675 lines
23 KiB
C#
675 lines
23 KiB
C#
// Proprietary code of Avination Virtual Limited
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// (c) 2012 Melanie Thielker, Leal Duarte
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//
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using System;
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using System.IO;
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using System.Collections;
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using System.Collections.Generic;
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using System.Text;
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using OpenMetaverse;
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using OpenMetaverse.StructuredData;
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using OpenSim.Framework;
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using OpenSim.Region.Framework;
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using OpenSim.Region.Framework.Scenes;
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using OpenSim.Framework.Capabilities;
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using ComponentAce.Compression.Libs.zlib;
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using OSDArray = OpenMetaverse.StructuredData.OSDArray;
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using OSDMap = OpenMetaverse.StructuredData.OSDMap;
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namespace OpenSim.Region.ClientStack.Linden
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{
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public struct ModelPrimLimits
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{
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}
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public class ModelCost
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{
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// upload fee defaults
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// fees are normalized to 1.0
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// this parameters scale them to basic cost ( so 1.0 translates to 10 )
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public float ModelMeshCostFactor = 0f; //Free
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public float ModelMinCostFactor = 0f; // Free
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//public float ModelMeshCostFactor = 1.0f; // scale total cost relative to basic (excluding textures)
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//public float ModelMinCostFactor = 0.5f; // minimum total model free excluding textures
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public float ModelTextureCostFactor = 1.00f; // keep full price because texture price
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// is based on it's storage needs not on usability
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// itens costs in normalized values
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// ie will be multiplied by basicCost and factors above
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const float primCreationCost = 0.002f; // extra cost for each prim creation overhead
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// weigthed size to normalized cost
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const float bytecost = 1e-5f;
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// mesh upload fees based on compressed data sizes
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// several data sections are counted more that once
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// to promote user optimization
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// following parameters control how many extra times they are added
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// to global size.
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// LOD meshs
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const float medSizeWth = 1f; // 2x
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const float lowSizeWth = 1.5f; // 2.5x
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const float lowestSizeWth = 2f; // 3x
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// favor potencially physical optimized meshs versus automatic decomposition
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const float physMeshSizeWth = 6f; // counts 7x
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const float physHullSizeWth = 8f; // counts 9x
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// stream cost area factors
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// more or less like SL
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const float highLodFactor = 17.36f;
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const float midLodFactor = 277.78f;
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const float lowLodFactor = 1111.11f;
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// physics cost is below, identical to SL, assuming shape type convex
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// server cost is below identical to SL assuming non scripted non physical object
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// internal
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const int bytesPerCoord = 6; // 3 coords, 2 bytes per each
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// control prims dimensions
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public float PrimScaleMin = 0.001f;
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public float NonPhysicalPrimScaleMax = 256f;
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public float PhysicalPrimScaleMax = 10f;
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public int ObjectLinkedPartsMax = 512;
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// storage for a single mesh asset cost parameters
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private class ameshCostParam
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{
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// LOD sizes for size dependent streaming cost
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public int highLODSize;
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public int medLODSize;
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public int lowLODSize;
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public int lowestLODSize;
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// normalized fee based on compressed data sizes
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public float costFee;
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// physics cost
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public float physicsCost;
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}
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// calculates a mesh model costs
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// returns false on error, with a reason on parameter error
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// resources input LLSD request
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// basicCost input region assets upload cost
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// totalcost returns model total upload fee
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// meshcostdata returns detailed costs for viewer
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public bool MeshModelCost(LLSDAssetResource resources, int basicCost, out int totalcost,
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LLSDAssetUploadResponseData meshcostdata, out string error, ref string warning)
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{
