From db4f8d129887cd4fdd5603918590b3c940191882 Mon Sep 17 00:00:00 2001
From: Dahlia Trimble
Date: Fri, 29 May 2009 02:46:35 +0000
Subject: Experimental decoded sculpt map caching

---
 .../Region/Framework/Scenes/SceneObjectGroup.cs    |  8 ++-
 OpenSim/Region/Framework/Scenes/SceneObjectPart.cs |  2 +-
 OpenSim/Region/Physics/Meshing/Meshmerizer.cs      | 65 ++++++++++++++++------
 3 files changed, 55 insertions(+), 20 deletions(-)

diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
index e0a50a1..a60ae83 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectGroup.cs
@@ -2967,8 +2967,12 @@ namespace OpenSim.Region.Framework.Scenes
                         {
                             if (part.Shape.SculptEntry && part.Shape.SculptTexture != UUID.Zero)
                             {
-                                m_scene.AssetService.Get(
-                                    part.Shape.SculptTexture.ToString(), part, AssetReceived); 
+                                // check if a previously decoded sculpt map has been cached
+                                if (File.Exists(System.IO.Path.Combine("j2kDecodeCache", "smap_" + part.Shape.SculptTexture.ToString())))
+                                    part.SculptTextureCallback(part.Shape.SculptTexture, null);
+                                else
+                                    m_scene.AssetService.Get(
+                                        part.Shape.SculptTexture.ToString(), part, AssetReceived);
                             }
                         }
                     }
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
index 719b028..7065d2f 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPart.cs
@@ -2268,7 +2268,7 @@ if (m_shape != null) {
         {
             if (m_shape.SculptEntry)
             {
-                if (texture != null)
+                //if (texture != null) // null could mean a cached sculpt map has been found
                 {
                     m_shape.SculptData = texture.Data;
                     if (PhysActor != null)
diff --git a/OpenSim/Region/Physics/Meshing/Meshmerizer.cs b/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
index 3e14fc4..21f922f 100644
--- a/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
+++ b/OpenSim/Region/Physics/Meshing/Meshmerizer.cs
@@ -37,6 +37,7 @@ using System.Drawing.Imaging;
 using PrimMesher;
 using log4net;
 using System.Reflection;
+using System.IO;
 
 namespace OpenSim.Region.Physics.Meshing
 {
@@ -70,6 +71,8 @@ namespace OpenSim.Region.Physics.Meshing
         private const string baseDir = null; //"rawFiles";
 #endif
 
+        private string decodedScultMapPath = "j2kDecodeCache";
+
         private float minSizeForComplexMesh = 0.2f; // prims with all dimensions smaller than this will have a bounding box mesh
 
 
@@ -176,34 +179,62 @@ namespace OpenSim.Region.Physics.Meshing
             List<Face> faces;
 
             Image idata = null;
+            string decodedSculptFileName = "";
 
             if (primShape.SculptEntry)
             {
                 if (primShape.SculptData.Length == 0)
                     return null;
 
-                try
-                {
-                    ManagedImage managedImage;  // we never use this
-                    OpenJPEG.DecodeToImage(primShape.SculptData, out managedImage, out idata);
-                    
-                }
-                catch (DllNotFoundException)
-                {
-                    m_log.Error("[PHYSICS]: OpenJpeg is not installed correctly on this system. Physics Proxy generation failed.  Often times this is because of an old version of GLIBC.  You must have version 2.4 or above!");
-                    return null;
-                }
-                catch (IndexOutOfRangeException)
+                if (primShape.SculptTexture != null)
                 {
-                    m_log.Error("[PHYSICS]: OpenJpeg was unable to decode this.   Physics Proxy generation failed");
-                    return null;
+                    decodedSculptFileName = System.IO.Path.Combine(decodedScultMapPath, "smap_" + primShape.SculptTexture.ToString());
+                    try
+                    {
+                        if (File.Exists(decodedSculptFileName))
+                        {
+                            idata = Image.FromFile(decodedSculptFileName);
+                        }
+                    }
+                    catch (Exception e)
+                    {
+                        m_log.Error("[SCULPT]: unable to load cached sculpt map " + decodedSculptFileName + " " + e.Message);
+                        
+                    }
+                    if (idata != null)
+                        m_log.Debug("[SCULPT]: loaded cached map asset for map ID: " + primShape.SculptTexture.ToString());
                 }
-                catch (Exception)
+
+                if (idata == null)
                 {
-                    m_log.Error("[PHYSICS]: Unable to generate a Sculpty physics proxy.  Sculpty texture decode failed!");
-                    return null;
+                    try
+                    {
+                        ManagedImage managedImage;  // we never use this
+                        OpenJPEG.DecodeToImage(primShape.SculptData, out managedImage, out idata);
+
+                        //if (File.Exists(System.IO.Path.GetDirectoryName(decodedScultMapPath)))
+                        try { idata.Save(decodedSculptFileName, ImageFormat.MemoryBmp); }
+                        catch (Exception e) { m_log.Error("[SCULPT]: unable to cache sculpt map " + decodedSculptFileName + " " + e.Message); }
+                    }
+                    catch (DllNotFoundException)
+                    {
+                        m_log.Error("[PHYSICS]: OpenJpeg is not installed correctly on this system. Physics Proxy generation failed.  Often times this is because of an old version of GLIBC.  You must have version 2.4 or above!");
+                        return null;
+                    }
+                    catch (IndexOutOfRangeException)
+                    {
+                        m_log.Error("[PHYSICS]: OpenJpeg was unable to decode this.   Physics Proxy generation failed");
+                        return null;
+                    }
+                    catch (Exception)
+                    {
+                        m_log.Error("[PHYSICS]: Unable to generate a Sculpty physics proxy.  Sculpty texture decode failed!");
+                        return null;
+                    }
                 }
 
+
+
                 PrimMesher.SculptMesh.SculptType sculptType;
                 switch ((OpenMetaverse.SculptType)primShape.SculptType)
                 {
-- 
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