CWE-ou-minkata/Sources/Tools/MaxPlasmaMtls/Layers/plStaticEnvLayer.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

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combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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*==LICENSE==*/
#include "HeadSpin.h"
#include "hsWindows.h"
#include "../resource.h"

#include <iparamm2.h>
#include <stdmat.h>
#pragma hdrstop

#include "plStaticEnvLayer.h"

#include "../plBMSampler.h"
#include "MaxMain/plPlasmaRefMsgs.h"

class plStaticEnvLayerClassDesc : public ClassDesc2
{
public:
    int             IsPublic()      { return TRUE; }
    void*           Create(BOOL loading = FALSE) { return new plStaticEnvLayer(); }
    const TCHAR*    ClassName()     { return GetString(IDS_STATIC_ENVMAP_LAYER); }
    SClass_ID       SuperClassID()  { return TEXMAP_CLASS_ID; }
    Class_ID        ClassID()       { return STATIC_ENV_LAYER_CLASS_ID; }
    const TCHAR*    Category()      { return TEXMAP_CAT_ENV; }
    const TCHAR*    InternalName()  { return _T("PlasmaStaticEnvMapLayer"); }
    HINSTANCE       HInstance()     { return hInstance; }
};
static plStaticEnvLayerClassDesc plStaticEnvLayerDesc;
ClassDesc2* GetStaticEnvLayerDesc() { return &plStaticEnvLayerDesc; }

#include "plStaticEnvLayerBitmapPB.cpp"

plStaticEnvLayer::plStaticEnvLayer() :
    fBitmapPB(NULL),
    fUVGen(NULL),
    fTexHandle(NULL),
    fTexTime(0),
    fIValid(NEVER)
{
    int i;

    for( i = 0; i < 6; i++ )
    {
        fBitmaps[ i ] = NULL;
    }

    plStaticEnvLayerDesc.MakeAutoParamBlocks(this);
    ReplaceReference(kRefUVGen, GetNewDefaultUVGen());  
}

plStaticEnvLayer::~plStaticEnvLayer()
{
    int     i;


    for( i = 0; i < 6; i++ )
    {
        if( fBitmaps[ i ] )
            fBitmaps[ i ]->DeleteThis();
    }

    IDiscardTexHandle();
}

void plStaticEnvLayer::GetClassName(TSTR& s)
{
    s = GetString(IDS_STATIC_ENVMAP_LAYER);
}

//From MtlBase
void plStaticEnvLayer::Reset() 
{
    GetStaticEnvLayerDesc()->Reset(this, TRUE); // reset all pb2's
    for( int i = 0; i < 6; i++ )
    {
        SetBitmap( NULL, i );
    }

    fIValid.SetEmpty();
}

void plStaticEnvLayer::Update(TimeValue t, Interval& valid) 
{
    if (!fIValid.InInterval(t))
    {
        fIValid.SetInfinite();

        fUVGen->Update(t,fIValid);
        fBitmapPB->GetValidity(t, fIValid);
    }

    // Gonna need to do this when we support animated bm's
#if 0
    if (fBM)
    {
        if (bi.FirstFrame()!=bi.LastFrame())
            ivalid.SetInstant(t);
    }
#endif

    valid &= fIValid;
}

Interval plStaticEnvLayer::Validity(TimeValue t)
{
    //TODO: Update fIValid here

    // mf horse - Hacking this in just to get animations working.
    // No warranty on this not being stupid.
    Interval v = FOREVER;
    fBitmapPB->GetValidity(t, v);
    v &= fUVGen->Validity(t);
    return v;
}

ParamDlg* plStaticEnvLayer::CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp) 
{
    fIMtlParams = imp;
    IAutoMParamDlg* masterDlg = plStaticEnvLayerDesc.CreateParamDlgs(hwMtlEdit, imp, this);

