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|
/**
* @file llspatialpartition.h
* @brief LLSpatialGroup header file including definitions for supporting functions
*
* $LicenseInfo:firstyear=2003&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LL_LLSPATIALPARTITION_H
#define LL_LLSPATIALPARTITION_H
#define SG_MIN_DIST_RATIO 0.00001f
#include "lldrawable.h"
#include "lloctree.h"
#include "llpointer.h"
#include "llrefcount.h"
#include "llvertexbuffer.h"
#include "llgltypes.h"
#include "llcubemap.h"
#include "lldrawpool.h"
#include "llface.h"
#include "llviewercamera.h"
#include "llvector4a.h"
#include <queue>
#define SG_STATE_INHERIT_MASK (OCCLUDED)
#define SG_INITIAL_STATE_MASK (DIRTY | GEOM_DIRTY)
class LLSpatialPartition;
class LLSpatialBridge;
class LLSpatialGroup;
class LLTextureAtlas;
class LLTextureAtlasSlot;
S32 AABBSphereIntersect(const LLVector4a& min, const LLVector4a& max, const LLVector3 &origin, const F32 &rad);
S32 AABBSphereIntersectR2(const LLVector4a& min, const LLVector4a& max, const LLVector3 &origin, const F32 &radius_squared);
S32 AABBSphereIntersect(const LLVector3& min, const LLVector3& max, const LLVector3 &origin, const F32 &rad);
S32 AABBSphereIntersectR2(const LLVector3& min, const LLVector3& max, const LLVector3 &origin, const F32 &radius_squared);
void pushVerts(LLFace* face, U32 mask);
// get index buffer for binary encoded axis vertex buffer given a box at center being viewed by given camera
U32 get_box_fan_indices(LLCamera* camera, const LLVector4a& center);
U8* get_box_fan_indices_ptr(LLCamera* camera, const LLVector4a& center);
class LLDrawInfo : public LLRefCount
{
protected:
~LLDrawInfo();
public:
void* operator new(size_t size)
{
return ll_aligned_malloc_16(size);
}
void operator delete(void* ptr)
{
ll_aligned_free_16(ptr);
}
LLDrawInfo(const LLDrawInfo& rhs)
{
*this = rhs;
}
const LLDrawInfo& operator=(const LLDrawInfo& rhs)
{
llerrs << "Illegal operation!" << llendl;
return *this;
}
LLDrawInfo(U16 start, U16 end, U32 count, U32 offset,
LLViewerTexture* image, LLVertexBuffer* buffer,
BOOL fullbright = FALSE, U8 bump = 0, BOOL particle = FALSE, F32 part_size = 0);
void validate();
LLVector4a mExtents[2];
LLPointer<LLVertexBuffer> mVertexBuffer;
LLPointer<LLViewerTexture> mTexture;
std::vector<LLPointer<LLViewerTexture> > mTextureList;
S32 mDebugColor;
const LLMatrix4* mTextureMatrix;
const LLMatrix4* mModelMatrix;
U16 mStart;
U16 mEnd;
U32 mCount;
U32 mOffset;
BOOL mFullbright;
U8 mBump;
BOOL mParticle;
F32 mPartSize;
F32 mVSize;
LLSpatialGroup* mGroup;
LL_ALIGN_16(LLFace* mFace); //associated face
F32 mDistance;
U32 mDrawMode;
struct CompareTexture
{
bool operator()(const LLDrawInfo& lhs, const LLDrawInfo& rhs)
{
return lhs.mTexture > rhs.mTexture;
}
};
struct CompareTexturePtr
{ //sort by texture
bool operator()(const LLPointer<LLDrawInfo>& lhs, const LLPointer<LLDrawInfo>& rhs)
{
// sort by pointer, sort NULL down to the end
return lhs.get() != rhs.get()
&& (lhs.isNull() || (rhs.notNull() && lhs->mTexture.get() > rhs->mTexture.get()));
}
};
struct CompareVertexBuffer
{ //sort by texture
bool operator()(const LLPointer<LLDrawInfo>& lhs, const LLPointer<LLDrawInfo>& rhs)
{
// sort by pointer, sort NULL down to the end
return lhs.get() != rhs.get()