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totalcost = 0;
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error = string.Empty;
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if (resources == null ||
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resources.instance_list == null ||
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resources.instance_list.Array.Count == 0)
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{
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error = "missing model information.";
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return false;
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}
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int numberInstances = resources.instance_list.Array.Count;
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if( numberInstances > ObjectLinkedPartsMax )
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{
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error = "Model whould have more than " + ObjectLinkedPartsMax.ToString() + " linked prims";
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return false;
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}
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meshcostdata.model_streaming_cost = 0.0;
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meshcostdata.simulation_cost = 0.0;
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meshcostdata.physics_cost = 0.0;
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meshcostdata.resource_cost = 0.0;
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meshcostdata.upload_price_breakdown.mesh_instance = 0;
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meshcostdata.upload_price_breakdown.mesh_physics = 0;
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meshcostdata.upload_price_breakdown.mesh_streaming = 0;
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meshcostdata.upload_price_breakdown.model = 0;
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int itmp;
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// textures cost
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if (resources.texture_list != null && resources.texture_list.Array.Count > 0)
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{
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float textures_cost = (float)(resources.texture_list.Array.Count * basicCost);
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textures_cost *= ModelTextureCostFactor;
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itmp = (int)(textures_cost + 0.5f); // round
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meshcostdata.upload_price_breakdown.texture = itmp;
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totalcost += itmp;
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}
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// meshs assets cost
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float meshsfee = 0;
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int numberMeshs = 0;
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bool haveMeshs = false;
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List<ameshCostParam> meshsCosts = new List<ameshCostParam>();
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if (resources.mesh_list != null && resources.mesh_list.Array.Count > 0)
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{
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numberMeshs = resources.mesh_list.Array.Count;
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for (int i = 0; i < numberMeshs; i++)
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{
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ameshCostParam curCost = new ameshCostParam();
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byte[] data = (byte[])resources.mesh_list.Array[i];
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if (!MeshCost(data, curCost, out error))
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{
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return false;
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}
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meshsCosts.Add(curCost);
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meshsfee += curCost.costFee;
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}
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haveMeshs = true;
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}
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// instances (prims) cost
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int mesh;
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int skipedSmall = 0;
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for (int i = 0; i < numberInstances; i++)
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{
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Hashtable inst = (Hashtable)resources.instance_list.Array[i];
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ArrayList ascale = (ArrayList)inst["scale"];
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Vector3 scale;
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double tmp;
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tmp = (double)ascale[0];
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scale.X = (float)tmp;
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tmp = (double)ascale[1];
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scale.Y = (float)tmp;
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tmp = (double)ascale[2];
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scale.Z = (float)tmp;
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if (scale.X < PrimScaleMin || scale.Y < PrimScaleMin || scale.Z < PrimScaleMin)
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{
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skipedSmall++;
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continue;
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}
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if (scale.X > NonPhysicalPrimScaleMax || scale.Y > NonPhysicalPrimScaleMax || scale.Z > NonPhysicalPrimScaleMax)
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{
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error = "Model contains parts with sides larger than " + NonPhysicalPrimScaleMax.ToString() + "m. Please ajust scale";
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return false;
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}
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if (haveMeshs && inst.ContainsKey("mesh"))
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{
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mesh = (int)inst["mesh"];
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if (mesh >= numberMeshs)
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{
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error = "Incoerent model information.";
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return false;
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}
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// streamming cost
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float sqdiam = scale.LengthSquared();
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ameshCostParam curCost = meshsCosts[mesh];
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float mesh_streaming = streamingCost(curCost, sqdiam);
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meshcostdata.model_streaming_cost += mesh_streaming;
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meshcostdata.physics_cost += curCost.physicsCost;
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}
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else // instance as no mesh ??
