CWE-ou-minkata/Sources/Plasma/PubUtilLib/plGImage/hsDXTDirectXCodec.cpp

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*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  hsDXTDirectXCodec Class Functions                                        //
//  DirectX-based codec functions                                            //
//  Cyan, Inc.                                                               //
//                                                                           //
//// Version History //////////////////////////////////////////////////////////
//                                                                           //
//  6.8.2001 mcn - Got a much-needed Plasma 2.0/DX8 update.                  //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////


#include "hsConfig.h"
#include "hsWindows.h"

#if HS_BUILD_FOR_WIN32
#include <ddraw.h>
#include <d3d9.h>
#endif

#include "hsTypes.h"
#include "hsDXTDirectXCodec.h"
#include "plMipmap.h"
#include "hsCodecManager.h"
#include "plPipeline/hsGDDrawDllLoad.h"

#if HS_BUILD_FOR_WIN32
namespace {
    typedef HRESULT(WINAPI * DIRECTDRAWCREATEEX)( GUID*, VOID**, REFIID, IUnknown* );
}

enum
{
    D3DTEXTURE_FMT_ARGB32_8888                  = 0x00000002,       // No. 2: 8888 ARGB (32-bit) format.
    D3DTEXTURE_FMT_FOURCC_DXT1                  = 0x00002000,       // No.14: DXTn FourCC (DXT1), format.
    D3DTEXTURE_FMT_FOURCC_DXT5                  = 0x00020000,       // No.18: DXTn FourCC (DXT5), format.
};
#endif

hsBool hsDXTDirectXCodec::fRegistered = false;

//// Small Init Functions /////////////////////////////////////////////////////

hsDXTDirectXCodec& hsDXTDirectXCodec::Instance()
{
    static hsDXTDirectXCodec the_instance;

    return the_instance;
}

hsDXTDirectXCodec::hsDXTDirectXCodec() : fDirectDraw( nil ), fDDLibraryInstance( nil ), fFlags( 0 )
{
}

hsDXTDirectXCodec::~hsDXTDirectXCodec()
{
#if HS_BUILD_FOR_WIN32
    if ((fFlags & kExternalInit) == 0)
    {
        if (fDirectDraw)
        {
            fDirectDraw->Release();
        }
        
        if (fDDLibraryInstance)
        {
            FreeLibrary(fDDLibraryInstance);
        }
    }

    fDirectDraw = nil;
    fDDLibraryInstance = nil;
#endif
}

hsBool hsDXTDirectXCodec::Register()
{
    return hsCodecManager::Instance().Register( &(Instance()), plMipmap::kDirectXCompression, 500 );
}

#if HS_BUILD_FOR_WIN32
//// Initialize ///////////////////////////////////////////////////////////////

void hsDXTDirectXCodec::Initialize( IDirect3DDevice8 *directDraw )
{
/*  if (directDraw)
    {
        fFlags |= (kInitialized | kExternalInit);
    }
    else
    {
        fFlags &= ~(kInitialized | kExternalInit);
    }
    fDirectDraw = directDraw;
*/
    // Don't do anything--force IInitialize to run
}

//// IInitialize //////////////////////////////////////////////////////////////
//  Gotta initialize D3D ourself and create a device and everything. This is
//  a LOT messier than it was in DX7, since this time we got D3D to deal with

hsBool  hsDXTDirectXCodec::IInitialize()
{
    fFlags |= kInitialized;

//  if( hsGDDrawDllLoad::GetDDrawDll() == nil )
//      return false;   

    DIRECTDRAWCREATEEX DirectDrawCreateEx = 0;

    // Initialize DirectDraw
    HRESULT hr;
    DirectDrawCreateEx = (DIRECTDRAWCREATEEX)GetProcAddress( hsGDDrawDllLoad::GetD3DDll(), "DirectDrawCreateEx" );
    if( DirectDrawCreateEx == nil )
        return false;

    /// Using EMULATIONONLY here usually fails--using NULL forces the
    /// use of the standard display driver, which DOES work.
    if (FAILED(hr = DirectDrawCreateEx((GUID FAR *)NULL/*DDCREATE_EMULATIONONLY*/, (VOID**)&fDirectDraw, IID_IDirectDraw7, NULL)))
        return false;

    if (FAILED(hr = fDirectDraw->SetCooperativeLevel(NULL, DDSCL_NORMAL)))
        return false;

    return true;
}
#endif

//// CreateCompressedMipmap ///////////////////////////////////////////////////
//  Updated 8.15.2000 mcn to generate uncompressed mipmaps down to 1x1 (the
//  decompressor better know how to deal with this!) Also cleaned up so I can
//  read it :)

plMipmap *hsDXTDirectXCodec::CreateCompressedMipmap( plMipmap *uncompressed )
{
#if HS_BUILD_FOR_WIN32
    const plMipmap  *b = uncompressed;
    plMipmap        *compressed = nil;

    UInt32  numLevels = 1, numCompLevels;
    UInt32  compFormat, totalSize, compSize;
    Int32   width, height, blockSize, i;


    /// Sanity checks, initialization, etc.
    if( !Initialized() )
    {
        if( !IInitialize() )
            return nil;
    }

    hsAssert( fRegistered, "Calling member of unregistered codec." );
    hsAssert( !uncompressed->IsCompressed(), "Trying to re-compress compressed bitmap." );

    if( !fDirectDraw )
        return nil;

    /// Check width and height
    if( ( uncompressed->GetWidth() | uncompressed->GetHeight() ) & 0x03 )
        return nil;     /// Width and height must be multiple of 4

    /// This used to be checked later--but WHY? We can check it now and
    /// potentially avoid a lot of headache
    compFormat = ICompressedFormat( b );
    if( !compFormat )
        return nil;

