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authorTom Sepez <tsepez@chromium.org>2015-06-16 16:29:44 -0700
committerTom Sepez <tsepez@chromium.org>2015-06-16 16:29:44 -0700
commit2ca8fcbc8a7a3ef6adfac154c47068c1696205d0 (patch)
treede3f825c75b1b92908825f68af8a4e7146cf97fd /third_party/agg23/agg_curves.h
parentea44bd064a86679a47a7265020f997d6e3b88336 (diff)
downloadpdfium-2ca8fcbc8a7a3ef6adfac154c47068c1696205d0.tar.xz
Separate agg-authored code from fx-authored code.chromium/2439chromium/2438chromium/2437chromium/2436chromium/2435
Creates a separate library so we can apply less-strict warnings to the code we can't change from upstream vs. the code we can change, reducing noise in the standalone build. Remove needless foo.{cpp,h} files that merely perform indirection via #include "some_other_path/foo.{cpp,h}". BUG=pdfium:166 R=brucedawson@chromium.org, thestig@chromium.org Review URL: https://codereview.chromium.org/1152743007.
Diffstat (limited to 'third_party/agg23/agg_curves.h')
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1 files changed, 188 insertions, 0 deletions
diff --git a/third_party/agg23/agg_curves.h b/third_party/agg23/agg_curves.h
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+
+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+// Copyright (C) 2005 Tony Juricic (tonygeek@yahoo.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_CURVES_INCLUDED
+#define AGG_CURVES_INCLUDED
+#include "agg_array.h"
+namespace agg
+{
+struct curve4_points {
+ FX_FLOAT cp[8];
+ curve4_points() {}
+ curve4_points(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4)
+ {
+ cp[0] = x1;
+ cp[1] = y1;
+ cp[2] = x2;
+ cp[3] = y2;
+ cp[4] = x3;
+ cp[5] = y3;
+ cp[6] = x4;
+ cp[7] = y4;
+ }
+ void init(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4)
+ {
+ cp[0] = x1;
+ cp[1] = y1;
+ cp[2] = x2;
+ cp[3] = y2;
+ cp[4] = x3;
+ cp[5] = y3;
+ cp[6] = x4;
+ cp[7] = y4;
+ }
+ FX_FLOAT operator [] (unsigned i) const
+ {
+ return cp[i];
+ }
+ FX_FLOAT& operator [] (unsigned i)
+ {
+ return cp[i];
+ }
+};
+class curve4_div
+{
+public:
+ curve4_div() :
+ m_count(0)
+ {}
+ curve4_div(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4) :
+ m_count(0)
+ {
+ init(x1, y1, x2, y2, x3, y3, x4, y4);
+ }
+ curve4_div(const curve4_points& cp) :
+ m_count(0)
+ {
+ init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
+ }
+ void reset()
+ {
+ m_points.remove_all();
+ m_count = 0;
+ }
+ void init(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4);
+ void init(const curve4_points& cp)
+ {
+ init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
+ }
+ void rewind(unsigned)
+ {
+ m_count = 0;
+ }
+ unsigned vertex(FX_FLOAT* x, FX_FLOAT* y)
+ {
+ if(m_count >= m_points.size()) {
+ return path_cmd_stop;
+ }
+ const point_type& p = m_points[m_count++];
+ *x = p.x;
+ *y = p.y;
+ return (m_count == 1) ? path_cmd_move_to : path_cmd_line_to;
+ }
+ unsigned vertex_flag(FX_FLOAT* x, FX_FLOAT* y, int& flag)
+ {
+ if(m_count >= m_points.size()) {
+ return path_cmd_stop;
+ }
+ const point_type& p = m_points[m_count++];
+ *x = p.x;
+ *y = p.y;
+ flag = p.flag;
+ return (m_count == 1) ? path_cmd_move_to : path_cmd_line_to;
+ }
+ int count()
+ {
+ return m_points.size();
+ }
+private:
+ void bezier(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4);
+ void recursive_bezier(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4,
+ unsigned level);
+ FX_FLOAT m_distance_tolerance_square;
+ FX_FLOAT m_distance_tolerance_manhattan;
+ unsigned m_count;
+ pod_deque<point_type> m_points;
+};
+class curve4
+{
+public:
+ curve4() {}
+ curve4(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4)
+ {
+ init(x1, y1, x2, y2, x3, y3, x4, y4);
+ }
+ curve4(const curve4_points& cp)
+ {
+ init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
+ }
+ void reset()
+ {
+ m_curve_div.reset();
+ }
+ void init(FX_FLOAT x1, FX_FLOAT y1,
+ FX_FLOAT x2, FX_FLOAT y2,
+ FX_FLOAT x3, FX_FLOAT y3,
+ FX_FLOAT x4, FX_FLOAT y4)
+ {
+ m_curve_div.init(x1, y1, x2, y2, x3, y3, x4, y4);
+ }
+ void init(const curve4_points& cp)
+ {
+ init(cp[0], cp[1], cp[2], cp[3], cp[4], cp[5], cp[6], cp[7]);
+ }
+ void rewind(unsigned path_id)
+ {
+ m_curve_div.rewind(path_id);
+ }
+ unsigned vertex(FX_FLOAT* x, FX_FLOAT* y)
+ {
+ return m_curve_div.vertex(x, y);
+ }
+ unsigned vertex_curve_flag(FX_FLOAT* x, FX_FLOAT* y, int& flag)
+ {
+ return m_curve_div.vertex_flag(x, y, flag);
+ }
+ int count()
+ {
+ return m_curve_div.count();
+ }
+private:
+ curve4_div m_curve_div;
+};
+}
+#endif