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authorChris Sherlock <chris.sherlock79@gmail.com>2016-02-13 16:08:01 +1100
committerTomaž Vajngerl <quikee@gmail.com>2016-02-14 20:51:08 +0000
commitf8355221ae62b89a706f2d04b63eda658f3ccfa5 (patch)
tree6a01919926776dc5c36ffb825dc69b46ba66fbac /vcl
parent19fb09dce67d29d480ff39c538209b887f661dc9 (diff)
tdf#85761 vcl: JPEG export does not save PPI values correctly
JPEG values are currently hardcoded to 96PPI when we export JPEGs. The Graphic class doesn't have an easy way to get the PPI, but this can actually be calculated from the pref size and pref map mode (no idea why it is called "Pref"). Interestingly, you need to get a multiplier to work this out, relative to units of 100th mm. The EPS filter code had a function that does exactly this, but it's entirely based on MapMode units so it was really implemented in the wrong class IMO. I have thus moved it out of PSWriter and into MapMode. This also fixes tdf#65695, which was partially fixed, but had the JPEG PPI hardcoded to 96dpi. Also fixes tdf#97481. Change-Id: Iedb674141dd4e22fcbfb7be357dc777f732aa3aa Reviewed-on: https://gerrit.libreoffice.org/22339 Tested-by: Jenkins <ci@libreoffice.org> Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Diffstat (limited to 'vcl')
-rw-r--r--vcl/CppunitTest_vcl_mapmode.mk53
-rw-r--r--vcl/Module_vcl.mk1
-rw-r--r--vcl/qa/cppunit/mapmode.cxx65
-rw-r--r--vcl/source/filter/jpeg/JpegWriter.cxx6
-rw-r--r--vcl/source/filter/jpeg/jpeg.h4
-rw-r--r--vcl/source/filter/jpeg/jpegc.cxx6
-rw-r--r--vcl/source/gdi/graph.cxx26
-rw-r--r--vcl/source/gdi/mapmod.cxx47
8 files changed, 200 insertions, 8 deletions
diff --git a/vcl/CppunitTest_vcl_mapmode.mk b/vcl/CppunitTest_vcl_mapmode.mk
new file mode 100644
index 000000000000..daee48078e31
--- /dev/null
+++ b/vcl/CppunitTest_vcl_mapmode.mk
@@ -0,0 +1,53 @@
+# -*- Mode: makefile-gmake; tab-width: 4; indent-tabs-mode: t -*-
+#
+# This file is part of the LibreOffice project.
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+
+$(eval $(call gb_CppunitTest_CppunitTest,vcl_mapmode))
+
+$(eval $(call gb_CppunitTest_set_include,vcl_mapmode,\
+ $$(INCLUDE) \
+ -I$(SRCDIR)/vcl/inc \
+))
+
+$(eval $(call gb_CppunitTest_add_exception_objects,vcl_mapmode, \
+ vcl/qa/cppunit/mapmode \
+))
+
+$(eval $(call gb_CppunitTest_use_externals,vcl_mapmode,boost_headers))
+
+$(eval $(call gb_CppunitTest_use_libraries,vcl_mapmode, \
+ comphelper \
+ cppu \
+ cppuhelper \
+ sal \
+ svt \
+ test \
+ tl \
+ tk \
+ unotest \
+ vcl \
+ $(gb_UWINAPI) \
+))
+
+$(eval $(call gb_CppunitTest_use_api,vcl_mapmode,\
+ udkapi \
+ offapi \
+))
+
+$(eval $(call gb_CppunitTest_use_ure,vcl_mapmode))
+$(eval $(call gb_CppunitTest_use_vcl,vcl_mapmode))
+
+$(eval $(call gb_CppunitTest_use_components,vcl_mapmode,\
+ configmgr/source/configmgr \
+ i18npool/util/i18npool \
+ ucb/source/core/ucb1 \
+))
+
+$(eval $(call gb_CppunitTest_use_configuration,vcl_mapmode))
+
+# vim: set noet sw=4 ts=4:
diff --git a/vcl/Module_vcl.mk b/vcl/Module_vcl.mk
