make debug code work properly also on non-win32

Change-Id: I5ccf6b079ef8b6a341d06627e4b0abc9d90e0f8b
Reviewed-on: https://gerrit.libreoffice.org/71566
Tested-by: Jenkins
Reviewed-by: Luboš Luňák <l.lunak@collabora.com>

drawinglayer/source/tools/converters.cxx

@@ -100,7 +100,13 @@ namespace drawinglayer
 #ifdef DBG_UTIL
                 if(bDoSaveForVisualControl)
                 {
-                    SvFileStream aNew("c:\\test_content.png", StreamMode::WRITE|StreamMode::TRUNC);
+                    SvFileStream aNew(
+#ifdef _WIN32
+                    "c:\\test_content.png"
+#else
+                    "~/test_content.png"
+#endif
+                    , StreamMode::WRITE|StreamMode::TRUNC);
                     BitmapEx aContentEx(aContent);
                     vcl::PNGWriter aPNGWriter(aContentEx);
                     aPNGWriter.Write(aNew);
@@ -131,7 +137,13 @@ namespace drawinglayer
 #ifdef DBG_UTIL
                 if(bDoSaveForVisualControl)
                 {
-                    SvFileStream aNew("c:\\test_alpha.png", StreamMode::WRITE|StreamMode::TRUNC);
+                    SvFileStream aNew(
+#ifdef _WIN32
+                    "c:\\test_alpha.png"
+#else
+                    "~/test_alpha.png"
+#endif
+                    , StreamMode::WRITE|StreamMode::TRUNC);
                     BitmapEx aAlphaEx(aAlpha);
                     vcl::PNGWriter aPNGWriter(aAlphaEx);
                     aPNGWriter.Write(aNew);
@@ -143,7 +155,13 @@ namespace drawinglayer
 #ifdef DBG_UTIL
                 if(bDoSaveForVisualControl)
                 {
-                    SvFileStream aNew("c:\\test_combined.png", StreamMode::WRITE|StreamMode::TRUNC);
+                    SvFileStream aNew(
+#ifdef _WIN32
+                    "c:\\test_combined.png"
+#else
+                    "~/test_combined.png"
+#endif
+                    , StreamMode::WRITE|StreamMode::TRUNC);
                     vcl::PNGWriter aPNGWriter(aRetval);
                     aPNGWriter.Write(aNew);
                 }