niotso/Libraries/libvitaboy/libvitaboy.hpp

/*
    libvitaboy - Copyright (c) 2012 Fatbag <X-Fi6@phppoll.org>

    Permission to use, copy, modify, and/or distribute this software for any
    purpose with or without fee is hereby granted, provided that the above
    copyright notice and this permission notice appear in all copies.

    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <memory.h>

class VBFile_t {
  private:
    const uint8_t *Buffer, *Position;
    unsigned Size;
    
  public:
    inline void set(const void *_Buffer, unsigned _Size){
        Buffer = (const uint8_t*) _Buffer;
        Position = (const uint8_t*) _Buffer;
        Size = _Size;
    }
    
    inline unsigned getpos(){
        return Position-Buffer;
    }
    
    inline void seekto(unsigned offset){
        Position = Buffer+offset;
    }
    
    inline uint32_t readint32(){
        uint32_t value = (uint32_t)((Position[0]<<(8*3)) | (Position[1]<<(8*2)) | (Position[2]<<(8*1)) | (Position[3]<<(8*0)));
        Position += 4;
        return value;
    }
    
    inline uint32_t readint16(){
        uint16_t value = (uint16_t)((Position[0]<<(8*1)) | (Position[1]<<(8*0)));
        Position += 2;
        return value;
    }
    
    inline uint32_t readint8(){
        uint8_t value = (uint8_t)((Position[0]<<(8*0)));
        Position += 1;
        return value;
    }
    
    inline float readfloat(){
        //Obviously a platform-dependent implementation
        float value;
        memcpy(&value, Position, 4);
        Position += 4;
        return value;
    }
    
    inline void readbytes(void* Destination, unsigned length){
        memcpy(Destination, Position, length);
        Position += length;
    }
    
    inline char* readstring(){
        //Read a Pascal string with 1 length byte
        unsigned length = readint8();
        char *string = (char*) malloc((length+1) * sizeof(char));
        readbytes(string, length);
        string[length] = '\0';
        return string;
    }
    
    inline char* readstring2(){
        //Read a Pascal string with 2 length bytes
        unsigned length = readint16();
        char *string = (char*) malloc((length+1) * sizeof(char));
        readbytes(string, length);
        string[length] = '\0';
        return string;
    }
};

extern VBFile_t VBFile;

/****
** Common
*/

struct Translation_t {
    float x, y, z;
};

struct Rotation_t {
    float x, y, z, w;
};

struct KeyValuePair_t {
    char * Key;
    char * Value;
};

struct Prop_t {
    uint32_t EntriesCount;
    KeyValuePair_t * Entries;
};

struct PropsList_t {
    uint32_t PropsCount;
    Prop_t * Props;
};

void ReadPropEntry(KeyValuePair_t& Entry);
void ReadPropEntries(Prop_t& Prop);
void ReadPropsList(PropsList_t& PropsList);
float DotProduct(Rotation_t * q1, Rotation_t * q2);
void CombineQuaternions(Rotation_t * Destination, Rotation_t * Source);
void FindQuaternionMatrix(float * Matrix, Rotation_t * Quaternion);


/****
** Animation (*.anim)
*/

struct TimeProp_t {
    uint32_t ID;
    PropsList_t PropsList;
};

struct TimePropsList_t {
    uint32_t TimePropsCount;
    TimeProp_t * TimeProps;
};

struct Motion_t {
    uint32_t Unknown;
    char * BoneName;
    uint32_t FrameCount;
    float Duration;
    uint8_t HasTranslation;
    uint8_t HasRotation;
    uint32_t FirstTranslation;
    uint32_t FirstRotation;
    Translation_t * Translations;
    Rotation_t * Rotations;

    uint8_t HasPropsLists;
    uint32_t PropsListsCount;
    PropsList_t * PropsLists;

    uint8_t HasTimePropsLists;
    uint32_t TimePropsListsCount;
    TimePropsList_t * TimePropsLists;
};

struct Animation_t {
    uint32_t Version;
    char * Name;
    float Duration;
    float Distance;
    uint8_t IsMoving;
    uint32_t TranslationsCount;
    uint32_t RotationsCount;
    uint32_t MotionsCount;

    unsigned TranslationsOffset;
    unsigned RotationsOffset;

    Motion_t * Motions;
};

void ReadAnimation(Animation_t& Animation);
void ReadMotion(Animation_t& Animation, Motion_t& Motion);
void ReadPropsLists(Motion_t& Motion);
void ReadTimePropsList(TimePropsList_t& TimePropsList);
void ReadTimePropsLists(Motion_t& Motion);


/****
** Mesh (*.mesh)
*/

struct TextureVertex_t {
    float u, v;
};

struct Vertex_t {
    float x, y, z;
};

struct Face_t {
    unsigned VertexA, VertexB, VertexC;
};

struct BoneBinding_t {
    unsigned BoneIndex;
    unsigned FirstFixedVertex;
    unsigned FixedVertexCount;
    unsigned FirstBlendedVertex;
    unsigned BlendedVertexCount;
};

struct BlendData_t {
    float Weight;
    unsigned OtherVertex;
};

struct Mesh_t {
    uint32_t Version;
    uint32_t BoneCount;
    char ** BoneNames;
    uint32_t FaceCount;
    Face_t * FaceData;
    uint32_t BindingCount;
    BoneBinding_t * BoneBindings;
    uint32_t FixedVertexCount;
    TextureVertex_t * TextureVertexData;
    uint32_t BlendedVertexCount;
    BlendData_t * BlendData;
    uint32_t TotalVertexCount;
    Vertex_t * VertexData;
    Vertex_t * VertexNorms;
    Vertex_t * TransformedVertexData;
    Vertex_t * TransformedVertexNorms;
    TextureVertex_t * TransformedTextureData;
};

void ReadMesh(Mesh_t& Mesh);


/****
** Skeleton (*.skel)
*/

struct Bone_t {
    uint32_t Unknown;
    char * Name;
    char * ParentsName;
    uint8_t HasProps;
    PropsList_t PropsList;
    Translation_t Translation;
    Rotation_t Rotation;
    uint32_t CanTranslate;
    uint32_t CanRotate;
    uint32_t CanBlend;
    float WiggleValue;
    float WigglePower;
    
    unsigned ChildrenCount;
    Bone_t ** Children;
};

struct Skeleton_t {
    uint32_t Version;
    char * Name;
    uint16_t BoneCount;
    Bone_t * Bones;
};

void ReadSkeleton(Skeleton_t& Bone);
void ReadBone(Skeleton_t& Skeleton, Bone_t& Bone, unsigned Index);
unsigned FindBone(Skeleton_t& Skeleton, const char * BoneName, unsigned Count);