&& (lhs.isNull() || (rhs.notNull() && lhs->mVertexBuffer.get() > rhs->mVertexBuffer.get()));
}
};
struct CompareTexturePtrMatrix
{
bool operator()(const LLPointer<LLDrawInfo>& lhs, const LLPointer<LLDrawInfo>& rhs)
{
return lhs.get() != rhs.get()
&& (lhs.isNull() || (rhs.notNull() && (lhs->mTexture.get() > rhs->mTexture.get() ||
(lhs->mTexture.get() == rhs->mTexture.get() && lhs->mModelMatrix > rhs->mModelMatrix))));
}
};
struct CompareMatrixTexturePtr
{
bool operator()(const LLPointer<LLDrawInfo>& lhs, const LLPointer<LLDrawInfo>& rhs)
{
return lhs.get() != rhs.get()
&& (lhs.isNull() || (rhs.notNull() && (lhs->mModelMatrix > rhs->mModelMatrix ||
(lhs->mModelMatrix == rhs->mModelMatrix && lhs->mTexture.get() > rhs->mTexture.get()))));
}
};
struct CompareBump
{
bool operator()(const LLPointer<LLDrawInfo>& lhs, const LLPointer<LLDrawInfo>& rhs)
{
// sort by mBump value, sort NULL down to the end
return lhs.get() != rhs.get()
&& (lhs.isNull() || (rhs.notNull() && lhs->mBump > rhs->mBump));
}
};
struct CompareDistanceGreater
{
bool operator()(const LLPointer<LLDrawInfo>& lhs, const LLPointer<LLDrawInfo>& rhs)
{
// sort by mBump value, sort NULL down to the end
return lhs.get() != rhs.get()
&& (lhs.isNull() || (rhs.notNull() && lhs->mDistance > rhs->mDistance));
}
};
};
LL_ALIGN_PREFIX(16)
class LLSpatialGroup : public LLOctreeListener<LLDrawable>
{
friend class LLSpatialPartition;
friend class LLOctreeStateCheck;
public:
LLSpatialGroup(const LLSpatialGroup& rhs)
{
*this = rhs;
}
void* operator new(size_t size)
{
return ll_aligned_malloc_16(size);
}
void operator delete(void* ptr)
{
ll_aligned_free_16(ptr);
}
const LLSpatialGroup& operator=(const LLSpatialGroup& rhs)
{
llerrs << "Illegal operation!" << llendl;
return *this;
}
static std::set<GLuint> sPendingQueries; //pending occlusion queries
static U32 sNodeCount;
static BOOL sNoDelete; //deletion of spatial groups and draw info not allowed if TRUE
typedef std::vector<LLPointer<LLSpatialGroup> > sg_vector_t;
typedef std::vector<LLPointer<LLSpatialBridge> > bridge_list_t;
typedef std::vector<LLPointer<LLDrawInfo> > drawmap_elem_t;
typedef std::map<U32, drawmap_elem_t > draw_map_t;
typedef std::vector<LLPointer<LLVertexBuffer> > buffer_list_t;
typedef std::map<LLFace*, buffer_list_t> buffer_texture_map_t;
typedef std::map<U32, buffer_texture_map_t> buffer_map_t;
typedef LLOctreeListener<LLDrawable> BaseType;
typedef LLOctreeListener<LLDrawable> OctreeListener;
typedef LLTreeNode<LLDrawable> TreeNode;
typedef LLOctreeNode<LLDrawable> OctreeNode;
typedef LLOctreeRoot<LLDrawable> OctreeRoot;
typedef LLOctreeTraveler<LLDrawable> OctreeTraveler;
typedef LLOctreeNode<LLDrawable>::element_iter element_iter;
typedef LLOctreeNode<LLDrawable>::element_list element_list;
struct CompareDistanceGreater
{
bool operator()(const LLSpatialGroup* const& lhs, const LLSpatialGroup* const& rhs)
{
return lhs->mDistance > rhs->mDistance;
}
};
struct CompareUpdateUrgency
{
bool operator()(const LLPointer<LLSpatialGroup> lhs, const LLPointer<LLSpatialGroup> rhs)
{
return lhs->getUpdateUrgency() > rhs->getUpdateUrgency();
}
};
struct CompareDepthGreater
{
bool operator()(const LLSpatialGroup* const& lhs, const LLSpatialGroup* const& rhs)
{
return lhs->mDepth > rhs->mDepth;
}
};
typedef enum
{
OCCLUDED = 0x00010000,
QUERY_PENDING = 0x00020000,
