Print done when done.

1 files changed, 882 insertions, 0 deletions

diff --git a/indra/llmath/llvolume.h b/indra/llmath/llvolume.h
new file mode 100644
index 0000000000..cf9ae00f21
--- /dev/null
+++ b/indra/llmath/llvolume.h
@@ -0,0 +1,882 @@
+/** 
+ * @file llvolume.h
+ * @brief LLVolume base class.
+ *
+ * Copyright (c) 2002-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#ifndef LL_LLVOLUME_H
+#define LL_LLVOLUME_H
+
+#include <iostream>
+
+class LLProfileParams;
+class LLPathParams;
+class LLVolumeParams;
+class LLProfile;
+class LLPath;
+class LLVolumeFace;
+class LLVolume;
+
+#include "lldarray.h"
+#include "lluuid.h"
+#include "v4color.h"
+//#include "vmath.h"
+#include "v2math.h"
+#include "v3math.h"
+#include "llquaternion.h"
+#include "llstrider.h"
+#include "v4coloru.h"
+#include "llmemory.h"
+
+//============================================================================
+
+const S32 MIN_DETAIL_FACES = 6;
+const S32 MIN_LOD = 0;
+const S32 MAX_LOD = 3;
+
+// These are defined here but are not enforced at this level,
+// rather they are here for the convenience of code that uses
+// the LLVolume class.
+const F32 MIN_VOLUME_PROFILE_WIDTH 	= 0.05f;
+const F32 MIN_VOLUME_PATH_WIDTH 	= 0.05f;
+
+const F32 CUT_QUANTA   = 0.005f;
+const F32 SCALE_QUANTA = 0.01f;
+const F32 SHEAR_QUANTA = 0.01f;
+const F32 TAPER_QUANTA = 0.01f;
+const F32 REV_QUANTA   = 0.015f;
+
+
+//============================================================================
+
+// useful masks
+const LLPCode LL_PCODE_HOLLOW_MASK 	= 0x80;		// has a thickness
+const LLPCode LL_PCODE_SEGMENT_MASK = 0x40;		// segments (1 angle)
+const LLPCode LL_PCODE_PATCH_MASK 	= 0x20;		// segmented segments (2 angles)
+const LLPCode LL_PCODE_HEMI_MASK 	= 0x10;		// half-primitives get their own type per PR's dictum
+const LLPCode LL_PCODE_BASE_MASK 	= 0x0F;
+
+	// primitive shapes
+const LLPCode	LL_PCODE_CUBE 			= 1;
+const LLPCode	LL_PCODE_PRISM 			= 2;
+const LLPCode	LL_PCODE_TETRAHEDRON 	= 3;
+const LLPCode	LL_PCODE_PYRAMID 		= 4;
+const LLPCode	LL_PCODE_CYLINDER 		= 5;
+const LLPCode	LL_PCODE_CONE 			= 6;
+const LLPCode	LL_PCODE_SPHERE 		= 7;
+const LLPCode	LL_PCODE_TORUS 			= 8;
+const LLPCode	LL_PCODE_VOLUME			= 9;
+
+	// surfaces
+//const LLPCode	LL_PCODE_SURFACE_TRIANGLE 	= 10;
+//const LLPCode	LL_PCODE_SURFACE_SQUARE 	= 11;
+//const LLPCode	LL_PCODE_SURFACE_DISC 		= 12;
+
+const LLPCode	LL_PCODE_APP				= 14; // App specific pcode (for viewer/sim side only objects)
+const LLPCode	LL_PCODE_LEGACY				= 15;
+
+// Pcodes for legacy objects
+//const LLPCode	LL_PCODE_LEGACY_ATOR =				0x10 | LL_PCODE_LEGACY; // ATOR
+const LLPCode	LL_PCODE_LEGACY_AVATAR =			0x20 | LL_PCODE_LEGACY; // PLAYER
+//const LLPCode	LL_PCODE_LEGACY_BIRD =				0x30 | LL_PCODE_LEGACY; // BIRD
+//const LLPCode	LL_PCODE_LEGACY_DEMON =				0x40 | LL_PCODE_LEGACY; // DEMON
+const LLPCode	LL_PCODE_LEGACY_GRASS =				0x50 | LL_PCODE_LEGACY; // GRASS
+const LLPCode	LL_PCODE_TREE_NEW =					0x60 | LL_PCODE_LEGACY; // new trees
+//const LLPCode	LL_PCODE_LEGACY_ORACLE =			0x70 | LL_PCODE_LEGACY; // ORACLE
+const LLPCode	LL_PCODE_LEGACY_PART_SYS =			0x80 | LL_PCODE_LEGACY; // PART_SYS
+const LLPCode	LL_PCODE_LEGACY_ROCK =				0x90 | LL_PCODE_LEGACY; // ROCK
+//const LLPCode	LL_PCODE_LEGACY_SHOT =				0xA0 | LL_PCODE_LEGACY; // BASIC_SHOT
+//const LLPCode	LL_PCODE_LEGACY_SHOT_BIG =			0xB0 | LL_PCODE_LEGACY;
+//const LLPCode	LL_PCODE_LEGACY_SMOKE =				0xC0 | LL_PCODE_LEGACY; // SMOKE
+//const LLPCode	LL_PCODE_LEGACY_SPARK =				0xD0 | LL_PCODE_LEGACY;// SPARK
+const LLPCode	LL_PCODE_LEGACY_TEXT_BUBBLE =		0xE0 | LL_PCODE_LEGACY; // TEXTBUBBLE
+const LLPCode	LL_PCODE_LEGACY_TREE =				0xF0 | LL_PCODE_LEGACY; // TREE
+
+	// hemis
+const LLPCode	LL_PCODE_CYLINDER_HEMI =		LL_PCODE_CYLINDER	| LL_PCODE_HEMI_MASK;
+const LLPCode	LL_PCODE_CONE_HEMI =			LL_PCODE_CONE		| LL_PCODE_HEMI_MASK;
+const LLPCode	LL_PCODE_SPHERE_HEMI =			LL_PCODE_SPHERE		| LL_PCODE_HEMI_MASK;
+const LLPCode	LL_PCODE_TORUS_HEMI =			LL_PCODE_TORUS		| LL_PCODE_HEMI_MASK;
+
+
+// Volumes consist of a profile at the base that is swept around
+// a path to make a volume.
