[Libreoffice-commits] core.git: vcl/source
Stephan Bergmann
sbergman at redhat.com
Wed Oct 18 22:04:23 UTC 2017
vcl/source/filter/jpeg/jpegc.cxx | 607 ++++++++++++++++++++-------------------
1 file changed, 321 insertions(+), 286 deletions(-)
New commits:
commit cfbb8b5090537e79ba70e250ddee86d53facbe15
Author: Stephan Bergmann <sbergman at redhat.com>
Date: Wed Oct 18 13:02:28 2017 +0200
Avoid throwing C++ exception across libjpeg C frames
It causes trouble at least for (non-debug) 32-bit ARM Flatpak builds, where
CppunitTest_vcl_filters_test aborts with an uncaught css::uno::RuntimeException.
This is a partial revert of 6889fa826eef6bd1074d77507818e71dfe8ba152 "rework
jpeg error handling to throw rather than setjmp to avoid leaks", switching back
to setjmp/longjmp but trying to keep the leaks fixed by introducing any relevant
local variables before the setjmps.
Change-Id: Ia5984528ea98be1c89a21aee800b247120f88a89
Reviewed-on: https://gerrit.libreoffice.org/43494
Tested-by: Jenkins <ci at libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman at redhat.com>
diff --git a/vcl/source/filter/jpeg/jpegc.cxx b/vcl/source/filter/jpeg/jpegc.cxx
index 4305f065ed54..86dd30b71c7e 100644
--- a/vcl/source/filter/jpeg/jpegc.cxx
+++ b/vcl/source/filter/jpeg/jpegc.cxx
@@ -21,6 +21,7 @@
#include <stdio.h>
#include <stdlib.h>
+#include <setjmp.h>
#include <jpeglib.h>
#include <jerror.h>
@@ -37,12 +38,28 @@ extern "C" {
#include <vcl/bitmapaccess.hxx>
#include <vcl/graphicfilter.hxx>
+#ifdef _MSC_VER
+#pragma warning(push, 1) /* disable to __declspec(align()) aligned warning */
+#pragma warning (disable: 4324)
+#endif
+
+struct ErrorManagerStruct
+{
+ jpeg_error_mgr pub;
+ jmp_buf setjmp_buffer;
+};
+
+#ifdef _MSC_VER
+#pragma warning(pop)
+#endif
+
extern "C" void errorExit (j_common_ptr cinfo)
{
char buffer[JMSG_LENGTH_MAX];
(*cinfo->err->format_message) (cinfo, buffer);
SAL_WARN("vcl.filter", "fatal failure reading JPEG: " << buffer);
- throw css::uno::RuntimeException(OUString(buffer, strlen(buffer), RTL_TEXTENCODING_ASCII_US));
+ ErrorManagerStruct * error = reinterpret_cast<ErrorManagerStruct *>(cinfo->err);
+ longjmp(error->setjmp_buffer, 1);
}
extern "C" void outputMessage (j_common_ptr cinfo)
@@ -55,226 +72,239 @@ extern "C" void outputMessage (j_common_ptr cinfo)
class JpegDecompressOwner
{
public:
- JpegDecompressOwner(jpeg_decompress_struct &cinfo) : m_cinfo(cinfo)
+ void set(jpeg_decompress_struct *cinfo)
{
+ m_cinfo = cinfo;
}
~JpegDecompressOwner()
{
- jpeg_destroy_decompress(&m_cinfo);
+ if (m_cinfo != nullptr)
+ {
+ jpeg_destroy_decompress(m_cinfo);
+ }
}
private:
- jpeg_decompress_struct &m_cinfo;
+ jpeg_decompress_struct *m_cinfo = nullptr;
};
class JpegCompressOwner
{
public:
- JpegCompressOwner(jpeg_compress_struct &cinfo) : m_cinfo(cinfo)
+ void set(jpeg_compress_struct *cinfo)
{
+ m_cinfo = cinfo;
}
~JpegCompressOwner()
{
- jpeg_destroy_compress(&m_cinfo);
+ if (m_cinfo != nullptr)
+ {
+ jpeg_destroy_compress(m_cinfo);
+ }
}
private:
- jpeg_compress_struct &m_cinfo;
+ jpeg_compress_struct *m_cinfo = nullptr;
