osg::TextureManager Class Reference

#include <OSGTextureManager.h>

List of all members.

Public Types
enum	TextureMode { TM_3D = 0, TM_2D, TM_2D_Multi, NUM_TEXTURE_MODES }
	Texture mode. More...
enum	BrickingMode { BRICK_SUBDIVIDE_ON_TEXTURE_MEMORY = 0, BRICK_SUBDIVIDE_STATIC, BRICK_SUBDIVIDE_ON_BRICK_SIZE, NUM_BRICKING_MODES }
	Bricking mode. More...
Public Member Functions
	TextureManager (DVRVolume *volume)
	! --- CLASS TextureManager ------------------------------------------------
	~TextureManager (void)
Int32	registerTexture (ImagePtr image, UInt32 internalFormat, UInt32 externalFormat, bool doBricking=1, Int32 textureStage0=0, Int32 textureStage1=-1)
	Register texture.
void	unregisterTexture (Int32 id)
	Remove texture.
void	reloadTexture (Int32 id, DrawActionBase *action)
	Reload texture.
void	clearTextures (ChunkMaterialPtr material=NullFC)
	Clear all registered textures.
void	buildTextures (ChunkMaterialPtr material, DVRVolume *volume, TextureMode mode=TM_3D)
	Create texture chunks for registered textures.
Brick *	sortBricks (DrawActionBase *da, Matrix modelMat, Vec3f eyePoint, DVRVolume *volume, TextureMode mode)
	Return sorted brick list.
void	dump (UInt32 uiIndent=0, const BitVector bvFlags=0) const
	Output the instance for debug purposes.
Static Private Member Functions
static Vec3f	calcBrickSubdivision (Int32 resX, Int32 resY, Int32 resZ, Int32 dataSize, DVRVolume *volume)
	Calculate bricking.
Private Attributes
TextureSet	_registeredTextures
DVRVolume *	_parent
BrickSet *	_brickSets
Friends
struct	BrickSet

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Detailed Description

Definition at line 61 of file OSGTextureManager.h.

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Member Enumeration Documentation

enum osg::TextureManager::TextureMode

Enumerator: TM_3D  TM_2D  TM_2D_Multi  NUM_TEXTURE_MODES  Definition at line 66 of file OSGTextureManager.h. { TM_3D = 0, TM_2D, TM_2D_Multi, NUM_TEXTURE_MODES };

enum osg::TextureManager::BrickingMode

Enumerator: BRICK_SUBDIVIDE_ON_TEXTURE_MEMORY  BRICK_SUBDIVIDE_STATIC  BRICK_SUBDIVIDE_ON_BRICK_SIZE  NUM_BRICKING_MODES  Definition at line 75 of file OSGTextureManager.h. { BRICK_SUBDIVIDE_ON_TEXTURE_MEMORY = 0, BRICK_SUBDIVIDE_STATIC, BRICK_SUBDIVIDE_ON_BRICK_SIZE, NUM_BRICKING_MODES };

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Constructor & Destructor Documentation

osg::TextureManager::TextureManager (  DVRVolume *  volume  )

Definition at line 54 of file OSGTextureManager.cpp. References _brickSets, and _parent. : _registeredTextures( ), _parent (NULL), _brickSets (NULL) { _parent = volume; _brickSets = new BrickSet[3]; }

osg::TextureManager::~TextureManager (  void   )

Definition at line 63 of file OSGTextureManager.cpp. References _brickSets, and clearTextures(). { clearTextures(); delete [] _brickSets; }

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Member Function Documentation

Int32 osg::TextureManager::registerTexture (  ImagePtr  image, UInt32  internalFormat, UInt32  externalFormat, bool  doBricking = 1, Int32  textureStage0 = 0, Int32  textureStage1 = -1 )

