python access to RNA arrays.

coords = array.array('f', [0.0]) * len(me.verts) * 3
m.verts.foreach_get('co', coords)

the reverse works with set also.
currently works for python buffers or sequences (slower)

Quick speed test with 1,179,654 verts.

*foreach_get*
list 0.377
array 0.032
py 10.29

*foreach_set*
list 0.184
array 0.028
py 9.79


where python was done like this...
----
 i= 0
 for v in m.verts:
   co = v.co
   l[i] = co[0]; l[i+1] = co[0]; l[i+2] = co[0]
   i+=3
----

some of the error checking here needs to be cleaned up to account for different invalid bad inputs.

1 files changed, 17 insertions, 8 deletions

diff --git a/source/blender/makesrna/intern/rna_access.c b/source/blender/makesrna/intern/rna_access.c
index d3e4780c7fd..36adc9a7c10 100644
--- a/source/blender/makesrna/intern/rna_access.c
+++ b/source/blender/makesrna/intern/rna_access.c
@@ -1580,6 +1580,17 @@ int RNA_property_collection_raw_array(PointerRNA *ptr, PropertyRNA *prop, Proper
 	} \
 }
 
+int RNA_raw_type_sizeof(RawPropertyType type)
+{
+	switch(type) {
+		case PROP_RAW_CHAR: return sizeof(char);
+		case PROP_RAW_SHORT: return sizeof(short);
+		case PROP_RAW_INT: return sizeof(int);
+		case PROP_RAW_FLOAT: return sizeof(float);
+		case PROP_RAW_DOUBLE: return sizeof(double);
+	}
+}
+
 static int rna_raw_access(ReportList *reports, PointerRNA *ptr, PropertyRNA *prop, char *propname, void *inarray, RawPropertyType intype, int inlen, int set)
 {
 	StructRNA *ptype;
@@ -1630,14 +1641,7 @@ static int rna_raw_access(ReportList *reports, PointerRNA *ptr, PropertyRNA *pro
 				int a, size;
 
 				itemlen= (itemlen == 0)? 1: itemlen;
-
-				switch(out.type) {
-					case PROP_RAW_CHAR: size= sizeof(char)*itemlen; break;
-					case PROP_RAW_SHORT: size= sizeof(short)*itemlen; break;
-					case PROP_RAW_INT: size= sizeof(int)*itemlen; break;
-					case PROP_RAW_FLOAT: size= sizeof(float)*itemlen; break;
-					case PROP_RAW_DOUBLE: size= sizeof(double)*itemlen; break;
-				}
+				size= RNA_raw_type_sizeof(out.type) * itemlen;
 
 				for(a=0; a<out.len; a++) {
 					if(set) memcpy(outp, inp, size);
@@ -1819,6 +1823,11 @@ static int rna_raw_access(ReportList *reports, PointerRNA *ptr, PropertyRNA *pro
 	}
 }
 
+RawPropertyType RNA_property_raw_type(PropertyRNA *prop)
+{
+	return prop->rawtype;
+}
+
 int RNA_property_collection_raw_get(ReportList *reports, PointerRNA *ptr, PropertyRNA *prop, char *propname, void *array, RawPropertyType type, int len)
 {
 	return rna_raw_access(reports, ptr, prop, propname, array, type, len, 0);