GF_EXPORT
GF_Err gf_sg_vrml_mf_append(void *mf, u32 FieldType, void **new_ptr)
{
GenMFField *mffield = (GenMFField *)mf;
return gf_sg_vrml_mf_insert(mf, FieldType, new_ptr, mffield->count+2);
}
GF_EXPORT
GF_Err gf_sg_command_apply(GF_SceneGraph *graph, GF_Command *com, Double time_offset)
{
GF_Err e;
GF_CommandField *inf;
GF_FieldInfo field;
GF_Node *def, *node;
void *slot_ptr;
if (!com || !graph) return GF_BAD_PARAM;
e = GF_OK;
switch (com->tag) {
case GF_SG_SCENE_REPLACE:
/*unregister root*/
gf_node_unregister(graph->RootNode, NULL);
/*remove all protos and routes*/
while (gf_list_count(graph->routes_to_activate))
gf_list_rem(graph->routes_to_activate, 0);
/*destroy all routes*/
while (gf_list_count(graph->Routes)) {
GF_Route *r = (GF_Route *)gf_list_get(graph->Routes, 0);
/*this will unregister the route from the graph, so don't delete the chain entry*/
gf_sg_route_del(r);
}
/*destroy all proto*/
while (gf_list_count(graph->protos)) {
GF_Proto *p = (GF_Proto*)gf_list_get(graph->protos, 0);
/*this will unregister the proto from the graph, so don't delete the chain entry*/
gf_sg_proto_del(p);
}
/*DO NOT TOUCH node registry*/
/*DO NOT TOUCH UNREGISTERED PROTOS*/
/*move all protos in graph*/
while (gf_list_count(com->new_proto_list)) {
GF_Proto *p = (GF_Proto*)gf_list_get(com->new_proto_list, 0);
gf_list_rem(com->new_proto_list, 0);
gf_list_del_item(graph->unregistered_protos, p);
gf_list_add(graph->protos, p);
}
/*assign new root (no need to register/unregister)*/
graph->RootNode = com->node;
com->node = NULL;
break;
case GF_SG_NODE_REPLACE:
if (!gf_list_count(com->command_fields)) return GF_OK;
inf = (GF_CommandField*)gf_list_get(com->command_fields, 0);
e = gf_node_replace(com->node, inf->new_node, 0);
if (inf->new_node) gf_node_register(inf->new_node, NULL);
break;
case GF_SG_MULTIPLE_REPLACE:
case GF_SG_FIELD_REPLACE:
{
u32 j;
GF_ChildNodeItem *list, *cur, *prev;
j=0;
while ((inf = (GF_CommandField*)gf_list_enum(com->command_fields, &j))) {
e = gf_node_get_field(com->node, inf->fieldIndex, &field);
if (e) return e;
switch (field.fieldType) {
case GF_SG_VRML_SFNODE:
{
node = *((GF_Node **) field.far_ptr);
e = gf_node_unregister(node, com->node);
*((GF_Node **) field.far_ptr) = inf->new_node;
if (!e) gf_node_register(inf->new_node, com->node);
break;
}
case GF_SG_VRML_MFNODE:
gf_node_unregister_children(com->node, * ((GF_ChildNodeItem **) field.far_ptr));
* ((GF_ChildNodeItem **) field.far_ptr) = NULL;
list = * ((GF_ChildNodeItem **) inf->field_ptr);
prev=NULL;
while (list) {
cur = malloc(sizeof(GF_ChildNodeItem));
cur->next = NULL;
cur->node = list->node;
if (prev) {
prev->next = cur;
} else {
* ((GF_ChildNodeItem **) field.far_ptr) = cur;
}
gf_node_register(list->node, com->node);
prev = cur;
list = list->next;
}
break;
default:
/*this is a regular field, reset it and clone - we cannot switch pointers since the
original fields are NOT pointers*/
if (!gf_sg_vrml_is_sf_field(field.fieldType)) {
e = gf_sg_vrml_mf_reset(field.far_ptr, field.fieldType);
}
if (e) return e;
gf_sg_vrml_field_copy(field.far_ptr, inf->field_ptr, field.fieldType);
if (field.fieldType==GF_SG_VRML_SFTIME) *(SFTime *)field.far_ptr = *(SFTime *)field.far_ptr + time_offset;
break;
}
SG_CheckFieldChange(com->node, &field);
}
break;
}
case GF_SG_MULTIPLE_INDEXED_REPLACE:
case GF_SG_INDEXED_REPLACE:
{
