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83 lines
3.3 KiB
C++
83 lines
3.3 KiB
C++
//
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// VoxelTree.h
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// hifi
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//
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// Created by Stephen Birarda on 3/13/13.
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// Copyright (c) 2013 High Fidelity, Inc. All rights reserved.
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//
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#ifndef __hifi__VoxelTree__
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#define __hifi__VoxelTree__
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#include "SimpleMovingAverage.h"
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#include "ViewFrustum.h"
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#include "VoxelNode.h"
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#include "VoxelNodeBag.h"
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#include "MarkerNode.h"
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// Callback function, for recuseTreeWithOperation
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typedef bool (*RecurseVoxelTreeOperation)(VoxelNode* node, bool down, void* extraData);
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class VoxelTree {
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public:
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// when a voxel is created in the tree (object new'd)
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long voxelsCreated;
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// when a voxel is colored/set in the tree (object may have already existed)
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long voxelsColored;
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long voxelsBytesRead;
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SimpleMovingAverage voxelsCreatedStats;
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SimpleMovingAverage voxelsColoredStats;
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SimpleMovingAverage voxelsBytesReadStats;
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VoxelTree();
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~VoxelTree();
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VoxelNode *rootNode;
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int leavesWrittenToBitstream;
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void eraseAllVoxels();
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void processRemoveVoxelBitstream(unsigned char * bitstream, int bufferSizeBytes);
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void readBitstreamToTree(unsigned char * bitstream, int bufferSizeBytes);
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void readCodeColorBufferToTree(unsigned char *codeColorBuffer);
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void deleteVoxelCodeFromTree(unsigned char *codeBuffer);
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void printTreeForDebugging(VoxelNode *startNode);
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void reaverageVoxelColors(VoxelNode *startNode);
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unsigned char * loadBitstreamBuffer(unsigned char*& bitstreamBuffer,
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VoxelNode* currentVoxelNode,
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MarkerNode* currentMarkerNode,
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const glm::vec3& agentPosition,
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float thisNodePosition[3],
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const ViewFrustum& viewFrustum,
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bool viewFrustumCulling,
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unsigned char* octalCode = NULL);
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void loadVoxelsFile(const char* fileName, bool wantColorRandomizer);
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void createSphere(float r,float xc, float yc, float zc, float s, bool solid, bool wantColorRandomizer);
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void recurseTreeWithOperation(RecurseVoxelTreeOperation operation, void* extraData=NULL);
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int encodeTreeBitstream(VoxelNode* node, const ViewFrustum& viewFrustum,
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unsigned char* outputBuffer, int availableBytes,
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VoxelNodeBag& bag);
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void searchForColoredNodes(VoxelNode* node, const ViewFrustum& viewFrustum, VoxelNodeBag& bag);
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private:
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int encodeTreeBitstreamRecursion(VoxelNode* node, const ViewFrustum& viewFrustum,
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unsigned char* outputBuffer, int availableBytes,
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VoxelNodeBag& bag) const;
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void searchForColoredNodesRecursion(VoxelNode* node, const ViewFrustum& viewFrustum, VoxelNodeBag& bag);
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void recurseNodeWithOperation(VoxelNode* node, RecurseVoxelTreeOperation operation, void* extraData);
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VoxelNode* nodeForOctalCode(VoxelNode* ancestorNode, unsigned char* needleCode, VoxelNode** parentOfFoundNode);
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VoxelNode* createMissingNode(VoxelNode* lastParentNode, unsigned char* deepestCodeToCreate);
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int readNodeData(VoxelNode *destinationNode, unsigned char* nodeData, int bufferSizeBytes);
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};
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int boundaryDistanceForRenderLevel(unsigned int renderLevel);
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#endif /* defined(__hifi__VoxelTree__) */
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