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Kaydet (Commit) 80c591ea authored tarafından Caolán McNamara's avatar Caolán McNamara
Dosyalara gözat
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in reality we are limited to max sal_Int32 here 

so accept that and test if the values were accepted or limited

Change-Id: I599cf8065a6f8786d380fdba03135857766770f3
üst 9f27e5b0
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Showing with 27 additions and 27 deletions
filter/source/graphicfilter/itiff/itiff.cxx
Dosyayı görüntüle @ 80c591ea
......@@ -65,8 +65,8 @@ private:
sal_uLong nNewSubFile;
sal_uLong nSubFile;
sal_uLong nImageWidth; // picture width in pixels
sal_uLong nImageLength; // picture height in pixels
sal_Int32 nImageWidth; // picture width in pixels
sal_Int32 nImageLength; // picture height in pixels
sal_uLong nBitsPerSample; // bits per pixel per layer
sal_uLong nCompression; // kind of compression
sal_uLong nPhotometricInterpretation;
......@@ -116,7 +116,7 @@ private:
// Create the bitmap from the temporary bitmap pMap
// and partly deletes pMap while doing this.
bool ConvertScanline( sal_uLong nY );
bool ConvertScanline(sal_Int32 nY);
// converts a Scanline to the Windows-BMP format
bool HasAlphaChannel() const;
......@@ -537,13 +537,13 @@ bool TIFFReader::ReadMap()
{
if ( nCompression == 1 || nCompression == 32771 )
{
sal_uLong ny, np, nStrip, nStripBytesPerRow;
sal_uLong np, nStrip, nStripBytesPerRow;
if ( nCompression == 1 )
nStripBytesPerRow = nBytesPerRow;
else
nStripBytesPerRow = ( nBytesPerRow + 1 ) & 0xfffffffe;
for ( ny = 0; ny < nImageLength; ny++ )
for (sal_Int32 ny = 0; ny < nImageLength; ++ny)
{
for ( np = 0; np < nPlanes; np++ )
{
......@@ -561,7 +561,7 @@ bool TIFFReader::ReadMap()
}
else if ( nCompression == 2 || nCompression == 3 || nCompression == 4 )
{
sal_uLong ny, np, nStrip, nOptions;
sal_uLong np, nStrip, nOptions;
if ( nCompression == 2 )
{
nOptions = CCI_OPTION_BYTEALIGNROW;
......@@ -596,7 +596,7 @@ bool TIFFReader::ReadMap()
aCCIDecom.StartDecompression( *pTIFF );
for ( ny = 0; ny < nImageLength; ny++ )
for (sal_Int32 ny = 0; ny < nImageLength; ++ny)
{
for ( np = 0; np < nPlanes; np++ )
{
......@@ -620,13 +620,13 @@ bool TIFFReader::ReadMap()
else if ( nCompression == 5 )
{
LZWDecompressor aLZWDecom;
sal_uLong ny, np, nStrip;
sal_uLong np, nStrip;
nStrip=0;
if ( nStrip >= nNumStripOffsets )
return false;
pTIFF->Seek(pStripOffsets[nStrip]);
aLZWDecom.StartDecompression(*pTIFF);
for ( ny = 0; ny < nImageLength; ny++ )
for (sal_Int32 ny = 0; ny < nImageLength; ++ny)
{
for ( np = 0; np < nPlanes; np++ )
{
......@@ -647,13 +647,13 @@ bool TIFFReader::ReadMap()
}
else if ( nCompression == 32773 )
{
sal_uLong nStrip,nRecCount,nRowBytesLeft,ny,np,i;
sal_uLong nStrip,nRecCount,nRowBytesLeft,np,i;
sal_uInt8 * pdst;
nStrip = 0;
if ( nStrip >= nNumStripOffsets )
return false;
pTIFF->Seek(pStripOffsets[nStrip]);
for ( ny = 0; ny < nImageLength; ny++ )
for (sal_Int32 ny = 0; ny < nImageLength; ++ny)
{
for ( np = 0; np < nPlanes; np++ )
{
......@@ -767,9 +767,9 @@ sal_uLong TIFFReader::GetBits( const sal_uInt8 * pSrc, sal_uLong nBitsPos, sal_u
bool TIFFReader::ConvertScanline( sal_uLong nY )
bool TIFFReader::ConvertScanline(sal_Int32 nY)
{
sal_uInt32 nRed, nGreen, nBlue, ns, nx, nVal, nByteCount;
sal_uInt32 nRed, nGreen, nBlue, ns, nVal, nByteCount;
sal_uInt8 nByteVal;
if ( nDstBitsPerPixel == 24 )
......@@ -786,7 +786,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
sal_uInt8 nLGreen = 0;
sal_uInt8 nLBlue = 0;
sal_uInt8 nLAlpha = 0;
for ( nx = 0; nx < nImageWidth; nx++, pt += nSamplesPerPixel )
for (sal_Int32 nx = 0; nx < nImageWidth; nx++, pt += nSamplesPerPixel)
{
nLRed = nLRed + pt[ 0 ];
nLGreen = nLGreen + pt[ 1 ];
......@@ -801,7 +801,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
}
else
{
for ( nx = 0; nx < nImageWidth; nx++, pt += nSamplesPerPixel )
