[Digikam-devel] [Bug 126326] digikam: camera download: auto-rotated images loose EXIF info when 'No EXIF information found.' is written to console

Gilles Caulier caulier.gilles at free.fr
Wed May 10 21:23:22 CEST 2006


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http://bugs.kde.org/show_bug.cgi?id=126326         




------- Additional Comments From caulier.gilles free fr  2006-05-10 21:23 -------
SVN commit 539482 by cgilles:

JpegLossLess plugin : backport fix from digiKam (see file 126326 in B.K.O) about an incompatibility with JPEG implementation and "enable-final" option!

CCMAIL: kde-imaging kde org
CCBUGS: 126326

 M  +6 -2      Makefile.am  
 M  +4 -4      convert2grayscale.cpp  
 M  +4 -4      imageflip.cpp  
 M  +62 -44    imagerotate.cpp  


--- trunk/extragear/libs/kipi-plugins/jpeglossless/Makefile.am #539481:539482
 @ -1,7 +1,11  @
 METASOURCES  = AUTO
-KDE_CXXFLAGS = $(USE_EXCEPTIONS)
 INCLUDES     = $(LIBKIPI_CFLAGS) $(LIBKEXIF_CFLAGS) $(all_includes)
 
+# --enable-final triggers: http://bugs.kde.org/show_bug.cgi?id=126326
+# digikam: camera download: auto-rotated images loose EXIF info ...
+# So make sure nofinal is always used here!
+KDE_OPTIONS = nofinal
+
 # Install this plugin in the KDE modules directory
 kde_module_LTLIBRARIES = kipiplugin_jpeglossless.la
 
 @ -12,7 +16,7  @
 		                     imagerotate.cpp convert2grayscale.cpp imageflip.cpp 
 
 kipiplugin_jpeglossless_la_LIBADD = $(LIB_KPARTS) \
-				    -ljpeg -lMagick++ $(LIBKIPI_LIBS) $(LIBKEXIF_LIBS) 
+				    -ljpeg -lWand $(LIBKIPI_LIBS) $(LIBKEXIF_LIBS) 
 
 kipiplugin_jpeglossless_la_LDFLAGS = -module $(KDE_PLUGIN) $(all_libraries)
 
--- trunk/extragear/libs/kipi-plugins/jpeglossless/convert2grayscale.cpp #539481:539482
 @ -41,9 +41,9  @
 #include <kdebug.h>
 #include <kurl.h>
 
-// ImageMgick includes.
+// ImageMagick includes.
 
-#include <Magick++.h>
+//#include <Magick++.h>
 
 // Local includes.
 
 @ -192,7 +192,7  @
 
 bool image2GrayScaleImageMagick(const QString& src, const QString& dest, QString& err)
 {
-    try 
+/*    try 
     {
         Magick::Image image;
         std::string srcFileName(QFile::encodeName(src));
 @ -209,7 +209,7  @
         err = i18n("Cannot convert to gray scale: %1").arg(error_.what());
         kdError() << "Convert2GrayScale: ImageMagick exception: " << error_.what() << endl;
         return false;
-    }
+    }*/
 }
 
 }  // NameSpace KIPIJPEGLossLessPlugin
--- trunk/extragear/libs/kipi-plugins/jpeglossless/imageflip.cpp #539481:539482
 @ -44,9 +44,9  @
 
 #include <libkexif/kexifdata.h>
 
-// ImageMgick includes.
+// ImageMagick includes.
 
-#include <Magick++.h>
+//#include <Magick++.h>
 
 // Local includes
 
 @ -131,7 +131,7  @
 
 bool flipImageMagick(const QString& src, const QString& dest, FlipAction action, QString& err)
 {
-    try 
+/*    try 
     {
         Magick::Image image;
         std::string srcFileName(QFile::encodeName(src));
 @ -166,7 +166,7  @
         err = i18n("Cannot flip: %1").arg(error_.what());
         kdError() << "ImageFlip: ImageMagick exception: " << error_.what() << endl;
         return false;
-    }
+    }*/
 }
 
 }  // NameSpace KIPIJPEGLossLessPlugin
--- trunk/extragear/libs/kipi-plugins/jpeglossless/imagerotate.cpp #539481:539482
 @ -26,8 +26,6  @
 
 #include <cstdio>
 #include <cstdlib>
-#include <cassert>
-#include <string>
 
 // Qt includes.
 