    /// Precalc this
    blockSize = ( compFormat == D3DTEXTURE_FMT_FOURCC_DXT1 ) ? 8 : 16;


    {
        compSize = 0;
        numCompLevels = 0;

        width = uncompressed->GetWidth();
        height = uncompressed->GetHeight();

        /// Count the levels we're going to compress
        for( i = 0; i < uncompressed->GetNumLevels(); i++ )
        {
            if( ( width | height ) & 0x03 )
                break;

            numCompLevels++;
            compSize += blockSize * width * height >> 4;
            width >>= 1;
            height >>= 1;
        }

        /// NEW 8.15.2000 mcn - Now count up remaining levels down to 1x1
        totalSize = compSize;
        numLevels = numCompLevels;
        for( ; i < uncompressed->GetNumLevels(); i++ )
        {
            totalSize += uncompressed->GetLevelSize( (UInt8)i );

            width >>= 1;
            height >>= 1;
            numLevels++;
        }
    }


    /// Create source DirectDraw surface
    IDirectDrawSurface7 *srcSurface = IMakeDirect3DSurface( D3DTEXTURE_FMT_ARGB32_8888, 
                                                            numCompLevels, uncompressed->GetWidth(), 
                                                            uncompressed->GetHeight() );

    IFillSurface( (hsRGBAColor32 *)uncompressed->GetImage(), numCompLevels, srcSurface );

    /// Create destination DirectDraw surface
    IDirectDrawSurface7 *destSurface = IMakeDirect3DSurface( compFormat, numCompLevels, 
                                                            uncompressed->GetWidth(), 
                                                            uncompressed->GetHeight() );
    ICopySurface( destSurface, srcSurface, numCompLevels );


    /// Now set up the data structures
    compressed = TRACKED_NEW plMipmap( uncompressed->GetWidth(), uncompressed->GetHeight(), plMipmap::kARGB32Config,
                                uncompressed->GetNumLevels(), plMipmap::kDirectXCompression,
                                ( compFormat == D3DTEXTURE_FMT_FOURCC_DXT1 ) ? 
                                        plMipmap::DirectXInfo::kDXT1 : plMipmap::DirectXInfo::kDXT5 );
    
    /// Copy compressed data back from the surface
    IFillFromSurface( (hsRGBAColor32 *)compressed->GetImage(), numCompLevels, destSurface );

    /// Finally, copy back any remaining data
    if( numCompLevels < numLevels )
    {
        /// Now copy the rest straight over
        for( i = numCompLevels; i < numLevels; i++ )
        {
            memcpy( compressed->GetLevelPtr( (UInt8)i ), uncompressed->GetLevelPtr( (UInt8)i ), 
                    uncompressed->GetLevelSize( (UInt8)i ) );
        }
    }

    /// All done!
    return compressed;
#else
    return nil;
#endif
}

//// CreateUncompressedMipmap /////////////////////////////////////////////////
//  Updated 8.15.2000 mcn to support mipmaps down to 1x1. See
//  CreateCompressedMipmap(). Also cleaned up the code a bit (too tired to 
//  clean it ALL up)

plMipmap *hsDXTDirectXCodec::CreateUncompressedMipmap( plMipmap *compressed, 
                                                            UInt8 bitDepth )
{
    /// Use software decompression ALWAYS
    return nil;
/*
    plMipmap    *uncompressed = nil;

    UInt32  mmlvs, formatType, numCompLevels;
    Int32   totalSize, width, height, i;


    /// Check bit depth--if it's 16 bit, we don't support it (for now)
    if( ( bitDepth & hsCodecManager::kBitDepthMask ) != hsCodecManager::k16BitDepth )
        return nil;

    if( !Initialized() )
    {
        if( !IInitialize() )
            return nil;
    }

    /// Sanity checks
    hsAssert( fRegistered, "Calling member of unregistered codec." );
    hsAssert( compressed->fFlags & hsGMipmap::kCompressed, "Trying to uncompress already uncompressed bitmap." );
    hsAssert( compressed->fCompressionFormat == hsGMipmap::kDirectXCompression, "Uncompressing wrong format." );
    hsAssert( ( compressed->fDirectXInfo.fCompressionType == hsGMipmap::DirectXInfo::kDXT1 ) ||
        ( compressed->fDirectXInfo.fCompressionType == hsGMipmap::DirectXInfo::kDXT5 ),
        "Unsupported directX compression format." );

    if( !fDirectDraw )
        return nil;

    if( compressed->fDirectXInfo.fCompressionType == hsGMipmap::DirectXInfo::kDXT5 )
    {
        // Fall out since directX software decompressor doesn't work...
        return nil;
    }

    if( compressed->fFlags & hsGMipmap::kMipMap )
    {
        mmCompressed->SetLevel( 0 );
        mmlvs = mmCompressed->GetNumLevels();

        for( i = 0, numCompLevels = 0; i < mmlvs; i++ )
        {
            mmCompressed->SetLevel( i );
            if( ( mmCompressed->fWidth | mmCompressed->fHeight ) & 0x03 )
                break;
            numCompLevels++;
        }
        mmCompressed->SetLevel( 0 );
    }
    else
    {
        mmlvs = numCompLevels = 1;
    }

    /// Get format type
    formatType = ( compressed->fDirectXInfo.fCompressionType == hsGMipmap::DirectXInfo::kDXT1 ) ? 
                            D3DTEXTURE_FMT_FOURCC_DXT1 : D3DTEXTURE_FMT_FOURCC_DXT5;

    /// Make the surfaces (decompress in the process)
    IDirectDrawSurface7 *srcSurface = IMakeDirect3DSurface( formatType, numCompLevels, 
                                                            compressed->fWidth, compressed->fHeight );
    IFillSurface( (hsRGBAColor32 *)compressed->fImage, numCompLevels, srcSurface );


