminiobject_class_key = 0;
static const gchar *pygstminiobject_wrapper_id = "PyGstMiniObject::wrapper";
static GQuark pygstminiobject_wrapper_key = 0;
static void pygstminiobject_dealloc(PyGstMiniObject *self);
static int pygstminiobject_traverse(PyGstMiniObject *self, visitproc visit, void *arg);
static int pygstminiobject_clear(PyGstMiniObject *self);
/**
* pygstminiobject_lookup_class:
* @gtype: the GType of the GstMiniObject subclass.
*
* This function looks up the wrapper class used to represent
* instances of a GstMiniObject represented by @gtype. If no wrapper class
* or interface has been registered for the given GType, then a new
* type will be created.
*
* Returns: The wrapper class for the GstMiniObject or NULL if the
* GType has no registered type and a new type couldn't be created
*/
PyTypeObject *
pygstminiobject_lookup_class(GType gtype)
{
PyTypeObject *py_type;
py_type = g_type_get_qdata(gtype, pygstminiobject_class_key);
return py_type;
}
/**
* pygstminiobject_register_class:
* @dict: the module dictionary. A reference to the type will be stored here.
* @type_name: not used ?
* @gtype: the GType of the Gstminiobject subclass.
* @type: the Python type object for this wrapper.
* @bases: a tuple of Python type objects that are the bases of this type.
*
* This function is used to register a Python type as the wrapper for
* a particular Gstminiobject subclass. It will also insert a reference to
* the wrapper class into the module dictionary passed as a reference,
* which simplifies initialisation.
*/
void
pygstminiobject_register_class(PyObject *dict, const gchar *type_name,
GType gtype, PyTypeObject *type,
PyObject *bases)
{
PyObject *o;
const char *class_name, *s;
if (!pygstminiobject_class_key)
pygstminiobject_class_key = g_quark_from_static_string(pygstminiobject_class_id);
class_name = type->tp_name;
s = strrchr(class_name, '.');
if (s != NULL)
class_name = s + 1;
type->ob_type = &PyType_Type;
if (bases) {
type->tp_bases = bases;
type->tp_base = (PyTypeObject *)PyTuple_GetItem(bases, 0);
}
if (PyType_Ready(type) < 0) {
g_warning ("couldn't make the type `%s' ready", type->tp_name);
return;
}
if (gtype) {
o = pyg_type_wrapper_new(gtype);
PyDict_SetItemString(type->tp_dict, "__gtype__", o);
Py_DECREF(o);
/* stash a pointer to the python class with the GType */
Py_INCREF(type);
g_type_set_qdata(gtype, pygstminiobject_class_key, type);
}
/* set up __doc__ descriptor on type */
/* PyDict_SetItemString(type->tp_dict, "__doc__", */
/* pyg_object_descr_doc_get()); */
PyDict_SetItemString(dict, (char *)class_name, (PyObject *)type);
}
/**
* pygstminiobject_new:
* @obj: a GstMiniObject instance.
*
* This function gets a reference to a wrapper for the given GstMiniObject
* instance. If a wrapper has already been created, a new reference
* to that wrapper will be returned. Otherwise, a wrapper instance
* will be created.
*
* Returns: a reference to the wrapper for the GstMiniObject.
*/
PyObject *
pygstminiobject_new(GstMiniObject *obj)
{
PyGstMiniObject *self;
if (!pygstminiobject_wrapper_key)
pygstminiobject_wrapper_key = g_quark_from_static_string(pygstminiobject_wrapper_id);
if (obj == NULL) {
Py_INCREF(Py_None);
return Py_None;
}
/* create wrapper */
PyTypeObject *tp = pygstminiobject_lookup_class(G_OBJECT_TYPE(obj));
/* need to bump type refcount if created with
pygstminiobject_new_with_interfaces(). fixes bug #141042 */
if (tp->tp_flags & Py_TPFLAGS_HEAPTYPE)
Py_INCREF(tp);
self = PyObject_GC_New(PyGstMiniObject, tp);
if (self == NULL)
return NULL;
self->obj = gst_mini_object_ref(obj);
self->inst_dict = NULL;
self->weakreflist = NULL;
/* save wrapper pointer so we can access it later */
Py_INCREF(self);