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{
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// to do later if needed
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meshcostdata.model_streaming_cost += 0.5f;
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meshcostdata.physics_cost += 1.0f;
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}
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// assume unscripted and static prim server cost
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meshcostdata.simulation_cost += 0.5f;
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// charge for prims creation
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meshsfee += primCreationCost;
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}
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if (skipedSmall > 0)
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{
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if (skipedSmall > numberInstances / 2)
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{
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error = "Model contains too many prims smaller than " + PrimScaleMin.ToString() +
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"m minimum allowed size. Please check scalling";
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return false;
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}
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else
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warning += skipedSmall.ToString() + " of the requested " +numberInstances.ToString() +
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" model prims will not upload because they are smaller than " + PrimScaleMin.ToString() +
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"m minimum allowed size. Please check scalling ";
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}
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if (meshcostdata.physics_cost <= meshcostdata.model_streaming_cost)
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meshcostdata.resource_cost = meshcostdata.model_streaming_cost;
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else
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meshcostdata.resource_cost = meshcostdata.physics_cost;
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if (meshcostdata.resource_cost < meshcostdata.simulation_cost)
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meshcostdata.resource_cost = meshcostdata.simulation_cost;
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// scale cost
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// at this point a cost of 1.0 whould mean basic cost
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meshsfee *= ModelMeshCostFactor;
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if (meshsfee < ModelMinCostFactor)
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meshsfee = ModelMinCostFactor;
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// actually scale it to basic cost
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meshsfee *= (float)basicCost;
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meshsfee += 0.5f; // rounding
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totalcost += (int)meshsfee;
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// breakdown prices
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// don't seem to be in use so removed code for now
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return true;
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}
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// single mesh asset cost
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private bool MeshCost(byte[] data, ameshCostParam cost, out string error)
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{
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cost.highLODSize = 0;
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cost.medLODSize = 0;
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cost.lowLODSize = 0;
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cost.lowestLODSize = 0;
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cost.physicsCost = 0.0f;
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cost.costFee = 0.0f;
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error = string.Empty;
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if (data == null || data.Length == 0)
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{
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error = "Missing model information.";
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return false;
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}
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OSD meshOsd = null;
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int start = 0;
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error = "Invalid model data";
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using (MemoryStream ms = new MemoryStream(data))
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{
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try
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{
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OSD osd = OSDParser.DeserializeLLSDBinary(ms);
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if (osd is OSDMap)
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meshOsd = (OSDMap)osd;
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else
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return false;
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}
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catch (Exception e)
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{
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return false;
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}
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start = (int)ms.Position;
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}
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OSDMap map = (OSDMap)meshOsd;
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OSDMap tmpmap;
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int highlod_size = 0;
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int medlod_size = 0;
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int lowlod_size = 0;
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int lowestlod_size = 0;
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int skin_size = 0;
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int hulls_size = 0;
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int phys_nhulls;
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int phys_hullsvertices = 0;
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int physmesh_size = 0;
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int phys_ntriangles = 0;
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int submesh_offset = -1;
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if (map.ContainsKey("physics_convex"))
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{
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tmpmap = (OSDMap)map["physics_convex"];
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if (tmpmap.ContainsKey("offset"))
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submesh_offset = tmpmap["offset"].AsInteger() + start;
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if (tmpmap.ContainsKey("size"))
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hulls_size = tmpmap["size"].AsInteger();
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}
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if (submesh_offset < 0 || hulls_size == 0)
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{
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error = "Missing physics_convex block";
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return false;
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}