ACTIVE_OCCLUSION = 0x00040000,
DISCARD_QUERY = 0x00080000,
EARLY_FAIL = 0x00100000,
} eOcclusionState;
typedef enum
{
DEAD = 0x00000001,
DIRTY = 0x00000002,
OBJECT_DIRTY = 0x00000004,
GEOM_DIRTY = 0x00000008,
ALPHA_DIRTY = 0x00000010,
SKIP_FRUSTUM_CHECK = 0x00000020,
IN_IMAGE_QUEUE = 0x00000040,
IMAGE_DIRTY = 0x00000080,
OCCLUSION_DIRTY = 0x00000100,
MESH_DIRTY = 0x00000200,
NEW_DRAWINFO = 0x00000400,
IN_BUILD_Q1 = 0x00000800,
IN_BUILD_Q2 = 0x00001000,
STATE_MASK = 0x0000FFFF,
} eSpatialState;
typedef enum
{
STATE_MODE_SINGLE = 0, //set one node
STATE_MODE_BRANCH, //set entire branch
STATE_MODE_DIFF, //set entire branch as long as current state is different
STATE_MODE_ALL_CAMERAS, //used for occlusion state, set state for all cameras
} eSetStateMode;
LLSpatialGroup(OctreeNode* node, LLSpatialPartition* part);
BOOL isHUDGroup() ;
BOOL isDead() { return isState(DEAD); }
BOOL isState(U32 state) const;
BOOL isOcclusionState(U32 state) const { return mOcclusionState[LLViewerCamera::sCurCameraID] & state ? TRUE : FALSE; }
U32 getState() { return mState; }
void setState(U32 state);
void clearState(U32 state);
void clearDrawMap();
void validate();
void checkStates();
void validateDrawMap();
void setState(U32 state, S32 mode);
void clearState(U32 state, S32 mode);
void setOcclusionState(U32 state, S32 mode = STATE_MODE_SINGLE);
void clearOcclusionState(U32 state, S32 mode = STATE_MODE_SINGLE);
LLSpatialGroup* getParent();
BOOL addObject(LLDrawable *drawablep, BOOL add_all = FALSE, BOOL from_octree = FALSE);
BOOL removeObject(LLDrawable *drawablep, BOOL from_octree = FALSE);
BOOL updateInGroup(LLDrawable *drawablep, BOOL immediate = FALSE); // Update position if it's in the group
BOOL isVisible() const;
BOOL isRecentlyVisible() const;
void setVisible();
void shift(const LLVector4a &offset);
BOOL boundObjects(BOOL empty, LLVector4a& newMin, LLVector4a& newMax);
void unbound();
BOOL rebound();
void buildOcclusion(); //rebuild mOcclusionVerts
void checkOcclusion(); //read back last occlusion query (if any)
void doOcclusion(LLCamera* camera); //issue occlusion query
void destroyGL();
void updateDistance(LLCamera& camera);
BOOL needsUpdate();
F32 getUpdateUrgency() const;
BOOL changeLOD();
void rebuildGeom();
void rebuildMesh();
void dirtyGeom() { setState(GEOM_DIRTY); }
void dirtyMesh() { setState(MESH_DIRTY); }
element_list& getData() { return mOctreeNode->getData(); }
U32 getElementCount() const { return mOctreeNode->getElementCount(); }
void drawObjectBox(LLColor4 col);
//LISTENER FUNCTIONS
virtual void handleInsertion(const TreeNode* node, LLDrawable* face);
virtual void handleRemoval(const TreeNode* node, LLDrawable* face);
virtual void handleDestruction(const TreeNode* node);
virtual void handleStateChange(const TreeNode* node);
virtual void handleChildAddition(const OctreeNode* parent, OctreeNode* child);
virtual void handleChildRemoval(const OctreeNode* parent, const OctreeNode* child);
//-------------------
//for atlas use
//-------------------
//atlas
void setCurUpdatingTime(U32 t) {mCurUpdatingTime = t ;}
U32 getCurUpdatingTime() const { return mCurUpdatingTime ;}
void setCurUpdatingSlot(LLTextureAtlasSlot* slotp) ;
LLTextureAtlasSlot* getCurUpdatingSlot(LLViewerTexture* imagep, S8 recursive_level = 3) ;