u32 sftype, i=0;
while ((inf = (GF_CommandField*)gf_list_enum(com->command_fields, &i))) {
e = gf_node_get_field(com->node, inf->fieldIndex, &field);
if (e) return e;
/*if MFNode remove the child and set new node*/
if (field.fieldType == GF_SG_VRML_MFNODE) {
/*we must remove the node before in case the new node uses the same ID (not forbidden) and this
command removes the last instance of the node with the same ID*/
gf_node_replace_child(com->node, (GF_ChildNodeItem**) field.far_ptr, inf->pos, inf->new_node);
if (inf->new_node) gf_node_register(inf->new_node, NULL);
}
/*erase the field item*/
else {
if ((inf->pos < 0) || ((u32) inf->pos >= ((GenMFField *) field.far_ptr)->count) ) {
inf->pos = ((GenMFField *)field.far_ptr)->count - 1;
/*may happen with text and default value*/
if (inf->pos < 0) {
inf->pos = 0;
gf_sg_vrml_mf_alloc(field.far_ptr, field.fieldType, 1);
}
}
e = gf_sg_vrml_mf_get_item(field.far_ptr, field.fieldType, & slot_ptr, inf->pos);
if (e) return e;
sftype = gf_sg_vrml_get_sf_type(field.fieldType);
gf_sg_vrml_field_copy(slot_ptr, inf->field_ptr, sftype);
/*note we don't add time offset, since there's no MFTime*/
}
SG_CheckFieldChange(com->node, &field);
}
break;
}
case GF_SG_ROUTE_REPLACE:
{
GF_Route *r;
char *name;
r = gf_sg_route_find(graph, com->RouteID);
def = gf_sg_find_node(graph, com->fromNodeID);
node = gf_sg_find_node(graph, com->toNodeID);
if (!node || !def) return GF_SG_UNKNOWN_NODE;
name = NULL;
if (r) {
name = r->name;
r->name = NULL;
gf_sg_route_del(r);
}
r = gf_sg_route_new(graph, def, com->fromFieldIndex, node, com->toFieldIndex);
gf_sg_route_set_id(r, com->RouteID);
if (name) {
gf_sg_route_set_name(r, name);
free(name);
}
break;
}
case GF_SG_NODE_DELETE_EX:
case GF_SG_NODE_DELETE:
{
if (com->node) gf_node_replace(com->node, NULL, (com->tag==GF_SG_NODE_DELETE_EX) ? 1 : 0);
break;
}
case GF_SG_ROUTE_DELETE:
{
return gf_sg_route_del_by_id(graph, com->RouteID);
}
case GF_SG_INDEXED_DELETE:
{
if (!gf_list_count(com->command_fields)) return GF_OK;
inf = (GF_CommandField*)gf_list_get(com->command_fields, 0);
e = gf_node_get_field(com->node, inf->fieldIndex, &field);
if (e) return e;
if (gf_sg_vrml_is_sf_field(field.fieldType)) return GF_NON_COMPLIANT_BITSTREAM;
/*then we need special handling in case of a node*/
if (gf_sg_vrml_get_sf_type(field.fieldType) == GF_SG_VRML_SFNODE) {
e = gf_node_replace_child(com->node, (GF_ChildNodeItem **) field.far_ptr, inf->pos, NULL);
} else {
if ((inf->pos < 0) || ((u32) inf->pos >= ((GenMFField *) field.far_ptr)->count) ) {
inf->pos = ((GenMFField *)field.far_ptr)->count - 1;
}
/*this is a regular MFField, just remove the item (realloc)*/
e = gf_sg_vrml_mf_remove(field.far_ptr, field.fieldType, inf->pos);
}
/*deletion -> node has changed*/
if (!e) SG_CheckFieldChange(com->node, &field);
break;
}
case GF_SG_NODE_INSERT:
{
if (!gf_list_count(com->command_fields)) return GF_OK;
inf = (GF_CommandField*)gf_list_get(com->command_fields, 0);
e = gf_node_insert_child(com->node, inf->new_node, inf->pos);
if (!e) gf_node_register(inf->new_node, com->node);
if (!e) gf_node_event_out(com->node, inf->fieldIndex);
if (!e) gf_node_changed(com->node, NULL);
break;
}
case GF_SG_ROUTE_INSERT:
{
GF_Route *r;
def = gf_sg_find_node(graph, com->fromNodeID);
node = gf_sg_find_node(graph, com->toNodeID);
if (!node || !def) return GF_SG_UNKNOWN_NODE;