+// The profile code
+const U8	LL_PCODE_PROFILE_MASK		= 0x0f;
+const U8	LL_PCODE_PROFILE_MIN		= 0x00;
+const U8    LL_PCODE_PROFILE_CIRCLE		= 0x00;
+const U8    LL_PCODE_PROFILE_SQUARE		= 0x01;
+const U8	LL_PCODE_PROFILE_ISOTRI		= 0x02;
+const U8    LL_PCODE_PROFILE_EQUALTRI	= 0x03;
+const U8    LL_PCODE_PROFILE_RIGHTTRI	= 0x04;
+const U8	LL_PCODE_PROFILE_CIRCLE_HALF = 0x05;
+const U8	LL_PCODE_PROFILE_MAX		= 0x05;
+
+// Stored in the profile byte
+const U8	LL_PCODE_HOLE_MASK		= 0xf0;
+const U8	LL_PCODE_HOLE_MIN		= 0x00;	  
+const U8	LL_PCODE_HOLE_SAME		= 0x00;		// same as outside profile
+const U8	LL_PCODE_HOLE_CIRCLE	= 0x10;
+const U8	LL_PCODE_HOLE_SQUARE	= 0x20;
+const U8	LL_PCODE_HOLE_TRIANGLE	= 0x30;
+const U8	LL_PCODE_HOLE_MAX		= 0x03;		// min/max needs to be >> 4 of real min/max
+
+const U8    LL_PCODE_PATH_IGNORE    = 0x00;
+const U8	LL_PCODE_PATH_MIN		= 0x01;		// min/max needs to be >> 4 of real min/max
+const U8    LL_PCODE_PATH_LINE      = 0x10;
+const U8    LL_PCODE_PATH_CIRCLE    = 0x20;
+const U8    LL_PCODE_PATH_CIRCLE2   = 0x30;
+const U8    LL_PCODE_PATH_TEST      = 0x40;
+const U8    LL_PCODE_PATH_FLEXIBLE  = 0x80;
+const U8	LL_PCODE_PATH_MAX		= 0x08;
+
+//============================================================================
+
+// face identifiers
+typedef U16 LLFaceID;
+
+const LLFaceID	LL_FACE_PATH_BEGIN		= 0x1 << 0;
+const LLFaceID	LL_FACE_PATH_END		= 0x1 << 1;
+const LLFaceID	LL_FACE_INNER_SIDE		= 0x1 << 2;
+const LLFaceID	LL_FACE_PROFILE_BEGIN	= 0x1 << 3;
+const LLFaceID	LL_FACE_PROFILE_END		= 0x1 << 4;
+const LLFaceID	LL_FACE_OUTER_SIDE_0	= 0x1 << 5;
+const LLFaceID	LL_FACE_OUTER_SIDE_1	= 0x1 << 6;
+const LLFaceID	LL_FACE_OUTER_SIDE_2	= 0x1 << 7;
+const LLFaceID	LL_FACE_OUTER_SIDE_3	= 0x1 << 8;
+
+//============================================================================
+
+class LLProfileParams
+{
+public:
+	LLProfileParams()
+	{
+		mBegin     = 0;
+		mEnd       = 1;
+		mHollow    = 0;
+		mCurveType = LL_PCODE_PROFILE_SQUARE;
+	}
+
+	LLProfileParams(U8 curve, F32 begin, F32 end, F32 hollow)
+		: mCurveType(curve), mBegin(begin), mEnd(end), mHollow(hollow)
+	{
+	}
+
+	LLProfileParams(U8 curve, U8 begin, U8 end, U8 hollow)
+	{
+		mCurveType = curve;
+		F32 temp_f32 = begin * CUT_QUANTA;
+		if (temp_f32 > 1.f)
+		{
+			temp_f32 = 1.f;
+		}
+		mBegin = temp_f32;
+		temp_f32 = end * CUT_QUANTA;
+		if (temp_f32 > 1.f)
+		{
+			temp_f32 = 1.f;
+		}
+		mEnd = 1.f - temp_f32;
+		temp_f32 = hollow * SCALE_QUANTA;
+		if (temp_f32 > 1.f)
+		{
+			temp_f32 = 1.f;
+		}
+		mHollow = temp_f32;
+	}
+
+	bool operator==(const LLProfileParams &params) const;
+	bool operator!=(const LLProfileParams &params) const;
+	bool operator<(const LLProfileParams &params) const;
+	
+	void copyParams(const LLProfileParams &params);
+
+	BOOL importFile(FILE *fp);
+	BOOL exportFile(FILE *fp) const;
+
+	BOOL importLegacyStream(std::istream& input_stream);
+	BOOL exportLegacyStream(std::ostream& output_stream) const;
+
+	LLSD asLLSD() const;
+	operator LLSD() const { return asLLSD(); }
+	bool fromLLSD(LLSD& sd);
+
+	const F32&  getBegin () const				{ return mBegin; }
+	const F32&  getEnd   () const				{ return mEnd;   }
+	const F32&  getHollow() const				{ return mHollow; }
+	const U8&   getCurveType () const			{ return mCurveType; }
+
+	void setCurveType(const U32 type)			{ mCurveType = type;}
+	void setBegin(const F32 begin)				{ mBegin = (begin >= 1.0f) ? 0.0f : ((int) (begin * 1000))/1000.0f;}
+	void setEnd(const F32 end)					{ mEnd   = (end   <= 0.0f) ? 1.0f : ((int) (end * 1000))/1000.0f;}