    IDirectDrawSurface7 *destSurface = IMakeDirect3DSurface( D3DTEXTURE_FMT_ARGB32_8888, numCompLevels, 
                                                        compressed->fWidth, compressed->fHeight );
    ICopySurface( destSurface, srcSurface, numCompLevels );


    /// Set up the uncompressed data structure
    if( compressed->fFlags & hsGMipmap::kMipMap )
    {
        mmUncompressed = TRACKED_NEW hsGMipmapClass;
        uncompressed = mmUncompressed;
    }
    else
    {
        uncompressed = TRACKED_NEW plMipmap;
        mmUncompressed = nil;
    }

    uncompressed->fWidth = compressed->fWidth;
    uncompressed->fHeight = compressed->fHeight;
    uncompressed->fPixelSize = 32;
    uncompressed->fRowBytes = uncompressed->fWidth * uncompressed->fPixelSize >> 3;
    uncompressed->fFlags = compressed->fFlags & ~hsGMipmap::kCompressed;
    uncompressed->fCompressionFormat = 0;
    uncompressed->fDirectXInfo.fBlockSize = 0;
    uncompressed->fDirectXInfo.fCompressionType = hsGMipmap::DirectXInfo::kError;

    /// Handle mipmaps or single image?
    if( mmUncompressed )
    {
        totalSize = 0;
        width = compressed->fWidth;
        height = compressed->fHeight;
        for( i = 0; i < mmlvs; i++ )
        {
            totalSize += width * height * uncompressed->fPixelSize >> 3;
            width >>= 1;
            height >>= 1;
        }
        mmUncompressed->fImage = HSMemory::New( totalSize );
        mmUncompressed->SetData( mmUncompressed->fImage );
        mmUncompressed->SetNumLevels( mmlvs );
    }
    else
    {
        uncompressed->fImage = HSMemory::New( uncompressed->fWidth * uncompressed->fHeight * 
                                                uncompressed->fPixelSize >> 3 );
    }

    /// Copy over compressed levels
    IFillFromSurface( (hsRGBAColor32 *)uncompressed->fImage, numCompLevels, destSurface );

    /// Now take care of the remainder levels
    if( mmUncompressed )
    {
        for( i = numCompLevels; i < mmlvs; i++ )
        {
            mmUncompressed->SetLevel( i );
            mmCompressed->SetLevel( i );

            memcpy( mmUncompressed->fImage, mmCompressed->fImage, mmCompressed->ImageSize() );
        }
        mmUncompressed->SetLevel( 0 );
        mmCompressed->SetLevel( 0 );
    }

    /// All done!
    return uncompressed;
*/
}

#if HS_BUILD_FOR_WIN32
UInt32 hsDXTDirectXCodec::ICompressedFormat(const plMipmap *uncompressed)
{
    if( uncompressed->GetFlags() & plMipmap::kAlphaChannelFlag )
        return D3DTEXTURE_FMT_FOURCC_DXT5;

    return D3DTEXTURE_FMT_FOURCC_DXT1;
}

//// IFindTextureFormat ///////////////////////////////////////////////////////
//  Changed to a local function 6.8.2001 to avoid certain annoying problems
//  with headers and the compiler.

DDPIXELFORMAT   IFindTextureFormat(UInt32 formatType)
{
    DDPIXELFORMAT ddPixelFormat;
    memset( &ddPixelFormat, 0x00, sizeof(DDPIXELFORMAT) );
    ddPixelFormat.dwSize = sizeof(DDPIXELFORMAT);

    switch (formatType)
    {
    case D3DTEXTURE_FMT_ARGB32_8888:
        ddPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
        ddPixelFormat.dwFourCC = 0;
        ddPixelFormat.dwRGBBitCount = 32;
        ddPixelFormat.dwRBitMask = 0x00ff0000;
        ddPixelFormat.dwGBitMask = 0x0000ff00;
        ddPixelFormat.dwBBitMask = 0x000000ff;
        ddPixelFormat.dwRGBAlphaBitMask = 0xff000000;
        return ddPixelFormat;
    case D3DTEXTURE_FMT_FOURCC_DXT1:
        ddPixelFormat.dwFlags = DDPF_FOURCC;
        ddPixelFormat.dwFourCC = FOURCC_DXT1;
        return ddPixelFormat;
    case D3DTEXTURE_FMT_FOURCC_DXT5:
        ddPixelFormat.dwFlags = DDPF_FOURCC;
        ddPixelFormat.dwFourCC = FOURCC_DXT5;
        return ddPixelFormat;
    default:
        hsAssert(false, "Unknown texture format selected");
        return ddPixelFormat;
    }
}

IDirectDrawSurface7 *hsDXTDirectXCodec::IMakeDirect3DSurface(UInt32 formatType, UInt32 mipMapLevels, 
                                                              UInt32 width, UInt32 height)
{
    DDSURFACEDESC2 ddsd2;
    memset( &ddsd2, 0x00, sizeof(DDSURFACEDESC2) );
    ddsd2.dwSize          = sizeof(DDSURFACEDESC2);
    ddsd2.dwFlags         = DDSD_CAPS|DDSD_WIDTH|DDSD_HEIGHT|DDSD_PIXELFORMAT;
    ddsd2.ddsCaps.dwCaps  = DDSCAPS_TEXTURE;
    if(mipMapLevels > 1 )
    {
        ddsd2.dwFlags |= DDSD_MIPMAPCOUNT;
        ddsd2.ddsCaps.dwCaps |= DDSCAPS_MIPMAP|DDSCAPS_COMPLEX;
    }
    ddsd2.dwMipMapCount   = mipMapLevels;
    ddsd2.dwWidth         = width;
    ddsd2.dwHeight        = height;
    ddsd2.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;

    ddsd2.ddpfPixelFormat = IFindTextureFormat(formatType);