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if (!hulls(data, submesh_offset, hulls_size, out phys_hullsvertices, out phys_nhulls))
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{
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error = "Bad physics_convex block";
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return false;
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}
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submesh_offset = -1;
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// only look for LOD meshs sizes
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if (map.ContainsKey("high_lod"))
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{
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tmpmap = (OSDMap)map["high_lod"];
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// see at least if there is a offset for this one
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if (tmpmap.ContainsKey("offset"))
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submesh_offset = tmpmap["offset"].AsInteger() + start;
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if (tmpmap.ContainsKey("size"))
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highlod_size = tmpmap["size"].AsInteger();
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}
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if (submesh_offset < 0 || highlod_size <= 0)
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{
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error = "Missing high_lod block";
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return false;
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}
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bool haveprev = true;
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if (map.ContainsKey("medium_lod"))
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{
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tmpmap = (OSDMap)map["medium_lod"];
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if (tmpmap.ContainsKey("size"))
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medlod_size = tmpmap["size"].AsInteger();
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else
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haveprev = false;
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}
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if (haveprev && map.ContainsKey("low_lod"))
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{
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tmpmap = (OSDMap)map["low_lod"];
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if (tmpmap.ContainsKey("size"))
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lowlod_size = tmpmap["size"].AsInteger();
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else
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haveprev = false;
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}
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if (haveprev && map.ContainsKey("lowest_lod"))
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{
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tmpmap = (OSDMap)map["lowest_lod"];
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if (tmpmap.ContainsKey("size"))
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lowestlod_size = tmpmap["size"].AsInteger();
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}
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if (map.ContainsKey("skin"))
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{
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tmpmap = (OSDMap)map["skin"];
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if (tmpmap.ContainsKey("size"))
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skin_size = tmpmap["size"].AsInteger();
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}
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cost.highLODSize = highlod_size;
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cost.medLODSize = medlod_size;
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cost.lowLODSize = lowlod_size;
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cost.lowestLODSize = lowestlod_size;
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submesh_offset = -1;
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tmpmap = null;
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if(map.ContainsKey("physics_mesh"))
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tmpmap = (OSDMap)map["physics_mesh"];
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else if (map.ContainsKey("physics_shape")) // old naming
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tmpmap = (OSDMap)map["physics_shape"];
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if(tmpmap != null)
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{
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if (tmpmap.ContainsKey("offset"))
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submesh_offset = tmpmap["offset"].AsInteger() + start;
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if (tmpmap.ContainsKey("size"))
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physmesh_size = tmpmap["size"].AsInteger();
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if (submesh_offset >= 0 || physmesh_size > 0)
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{
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if (!submesh(data, submesh_offset, physmesh_size, out phys_ntriangles))
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{
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error = "Model data parsing error";
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return false;
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}
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}
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}
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// upload is done in convex shape type so only one hull
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phys_hullsvertices++;
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cost.physicsCost = 0.04f * phys_hullsvertices;
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float sfee;
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sfee = data.Length; // start with total compressed data size
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// penalize lod meshs that should be more builder optimized
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sfee += medSizeWth * medlod_size;
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sfee += lowSizeWth * lowlod_size;
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sfee += lowestSizeWth * lowlod_size;
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// physics
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// favor potencial optimized meshs versus automatic decomposition
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if (physmesh_size != 0)
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sfee += physMeshSizeWth * (physmesh_size + hulls_size / 4); // reduce cost of mandatory convex hull
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else
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sfee += physHullSizeWth * hulls_size;
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// bytes to money
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sfee *= bytecost;
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cost.costFee = sfee;
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return true;
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}
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// parses a LOD or physics mesh component
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private bool submesh(byte[] data, int offset, int size, out int ntriangles)
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{
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ntriangles = 0;
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OSD decodedMeshOsd = new OSD();
