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author | Ivo Hinkelmann <ihi@openoffice.org> | 2011-03-29 18:14:38 +0200 |
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committer | Ivo Hinkelmann <ihi@openoffice.org> | 2011-03-29 18:14:38 +0200 |
commit | 4296c7c855220334c38aaa9075287b7537ef544f (patch) | |
tree | eb9ba12adb8cdfc75529197abbd20c9fba820069 /svtools | |
parent | masterfix DEV300: skip .hg subdirs (diff) | |
parent | rsvglibs: rebased to DEV300_m104 (diff) | |
download | core-4296c7c855220334c38aaa9075287b7537ef544f.tar.gz core-4296c7c855220334c38aaa9075287b7537ef544f.zip |
CWS-TOOLING: integrate CWS rsvglibs
Diffstat (limited to 'svtools')
-rw-r--r-- | svtools/source/filter.vcl/jpeg/jpeg.cxx | 777 | ||||
-rw-r--r-- | svtools/source/filter.vcl/jpeg/jpegc.c | 284 |
2 files changed, 1061 insertions, 0 deletions
diff --git a/svtools/source/filter.vcl/jpeg/jpeg.cxx b/svtools/source/filter.vcl/jpeg/jpeg.cxx new file mode 100644 index 000000000000..da1edf8449e4 --- /dev/null +++ b/svtools/source/filter.vcl/jpeg/jpeg.cxx @@ -0,0 +1,777 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_svtools.hxx" + +#include <tools/solar.h> + +extern "C" +{ + #include "stdio.h" + #include "jpeg.h" + #include "jpeg/jpeglib.h" + #include "jpeg/jerror.h" +} + +#define _JPEGPRIVATE +#include <vcl/bmpacc.hxx> +#include "jpeg.hxx" +#include <svtools/FilterConfigItem.hxx> +#include <svtools/filter.hxx> + +// ----------- +// - Defines - +// ----------- + +using namespace ::com::sun::star; + +#define JPEGMINREAD 512 + +// ------------- +// - (C-Calls) - +// ------------- + +// ------------------------------------------------------------------------ + +extern "C" void* CreateBitmap( void* pJPEGReader, void* pJPEGCreateBitmapParam ) +{ + return ( (JPEGReader*) pJPEGReader )->CreateBitmap( pJPEGCreateBitmapParam ); +} + +// ------------------------------------------------------------------------ + +extern "C" void* GetScanline( void* pJPEGWriter, long nY ) +{ + return ( (JPEGWriter*) pJPEGWriter )->GetScanline( nY ); +} + +// ------------------------------------------------------------------------ + +struct JPEGCallbackStruct +{ + uno::Reference< task::XStatusIndicator > xStatusIndicator; +}; + +extern "C" long JPEGCallback( void* pCallbackData, long nPercent ) +{ + JPEGCallbackStruct* pS = (JPEGCallbackStruct*)pCallbackData; + if ( pS && pS->xStatusIndicator.is() ) + { + pS->xStatusIndicator->setValue( nPercent ); + } + return 0L; +} + +#define BUF_SIZE 4096 + +typedef struct +{ + struct jpeg_destination_mgr pub; /* public fields */ + + SvStream* outfile; /* target stream */ + JOCTET * buffer; /* start of buffer */ +} my_destination_mgr; + +typedef my_destination_mgr * my_dest_ptr; + +extern "C" void init_destination (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + + /* Allocate the output buffer --- it will be released when done with image */ + dest->buffer = (JOCTET *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + BUF_SIZE * sizeof(JOCTET)); + + dest->pub.next_output_byte = dest->buffer; + dest->pub.free_in_buffer = BUF_SIZE; +} + +extern "C" int empty_output_buffer (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + + if (dest->outfile->Write(dest->buffer, BUF_SIZE) != + (size_t) BUF_SIZE) + ERREXIT(cinfo, JERR_FILE_WRITE); + + dest->pub.next_output_byte = dest->buffer; + dest->pub.free_in_buffer = BUF_SIZE; + + return sal_True; +} + +extern "C" void term_destination (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + size_t datacount = BUF_SIZE - dest->pub.free_in_buffer; + + /* Write any data remaining in the buffer */ + if (datacount > 0) { + if (dest->outfile->Write(dest->buffer, datacount) != datacount) + ERREXIT(cinfo, JERR_FILE_WRITE); + } +} + +extern "C" void jpeg_svstream_dest (j_compress_ptr cinfo, void* out) +{ + SvStream * outfile = (SvStream*)out; + my_dest_ptr dest; + + /* The destination object is made permanent so that multiple JPEG images + * can be written to the same file without re-executing jpeg_svstream_dest. + * This makes it dangerous to use this manager and a different destination + * manager serially with the same JPEG object, because their private object + * sizes may be different. Caveat programmer. + */ + if (cinfo->dest == NULL) { /* first time for this JPEG object? */ + cinfo->dest = (struct jpeg_destination_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + sizeof(my_destination_mgr)); + } + + dest = (my_dest_ptr) cinfo->dest; + dest->pub.init_destination = init_destination; + dest->pub.empty_output_buffer = empty_output_buffer; + dest->pub.term_destination = term_destination; + dest->outfile = outfile; +} + +/* Expanded data source object for stdio input */ + +typedef struct { + struct jpeg_source_mgr pub; /* public fields */ + + SvStream * infile; /* source stream */ + JOCTET * buffer; /* start of buffer */ + boolean start_of_file; /* have we gotten any data yet? */ +} my_source_mgr; + +typedef my_source_mgr * my_src_ptr; + +/* + * Initialize source --- called by jpeg_read_header + * before any data is actually read. + */ + +extern "C" void init_source (j_decompress_ptr cinfo) +{ + my_src_ptr src = (my_src_ptr) cinfo->src; + + /* We reset the empty-input-file flag for each image, + * but we don't clear the input buffer. + * This is correct behavior for reading a series of images from one source. + */ + src->start_of_file = sal_True; +} + +long StreamRead( SvStream* pSvStm, void* pBuffer, long nBufferSize ) +{ + long nRead; + + if( pSvStm->GetError() != ERRCODE_IO_PENDING ) + { + long nActPos = pSvStm->Tell(); + + nRead = (long) pSvStm->Read( pBuffer, nBufferSize ); + + if( pSvStm->GetError() == ERRCODE_IO_PENDING ) + { + nRead = 0; + + // Damit wir wieder an die alte Position + // seeken koennen, setzen wir den Error temp.zurueck + pSvStm->ResetError(); + pSvStm->Seek( nActPos ); + pSvStm->SetError( ERRCODE_IO_PENDING ); + } + } + else + nRead = 0; + + return nRead; +} + +extern "C" int fill_input_buffer (j_decompress_ptr cinfo) +{ + my_src_ptr src = (my_src_ptr) cinfo->src; + size_t nbytes; + + nbytes = StreamRead(src->infile, src->buffer, BUF_SIZE); + + if (nbytes <= 0) { + if (src->start_of_file) /* Treat empty input file as fatal error */ + ERREXIT(cinfo, JERR_INPUT_EMPTY); + WARNMS(cinfo, JWRN_JPEG_EOF); + /* Insert a fake EOI marker */ + src->buffer[0] = (JOCTET) 0xFF; + src->buffer[1] = (JOCTET) JPEG_EOI; + nbytes = 2; + } + + src->pub.next_input_byte = src->buffer; + src->pub.bytes_in_buffer = nbytes; + src->start_of_file = sal_False; + + return sal_True; +} + +extern "C" void skip_input_data (j_decompress_ptr cinfo, long num_bytes) +{ + my_src_ptr src = (my_src_ptr) cinfo->src; + + /* Just a dumb implementation