Cryptomatte: Data structure in compositor node

This changes the way how the mattes are stored in the compositor node. This used to
be a single string what was decoded/encoded when needed. The new data structure
stores all entries in `CryptomatteEntry` and is converted to the old `matte_id`
property on the fly.

This is done for some future changes in the workflow where a more structured
approach leads to less confusing and easier to read code.

1 files changed, 11 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_node_types.h b/source/blender/makesdna/DNA_node_types.h
index 8e463a8b406..f6ceb2b8e6a 100644
--- a/source/blender/makesdna/DNA_node_types.h
+++ b/source/blender/makesdna/DNA_node_types.h
@@ -1052,10 +1052,20 @@ typedef struct NodeSunBeams {
   float ray_length;
 } NodeSunBeams;
 
+typedef struct CryptomatteEntry {
+  struct CryptomatteEntry *next, *prev;
+  float encoded_hash;
+  /** MAX_NAME. */
+  char name[64];
+  char _pad[4];
+} CryptomatteEntry;
+
 typedef struct NodeCryptomatte {
   float add[3];
   float remove[3];
-  char *matte_id;
+  char *matte_id DNA_DEPRECATED;
+  /* Contains `CryptomatteEntry`. */
+  ListBase entries;
   int num_inputs;
   char _pad[4];
 } NodeCryptomatte;