index 299ffb11f4ac..65fa586e4ee5 100644
--- a/vcl/Module_vcl.mk
+++ b/vcl/Module_vcl.mk
@@ -101,6 +101,7 @@ $(eval $(call gb_Module_add_check_targets,vcl,\
CppunitTest_vcl_fontmetric \
CppunitTest_vcl_complextext \
CppunitTest_vcl_filters_test \
+ CppunitTest_vcl_mapmode \
CppunitTest_vcl_outdev \
CppunitTest_vcl_app_test \
CppunitTest_vcl_wmf_test \
diff --git a/vcl/qa/cppunit/mapmode.cxx b/vcl/qa/cppunit/mapmode.cxx
new file mode 100644
index 000000000000..87c20a3bd666
--- /dev/null
+++ b/vcl/qa/cppunit/mapmode.cxx
@@ -0,0 +1,65 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <test/bootstrapfixture.hxx>
+#include <cppunit/TestAssert.h>
+#include <cppunit/TestFixture.h>
+
+#include <osl/file.hxx>
+#include <osl/process.h>
+
+#include <vcl/mapmod.hxx>
+
+class VclMapModeTest : public test::BootstrapFixture
+{
+public:
+ VclMapModeTest() : BootstrapFixture(true, false) {}
+
+ void testMultiplier();
+
+ CPPUNIT_TEST_SUITE(VclMapModeTest);
+ CPPUNIT_TEST(testMultiplier);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+void VclMapModeTest::testMultiplier()
+{
+ MapMode aMapMode;
+ CPPUNIT_ASSERT_MESSAGE( "Default map mode is MAP_PIXEL, multiplier should be 1", aMapMode.GetUnitMultiplier() == 1 );
+ aMapMode.SetMapUnit( MAP_SYSFONT );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_SYSFONT, multiplier should be 1", aMapMode.GetUnitMultiplier() == 1 );
+ aMapMode.SetMapUnit( MAP_APPFONT );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_APPFONT, multiplier should be 1", aMapMode.GetUnitMultiplier() == 1 );
+ aMapMode.SetMapUnit( MAP_100TH_MM );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_100TH_MM, multiplier should be 1", aMapMode.GetUnitMultiplier() == 1 );
+ aMapMode.SetMapUnit( MAP_10TH_MM );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_10TH_MM, multiplier should be 10", aMapMode.GetUnitMultiplier() == 10 );
+ aMapMode.SetMapUnit( MAP_MM );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_MM, multiplier should be 100", aMapMode.GetUnitMultiplier() == 100 );
+ aMapMode.SetMapUnit( MAP_CM );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_CM, multiplier should be 1000", aMapMode.GetUnitMultiplier() == 1000 );
+ aMapMode.SetMapUnit( MAP_1000TH_INCH );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_1000TH_INCH, multiplier should be 2.54", aMapMode.GetUnitMultiplier() == 2.54 );
+ aMapMode.SetMapUnit( MAP_100TH_INCH );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_100TH_INCH, multiplier should be 2.54", aMapMode.GetUnitMultiplier() == 25.4 );
+ aMapMode.SetMapUnit( MAP_10TH_INCH );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_10TH_INCH, multiplier should be 254", aMapMode.GetUnitMultiplier() == 254 );
+ aMapMode.SetMapUnit( MAP_INCH );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_INCH, multiplier should be 2540", aMapMode.GetUnitMultiplier() == 2540 );
+ aMapMode.SetMapUnit( MAP_TWIP );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_TWIP, multiplier should be 1.76388889", aMapMode.GetUnitMultiplier() == 1.76388889 );