r = gf_sg_route_new(graph, def, com->fromFieldIndex, node, com->toFieldIndex);
if (com->RouteID) gf_sg_route_set_id(r, com->RouteID);
if (com->def_name) {
gf_sg_route_set_name(r, com->def_name);
free(com->def_name);
com->def_name = NULL;
}
break;
}
case GF_SG_INDEXED_INSERT:
{
u32 sftype;
if (!gf_list_count(com->command_fields)) return GF_OK;
inf = (GF_CommandField*)gf_list_get(com->command_fields, 0);
e = gf_node_get_field(com->node, inf->fieldIndex, &field);
if (e) return e;
/*rescale the MFField and parse the SFField*/
if (field.fieldType != GF_SG_VRML_MFNODE) {
if (inf->pos == -1) {
e = gf_sg_vrml_mf_append(field.far_ptr, field.fieldType, & slot_ptr);
} else {
e = gf_sg_vrml_mf_insert(field.far_ptr, field.fieldType, & slot_ptr, inf->pos);
}
if (e) return e;
sftype = gf_sg_vrml_get_sf_type(field.fieldType);
gf_sg_vrml_field_copy(slot_ptr, inf->field_ptr, sftype);
} else {
if (inf->new_node) {
if (inf->pos == -1) {
gf_node_list_add_child( (GF_ChildNodeItem **) field.far_ptr, inf->new_node);
} else {
gf_node_list_insert_child((GF_ChildNodeItem **) field.far_ptr, inf->new_node, inf->pos);
}
gf_node_register(inf->new_node, com->node);
}
}
if (!e) SG_CheckFieldChange(com->node, &field);
break;
}
case GF_SG_PROTO_INSERT:
/*destroy all proto*/
while (gf_list_count(com->new_proto_list)) {
GF_Proto *p = (GF_Proto*)gf_list_get(com->new_proto_list, 0);
gf_list_rem(com->new_proto_list, 0);
gf_list_del_item(graph->unregistered_protos, p);
gf_list_add(graph->protos, p);
}
return GF_OK;
case GF_SG_PROTO_DELETE:
{
u32 i;
for (i=0; i<com->del_proto_list_size; i++) {
/*note this will check for unregistered protos, but since IDs are unique we are sure we will
not destroy an unregistered one*/
GF_Proto *proto = gf_sg_find_proto(graph, com->del_proto_list[i], NULL);
if (proto) gf_sg_proto_del(proto);
}
}
return GF_OK;
case GF_SG_PROTO_DELETE_ALL:
/*destroy all proto*/
while (gf_list_count(graph->protos)) {
GF_Proto *p = (GF_Proto*)gf_list_get(graph->protos, 0);
gf_list_rem(graph->protos, 0);
/*this will unregister the proto from the graph, so don't delete the chain entry*/
gf_sg_proto_del(p);
}
/*DO NOT TOUCH UNREGISTERED PROTOS*/
return GF_OK;
/*only used by BIFS*/
case GF_SG_GLOBAL_QUANTIZER:
return GF_OK;
#ifndef GPAC_DISABLE_SVG
/*laser commands*/
case GF_SG_LSR_NEW_SCENE:
/*DO NOT TOUCH node registry*/
/*assign new root (no need to register/unregister)*/
graph->RootNode = com->node;
com->node = NULL;
break;
case GF_SG_LSR_DELETE:
if (!com->node) return GF_NON_COMPLIANT_BITSTREAM;
if (!gf_list_count(com->command_fields)) {
gf_node_replace(com->node, NULL, 0);
gf_node_deactivate(com->node);
return GF_OK;
}
inf = (GF_CommandField*)gf_list_get(com->command_fields, 0);
node = gf_node_list_get_child(((SVG_Element *)com->node)->children, inf->pos);
if (node) {
e = gf_node_replace_child(com->node, &((SVG_Element *)com->node)->children, inf->pos, NULL);
gf_node_deactivate(node);
}
break;
case GF_SG_LSR_INSERT:
inf = (GF_CommandField*)gf_list_get(com->command_fields, 0);
if (!com->node || !inf) return GF_NON_COMPLIANT_BITSTREAM;
if (inf->new_node) {
if (inf->pos<0)
gf_node_list_add_child(& ((SVG_Element *)com->node)->children, inf->new_node);
else
gf_node_list_insert_child(& ((SVG_Element *)com->node)->children, inf->new_node, inf->pos);
gf_node_register(inf->new_node, com->node);