+	void setHollow(const F32 hollow)			{ mHollow = ((int) (hollow * 1000))/1000.0f;}
+
+	friend std::ostream& operator<<(std::ostream &s, const LLProfileParams &profile_params);
+
+protected:
+	// Profile params
+	U8			  mCurveType;
+	F32           mBegin;
+	F32           mEnd;
+	F32			  mHollow;
+
+	U32           mCRC;
+};
+
+inline bool LLProfileParams::operator==(const LLProfileParams &params) const
+{
+	return 
+		(getCurveType() == params.getCurveType()) &&
+		(getBegin() == params.getBegin()) &&
+		(getEnd() == params.getEnd()) &&
+		(getHollow() == params.getHollow());
+}
+
+inline bool LLProfileParams::operator!=(const LLProfileParams &params) const
+{
+	return 
+		(getCurveType() != params.getCurveType()) ||
+		(getBegin() != params.getBegin()) ||
+		(getEnd() != params.getEnd()) ||
+		(getHollow() != params.getHollow());
+}
+
+
+inline bool LLProfileParams::operator<(const LLProfileParams &params) const
+{
+	if (getCurveType() != params.getCurveType())
+	{
+		return getCurveType() < params.getCurveType();
+	}
+	else
+	if (getBegin() != params.getBegin())
+	{
+		return getBegin() < params.getBegin();
+	}
+	else
+	if (getEnd() != params.getEnd())
+	{
+		return getEnd() < params.getEnd();
+	}
+	else
+	{
+		return getHollow() < params.getHollow();
+	}
+}
+
+#define U8_TO_F32(x) (F32)(*((S8 *)&x))
+
+class LLPathParams
+{
+public:
+	LLPathParams()
+	{
+		mBegin     = 0;
+		mEnd       = 1;
+		mScale.setVec(1,1);
+		mShear.setVec(0,0);
+		mCurveType = LL_PCODE_PATH_LINE;
+		mTwistBegin		= 0;
+		mTwistEnd     	= 0;
+		mRadiusOffset	= 0;
+		mTaper.setVec(0,0);
+		mRevolutions	= 1;
+		mSkew			= 0;
+	}
+
+	LLPathParams(U8 curve, F32 begin, F32 end, F32 scx, F32 scy, F32 shx, F32 shy, F32 twistend, F32 twistbegin, F32 radiusoffset, F32 tx, F32 ty, F32 revolutions, F32 skew)
+		: mCurveType(curve), mBegin(begin), mEnd(end), mTwistBegin(twistbegin), mTwistEnd(twistend), 
+		  mRadiusOffset(radiusoffset), mRevolutions(revolutions), mSkew(skew)
+	{
+		mScale.setVec(scx,scy);
+		mShear.setVec(shx,shy);
+		mTaper.setVec(tx,ty);
+	}
+
+	LLPathParams(U8 curve, U8 begin, U8 end, U8 scx, U8 scy, U8 shx, U8 shy, U8 twistend, U8 twistbegin, U8 radiusoffset, U8 tx, U8 ty, U8 revolutions, U8 skew)
+	{
+		mCurveType = curve;
+		mBegin = (F32)(begin * SCALE_QUANTA);
+		mEnd = (F32)(100.f - end) * SCALE_QUANTA;
+		if (mEnd > 1.f)
+			mEnd = 1.f;
+		mScale.setVec((F32) (200 - scx) * SCALE_QUANTA,(F32) (200 - scy) * SCALE_QUANTA);
+		mShear.setVec(U8_TO_F32(shx) * SHEAR_QUANTA,U8_TO_F32(shy) * SHEAR_QUANTA);
+		mTwistBegin = U8_TO_F32(twistbegin) * SCALE_QUANTA;
+		mTwistEnd = U8_TO_F32(twistend) * SCALE_QUANTA;
+		mRadiusOffset = U8_TO_F32(radiusoffset) * SCALE_QUANTA;
+		mTaper.setVec(U8_TO_F32(tx) * TAPER_QUANTA,U8_TO_F32(ty) * TAPER_QUANTA);
+		mRevolutions = ((F32)revolutions) * REV_QUANTA + 1.0f;
+		mSkew = U8_TO_F32(skew) * SCALE_QUANTA;
+	}
+
+	bool operator==(const LLPathParams &params) const;
+	bool operator!=(const LLPathParams &params) const;
+	bool operator<(const LLPathParams &params) const;
+
+	void copyParams(const LLPathParams &params);
+
+	BOOL importFile(FILE *fp);
+	BOOL exportFile(FILE *fp) const;
+
+	BOOL importLegacyStream(std::istream& input_stream);
+	BOOL exportLegacyStream(std::ostream& output_stream) const;
+
+	LLSD asLLSD() const;
+	operator LLSD() const { return asLLSD(); }
+	bool fromLLSD(LLSD& sd);
+
+	const F32& getBegin() const			{ return mBegin; }
+	const F32& getEnd() const			{ return mEnd; }
+	const LLVector2 &getScale() const	{ return mScale; }
+	const F32& getScaleX() const		{ return mScale.mV[0]; }