};
void ReadJPEG( JPEGReader* pJPEGReader, void* pInputStream, long* pLines,
Size const & previewSize, GraphicFilterImportFlags nImportFlags,
Bitmap::ScopedWriteAccess* ppAccess )
{
- try
+ jpeg_decompress_struct cinfo;
+ ErrorManagerStruct jerr;
+
+ JpegDecompressOwner aOwner;
+ std::unique_ptr<Bitmap::ScopedWriteAccess> pScopedAccess;
+ std::vector<sal_uInt8> pScanLineBuffer;
+ std::vector<sal_uInt8> pCYMKBuffer;
+
+ if ( setjmp( jerr.setjmp_buffer ) )
+ {
+ return;
+ }
+
+ cinfo.err = jpeg_std_error( &jerr.pub );
+ jerr.pub.error_exit = errorExit;
+ jerr.pub.output_message = outputMessage;
+
+ jpeg_create_decompress( &cinfo );
+ aOwner.set(&cinfo);
+ jpeg_svstream_src( &cinfo, pInputStream );
+ SourceManagerStruct *source = reinterpret_cast<SourceManagerStruct*>(cinfo.src);
+ jpeg_read_header( &cinfo, TRUE );
+
+ cinfo.scale_num = 1;
+ cinfo.scale_denom = 1;
+ cinfo.output_gamma = 1.0;
+ cinfo.raw_data_out = FALSE;
+ cinfo.quantize_colors = FALSE;
+
+ /* change scale for preview import */
+ long nPreviewWidth = previewSize.Width();
+ long nPreviewHeight = previewSize.Height();
+ if( nPreviewWidth || nPreviewHeight )
{
- jpeg_decompress_struct cinfo;
- jpeg_error_mgr jerr;
-
- cinfo.err = jpeg_std_error( &jerr );
- jerr.error_exit = errorExit;
- jerr.output_message = outputMessage;
-
- jpeg_create_decompress( &cinfo );
- JpegDecompressOwner aOwner(cinfo);
- jpeg_svstream_src( &cinfo, pInputStream );
- SourceManagerStruct *source = reinterpret_cast<SourceManagerStruct*>(cinfo.src);
- jpeg_read_header( &cinfo, TRUE );
-
- cinfo.scale_num = 1;
- cinfo.scale_denom = 1;
- cinfo.output_gamma = 1.0;
- cinfo.raw_data_out = FALSE;
- cinfo.quantize_colors = FALSE;
-
- /* change scale for preview import */
- long nPreviewWidth = previewSize.Width();
- long nPreviewHeight = previewSize.Height();
- if( nPreviewWidth || nPreviewHeight )
+ if( nPreviewWidth == 0 )
{
- if( nPreviewWidth == 0 )
+ nPreviewWidth = ( cinfo.image_width * nPreviewHeight ) / cinfo.image_height;
+ if( nPreviewWidth <= 0 )
{
- nPreviewWidth = ( cinfo.image_width * nPreviewHeight ) / cinfo.image_height;
- if( nPreviewWidth <= 0 )
- {
- nPreviewWidth = 1;
- }
+ nPreviewWidth = 1;
}
- else if( nPreviewHeight == 0 )
+ }
+ else if( nPreviewHeight == 0 )
+ {
+ nPreviewHeight = ( cinfo.image_height * nPreviewWidth ) / cinfo.image_width;
+ if( nPreviewHeight <= 0 )
{
- nPreviewHeight = ( cinfo.image_height * nPreviewWidth ) / cinfo.image_width;
- if( nPreviewHeight <= 0 )
- {
- nPreviewHeight = 1;
- }
+ 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;
- }
+ 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 = FALSE;
- cinfo.do_block_smoothing = FALSE;
- }
+ if( cinfo.scale_denom > 1 )
+ {
+ cinfo.dct_method = JDCT_FASTEST;
+ cinfo.do_fancy_upsampling = FALSE;
+ cinfo.do_block_smoothing = FALSE;
}
+ }
- jpeg_calc_output_dimensions(&cinfo);
+ jpeg_calc_output_dimensions(&cinfo);
- long nWidth = cinfo.output_width;
- long nHeight = cinfo.output_height;
+ long nWidth = cinfo.output_width;
+ long nHeight = cinfo.output_height;
- bool bGray = (cinfo.output_components == 1);
