STDMETHODIMP CDecoder::Read(void *data, UInt32 size, UInt32 *processedSize)
{
if (_inBuf == 0 || !_propsWereSet)
return S_FALSE;
if (!_state)
{
if (CreateDecompressor() != S_OK)
return E_FAIL;
}
if (processedSize)
*processedSize = 0;
while (size != 0)
{
bool eofFlag = false;
if (_inPos == _inSize)
{
_inPos = _inSize = 0;
RINOK(_inStream->Read(_inBuf, _inBufSizeAllocated, &_inSize));
if (!_inSize)
eofFlag = true;
}
lzham_uint8 *pIn_bytes = _inBuf + _inPos;
size_t num_in_bytes = _inSize - _inPos;
lzham_uint8* pOut_bytes = (lzham_uint8*)data;
size_t out_num_bytes = size;
lzham_decompress_status_t status = lzham_decompress(_state, pIn_bytes, &num_in_bytes, pOut_bytes, &out_num_bytes, eofFlag);
if (num_in_bytes)
{
_inPos += (UInt32)num_in_bytes;
_inSizeProcessed += num_in_bytes;
}
if (out_num_bytes)
{
_outSizeProcessed += out_num_bytes;
size -= (UInt32)out_num_bytes;
if (processedSize)
*processedSize += (UInt32)out_num_bytes;
}
if (status >= LZHAM_DECOMP_STATUS_FIRST_FAILURE_CODE)
return S_FALSE;
if (status == LZHAM_DECOMP_STATUS_SUCCESS)
break;
}
return S_OK;
}
HRESULT CDecoder::SetOutStreamSizeResume(const UInt64 *outSize)
{
_outSizeDefined = (outSize != NULL);
if (_outSizeDefined)
_outSize = *outSize;
_outSizeProcessed = 0;
RINOK(CreateDecompressor());
return S_OK;
}
HRESULT CDecoder::CodeSpec(ISequentialInStream *inStream, ISequentialOutStream *outStream, ICompressProgressInfo *progress)
{
if (_inBuf == 0 || !_propsWereSet)
return S_FALSE;
if (!_state)
{
if (CreateDecompressor() != S_OK)
return E_FAIL;
}
UInt64 startInProgress = _inSizeProcessed;
for (;;)
{
bool eofFlag = false;
if (_inPos == _inSize)
{
_inPos = _inSize = 0;
RINOK(inStream->Read(_inBuf, _inBufSizeAllocated, &_inSize));
if (!_inSize)
eofFlag = true;
}
lzham_uint8 *pIn_bytes = _inBuf + _inPos;
size_t num_in_bytes = _inSize - _inPos;
lzham_uint8* pOut_bytes = _outBuf;
size_t out_num_bytes = _outBufSize;
if (_outSizeDefined)
{
UInt64 out_remaining = _outSize - _outSizeProcessed;
if (out_num_bytes > out_remaining)
out_num_bytes = static_cast<size_t>(out_remaining);
}
lzham_decompress_status_t status = lzham_decompress(_state, pIn_bytes, &num_in_bytes, pOut_bytes, &out_num_bytes, eofFlag);
if (num_in_bytes)
{
_inPos += (UInt32)num_in_bytes;
_inSizeProcessed += (UInt32)num_in_bytes;
}
if (out_num_bytes)
{
_outSizeProcessed += out_num_bytes;
RINOK(WriteStream(outStream, _outBuf, out_num_bytes));
}
if (status >= LZHAM_DECOMP_STATUS_FIRST_FAILURE_CODE)
return S_FALSE;
if (status == LZHAM_DECOMP_STATUS_SUCCESS)
break;
UInt64 inSize = _inSizeProcessed - startInProgress;
if (progress)
{
RINOK(progress->SetRatioInfo(&inSize, &_outSizeProcessed));
}
}
return S_OK;
}
static Boolean DoDITLTextButton( short message, DITLItem *theItem, short keyPress )
{
Boolean done;
TextButtGraphicsPriv * state;
done = false;
switch ( message )
{
case kInitDITLElement:
theItem->refCon = 0;
state = NewMemory ( false, sizeof(TextButtGraphicsPriv) );
if ( state )
{
theItem->refCon = (long) state;
state->textSprite = 0;
state->buttReference = nil;
state->animatorProc = nil;
state->buttonID = 0;
state->currentFrame = 0;
state->toKeepDictCached = nil;
}
break;
case kRenderDITLElement:
RenderDITLTextButton( theItem );
break;
case kSelectDITLElement:
SelectDITLTextButton( theItem );
break;
case kDeselectDITLElement:
DeselectDITLTextButton( theItem );
break;
case kClickDITLElement:
done = ClickDITLTextButton( theItem, keyPress );
break;
case kCloseDITLElement:
state = (TextButtGraphicsPriv *) theItem->refCon;
if ( state )
{
if (state->animatorProc)
{
RemoveTimeRequest( state->animatorProc );
state->animatorProc = nil;
}
if ( state->textSprite )
{
DisposeSprite ( state->textSprite );
}
if ( state->buttReference )
{
DisposeGraphicReference ( state->buttReference );
}
if ( state->toKeepDictCached )
{
Decompressor dec = CreateDecompressor(
GetDBButtonFrame( state->buttonID, kAnimationFrames ), 0, 0 );
ReleaseDecompressorCache( dec, state->toKeepDictCached );
DisposeDecompressor( dec );
}
DisposeMemory (state );
}
break;
default:
ERROR_MESG( "Got an illegal selector in DoDITLTextButton" );
}
return done;
}