Merge to XFA: Separate agg-authored code from fx-authored code.

Original Review URL: https://codereview.chromium.org/1152743007.
BUG=pdfium:166
R=brucedawson@chromium.org, thestig@chromium.org
TBR=brucedawson@chromium.org, thestig@chromium.org

Review URL: https://codereview.chromium.org/1186423003.

1 files changed, 120 insertions, 0 deletions

diff --git a/third_party/agg23/agg_vcgen_stroke.h b/third_party/agg23/agg_vcgen_stroke.h
new file mode 100644
index 0000000000..84fadd6ed8
--- /dev/null
+++ b/third_party/agg23/agg_vcgen_stroke.h
@@ -0,0 +1,120 @@
+
+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+//
+// Permission to copy, use, modify, sell and distribute this software
+// is granted provided this copyright notice appears in all copies.
+// This software is provided "as is" without express or implied
+// warranty, and with no claim as to its suitability for any purpose.
+//
+//----------------------------------------------------------------------------
+// Contact: mcseem@antigrain.com
+//          mcseemagg@yahoo.com
+//          http://www.antigrain.com
+//----------------------------------------------------------------------------
+#ifndef AGG_VCGEN_STROKE_INCLUDED
+#define AGG_VCGEN_STROKE_INCLUDED
+#include "agg_math_stroke.h"
+namespace agg
+{
+class vcgen_stroke 
+{
+    enum status_e {
+        initial,
+        ready,
+        cap1,
+        cap2,
+        outline1,
+        close_first,
+        outline2,
+        out_vertices,
+        end_poly1,
+        end_poly2,
+        stop
+    };
+public:
+    typedef vertex_sequence<vertex_dist_cmd, 6> vertex_storage;
+    typedef pod_deque<point_type, 6>        coord_storage;
+    vcgen_stroke();
+    void line_cap(line_cap_e lc)
+    {
+        m_line_cap = lc;
+    }
+    void line_join(line_join_e lj)
+    {
+        m_line_join = lj;
+    }
+    void inner_join(inner_join_e ij)
+    {
+        m_inner_join = ij;
+    }
+    line_cap_e   line_cap()   const
+    {
+        return m_line_cap;
+    }
+    line_join_e  line_join()  const
+    {
+        return m_line_join;
+    }
+    inner_join_e inner_join() const
+    {
+        return m_inner_join;
+    }
+    void width(FX_FLOAT w)
+    {
+        m_width = w / 2;
+    }
+    void miter_limit(FX_FLOAT ml)
+    {
+        m_miter_limit = ml;
+    }
+    void miter_limit_theta(FX_FLOAT t);
+    void inner_miter_limit(FX_FLOAT ml)
+    {
+        m_inner_miter_limit = ml;
+    }
+    void approximation_scale(FX_FLOAT as)
+    {
+        m_approx_scale = as;
+    }
+    FX_FLOAT width() const
+    {
+        return m_width * 2;
+    }
+    FX_FLOAT miter_limit() const
+    {
+        return m_miter_limit;
+    }
+    FX_FLOAT inner_miter_limit() const
+    {
+        return m_inner_miter_limit;
+    }
+    FX_FLOAT approximation_scale() const
+    {
+        return m_approx_scale;
+    }
+    void remove_all();
+    void add_vertex(FX_FLOAT x, FX_FLOAT y, unsigned cmd);
+    void     rewind(unsigned path_id);
+    unsigned vertex(FX_FLOAT* x, FX_FLOAT* y);
+private:
+    vcgen_stroke(const vcgen_stroke&);
+    const vcgen_stroke& operator = (const vcgen_stroke&);
+    vertex_storage m_src_vertices;
+    coord_storage  m_out_vertices;
+    FX_FLOAT         m_width;
+    FX_FLOAT         m_miter_limit;
+    FX_FLOAT         m_inner_miter_limit;
+    FX_FLOAT         m_approx_scale;
+    line_cap_e     m_line_cap;
+    line_join_e    m_line_join;
+    inner_join_e   m_inner_join;
+    unsigned       m_closed;
+    status_e       m_status;
+    status_e       m_prev_status;
+    unsigned       m_src_vertex;
+    unsigned       m_out_vertex;
+};
+}
+#endif