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-rwxr-xr-xagg/inc/agg_span_image_filter_gray.h701
1 files changed, 0 insertions, 701 deletions
diff --git a/agg/inc/agg_span_image_filter_gray.h b/agg/inc/agg_span_image_filter_gray.h
deleted file mode 100755
index 3f7ae6fcfa72..000000000000
--- a/agg/inc/agg_span_image_filter_gray.h
+++ /dev/null
@@ -1,701 +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
-//----------------------------------------------------------------------------
-//
-// Adaptation for high precision colors has been sponsored by
-// Liberty Technology Systems, Inc., visit http://lib-sys.com
-//
-// Liberty Technology Systems, Inc. is the provider of
-// PostScript and PDF technology for software developers.
-//
-//----------------------------------------------------------------------------
-
-#ifndef AGG_SPAN_IMAGE_FILTER_GRAY_INCLUDED
-#define AGG_SPAN_IMAGE_FILTER_GRAY_INCLUDED
-
-#include "agg_basics.h"
-#include "agg_color_gray.h"
-#include "agg_span_image_filter.h"
-
-
-namespace agg
-{
-
-
- //==============================================span_image_filter_gray_nn
- template<class ColorT,
- class Interpolator,
- class Allocator = span_allocator<ColorT> >
- class span_image_filter_gray_nn :
- public span_image_filter<ColorT, Interpolator, Allocator>
- {
- public:
- typedef ColorT color_type;
- typedef Interpolator interpolator_type;
- typedef Allocator alloc_type;
- typedef span_image_filter<color_type, interpolator_type, alloc_type> base_type;
- typedef typename color_type::value_type value_type;
- typedef typename color_type::calc_type calc_type;
- enum
- {
- base_shift = color_type::base_shift,
- base_mask = color_type::base_mask
- };
-
- //--------------------------------------------------------------------
- span_image_filter_gray_nn(alloc_type& alloc) : base_type(alloc) {}
-
- //--------------------------------------------------------------------
- span_image_filter_gray_nn(alloc_type& alloc,
- const rendering_buffer& src,
- const color_type& back_color,
- interpolator_type& inter) :
- base_type(alloc, src, back_color, inter, 0)
- {}
-
- //--------------------------------------------------------------------
- color_type* generate(int x, int y, unsigned len)
- {
- base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
- y + base_type::filter_dy_dbl(), len);
-
- calc_type fg;
- calc_type src_alpha;
-
- color_type* span = base_type::allocator().span();
-
- int maxx = base_type::source_image().width() - 1;
- int maxy = base_type::source_image().height() - 1;
-
- do
- {
- base_type::interpolator().coordinates(&x, &y);
-
- x >>= image_subpixel_shift;
- y >>= image_subpixel_shift;
-
- if(x >= 0 && y >= 0 &&
- x <= maxx && y <= maxy)
- {
- fg = *((const value_type*)base_type::source_image().row(y) + x);
- src_alpha = base_mask;
- }
- else
- {
- fg = base_type::background_color().v;
- src_alpha = base_type::background_color().a;
- }
-
- span->v = (value_type)fg;
- span->a = (value_type)src_alpha;
- ++span;
- ++base_type::interpolator();
-
- } while(--len);
-
- return base_type::allocator().span();
- }
- };
-
-
-
-
- //========================================span_image_filter_gray_bilinear
- template<class ColorT,
- class Interpolator,
- class Allocator = span_allocator<ColorT> >
- class span_image_filter_gray_bilinear :
- public span_image_filter<ColorT, Interpolator, Allocator>
- {
- public:
- typedef ColorT color_type;
- typedef Interpolator interpolator_type;
- typedef Allocator alloc_type;
- typedef span_image_filter<color_type, interpolator_type, alloc_type> base_type;