for now. Could use fseek() except + * it doesn't work on pipes. Not clear that being smart is worth + * any trouble anyway --- large skips are infrequent. + */ + if (num_bytes > 0) { + while (num_bytes > (long) src->pub.bytes_in_buffer) { + num_bytes -= (long) src->pub.bytes_in_buffer; + (void) fill_input_buffer(cinfo); + /* note we assume that fill_input_buffer will never return sal_False, + * so suspension need not be handled. + */ + } + src->pub.next_input_byte += (size_t) num_bytes; + src->pub.bytes_in_buffer -= (size_t) num_bytes; + } +} + +extern "C" void term_source (j_decompress_ptr) +{ + /* no work necessary here */ +} + +extern "C" void jpeg_svstream_src (j_decompress_ptr cinfo, void * in) +{ + my_src_ptr src; + SvStream * infile = (SvStream*)in; + + /* The source object and input buffer are made permanent so that a series + * of JPEG images can be read from the same file by calling jpeg_stdio_src + * only before the first one. (If we discarded the buffer at the end of + * one image, we'd likely lose the start of the next one.) + * This makes it unsafe to use this manager and a different source + * manager serially with the same JPEG object. Caveat programmer. + */ + if (cinfo->src == NULL) { /* first time for this JPEG object? */ + cinfo->src = (struct jpeg_source_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + sizeof(my_source_mgr)); + src = (my_src_ptr) cinfo->src; + src->buffer = (JOCTET *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + BUF_SIZE * sizeof(JOCTET)); + } + + src = (my_src_ptr) cinfo->src; + src->pub.init_source = init_source; + src->pub.fill_input_buffer = fill_input_buffer; + src->pub.skip_input_data = skip_input_data; + src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */ + src->pub.term_source = term_source; + src->infile = infile; + src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */ + src->pub.next_input_byte = NULL; /* until buffer loaded */ +} + +// -------------- +// - JPEGReader - +// -------------- + +JPEGReader::JPEGReader( SvStream& rStm, void* /*pCallData*/, sal_Bool bSetLS ) : + rIStm ( rStm ), + pAcc ( NULL ), + pAcc1 ( NULL ), + pBuffer ( NULL ), + nLastPos ( rStm.Tell() ), + nLastLines ( 0 ), + bSetLogSize ( bSetLS ) +{ + maUpperName = String::CreateFromAscii( "SVIJPEG", 7 ); + nFormerPos = nLastPos; +} + +// ------------------------------------------------------------------------ + +JPEGReader::~JPEGReader() +{ + if( pBuffer ) + rtl_freeMemory( pBuffer ); + + if( pAcc ) + aBmp.ReleaseAccess( pAcc ); + + if( pAcc1 ) + aBmp1.ReleaseAccess( pAcc1 ); +} + +// ------------------------------------------------------------------------ + +void* JPEGReader::CreateBitmap( void* pParam ) +{ + Size aSize( ((JPEGCreateBitmapParam*)pParam)->nWidth, + ((JPEGCreateBitmapParam*)pParam)->nHeight ); + sal_Bool bGray = ((JPEGCreateBitmapParam*)pParam)->bGray != 0; + + void* pBmpBuf = NULL; + + if( pAcc ) + aBmp.ReleaseAccess( pAcc ); + + if( bGray ) + { + BitmapPalette aGrayPal( 256 ); + + for( sal_uInt16 n = 0; n < 256; n++ ) + { + const sal_uInt8 cGray = (sal_uInt8) n; + aGrayPal[ n ] = BitmapColor( cGray, cGray, cGray ); + } + + aBmp = Bitmap( aSize, 8, &aGrayPal ); + } + else + aBmp = Bitmap( aSize, 24 ); + + if ( bSetLogSize ) + { + unsigned long nUnit = ((JPEGCreateBitmapParam*)pParam)->density_unit; + + if( ( ( 1 == nUnit ) || ( 2 == nUnit ) ) && + ( (JPEGCreateBitmapParam*) pParam )->X_density && + ( (JPEGCreateBitmapParam*) pParam )->Y_density ) + { + Point aEmptyPoint; + Fraction aFractX( 1, ((JPEGCreateBitmapParam*)pParam)->X_density ); + Fraction aFractY( 1, ((JPEGCreateBitmapParam*)pParam)->Y_density ); + MapMode aMapMode( nUnit == 1 ? MAP_INCH : MAP_CM, aEmptyPoint, aFractX, aFractY ); + Size aPrefSize = OutputDevice::LogicToLogic( aSize, aMapMode, MAP_100TH_MM ); + + aBmp.SetPrefSize( aPrefSize ); + aBmp.SetPrefMapMode( MapMode( MAP_100TH_MM ) ); + } + } + + pAcc = aBmp.AcquireWriteAccess(); + + if( pAcc ) + { + long nAlignedWidth; + + const sal_uLong nFormat = pAcc->GetScanlineFormat(); + + if( + ( bGray && ( BMP_FORMAT_8BIT_PAL == nFormat ) ) || + ( !bGray && ( BMP_FORMAT_24BIT_TC_RGB == nFormat ) ) + ) + { + pBmpBuf = pAcc->GetBuffer(); + nAlignedWidth = pAcc->GetScanlineSize(); + ((JPEGCreateBitmapParam*)pParam)->bTopDown = pAcc->IsTopDown(); + } + else + { + nAlignedWidth = AlignedWidth4Bytes( aSize.Width() * ( bGray ? 8 : 24 ) ); + ((JPEGCreateBitmapParam*)pParam)->bTopDown = sal_True; + pBmpBuf = pBuffer = rtl_allocateMemory( nAlignedWidth * aSize.Height() ); + } + ((JPEGCreateBitmapParam*)pParam)->nAlignedWidth = nAlignedWidth; + } + + return pBmpBuf; +} + +// ------------------------------------------------------------------------ + +void JPEGReader::FillBitmap() +{ + if( pBuffer && pAcc ) + { + HPBYTE pTmp; + BitmapColor aColor; + long nAlignedWidth; + long nWidth = pAcc->Width(); + long nHeight = pAcc->Height(); + + if( pAcc->GetBitCount() == 8 ) + { + BitmapColor* pCols = new BitmapColor[ 256 ]; + + for( sal_uInt16 n = 0; n < 256; n++ ) + { + const sal_uInt8 cGray = (sal_uInt8) n; + pCols[ n ] = pAcc->GetBestMatchingColor( BitmapColor( cGray, cGray, cGray ) ); + } + + nAlignedWidth = AlignedWidth4Bytes( pAcc->Width() * 8L ); + + for( long nY = 0L; nY < nHeight; nY++ ) + { + pTmp = (sal_uInt8*) pBuffer + nY * nAlignedWidth; + + for( long nX = 0L; nX < nWidth; nX++ ) + pAcc->SetPixel( nY, nX, pCols[ *pTmp++ ] ); + } + + delete[] pCols; + } + else + { + nAlignedWidth = AlignedWidth4Bytes( pAcc->Width() * 24L ); + + for( long nY = 0L; nY < nHeight; nY++ ) + { + pTmp = (sal_uInt8*) pBuffer + nY * nAlignedWidth; + + for( long nX = 0L; nX < nWidth; nX++ ) + { + aColor.SetRed( *pTmp++ ); + aColor.SetGreen( *pTmp++ ); + aColor.SetBlue( *pTmp++ ); + pAcc->SetPixel( nY, nX, aColor ); + } + } + } + } +} + +// ------------------------------------------------------------------------ + +Graphic JPEGReader::CreateIntermediateGraphic( const Bitmap& rBitmap, long nLines ) +{ + Graphic aGraphic; + const Size aSizePix( rBitmap.GetSizePixel() ); + + if( !nLastLines ) + { + if( pAcc1 ) + aBmp1.ReleaseAccess( pAcc1 ); + + aBmp1 = Bitmap( rBitmap.GetSizePixel(), 1 ); + aBmp1.Erase( Color( COL_WHITE ) ); + pAcc1 = aBmp1.AcquireWriteAccess(); + } + + if( nLines && ( nLines < aSizePix.Height() ) ) + { + if( pAcc1 ) + { + const long nNewLines = nLines - nLastLines; + + if( nNewLines ) + { + pAcc1->SetFillColor( Color( COL_BLACK ) ); + pAcc1->FillRect( Rectangle( Point( 0, nLastLines ), + Size( pAcc1->Width(), nNewLines ) ) ); + } + + aBmp1.ReleaseAccess( pAcc1 ); + aGraphic = BitmapEx( rBitmap, aBmp1 ); + pAcc1 = aBmp1.AcquireWriteAccess(); + } + else + aGraphic = rBitmap; + } + else + aGraphic = rBitmap; + + nLastLines = nLines; + + return aGraphic; +} + +// ------------------------------------------------------------------------ + +ReadState JPEGReader::Read( Graphic& rGraphic ) +{ + long nEndPos; + long nLines; + ReadState eReadState; + sal_Bool bRet = sal_False; + sal_uInt8 cDummy; + +#if 1 // TODO: is it possible to get rid of this seek to the end? + // check if the stream's end is already available + rIStm.Seek( STREAM_SEEK_TO_END ); + rIStm >> cDummy; + nEndPos = rIStm.Tell(); + + // else check if at least JPEGMINREAD bytes can be read + if( rIStm.GetError() == ERRCODE_IO_PENDING ) + { + rIStm.ResetError(); + if( ( nEndPos - nFormerPos ) < JPEGMINREAD ) + { + rIStm.Seek( nLastPos ); + return JPEGREAD_NEED_MORE; + } + } + + // seek back to the original position + rIStm.Seek( nLastPos ); +#endif + + Size aPreviewSize = GetPreviewSize(); + SetJpegPreviewSizeHint( aPreviewSize.Width(), aPreviewSize.Height() ); + + // read the (partial) image + ReadJPEG( this, &rIStm, &nLines ); + + if( pAcc ) + { + if( pBuffer ) + { + FillBitmap(); + rtl_freeMemory( pBuffer ); + pBuffer = NULL; + } + + aBmp.ReleaseAccess( pAcc ); + pAcc = NULL; + + if( rIStm.GetError() == ERRCODE_IO_PENDING ) + rGraphic = CreateIntermediateGraphic( aBmp, nLines ); + else + rGraphic = aBmp; + + bRet = sal_True; + } + else if( rIStm.GetError() == ERRCODE_IO_PENDING ) + bRet = sal_True; + + // Status setzen ( Pending hat immer Vorrang ) + if( rIStm.GetError() == ERRCODE_IO_PENDING ) + { + eReadState = JPEGREAD_NEED_MORE; + rIStm.ResetError(); + nFormerPos = rIStm.Tell(); + } + else + { + if( bRet ) + eReadState = JPEGREAD_OK; + else + eReadState = JPEGREAD_ERROR; + } + + return eReadState; +} + + +// -------------- +// - JPEGWriter - +// -------------- + +JPEGWriter::JPEGWriter( SvStream& rStm, const uno::Sequence< beans::PropertyValue >* pFilterData, bool* pExportWasGrey ) : + rOStm ( rStm ), + pAcc ( NULL ), + pBuffer ( NULL ), + pExpWasGrey ( pExportWasGrey ) +{ + FilterConfigItem aConfigItem( (uno::Sequence< beans::PropertyValue >*)pFilterData ); + bGreys = aConfigItem.ReadInt32( String( RTL_CONSTASCII_USTRINGPARAM( "ColorMode" ) ), 0 ) != 0; + nQuality = aConfigItem.ReadInt32( String( RTL_CONSTASCII_USTRINGPARAM( "Quality" ) ), 75 ); + + if ( pFilterData ) + { + int nArgs = pFilterData->getLength(); + const beans::PropertyValue* pValues = pFilterData->getConstArray(); + while( nArgs-- ) + { + if( pValues->Name.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM( "StatusIndicator" ) ) ) + { + pValues->Value >>= xStatusIndicator; + } + pValues++; + } + } +} + +// ------------------------------------------------------------------------ + +void* JPEGWriter::GetScanline( long nY ) +{ + void* pScanline = NULL; + + if( pAcc ) + { + if( bNative ) + pScanline = pAcc->GetScanline( nY ); + else if( pBuffer ) + { + BitmapColor aColor; + long nWidth = pAcc->Width(); + sal_uInt8* pTmp = pBuffer; + + if( pAcc->HasPalette() ) + { + for( long nX = 0L; nX < nWidth; nX++ ) + { + aColor = pAcc->GetPaletteColor( (sal_uInt8) pAcc->GetPixel( nY, nX ) ); + *pTmp++ = aColor.GetRed(); + if ( bGreys ) + continue; + *pTmp++ = aColor.GetGreen(); + *pTmp++ = aColor.GetBlue(); + } + } + else + { + for( long nX = 0L; nX < nWidth; nX++ ) + { + aColor = pAcc->GetPixel( nY, nX ); + *pTmp++ = aColor.GetRed(); + if ( bGreys ) + continue; + *pTmp++ = aColor.GetGreen(); + *pTmp++ = aColor.GetBlue(); + } + } + + pScanline = pBuffer; + } + } + + return pScanline; +} + +// ------------------------------------------------------------------------ + +sal_Bool JPEGWriter::Write( const Graphic& rGraphic ) +{ + sal_Bool bRet = sal_False; + + if ( xStatusIndicator.is() ) + { + rtl::OUString aMsg; + xStatusIndicator->start( aMsg, 100 ); + } + + Bitmap aGraphicBmp( rGraphic.GetBitmap() ); + + if ( bGreys ) + { + if ( !aGraphicBmp.Convert( BMP_CONVERSION_8BIT_GREYS ) ) + aGraphicBmp = rGraphic.GetBitmap(); + } + + pAcc = aGraphicBmp.AcquireReadAccess(); + + if ( !bGreys ) // bitmap was not explicitely converted into greyscale, + { // check if source is greyscale only + + sal_Bool bIsGrey = sal_True; + + long nWidth = pAcc->Width(); + for ( long nY = 0; bIsGrey && ( nY < pAcc->Height() ); nY++ ) + { + BitmapColor aColor; + for( long nX = 0L; bIsGrey && ( nX < nWidth ); nX++ ) + { + aColor = pAcc->HasPalette() ? pAcc->GetPaletteColor( (sal_uInt8) pAcc->GetPixel( nY, nX ) ) + : pAcc->GetPixel( nY, nX ); + bIsGrey = ( aColor.GetRed() == aColor.GetGreen() ) && ( aColor.GetRed() == aColor.GetBlue() ); + } + } + if ( bIsGrey ) + bGreys = sal_True; + } + + if( pExpWasGrey ) + *pExpWasGrey = bGreys; + + if( pAcc ) + { + bNative = ( pAcc->GetScanlineFormat() == BMP_FORMAT_24BIT_TC_RGB ); + + if( !bNative ) + pBuffer = new sal_uInt8[ AlignedWidth4Bytes( bGreys ? pAcc->Width() * 8L : pAcc->Width() * 24L ) ]; + + JPEGCallbackStruct aCallbackData; + aCallbackData.xStatusIndicator = xStatusIndicator; + bRet = (sal_Bool) WriteJPEG( this, &rOStm, pAcc->Width(), pAcc->Height(), bGreys, nQuality, &aCallbackData ); + + delete[] pBuffer; + pBuffer = NULL; + + aGraphicBmp.ReleaseAccess( pAcc ); + pAcc = NULL; + } + if ( xStatusIndicator.is() ) + xStatusIndicator->end(); + + return bRet; +} + +// -------------- +// - ImportJPEG - +// -------------- + +sal_Bool ImportJPEG( SvStream& rStm, Graphic& rGraphic, void* pCallerData, sal_Int32 nImportFlags ) +{ + JPEGReader* pJPEGReader = (JPEGReader*) rGraphic.GetContext(); + ReadState eReadState; + sal_Bool bRet = sal_True; + + if( !pJPEGReader ) + pJPEGReader = new JPEGReader( rStm, pCallerData, ( nImportFlags & GRFILTER_I_FLAGS_SET_LOGSIZE_FOR_JPEG ) != 0 ); + + if( nImportFlags & GRFILTER_I_FLAGS_FOR_PREVIEW ) + pJPEGReader->SetPreviewSize( Size(128,128) ); + else + pJPEGReader->DisablePreviewMode(); + + rGraphic.SetContext( NULL ); + eReadState = pJPEGReader->Read( rGraphic ); + + if( eReadState == JPEGREAD_ERROR ) + { + bRet = sal_False; + delete pJPEGReader; + } + else if( eReadState == JPEGREAD_OK ) + delete pJPEGReader; + else + rGraphic.SetContext( pJPEGReader ); + + return bRet; +} + +// -------------- +// - ExportJPEG - +// -------------- + +sal_Bool ExportJPEG( SvStream& rOStm, const Graphic& rGraphic, + const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >* pFilterData, + bool* pExportWasGrey + ) +{ + JPEGWriter aJPEGWriter( rOStm, pFilterData, pExportWasGrey ); + return aJPEGWriter.Write( rGraphic ); +} diff --git a/svtools/source/filter.vcl/jpeg/jpegc.c b/svtools/source/filter.vcl/jpeg/jpegc.c new file mode 100644 index 000000000000..b51d37a4a163 --- /dev/null +++ b/svtools/source/filter.vcl/jpeg/jpegc.c @@ -0,0 +1,284 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#include <stdio.h> +#include <stdlib.h> +#include "setjmp.h" +#include "jpeg/jpeglib.h" +#include "jpeg/jerror.h" +#include "jpeg.h" +#include "rtl/alloc.h" +#include "osl/diagnose.h" + +struct my_error_mgr +{ + struct jpeg_error_mgr pub; + jmp_buf setjmp_buffer; +}; + +void jpeg_svstream_src (j_decompress_ptr cinfo, void* infile); +void jpeg_svstream_dest (j_compress_ptr cinfo, void* outfile); + +METHODDEF( void ) +my_error_exit (j_common_ptr cinfo) +{ + my_error_ptr myerr = (my_error_ptr) cinfo->err; + (*cinfo->err->output_message) (cinfo); + longjmp(myerr->setjmp_buffer, 1); +} + + +METHODDEF( void ) +my_output_message (j_common_ptr cinfo) +{ + char buffer[JMSG_LENGTH_MAX]; + (*cinfo->err->format_message) (cinfo, buffer); +} + +/* TODO: when incompatible changes are possible again + the preview size hint should be redone */ +static int nPreviewWidth = 0; +static int nPreviewHeight = 0; +void SetJpegPreviewSizeHint( int nWidth, int nHeight ) +{ + nPreviewWidth = nWidth; + nPreviewHeight = nHeight; +} + +void ReadJPEG( void* pJPEGReader, void* pIStm, long* pLines ) +{ + struct jpeg_decompress_struct cinfo; + struct my_error_mgr jerr; + struct JPEGCreateBitmapParam aCreateBitmapParam; + HPBYTE pDIB; + HPBYTE pTmp; + long nWidth; + long nHeight; + long nAlignedWidth; + JSAMPLE * range_limit; + HPBYTE pScanLineBuffer = NULL; + long nScanLineBufferComponents = 0; + // declare bDecompCreated volatile because of gcc + // warning: variable 'bDecompCreated' might be clobbered by `longjmp' or `vfork' + volatile long bDecompCreated = 0; + + /* Falls der Stream nicht ausreicht (IO_PENDING) + wird ueber ein longjmp in der Schleife nach Exit + gesprungen, wir geben dann die Anzahl + der bisher bearbeiteten Scanlines zurueck*/ + if ( setjmp( jerr.setjmp_buffer ) ) + goto Exit; + + cinfo.err = jpeg_std_error( &jerr.pub ); + jerr.pub.error_exit = my_error_exit; + jerr.pub.output_message = my_output_message; + + jpeg_create_decompress( &cinfo ); + bDecompCreated = 1; + jpeg_svstream_src( &cinfo, pIStm ); + jpeg_read_header( &cinfo, sal_True ); + + cinfo.scale_num = 1; + cinfo.scale_denom = 1; + cinfo.output_gamma = 1.0; + cinfo.raw_data_out = sal_False; + cinfo.quantize_colors = sal_False; + if ( cinfo.jpeg_color_space == JCS_YCbCr ) + cinfo.out_color_space = JCS_RGB; + else if ( cinfo.jpeg_color_space == JCS_YCCK ) + cinfo.out_color_space = JCS_CMYK; + + OSL_ASSERT(cinfo.out_color_space == JCS_CMYK || cinfo.out_color_space == JCS_GRAYSCALE || cinfo.out_color_space == JCS_RGB); + + /* change scale for preview import */ + if( nPreviewWidth || nPreviewHeight ) + { + if( nPreviewWidth == 0 ) { + nPreviewWidth = ( cinfo.image_width*nPreviewHeight )/cinfo.image_height; + if( nPreviewWidth <= 0 ) + nPreviewWidth = 1; + } else if( nPreviewHeight == 0 ) { + nPreviewHeight = ( cinfo.image_height*nPreviewWidth )/cinfo.image_width; + if( nPreviewHeight <= 0 ) + nPreviewHeight = 1; + } + + for( cinfo.scale_denom = 1; cinfo.scale_denom < 8; cinfo.scale_denom *= 2 ) + { + if( cinfo.image_width < nPreviewWidth * cinfo.scale_denom ) + break; + if( cinfo.image_height < nPreviewHeight * cinfo.scale_denom ) + break; + } + + if( cinfo.scale_denom > 1 ) + { + cinfo.dct_method = JDCT_FASTEST; + cinfo.do_fancy_upsampling = sal_False; + cinfo.do_block_smoothing = sal_False; + } + } + + jpeg_start_decompress( &cinfo ); + + nWidth = cinfo.output_width; + nHeight = cinfo.output_height; + aCreateBitmapParam.nWidth = nWidth; + aCreateBitmapParam.nHeight = nHeight; + + aCreateBitmapParam.density_unit = cinfo.density_unit; + aCreateBitmapParam.X_density = cinfo.X_density; + aCreateBitmapParam.Y_density = cinfo.Y_density; + aCreateBitmapParam.bGray = cinfo.output_components == 1; + pDIB = CreateBitmap( pJPEGReader, &aCreateBitmapParam ); + nAlignedWidth = aCreateBitmapParam.nAlignedWidth; + range_limit=cinfo.sample_range_limit; + + if ( cinfo.out_color_space == JCS_CMYK ) + { + nScanLineBufferComponents = cinfo.output_width * 4; + pScanLineBuffer = rtl_allocateMemory( nScanLineBufferComponents ); + } + + if( pDIB ) + { + if( aCreateBitmapParam.bTopDown ) + pTmp = pDIB; + else + { + pTmp = pDIB + ( nHeight - 1 ) * nAlignedWidth; + nAlignedWidth = -nAlignedWidth; + } + + for ( *pLines = 0; *pLines < nHeight; (*pLines)++ ) + { + if (pScanLineBuffer!=NULL) { // in other words cinfo.out_color_space == JCS_CMYK + int i; + int j; + jpeg_read_scanlines( &cinfo, (JSAMPARRAY) &pScanLineBuffer, 1 ); + // convert CMYK to RGB + for( i=0, j=0; i < nScanLineBufferComponents; i+=4, j+=3 ) + { + int c_=255-pScanLineBuffer[i+0]; + int m_=255-pScanLineBuffer[i+1]; + int y_=255-pScanLineBuffer[i+2]; + int k_=255-pScanLineBuffer[i+3]; + pTmp[j+0]=range_limit[ 255L - ( c_ + k_ ) ]; + pTmp[j+1]=range_limit[ 255L - ( m_ + k_ ) ]; + pTmp[j+2]=range_limit[ 255L - ( y_ + k_ ) ]; + } + } else { + jpeg_read_scanlines( &cinfo, (JSAMPARRAY) &pTmp, 1 ); + } + /* PENDING ??? */ + if ( cinfo.err->msg_code == 113 ) + break; + + pTmp += nAlignedWidth; + } + } + + jpeg_finish_decompress( &cinfo ); + if (pScanLineBuffer!=NULL) { + rtl_freeMemory( pScanLineBuffer ); + pScanLineBuffer=NULL; + } + +Exit: + + if( bDecompCreated ) + jpeg_destroy_decompress( &cinfo ); +} + +long WriteJPEG( void* pJPEGWriter, void* pOStm, + long nWidth, long nHeight, long bGreys, + long nQualityPercent, void* pCallbackData ) +{ + struct jpeg_compress_struct cinfo; + struct my_error_mgr jerr; + void* pScanline; + long nY; + // declare bCompCreated, bRet volatile because of gcc + // warning: variable 'bCompCreated' might be clobbered by `longjmp' or `vfork' + volatile long bCompCreated = 0; + volatile long bRet = 0; + + if ( setjmp( jerr.setjmp_buffer ) ) + goto Exit; + + cinfo.err = jpeg_std_error( &jerr.pub ); + jerr.pub.error_exit = my_error_exit; + jerr.pub.output_message = my_output_message; + + jpeg_create_compress( &cinfo ); + bCompCreated = 1; + + jpeg_svstream_dest( &cinfo, pOStm ); + + cinfo.image_width = (JDIMENSION) nWidth; + cinfo.image_height = (JDIMENSION) nHeight; + if ( bGreys ) + { + cinfo.input_components = 1; + cinfo.in_color_space = JCS_GRAYSCALE; + } + else + { + cinfo.input_components = 3; + cinfo.in_color_space = JCS_RGB; + } + + jpeg_set_defaults( &cinfo ); + jpeg_set_quality( &cinfo, (int) nQualityPercent, sal_False ); + + if ( ( nWidth > 128 ) || ( nHeight > 128 ) ) + jpeg_simple_progression( &cinfo ); + + jpeg_start_compress( &cinfo, sal_True ); + + for( nY = 0; nY < nHeight; nY++ ) + { + pScanline = GetScanline( pJPEGWriter, nY ); + + if( pScanline ) + jpeg_write_scanlines( &cinfo, (JSAMPARRAY) &pScanline, 1 ); + + if( JPEGCallback( pCallbackData, nY * 100L / nHeight ) ) + goto Exit; + } + + bRet = 1; + + jpeg_finish_compress(&cinfo); + +Exit: + + if ( bCompCreated ) + jpeg_destroy_compress( &cinfo ); + + return bRet; +} |