+ aMapMode.SetMapUnit( MAP_POINT );
+ CPPUNIT_ASSERT_MESSAGE( "Map mode is MAP_POINT, multiplier should be 35.27777778", aMapMode.GetUnitMultiplier() == 35.27777778 );
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(VclMapModeTest);
+
+CPPUNIT_PLUGIN_IMPLEMENT();
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/filter/jpeg/JpegWriter.cxx b/vcl/source/filter/jpeg/JpegWriter.cxx
index 94632167e003..35c04797c07f 100644
--- a/vcl/source/filter/jpeg/JpegWriter.cxx
+++ b/vcl/source/filter/jpeg/JpegWriter.cxx
@@ -227,7 +227,11 @@ bool JPEGWriter::Write( const Graphic& rGraphic )
if( !mbNative )
mpBuffer = new sal_uInt8[ AlignedWidth4Bytes( mbGreys ? mpReadAccess->Width() * 8L : mpReadAccess->Width() * 24L ) ];
- bRet = WriteJPEG( this, &mrStream, mpReadAccess->Width(), mpReadAccess->Height(), mbGreys, mnQuality, maChromaSubsampling, mxStatusIndicator );
+ SAL_INFO("vcl", "\nJPEG Export - DPI X: " << rGraphic.GetPPI().getX() << "\nJPEG Export - DPI Y: " << rGraphic.GetPPI().getY());
+
+ bRet = WriteJPEG( this, &mrStream, mpReadAccess->Width(),
+ mpReadAccess->Height(), rGraphic.GetPPI(), mbGreys,
+ mnQuality, maChromaSubsampling, mxStatusIndicator );
delete[] mpBuffer;
mpBuffer = nullptr;
diff --git a/vcl/source/filter/jpeg/jpeg.h b/vcl/source/filter/jpeg/jpeg.h
index 1f8c21f62aac..63c4b2ac3d28 100644
--- a/vcl/source/filter/jpeg/jpeg.h
+++ b/vcl/source/filter/jpeg/jpeg.h
@@ -24,6 +24,7 @@
#include <com/sun/star/uno/Reference.hxx>
#include <sal/types.h>
+#include <basegfx/vector/b2dsize.hxx>
#include <jpeglib.h>
@@ -38,7 +39,8 @@ void jpeg_svstream_src (j_decompress_ptr cinfo, void* infile);
void jpeg_svstream_dest (j_compress_ptr cinfo, void* outfile);
-bool WriteJPEG( JPEGWriter* pJPEGWriter, void* pOutputStream, long nWidth, long nHeight, bool bGreyScale,
+bool WriteJPEG( JPEGWriter* pJPEGWriter, void* pOutputStream,
+ long nWidth, long nHeight, basegfx::B2DSize aPPI, bool bGreyScale,
long nQualityPercent, long aChromaSubsampling,
css::uno::Reference<css::task::XStatusIndicator> const & status);
diff --git a/vcl/source/filter/jpeg/jpegc.cxx b/vcl/source/filter/jpeg/jpegc.cxx
index d42ae785b623..ef3c91c736bf 100644
--- a/vcl/source/filter/jpeg/jpegc.cxx
+++ b/vcl/source/filter/jpeg/jpegc.cxx
@@ -231,7 +231,7 @@ void ReadJPEG( JPEGReader* pJPEGReader, void* pInputStream, long* pLines,
}
bool WriteJPEG( JPEGWriter* pJPEGWriter, void* pOutputStream,
- long nWidth, long nHeight, bool bGreys,
+ long nWidth, long nHeight, basegfx::B2DSize aPPI, bool bGreys,
long nQualityPercent, long aChromaSubsampling,
css::uno::Reference<css::task::XStatusIndicator> const & status )
{
@@ -270,8 +270,8 @@ bool WriteJPEG( JPEGWriter* pJPEGWriter, void* pOutputStream,
jpeg_set_quality( &cinfo, (int) nQualityPercent, FALSE );
cinfo.density_unit = 1;
- cinfo.X_density = 96;
- cinfo.Y_density = 96;
+ cinfo.X_density = aPPI.getX();
+ cinfo.Y_density = aPPI.getY();
if ( ( nWidth > 128 ) || ( nHeight > 128 ) )
jpeg_simple_progression( &cinfo );