    IDirectDrawSurface7 *lpDDsTex;
    HRESULT res = fDirectDraw->CreateSurface( &ddsd2, &lpDDsTex, NULL );
    if( S_OK != res )
        CheckErrorCode(res);
    return lpDDsTex;
}

void hsDXTDirectXCodec::IFillSurface(hsRGBAColor32* src, UInt32 mmlvs, IDirectDrawSurface7 *pddsDest)
{
    UInt8                   *pTexDat = (UInt8*)src;
    UInt32                  cap      = 0;

    HRESULT     hr;
    DDSCAPS2    ddsCaps2;

    for( WORD wNum=0; wNum < mmlvs; wNum++ )
    {
        DDSURFACEDESC2 ddsd2;
        memset( &ddsd2, 0x00, sizeof(DDSURFACEDESC2) );
        ddsd2.dwSize = sizeof( DDSURFACEDESC2 );

        hr  = pddsDest->Lock( NULL, &ddsd2, DDLOCK_WAIT | DDLOCK_WRITEONLY | DDLOCK_DISCARDCONTENTS, NULL );
        if (ddsd2.ddpfPixelFormat.dwFlags == DDPF_FOURCC)
        {
            Int32 blockSize = (ddsd2.ddpfPixelFormat.dwFourCC == FOURCC_DXT1) ? 8 : 16;
            cap = ddsd2.dwHeight * ddsd2.dwWidth * blockSize >> 4;
            memcpy( (char*)ddsd2.lpSurface, pTexDat, cap );
            pTexDat += cap;
        }
        else
        {
            hsAssert(ddsd2.ddpfPixelFormat.dwRGBBitCount == 32, "Format not supported.");

            Int32* dest = (Int32*)ddsd2.lpSurface;
            Int32 pixelCount = ddsd2.dwHeight * ddsd2.dwWidth;
            Int32 j;
            for (j = 0; j < pixelCount; ++j)
            {
                dest[j] =  ( ( src->a << 24 ) | ( src->r << 16 ) | ( src->g << 8 ) | src->b );
                src++;
            }
        }
        hr = pddsDest->Unlock( NULL );

        memset( &ddsCaps2, 0x00, sizeof(DDSCAPS2) );
        ddsCaps2.dwCaps = DDSCAPS_TEXTURE | DDSCAPS_MIPMAP;
        if( SUCCEEDED( pddsDest->GetAttachedSurface( &ddsCaps2, &pddsDest ) ) )
            pddsDest->Release();
    }
}

void hsDXTDirectXCodec::IFillFromSurface(hsRGBAColor32* dest, UInt32 mmlvs, IDirectDrawSurface7 *pddsSrc)
{
    UInt8           *pTexDat = (UInt8 *)dest;
    UInt32          cap      = 0;

    HRESULT         hr;
    DDSCAPS2        ddsCaps2;
    DDSURFACEDESC2  ddsd2;


    for( WORD wNum = 0; wNum < mmlvs; wNum++ )
    {
        memset( &ddsd2, 0, sizeof( DDSURFACEDESC2 ) );
        ddsd2.dwSize = sizeof( DDSURFACEDESC2 );

        hr = pddsSrc->Lock( NULL, &ddsd2, DDLOCK_WAIT | DDLOCK_READONLY | 
                                            DDLOCK_DISCARDCONTENTS, NULL );

        if( ddsd2.ddpfPixelFormat.dwFlags == DDPF_FOURCC )
        {
            Int32 blockSize = ( ddsd2.ddpfPixelFormat.dwFourCC == FOURCC_DXT1 ) ? 8 : 16;

            cap = ddsd2.dwHeight * ddsd2.dwWidth * blockSize >> 4;
            memcpy( pTexDat, (char*)ddsd2.lpSurface, cap );
            pTexDat += cap;
        }
        else
        {
            hsAssert( ddsd2.ddpfPixelFormat.dwRGBBitCount == 32, "Format not supported." );

            Int32* src = (Int32*)ddsd2.lpSurface;
            Int32 pixelCount = ddsd2.dwHeight * ddsd2.dwWidth;
            Int32 j;
            for (j = 0; j < pixelCount; ++j)
            {
                dest->a = (UInt8)((src[j] >> 24) & 0xff);
                dest->r = (UInt8)((src[j] >> 16) & 0xff);
                dest->g = (UInt8)((src[j] >> 8) & 0xff);
                dest->b = (UInt8)((src[j]) & 0xff);
                dest++;
            }
        }
        hr = pddsSrc->Unlock( NULL );

        memset( &ddsCaps2, 0, sizeof( DDSCAPS2 ) );
        ddsCaps2.dwCaps = DDSCAPS_TEXTURE | DDSCAPS_MIPMAP;

        if( SUCCEEDED( pddsSrc->GetAttachedSurface( &ddsCaps2, &pddsSrc ) ) )
            pddsSrc->Release();
    }
}

void hsDXTDirectXCodec::ICopySurface(IDirectDrawSurface7 *dest, IDirectDrawSurface7 *src, Int32 mipMapLevels)
{
    DDSURFACEDESC2 ddsd2;
    memset( &ddsd2, 0x00, sizeof(DDSURFACEDESC2) );
    ddsd2.dwSize = sizeof( DDSURFACEDESC2 );

    DDSCAPS2 ddsCaps;
    
    ZeroMemory(&ddsCaps, sizeof(ddsCaps));
    ddsCaps.dwCaps = DDSCAPS_TEXTURE;
    if (mipMapLevels > 1)
        ddsCaps.dwCaps2 = DDSCAPS2_MIPMAPSUBLEVEL;