    SELBitmapDlgProc *paramDlg =  (SELBitmapDlgProc *)gBitmapParamBlk.GetUserDlgProc();
    if( paramDlg )
        paramDlg->fMtlParams = imp;

    return masterDlg;   
}

BOOL plStaticEnvLayer::SetDlgThing(ParamDlg* dlg)
{   
    return FALSE;
}

int plStaticEnvLayer::NumRefs()
{
    return 2;
}

//From ReferenceMaker
RefTargetHandle plStaticEnvLayer::GetReference(int i) 
{
    switch (i)
    {
        case kRefUVGen:     return fUVGen;
        case kRefBitmap:    return fBitmapPB;
        default: return NULL;
    }
}

void plStaticEnvLayer::SetReference(int i, RefTargetHandle rtarg) 
{
    Interval    garbage;

    switch (i)
    {
        case kRefUVGen:  
            fUVGen = (UVGen *)rtarg; 
            if( fUVGen )
                fUVGen->Update( TimeValue( 0 ), garbage );
            break;
        case kRefBitmap:
            fBitmapPB = (IParamBlock2 *)rtarg;
            // KLUDGE: If the paramblock is being set chances are we are being created or
            // loaded.  In the case of load, we want to refresh our textures.
            if (fBitmapPB)
                RefreshBitmaps();
            break;
    }
}

int plStaticEnvLayer::NumParamBlocks()
{
    return 1;
}

IParamBlock2* plStaticEnvLayer::GetParamBlock(int i)
{
    switch (i)
    {
    case 0: return fBitmapPB;
    default: return NULL;
    }
}

IParamBlock2* plStaticEnvLayer::GetParamBlockByID(BlockID id)
{
    if (fBitmapPB->ID() == id)
        return fBitmapPB;
    else
        return NULL;
}

//From ReferenceTarget 
RefTargetHandle plStaticEnvLayer::Clone(RemapDir &remap) 
{
    plStaticEnvLayer *mnew = new plStaticEnvLayer();
    *((MtlBase*)mnew) = *((MtlBase*)this); // copy superclass stuff
    mnew->ReplaceReference(kRefBitmap, remap.CloneRef(fBitmapPB));
    mnew->ReplaceReference(kRefUVGen, remap.CloneRef(fUVGen));
    BaseClone(this, mnew, remap);
    return (RefTargetHandle)mnew;
}

int plStaticEnvLayer::NumSubs()
{
    return 2;
}

Animatable* plStaticEnvLayer::SubAnim(int i) 
{
    //TODO: Return 'i-th' sub-anim
    switch (i)
    {
        case kRefUVGen:     return fUVGen;
        case kRefBitmap:    return fBitmapPB;
        default: return NULL;
    }
}

TSTR plStaticEnvLayer::SubAnimName(int i) 
{
    switch (i)
    {
        case kRefUVGen:     return "UVGen";
        case kRefBitmap:    return fBitmapPB->GetLocalName();
        default: return "";
    }
}

RefResult plStaticEnvLayer::NotifyRefChanged(Interval changeInt, RefTargetHandle hTarget, 
   PartID& partID, RefMessage message) 
{
    switch (message)
    {
    case REFMSG_CHANGE:
        {
            fIValid.SetEmpty();

            if (hTarget == fBitmapPB)
            {
                // see if this message came from a changing parameter in the pblock,
                // if so, limit rollout update to the changing item and update any active viewport texture
                ParamID changingParam = fBitmapPB->LastNotifyParamID();
                fBitmapPB->GetDesc()->InvalidateUI(changingParam);

                if (changingParam != -1)
                    IChanged();
            }
        }
        break;

    case REFMSG_UV_SYM_CHANGE:
        IDiscardTexHandle();  
        break;
    }

    return REF_SUCCEED;
}

void plStaticEnvLayer::IChanged()
{
    IDiscardTexHandle();
    // Texture wasn't getting updated in the viewports, and this fixes it.
    // Don't know if it's the right way though.
    NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);

    // And this is so the SceneWatcher gets notified that the material on some of it's
    // referenced objects changed.
    NotifyDependents(FOREVER, PART_ALL, REFMSG_USER_MAT);
}

#define TEX_HDR_CHUNK 0x5000
#define MAX_ASS_CHUNK 0x5500

IOResult plStaticEnvLayer::Save(ISave *isave) 
{
    IOResult res;

    isave->BeginChunk(TEX_HDR_CHUNK);
    res = MtlBase::Save(isave);
    if (res != IO_OK)
        return res;
    isave->EndChunk();

    return IO_OK;
}   

IOResult plStaticEnvLayer::Load(ILoad *iload) 
{
    IOResult res;
    while (IO_OK == (res = iload->OpenChunk()))
    {
        if (iload->CurChunkID() == TEX_HDR_CHUNK)
        {
            res = MtlBase::Load(iload);
        }
        iload->CloseChunk();
        if (res != IO_OK) 
            return res;
    }

    return IO_OK;
}

inline Point2 CompUV(float x, float y, float z) 
{
    return Point2( 0.5f * ( x / z + 1.0f ), 0.5f * ( y / z + 1.0f ) );
}