diff --git a/vcl/source/gdi/graph.cxx b/vcl/source/gdi/graph.cxx
index 6acf9b19abe3..2c14d8f3bc9a 100644
--- a/vcl/source/gdi/graph.cxx
+++ b/vcl/source/gdi/graph.cxx
@@ -37,8 +37,8 @@ static void ImplDrawDefault( OutputDevice* pOutDev, const OUString* pText,
vcl::Font* pFont, const Bitmap* pBitmap, const BitmapEx* pBitmapEx,
const Point& rDestPt, const Size& rDestSize )
{
- sal_uInt16 nPixel = (sal_uInt16) pOutDev->PixelToLogic( Size( 1, 1 ) ).Width();
- sal_uInt16 nPixelWidth = nPixel;
+ sal_uInt16 nPixel = (sal_uInt16) pOutDev->PixelToLogic( Size( 1, 1 ) ).Width();
+ sal_uInt16 nPixelWidth = nPixel;
Point aPoint( rDestPt.X() + nPixelWidth, rDestPt.Y() + nPixelWidth );
Size aSize( rDestSize.Width() - ( nPixelWidth << 1 ), rDestSize.Height() - ( nPixelWidth << 1 ) );
bool bFilled = ( pBitmap != nullptr || pBitmapEx != nullptr || pFont != nullptr );
@@ -407,6 +407,28 @@ void Graphic::SetPrefMapMode( const MapMode& rPrefMapMode )
mpImpGraphic->ImplSetPrefMapMode( rPrefMapMode );
}
+basegfx::B2DSize Graphic::GetPPI() const
+{
+ MapMode aMapMode = GetPrefMapMode();
+
+ double fWidthInches = ( GetPrefSize().Width() * aMapMode.GetUnitMultiplier() ) / 2540;
+ double fHeightInches = ( GetPrefSize().Height() * aMapMode.GetUnitMultiplier() ) / 2540;
+ double fPpiX = 0;
+ double fPpiY = 0;
+
+ if ( fWidthInches > 0 || fHeightInches > 0 ) // we don't want a divide by 0 situation
+ {
+ fPpiX = GetSizePixel().Width() / fWidthInches;
+ fPpiY = GetSizePixel().Height() / fHeightInches;
+ }
+ else
+ {
+ SAL_WARN("vcl", "PPI X is " << fPpiX << " and PPI Y is " << fPpiY << ": thus we are making this 0 DPI. This is unlikely.");
+ }
+
+ return basegfx::B2DSize( fPpiX, fPpiY );
+}
+
Size Graphic::GetSizePixel( const OutputDevice* pRefDevice ) const
{
Size aRet;
diff --git a/vcl/source/gdi/mapmod.cxx b/vcl/source/gdi/mapmod.cxx
index c95351829bdf..0c4bc512fd62 100644
--- a/vcl/source/gdi/mapmod.cxx
+++ b/vcl/source/gdi/mapmod.cxx
@@ -25,7 +25,6 @@
#include <tools/vcompat.hxx>
#include <tools/debug.hxx>
-
struct MapMode::ImplMapMode
{
sal_uLong mnRefCount;
@@ -208,6 +207,52 @@ void MapMode::SetScaleY( const Fraction& rScaleY )
mpImplMapMode->maScaleY.ReduceInaccurate(32);
}
+double MapMode::GetUnitMultiplier() const
+{
+ double nMul;
+ switch ( GetMapUnit() )
+ {
+ case MAP_PIXEL :
+ case MAP_SYSFONT :
+ case MAP_APPFONT :
+
+ case MAP_100TH_MM :
+ nMul = 1;
+ break;
+ case MAP_10TH_MM :
+ nMul = 10;
+ break;
+ case MAP_MM :
+ nMul = 100;
+ break;
+ case MAP_CM :
+ nMul = 1000;
+ break;
+ case MAP_1000TH_INCH :
+ nMul = 2.54;
+ break;
+ case MAP_100TH_INCH :
+ nMul = 25.4;
+ break;
+ case MAP_10TH_INCH :
+ nMul = 254;
+ break;
+ case MAP_INCH :
+ nMul = 2540;
+ break;
+ case MAP_TWIP :
+ nMul = 1.76388889;
+ break;
+ case MAP_POINT :
+ nMul = 35.27777778;
+ break;
+ default:
+ nMul = 1.0;
+ break;
+ }
+ return nMul;
+}
+
MapMode& MapMode::operator=( const MapMode& rMapMode )
{
DBG_ASSERT( rMapMode.mpImplMapMode->mnRefCount < 0xFFFFFFFE, "MapMode: RefCount overflow" );