+ bool bGray = (cinfo.output_components == 1);
- JPEGCreateBitmapParam aCreateBitmapParam;
+ JPEGCreateBitmapParam aCreateBitmapParam;
- aCreateBitmapParam.nWidth = nWidth;
- aCreateBitmapParam.nHeight = nHeight;
+ 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 = bGray;
+ aCreateBitmapParam.density_unit = cinfo.density_unit;
+ aCreateBitmapParam.X_density = cinfo.X_density;
+ aCreateBitmapParam.Y_density = cinfo.Y_density;
+ aCreateBitmapParam.bGray = bGray;
- const auto bOnlyCreateBitmap = static_cast<bool>(nImportFlags & GraphicFilterImportFlags::OnlyCreateBitmap);
- const auto bUseExistingBitmap = static_cast<bool>(nImportFlags & GraphicFilterImportFlags::UseExistingBitmap);
- bool bBitmapCreated = bUseExistingBitmap;
- if (!bBitmapCreated)
- bBitmapCreated = pJPEGReader->CreateBitmap(aCreateBitmapParam);
+ const auto bOnlyCreateBitmap = static_cast<bool>(nImportFlags & GraphicFilterImportFlags::OnlyCreateBitmap);
+ const auto bUseExistingBitmap = static_cast<bool>(nImportFlags & GraphicFilterImportFlags::UseExistingBitmap);
+ bool bBitmapCreated = bUseExistingBitmap;
+ if (!bBitmapCreated)
+ bBitmapCreated = pJPEGReader->CreateBitmap(aCreateBitmapParam);
- if (bBitmapCreated && !bOnlyCreateBitmap)
- {
- std::unique_ptr<Bitmap::ScopedWriteAccess> pScopedAccess;
+ if (bBitmapCreated && !bOnlyCreateBitmap)
+ {
+ if (nImportFlags & GraphicFilterImportFlags::UseExistingBitmap)
+ // ppAccess must be set if this flag is used.
+ assert(ppAccess);
+ else
+ pScopedAccess.reset(new Bitmap::ScopedWriteAccess(pJPEGReader->GetBitmap()));
- if (nImportFlags & GraphicFilterImportFlags::UseExistingBitmap)
- // ppAccess must be set if this flag is used.
- assert(ppAccess);
- else
- pScopedAccess.reset(new Bitmap::ScopedWriteAccess(pJPEGReader->GetBitmap()));
+ Bitmap::ScopedWriteAccess& pAccess = bUseExistingBitmap ? *ppAccess : *pScopedAccess.get();
- Bitmap::ScopedWriteAccess& pAccess = bUseExistingBitmap ? *ppAccess : *pScopedAccess.get();
+ if (pAccess)
+ {
+ int nPixelSize = 3;
+ J_COLOR_SPACE best_out_color_space = JCS_RGB;
+ ScanlineFormat eScanlineFormat = ScanlineFormat::N24BitTcRgb;
+ ScanlineFormat eFinalFormat = pAccess->GetScanlineFormat();
- if (pAccess)
+ if (bGray)
+ {
+ best_out_color_space = JCS_GRAYSCALE;
+ eScanlineFormat = ScanlineFormat::N8BitPal;
+ nPixelSize = 1;
+ }
+ else if (eFinalFormat == ScanlineFormat::N32BitTcBgra)
+ {
+ best_out_color_space = JCS_EXT_BGRA;
+ eScanlineFormat = eFinalFormat;
+ nPixelSize = 4;
+ }
+ else if (eFinalFormat == ScanlineFormat::N32BitTcRgba)
+ {
+ best_out_color_space = JCS_EXT_RGBA;
+ eScanlineFormat = eFinalFormat;
+ nPixelSize = 4;
+ }
+ else if (eFinalFormat == ScanlineFormat::N32BitTcArgb)
{
- int nPixelSize = 3;
- J_COLOR_SPACE best_out_color_space = JCS_RGB;
- ScanlineFormat eScanlineFormat = ScanlineFormat::N24BitTcRgb;
- ScanlineFormat eFinalFormat = pAccess->GetScanlineFormat();
+ best_out_color_space = JCS_EXT_ARGB;
+ eScanlineFormat = eFinalFormat;
+ nPixelSize = 4;
+ }
- if (bGray)
- {
- best_out_color_space = JCS_GRAYSCALE;