void setCurUpdatingTexture(LLViewerTexture* tex){ mCurUpdatingTexture = tex ;}
LLViewerTexture* getCurUpdatingTexture() const { return mCurUpdatingTexture ;}
BOOL hasAtlas(LLTextureAtlas* atlasp) ;
LLTextureAtlas* getAtlas(S8 ncomponents, S8 to_be_reserved, S8 recursive_level = 3) ;
void addAtlas(LLTextureAtlas* atlasp, S8 recursive_level = 3) ;
void removeAtlas(LLTextureAtlas* atlasp, BOOL remove_group = TRUE, S8 recursive_level = 3) ;
void clearAtlasList() ;
public:
typedef enum
{
BOUNDS = 0,
EXTENTS = 2,
OBJECT_BOUNDS = 4,
OBJECT_EXTENTS = 6,
VIEW_ANGLE = 8,
LAST_VIEW_ANGLE = 9,
V4_COUNT = 10
} eV4Index;
LL_ALIGN_16(LLVector4a mBounds[2]); // bounding box (center, size) of this node and all its children (tight fit to objects)
LL_ALIGN_16(LLVector4a mExtents[2]); // extents (min, max) of this node and all its children
LL_ALIGN_16(LLVector4a mObjectExtents[2]); // extents (min, max) of objects in this node
LL_ALIGN_16(LLVector4a mObjectBounds[2]); // bounding box (center, size) of objects in this node
LL_ALIGN_16(LLVector4a mViewAngle);
LL_ALIGN_16(LLVector4a mLastUpdateViewAngle);
private:
U32 mCurUpdatingTime ;
//do not make the below two to use LLPointer
//because mCurUpdatingTime invalidates them automatically.
LLTextureAtlasSlot* mCurUpdatingSlotp ;
LLViewerTexture* mCurUpdatingTexture ;
std::vector< std::list<LLTextureAtlas*> > mAtlasList ;
//-------------------
//end for atlas use
//-------------------
protected:
virtual ~LLSpatialGroup();
U32 mState;
U32 mOcclusionState[LLViewerCamera::NUM_CAMERAS];
S32 mLODHash;
static S32 sLODSeed;
public:
bridge_list_t mBridgeList;
buffer_map_t mBufferMap; //used by volume buffers to attempt to reuse vertex buffers
F32 mBuilt;
OctreeNode* mOctreeNode;
LLSpatialPartition* mSpatialPartition;
LLPointer<LLVertexBuffer> mVertexBuffer;
LLPointer<LLVertexBuffer> mOcclusionVerts;
GLuint mOcclusionQuery[LLViewerCamera::NUM_CAMERAS];
U32 mBufferUsage;
draw_map_t mDrawMap;
S32 mVisible[LLViewerCamera::NUM_CAMERAS];
F32 mDistance;
F32 mDepth;
F32 mLastUpdateDistance;
F32 mLastUpdateTime;
F32 mPixelArea;
F32 mRadius;
} LL_ALIGN_POSTFIX(64);
class LLGeometryManager
{
public:
std::vector<LLFace*> mFaceList;
virtual ~LLGeometryManager() { }
virtual void rebuildGeom(LLSpatialGroup* group) = 0;
virtual void rebuildMesh(LLSpatialGroup* group) = 0;
virtual void getGeometry(LLSpatialGroup* group) = 0;
virtual void addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32 &index_count);
virtual LLVertexBuffer* createVertexBuffer(U32 type_mask, U32 usage);
};
class LLSpatialPartition: public LLGeometryManager
{
public:
LLSpatialPartition(U32 data_mask, BOOL render_by_group, U32 mBufferUsage);
virtual ~LLSpatialPartition();
LLSpatialGroup *put(LLDrawable *drawablep, BOOL was_visible = FALSE);
BOOL remove(LLDrawable *drawablep, LLSpatialGroup *curp);
LLDrawable* lineSegmentIntersect(const LLVector3& start, const LLVector3& end,
BOOL pick_transparent,
S32* face_hit, // return the face hit
LLVector3* intersection = NULL, // return the intersection point
LLVector2* tex_coord = NULL, // return the texture coordinates of the intersection point
LLVector3* normal = NULL, // return the surface normal at the intersection point
LLVector3* bi_normal = NULL // return the surface bi-normal at the intersection point
);
// If the drawable moves, move it here.
