From 72a4cf179eed11deffd7de98b3912b672221a5ef Mon Sep 17 00:00:00 2001
From: Adam Johnson <AdamJohnso@gmail.com>
Date: Mon, 3 Sep 2018 20:15:19 -0400
Subject: [PATCH] Add export-time texcache controls

Now you can turn off the texture cache entirely or force a recache of
the entire age... :)
---
 korman/exporter/convert.py    |  4 ++++
 korman/exporter/image.py      |  9 +++++++--
 korman/operators/op_export.py | 11 ++++++++++-
 korman/ui/ui_world.py         |  1 +
 4 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/korman/exporter/convert.py b/korman/exporter/convert.py
index f0647fb..98f1cea 100644
--- a/korman/exporter/convert.py
+++ b/korman/exporter/convert.py
@@ -360,3 +360,7 @@ class Exporter:
             filepath = str(Path(filepath).with_suffix(".ktc"))
             age.texcache_path = filepath
         return filepath
+
+    @property
+    def texcache_method(self):
+        return bpy.context.scene.world.plasma_age.texcache_method
diff --git a/korman/exporter/image.py b/korman/exporter/image.py
index fff107e..908b4d0 100644
--- a/korman/exporter/image.py
+++ b/korman/exporter/image.py
@@ -68,7 +68,7 @@ class ImageCache:
         self._stream_handles = 0
 
     def add_texture(self, key, num_levels, export_size, compression, data):
-        if key.ephemeral:
+        if key.ephemeral or self._exporter().texcache_method == "skip":
             return
         image = _CachedImage()
         image.name = str(key)
@@ -98,7 +98,7 @@ class ImageCache:
             self._read_stream.close()
 
     def get_from_texture(self, texture, compression):
-        if texture.ephemeral:
+        if self._exporter().texcache_method != "use" or texture.ephemeral:
             return None
 
         key = (str(texture), compression)
@@ -123,6 +123,8 @@ class ImageCache:
         return cached_image
 
     def load(self):
+        if self._exporter().texcache_method == "skip":
+            return
         try:
             with self:
                 self._read(self._read_stream)
@@ -223,6 +225,9 @@ class ImageCache:
         return self._exporter().report
 
     def save(self):
+        if self._exporter().texcache_method == "skip":
+            return
+
         # TODO: add a way to preserve unused images for a brief period so we don't toss
         # already cached images that are only removed from the age temporarily...
         self._compact()
diff --git a/korman/operators/op_export.py b/korman/operators/op_export.py
index d06def1..97f2e44 100644
--- a/korman/operators/op_export.py
+++ b/korman/operators/op_export.py
@@ -49,7 +49,15 @@ class ExportOperator(bpy.types.Operator):
                                         "description": "Forces the Blender System Console open during the export",
                                         "default": True}),
 
-        "texcache_path": (StringProperty, {"name": "Texture Cache"}),
+        "texcache_path": (StringProperty, {"name": "Texture Cache Path",
+                                           "description": "Texture Cache Filepath"}),
+
+        "texcache_method": (EnumProperty, {"name": "Texture Cache",
+                                           "description": "Texture Cache Settings",
+                                           "items": [("skip", "Don't Use Texture Cache", "The texture cache is neither used nor updated."),
+                                                     ("use", "Use Texture Cache", "Use (and update, if needed) cached textures."),
+                                                     ("rebuild", "Rebuild Texture Cache", "Rebuilds the texture cache from scratch.")],
+                                           "default": "use"}),
     }
 
     # This wigs out and very bad things happen if it's not directly on the operator...
@@ -68,6 +76,7 @@ class ExportOperator(bpy.types.Operator):
 
         # The crazy mess we're doing with props on the fly means we have to explicitly draw them :(
         layout.prop(self, "version")
+        layout.prop(age, "texcache_method", text="")
         layout.prop(age, "bake_lighting")
         row = layout.row()
         row.enabled = ConsoleToggler.is_platform_supported()
diff --git a/korman/ui/ui_world.py b/korman/ui/ui_world.py
index 333dbbc..6cac4e4 100644
--- a/korman/ui/ui_world.py
+++ b/korman/ui/ui_world.py
@@ -133,6 +133,7 @@ class PlasmaAgePanel(AgeButtonsPanel, bpy.types.Panel):
 
         col = split.column()
         col.label("Export Settings:")
+        col.prop(age, "texcache_method", text="")
         col.prop(age, "bake_lighting")
         cons_ui = col.column()
         cons_ui.enabled = ConsoleToggler.is_platform_supported()