TerrClipMapImageSource Class Reference #include <terrClipMapImageSource.h> Inheritance diagram for TerrClipMapImageSource: [legend]List of all members. Public Member Functions   TerrClipMapImageSource (GBitmap *bmp, F32 offset) virtual  ~TerrClipMapImageSource () virtual const U32  getMipLevelCount () const   Number of mip levels. Used to compensate for varied image source depths. virtual void  setInterestCenter (const Point2I &origin, const U32 radius)   Set a new interest center for this image source. virtual bool  isDataAvailable (const U32 mipLevel, const RectI &region) const   True if the data for the specified mip level and region is available. virtual void  copyBits (const U32 mipLevel, const ClipMap::ClipStackEntry *cse, const RectI &srcRegion, U8 *bits, const U32 pitch, const U32 expandonecomponent)   Copy bits from source into a locked texture buffer. virtual bool  isTiling () const   If true, this image source tiles itself infinitely; if the image source is tiling then the clipmap can also be tiling. virtual F32  texelOffset () const   This is used to deal with geometry that wants texels to be at vertices vs. Public Attributes GBitmap *  mBitmap Private Attributes F32  texOffset Constructor & Destructor Documentation TerrClipMapImageSource::TerrClipMapImageSource ( GBitmap *  bmp, F32  offset   ) virtual TerrClipMapImageSource::~TerrClipMapImageSource (  )  [virtual] Member Function Documentation virtual const U32 TerrClipMapImageSource::getMipLevelCount (  )  const [virtual] Number of mip levels. Used to compensate for varied image source depths. Implements IClipMapImageSource. virtual void TerrClipMapImageSource::setInterestCenter ( const Point2I &  origin, const U32  radius   ) [virtual] Set a new interest center for this image source. This gives the source important cues for paging of content. Implements IClipMapImageSource. virtual bool TerrClipMapImageSource::isDataAvailable ( const U32  mipLevel, const RectI &  region   ) const [virtual] True if the data for the specified mip level and region is available. Implements IClipMapImageSource. virtual void TerrClipMapImageSource::copyBits ( const U32  mipLevel, const ClipMap::ClipStackEntry *  cse, const RectI &  srcRegion, U8 *  bits, const U32  pitch, const U32  expandonecomponent   ) [virtual] Copy bits from source into a locked texture buffer. Parameters: mipLevel  What mip level of the texture? cse  Information about the clip stack layer we're uploading to. Can be NULL. srcRegion  Region in pixels on this mip level to copy from. bits  Pointer to beginning of locked buffer. pitch  Stride in bytes from start of one row to start of next. Implements IClipMapImageSource. virtual bool TerrClipMapImageSource::isTiling (  )  const [virtual] If true, this image source tiles itself infinitely; if the image source is tiling then the clipmap can also be tiling. Specifically this means that the source can update a rectangle from any location in image-space as long as its extents are no bigger than the reported size of the image source. Implements IClipMapImageSource. virtual F32 TerrClipMapImageSource::texelOffset (  )  const [virtual] This is used to deal with geometry that wants texels to be at vertices vs. geometry that wants texels to be in the center of the quad/triangle. Return 0 for centering, and 0.5 for vertex based. Implements IClipMapImageSource. Member Data Documentation GBitmap* TerrClipMapImageSource::mBitmap F32 TerrClipMapImageSource::texOffset [private]

© GarageGames.com Home Back to Top

© GarageGames.com Home Back to Top