! TODO: ! make shure the user specifies two texture stages for mt-slab mode ! (e.g. accept only textures with two stages set once two stages have ! been specified). Definition at line 71 of file OSGTextureManager.cpp. References _registeredTextures, FDEBUG, and SWARNING. Referenced by osg::DVRSimpleShader::initialize(), osg::DVRSimpleLUTShader::initialize(), osg::DVRMtexLUTShader::initialize(), and osg::DVRIsoShader::initialize(). { FDEBUG(("TextureManager::registerTexture stage0: %d - stage1: %d\n", textureStage0, textureStage1)); // check for unique texture stages bool unique = true; for(UInt32 i = 0; i < _registeredTextures.size(); i++) { if(textureStage0 == _registeredTextures[i]->_textureStage0 || textureStage0 == _registeredTextures[i]->_textureStage1 ) { unique = false; } if((textureStage1 != -1 ) && (textureStage1 == _registeredTextures[i]->_textureStage0 || textureStage1 == _registeredTextures[i]->_textureStage1 ) ) { unique = false; } } if(unique == false) { SWARNING << "TextureManager::registerTexture - " << "ID already in use -> ignoring texture" << std::endl; return -1; } // store record TextureRecord * record = new TextureRecord(image, internalFormat, externalFormat, textureStage0, textureStage1); _registeredTextures.push_back(record); return _registeredTextures.size() - 1; }

void osg::TextureManager::unregisterTexture (  Int32  id  )

Definition at line 126 of file OSGTextureManager.cpp. References _registeredTextures, FDEBUG, and SWARNING. Referenced by osg::DVRSimpleShader::cleanup(), osg::DVRSimpleLUTShader::cleanup(), osg::DVRMtexLUTShader::cleanup(), and osg::DVRIsoShader::cleanup(). { FDEBUG(("TextureManager::unregisterTexture\n")); if((id < 0) || (UInt32(id) > _registeredTextures.size())) { SWARNING << "TextureManager::unregisterTexture - invalid id " << id << std::endl; return; } TextureSet::iterator iter = _registeredTextures.begin(); delete _registeredTextures[id]; _registeredTextures.erase(iter + id); }

void osg::TextureManager::reloadTexture (  Int32  id, DrawActionBase *  action )

Definition at line 147 of file OSGTextureManager.cpp. References _brickSets, _registeredTextures, osg::BrickSet::reloadBrickTextures(), and SWARNING. Referenced by osg::DVRSimpleLUTShader::activate(), and osg::DVRSimpleLUTShader::initialize(). { if((id < 0) || (UInt32(id) > _registeredTextures.size())) { SWARNING << "TextureManager::reloadTexture - invalid id " << id << std::endl; return; } for(UInt32 k = 0; k < 3; k++) { _brickSets[k].reloadBrickTextures( action, _registeredTextures[id]->_textureStage0); _brickSets[k].reloadBrickTextures( action, _registeredTextures[id]->_textureStage1); } }

void osg::TextureManager::clearTextures (  ChunkMaterialPtr  material = NullFC  )

! TODO: destroy created texture chunks - even if material is not known Definition at line 171 of file OSGTextureManager.cpp. References _brickSets, _registeredTextures, osg::BrickSet::clearBrickTextures(), FDEBUG, osg::BrickSet::m_nNumBricks, osg::BrickSet::m_pBricks, and osg::NullFC. Referenced by osg::DVRVolume::draw(), osg::DVRVolume::reload(), and ~TextureManager(). { FDEBUG(("TextureManager::clearTexture\n")); if (material != NullFC) { for(UInt32 k = 0; k < 3; k++) { _brickSets[k].clearBrickTextures(material); delete [] _brickSets[k].m_pBricks; _brickSets[k].m_pBricks = 0; _brickSets[k].m_nNumBricks = 0; } } for(UInt32 i = 0; i < _registeredTextures.size(); i++) { delete _registeredTextures[i]; } _registeredTextures.clear(); }

void osg::TextureManager::buildTextures (  ChunkMaterialPtr  material, DVRVolume *  volume, TextureMode  mode = TM_3D )