- eScanlineFormat = ScanlineFormat::N8BitPal;
- nPixelSize = 1;
- }
- else if (eFinalFormat == ScanlineFormat::N32BitTcBgra)
- {
- best_out_color_space = JCS_EXT_BGRA;
- eScanlineFormat = eFinalFormat;
- nPixelSize = 4;
- }
- else if (eFinalFormat == ScanlineFormat::N32BitTcRgba)
- {
- best_out_color_space = JCS_EXT_RGBA;
- eScanlineFormat = eFinalFormat;
- nPixelSize = 4;
- }
- else if (eFinalFormat == ScanlineFormat::N32BitTcArgb)
- {
- best_out_color_space = JCS_EXT_ARGB;
- eScanlineFormat = eFinalFormat;
- nPixelSize = 4;
- }
+ if (cinfo.jpeg_color_space == JCS_YCCK)
+ cinfo.out_color_space = JCS_CMYK;
- if (cinfo.jpeg_color_space == JCS_YCCK)
- cinfo.out_color_space = JCS_CMYK;
+ if (cinfo.out_color_space != JCS_CMYK)
+ cinfo.out_color_space = best_out_color_space;
- if (cinfo.out_color_space != JCS_CMYK)
- cinfo.out_color_space = best_out_color_space;
+ jpeg_start_decompress(&cinfo);
- jpeg_start_decompress(&cinfo);
+ JSAMPLE* aRangeLimit = cinfo.sample_range_limit;
- JSAMPLE* aRangeLimit = cinfo.sample_range_limit;
+ pScanLineBuffer.resize(nWidth * nPixelSize);
- std::vector<sal_uInt8> pScanLineBuffer(nWidth * nPixelSize);
- std::vector<sal_uInt8> pCYMKBuffer;
+ if (cinfo.out_color_space == JCS_CMYK)
+ {
+ pCYMKBuffer.resize(nWidth * 4);
+ }
- if (cinfo.out_color_space == JCS_CMYK)
- {
- pCYMKBuffer.resize(nWidth * 4);
- }
+ for (*pLines = 0; *pLines < nHeight && !source->no_data_available; (*pLines)++)
+ {
+ size_t yIndex = *pLines;
+
+ sal_uInt8* p = (cinfo.out_color_space == JCS_CMYK) ? pCYMKBuffer.data() : pScanLineBuffer.data();
+ jpeg_read_scanlines(&cinfo, reinterpret_cast<JSAMPARRAY>(&p), 1);
- for (*pLines = 0; *pLines < nHeight && !source->no_data_available; (*pLines)++)
+ if (cinfo.out_color_space == JCS_CMYK)
{
- size_t yIndex = *pLines;
+ // convert CMYK to RGB
+ for (long cmyk = 0, x = 0; cmyk < nWidth * 4; cmyk += 4, ++x)
+ {
+ int color_C = 255 - pCYMKBuffer[cmyk + 0];
+ int color_M = 255 - pCYMKBuffer[cmyk + 1];
+ int color_Y = 255 - pCYMKBuffer[cmyk + 2];
+ int color_K = 255 - pCYMKBuffer[cmyk + 3];
- sal_uInt8* p = (cinfo.out_color_space == JCS_CMYK) ? pCYMKBuffer.data() : pScanLineBuffer.data();
- jpeg_read_scanlines(&cinfo, reinterpret_cast<JSAMPARRAY>(&p), 1);
+ sal_uInt8 cRed = aRangeLimit[255L - (color_C + color_K)];
+ sal_uInt8 cGreen = aRangeLimit[255L - (color_M + color_K)];
+ sal_uInt8 cBlue = aRangeLimit[255L - (color_Y + color_K)];
- if (cinfo.out_color_space == JCS_CMYK)
- {
- // convert CMYK to RGB
- for (long cmyk = 0, x = 0; cmyk < nWidth * 4; cmyk += 4, ++x)
- {
- int color_C = 255 - pCYMKBuffer[cmyk + 0];
- int color_M = 255 - pCYMKBuffer[cmyk + 1];
- int color_Y = 255 - pCYMKBuffer[cmyk + 2];
- int color_K = 255 - pCYMKBuffer[cmyk + 3];
-
- sal_uInt8 cRed = aRangeLimit[255L - (color_C + color_K)];
- sal_uInt8 cGreen = aRangeLimit[255L - (color_M + color_K)];
- sal_uInt8 cBlue = aRangeLimit[255L - (color_Y + color_K)];
-
- pAccess->SetPixel(yIndex, x, BitmapColor(cRed, cGreen, cBlue));
- }
- }
- else
- {
- pAccess->CopyScanline(yIndex, pScanLineBuffer.data(), eScanlineFormat, pScanLineBuffer.size());
