diff options
Diffstat (limited to 'core/src/fxge/agg/agg23/fx_agg_curves.cpp')
| -rw-r--r-- | core/src/fxge/agg/agg23/fx_agg_curves.cpp | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/core/src/fxge/agg/agg23/fx_agg_curves.cpp b/core/src/fxge/agg/agg23/fx_agg_curves.cpp deleted file mode 100644 index 861320ee70..0000000000 --- a/core/src/fxge/agg/agg23/fx_agg_curves.cpp +++ /dev/null @@ -1,109 +0,0 @@ - -//---------------------------------------------------------------------------- -// XYQ: 2006-01-22 Copied from AGG project. -// TODO: This file uses intensive floating point operations, so it's NOT suitable -// for platforms like Symbian OS. We need to change to FIX format. -//---------------------------------------------------------------------------- -//---------------------------------------------------------------------------- -// 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 -//---------------------------------------------------------------------------- -#include "../../../../include/fxcrt/fx_basic.h" -#include "agg_curves.h" -#include "agg_math.h" -namespace agg -{ -const FX_FLOAT curve_collinearity_epsilon = 1e-30f; -enum curve_recursion_limit_e { curve_recursion_limit = 16 }; -void curve4_div::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_points.remove_all(); - m_distance_tolerance_square = 1.0f / 4; - m_distance_tolerance_manhattan = 1.0f * 4; - bezier(x1, y1, x2, y2, x3, y3, x4, y4); - m_count = 0; -} -void curve4_div::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) -{ - if(level > curve_recursion_limit) { - return; - } - FX_FLOAT x12 = (x1 + x2) / 2; - FX_FLOAT y12 = (y1 + y2) / 2; - FX_FLOAT x23 = (x2 + x3) / 2; - FX_FLOAT y23 = (y2 + y3) / 2; - FX_FLOAT x34 = (x3 + x4) / 2; - FX_FLOAT y34 = (y3 + y4) / 2; - FX_FLOAT x123 = (x12 + x23) / 2; - FX_FLOAT y123 = (y12 + y23) / 2; - FX_FLOAT x234 = (x23 + x34) / 2; - FX_FLOAT y234 = (y23 + y34) / 2; - FX_FLOAT x1234 = (x123 + x234) / 2; - FX_FLOAT y1234 = (y123 + y234) / 2; - FX_FLOAT dx = x4 - x1; - FX_FLOAT dy = y4 - y1; - FX_FLOAT d2 = FXSYS_fabs(FXSYS_Mul(x2 - x4, dy) - FXSYS_Mul(y2 - y4, dx)); - FX_FLOAT d3 = FXSYS_fabs(FXSYS_Mul(x3 - x4, dy) - FXSYS_Mul(y3 - y4, dx)); - switch((int(d2 > curve_collinearity_epsilon) << 1) + - int(d3 > curve_collinearity_epsilon)) { - case 0: - if(FXSYS_fabs(x1 + x3 - x2 - x2) + - FXSYS_fabs(y1 + y3 - y2 - y2) + - FXSYS_fabs(x2 + x4 - x3 - x3) + - FXSYS_fabs(y2 + y4 - y3 - y3) <= m_distance_tolerance_manhattan) { - m_points.add(point_type(x1234, y1234, path_flags_jr)); - return; - } - break; - case 1: - if(FXSYS_Mul(d3, d3) <= FXSYS_Mul(m_distance_tolerance_square, - FXSYS_Mul(dx, dx) + FXSYS_Mul(dy, dy))) { - m_points.add(point_type(x23, y23, path_flags_jr)); - return; - } - break; - case 2: - if(FXSYS_Mul(d2, d2) <= FXSYS_Mul(m_distance_tolerance_square, - FXSYS_Mul(dx, dx) + FXSYS_Mul(dy, dy))) { - m_points.add(point_type(x23, y23, path_flags_jr)); - return; - } - break; - case 3: - if(FXSYS_Mul(d2 + d3, d2 + d3) <= FXSYS_Mul(m_distance_tolerance_square, - FXSYS_Mul(dx, dx) + FXSYS_Mul(dy, dy))) { - m_points.add(point_type(x23, y23, path_flags_jr)); - return; - } - break; - } - recursive_bezier(x1, y1, x12, y12, x123, y123, x1234, y1234, level + 1); - recursive_bezier(x1234, y1234, x234, y234, x34, y34, x4, y4, level + 1); -} -void curve4_div::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) -{ - m_points.add(point_type(x1, y1)); - recursive_bezier(x1, y1, x2, y2, x3, y3, x4, y4, 0); - m_points.add(point_type(x4, y4)); -} -} |