    IDirectDrawSurface7 *lpSrc = src;
    IDirectDrawSurface7 *lpDst = dest;

    int mmlvs = mipMapLevels;

    HRESULT hr;
    int i;
    for( i = 0; i < mmlvs; i++ )
    {
        if( FAILED(hr = lpDst->Blt(NULL, lpSrc, NULL, DDBLT_WAIT, NULL)) )
        {
            hsAssert(false, "Uh oh!");
        }
        
        if (FAILED(hr = lpSrc->GetAttachedSurface(&ddsCaps, &lpSrc))
          ||FAILED(hr = lpDst->GetAttachedSurface(&ddsCaps, &lpDst)))
        {
            break;
        }
        lpSrc->Release();
        lpDst->Release();
    }
}

void hsDXTDirectXCodec::CheckErrorCode(HRESULT res)
{
    switch( res )
    {
        // This object is already initialized
        case DDERR_ALREADYINITIALIZED:
            hsAssert(false, "DDERR_ALREADYINITIALIZED.");
            break;

        // This surface can not be attached to the requested surface.
        case DDERR_CANNOTATTACHSURFACE:
            hsAssert(false, "DDERR_CANNOTATTACHSURFACE.");
            break;

        // This surface can not be detached from the requested surface.
        case DDERR_CANNOTDETACHSURFACE:
            hsAssert(false, "DDERR_CANNOTDETACHSURFACE.");
            break;

        // Support is currently not available.
        case DDERR_CURRENTLYNOTAVAIL:
            hsAssert(false, "DDERR_CURRENTLYNOTAVAIL.");
            break;

        // An exception was encountered while performing the requested operation
        case DDERR_EXCEPTION:
            hsAssert(false, "DDERR_EXCEPTION.");
            break;

        // Generic failure.
        case DDERR_GENERIC:
            hsAssert(false, "DDERR_GENERIC.");
            break;

        // Height of rectangle provided is not a multiple of reqd alignment
        case DDERR_HEIGHTALIGN:
            hsAssert(false, "DDERR_HEIGHTALIGN.");
            break;

        // Unable to match primary surface creation request with existing
        // primary surface.
        case DDERR_INCOMPATIBLEPRIMARY:
            hsAssert(false, "DDERR_INCOMPATIBLEPRIMARY.");
            break;

        // One or more of the caps bits passed to the callback are incorrect.
        case DDERR_INVALIDCAPS:
            hsAssert(false, "DDERR_INVALIDCAPS.");
            break;

        // DirectDraw does not support provided Cliplist.
        case DDERR_INVALIDCLIPLIST:
            hsAssert(false, "DDERR_INVALIDCLIPLIST.");
            break;

        // DirectDraw does not support the requested mode
        case DDERR_INVALIDMODE:
            hsAssert(false, "DDERR_INVALIDMODE.");
            break;

        // DirectDraw received a pointer that was an invalid DIRECTDRAW object.
        case DDERR_INVALIDOBJECT:
            hsAssert(false, "DDERR_INVALIDOBJECT.");
            break;

        // One or more of the parameters passed to the callback function are
        // incorrect.
        case DDERR_INVALIDPARAMS:
            hsAssert(false, "DDERR_INVALIDPARAMS.");
            break;

        // pixel format was invalid as specified
        case DDERR_INVALIDPIXELFORMAT:
            hsAssert(false, "DDERR_INVALIDPIXELFORMAT.");
            break;

        // Rectangle provided was invalid.
        case DDERR_INVALIDRECT:
            hsAssert(false, "DDERR_INVALIDRECT.");
            break;

        // Operation could not be carried out because one or more surfaces are locked
        case DDERR_LOCKEDSURFACES:
            hsAssert(false, "DDERR_LOCKEDSURFACES.");
            break;

        // There is no 3D present.
        case DDERR_NO3D:
            hsAssert(false, "DDERR_NO3D.");
            break;

        // Operation could not be carried out because there is no alpha accleration
        // hardware present or available.
        case DDERR_NOALPHAHW:
            hsAssert(false, "DDERR_NOALPHAHW.");
            break;

        // no clip list available
        case DDERR_NOCLIPLIST:
            hsAssert(false, "DDERR_NOCLIPLIST.");
            break;

        // Operation could not be carried out because there is no color conversion
        // hardware present or available.
        case DDERR_NOCOLORCONVHW:
            hsAssert(false, "DDERR_NOCOLORCONVHW.");
            break;

        // Create function called without DirectDraw object method SetCooperativeLevel
        // being called.
        case DDERR_NOCOOPERATIVELEVELSET:
            hsAssert(false, "DDERR_NOCOOPERATIVELEVELSET.");
            break;

        // Surface doesn't currently have a color key
        case DDERR_NOCOLORKEY:
            hsAssert(false, "DDERR_NOCOLORKEY.");
            break;

        // Operation could not be carried out because there is no hardware support
        // of the dest color key.
        case DDERR_NOCOLORKEYHW:
            hsAssert(false, "DDERR_NOCOLORKEYHW.");
            break;

        // No DirectDraw support possible with current display driver
        case DDERR_NODIRECTDRAWSUPPORT:
            hsAssert(false, "DDERR_NODIRECTDRAWSUPPORT.");
            break;

        // Operation requires the application to have exclusive mode but the
        // application does not have exclusive mode.
        case DDERR_NOEXCLUSIVEMODE:
            hsAssert(false, "DDERR_NOEXCLUSIVEMODE.");
            break;

        // Flipping visible surfaces is not supported.
        case DDERR_NOFLIPHW:
            hsAssert(false, "DDERR_NOFLIPHW.");
            break;

        // There is no GDI present.
        case DDERR_NOGDI:
            hsAssert(false, "DDERR_NOGDI.");
            break;