+ pAccess->SetPixel(yIndex, x, BitmapColor(cRed, cGreen, cBlue));
}
-
- /* PENDING ??? */
- if (cinfo.err->msg_code == 113)
- break;
}
+ else
+ {
+ pAccess->CopyScanline(yIndex, pScanLineBuffer.data(), eScanlineFormat, pScanLineBuffer.size());
+ }
+
+ /* PENDING ??? */
+ if (cinfo.err->msg_code == 113)
+ break;
}
- }
- if (bBitmapCreated && !bOnlyCreateBitmap)
- {
- jpeg_finish_decompress( &cinfo );
- }
- else
- {
- jpeg_abort_decompress( &cinfo );
+ pScanLineBuffer.clear();
+ pCYMKBuffer.clear();
}
+ pScopedAccess.reset();
}
- catch (const css::uno::RuntimeException&)
+
+ if (bBitmapCreated && !bOnlyCreateBitmap)
{
+ jpeg_finish_decompress( &cinfo );
+ }
+ else
+ {
+ jpeg_abort_decompress( &cinfo );
}
}
@@ -283,165 +313,170 @@ bool WriteJPEG( JPEGWriter* pJPEGWriter, void* pOutputStream,
long nQualityPercent, long aChromaSubsampling,
css::uno::Reference<css::task::XStatusIndicator> const & status )
{
- try
- {
- jpeg_compress_struct cinfo;
- jpeg_error_mgr jerr;
- void* pScanline;
- long nY;
-
- cinfo.err = jpeg_std_error( &jerr );
- jerr.error_exit = errorExit;
- jerr.output_message = outputMessage;
-
- jpeg_create_compress( &cinfo );
- JpegCompressOwner aOwner(cinfo);
- jpeg_svstream_dest( &cinfo, pOutputStream );
-
- 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_compress_struct cinfo;
+ ErrorManagerStruct jerr;
+ void* pScanline;
+ long nY;
- jpeg_set_defaults( &cinfo );
- jpeg_set_quality( &cinfo, (int) nQualityPercent, FALSE );
+ JpegCompressOwner aOwner;
- cinfo.density_unit = 1;
- cinfo.X_density = rPPI.getX();
- cinfo.Y_density = rPPI.getY();
+ if ( setjmp( jerr.setjmp_buffer ) )
+ {
+ return false;
+ }
- if ( ( nWidth > 128 ) || ( nHeight > 128 ) )
- jpeg_simple_progression( &cinfo );
+ cinfo.err = jpeg_std_error( &jerr.pub );
+ jerr.pub.error_exit = errorExit;
+ jerr.pub.output_message = outputMessage;
- if (aChromaSubsampling == 1) // YUV 4:4:4
- {
- cinfo.comp_info[0].h_samp_factor = 1;
- cinfo.comp_info[0].v_samp_factor = 1;
- }
- else if (aChromaSubsampling == 2) // YUV 4:2:2
- {
- cinfo.comp_info[0].h_samp_factor = 2;
- cinfo.comp_info[0].v_samp_factor = 1;
- }
- else if (aChromaSubsampling == 3) // YUV 4:2:0
- {
- cinfo.comp_info[0].h_samp_factor = 2;
- cinfo.comp_info[0].v_samp_factor = 2;
- }
+ jpeg_create_compress( &cinfo );
+ aOwner.set(&cinfo);
+ jpeg_svstream_dest( &cinfo, pOutputStream );
- jpeg_start_compress( &cinfo, TRUE );
+ 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;
+ }
- for( nY = 0; nY < nHeight; nY++ )
- {
- pScanline = pJPEGWriter->GetScanline( nY );
+ jpeg_set_defaults( &cinfo );
+ jpeg_set_quality( &cinfo, (int) nQualityPercent, FALSE );
- if( pScanline )
- {
- jpeg_write_scanlines( &cinfo, reinterpret_cast<JSAMPARRAY>(&pScanline), 1 );
- }
+ cinfo.density_unit = 1;
+ cinfo.X_density = rPPI.getX();
+ cinfo.Y_density = rPPI.getY();
- if( status.is() )
- {
- status->setValue( nY * 100L / nHeight );
- }
- }
+ if ( ( nWidth > 128 ) || ( nHeight > 128 ) )
+ jpeg_simple_progression( &cinfo );
- jpeg_finish_compress(&cinfo);