gf_node_activate(inf->new_node);
gf_node_changed(com->node, NULL);
} else {
/*NOT SUPPORTED*/
GF_LOG(GF_LOG_ERROR, GF_LOG_CODEC, ("[LASeR] VALUE INSERTION NOT SUPPORTED\n"));
}
break;
case GF_SG_LSR_ADD:
case GF_SG_LSR_REPLACE:
inf = (GF_CommandField*)gf_list_get(com->command_fields, 0);
if (!com->node || !inf) return GF_NON_COMPLIANT_BITSTREAM;
if (inf->new_node) {
if (inf->pos<0) {
/*if fieldIndex (eg attributeName) is set, this is children replacement*/
if (inf->fieldIndex>0) {
gf_node_unregister_children_deactivate(com->node, ((SVG_Element *)com->node)->children);
((SVG_Element *)com->node)->children = NULL;
gf_node_list_add_child(& ((SVG_Element *)com->node)->children, inf->new_node);
gf_node_register(inf->new_node, com->node);
gf_node_activate(inf->new_node);
} else {
e = gf_node_replace(com->node, inf->new_node, 0);
gf_node_activate(inf->new_node);
}
} else {
node = gf_node_list_get_child( ((SVG_Element *)com->node)->children, inf->pos);
gf_node_replace_child(com->node, & ((SVG_Element *)com->node)->children, inf->pos, inf->new_node);
gf_node_register(inf->new_node, com->node);
if (node) gf_node_deactivate(node);
gf_node_activate(inf->new_node);
}
/*signal node modif*/
gf_node_changed(com->node, NULL);
return e;
} else if (inf->node_list) {
GF_ChildNodeItem *child, *cur, *prev;
gf_node_unregister_children_deactivate(com->node, ((SVG_Element *)com->node)->children);
((SVG_Element *)com->node)->children = NULL;
prev = NULL;
child = inf->node_list;
while (child) {
cur = (GF_ChildNodeItem*)malloc(sizeof(GF_ChildNodeItem));
cur->next = NULL;
cur->node = child->node;
gf_node_register(child->node, com->node);
gf_node_activate(child->node);
if (prev) prev->next = cur;
else ((SVG_Element *)com->node)->children = cur;
prev = cur;
child = child->next;
}
/*signal node modif*/
gf_node_changed(com->node, NULL);
return GF_OK;
}
/*attribute modif*/
else if (inf->field_ptr) {
GF_FieldInfo a, b;
if (inf->fieldIndex==(u32) -2) {
GF_Point2D scale, translate;
Fixed rotate;
GF_Matrix2D *dest;
gf_node_get_field_by_name(com->node, "transform", &a);
dest = (GF_Matrix2D*)a.far_ptr;
if (com->tag==GF_SG_LSR_REPLACE) {
if (gf_mx2d_decompose(dest, &scale, &rotate, &translate)) {
gf_mx2d_init(*dest);
if (inf->fieldType==SVG_TRANSFORM_SCALE) scale = *(GF_Point2D *)inf->field_ptr;
else if (inf->fieldType==SVG_TRANSFORM_TRANSLATE) translate = *(GF_Point2D *)inf->field_ptr;
else if (inf->fieldType==SVG_TRANSFORM_ROTATE) rotate = ((SVG_Point_Angle*)inf->field_ptr)->angle;
gf_mx2d_add_scale(dest, scale.x, scale.y);
gf_mx2d_add_rotation(dest, 0, 0, rotate);
gf_mx2d_add_translation(dest, translate.x, translate.y);
}
} else {
GF_Point2D *pt = (GF_Point2D *)inf->field_ptr;
if (inf->fieldType==SVG_TRANSFORM_SCALE) gf_mx2d_add_scale(dest, pt->x, pt->y);
else if (inf->fieldType==SVG_TRANSFORM_TRANSLATE) gf_mx2d_add_translation(dest, pt->x, pt->y);
else if (inf->fieldType == SVG_TRANSFORM_ROTATE) gf_mx2d_add_rotation(dest, 0, 0, ((SVG_Point_Angle*)inf->field_ptr)->angle);
}
} else {
if ((inf->fieldIndex==(u32) -1) && (inf->fieldType==SVG_String_datatype)) {
char *str = *(SVG_String*)inf->field_ptr;
if (com->tag == GF_SG_LSR_REPLACE) {
GF_DOMText *t = ((SVG_Element*)com->node)->children ? (GF_DOMText*) ((SVG_Element*)com->node)->children->node :NULL;
if (t && (t->sgprivate->tag==TAG_DOMText)) {