AColor plStaticEnvLayer::EvalColor(ShadeContext& sc)
{
    if (!sc.doMaps) 
        return AColor(0.0f, 0.0f, 0.0f, 1.0f);

    AColor color;
    if (sc.GetCache(this, color)) 
        return color;

    if (gbufID) 
        sc.SetGBufferID(gbufID);

    // Evaluate the Bitmap

//  Point3  v = sc.VectorTo( sc.V(), REF_OBJECT );//WORLD );
    Point3  v = sc.VectorTo( sc.Normal(), REF_OBJECT );
    float   wx,wy,wz;
    Color   rcol;
    Bitmap  *refmap = NULL;
    Point3  rv;
    Point2  uv;
    int     size;

    wx = (float)fabs( v.x );  
    wy = (float)fabs( v.y );
    wz = (float)fabs( v.z ); 
    if( wx >= wy && wx >= wz )
    {
        if( v.x < 0 )
        {
            refmap = fBitmaps[ kLeftFace ];
            uv = CompUV( -v.y, -v.z,  v.x );
        }
        else
        {
            refmap = fBitmaps[ kRightFace ];
            uv = CompUV( v.y, -v.z, -v.x );
        }
    }
    else if( wy >= wx && wy >= wz ) 
    {
        if( v.y > 0 )
        {
            refmap = fBitmaps[ kBackFace ];
            uv = CompUV( -v.x, -v.z, -v.y );
        }
        else
        {
            refmap = fBitmaps[ kFrontFace ];
            uv = CompUV(  v.x, -v.z,  v.y );
        }
    }
    else if( wz >= wx && wz >= wy ) 
    {
        if( v.z < 0 )
        {   
            refmap = fBitmaps[ kBottomFace ];
            uv = CompUV( -v.x, -v.y,  v.z );
        }
        else     
        {   
            refmap = fBitmaps[ kTopFace ];
            uv = CompUV( -v.x,  v.y, -v.z );
        }
    }

    if( refmap == NULL )
        color.White();
    else
    {
        if( uv.x < 0.0f )
            uv.x = 0.0f; 
        else if( uv.x > 1.0f )
            uv.x = 1.0f;
        if( uv.y < 0.0f )
            uv.y = 0.0f; 
        else if( uv.y > 1.0f )
            uv.y = 1.0f;
        size = refmap->Width();
        int x = (int)( uv.x * (float)( size - 1 ) );
        int y = (int)( ( 1.0f - uv.y ) * (float)( size - 1 ) );

        BMM_Color_64 c;
        refmap->GetLinearPixels( x, y, 1, &c );
        color = AColor( c.r / 65535.f, c.g / 65535.f, c.b / 65535.f, c.a / 65535.f );
    }

    // Invert color if specified
    if( fBitmapPB->GetInt( kBmpInvertColor ) )
    {
        color.r = 1.0f - color.r;
        color.g = 1.0f - color.g;
        color.b = 1.0f - color.b;
    }
    // Discard color if specified
    if( fBitmapPB->GetInt( kBmpDiscardColor ) )
        color.r = color.g = color.b = 1.0f;

    // Invert alpha if specified
    if( fBitmapPB->GetInt( kBmpInvertAlpha ) )
        color.a = 1.0f - color.a;
    // Discard alpha if specified
    if( fBitmapPB->GetInt( kBmpDiscardAlpha ) )
        color.a = 1.0f;

    // If RGB output is set to alpha, show RGB as grayscale of the alpha
    if( fBitmapPB->GetInt( kBmpRGBOutput ) == 1 )
        color = AColor( color.a, color.a, color.a, 1.0f );

    sc.PutCache(this, color); 
    return color;
}

float plStaticEnvLayer::EvalMono(ShadeContext& sc)
{
    if (fBitmapPB->GetInt(kBmpMonoOutput) == 1)
        return EvalColor(sc).a;

    return Intens(EvalColor(sc));
}

Point3 plStaticEnvLayer::EvalNormalPerturb(ShadeContext& sc)
{
    // Return the perturbation to apply to a normal for bump mapping
    return Point3(0, 0, 0);
}

