ofz#889 readjust jpeg import

Change-Id: I4e25db429b8dee9265ab2ad468c21cc34a50df6c
Reviewed-on: https://gerrit.libreoffice.org/35325
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

5 files changed, 4 insertions, 3 deletions

diff --git a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/CVE-2004-0200-1.jpg b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/CVE-2004-0200-1.jpg
index 3d9481aca908..3d9481aca908 100644
--- a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/CVE-2004-0200-1.jpg
+++ b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/CVE-2004-0200-1.jpg
diff --git a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/CVE-2004-0200-4.jpg b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/CVE-2004-0200-4.jpg
index 9d26db0050bb..9d26db0050bb 100644
--- a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/CVE-2004-0200-4.jpg
+++ b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/CVE-2004-0200-4.jpg
diff --git a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/EDB-24743-2.jpg b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/EDB-24743-2.jpg
index 01e7fe16f413..01e7fe16f413 100644
--- a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/EDB-24743-2.jpg
+++ b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/EDB-24743-2.jpg
diff --git a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/EDB-24743-3.jpg b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/EDB-24743-3.jpg
index 4753ed8db1c3..4753ed8db1c3 100644
--- a/vcl/qa/cppunit/graphicfilter/data/jpg/fail/EDB-24743-3.jpg
+++ b/vcl/qa/cppunit/graphicfilter/data/jpg/pass/EDB-24743-3.jpg
diff --git a/vcl/source/filter/jpeg/jpegc.cxx b/vcl/source/filter/jpeg/jpegc.cxx
index 8d9b1626022d..e73065e668f0 100644
--- a/vcl/source/filter/jpeg/jpegc.cxx
+++ b/vcl/source/filter/jpeg/jpegc.cxx
@@ -132,7 +132,7 @@ void ReadJPEG( JPEGReader* pJPEGReader, void* pInputStream, long* pLines,
         }
     }
 
-    jpeg_start_decompress( &cinfo );
+    jpeg_calc_output_dimensions(&cinfo);
 
     long nWidth = cinfo.output_width;
     long nHeight = cinfo.output_height;
@@ -161,7 +161,6 @@ void ReadJPEG( JPEGReader* pJPEGReader, void* pInputStream, long* pLines,
             J_COLOR_SPACE best_out_color_space = JCS_RGB;
             ScanlineFormat eScanlineFormat = ScanlineFormat::N24BitTcRgb;
             ScanlineFormat eFinalFormat = pAccess->GetScanlineFormat();
-
             if (eFinalFormat == ScanlineFormat::N32BitTcBgra)
             {
                 best_out_color_space = JCS_EXT_BGRA;
@@ -190,10 +189,12 @@ void ReadJPEG( JPEGReader* pJPEGReader, void* pInputStream, long* pLines,
                 cinfo.out_color_space != JCS_GRAYSCALE &&
                 cinfo.out_color_space != best_out_color_space)
             {
-                SAL_WARN("vcl.filter", "jpg with unknown out color space, forcing to :" << best_out_color_space);
+                SAL_WARN("vcl.filter", "jpg with unknown out color space, forcing to :" << best_out_color_space << " gray ");
                 cinfo.out_color_space = best_out_color_space;
             }
 
+            jpeg_start_decompress(&cinfo);
+
             JSAMPLE* aRangeLimit = cinfo.sample_range_limit;
 
             std::vector<sal_uInt8> pScanLineBuffer(nWidth * (bGray ? 1 : nPixelSize));