        // Operation could not be carried out because there is no hardware present
        // or available.
        case DDERR_NOMIRRORHW:
            hsAssert(false, "DDERR_NOMIRRORHW.");
            break;

        // Requested item was not found
        case DDERR_NOTFOUND:
            hsAssert(false, "DDERR_NOTFOUND.");
            break;

        // Operation could not be carried out because there is no overlay hardware
        // present or available.
        case DDERR_NOOVERLAYHW:
            hsAssert(false, "DDERR_NOOVERLAYHW.");
            break;

        // Operation could not be carried out because the source and destination
        // rectangles are on the same surface and overlap each other.
        case DDERR_OVERLAPPINGRECTS:
            hsAssert(false, "DDERR_OVERLAPPINGRECTS.");
            break;

        // Operation could not be carried out because there is no appropriate raster
        // op hardware present or available.
        case DDERR_NORASTEROPHW:
            hsAssert(false, "DDERR_NORASTEROPHW.");
            break;

        // Operation could not be carried out because there is no rotation hardware
        // present or available.
        case DDERR_NOROTATIONHW:
            hsAssert(false, "DDERR_NOROTATIONHW.");
            break;

        // Operation could not be carried out because there is no hardware support
        // for stretching
        case DDERR_NOSTRETCHHW:
            hsAssert(false, "DDERR_NOSTRETCHHW.");
            break;

        // DirectDrawSurface is not in 4 bit color palette and the requested operation
        // requires 4 bit color palette.
        case DDERR_NOT4BITCOLOR:
            hsAssert(false, "DDERR_NOT4BITCOLOR.");
            break;

        // DirectDrawSurface is not in 4 bit color index palette and the requested
        // operation requires 4 bit color index palette.
        case DDERR_NOT4BITCOLORINDEX:
            hsAssert(false, "DDERR_NOT4BITCOLORINDEX.");
            break;

        // DirectDraw Surface is not in 8 bit color mode and the requested operation
        // requires 8 bit color.
        case DDERR_NOT8BITCOLOR:
            hsAssert(false, "DDERR_NOT8BITCOLOR.");
            break;

        // Operation could not be carried out because there is no texture mapping
        // hardware present or available.
        case DDERR_NOTEXTUREHW:
            hsAssert(false, "DDERR_NOTEXTUREHW.");
            break;

        // Operation could not be carried out because there is no hardware support
        // for vertical blank synchronized operations.
        case DDERR_NOVSYNCHW:
            hsAssert(false, "DDERR_NOVSYNCHW.");
            break;

        // Operation could not be carried out because there is no hardware support
        // for zbuffer blting.
        case DDERR_NOZBUFFERHW:
            hsAssert(false, "DDERR_NOZBUFFERHW.");
            break;

        // Overlay surfaces could not be z layered based on their BltOrder because
        // the hardware does not support z layering of overlays.
        case DDERR_NOZOVERLAYHW:
            hsAssert(false, "DDERR_NOZOVERLAYHW.");
            break;

        // The hardware needed for the requested operation has already been
        // allocated.
        case DDERR_OUTOFCAPS:
            hsAssert(false, "DDERR_OUTOFCAPS.");
            break;

        // DirectDraw does not have enough memory to perform the operation.
        case DDERR_OUTOFMEMORY:
            hsAssert(false, "DDERR_OUTOFMEMORY.");
            break;

        // DirectDraw does not have enough memory to perform the operation.
        case DDERR_OUTOFVIDEOMEMORY:
            hsAssert(false, "DDERR_OUTOFVIDEOMEMORY.");
            break;

        // hardware does not support clipped overlays
        case DDERR_OVERLAYCANTCLIP:
            hsAssert(false, "DDERR_OVERLAYCANTCLIP.");
            break;

        // Can only have ony color key active at one time for overlays
        case DDERR_OVERLAYCOLORKEYONLYONEACTIVE:
            hsAssert(false, "DDERR_OVERLAYCOLORKEYONLYONEACTIVE.");
            break;

        // Access to this palette is being refused because the palette is already
        // locked by another thread.
        case DDERR_PALETTEBUSY:
            hsAssert(false, "DDERR_PALETTEBUSY.");
            break;

        // No src color key specified for this operation.
        case DDERR_COLORKEYNOTSET:
            hsAssert(false, "DDERR_COLORKEYNOTSET.");
            break;

        // This surface is already attached to the surface it is being attached to.
        case DDERR_SURFACEALREADYATTACHED:
            hsAssert(false, "DDERR_SURFACEALREADYATTACHED.");
            break;

        // This surface is already a dependency of the surface it is being made a
        // dependency of.
        case DDERR_SURFACEALREADYDEPENDENT:
            hsAssert(false, "DDERR_SURFACEALREADYDEPENDENT.");
            break;

        // Access to this surface is being refused because the surface is already
        // locked by another thread.
        case DDERR_SURFACEBUSY:
            hsAssert(false, "DDERR_SURFACEBUSY.");
            break;

        // Access to this surface is being refused because no driver exists
        // which can supply a pointer to the surface.
        // This is most likely to happen when attempting to lock the primary
        // surface when no DCI provider is present.
        // Will also happen on attempts to lock an optimized surface.
        case DDERR_CANTLOCKSURFACE:
            hsAssert(false, "DDERR_CANTLOCKSURFACE.");
            break;

        // Access to Surface refused because Surface is obscured.
        case DDERR_SURFACEISOBSCURED:
            hsAssert(false, "DDERR_SURFACEISOBSCURED.");
            break;

        // Access to this surface is being refused because the surface is gone.
        // The DIRECTDRAWSURFACE object representing this surface should
        // have Restore called on it.
        case DDERR_SURFACELOST:
            hsAssert(false, "DDERR_SURFACELOST.");
            break;