Definition at line 200 of file OSGTextureManager.cpp. References _brickSets, _registeredTextures, osg::BrickSet::buildBricks2D(), osg::BrickSet::buildBricks3D(), osg::BrickSet::buildBrickTextures(), calcBrickSubdivision(), DVRVOLUME_PARAMETER, FDEBUG, osg::DVRVolumeBase::getBrickOverlap(), osg::NullFC, SWARNING, TM_2D, TM_2D_Multi, TM_3D, osg::BrickSet::XY, osg::BrickSet::XZ, and osg::BrickSet::YZ. Referenced by osg::DVRVolume::draw(). { FDEBUG(("TextureManager::buildTextures\n")); DVRVolumeTexturePtr vT = DVRVOLUME_PARAMETER(volume, DVRVolumeTexture); if(vT == NullFC) { SWARNING << "TextureManager::buildTextures - No Volume" << std::endl; return; } if(_registeredTextures.size() < 1) { SWARNING << "TextureManager::buildTextures - No registerd textures" << std::endl; return; } switch(textureMode) { case TM_2D_Multi: { // Multi-Texture Slabs Vec3f res = vT->getResolution(); Vec3f brickSizeX(2, res[1], res[2]); Vec3f brickSizeY(res[0], 2, res[2]); Vec3f brickSizeZ(res[0], res[1], 2 ); _brickSets[BrickSet::XY].buildBricks3D(volume, brickSizeZ, 1, BrickSet::XY); _brickSets[BrickSet::XZ].buildBricks3D(volume, brickSizeY, 1, BrickSet::XZ); _brickSets[BrickSet::YZ].buildBricks3D(volume, brickSizeX, 1, BrickSet::YZ); _brickSets[BrickSet::XY].buildBrickTextures( material, _registeredTextures, textureMode); _brickSets[BrickSet::XZ].buildBrickTextures( material, _registeredTextures, textureMode); _brickSets[BrickSet::YZ].buildBrickTextures( material, _registeredTextures, textureMode); break; } case TM_2D: { // Ordinary 2D-Slices _brickSets[BrickSet::XY].buildBricks2D(volume, BrickSet::XY); _brickSets[BrickSet::XZ].buildBricks2D(volume, BrickSet::XZ); _brickSets[BrickSet::YZ].buildBricks2D(volume, BrickSet::YZ); _brickSets[BrickSet::XY].buildBrickTextures( material, _registeredTextures, textureMode); _brickSets[BrickSet::XZ].buildBrickTextures( material, _registeredTextures, textureMode); _brickSets[BrickSet::YZ].buildBrickTextures( material, _registeredTextures, textureMode); break; } default: case TM_3D: { // Ordinary 3D-Bricks Vec3f res = vT->getResolution(); Vec3f brickSubdivision = calcBrickSubdivision(int(res[0]), int(res[1]), int(res[2]), vT->getImage()->getBpp(), volume); Vec3f brickSize(Real32((int)(res[0] / brickSubdivision[0])), Real32((int)(res[1] / brickSubdivision[1])), Real32((int)(res[2] / brickSubdivision[2]))); FDEBUG( ("TextureManager::buildTextures - BrickSubdivision %d %d %d\n", brickSubdivision[0], brickSubdivision[1], brickSubdivision[2])); _brickSets[BrickSet::XY].buildBricks3D(volume, brickSize, volume->getBrickOverlap()); _brickSets[BrickSet::XY].buildBrickTextures( material, _registeredTextures, textureMode); break; } } }

Brick * osg::TextureManager::sortBricks (  DrawActionBase *  da, Matrix  modelMat, Vec3f  eyePoint, DVRVolume *  volume, TextureMode  mode )

Definition at line 415 of file OSGTextureManager.cpp. References _brickSets, FDEBUG, osg::Slicer::getSlicingDirection(), osg::Slicer::SD_X_BACK_TO_FRONT, osg::Slicer::SD_X_FRONT_TO_BACK, osg::Slicer::SD_Y_BACK_TO_FRONT, osg::Slicer::SD_Y_FRONT_TO_BACK, osg::Slicer::SD_Z_BACK_TO_FRONT, osg::Slicer::SD_Z_FRONT_TO_BACK, osg::BrickSet::sortBricks2D(), osg::BrickSet::sortBricks3D(), TM_2D, TM_2D_Multi, osg::BrickSet::XY, osg::BrickSet::XZ, and osg::BrickSet::YZ. Referenced by osg::DVRVolume::draw(). { FDEBUG(("TextureManager::sortBricks\n")); if ((mode == TM_2D) || (mode == TM_2D_Multi)) { // select the right bickset BrickSet::Orientation ori = BrickSet::XY; bool btf = true; switch(Slicer::getSlicingDirection(da,NULL)) { case Slicer::SD_X_FRONT_TO_BACK: ori = BrickSet::YZ; btf = false; break; case Slicer::SD_X_BACK_TO_FRONT: ori = BrickSet::YZ; btf = true; break; case Slicer::SD_Y_FRONT_TO_BACK: ori = BrickSet::XZ; btf = false; break; case Slicer::SD_Y_BACK_TO_FRONT: ori = BrickSet::XZ; btf = true; break; case Slicer::SD_Z_FRONT_TO_BACK: ori = BrickSet::XY; btf = false; break; case Slicer::SD_Z_BACK_TO_FRONT: ori = BrickSet::XY; btf = true; break; default: break; } // btf or ftb? return _brickSets[ori].sortBricks2D(btf); } else { return _brickSets[BrickSet::XY].sortBricks3D(modelMat, eyePoint); } }

void osg::TextureManager::dump (  UInt32  uiIndent = 0, const BitVector  bvFlags = 0 )  const