+	const F32& getScaleY() const		{ return mScale.mV[1]; }
+	const LLVector2 getBeginScale() const;
+	const LLVector2 getEndScale() const;
+	const LLVector2 &getShear() const	{ return mShear; }
+	const F32& getShearX() const		{ return mShear.mV[0]; }
+	const F32& getShearY() const		{ return mShear.mV[1]; }
+	const U8& getCurveType () const		{ return mCurveType; }
+
+	const F32& getTwistBegin() const	{ return mTwistBegin;	}
+	const F32& getTwistEnd() const		{ return mTwistEnd;	}
+	const F32& getTwist() const			{ return mTwistEnd; }	// deprecated
+	const F32& getRadiusOffset() const	{ return mRadiusOffset; }
+	const LLVector2 &getTaper() const	{ return mTaper;		}
+	const F32& getTaperX() const		{ return mTaper.mV[0];	}
+	const F32& getTaperY() const		{ return mTaper.mV[1];	}
+	const F32& getRevolutions() const	{ return mRevolutions;	}
+	const F32& getSkew() const			{ return mSkew;			}
+
+	void setCurveType(const U8 type)	{ mCurveType = type;	}
+	void setBegin(const F32 begin)		{ mBegin     = begin;	}
+	void setEnd(const F32 end)			{ mEnd       = end;	}
+
+	void setScale(const F32 x, const F32 y)		{ mScale.setVec(x,y); }
+	void setScaleX(const F32 v)					{ mScale.mV[VX] = v; }
+	void setScaleY(const F32 v)					{ mScale.mV[VY] = v; }
+	void setShear(const F32 x, const F32 y)		{ mShear.setVec(x,y); }
+	void setShearX(const F32 v)					{ mShear.mV[VX] = v; }
+	void setShearY(const F32 v)					{ mShear.mV[VY] = v; }
+
+	void setTwistBegin(const F32 twist_begin)	{ mTwistBegin	= twist_begin;	}
+	void setTwistEnd(const F32 twist_end)		{ mTwistEnd		= twist_end;	}
+	void setTwist(const F32 twist)				{ setTwistEnd(twist); }	// deprecated
+	void setRadiusOffset(const F32 radius_offset){ mRadiusOffset	= radius_offset; }
+	void setTaper(const F32 x, const F32 y)		{ mTaper.setVec(x,y);			}
+	void setTaperX(const F32 v)					{ mTaper.mV[VX]	= v;			}
+	void setTaperY(const F32 v)					{ mTaper.mV[VY]	= v;			}
+	void setRevolutions(const F32 revolutions)	{ mRevolutions	= revolutions;	}
+	void setSkew(const F32 skew)				{ mSkew			= skew;			}
+
+	friend std::ostream& operator<<(std::ostream &s, const LLPathParams &path_params);
+
+protected:
+	// Path params
+	U8			  mCurveType;
+	F32           mBegin;
+	F32           mEnd;
+	LLVector2	  mScale;
+	LLVector2     mShear;
+
+	F32			  mTwistBegin;
+	F32			  mTwistEnd;
+	F32			  mRadiusOffset;
+	LLVector2	  mTaper;
+	F32			  mRevolutions;
+	F32			  mSkew;
+
+	U32           mCRC;
+};
+
+inline bool LLPathParams::operator==(const LLPathParams &params) const
+{
+	return
+		(getCurveType() == params.getCurveType()) && 
+		(getScale() == params.getScale()) &&
+		(getBegin() == params.getBegin()) && 
+		(getEnd() == params.getEnd()) && 
+		(getShear() == params.getShear()) &&
+		(getTwist() == params.getTwist()) &&
+		(getTwistBegin() == params.getTwistBegin()) &&
+		(getRadiusOffset() == params.getRadiusOffset()) &&
+		(getTaper() == params.getTaper()) &&
+		(getRevolutions() == params.getRevolutions()) &&
+		(getSkew() == params.getSkew());
+}
+
+inline bool LLPathParams::operator!=(const LLPathParams &params) const
+{
+	return
+		(getCurveType() != params.getCurveType()) ||
+		(getScale() != params.getScale()) ||
+		(getBegin() != params.getBegin()) || 
+		(getEnd() != params.getEnd()) || 
+		(getShear() != params.getShear()) ||
+		(getTwist() != params.getTwist()) ||
+		(getTwistBegin() !=params.getTwistBegin()) ||
+		(getRadiusOffset() != params.getRadiusOffset()) ||
+		(getTaper() != params.getTaper()) ||
+		(getRevolutions() != params.getRevolutions()) ||