- typedef typename color_type::value_type value_type;
- typedef typename color_type::calc_type calc_type;
- enum
- {
- base_shift = color_type::base_shift,
- base_mask = color_type::base_mask
- };
-
- //--------------------------------------------------------------------
- span_image_filter_gray_bilinear(alloc_type& alloc) : base_type(alloc) {}
-
- //--------------------------------------------------------------------
- span_image_filter_gray_bilinear(alloc_type& alloc,
- const rendering_buffer& src,
- const color_type& back_color,
- interpolator_type& inter) :
- base_type(alloc, src, back_color, inter, 0)
- {}
-
- //--------------------------------------------------------------------
- color_type* generate(int x, int y, unsigned len)
- {
- base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
- y + base_type::filter_dy_dbl(), len);
- calc_type fg;
- calc_type src_alpha;
- value_type back_v = base_type::background_color().v;
- value_type back_a = base_type::background_color().a;
-
- const value_type *fg_ptr;
-
- color_type* span = base_type::allocator().span();
-
- int maxx = base_type::source_image().width() - 1;
- int maxy = base_type::source_image().height() - 1;
-
- do
- {
- int x_hr;
- int y_hr;
-
- base_type::interpolator().coordinates(&x_hr, &y_hr);
-
- x_hr -= base_type::filter_dx_int();
- y_hr -= base_type::filter_dy_int();
-
- int x_lr = x_hr >> image_subpixel_shift;
- int y_lr = y_hr >> image_subpixel_shift;
-
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr < maxx && y_lr < maxy)
- {
- fg = image_subpixel_size * image_subpixel_size / 2;
-
- x_hr &= image_subpixel_mask;
- y_hr &= image_subpixel_mask;
- fg_ptr = (const value_type*)base_type::source_image().row(y_lr) + x_lr;
-
- fg += *fg_ptr++ * (image_subpixel_size - x_hr) * (image_subpixel_size - y_hr);
- fg += *fg_ptr++ * (image_subpixel_size - y_hr) * x_hr;
-
- fg_ptr = (const value_type*)base_type::source_image().next_row(fg_ptr - 2);
-
- fg += *fg_ptr++ * (image_subpixel_size - x_hr) * y_hr;
- fg += *fg_ptr++ * x_hr * y_hr;
-
- fg >>= image_subpixel_shift * 2;
- src_alpha = base_mask;
- }
- else
- {
- unsigned weight;
- if(x_lr < -1 || y_lr < -1 ||
- x_lr > maxx || y_lr > maxy)
- {
- fg = back_v;
- src_alpha = back_a;
- }
- else
- {
- fg =
- src_alpha = image_subpixel_size * image_subpixel_size / 2;
-
- x_hr &= image_subpixel_mask;
- y_hr &= image_subpixel_mask;
-
- weight = (image_subpixel_size - x_hr) *
- (image_subpixel_size - y_hr);
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
-
- x_lr++;
-
- weight = x_hr * (image_subpixel_size - y_hr);
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
-
- x_lr--;
- y_lr++;
-
- weight = (image_subpixel_size - x_hr) * y_hr;
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
-
- x_lr++;
-
- weight = x_hr * y_hr;
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
-
- fg >>= image_subpixel_shift * 2;
- src_alpha >>= image_subpixel_shift * 2;
- }
- }
-
- span->v = (value_type)fg;
- span->a = (value_type)src_alpha;
- ++span;
- ++base_type::interpolator();
-
- } while(--len);
-
- return base_type::allocator().span();
- }
- };
-
-
-
-
-
-
-
- //========================================span_image_filter_gray_2x2
- template<class ColorT,
- class Interpolator,
- class Allocator = span_allocator<ColorT> >
- class span_image_filter_gray_2x2 :
- public span_image_filter<ColorT, Interpolator, Allocator>
- {
- public:
- typedef ColorT color_type;
- typedef Interpolator interpolator_type;
- typedef Allocator alloc_type;
