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

/*==LICENSE==*

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*==LICENSE==*/
#include "hsTypes.h"
#include "plDynamicTextLayer.h"

#include "iparamb2.h"
#include "iparamm2.h"
#include "stdmat.h"

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

class plDynamicTextLayerClassDesc : public ClassDesc2
{
public:
    int             IsPublic()      { return TRUE; }
    void*           Create(BOOL loading = FALSE) { return TRACKED_NEW plDynamicTextLayer(); }
    const TCHAR*    ClassName()     { return GetString(IDS_DYN_TEXT_LAYER); }
    SClass_ID       SuperClassID()  { return TEXMAP_CLASS_ID; }
    Class_ID        ClassID()       { return DYN_TEXT_LAYER_CLASS_ID; }
    const TCHAR*    Category()      { return TEXMAP_CAT_2D; }
    const TCHAR*    InternalName()  { return _T("PlasmaDynamicTextLayer"); }
    HINSTANCE       HInstance()     { return hInstance; }
};
static plDynamicTextLayerClassDesc plDynamicTextLayerDesc;
ClassDesc2* GetDynamicTextLayerDesc() { return &plDynamicTextLayerDesc; }

#include "plDynamicTextLayerBitmapPB.cpp"

ParamDlg* plDynamicTextLayer::fUVGenDlg = NULL;

plDynamicTextLayer::plDynamicTextLayer() :
    fBitmapPB(NULL),
    fUVGen(NULL),
    fTexHandle(NULL),
    fTexTime(0),
    fIValid(NEVER)
{
    fInitBitmap = NULL;

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

plDynamicTextLayer::~plDynamicTextLayer()
{
    if( fInitBitmap )
        fInitBitmap->DeleteThis();

    IDiscardTexHandle();
}

//From MtlBase
void plDynamicTextLayer::Reset() 
{
    GetDynamicTextLayerDesc()->Reset(this, TRUE);   // reset all pb2's
    NotifyDependents(FOREVER, PART_ALL, REFMSG_CHANGE);

    fIValid.SetEmpty();
}

void plDynamicTextLayer::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 plDynamicTextLayer::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* plDynamicTextLayer::CreateParamDlg(HWND hwMtlEdit, IMtlParams *imp) 
{
    fIMtlParams = imp;
    IAutoMParamDlg* masterDlg = plDynamicTextLayerDesc.CreateParamDlgs(hwMtlEdit, imp, this);

    fUVGenDlg = fUVGen->CreateParamDlg(hwMtlEdit, imp);
    masterDlg->AddDlg(fUVGenDlg);

    return masterDlg;   
}

BOOL plDynamicTextLayer::SetDlgThing(ParamDlg* dlg)
{   
    if (dlg == fUVGenDlg)
    {
        fUVGenDlg->SetThing(fUVGen);
        return TRUE;
    }

    return FALSE;
}

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

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

void plDynamicTextLayer::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 plDynamicTextLayer::NumParamBlocks()
{
    return 1;
}

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

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

//From ReferenceTarget 
RefTargetHandle plDynamicTextLayer::Clone(RemapDir &remap) 
{
    plDynamicTextLayer *mnew = TRACKED_NEW plDynamicTextLayer();
    *((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 plDynamicTextLayer::NumSubs()
{
    return 2;
}

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

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

RefResult plDynamicTextLayer::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 plDynamicTextLayer::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

IOResult plDynamicTextLayer::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 plDynamicTextLayer::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 ) );
}

Bitmap  *plDynamicTextLayer::GetBitmap( TimeValue t )
{
    return fInitBitmap;
}

AColor plDynamicTextLayer::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
    if( fBitmapPB->GetInt( kBmpUseInitImage ) && fInitBitmap )
    {
        plBMSampler mysamp( this, fInitBitmap );
        color = fUVGen->EvalUVMap( sc, &mysamp, TRUE );
    }
    else
        color.White();

    // 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;

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

float plDynamicTextLayer::EvalMono(ShadeContext& sc)
{
    return Intens(EvalColor(sc));
}

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

ULONG plDynamicTextLayer::LocalRequirements(int subMtlNum)
{
    return fUVGen->Requirements( subMtlNum );
}

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

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

BITMAPINFO *plDynamicTextLayer::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;

    // Create a bitmap to write into via Windows
    BITMAPINFO tempBMI;
    memset( &tempBMI.bmiHeader, 0, sizeof( BITMAPINFOHEADER ) );
    tempBMI.bmiHeader.biSize = sizeof( BITMAPINFOHEADER );
    tempBMI.bmiHeader.biWidth = fBitmapPB->GetInt( kBmpExportWidth );
    tempBMI.bmiHeader.biHeight = -(int)fBitmapPB->GetInt( kBmpExportHeight );
    tempBMI.bmiHeader.biPlanes = 1;
    tempBMI.bmiHeader.biCompression = BI_RGB;
    tempBMI.bmiHeader.biBitCount = 32;

    DWORD       *bitmapBits;
    HDC winDC = CreateCompatibleDC( nil );
    HBITMAP bitmap = CreateDIBSection( winDC, &tempBMI, DIB_RGB_COLORS, (void **)&bitmapBits, nil, 0 );