+		(getSkew() != params.getSkew());
+}
+
+
+inline bool LLPathParams::operator<(const LLPathParams &params) const
+{
+	if( getCurveType() != params.getCurveType()) 
+	{
+		return getCurveType() < params.getCurveType();
+	}
+	else
+	if( getScale() != params.getScale()) 
+	{
+		return getScale() < params.getScale();
+	}
+	else
+	if( getBegin() != params.getBegin()) 
+	{
+		return getBegin() < params.getBegin();
+	}
+	else
+	if( getEnd() != params.getEnd()) 
+	{
+		return getEnd() < params.getEnd();
+	}
+	else
+	if( getShear() != params.getShear()) 
+	{
+		return getShear() < params.getShear();
+	}
+	else
+	if( getTwist() != params.getTwist())
+	{
+		return getTwist() < params.getTwist();
+	}
+	else
+	if( getTwistBegin() != params.getTwistBegin())
+	{
+		return getTwistBegin() < params.getTwistBegin();
+	}
+	else
+	if( getRadiusOffset() != params.getRadiusOffset())
+	{
+		return getRadiusOffset() < params.getRadiusOffset();
+	}
+	else
+	if( getTaper() != params.getTaper())
+	{
+		return getTaper() < params.getTaper();
+	}
+	else
+	if( getRevolutions() != params.getRevolutions())
+	{
+		return getRevolutions() < params.getRevolutions();
+	}
+	else
+	{
+		return getSkew() < params.getSkew();
+	}
+}
+
+typedef LLVolumeParams* LLVolumeParamsPtr;
+typedef const LLVolumeParams* const_LLVolumeParamsPtr;
+
+class LLVolumeParams
+{
+public:
+	LLVolumeParams()
+	{
+	}
+
+	LLVolumeParams(LLProfileParams &profile, LLPathParams &path)
+		: mProfileParams(profile), mPathParams(path)
+	{
+	}
+
+	bool operator==(const LLVolumeParams &params) const;
+	bool operator!=(const LLVolumeParams &params) const;
+	bool operator<(const LLVolumeParams &params) const;
+
+
+	void copyParams(const LLVolumeParams &params);
+	
+	const LLProfileParams &getProfileParams() const {return mProfileParams;}
+	LLProfileParams &getProfileParams() {return mProfileParams;}
+	const LLPathParams &getPathParams() const {return mPathParams;}
+	LLPathParams &getPathParams() {return mPathParams;}
+
+	BOOL importFile(FILE *fp);
+	BOOL exportFile(FILE *fp) const;
+
+	BOOL importLegacyStream(std::istream& input_stream);
+	BOOL exportLegacyStream(std::ostream& output_stream) const;
+
+	LLSD asLLSD() const;
+	operator LLSD() const { return asLLSD(); }
+	bool fromLLSD(LLSD& sd);
+
+	bool setType(U8 profile, U8 path);
+
+	//void setBeginS(const F32 beginS)			{ mProfileParams.setBegin(beginS); }	// range 0 to 1
+	//void setBeginT(const F32 beginT)			{ mPathParams.setBegin(beginT); }		// range 0 to 1
+	//void setEndS(const F32 endS)				{ mProfileParams.setEnd(endS); }		// range 0 to 1, must be greater than begin
+	//void setEndT(const F32 endT)				{ mPathParams.setEnd(endT); }			// range 0 to 1, must be greater than begin
+
+	bool setBeginAndEndS(const F32 begin, const F32 end);			// both range from 0 to 1, begin must be less than end
+	bool setBeginAndEndT(const F32 begin, const F32 end);			// both range from 0 to 1, begin must be less than end
+
+	bool setHollow(const F32 hollow);	// range 0 to 1
+	bool setRatio(const F32 x)					{ return setRatio(x,x); }			// 0 = point, 1 = same as base
+	bool setShear(const F32 x)					{ return setShear(x,x); }			// 0 = no movement, 
+	bool setRatio(const F32 x, const F32 y);			// 0 = point, 1 = same as base
+	bool setShear(const F32 x, const F32 y);			// 0 = no movement
+
+	bool setTwistBegin(const F32 twist_begin);	// range -1 to 1
+	bool setTwistEnd(const F32 twist_end);		// range -1 to 1
+	bool setTwist(const F32 twist)				{ return setTwistEnd(twist); }		// deprecated
