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/**
* @file llbvhloader.h
* @brief Translates a BVH files to LindenLabAnimation format.
*
* Copyright (c) 2004-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#ifndef LL_LLBVHLOADER_H
#define LL_LLBVHLOADER_H
#include <string>
#include <vector>
#include <map>
#include <stdtypes.h>
#include <stdio.h>
#include "v3math.h"
#include "m3math.h"
#include "llmath.h"
#include "llapr.h"
const S32 BVH_PARSER_LINE_SIZE = 2048;
const F32 MAX_ANIM_DURATION = 30.f;
class LLDataPacker;
//------------------------------------------------------------------------
// FileCloser
//------------------------------------------------------------------------
class FileCloser
{
public:
FileCloser( apr_file_t *file )
{
mFile = file;
}
~FileCloser()
{
apr_file_close(mFile);
}
protected:
apr_file_t* mFile;
};
//------------------------------------------------------------------------
// Key
//------------------------------------------------------------------------
struct Key
{
Key()
{
mPos[0] = mPos[1] = mPos[2] = 0.0f;
mRot[0] = mRot[1] = mRot[2] = 0.0f;
mIgnorePos = false;
mIgnoreRot = false;
}
F32 mPos[3];
F32 mRot[3];
BOOL mIgnorePos;
BOOL mIgnoreRot;
};
//------------------------------------------------------------------------
// KeyVector
//------------------------------------------------------------------------
typedef std::vector<Key> KeyVector;
//------------------------------------------------------------------------
// Joint
//------------------------------------------------------------------------
struct Joint
{
Joint(const char *name)
{
mName = name;
mIgnore = FALSE;
mIgnorePositions = FALSE;
mRelativePositionKey = FALSE;
mRelativeRotationKey = FALSE;
mOutName = name;
mOrder[0] = 'X';
mOrder[1] = 'Y';
mOrder[2] = 'Z';
mOrder[3] = 0;
mNumPosKeys = 0;
mNumRotKeys = 0;
mChildTreeMaxDepth = 0;
mPriority = 0;
}
// Include aligned members first
LLMatrix3 mFrameMatrix;
LLMatrix3 mOffsetMatrix;
LLVector3 mRelativePosition;
//
std::string mName;
BOOL mIgnore;
BOOL mIgnorePositions;
BOOL mRelativePositionKey;
BOOL mRelativeRotationKey;
std::string mOutName;
std::string mMergeParentName;
std::string mMergeChildName;
char mOrder[4]; /* Flawfinder: ignore */
KeyVector mKeys;
S32 mNumPosKeys;
S32 mNumRotKeys;
S32 mChildTreeMaxDepth;
S32 mPriority;
};
typedef enum e_constraint_type
{
CONSTRAINT_TYPE_POINT,
CONSTRAINT_TYPE_PLANE
} EConstraintType;
struct Constraint
{
char mSourceJointName[16]; /* Flawfinder: ignore */
char mTargetJointName[16]; /* Flawfinder: ignore */
S32 mChainLength;
LLVector3 mSourceOffset;
LLVector3 mTargetOffset;
LLVector3 mTargetDir;
F32 mEaseInStart;
F32 mEaseInStop;
F32 mEaseOutStart;
F32 mEaseOutStop;
EConstraintType mConstraintType;
};
//------------------------------------------------------------------------
// JointVector
//------------------------------------------------------------------------
typedef std::vector<Joint*> JointVector;
//------------------------------------------------------------------------
// ConstraintVector
//------------------------------------------------------------------------
typedef std::vector<Constraint> ConstraintVector;
//------------------------------------------------------------------------
// Translation
//------------------------------------------------------------------------
class Translation
{
public:
Translation()
{
mIgnore = FALSE;
mRelativePositionKey = FALSE;
mRelativeRotationKey = FALSE;
mPriorityModifier = 0;
}
std::string mOutName;
BOOL mIgnore;
BOOL mIgnorePositions;
BOOL mRelativePositionKey;
BOOL mRelativeRotationKey;
LLMatrix3 mFrameMatrix;
LLMatrix3 mOffsetMatrix;
LLVector3 mRelativePosition;
std::string mMergeParentName;
std::string mMergeChildName;
S32 mPriorityModifier;
};
//------------------------------------------------------------------------
// TranslationMap
//------------------------------------------------------------------------
typedef std::map<std::string, Translation> TranslationMap;
class LLBVHLoader
{
friend class LLKeyframeMotion;
public:
// Constructor
LLBVHLoader(const char* buffer);
~LLBVHLoader();
// Status Codes
typedef char *Status;
static char *ST_OK;
static char *ST_EOF;
static char *ST_NO_CONSTRAINT;
static char *ST_NO_FILE;
static char *ST_NO_HIER;
static char *ST_NO_JOINT;
static char *ST_NO_NAME;
static char *ST_NO_OFFSET;
static char *ST_NO_CHANNELS;
static char *ST_NO_ROTATION;
static char *ST_NO_AXIS;
static char *ST_NO_MOTION;
static char *ST_NO_FRAMES;
static char *ST_NO_FRAME_TIME;
static char *ST_NO_POS;
static char *ST_NO_ROT;
static char *ST_NO_XLT_FILE;
static char *ST_NO_XLT_HEADER;
static char *ST_NO_XLT_NAME;
static char *ST_NO_XLT_IGNORE;
static char *ST_NO_XLT_RELATIVE;
static char *ST_NO_XLT_OUTNAME;
static char *ST_NO_XLT_MATRIX;
static char *ST_NO_XLT_MERGECHILD;
static char *ST_NO_XLT_MERGEPARENT;
static char *ST_NO_XLT_PRIORITY;
static char *ST_NO_XLT_LOOP;
static char *ST_NO_XLT_EASEIN;
static char *ST_NO_XLT_EASEOUT;
static char *ST_NO_XLT_HAND;
static char *ST_NO_XLT_EMOTE;
// Loads the specified translation table.
Status loadTranslationTable(const char *fileName);
// Load the specified BVH file.
// Returns status code.
Status loadBVHFile(const char *buffer, char *error_text, S32 &error_line);
// Applies translations to BVH data loaded.
void applyTranslations();
// Returns the number of lines scanned.
// Useful for error reporting.
S32 getLineNumber() { return mLineNumber; }
// returns required size of output buffer
U32 getOutputSize();
// writes contents to datapacker
BOOL serialize(LLDataPacker& dp);
// flags redundant keyframe data
void optimize();
void reset();
F32 getDuration() { return mDuration; }
BOOL isInitialized() { return mInitialized; }
Status getStatus() { return mStatus; }
protected:
// Consumes one line of input from file.
BOOL getLine(apr_file_t *fp);
// parser state
char mLine[BVH_PARSER_LINE_SIZE]; /* Flawfinder: ignore */
S32 mLineNumber;
// parsed values
S32 mNumFrames;
F32 mFrameTime;
JointVector mJoints;
ConstraintVector mConstraints;
TranslationMap mTranslations;
S32 mPriority;
BOOL mLoop;
F32 mLoopInPoint;
F32 mLoopOutPoint;
F32 mEaseIn;
F32 mEaseOut;
S32 mHand;
std::string mEmoteName;
BOOL mInitialized;
Status mStatus;
// computed values
F32 mDuration;
};
#endif // LL_LLBVHLOADER_H
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