virtual void move(LLDrawable *drawablep, LLSpatialGroup *curp, BOOL immediate = FALSE);
virtual void shift(const LLVector4a &offset);
virtual F32 calcDistance(LLSpatialGroup* group, LLCamera& camera);
virtual F32 calcPixelArea(LLSpatialGroup* group, LLCamera& camera);
virtual void rebuildGeom(LLSpatialGroup* group);
virtual void rebuildMesh(LLSpatialGroup* group);
BOOL visibleObjectsInFrustum(LLCamera& camera);
S32 cull(LLCamera &camera, std::vector<LLDrawable *>* results = NULL, BOOL for_select = FALSE); // Cull on arbitrary frustum
BOOL isVisible(const LLVector3& v);
bool isHUDPartition() ;
virtual LLSpatialBridge* asBridge() { return NULL; }
virtual BOOL isBridge() { return asBridge() != NULL; }
void renderPhysicsShapes();
void renderDebug();
void renderIntersectingBBoxes(LLCamera* camera);
void restoreGL();
void resetVertexBuffers();
BOOL isOcclusionEnabled();
BOOL getVisibleExtents(LLCamera& camera, LLVector3& visMin, LLVector3& visMax);
public:
LLSpatialGroup::OctreeNode* mOctree;
BOOL mOcclusionEnabled; // if TRUE, occlusion culling is performed
BOOL mInfiniteFarClip; // if TRUE, frustum culling ignores far clip plane
U32 mBufferUsage;
const BOOL mRenderByGroup;
U32 mLODSeed;
U32 mLODPeriod; //number of frames between LOD updates for a given spatial group (staggered by mLODSeed)
U32 mVertexDataMask;
F32 mSlopRatio; //percentage distance must change before drawables receive LOD update (default is 0.25);
BOOL mDepthMask; //if TRUE, objects in this partition will be written to depth during alpha rendering
U32 mDrawableType;
U32 mPartitionType;
};
// class for creating bridges between spatial partitions
class LLSpatialBridge : public LLDrawable, public LLSpatialPartition
{
protected:
~LLSpatialBridge();
public:
typedef std::vector<LLPointer<LLSpatialBridge> > bridge_vector_t;
LLSpatialBridge(LLDrawable* root, BOOL render_by_group, U32 data_mask);
virtual BOOL isSpatialBridge() const { return TRUE; }
virtual void updateSpatialExtents();
virtual void updateBinRadius();
virtual void setVisible(LLCamera& camera_in, std::vector<LLDrawable*>* results = NULL, BOOL for_select = FALSE);
virtual void updateDistance(LLCamera& camera_in, bool force_update);
virtual void makeActive();
virtual void move(LLDrawable *drawablep, LLSpatialGroup *curp, BOOL immediate = FALSE);
virtual BOOL updateMove();
virtual void shiftPos(const LLVector4a& vec);
virtual void cleanupReferences();
virtual LLSpatialPartition* asPartition() { return this; }
virtual LLSpatialBridge* asBridge() { return this; }
virtual LLCamera transformCamera(LLCamera& camera);
LLDrawable* mDrawable;
};
class LLCullResult
{
public:
LLCullResult();
typedef std::vector<LLSpatialGroup*> sg_list_t;
typedef std::vector<LLDrawable*> drawable_list_t;
typedef std::vector<LLSpatialBridge*> bridge_list_t;
typedef std::vector<LLDrawInfo*> drawinfo_list_t;
void clear();
sg_list_t::iterator beginVisibleGroups();
sg_list_t::iterator endVisibleGroups();
sg_list_t::iterator beginAlphaGroups();
sg_list_t::iterator endAlphaGroups();
bool hasOcclusionGroups() { return mOcclusionGroupsSize > 0; }
sg_list_t::iterator beginOcclusionGroups();