for (sal_Int32 nx = 0; nx < nImageWidth; nx++, pt += nSamplesPerPixel)
{
pAcc->SetPixel( nY, nx, Color( pt[0], pt[1], pt[2] ) );
if (nSamplesPerPixel >= 4 && pMaskAcc)
......@@ -817,7 +817,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
if ( nMaxSampleValue > nMinSampleValue )
{
sal_uLong nMinMax = nMinSampleValue * 255 / ( nMaxSampleValue - nMinSampleValue );
for ( nx = 0; nx < nImageWidth; nx++ )
for (sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
if ( nPlanes < 3 )
{
......@@ -840,7 +840,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
if ( nMaxSampleValue > nMinSampleValue )
{
sal_uLong nMinMax = nMinSampleValue * 255 / ( nMaxSampleValue - nMinSampleValue );
for ( nx = 0; nx < nImageWidth; nx++ )
for (sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
if ( nPlanes < 3 )
{
......@@ -868,7 +868,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
sal_uInt8 nSamp[ 4 ];
sal_uInt8 nSampLast[ 4 ] = { 0, 0, 0, 0 };
for( nx = 0; nx < nImageWidth; nx++ )
for(sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
// are the values being saved as difference?
if( 2 == nPredictor )
......@@ -921,7 +921,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
if ( nPredictor == 2 )
{
sal_uInt8 nLast = 0;
for ( nx = 0; nx < nImageWidth; nx++ )
for (sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
nLast += nx == 0 ? BYTESWAP( (sal_uInt8)*pt++ ) : *pt++;
pAcc->SetPixelIndex( nY, nx, nLast );
......@@ -929,7 +929,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
}
else
{
for ( nx = 0; nx < nImageWidth; nx++ )
for (sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
sal_uInt8 nLast = *pt++;
pAcc->SetPixelIndex( nY, nx, static_cast<sal_uInt8>( (BYTESWAP((sal_uLong)nLast) - nMinSampleValue) * nMinMax ) );
......@@ -941,7 +941,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
if ( nPredictor == 2 )
{
sal_uInt8 nLast = 0;
for ( nx = 0; nx < nImageWidth; nx++ )
for (sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
nLast += *pt++;
pAcc->SetPixelIndex( nY, nx, nLast );
......@@ -949,7 +949,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
}
else
{
for ( nx = 0; nx < nImageWidth; nx++ )
for (sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
pAcc->SetPixelIndex( nY, nx, static_cast<sal_uInt8>( ((sal_uLong)*pt++ - nMinSampleValue) * nMinMax ) );
......@@ -966,7 +966,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
case 3 :
case 2 :
{
for ( nx = 0; nx < nImageWidth; nx++ )
for (sal_Int32 nx = 0; nx < nImageWidth; ++nx)
{
nVal = ( GetBits( pt, nx * nBitsPerSample, nBitsPerSample ) - nMinSampleValue ) * nMinMax;
pAcc->SetPixelIndex( nY, nx, static_cast<sal_uInt8>(nVal));
......@@ -978,7 +978,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
{
if ( bByteSwap )
{
nx = 0;
sal_Int32 nx = 0;
nByteCount = ( nImageWidth >> 3 ) + 1;
while ( --nByteCount )
{
......@@ -1011,7 +1011,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
}
else
{
nx = 7;
sal_Int32 nx = 7;
nByteCount = ( nImageWidth >> 3 ) + 1;
while ( --nByteCount )
{
......@@ -1059,7 +1059,7 @@ bool TIFFReader::ConvertScanline( sal_uLong nY )
{
sal_uLong nMinMax = ( ( 1 << 8 /*nDstBitsPerPixel*/ ) - 1 ) / ( nMaxSampleValue - nMinSampleValue );
sal_uInt8* pt = pMap[ 0 ];
for ( nx = 0; nx < nImageWidth; nx++, pt += 2 )
for (sal_Int32 nx = 0; nx < nImageWidth; nx++, pt += 2 )
{
pAcc->SetPixelIndex( nY, nx, static_cast<sal_uInt8>( ((sal_uLong)*pt - nMinSampleValue) * nMinMax) );
}
......@@ -1329,7 +1329,7 @@ bool TIFFReader::ReadTIFF(SvStream & rTIFF, Graphic & rGraphic )
Size aTargetSize( nImageWidth, nImageLength );
aBitmap = Bitmap( aTargetSize, nDstBitsPerPixel );
pAcc = aBitmap.AcquireWriteAccess();
if ( pAcc )
if (pAcc && pAcc->Width() == nImageWidth && pAcc->Height() == nImageLength)
{
if ( nPlanarConfiguration == 1 )
nPlanes = 1;
......
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