1 files changed, 93 insertions, 0 deletions
diff --git a/src/extension/internal/metafile-inout.h b/src/extension/internal/metafile-inout.h
new file mode 100644
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+++ b/src/extension/internal/metafile-inout.h
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * @brief Metafile input - common functions
+ *//*
+ * Authors:
+ *   David Mathog
+ *
+ * Copyright (C) 2013 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifndef SEEN_INKSCAPE_EXTENSION_INTERNAL_METAFILE_INOUT_H
+#define SEEN_INKSCAPE_EXTENSION_INTERNAL_METAFILE_INOUT_H
+
+#define PNG_SKIP_SETJMP_CHECK // else any further png.h include blows up in the compiler
+#include <png.h>
+#include <cstdio>
+#include <cstdlib>
+#include <cstdint>
+#include <map>
+#include <stack>
+#include <glibmm/ustring.h>
+#include <3rdparty/libuemf/uemf.h>
+#include <2geom/affine.h>
+#include <2geom/pathvector.h>
+
+#include "extension/implementation/implementation.h"
+
+class SPObject;
+
+namespace Inkscape {
+class Pixbuf;
+
+namespace Extension {
+namespace Internal {
+
+/* A coloured pixel. */
+struct pixel_t {
+    uint8_t red;
+    uint8_t green;
+    uint8_t blue;
+    uint8_t opacity;
+};
+
+/* A picture. */
+struct bitmap_t {
+    pixel_t *pixels;
+    size_t width;
+    size_t height;
+};
+    
+/* structure to store PNG image bytes */
+struct MEMPNG {
+      char *buffer;
+      size_t size;
+};
+using PMEMPNG = MEMPNG *;
+
+class Metafile
+    : public Inkscape::Extension::Implementation::Implementation
+{
+public:
+    Metafile() = default;
+    ~Metafile() override;
+
+protected:
+    static uint32_t    sethexcolor(U_COLORREF color);
+    static pixel_t    *pixel_at (bitmap_t * bitmap, int x, int y);
+    static void        my_png_write_data(png_structp png_ptr, png_bytep data, png_size_t length);
+    static void        toPNG(PMEMPNG accum, int width, int height, const char *px);
+    static gchar      *bad_image_png();
+    static void        setViewBoxIfMissing(SPDocument *doc);
+    static int         combine_ops_to_livarot(const int op);
+
+
+private:
+};
+
+} // namespace Internal
+} // namespace Extension
+} // namespace Inkscape
+
+#endif // SEEN_INKSCAPE_EXTENSION_INTERNAL_METAFILE_INOUT_H
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/