sg_list_t::iterator endOcclusionGroups();
sg_list_t::iterator beginDrawableGroups();
sg_list_t::iterator endDrawableGroups();
drawable_list_t::iterator beginVisibleList();
drawable_list_t::iterator endVisibleList();
bridge_list_t::iterator beginVisibleBridge();
bridge_list_t::iterator endVisibleBridge();
drawinfo_list_t::iterator beginRenderMap(U32 type);
drawinfo_list_t::iterator endRenderMap(U32 type);
void pushVisibleGroup(LLSpatialGroup* group);
void pushAlphaGroup(LLSpatialGroup* group);
void pushOcclusionGroup(LLSpatialGroup* group);
void pushDrawableGroup(LLSpatialGroup* group);
void pushDrawable(LLDrawable* drawable);
void pushBridge(LLSpatialBridge* bridge);
void pushDrawInfo(U32 type, LLDrawInfo* draw_info);
U32 getVisibleGroupsSize() { return mVisibleGroupsSize; }
U32 getAlphaGroupsSize() { return mAlphaGroupsSize; }
U32 getDrawableGroupsSize() { return mDrawableGroupsSize; }
U32 getVisibleListSize() { return mVisibleListSize; }
U32 getVisibleBridgeSize() { return mVisibleBridgeSize; }
U32 getRenderMapSize(U32 type) { return mRenderMapSize[type]; }
void assertDrawMapsEmpty();
private:
U32 mVisibleGroupsSize;
U32 mAlphaGroupsSize;
U32 mOcclusionGroupsSize;
U32 mDrawableGroupsSize;
U32 mVisibleListSize;
U32 mVisibleBridgeSize;
U32 mRenderMapSize[LLRenderPass::NUM_RENDER_TYPES];
sg_list_t mVisibleGroups;
sg_list_t::iterator mVisibleGroupsEnd;
sg_list_t mAlphaGroups;
sg_list_t::iterator mAlphaGroupsEnd;
sg_list_t mOcclusionGroups;
sg_list_t::iterator mOcclusionGroupsEnd;
sg_list_t mDrawableGroups;
sg_list_t::iterator mDrawableGroupsEnd;
drawable_list_t mVisibleList;
drawable_list_t::iterator mVisibleListEnd;
bridge_list_t mVisibleBridge;
bridge_list_t::iterator mVisibleBridgeEnd;
drawinfo_list_t mRenderMap[LLRenderPass::NUM_RENDER_TYPES];
drawinfo_list_t::iterator mRenderMapEnd[LLRenderPass::NUM_RENDER_TYPES];
};
//spatial partition for water (implemented in LLVOWater.cpp)
class LLWaterPartition : public LLSpatialPartition
{
public:
LLWaterPartition();
virtual void getGeometry(LLSpatialGroup* group) { }
virtual void addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32& index_count) { }
};
//spatial partition for hole and edge water (implemented in LLVOWater.cpp)
class LLVoidWaterPartition : public LLWaterPartition
{
public:
LLVoidWaterPartition();
};
//spatial partition for terrain (impelmented in LLVOSurfacePatch.cpp)
class LLTerrainPartition : public LLSpatialPartition
{
public:
LLTerrainPartition();
virtual void getGeometry(LLSpatialGroup* group);
virtual LLVertexBuffer* createVertexBuffer(U32 type_mask, U32 usage);
};
//spatial partition for trees
class LLTreePartition : public LLSpatialPartition
{
public:
LLTreePartition();
virtual void getGeometry(LLSpatialGroup* group) { }
virtual void addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32& index_count) { }
};
//spatial partition for particles (implemented in LLVOPartGroup.cpp)
class LLParticlePartition : public LLSpatialPartition
{
public:
LLParticlePartition();
virtual void getGeometry(LLSpatialGroup* group);
virtual void addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32& index_count);