ULONG plStaticEnvLayer::LocalRequirements(int subMtlNum)
{
    if( fBitmapPB->GetInt( kBmpUseMAXAtmosphere ) )
        return MTLREQ_VIEW_DEP;

    return MTLREQ_VIEW_DEP | MTLREQ_NOATMOS;
}

void plStaticEnvLayer::IDiscardTexHandle() 
{
    if (fTexHandle)
    {
        fTexHandle->DeleteThis();
        fTexHandle = NULL;
    }
}

void plStaticEnvLayer::ActivateTexDisplay(BOOL onoff)
{
    if (!onoff)
        IDiscardTexHandle();
}

BITMAPINFO *plStaticEnvLayer::GetVPDisplayDIB(TimeValue t, TexHandleMaker& thmaker, Interval &valid, BOOL mono, BOOL forceW, BOOL forceH)
{
                        // FIXME
    fTexTime = 0;//CalcFrame(t);
//  texValid = clipValid;
    BITMAPINFO *bmi = NULL;
    int xflags = 0;

    if (fBitmapPB->GetInt(kBmpRGBOutput) == 1)
        xflags |= EX_RGB_FROM_ALPHA;
    bmi = thmaker.BitmapToDIB(fBitmaps[ 0 ], fUVGen->SymFlags(), xflags, forceW, forceH);

    return bmi;
}

DWORD plStaticEnvLayer::GetActiveTexHandle(TimeValue t, TexHandleMaker& thmaker) 
{
    // FIXME: ignore validity for now
    if (fTexHandle && fIValid.InInterval(t))// && texTime == CalcFrame(t)) 
        return fTexHandle->GetHandle();
    else
    {
        IDiscardTexHandle();
        
        fTexTime = 0;//CalcFrame(t);
        fTexHandle = thmaker.MakeHandle(GetVPDisplayDIB(t, thmaker, fIValid));
        if (fTexHandle)
            return fTexHandle->GetHandle();
        else
            return 0;
    }
}

const char *plStaticEnvLayer::GetTextureName( int which )
{
//  if (fBitmapPB->GetInt(kBmpUseBitmap))
    {
        PBBitmap *pbbm = fBitmapPB->GetBitmap( kBmpFrontBitmap + which );
        if (pbbm)
            return pbbm->bi.Name();
    }

    return NULL;
}

//// Set/GetBaseFilename //////////////////////////////////////////////////////

void    plStaticEnvLayer::SetBaseFilename( const TCHAR *name, TimeValue t )
{
    fBitmapPB->SetValue( kBmpBaseFilename, t, (TCHAR *)name );
}

const TCHAR *plStaticEnvLayer::GetBaseFilename( TimeValue t )
{
    return (const TCHAR*)fBitmapPB->GetStr(kBmpBaseFilename, t);
}

//// IGetViewTM ///////////////////////////////////////////////////////////////

Matrix3 plStaticEnvLayer::IGetViewTM( int i )
{
    Matrix3 m;
    m.IdentityMatrix();
    switch( i ) 
    {
        case kTopFace:
            m.RotateX( -M_PI );   
            break;
        case kBottomFace:
            break;
        case kLeftFace:
            m.RotateX( -.5f * M_PI ); 
            m.RotateY( -.5f * M_PI );
            break;
        case kRightFace:
            m.RotateX( -.5f * M_PI ); 
            m.RotateY( +.5f * M_PI );
            break;
        case kFrontFace:
            m.RotateX( -.5f * M_PI ); 
            m.RotateY( M_PI );
            break;
        case kBackFace:
            m.RotateX( -.5f * M_PI ); 
            break;
    }
    return m;
}