+ if (aChromaSubsampling == 1) // YUV 4:4:4
+ {
+ cinfo.comp_info[0].h_samp_factor = 1;
+ cinfo.comp_info[0].v_samp_factor = 1;
}
- catch (const css::uno::RuntimeException&)
+ else if (aChromaSubsampling == 2) // YUV 4:2:2
{
- return false;
+ cinfo.comp_info[0].h_samp_factor = 2;
+ cinfo.comp_info[0].v_samp_factor = 1;
}
- return true;
-}
-
-void Transform(void* pInputStream, void* pOutputStream, long nAngle)
-{
- try
+ else if (aChromaSubsampling == 3) // YUV 4:2:0
{
- jpeg_transform_info aTransformOption;
- JCOPY_OPTION aCopyOption = JCOPYOPT_ALL;
+ cinfo.comp_info[0].h_samp_factor = 2;
+ cinfo.comp_info[0].v_samp_factor = 2;
+ }
- jpeg_decompress_struct aSourceInfo;
- jpeg_compress_struct aDestinationInfo;
- jpeg_error_mgr aSourceError;
- jpeg_error_mgr aDestinationError;
+ jpeg_start_compress( &cinfo, TRUE );
- jvirt_barray_ptr* aSourceCoefArrays = nullptr;
- jvirt_barray_ptr* aDestinationCoefArrays = nullptr;
+ for( nY = 0; nY < nHeight; nY++ )
+ {
+ pScanline = pJPEGWriter->GetScanline( nY );
- aTransformOption.force_grayscale = FALSE;
- aTransformOption.trim = FALSE;
- aTransformOption.perfect = FALSE;
- aTransformOption.crop = FALSE;
+ if( pScanline )
+ {
+ jpeg_write_scanlines( &cinfo, reinterpret_cast<JSAMPARRAY>(&pScanline), 1 );
+ }
- // Angle to transform option
- // 90 Clockwise = 270 Counterclockwise
- switch (nAngle)
+ if( status.is() )
{
- case 2700:
- aTransformOption.transform = JXFORM_ROT_90;
- break;
- case 1800:
- aTransformOption.transform = JXFORM_ROT_180;
- break;
- case 900:
- aTransformOption.transform = JXFORM_ROT_270;
- break;
- default:
- aTransformOption.transform = JXFORM_NONE;
+ status->setValue( nY * 100L / nHeight );
}
+ }
- // Decompression
- aSourceInfo.err = jpeg_std_error(&aSourceError);
- aSourceInfo.err->error_exit = errorExit;
- aSourceInfo.err->output_message = outputMessage;
+ jpeg_finish_compress(&cinfo);
- // Compression
- aDestinationInfo.err = jpeg_std_error(&aDestinationError);
- aDestinationInfo.err->error_exit = errorExit;
- aDestinationInfo.err->output_message = outputMessage;
+ return true;
+}
+
+void Transform(void* pInputStream, void* pOutputStream, long nAngle)
+{
+ jpeg_transform_info aTransformOption;
+ JCOPY_OPTION aCopyOption = JCOPYOPT_ALL;
- aDestinationInfo.optimize_coding = TRUE;
+ jpeg_decompress_struct aSourceInfo;
+ jpeg_compress_struct aDestinationInfo;
+ ErrorManagerStruct aSourceError;
+ ErrorManagerStruct aDestinationError;
- jpeg_create_decompress(&aSourceInfo);
- JpegDecompressOwner aDecompressOwner(aSourceInfo);
- jpeg_create_compress(&aDestinationInfo);
- JpegCompressOwner aCompressOwner(aDestinationInfo);
+ jvirt_barray_ptr* aSourceCoefArrays = nullptr;
+ jvirt_barray_ptr* aDestinationCoefArrays = nullptr;
- jpeg_svstream_src (&aSourceInfo, pInputStream);
+ aTransformOption.force_grayscale = FALSE;
+ aTransformOption.trim = FALSE;
+ aTransformOption.perfect = FALSE;
+ aTransformOption.crop = FALSE;
- jcopy_markers_setup(&aSourceInfo, aCopyOption);
- jpeg_read_header(&aSourceInfo, TRUE);
- jtransform_request_workspace(&aSourceInfo, &aTransformOption);