virtual F32 calcPixelArea(LLSpatialGroup* group, LLCamera& camera);
protected:
U32 mRenderPass;
};
class LLHUDParticlePartition : public LLParticlePartition
{
public:
LLHUDParticlePartition();
};
//spatial partition for grass (implemented in LLVOGrass.cpp)
class LLGrassPartition : public LLParticlePartition
{
public:
LLGrassPartition();
};
//class for wrangling geometry out of volumes (implemented in LLVOVolume.cpp)
class LLVolumeGeometryManager: public LLGeometryManager
{
public:
typedef enum
{
NONE = 0,
BATCH_SORT,
DISTANCE_SORT
} eSortType;
virtual ~LLVolumeGeometryManager() { }
virtual void rebuildGeom(LLSpatialGroup* group);
virtual void rebuildMesh(LLSpatialGroup* group);
virtual void getGeometry(LLSpatialGroup* group);
void genDrawInfo(LLSpatialGroup* group, U32 mask, std::vector<LLFace*>& faces, BOOL distance_sort = FALSE, BOOL batch_textures = FALSE);
void registerFace(LLSpatialGroup* group, LLFace* facep, U32 type);
};
//spatial partition that uses volume geometry manager (implemented in LLVOVolume.cpp)
class LLVolumePartition : public LLSpatialPartition, public LLVolumeGeometryManager
{
public:
LLVolumePartition();
virtual void rebuildGeom(LLSpatialGroup* group) { LLVolumeGeometryManager::rebuildGeom(group); }
virtual void getGeometry(LLSpatialGroup* group) { LLVolumeGeometryManager::getGeometry(group); }
virtual void rebuildMesh(LLSpatialGroup* group) { LLVolumeGeometryManager::rebuildMesh(group); }
virtual void addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32& index_count) { LLVolumeGeometryManager::addGeometryCount(group, vertex_count, index_count); }
};
//spatial bridge that uses volume geometry manager (implemented in LLVOVolume.cpp)
class LLVolumeBridge : public LLSpatialBridge, public LLVolumeGeometryManager
{
public:
LLVolumeBridge(LLDrawable* drawable);
virtual void rebuildGeom(LLSpatialGroup* group) { LLVolumeGeometryManager::rebuildGeom(group); }
virtual void getGeometry(LLSpatialGroup* group) { LLVolumeGeometryManager::getGeometry(group); }
virtual void rebuildMesh(LLSpatialGroup* group) { LLVolumeGeometryManager::rebuildMesh(group); }
virtual void addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32& index_count) { LLVolumeGeometryManager::addGeometryCount(group, vertex_count, index_count); }
};
class LLHUDBridge : public LLVolumeBridge
{
public:
LLHUDBridge(LLDrawable* drawablep);
virtual void shiftPos(const LLVector4a& vec);
virtual F32 calcPixelArea(LLSpatialGroup* group, LLCamera& camera);
};
//spatial partition that holds nothing but spatial bridges
class LLBridgePartition : public LLSpatialPartition
{
public:
LLBridgePartition();
virtual void getGeometry(LLSpatialGroup* group) { }
virtual void addGeometryCount(LLSpatialGroup* group, U32 &vertex_count, U32& index_count) { }
};
class LLHUDPartition : public LLBridgePartition
{
public:
LLHUDPartition();
virtual void shift(const LLVector4a &offset);
};
extern const F32 SG_BOX_SIDE;
extern const F32 SG_BOX_OFFSET;
extern const F32 SG_BOX_RAD;
extern const F32 SG_OBJ_SIDE;
extern const F32 SG_MAX_OBJ_RAD;
#endif //LL_LLSPATIALPARTITION_H
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