Campbell Barton
358e07f447
Delay loading all DATA sections of the blend file until they're needed. Loading all data-blocks caused high peak memory usage especially with libraries - since a lot of data may exist which isn't used directly. In one test (spring project: 10_010_A.anim.blend), peaked at ~12.5gig, dropping back to ~2.5gig once loaded. With this change peaks memory usage reaches ~2.7gig while loading. Besides this there are some minor gains from not having to read data from the file-system and we can skip an alloc + memcpy reading data written with the same version of Blender.