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Diffstat (limited to 'agg/inc/agg_span_interpolator_linear.h')
-rwxr-xr-x | agg/inc/agg_span_interpolator_linear.h | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/agg/inc/agg_span_interpolator_linear.h b/agg/inc/agg_span_interpolator_linear.h deleted file mode 100755 index 3cc2426be450..000000000000 --- a/agg/inc/agg_span_interpolator_linear.h +++ /dev/null @@ -1,232 +0,0 @@ -//---------------------------------------------------------------------------- -// 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_SPAN_INTERPOLATOR_LINEAR_INCLUDED -#define AGG_SPAN_INTERPOLATOR_LINEAR_INCLUDED - -#include "agg_basics.h" -#include "agg_dda_line.h" -#include "agg_trans_affine.h" - -namespace agg -{ - - //================================================span_interpolator_linear - template<class Transformer = trans_affine, unsigned SubpixelShift = 8> - class span_interpolator_linear - { - public: - typedef Transformer trans_type; - - enum - { - subpixel_shift = SubpixelShift, - subpixel_size = 1 << subpixel_shift - }; - - //-------------------------------------------------------------------- - span_interpolator_linear() {} - span_interpolator_linear(const trans_type& trans) : m_trans(&trans) {} - span_interpolator_linear(const trans_type& trans, - double x, double y, unsigned len) : - m_trans(&trans) - { - begin(x, y, len); - } - - //---------------------------------------------------------------- - const trans_type& transformer() const { return *m_trans; } - void transformer(const trans_type& trans) { m_trans = &trans; } - - //---------------------------------------------------------------- - void begin(double x, double y, unsigned len) - { - double tx; - double ty; - - tx = x; - ty = y; - m_trans->transform(&tx, &ty); - int x1 = int(tx * subpixel_size); - int y1 = int(ty * subpixel_size); - - tx = x + len; - ty = y; - m_trans->transform(&tx, &ty); - int x2 = int(tx * subpixel_size); - int y2 = int(ty * subpixel_size); - - m_li_x = dda2_line_interpolator(x1, x2, len); - m_li_y = dda2_line_interpolator(y1, y2, len); - } - - //---------------------------------------------------------------- - void resynchronize(double xe, double ye, unsigned len) - { - m_trans->transform(&xe, &ye); - m_li_x = dda2_line_interpolator(m_li_x.y(), int(xe * subpixel_size), len); - m_li_y = dda2_line_interpolator(m_li_y.y(), int(ye * subpixel_size), len); - } - - //---------------------------------------------------------------- - void operator++() - { - ++m_li_x; - ++m_li_y; - } - - //---------------------------------------------------------------- - void coordinates(int* x, int* y) const - { - *x = m_li_x.y(); - *y = m_li_y.y(); - } - - private: - const trans_type* m_trans; - dda2_line_interpolator m_li_x; - dda2_line_interpolator m_li_y; - }; - - - - - - - //=====================================span_interpolator_linear_subdiv - template<class Transformer = trans_affine, unsigned SubpixelShift = 8> - class span_interpolator_linear_subdiv - { - public: - typedef Transformer trans_type; - - enum - { - subpixel_shift = SubpixelShift, - subpixel_size = 1 << subpixel_shift - }; - - - //---------------------------------------------------------------- - span_interpolator_linear_subdiv() : - m_subdiv_shift(4), - m_subdiv_size(1 << m_subdiv_shift), - m_subdiv_mask(m_subdiv_size - 1) {} - - span_interpolator_linear_subdiv(const trans_type& trans, - unsigned subdiv_shift = 4) : - m_subdiv_shift(subdiv_shift), - m_subdiv_size(1 << m_subdiv_shift), - m_subdiv_mask(m_subdiv_size - 1), - m_trans(&trans) {} - - span_interpolator_linear_subdiv(const trans_type& trans, - double x, double y, unsigned len, - unsigned subdiv_shift = 4) : - m_subdiv_shift(subdiv_shift), - m_subdiv_size(1 << m_subdiv_shift), - m_subdiv_mask(m_subdiv_size - 1), - m_trans(&trans) - { - begin(x, y, len); - } - - //---------------------------------------------------------------- - const trans_type& transformer() const { return *m_trans; } - void transformer(const trans_type& trans) { m_trans = &trans; } - - //---------------------------------------------------------------- - unsigned subdiv_shift() const { return m_subdiv_shift; } - void subdiv_shift(unsigned shift) - { - m_subdiv_shift = shift; - m_subdiv_size = 1 << m_subdiv_shift; - m_subdiv_mask = m_subdiv_size - 1; - } - - //---------------------------------------------------------------- - void begin(double x, double y, unsigned len) - { - double tx; - double ty; - m_pos = 1; - m_src_x = int(x * subpixel_size) + subpixel_size; - m_src_y = y; - m_len = len; - - if(len > m_subdiv_size) len = m_subdiv_size; - tx = x; - ty = y; - m_trans->transform(&tx, &ty); - int x1 = int(tx * subpixel_size); - int y1 = int(ty * subpixel_size); - - tx = x + len; - ty = y; - m_trans->transform(&tx, &ty); - - m_li_x = dda2_line_interpolator(x1, int(tx * subpixel_size), len); - m_li_y = dda2_line_interpolator(y1, int(ty * subpixel_size), len); - } - - //---------------------------------------------------------------- - void operator++() - { - ++m_li_x; - ++m_li_y; - if(m_pos >= m_subdiv_size) - { - unsigned len = m_len; - if(len > m_subdiv_size) len = m_subdiv_size; - double tx = double(m_src_x) / double(subpixel_size) + len; - double ty = m_src_y; - m_trans->transform(&tx, &ty); - m_li_x = dda2_line_interpolator(m_li_x.y(), int(tx * subpixel_size), len); - m_li_y = dda2_line_interpolator(m_li_y.y(), int(ty * subpixel_size), len); - m_pos = 0; - } - m_src_x += subpixel_size; - ++m_pos; - --m_len; - } - - //---------------------------------------------------------------- - void coordinates(int* x, int* y) const - { - *x = m_li_x.y(); - *y = m_li_y.y(); - } - - private: - unsigned m_subdiv_shift; - unsigned m_subdiv_size; - unsigned m_subdiv_mask; - const trans_type* m_trans; - dda2_line_interpolator m_li_x; - dda2_line_interpolator m_li_y; - int m_src_x; - double m_src_y; - unsigned m_pos; - unsigned m_len; - }; - - -} - - - -#endif - - |