+	bool setTaper(const F32 x, const F32 y)		{ bool pass_x = setTaperX(x); bool pass_y = setTaperY(y); return pass_x && pass_y; }
+	bool setTaperX(const F32 v);				// -1 to 1
+	bool setTaperY(const F32 v);				// -1 to 1
+	bool setRevolutions(const F32 revolutions);	// 1 to 4
+	bool setRadiusOffset(const F32 radius_offset);
+	bool setSkew(const F32 skew);
+
+	static bool validate(U8 prof_curve, F32 prof_begin, F32 prof_end, F32 hollow,
+		U8 path_curve, F32 path_begin, F32 path_end,
+		F32 scx, F32 scy, F32 shx, F32 shy,
+		F32 twistend, F32 twistbegin, F32 radiusoffset,
+		F32 tx, F32 ty, F32 revolutions, F32 skew);
+	
+	const F32&  getBeginS() 	const	{ return mProfileParams.getBegin(); }
+ 	const F32&  getBeginT() 	const	{ return mPathParams.getBegin(); }
+ 	const F32&  getEndS() 		const	{ return mProfileParams.getEnd(); }
+ 	const F32&  getEndT() 		const	{ return mPathParams.getEnd(); }
+ 
+ 	const F32&  getHollow() 	const   { return mProfileParams.getHollow(); }
+ 	const F32&  getTwist() 	const   	{ return mPathParams.getTwist(); }
+ 	const F32&  getRatio() 	const		{ return mPathParams.getScaleX(); }
+ 	const F32&  getRatioX() 	const   { return mPathParams.getScaleX(); }
+ 	const F32&  getRatioY() 	const   { return mPathParams.getScaleY(); }
+ 	const F32&  getShearX() 	const   { return mPathParams.getShearX(); }
+ 	const F32&  getShearY() 	const   { return mPathParams.getShearY(); }
+
+	const F32&	getTwistBegin()const	{ return mPathParams.getTwistBegin();	}
+	const F32&  getRadiusOffset() const	{ return mPathParams.getRadiusOffset();	}
+	const F32&  getTaper() const		{ return mPathParams.getTaperX();		}
+	const F32&	getTaperX() const		{ return mPathParams.getTaperX();		}
+	const F32&  getTaperY() const		{ return mPathParams.getTaperY();		}
+	const F32&  getRevolutions() const	{ return mPathParams.getRevolutions();	}
+	const F32&  getSkew() const			{ return mPathParams.getSkew();			}
+
+	BOOL isConvex() const;
+
+	// 'begin' and 'end' should be in range [0, 1] (they will be clamped)
+	// (begin, end) = (0, 1) will not change the volume
+	// (begin, end) = (0, 0.5) will reduce the volume to the first half of its profile/path (S/T)
+	void reduceS(F32 begin, F32 end);
+	void reduceT(F32 begin, F32 end);
+
+	struct compare
+	{
+		bool operator()( const const_LLVolumeParamsPtr& first, const const_LLVolumeParamsPtr& second) const
+		{
+			return (*first < *second);
+		}
+	};
+	
+	friend std::ostream& operator<<(std::ostream &s, const LLVolumeParams &volume_params);
+
+protected:
+	LLProfileParams mProfileParams;
+	LLPathParams	mPathParams;
+};
+
+
+class LLProfile
+{
+public:
+	LLProfile(const LLProfileParams &params) : mParams(params)
+	{
+		mTotal    = 2;
+		mTotalOut = 0;
+		mDirty    = TRUE;
+		mConcave = FALSE;
+	}
+
+	~LLProfile();
+
+	S32	 getTotal() const								{ return mTotal; }
+	S32	 getTotalOut() const							{ return mTotalOut; }	// Total number of outside points
+	BOOL isHollow() const								{ return (mParams.getHollow() > 0); }
+	BOOL isFlat(S32 face) const							{ return (mFaces[face].mCount == 2); }
+	BOOL isOpen() const									{ return mOpen; }
+	void setDirty()										{ mDirty     = TRUE; }
+	BOOL generate(BOOL path_open, F32 detail = 1.0f, S32 split = 0);
+	BOOL isConcave() const								{ return mConcave; }
+public:
+	const LLProfileParams &mParams;
+
+	struct Face
+	{
+		S32       mIndex;
+		S32       mCount;
+		F32       mScaleU;
+		BOOL      mCap;
+		BOOL      mFlat;
+		LLFaceID  mFaceID;
+	};
+	
+	std::vector<LLVector3> mProfile;	
+	std::vector<LLVector2> mNormals;
+	std::vector<Face>      mFaces;