 @ -47,10 +45,6  @
 
 #include <libkexif/kexifdata.h>
 
-// ImageMgick includes.
-
-#include <Magick++.h>
-
 // Local includes.
 
 #include "imagerotate.h"
 @ -63,6 +57,7  @
 #include <sys/types.h>
 #include <unistd.h>
 #include <jpeglib.h>
+#include <wand/magick-wand.h>
 #include "transupp.h"
 #include "jpegtransform.h"
 }
 @ -145,51 +140,74  @
 
 bool rotateImageMagick(const QString& src, const QString& dest, RotateAction angle, QString& err)
 {
-    try 
+    bool valRet = true;
+    MagickWandGenesis();
+    PixelWand *background    = NewPixelWand();
+    MagickWand *magickWand   = NewMagickWand();  
+    MagickBooleanType status = MagickReadImage(magickWand, QFile::encodeName(src));
+    
+    if (status == MagickFalse)
     {
-        Magick::Image image;
-        std::string srcFileName(QFile::encodeName(src));
-        image.read(srcFileName);
+        err = i18n("Failed to load original image");
+        valRet = false;
+        goto Exit_Method;
+    }
 
-        switch(angle)
+    PixelSetColor(background, "#000000");
+
+    switch(angle)
+    {
+        case (Rot90):
+        {   
+            status = MagickRotateImage(magickWand, background, 90.0);
+            break;
+        }
+        case (Rot180):
         {
-            case (Rot90):
-            {
-                image.rotate(90.0);
-                break;
-            }
-            case (Rot180):
-            {
-                image.rotate(180.0);        
-                break;
-            }
-            case (Rot270):
-            {
-                image.rotate(270.0);
-                break;
-            }
-            case (Rot0):
-            {
-                break;
-            }
-            default:
-            {
-                kdError() << "ImageRotate: Nonstandard rotation angle" << endl;
-                err = i18n("Nonstandard rotation angle");
-                return false;
-            }
+            status = MagickRotateImage(magickWand, background, 180.0);
+            break;
         }
-    
-        std::string destFileName(QFile::encodeName(dest));
-        image.write(destFileName);
-        return true;
+        case (Rot270):
+        {
+            status = MagickRotateImage(magickWand, background, 270.0);
+            break;
+        }
+        case (Rot0):
+        {
+            break;
+        }
+        default:
+        {
+            kdError() << "ImageRotate: Nonstandard rotation angle" << endl;
+            err = i18n("Nonstandard rotation angle");
+            valRet = false;
+            goto Exit_Method;
+        }
     }
-    catch( std::exception &error_ )
+
+    if (status == MagickFalse)
     {
-        err = i18n("Cannot rotating: %1").arg(error_.what());
-        kdError() << "ImageRotate: ImageMagick exception: " << error_.what() << endl;
-        return false;
+        err = i18n("Failed to process image rotation image");
+        valRet = false;
+        goto Exit_Method;
     }
+
+    status = MagickWriteImages(magickWand, QFile::encodeName(dest), MagickTrue);
+    
+    if (status == MagickFalse)
+    {
+        err = i18n("Failed to save target image");
+        valRet = false;
+        goto Exit_Method;
+    }
+
+Exit_Method:
+
+    if (background) DestroyPixelWand(background);
+    MagickClearException(magickWand);
+    if (magickWand) DestroyMagickWand(magickWand);
+    MagickWandTerminus();
+    return valRet;
 }
 
 }  // NameSpace KIPIJPEGLossLessPlugin


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