if (t->textContent) free(t->textContent);
t->textContent = NULL;
if (str) t->textContent = strdup(str);
}
} else {
if (str) gf_dom_add_text_node(com->node, strdup(str));
}
}
else if ((inf->fieldIndex==TAG_LSR_ATT_scale)
|| (inf->fieldIndex==TAG_LSR_ATT_translation)
|| (inf->fieldIndex==TAG_LSR_ATT_rotation)
) {
SVG_Transform *mx;
gf_svg_get_attribute_by_tag(com->node, TAG_SVG_ATT_transform, 1, 0, &a);
mx = a.far_ptr;
if (com->tag == GF_SG_LSR_REPLACE) {
GF_Point2D scale, translate;
SVG_Point_Angle rotate;
if (gf_mx2d_decompose(&mx->mat, &scale, &rotate.angle, &translate)) {
gf_mx2d_init(mx->mat);
if (inf->fieldIndex==TAG_LSR_ATT_scale) scale = *(GF_Point2D *)inf->field_ptr;
else if (inf->fieldIndex==TAG_LSR_ATT_translation) translate = *(GF_Point2D *)inf->field_ptr;
else if (inf->fieldIndex==TAG_LSR_ATT_rotation) rotate = *(SVG_Point_Angle*)inf->field_ptr;
gf_mx2d_add_scale(&mx->mat, scale.x, scale.y);
gf_mx2d_add_rotation(&mx->mat, 0, 0, rotate.angle);
gf_mx2d_add_translation(&mx->mat, translate.x, translate.y);
}
} else {
if (inf->fieldIndex==TAG_LSR_ATT_scale) gf_mx2d_add_scale(&mx->mat, ((GF_Point2D*)inf->field_ptr)->x, ((GF_Point2D*)inf->field_ptr)->y);
if (inf->fieldIndex==TAG_LSR_ATT_translation) gf_mx2d_add_translation(&mx->mat, ((GF_Point2D*)inf->field_ptr)->x, ((GF_Point2D*)inf->field_ptr)->y);
if (inf->fieldIndex==TAG_LSR_ATT_rotation) gf_mx2d_add_rotation(&mx->mat, 0, 0, ((SVG_Point_Angle*)inf->field_ptr)->angle);
}
}
else if (gf_svg_get_attribute_by_tag(com->node, inf->fieldIndex, 1, 0, &a) == GF_OK) {
b = a;
b.far_ptr = inf->field_ptr;
if (com->tag == GF_SG_LSR_REPLACE) {
gf_svg_attributes_copy(&a, &b, 0);
} else {
gf_svg_attributes_add(&a, &b, &a, 0);
}
}
b = a;
b.far_ptr = inf->field_ptr;
}
/*signal node modif*/
gf_node_changed(com->node, &a);
} else if (com->fromNodeID) {
GF_FieldInfo a, b;
GF_Node *fromNode = gf_sg_find_node(graph, com->fromNodeID);
if (!fromNode) return GF_NON_COMPLIANT_BITSTREAM;
if (gf_node_get_field(fromNode, com->fromFieldIndex, &b) != GF_OK) return GF_NON_COMPLIANT_BITSTREAM;
if ((inf->fieldIndex==(u32) -1) && (inf->fieldType==SVG_String_datatype)) {
char *str = *(SVG_String*)inf->field_ptr;
if (com->tag == GF_SG_LSR_REPLACE) {
GF_DOMText *t = ((SVG_Element*)com->node)->children ? (GF_DOMText*) ((SVG_Element*)com->node)->children->node :NULL;
if (t && (t->sgprivate->tag==TAG_DOMText)) {
if (t->textContent) free(t->textContent);
t->textContent = NULL;
if (str) t->textContent = strdup(str);
}
} else {
if (str) gf_dom_add_text_node(com->node, strdup(str));
}
} else {
gf_node_get_field(com->node, inf->fieldIndex, &a);
if (com->tag == GF_SG_LSR_REPLACE) {
e = gf_svg_attributes_copy(&a, &b, 0);
} else {
e = gf_svg_attributes_add(&a, &b, &a, 0);
}
}
gf_node_changed(com->node, &a);
return e;
} else {
return GF_NON_COMPLIANT_BITSTREAM;
}
break;
case GF_SG_LSR_ACTIVATE:
gf_node_activate(com->node);
break;
case GF_SG_LSR_DEACTIVATE:
gf_node_deactivate(com->node);
gf_node_changed(com->node, NULL);
break;
#endif
default:
return GF_NOT_SUPPORTED;
}
if (e) return e;
if (com->scripts_to_load) {
while (gf_list_count(com->scripts_to_load)) {
GF_Node *script = (GF_Node *)gf_list_get(com->scripts_to_load, 0);
gf_list_rem(com->scripts_to_load, 0);
gf_sg_script_load(script);
}
gf_list_del(com->scripts_to_load);
com->scripts_to_load = NULL;
}
return GF_OK;
}