+	std::vector<LLVector3> mEdgeNormals;
+	std::vector<LLVector3> mEdgeCenters;
+	F32			  mMaxX;
+	F32			  mMinX;
+
+	friend std::ostream& operator<<(std::ostream &s, const LLProfile &profile);
+
+protected:
+	void genNormals();
+	void genNGon(S32 sides, F32 offset=0.0f, F32 bevel = 0.0f, F32 ang_scale = 1.f, S32 split = 0);
+
+	Face* addHole(BOOL flat, F32 sides, F32 offset, F32 box_hollow, F32 ang_scale, S32 split = 0);
+	Face* addCap (S16 faceID);
+	Face* addFace(S32 index, S32 count, F32 scaleU, S16 faceID, BOOL flat);
+
+protected:
+	BOOL		  mOpen;
+	BOOL		  mConcave;
+	BOOL          mDirty;
+
+	S32			  mTotalOut;
+	S32			  mTotal;
+};
+
+//-------------------------------------------------------------------
+// SWEEP/EXTRUDE PATHS
+//-------------------------------------------------------------------
+
+class LLPath
+{
+public:
+	struct PathPt
+	{
+		LLVector3	 mPos;
+		LLVector2    mScale;
+		LLQuaternion mRot;
+		F32			 mTexT;
+		PathPt() { mPos.setVec(0,0,0); mTexT = 0; mScale.setVec(0,0); mRot.loadIdentity(); }
+	};
+
+public:
+	LLPath(const LLPathParams &params) : mParams(params)
+	{
+		mOpen      = FALSE;
+		mDirty     = TRUE;
+		mStep      = 1;
+	}
+
+	virtual ~LLPath();
+
+	void genNGon(S32 sides, F32 offset=0.0f, F32 end_scale = 1.f, F32 twist_scale = 1.f);
+	virtual BOOL generate(F32 detail=1.0f, S32 split = 0);
+
+	BOOL isOpen() const						{ return mOpen; }
+	F32 getStep() const						{ return mStep; }
+	void setDirty()							{ mDirty     = TRUE; }
+
+	S32 getPathLength() const				{ return (S32)mPath.size(); }
+
+	void resizePath(S32 length) { mPath.resize(length); }
+
+	friend std::ostream& operator<<(std::ostream &s, const LLPath &path);
+
+public:
+	const LLPathParams &mParams;
+	std::vector<PathPt> mPath;
+
+protected:
+	BOOL		  mOpen;
+	S32			  mTotal;
+	BOOL          mDirty;
+	F32           mStep;
+};
+
+class LLDynamicPath : public LLPath
+{
+public:
+	LLDynamicPath(const LLPathParams &params) : LLPath(params) { }
+	BOOL generate(F32 detail=1.0f, S32 split = 0);
+};
+
+// Yet another "face" class - caches volume-specific, but not instance-specific data for faces)
+class LLVolumeFace
+{
+public:
+	LLVolumeFace();
+	BOOL create();
+
+	class VertexData
+	{
+	public:
+		LLVector3 mPosition;
+		LLVector3 mNormal;
+		LLVector3 mBinormal;
+		LLVector2 mTexCoord;
+	};
+
+	enum
+	{
+		SINGLE_MASK =	0x0001,
+		CAP_MASK =		0x0002,
+		END_MASK =		0x0004,
+		SIDE_MASK =		0x0008,
+		INNER_MASK =	0x0010,
+		OUTER_MASK =	0x0020,
+		HOLLOW_MASK =	0x0040,
+		OPEN_MASK =		0x0080,
+		FLAT_MASK =		0x0100,
+		TOP_MASK =		0x0200,
+		BOTTOM_MASK =	0x0400
+	} TypeMask;
+	
+public:
+	S32 mID;
+	U32 mTypeMask;
+	LLVector3 mCenter;
+
+	// Only used for INNER/OUTER faces
+	S32 mBeginS;
+	S32 mBeginT;
+	S32 mNumS;
+	S32 mNumT;
+
+	std::vector<VertexData> mVertices;
+	std::vector<S32>	mIndices;
+	std::vector<S32>	mEdge;
+	LLVolume *mVolumep; // Deliberately NOT reference counted - djs 11/20/03 - otherwise would make an annoying circular reference
+
+	// Shouldn't need num_old and num_new, really - djs
+	static BOOL updateColors(LLColor4U *old_colors, const S32 num_old, const LLVolumeFace &old_face,
+							 LLStrider<LLColor4U> &new_colors, const S32 num_new, const LLVolumeFace &new_face);
+	
+protected:
+	BOOL createUnCutCubeCap();
+	BOOL createCap();
+	BOOL createSide();
+};
+
+class LLVolume : public LLRefCount
+{
+	friend class LLVolumeLODGroup;
+
+private:
+	LLVolume(const LLVolume&);  // Don't implement
+	~LLVolume(); // use unref
+
+public:
+	struct Point
+	{
+		LLVector3 mPos;
+	};
+
+	struct FaceParams