/* g_object_set_qdata_full(obj, pygstminiobject_wrapper_key, self, */
/* pyg_destroy_notify); */
PyObject_GC_Track((PyObject *)self);
return (PyObject *)self;
}
static void
pygstminiobject_dealloc(PyGstMiniObject *self)
{
PyObject_ClearWeakRefs((PyObject *)self);
PyObject_GC_UnTrack((PyObject *)self);
if (self->obj) {
gst_mini_object_unref(self->obj);
}
self->obj = NULL;
if (self->inst_dict) {
Py_DECREF(self->inst_dict);
}
self->inst_dict = NULL;
/* the following causes problems with subclassed types */
/* self->ob_type->tp_free((PyObject *)self); */
PyObject_GC_Del(self);
}
static int
pygstminiobject_compare(PyGstMiniObject *self, PyGstMiniObject *v)
{
if (self->obj == v->obj) return 0;
if (self->obj > v->obj) return -1;
return 1;
}
static long
pygstminiobject_hash(PyGstMiniObject *self)
{
return (long)self->obj;
}
static PyObject *
pygstminiobject_repr(PyGstMiniObject *self)
{
gchar buf[256];
g_snprintf(buf, sizeof(buf),
"<%s mini-object (%s) at 0x%lx>",
self->ob_type->tp_name,
self->obj ? G_OBJECT_TYPE_NAME(self->obj) : "uninitialized",
(long)self);
return PyString_FromString(buf);
}
static int
pygstminiobject_traverse(PyGstMiniObject *self, visitproc visit, void *arg)
{
int ret = 0;
if (self->inst_dict) ret = visit(self->inst_dict, arg);
if (ret != 0) return ret;
if (self->obj && self->obj->refcount == 1)
ret = visit((PyObject *)self, arg);
if (ret != 0) return ret;
return 0;
}
static int
pygstminiobject_clear(PyGstMiniObject *self)
{
if (self->inst_dict) {
Py_DECREF(self->inst_dict);
}
self->inst_dict = NULL;
if (self->obj) {
gst_mini_object_unref(self->obj);
}
self->obj = NULL;
return 0;
}
static void
pygstminiobject_free(PyObject *op)
{
PyObject_GC_Del(op);
}
/* ---------------- PyGstMiniObject methods ----------------- */
static int
pygstminiobject_init(PyGstMiniObject *self, PyObject *args, PyObject *kwargs)
{
GType object_type;
GstMiniObjectClass *class;
if (!PyArg_ParseTuple(args, ":GstMiniObject.__init__", &object_type))
return -1;
object_type = pyg_type_from_object((PyObject *)self);
if (!object_type)
return -1;
if (G_TYPE_IS_ABSTRACT(object_type)) {
PyErr_Format(PyExc_TypeError, "cannot create instance of abstract "
"(non-instantiable) type `%s'", g_type_name(object_type));
return -1;
}
if ((class = g_type_class_ref (object_type)) == NULL) {
PyErr_SetString(PyExc_TypeError,
"could not get a reference to type class");
return -1;
}
self->obj = gst_mini_object_new(object_type);
if (self->obj == NULL)
PyErr_SetString (PyExc_RuntimeError, "could not create object");
g_type_class_unref(class);
return (self->obj) ? 0 : -1;
}
static PyObject *
pygstminiobject__gstminiobject_init__(PyGstMiniObject *self, PyObject *args, PyObject *kwargs)
{
if (pygstminiobject_init(self, args, kwargs) < 0)
return NULL;
Py_INCREF(Py_None);
return Py_None;
}
static PyObject *
pygstminiobject_copy(PyGstMiniObject *self, PyObject *args)
{
return pygstminiobject_new(gst_mini_object_copy(self->obj));
}
static PyObject *
pygstminiobject_ref(PyGstMiniObject *self, PyObject *args)
{
return pygstminiobject_new(gst_mini_object_ref(self->obj));
}
static PyObject *
pygstminiobject_unref(PyGstMiniObject *self, PyObject *args)
{
gst_mini_object_ref(self->obj);
Py_INCREF(Py_None);
return Py_None;
}
static PyMethodDef pygstminiobject_methods[] = {
{ "__gstminiobject_init__", (PyCFunction)pygstminiobject__gstminiobject_init__,
METH_VARARGS|METH_KEYWORDS },
{ "copy", (PyCFunction)pygstminiobject_copy, METH_VARARGS},
{ "ref", (PyCFunction)pygstminiobject_ref, METH_VARARGS},
{ "unref", (PyCFunction)pygstminiobject_unref, METH_VARARGS},
{ NULL, NULL, 0 }
};
static PyObject *
pygstminiobject_get_dict(PyGstMiniObject *self, void *closure)
{
if (self->inst_dict == NULL) {