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byte[] meshBytes = new byte[size];
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System.Buffer.BlockCopy(data, offset, meshBytes, 0, size);
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try
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{
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using (MemoryStream inMs = new MemoryStream(meshBytes))
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{
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using (MemoryStream outMs = new MemoryStream())
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{
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using (ZOutputStream zOut = new ZOutputStream(outMs))
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{
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byte[] readBuffer = new byte[4096];
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int readLen = 0;
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while ((readLen = inMs.Read(readBuffer, 0, readBuffer.Length)) > 0)
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{
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zOut.Write(readBuffer, 0, readLen);
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}
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zOut.Flush();
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outMs.Seek(0, SeekOrigin.Begin);
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byte[] decompressedBuf = outMs.GetBuffer();
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decodedMeshOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
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}
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}
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}
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}
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catch (Exception e)
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{
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return false;
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}
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OSDArray decodedMeshOsdArray = null;
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if ((!decodedMeshOsd is OSDArray))
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return false;
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byte[] dummy;
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decodedMeshOsdArray = (OSDArray)decodedMeshOsd;
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foreach (OSD subMeshOsd in decodedMeshOsdArray)
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{
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if (subMeshOsd is OSDMap)
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{
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OSDMap subtmpmap = (OSDMap)subMeshOsd;
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if (subtmpmap.ContainsKey("NoGeometry") && ((OSDBoolean)subtmpmap["NoGeometry"]))
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continue;
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if (!subtmpmap.ContainsKey("Position"))
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return false;
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if (subtmpmap.ContainsKey("TriangleList"))
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{
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dummy = subtmpmap["TriangleList"].AsBinary();
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ntriangles += dummy.Length / bytesPerCoord;
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}
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else
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return false;
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}
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}
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return true;
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}
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// parses convex hulls component
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private bool hulls(byte[] data, int offset, int size, out int nvertices, out int nhulls)
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{
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nvertices = 0;
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nhulls = 1;
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OSD decodedMeshOsd = new OSD();
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byte[] meshBytes = new byte[size];
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System.Buffer.BlockCopy(data, offset, meshBytes, 0, size);
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try
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{
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using (MemoryStream inMs = new MemoryStream(meshBytes))
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{
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using (MemoryStream outMs = new MemoryStream())
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{
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using (ZOutputStream zOut = new ZOutputStream(outMs))
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{
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byte[] readBuffer = new byte[4096];
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int readLen = 0;
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while ((readLen = inMs.Read(readBuffer, 0, readBuffer.Length)) > 0)
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{
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zOut.Write(readBuffer, 0, readLen);
|
|
}
|
|
zOut.Flush();
|
|
outMs.Seek(0, SeekOrigin.Begin);
|
|
|
|
byte[] decompressedBuf = outMs.GetBuffer();
|
|
decodedMeshOsd = OSDParser.DeserializeLLSDBinary(decompressedBuf);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
OSDMap cmap = (OSDMap)decodedMeshOsd;
|
|
if (cmap == null)
|
|
return false;
|
|
|
|
byte[] dummy;
|
|
|
|
// must have one of this
|
|
if (cmap.ContainsKey("BoundingVerts"))
|
|
{
|
|
dummy = cmap["BoundingVerts"].AsBinary();
|
|
nvertices = dummy.Length / bytesPerCoord;
|
|
}
|
|
else
|
|
return false;
|
|
|
|
/* upload is done with convex shape type
|
|
if (cmap.ContainsKey("HullList"))
|
|
{
|
|
dummy = cmap["HullList"].AsBinary();
|
|
nhulls += dummy.Length;
|
|
}
|
|
|
|
|
|
if (cmap.ContainsKey("Positions"))
|
|
{
|
|
dummy = cmap["Positions"].AsBinary();
|
|
nvertices = dummy.Length / bytesPerCoord;
|
|
}
|
|
*/
|
|
|
|
return true;
|
|
}
|
|
|
|
// returns streaming cost from on mesh LODs sizes in curCost and square of prim size length
|
|
private float streamingCost(ameshCostParam curCost, float sqdiam)
|
|
{
|
|
// compute efective areas
|
|
float ma = 262144f;
|
|
|
|
float mh = sqdiam * highLodFactor;
|
|
if (mh > ma)
|
|
mh = ma;
|
|
float mm = sqdiam * midLodFactor;
|
|
if (mm > ma)
|
|
mm = ma;
|
|
|
|
float ml = sqdiam * lowLodFactor;
|
|
if (ml > ma)
|
|
ml = ma;
|
|
|
|
float mlst = ma;
|
|
|
|
mlst -= ml;
|
|
ml -= mm;
|
|
mm -= mh;
|
|
|
|
if (mlst < 1.0f)
|
|
mlst = 1.0f;
|
|
if (ml < 1.0f)
|
|
ml = 1.0f;
|
|
if (mm < 1.0f)
|
|
mm = 1.0f;
|
|
if (mh < 1.0f)
|
|
mh = 1.0f;
|
|
|
|
ma = mlst + ml + mm + mh;
|
|
|
|
// get LODs compressed sizes
|
|
// giving 384 bytes bonus
|
|
int lst = curCost.lowestLODSize - 384;
|
|
int l = curCost.lowLODSize - 384;
|
|
int m = curCost.medLODSize - 384;
|
|
int h = curCost.highLODSize - 384;
|
|
|
|
// use previus higher LOD size on missing ones
|
|
if (m <= 0)
|
|
m = h;
|
|
if (l <= 0)
|
|
l = m;
|
|
if (lst <= 0)
|
|
lst = l;
|
|
|
|
// force minumum sizes
|
|
if (lst < 16)
|
|
lst = 16;
|
|
if (l < 16)
|
|
l = 16;
|
|
if (m < 16)
|
|
m = 16;
|
|
if (h < 16)
|
|
h = 16;
|
|
|
|
// compute cost weighted by relative effective areas
|
|
float cost = (float)lst * mlst + (float)l * ml + (float)m * mm + (float)h * mh;
|
|
cost /= ma;
|
|
|
|
cost *= 0.004f; // overall tunning parameter
|
|
|
|
return cost;
|
|
}
|
|
}
|
|
}
|