//// IWriteBM /////////////////////////////////////////////////////////////////

int plStaticEnvLayer::IWriteBM( BitmapInfo *bi, Bitmap *bm, TCHAR *name )
{
    bi->SetName( name );
    if( bm->OpenOutput( bi ) == BMMRES_SUCCESS )
    {
        if( bm->Write( bi, BMM_SINGLEFRAME ) == BMMRES_SUCCESS ) 
        {
            bm->Close( bi );
            return 1;
        }
    }

    return 0;
}

//// RenderCubicMap ///////////////////////////////////////////////////////////
//  Generates the 6 faces for a cubic map based on a picked node

void    plStaticEnvLayer::RenderCubicMap( INode *node )
{
    int         res, size;
    BOOL        success = 0;
    TSTR        fname, fullname;
    Bitmap      *bm = NULL;
    TSTR        path, filename, ext, thisFilename;
    BitmapInfo  biOutFile;

    static TCHAR    suffixes[ 6 ][ 4 ] = { "_FR", "_BK", "_LF", "_RT", "_UP", "_DN" };


    Interface *ip = GetCOREInterface();
    size = fBitmapPB->GetInt( kBmpTextureSize, ip->GetTime() );
    if( size <= 0 ) 
    {
        return;
    }

    thisFilename = fBitmapPB->GetStr( kBmpBaseFilename, ip->GetTime() );
    if( thisFilename.isNull() )
    {
        return;
    }

    SplitFilename( thisFilename, &path, &filename, &ext );

    BOOL    wasHid = node->IsNodeHidden();
    node->Hide( TRUE );

    // Create a blank bitmap
    biOutFile.SetWidth( size );
    biOutFile.SetHeight( size );
    biOutFile.SetType( BMM_TRUE_64 );
    biOutFile.SetAspect( 1.0f );
    biOutFile.SetCurrentFrame( 0 );
    bm = TheManager->Create( &biOutFile );

    Matrix3 nodeTM = node->GetNodeTM( ip->GetTime() );
    Matrix3 tm; 
    INode *root = ip->GetRootNode();        
    bm->Display( GetString( IDS_CUBIC_RENDER_TITLE ) );

    /// Set up rendering contexts
    ViewParams vp;
    vp.projType = PROJ_PERSPECTIVE;
    vp.hither = .001f;
    vp.yon = 1.0e30f;
    vp.fov = M_PI/2.0f;
    if( fBitmapPB->GetInt( kBmpUseMAXAtmosphere ) )
    {
        vp.nearRange = 0;
        vp.farRange = fBitmapPB->GetFloat( kBmpFarDistance );
    }
    else
    {
        vp.nearRange = vp.farRange = 1.0e30f;
    }
    BOOL    saveUseEnvMap = ip->GetUseEnvironmentMap();
    ip->SetUseEnvironmentMap( false );

    res = ip->OpenCurRenderer( &vp ); 
    for( int i = 0; i < 6; i++ )
    {
        tm = IGetViewTM( i );
        tm.PreTranslate( -nodeTM.GetTrans() ); 
        vp.affineTM = tm;

        // Construct filename
        thisFilename.printf( _T( "%s\\%s%s%s" ), path, filename, suffixes[ i ], ext );

        res = ip->CurRendererRenderFrame( ip->GetTime(), bm, NULL, 1.0f, &vp );
        if( !res ) 
            goto fail;

        if( !IWriteBM( &biOutFile, bm, thisFilename ) ) 
            goto fail;
    }

    success = 1;
fail:
    ip->CloseCurRenderer(); 
    ip->SetUseEnvironmentMap( saveUseEnvMap );

    bm->DeleteThis();
    node->Hide( wasHid );
    if( success )
    {
        for(int i = 0; i < 6; i++ )
        {
            BitmapInfo  bi;
            thisFilename.printf( _T( "%s\\%s%s%s" ), path, filename, suffixes[ i ], ext );
            bi.SetName( thisFilename );

            PBBitmap    pbBitmap( bi );
            fBitmapPB->SetValue( kBmpFrontBitmap + i, ip->GetTime(), &pbBitmap );
        }
        fBitmapPB->GetMap()->UpdateUI( ip->GetTime() );
    }
}

PBBitmap *plStaticEnvLayer::GetPBBitmap(int index /* = 0 */)
{ 
    return fBitmapPB->GetBitmap( ParamID( kBmpFrontBitmap + index ) ); 
}

void plStaticEnvLayer::ISetPBBitmap( PBBitmap *pbbm, int index )
{
    fBitmapPB->SetValue( ParamID( kBmpFrontBitmap + index ), 0, pbbm );
}