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diff --git a/src/libslic3r/Rasterizer/Rasterizer.hpp b/src/libslic3r/Rasterizer/Rasterizer.hpp
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+++ b/src/libslic3r/Rasterizer/Rasterizer.hpp
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+#ifndef RASTERIZER_HPP
+#define RASTERIZER_HPP
+
+#include <ostream>
+#include <memory>
+
+namespace Slic3r {
+
+class ExPolygon;
+
+/**
+ * @brief Raster captures an anti-aliased monochrome canvas where vectorial
+ * polygons can be rasterized. Fill color is always white and the background is
+ * black. Contours are anti-aliased.
+ *
+ * It also supports saving the raster data into a standard output stream in raw
+ * or PNG format.
+ */
+class Raster {
+    class Impl;
+    std::unique_ptr<Impl> impl_;
+public:
+
+    /// Supported compression types
+    enum class Compression {
+        RAW,    //!> Uncompressed pixel data
+        PNG     //!> PNG compression
+    };
+
+    enum class Origin {
+        TOP_LEFT,
+        BOTTOM_LEFT
+    };
+
+    /// Type that represents a resolution in pixels.
+    struct Resolution {
+        unsigned width_px;
+        unsigned height_px;
+        inline Resolution(unsigned w, unsigned h): width_px(w), height_px(h) {}
+        inline unsigned pixels() const /*noexcept*/ {
+            return width_px * height_px;
+        }
+    };
+
+    /// Types that represents the dimension of a pixel in millimeters.
+    struct PixelDim {
+        double w_mm;
+        double h_mm;
+        inline PixelDim(double px_width_mm, double px_height_mm ):
+            w_mm(px_width_mm), h_mm(px_height_mm) {}
+    };
+
+    /// Constructor taking the resolution and the pixel dimension.
+    explicit Raster(const Resolution& r, const PixelDim& pd,
+                    Origin o = Origin::BOTTOM_LEFT );
+    Raster();
+    Raster(const Raster& cpy) = delete;
+    Raster& operator=(const Raster& cpy) = delete;
+    Raster(Raster&& m);
+    ~Raster();
+
+    /// Reallocated everything for the given resolution and pixel dimension.
+    void reset(const Resolution& r, const PixelDim& pd);
+    void reset(const Resolution& r, const PixelDim& pd, Origin o);
+
+    /**
+     * Release the allocated resources. Drawing in this state ends in
+     * unspecified behaviour.
+     */
+    void reset();
+
+    /// Get the resolution of the raster.
+    Resolution resolution() const;
+
+    /// Clear the raster with black color.
+    void clear();
+
+    /// Draw a polygon with holes.
+    void draw(const ExPolygon& poly);
+
+    /// Save the raster on the specified stream.
+    void save(std::ostream& stream, Compression comp = Compression::RAW);
+};
+
+}
+#endif // RASTERIZER_HPP