Minor optimization for strlen and memcpy calls for reading blend files

Summary:
This commit removes ~10000 strlen calls and ~100000 memcpy calls in blender (profiled with blender --background), ~10000 memcpy calls in makesdna.

There is no need to create null-terminated strings for atoi, because it converts only the initial portion of the string anyway.
Also it was noticed that DNA_elem_array_size and arraysize functions work only with full strings, so there is no point to calculate strlen.

Reviewers: campbellbarton

Reviewed By: campbellbarton

Differential Revision: http://developer.blender.org/D105

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_genfile.h b/source/blender/makesdna/DNA_genfile.h
index 96d71288c62..9a6c7144692 100644
--- a/source/blender/makesdna/DNA_genfile.h
+++ b/source/blender/makesdna/DNA_genfile.h
@@ -68,7 +68,7 @@ void DNA_struct_switch_endian(struct SDNA *oldsdna, int oldSDNAnr, char *data);
 char *DNA_struct_get_compareflags(struct SDNA *sdna, struct SDNA *newsdna);
 void *DNA_struct_reconstruct(struct SDNA *newsdna, struct SDNA *oldsdna, char *compflags, int oldSDNAnr, int blocks, void *data);
 
-int DNA_elem_array_size(const char *astr, int len);
+int DNA_elem_array_size(const char *str);
 int DNA_elem_offset(struct SDNA *sdna, const char *stype, const char *vartype, const char *name);
 
 bool DNA_struct_elem_find(struct SDNA *sdna, const char *stype, const char *vartype, const char *name);