    HBITMAP old = (HBITMAP)SelectObject( winDC, bitmap );

    // Write into it now
    RECT    r;
    SetRect( &r, 0, 0, fBitmapPB->GetInt( kBmpExportWidth ) - 1, fBitmapPB->GetInt( kBmpExportHeight ) - 1 );
    HBRUSH brush = CreateSolidBrush( RGB( 255, 0, 0 ) );
    FrameRect( winDC, &r, brush );
    DeleteObject( brush );

    SetMapMode( winDC, MM_TEXT );
    SetBkMode( winDC, TRANSPARENT );
    SetTextAlign( winDC, TA_TOP | TA_LEFT );

    // Background letters
    int nHeight = -MulDiv( 72, GetDeviceCaps( winDC, LOGPIXELSY ), 72 );
    HFONT winFont = CreateFont( nHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
                        CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, VARIABLE_PITCH, "Times New Roman" );
    if( winFont != nil )
    {
        HFONT origFont = (HFONT)SelectObject( winDC, winFont );
        SetTextColor( winDC, RGB( 32, 32, 32 ) );
        char str2[] = "ABCDEFG";
        ::TextOut( winDC, 0, 0, str2, strlen( str2 ) );
        SelectObject( winDC, origFont );
        DeleteObject( winFont );
    }

    nHeight = -MulDiv( 8, GetDeviceCaps( winDC, LOGPIXELSY ), 72 );
    winFont = CreateFont( nHeight, 0, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
                        CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, VARIABLE_PITCH, "Arial" );
    if( winFont != nil )
    {
        HFONT origFont = (HFONT)SelectObject( winDC, winFont );

        SetTextColor( winDC, RGB( 255, 255, 255 ) );
        char str[] = "Dynamic Text";
        ::TextOut( winDC, 0, 0, str, strlen( str ) );
        char str3[] = "This is 8 point Arial";
        ::TextOut( winDC, 0, 12, str3, strlen( str3 ) );

        SelectObject( winDC, origFont );
        DeleteObject( winFont );
    }


    /// Create a MAX bitmap and copy over the data, the painful way
    Bitmap  *maxBmp;
    BitmapInfo maxInfo;

    maxInfo.SetType( BMM_TRUE_32 );
    maxInfo.SetWidth( fBitmapPB->GetInt( kBmpExportWidth ) );
    maxInfo.SetHeight( fBitmapPB->GetInt( kBmpExportHeight ) );
    maxInfo.SetFlags( MAP_HAS_ALPHA );
    maxInfo.SetCustomFlag( 0 );
    maxBmp = TheManager->Create( &maxInfo );

    PixelBuf l64( fBitmapPB->GetInt( kBmpExportWidth ) );
    for( int y = 0; y < fBitmapPB->GetInt( kBmpExportHeight ); y++ )
    {
        BMM_Color_64 *p64 = l64.Ptr();
        for( int x = 0; x < fBitmapPB->GetInt( kBmpExportWidth ); x++, p64++ )
        {
            COLORREF color = GetPixel( winDC, x, y );       

            if( color == RGB( 0, 0, 0 ) )
            {
                if( fBitmapPB->GetInt( kBmpUseInitImage ) && fInitBitmap != nil )
                    fInitBitmap->GetLinearPixels( x, y, 1, p64 );
                else
                    p64->r = p64->g = p64->b = 0.f;
            }
            else
            {
                p64->r = GetRValue( color ) << 8;
                p64->g = GetGValue( color ) << 8;
                p64->b = GetBValue( color ) << 8;
            }
            p64->a = 0xffff;
        }
        maxBmp->PutPixels( 0, y, fBitmapPB->GetInt( kBmpExportWidth ), l64.Ptr() );
    }

    // Done with these now
    SelectObject( winDC, old );
    DeleteObject( bitmap );
    DeleteObject( winDC );

    // Convert to a BITMAPINFO. Go figure.
    bmi = thmaker.BitmapToDIB( maxBmp, 0, xflags, forceW, forceH );

    return bmi;
}

DWORD plDynamicTextLayer::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 *plDynamicTextLayer::GetTextureName( int which )
{
    PBBitmap *pbbm = fBitmapPB->GetBitmap( kBmpInitBitmap );
    if( pbbm )
        return pbbm->bi.Name();
    return NULL;
}

void plDynamicTextLayer::ISetPBBitmap(PBBitmap *pbbm, int index /* = 0 */)
{ 
    fBitmapPB->SetValue( (ParamID)kBmpInitBitmap, 0, pbbm ); 
}

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

//// GetSamplerInfo ///////////////////////////////////////////////////////////
//  Virtual function called by plBMSampler to get various things while sampling 
//  the layer's image

bool    plDynamicTextLayer::GetSamplerInfo( plBMSamplerData *samplerData )
{
    if( fBitmapPB->GetInt( (ParamID)kBmpDiscardAlpha ) )
        samplerData->fAlphaSource = plBMSamplerData::kDiscard;
    else
        samplerData->fAlphaSource = plBMSamplerData::kFromTexture;

    return true;
}