Definition at line 314 of file OSGTextureManager.cpp. References _registeredTextures, and SLOG. { SLOG << "TextureManager:" << std::endl; for (UInt32 i = 0; i < _registeredTextures.size(); i++) { SLOG << "image: " << _registeredTextures[i]->_image << std::endl; SLOG << "internalFormat: " << _registeredTextures[i]->_internalFormat << std::endl; SLOG << "textureStage0: " << _registeredTextures[i]->_textureStage0 << std::endl; SLOG << "textureStage1: " << _registeredTextures[i]->_textureStage1 << std::endl; } }

Vec3f osg::TextureManager::calcBrickSubdivision (  Int32  resX, Int32  resY, Int32  resZ, Int32  dataSize, DVRVolume *  volume )  [static, private]

Definition at line 333 of file OSGTextureManager.cpp. References BRICK_SUBDIVIDE_ON_BRICK_SIZE, BRICK_SUBDIVIDE_ON_TEXTURE_MEMORY, BRICK_SUBDIVIDE_STATIC, osg::DVRVolumeBase::getBrickingMode(), osg::DVRVolumeBase::getBrickMaxSize(), osg::DVRVolumeBase::getBrickStaticMemoryMB(), osg::DVRVolumeBase::getBrickStaticSubdivision(), and osg::osgceil(). Referenced by buildTextures(). { Int32 mode = volume->getBrickingMode(); Vec3f subdivision(1,1,1); switch (mode) { case BRICK_SUBDIVIDE_STATIC: { subdivision = volume->getBrickStaticSubdivision(); break; } case BRICK_SUBDIVIDE_ON_TEXTURE_MEMORY: { Real32 fMB_available = 1024.0F * 1024.0F * (Real32) volume->getBrickStaticMemoryMB(); Real32 fMB_required = (Real32) (resX * resY * resZ * dataSize); Int32 nNumBricks = (Int32) osgceil(fMB_required / fMB_available); Int32 nRealNumBricks = 1; while(nNumBricks > nRealNumBricks) { if ((resX >= resY) && (resX >= resZ)) { resX /= 2; subdivision[0] *= 2; } else if (resY >= resZ) { resY /= 2; subdivision[1] *= 2; } else { resZ /= 2; subdivision[2] *= 2; } nRealNumBricks = (Int32)(subdivision[0] * subdivision[1] * subdivision[2]); } break; } case BRICK_SUBDIVIDE_ON_BRICK_SIZE: { Vec3f maxSize = volume->getBrickMaxSize(); while(resX > (Int32) maxSize[0]) { resX /= 2; subdivision[0] *= 2; } while(resY > (Int32) maxSize[1]) { resY /= 2; subdivision[1] *= 2; } while(resZ > (Int32) maxSize[2]) { resZ /= 2; subdivision[2] *= 2; } break; } } return subdivision; }

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Friends And Related Function Documentation

friend struct BrickSet [friend]

Definition at line 150 of file OSGTextureManager.h.

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Member Data Documentation

TextureSet osg::TextureManager::_registeredTextures [private]

Definition at line 138 of file OSGTextureManager.h. Referenced by buildTextures(), clearTextures(), dump(), registerTexture(), reloadTexture(), and unregisterTexture().

DVRVolume* osg::TextureManager::_parent [private]

Definition at line 139 of file OSGTextureManager.h. Referenced by TextureManager().

BrickSet* osg::TextureManager::_brickSets [private]

Definition at line 141 of file OSGTextureManager.h. Referenced by buildTextures(), clearTextures(), reloadTexture(), sortBricks(), TextureManager(), and ~TextureManager().

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The documentation for this class was generated from the following files:

• OSGTextureManager.h
• OSGTextureManager.cpp

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