+ // Angle to transform option
+ // 90 Clockwise = 270 Counterclockwise
+ switch (nAngle)
+ {
+ case 2700:
+ aTransformOption.transform = JXFORM_ROT_90;
+ break;
+ case 1800:
+ aTransformOption.transform = JXFORM_ROT_180;
+ break;
+ case 900:
+ aTransformOption.transform = JXFORM_ROT_270;
+ break;
+ default:
+ aTransformOption.transform = JXFORM_NONE;
+ }
- aSourceCoefArrays = jpeg_read_coefficients(&aSourceInfo);
- jpeg_copy_critical_parameters(&aSourceInfo, &aDestinationInfo);
+ // Decompression
+ aSourceInfo.err = jpeg_std_error(&aSourceError.pub);
+ aSourceInfo.err->error_exit = errorExit;
+ aSourceInfo.err->output_message = outputMessage;
- aDestinationCoefArrays = jtransform_adjust_parameters(&aSourceInfo, &aDestinationInfo, aSourceCoefArrays, &aTransformOption);
- jpeg_svstream_dest (&aDestinationInfo, pOutputStream);
+ // Compression
+ aDestinationInfo.err = jpeg_std_error(&aDestinationError.pub);
+ aDestinationInfo.err->error_exit = errorExit;
+ aDestinationInfo.err->output_message = outputMessage;
- // Compute optimal Huffman coding tables instead of precomputed tables
- aDestinationInfo.optimize_coding = TRUE;
- jpeg_write_coefficients(&aDestinationInfo, aDestinationCoefArrays);
- jcopy_markers_execute(&aSourceInfo, &aDestinationInfo, aCopyOption);
- jtransform_execute_transformation(&aSourceInfo, &aDestinationInfo, aSourceCoefArrays, &aTransformOption);
+ aDestinationInfo.optimize_coding = TRUE;
- jpeg_finish_compress(&aDestinationInfo);
+ JpegDecompressOwner aDecompressOwner;
+ JpegCompressOwner aCompressOwner;
- jpeg_finish_decompress(&aSourceInfo);
- }
- catch (const css::uno::RuntimeException&)
+ if (setjmp(aSourceError.setjmp_buffer) || setjmp(aDestinationError.setjmp_buffer))
{
+ jpeg_destroy_decompress(&aSourceInfo);
+ jpeg_destroy_compress(&aDestinationInfo);
+ return;
}
+
+ jpeg_create_decompress(&aSourceInfo);
+ aDecompressOwner.set(&aSourceInfo);
+ jpeg_create_compress(&aDestinationInfo);
+ aCompressOwner.set(&aDestinationInfo);
+
+ jpeg_svstream_src (&aSourceInfo, pInputStream);
+
+ jcopy_markers_setup(&aSourceInfo, aCopyOption);
+ jpeg_read_header(&aSourceInfo, TRUE);
+ jtransform_request_workspace(&aSourceInfo, &aTransformOption);
+
+ aSourceCoefArrays = jpeg_read_coefficients(&aSourceInfo);
+ jpeg_copy_critical_parameters(&aSourceInfo, &aDestinationInfo);
+
+ aDestinationCoefArrays = jtransform_adjust_parameters(&aSourceInfo, &aDestinationInfo, aSourceCoefArrays, &aTransformOption);
+ jpeg_svstream_dest (&aDestinationInfo, pOutputStream);
+
+ // Compute optimal Huffman coding tables instead of precomputed tables
+ aDestinationInfo.optimize_coding = TRUE;
+ jpeg_write_coefficients(&aDestinationInfo, aDestinationCoefArrays);
+ jcopy_markers_execute(&aSourceInfo, &aDestinationInfo, aCopyOption);
+ jtransform_execute_transformation(&aSourceInfo, &aDestinationInfo, aSourceCoefArrays, &aTransformOption);
+
+ jpeg_finish_compress(&aDestinationInfo);
+
+ jpeg_finish_decompress(&aSourceInfo);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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