Mirror checkboxes added to the UI.

Everything seems to work fine.

src/libslic3r/SLA/SLARaster.cpp

@@ -58,6 +58,7 @@ private:
     
     std::function<double(double)> m_gammafn;
     std::array<bool, 2> m_mirror;
+    Format m_fmt = Format::PNG;
     
     inline void flipy(agg::path_storage& path) const {
         path.flip_y(0, m_resolution.height_px);
@@ -101,6 +102,7 @@ public:
         case Format::PNG: m_mirror = {false, true}; break;
         case Format::RAW: m_mirror = {false, false}; break;
         }
+        m_fmt = fmt;
     }
 
     template<class P> void draw(const P &poly) {
@@ -131,6 +133,8 @@ public:
     }
 
     inline TBuffer& buffer()  { return m_buf; }
+    
+    inline Format format() const { return m_fmt; }
 
     inline const Raster::Resolution resolution() { return m_resolution; }
    
@@ -258,6 +262,11 @@ void Raster::save(std::ostream& stream, Format fmt)
     }
 }
 
+void Raster::save(std::ostream &stream)
+{
+    save(stream, m_impl->format());
+}
+
 RawBytes Raster::save(Format fmt)
 {
     assert(m_impl);
@@ -300,6 +309,11 @@ RawBytes Raster::save(Format fmt)
     return {std::move(data)};
 }
 
+RawBytes Raster::save()
+{
+    return save(m_impl->format());
+}
+
 }
 }
 

src/libslic3r/SLA/SLARaster.hpp

@@ -100,8 +100,17 @@ public:
     ~Raster();
 
     /// Reallocated everything for the given resolution and pixel dimension.
-    void reset(const Resolution&, const PixelDim&, const std::array<bool, 2>& mirror, double gamma = 1.0);
-    void reset(const Resolution& r, const PixelDim& pd, Format o, double gamma = 1.0);
+    /// The third parameter is either the X, Y mirroring or a supported format 
+    /// for which the correct mirroring will be configured.
+    void reset(const Resolution&, 
+               const PixelDim&, 
+               const std::array<bool, 2>& mirror, 
+               double gamma = 1.0);
+    
+    void reset(const Resolution& r, 
+               const PixelDim& pd, 
+               Format o, 
+               double gamma = 1.0);
     
     /**
      * Release the allocated resources. Drawing in this state ends in
@@ -119,11 +128,17 @@ public:
     void draw(const ExPolygon& poly);
     void draw(const ClipperLib::Polygon& poly);
 
+    // Saving the raster: 
+    // It is possible to override the format given in the constructor but
+    // be aware that the mirroring will not be modified.
+    
     /// Save the raster on the specified stream.
-    void save(std::ostream& stream, Format = Format::PNG);
+    void save(std::ostream& stream, Format);
+    void save(std::ostream& stream);
 
     /// Save into a continuous byte stream which is returned.
-    RawBytes save(Format fmt = Format::PNG);
+    RawBytes save(Format fmt);
+    RawBytes save();
 };
 
 } // sla