Add PDFWriter debug mode (ie: uncompressed output).

Fixes https://gitlab.com/kicad/code/kicad/issues/5593

common/advanced_config.cpp

@@ -139,6 +139,8 @@ static const wxChar MinPlotPenWidth[] = wxT( "MinPlotPenWidth" );
 
 static const wxChar DebugZoneFiller[] = wxT( "DebugZoneFiller" );
 
+static const wxChar DebugPDFWriter[] = wxT( "DebugPDFWriter" );
+
 static const wxChar SkipBoundingBoxFpLoad[] = wxT( "SkipBoundingBoxFpLoad" );
 
 } // namespace KEYS
@@ -237,6 +239,7 @@ ADVANCED_CFG::ADVANCED_CFG()
     m_MinPlotPenWidth           = 0.0212;   // 1 pixel at 1200dpi.
 
     m_DebugZoneFiller           = false;
+    m_DebugPDFWriter            = false;
 
     m_SkipBoundingBoxOnFpLoad   = false;
 
@@ -317,6 +320,9 @@ void ADVANCED_CFG::loadSettings( wxConfigBase& aCfg )
     configParams.push_back( new PARAM_CFG_BOOL( true, AC_KEYS::DebugZoneFiller,
                                                 &m_DebugZoneFiller, false ) );
 
+    configParams.push_back( new PARAM_CFG_BOOL( true, AC_KEYS::DebugPDFWriter,
+                                                &m_DebugPDFWriter, false ) );
+
     configParams.push_back( new PARAM_CFG_BOOL( true, AC_KEYS::SkipBoundingBoxFpLoad,
                                                 &m_SkipBoundingBoxOnFpLoad, false ) );
 

common/plotters/PDF_plotter.cpp

@@ -28,15 +28,15 @@
  */
 
 #include <trigo.h>
-#include <eda_base_frame.h>
+#include <algorithm>
-#include <eda_item.h>
+//#include <eda_base_frame.h>
+//#include <eda_item.h>
 #include <wx/zstream.h>
 #include <wx/mstream.h>
-#include <macros.h>
+//#include <macros.h>
-#include <math/util.h>      // for KiROUND
+//#include <math/util.h>      // for KiROUND
 #include <render_settings.h>
-
+#include <advanced_config.h>
-#include <algorithm>
 
 #include "plotters_pslike.h"
 
@@ -552,9 +552,19 @@ int PDF_PLOTTER::startPdfStream(int handle)
     // This is guaranteed to be handle+1 but needs to be allocated since
     // you could allocate more object during stream preparation
     streamLengthHandle = allocPdfObject();
+
+    if( ADVANCED_CFG::GetCfg().m_DebugPDFWriter )
+    {
+        fprintf( outputFile,
+                 "<< /Length %d 0 R >>\n" // Length is deferred
+                 "stream\n", handle + 1 );
+    }
+    else
+    {
         fprintf( outputFile,
                  "<< /Length %d 0 R /Filter /FlateDecode >>\n" // Length is deferred
                  "stream\n", handle + 1 );
+    }
 
     // Open a temporary file to accumulate the stream
     workFilename = wxFileName::CreateTempFileName( "" );
@@ -592,6 +602,15 @@ void PDF_PLOTTER::closePdfStream()
     workFile = 0;
     ::wxRemoveFile( workFilename );
 
+    unsigned out_count;
+
+    if( ADVANCED_CFG::GetCfg().m_DebugPDFWriter )
+    {
+        out_count = stream_len;
+        fwrite( inbuf, out_count, 1, outputFile );
+    }
+    else
+    {
         // NULL means memos owns the memory, but provide a hint on optimum size needed.
         wxMemoryOutputStream    memos( NULL, std::max( 2000l, stream_len ) ) ;
 
@@ -613,9 +632,9 @@ void PDF_PLOTTER::closePdfStream()
 
         wxStreamBuffer* sb = memos.GetOutputStreamBuffer();
 
-    unsigned out_count = sb->Tell();
+        out_count = sb->Tell();
-
         fwrite( sb->GetBufferStart(), 1, out_count, outputFile );
+    }
 
     fputs( "endstream\n", outputFile );
     closePdfObject();

include/advanced_config.h

@@ -142,6 +142,11 @@ public:
      */
     bool m_DebugZoneFiller;
 
+    /**
+     * A mode that writes PDF's without compression.
+     */
+    bool m_DebugPDFWriter;
+
     /**
      * Skip bounding box calculation when loading footprints
      */