C# Class Universe.ClientStack.UniverseTerrainCompressor

Datei anzeigen Open project: Virtual-Universe/Virtual-Universe

Public Methods

Method	Description
CreateLandPacket ( short heightmap, int x, int y, byte type, int regionSizeX, int regionSizeY ) : LayerDataPacket	Creates a LayerData packet for compressed land data given a full simulator heightmap and an array of indices of patches to compress
CreateLayerDataPacket ( TerrainPatch patches, byte type, int regionSizeX, int regionSizeY ) : LayerDataPacket
CreatePatch ( BitPack output, float patchData, int x, int y, int regionSizeX, int regionSizeY ) : void
CreatePatchFromHeightmap ( BitPack output, short heightmap, int x, int y, int regionSizeX, int regionSizeY ) : void	Add a patch of terrain to a BitPacker
DecodePatch ( int patches, BitPack bitpack, TerrainPatch header, int size ) : void
DecodePatchHeader ( BitPack bitpack ) : TerrainPatch.Header
DecompressPatch ( int patches, TerrainPatch header, TerrainPatch group ) : float[]

Private Methods

Method	Description
BuildCopyMatrix16 ( ) : void
BuildDequantizeTable16 ( ) : void
BuildQuantizeTable16 ( ) : void
CompressPatch ( float patchData, TerrainPatch header, int prequant, int &wbits ) : int[]
CompressPatch ( short heightmap, int patchX, int patchY, TerrainPatch header, int prequant, int regionSizeX, int regionSizeY, int &wbits ) : int[]
DCTColumn16 ( float linein, int lineout, int column ) : void
DCTColumn16Wbits ( float linein, int lineout, int column, int wbits, int maxwbits ) : int
DCTLine16 ( float linein, float lineout, int line ) : void
EncodePatch ( BitPack output, int patch, int postquant, int wbits ) : void
EncodePatchHeader ( BitPack output, TerrainPatch header, int patch, int regionSizeX, int regionSizeY, int wbits ) : int
IDCTColumn16 ( float linein, float lineout, int column ) : void
IDCTLine16 ( float linein, float lineout, int line ) : void
PrescanPatch ( float patch ) : TerrainPatch.Header
PrescanPatch ( short heightmap, int patchX, int patchY, int regionSizeX, int regionSizeY ) : TerrainPatch.Header
SetupCosines16 ( ) : void
UniverseTerrainCompressor ( ) : System

Method Details

CreateLandPacket() public static method

Creates a LayerData packet for compressed land data given a full simulator heightmap and an array of indices of patches to compress

public static CreateLandPacket ( short heightmap, int x, int y, byte type, int regionSizeX, int regionSizeY ) : LayerDataPacket
heightmap	short	/// A 256 * 256 array of floating point values /// specifying the height at each meter in the simulator ///
x	int	/// Array of indexes in the 16x16 grid of patches /// for this simulator. For example if 1 and 17 are specified, patches /// x=1,y=0 and x=1,y=1 are sent ///
y	int	/// Array of indexes in the 16x16 grid of patches /// for this simulator. For example if 1 and 17 are specified, patches /// x=1,y=0 and x=1,y=1 are sent ///
type	byte
regionSizeX	int
regionSizeY	int
return	LayerDataPacket

CreateLayerDataPacket() public static method

public static CreateLayerDataPacket ( TerrainPatch patches, byte type, int regionSizeX, int regionSizeY ) : LayerDataPacket
patches	TerrainPatch
type	byte
regionSizeX	int
regionSizeY	int
return	LayerDataPacket

CreatePatch() public static method

public static CreatePatch ( BitPack output, float patchData, int x, int y, int regionSizeX, int regionSizeY ) : void
output	BitPack
patchData	float
x	int
y	int
regionSizeX	int
regionSizeY	int
return	void

CreatePatchFromHeightmap() public static method

Add a patch of terrain to a BitPacker

public static CreatePatchFromHeightmap ( BitPack output, short heightmap, int x, int y, int regionSizeX, int regionSizeY ) : void
output	BitPack	BitPacker to write the patch to
heightmap	short	/// Heightmap of the simulator, must be a 256 * /// 256 float array ///
x	int	/// X offset of the patch to create, valid values are /// from 0 to 15 ///
y	int	/// Y offset of the patch to create, valid values are /// from 0 to 15 ///
regionSizeX	int
regionSizeY	int
return	void

DecodePatch() public static method

public static DecodePatch ( int patches, BitPack bitpack, TerrainPatch header, int size ) : void
patches	int
bitpack	BitPack
header	TerrainPatch
size	int
return	void

DecodePatchHeader() public static method

public static DecodePatchHeader ( BitPack bitpack ) : TerrainPatch.Header
bitpack	BitPack
return	TerrainPatch.Header

DecompressPatch() public static method

public static DecompressPatch ( int patches, TerrainPatch header, TerrainPatch group ) : float[]
patches	int
header	TerrainPatch
group	TerrainPatch
return	float[]