self->inst_dict = PyDict_New();
if (self->inst_dict == NULL)
return NULL;
}
Py_INCREF(self->inst_dict);
return self->inst_dict;
}
static PyObject *
pygstminiobject_get_refcount(PyGstMiniObject *self, void *closure)
{
return PyInt_FromLong(GST_MINI_OBJECT_REFCOUNT_VALUE(self->obj));
}
static PyGetSetDef pygstminiobject_getsets[] = {
{ "__dict__", (getter)pygstminiobject_get_dict, (setter)0 },
{ "__grefcount__", (getter)pygstminiobject_get_refcount, (setter)0, },
{ NULL, 0, 0 }
};
PyTypeObject PyGstMiniObject_Type = {
PyObject_HEAD_INIT(NULL)
0, /* ob_size */
"gst.GstMiniObject", /* tp_name */
sizeof(PyGstMiniObject), /* tp_basicsize */
0, /* tp_itemsize */
/* methods */
(destructor)pygstminiobject_dealloc, /* tp_dealloc */
(printfunc)0, /* tp_print */
(getattrfunc)0, /* tp_getattr */
(setattrfunc)0, /* tp_setattr */
(cmpfunc)pygstminiobject_compare, /* tp_compare */
(reprfunc)pygstminiobject_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
(hashfunc)pygstminiobject_hash, /* tp_hash */
(ternaryfunc)0, /* tp_call */
(reprfunc)0, /* tp_str */
(getattrofunc)0, /* tp_getattro */
(setattrofunc)0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE |
Py_TPFLAGS_HAVE_GC, /* tp_flags */
NULL, /* Documentation string */
(traverseproc)pygstminiobject_traverse, /* tp_traverse */
(inquiry)pygstminiobject_clear, /* tp_clear */
(richcmpfunc)0, /* tp_richcompare */
offsetof(PyGstMiniObject, weakreflist), /* tp_weaklistoffset */
(getiterfunc)0, /* tp_iter */
(iternextfunc)0, /* tp_iternext */
pygstminiobject_methods, /* tp_methods */
0, /* tp_members */
pygstminiobject_getsets, /* tp_getset */
(PyTypeObject *)0, /* tp_base */
(PyObject *)0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
offsetof(PyGstMiniObject, inst_dict), /* tp_dictoffset */
(initproc)pygstminiobject_init, /* tp_init */
(allocfunc)0, /* tp_alloc */
(newfunc)0, /* tp_new */
(freefunc)pygstminiobject_free, /* tp_free */
(inquiry)0, /* tp_is_gc */
(PyObject *)0, /* tp_bases */
};

69
gst/pygstminiobject.h Normal file
View file

@ -0,0 +1,69 @@
/* -*- Mode: C; c-basic-offset: 4 -*- */
#ifndef _PYGSTMINIOBJECT_H_
#define _PYGSTMINIOBJECT_H_
#include <Python.h>
#include <glib.h>
#include <glib-object.h>
#include "common.h"
G_BEGIN_DECLS
/* Work around bugs in PyGILState api fixed in 2.4.0a4 */
#if PY_VERSION_HEX < 0x020400A4
#define PYGIL_API_IS_BUGGY TRUE
#else
#define PYGIL_API_IS_BUGGY FALSE
#endif
typedef struct {
PyObject_HEAD
GstMiniObject *obj;
PyObject *inst_dict; /* the instance dictionary -- must be last */
PyObject *weakreflist; /* list of weak references */
} PyGstMiniObject;
PyObject *
pygstminiobject_new(GstMiniObject *obj);
#define pygstminiobject_get(v) (((PyGstMiniObject *)(v))->obj)
#define pygstminiobject_check(v,base) (PyObject_TypeCheck(v,base))
void
pygstminiobject_register_class(PyObject *dict, const gchar *type_name,
GType gtype, PyTypeObject *type,
PyObject *bases);
#ifndef _INSIDE_PYGSTMINIOBJECT_
struct _PyGObject_Functions *_PyGObject_API;
extern PyTypeObject PyGstMiniObject_Type;
#define init_pygstminiobject() { \
PyObject *gstminiobject = PyImport_ImportModule("gstminiobject"); \
if (gstminiobject != NULL) { \
PyObject *mdict = PyModule_GetDict(gstminiobject); \
PyObject *cobject = PyDict_GetItemString(mdict, "_PyGstMiniObject_API"); \
if (PyCObject_Check(cobject)) \
_PyGstMiniObject_API = (struct _PyGstMiniObject_Functions *)PyCObject_AsVoidPtr(cobject); \
else { \
PyErr_SetString(PyExc_RuntimeError, \
"could not find _PyGstMiniObject_API object"); \
return; \
} \
} else { \
PyErr_SetString(PyExc_ImportError, \
"could not import gst"); \
return; \
} \
}
#endif /* !_INSIDE_PYGSTMINIOBJECT_ */
G_END_DECLS
#endif /* !_PYGSTMINIOBJECT_H_ */