+	{
+		LLFaceID mFaceID;
+		S32 mBeginS;
+		S32 mCountS;
+		S32 mBeginT;
+		S32 mCountT;
+	};
+
+	LLVolume(const LLVolumeParams &params, const F32 detail, const BOOL generate_single_face = FALSE, const BOOL is_unique = FALSE);
+	
+	U8 getProfileType()	const								{ return mProfilep->mParams.getCurveType(); }
+	U8 getPathType() const									{ return mPathp->mParams.getCurveType(); }
+	S32	getNumFaces() const									{ return (S32)mProfilep->mFaces.size(); }
+
+	const F32 getDetail() const								{ return mDetail; }
+	const LLVolumeParams & getParams() const				{ return mParams; }
+	LLVolumeParams getCopyOfParams() const					{ return mParams; }
+	const LLProfile& getProfile() const						{ return *mProfilep; }
+	LLPath& getPath() const									{ return *mPathp; }
+	const std::vector<Point>& getMesh() const				{ return mMesh; }
+	const LLVector3& getMeshPt(const U32 i) const			{ return mMesh[i].mPos; }
+
+	void setDirty() { mPathp->setDirty(); mProfilep->setDirty(); }
+
+	void regen();
+
+	BOOL isConvex() const;
+	BOOL isCap(S32 face);
+	BOOL isFlat(S32 face);
+	BOOL isUnique() const									{ return mUnique; }
+
+	S32 *getTriangleIndices(U32 &num_indices) const;
+	void generateSilhouetteVertices(std::vector<LLVector3> &vertices, std::vector<LLVector3> &normals, std::vector<S32> &segments, const LLVector3& view_vec,
+											  const LLMatrix4& mat,
+										  const LLMatrix3& norm_mat);
+
+	//get the face index of the face that intersects with the given line segment at the point 
+	//closest to start.  Moves end to the point of intersection.  Returns -1 if no intersection.
+	//Line segment must be in volume space.
+	S32 lineSegmentIntersect(const LLVector3& start, LLVector3& end) const;
+	
+	// The following cleans up vertices and triangles,
+	// getting rid of degenerate triangles and duplicate vertices,
+	// and allocates new arrays with the clean data.
+	static BOOL cleanupTriangleData( const S32 num_input_vertices,
+								const std::vector<Point> &input_vertices,
+								const S32 num_input_triangles,
+								S32 *input_triangles,
+								S32 &num_output_vertices,
+								LLVector3 **output_vertices,
+								S32 &num_output_triangles,
+								S32 **output_triangles);
+	LLFaceID generateFaceMask();
+
+	BOOL isFaceMaskValid(LLFaceID face_mask);
+	static S32 mNumMeshPoints;
+
+	friend std::ostream& operator<<(std::ostream &s, const LLVolume &volume);
+	friend std::ostream& operator<<(std::ostream &s, const LLVolume *volumep);		// HACK to bypass Windoze confusion over 
+																				// conversion if *(LLVolume*) to LLVolume&
+	const LLVolumeFace &getVolumeFace(const S32 f) const {return mVolumeFaces[f];} // DO NOT DELETE VOLUME WHILE USING THIS REFERENCE, OR HOLD A POINTER TO THIS VOLUMEFACE
+
+	U32					mFaceMask;			// bit array of which faces exist in this volume
+	LLVector3			mBounds[2];			// bounding box (center, half-height)
+	LLVector3			mLODScaleBias;		// vector for biasing LOD based on scale
+
+protected:
+	BOOL generate();
+	void createVolumeFaces();
+
+protected:
+	BOOL mUnique;
+	F32 mDetail;
+	LLVolumeParams mParams;
+	LLPath *mPathp;
+	LLProfile *mProfilep;
+	std::vector<Point> mMesh;
+
+	BOOL mGenerateSingleFace;
+	S32 mNumVolumeFaces;
+	LLVolumeFace *mVolumeFaces;
+};
+
+std::ostream& operator<<(std::ostream &s, const LLVolumeParams &volume_params);
+
+LLVector3 calc_binormal_from_triangle(
+		const LLVector3& pos0,
+		const LLVector2& tex0,
+		const LLVector3& pos1,
+		const LLVector2& tex1,
+		const LLVector3& pos2,
+		const LLVector2& tex2);
+
+#endif