        // The requested surface is not attached.
        case DDERR_SURFACENOTATTACHED:
            hsAssert(false, "DDERR_SURFACENOTATTACHED.");
            break;

        // Height requested by DirectDraw is too large.
        case DDERR_TOOBIGHEIGHT:
            hsAssert(false, "DDERR_TOOBIGHEIGHT.");
            break;

        // Size requested by DirectDraw is too large --  The individual height and
        // width are OK.
        case DDERR_TOOBIGSIZE:
            hsAssert(false, "DDERR_TOOBIGSIZE.");
            break;

        // Width requested by DirectDraw is too large.
        case DDERR_TOOBIGWIDTH:
            hsAssert(false, "DDERR_TOOBIGWIDTH.");
            break;

        // Action not supported.
        case DDERR_UNSUPPORTED:
            hsAssert(false, "DDERR_UNSUPPORTED.");
            break;

        // FOURCC format requested is unsupported by DirectDraw
        case DDERR_UNSUPPORTEDFORMAT:
            hsAssert(false, "DDERR_UNSUPPORTEDFORMAT.");
            break;

        // Bitmask in the pixel format requested is unsupported by DirectDraw
        case DDERR_UNSUPPORTEDMASK:
            hsAssert(false, "DDERR_UNSUPPORTEDMASK.");
            break;

        // The specified stream contains invalid data
        case DDERR_INVALIDSTREAM:
            hsAssert(false, "DDERR_INVALIDSTREAM.");
            break;

        // vertical blank is in progress
        case DDERR_VERTICALBLANKINPROGRESS:
            hsAssert(false, "DDERR_VERTICALBLANKINPROGRESS.");
            break;

        // Informs DirectDraw that the previous Blt which is transfering information
        // to or from this Surface is incomplete.
        case DDERR_WASSTILLDRAWING:
            hsAssert(false, "DDERR_WASSTILLDRAWING.");
            break;

        // Rectangle provided was not horizontally aligned on reqd. boundary
        case DDERR_XALIGN:
            hsAssert(false, "DDERR_XALIGN.");
            break;

        // The GUID passed to DirectDrawCreate is not a valid DirectDraw driver
        // identifier.
        case DDERR_INVALIDDIRECTDRAWGUID:
            hsAssert(false, "DDERR_INVALIDDIRECTDRAWGUID.");
            break;

        // A DirectDraw object representing this driver has already been created
        // for this process.
        case DDERR_DIRECTDRAWALREADYCREATED:
            hsAssert(false, "DDERR_DIRECTDRAWALREADYCREATED.");
            break;

        // A hardware only DirectDraw object creation was attempted but the driver
        // did not support any hardware.
        case DDERR_NODIRECTDRAWHW:
            hsAssert(false, "DDERR_NODIRECTDRAWHW.");
            break;

        // this process already has created a primary surface
        case DDERR_PRIMARYSURFACEALREADYEXISTS:
            hsAssert(false, "DDERR_PRIMARYSURFACEALREADYEXISTS.");
            break;

        // software emulation not available.
        case DDERR_NOEMULATION:
            hsAssert(false, "DDERR_NOEMULATION.");
            break;

        // region passed to Clipper::GetClipList is too small.
        case DDERR_REGIONTOOSMALL:
            hsAssert(false, "DDERR_REGIONTOOSMALL.");
            break;

        // an attempt was made to set a clip list for a clipper objec that
        // is already monitoring an hwnd.
        case DDERR_CLIPPERISUSINGHWND:
            hsAssert(false, "DDERR_CLIPPERISUSINGHWND.");
            break;

        // No clipper object attached to surface object
        case DDERR_NOCLIPPERATTACHED:
            hsAssert(false, "DDERR_NOCLIPPERATTACHED.");
            break;

        // Clipper notification requires an HWND or
        // no HWND has previously been set as the CooperativeLevel HWND.
        case DDERR_NOHWND:
            hsAssert(false, "DDERR_NOHWND.");
            break;

        // HWND used by DirectDraw CooperativeLevel has been subclassed,
        // this prevents DirectDraw from restoring state.
        case DDERR_HWNDSUBCLASSED:
            hsAssert(false, "DDERR_HWNDSUBCLASSED.");
            break;

        // The CooperativeLevel HWND has already been set.
        // It can not be reset while the process has surfaces or palettes created.
        case DDERR_HWNDALREADYSET:
            hsAssert(false, "DDERR_HWNDALREADYSET.");
            break;

        // No palette object attached to this surface.
        case DDERR_NOPALETTEATTACHED:
            hsAssert(false, "DDERR_NOPALETTEATTACHED.");
            break;

        // No hardware support for 16 or 256 color palettes.
        case DDERR_NOPALETTEHW:
            hsAssert(false, "DDERR_NOPALETTEHW.");
            break;

        // If a clipper object is attached to the source surface passed into a
        // BltFast call.
        case DDERR_BLTFASTCANTCLIP:
            hsAssert(false, "DDERR_BLTFASTCANTCLIP.");
            break;

        // No blter.
        case DDERR_NOBLTHW:
            hsAssert(false, "DDERR_NOBLTHW.");
            break;

        // No DirectDraw ROP hardware.
        case DDERR_NODDROPSHW:
            hsAssert(false, "DDERR_NODDROPSHW.");
            break;

        // returned when GetOverlayPosition is called on a hidden overlay
        case DDERR_OVERLAYNOTVISIBLE:
            hsAssert(false, "DDERR_OVERLAYNOTVISIBLE.");
            break;

        // returned when GetOverlayPosition is called on a overlay that UpdateOverlay
        // has never been called on to establish a destionation.
        case DDERR_NOOVERLAYDEST:
            hsAssert(false, "DDERR_NOOVERLAYDEST.");
            break;

        // returned when the position of the overlay on the destionation is no longer
        // legal for that destionation.
        case DDERR_INVALIDPOSITION:
            hsAssert(false, "DDERR_INVALIDPOSITION.");
            break;

        // returned when an overlay member is called for a non-overlay surface
        case DDERR_NOTAOVERLAYSURFACE:
            hsAssert(false, "DDERR_NOTAOVERLAYSURFACE.");
            break;

        // An attempt was made to set the cooperative level when it was already
        // set to exclusive.
        case DDERR_EXCLUSIVEMODEALREADYSET:
            hsAssert(false, "DDERR_EXCLUSIVEMODEALREADYSET.");
            break;

        // An attempt has been made to flip a surface that is not flippable.
        case DDERR_NOTFLIPPABLE:
            hsAssert(false, "DDERR_NOTFLIPPABLE.");
            break;

        // Can't duplicate primary & 3D surfaces, or surfaces that are implicitly
        // created.
        case DDERR_CANTDUPLICATE:
            hsAssert(false, "DDERR_CANTDUPLICATE.");
            break;

        // Surface was not locked.  An attempt to unlock a surface that was not
        // locked at all, or by this process, has been attempted.
        case DDERR_NOTLOCKED:
            hsAssert(false, "DDERR_NOTLOCKED.");
            break;

        // Windows can not create any more DCs, or a DC was requested for a paltte-indexed
        // surface when the surface had no palette AND the display mode was not palette-indexed
        // (in this case DirectDraw cannot select a proper palette into the DC)
        case DDERR_CANTCREATEDC:
            hsAssert(false, "DDERR_CANTCREATEDC.");
            break;

        // No DC was ever created for this surface.
        case DDERR_NODC:
            hsAssert(false, "DDERR_NODC.");
            break;

        // This surface can not be restored because it was created in a different
        // mode.
        case DDERR_WRONGMODE:
            hsAssert(false, "DDERR_WRONGMODE.");
            break;

        // This surface can not be restored because it is an implicitly created
        // surface.
        case DDERR_IMPLICITLYCREATED:
            hsAssert(false, "DDERR_IMPLICITLYCREATED.");
            break;

        // The surface being used is not a palette-based surface
        case DDERR_NOTPALETTIZED:
            hsAssert(false, "DDERR_NOTPALETTIZED.");
            break;

        // The display is currently in an unsupported mode
        case DDERR_UNSUPPORTEDMODE:
            hsAssert(false, "DDERR_UNSUPPORTEDMODE.");
            break;

        // Operation could not be carried out because there is no mip-map
        // texture mapping hardware present or available.
        case DDERR_NOMIPMAPHW:
            hsAssert(false, "DDERR_NOMIPMAPHW.");
            break;

        // The requested action could not be performed because the surface was of
        // the wrong type.
        case DDERR_INVALIDSURFACETYPE:
            hsAssert(false, "DDERR_INVALIDSURFACETYPE.");
            break;

        // Device does not support optimized surfaces, therefore no video memory optimized surfaces
        case DDERR_NOOPTIMIZEHW:
            hsAssert(false, "DDERR_NOOPTIMIZEHW.");
            break;

        // Surface is an optimized surface, but has not yet been allocated any memory
        case DDERR_NOTLOADED:
            hsAssert(false, "DDERR_NOTLOADED.");
            break;

        // Attempt was made to create or set a device window without first setting
        // the focus window
        case DDERR_NOFOCUSWINDOW:
            hsAssert(false, "DDERR_NOFOCUSWINDOW.");
            break;

        // A DC has already been returned for this surface. Only one DC can be
        // retrieved per surface.
        case DDERR_DCALREADYCREATED:
            hsAssert(false, "DDERR_DCALREADYCREATED.");
            break;

        // An attempt was made to allocate non-local video memory from a device
        // that does not support non-local video memory.
        case DDERR_NONONLOCALVIDMEM:
            hsAssert(false, "DDERR_NONONLOCALVIDMEM.");
            break;

        // The attempt to page lock a surface failed.
        case DDERR_CANTPAGELOCK:
            hsAssert(false, "DDERR_CANTPAGELOCK.");
            break;

        // The attempt to page unlock a surface failed.
        case DDERR_CANTPAGEUNLOCK:
            hsAssert(false, "DDERR_CANTPAGEUNLOCK.");
            break;

        // An attempt was made to page unlock a surface with no outstanding page locks.
        case DDERR_NOTPAGELOCKED:
            hsAssert(false, "DDERR_NOTPAGELOCKED.");
            break;

        // There is more data available than the specified buffer size could hold
        case DDERR_MOREDATA:
            hsAssert(false, "DDERR_MOREDATA.");
            break;

        // The data has expired and is therefore no longer valid.
        case DDERR_EXPIRED:
            hsAssert(false, "DDERR_EXPIRED.");
            break;

        // The video port is not active
        case DDERR_VIDEONOTACTIVE:
            hsAssert(false, "DDERR_VIDEONOTACTIVE.");
            break;

        // Surfaces created by one direct draw device cannot be used directly by
        // another direct draw device.
        case DDERR_DEVICEDOESNTOWNSURFACE:
            hsAssert(false, "DDERR_DEVICEDOESNTOWNSURFACE.");
            break;

        // An attempt was made to invoke an interface member of a DirectDraw object
        // created by CoCreateInstance() before it was initialized.
        case DDERR_NOTINITIALIZED:
            hsAssert(false, "DDERR_NOTINITIALIZED.");
            break;

        default:
            hsAssert(false, "Unknown error.");
            break;
    }
}
#endif

hsBool hsDXTDirectXCodec::ColorizeCompMipmap( plMipmap *bMap, const UInt8 *colorMask )
{
    return false;
}