- typedef span_image_filter<color_type, interpolator_type, alloc_type> base_type;
- typedef typename color_type::value_type value_type;
- typedef typename color_type::calc_type calc_type;
- enum
- {
- base_shift = color_type::base_shift,
- base_mask = color_type::base_mask
- };
-
- //--------------------------------------------------------------------
- span_image_filter_gray_2x2(alloc_type& alloc) : base_type(alloc) {}
-
- //--------------------------------------------------------------------
- span_image_filter_gray_2x2(alloc_type& alloc,
- const rendering_buffer& src,
- const color_type& back_color,
- interpolator_type& inter,
- const image_filter_lut& filter) :
- base_type(alloc, src, back_color, inter, &filter)
- {}
-
- //--------------------------------------------------------------------
- color_type* generate(int x, int y, unsigned len)
- {
- base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
- y + base_type::filter_dy_dbl(), len);
- calc_type fg;
- calc_type src_alpha;
- value_type back_v = base_type::background_color().v;
- value_type back_a = base_type::background_color().a;
-
- const value_type *fg_ptr;
-
- color_type* span = base_type::allocator().span();
- const int16* weight_array = base_type::filter().weight_array() +
- ((base_type::filter().diameter()/2 - 1) <<
- image_subpixel_shift);
-
- int maxx = base_type::source_image().width() - 1;
- int maxy = base_type::source_image().height() - 1;
-
- do
- {
- int x_hr;
- int y_hr;
-
- base_type::interpolator().coordinates(&x_hr, &y_hr);
-
- x_hr -= base_type::filter_dx_int();
- y_hr -= base_type::filter_dy_int();
-
- int x_lr = x_hr >> image_subpixel_shift;
- int y_lr = y_hr >> image_subpixel_shift;
-
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr < maxx && y_lr < maxy)
- {
- fg = image_filter_size / 2;
-
- x_hr &= image_subpixel_mask;
- y_hr &= image_subpixel_mask;
- fg_ptr = (const value_type*)base_type::source_image().row(y_lr) + x_lr;
-
- fg += *fg_ptr++ * ((weight_array[x_hr + image_subpixel_size] *
- weight_array[y_hr + image_subpixel_size] +
- image_filter_size / 2) >>
- image_filter_shift);
- fg += *fg_ptr++ * ((weight_array[x_hr] *
- weight_array[y_hr + image_subpixel_size] +
- image_filter_size / 2) >>
- image_filter_shift);
-
- fg_ptr = (const value_type*)base_type::source_image().next_row(fg_ptr - 2);
-
- fg += *fg_ptr++ * ((weight_array[x_hr + image_subpixel_size] *
- weight_array[y_hr] +
- image_filter_size / 2) >>
- image_filter_shift);
- fg += *fg_ptr++ * ((weight_array[x_hr] *
- weight_array[y_hr] +
- image_filter_size / 2) >>
- image_filter_shift);
-
- fg >>= image_filter_shift;
- if(fg > base_mask) fg = base_mask;
- src_alpha = base_mask;
- }
- else
- {
- unsigned weight;
- if(x_lr < -1 || y_lr < -1 ||
- x_lr > maxx || y_lr > maxy)
- {
- fg = back_v;
- src_alpha = back_a;
- }
- else
- {
- fg = src_alpha = image_filter_size / 2;
-
- x_hr &= image_subpixel_mask;
- y_hr &= image_subpixel_mask;
-
- weight = (weight_array[x_hr + image_subpixel_size] *
- weight_array[y_hr + image_subpixel_size] +
- image_filter_size / 2) >>
- image_filter_shift;
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
-
- x_lr++;
-
- weight = (weight_array[x_hr] *
- weight_array[y_hr + image_subpixel_size] +
- image_filter_size / 2) >>
- image_filter_shift;
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
-
- x_lr--;
- y_lr++;
-
- weight = (weight_array[x_hr + image_subpixel_size] *
- weight_array[y_hr] +
- image_filter_size / 2) >>
- image_filter_shift;
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
-
- x_lr++;
-
- weight = (weight_array[x_hr] *
- weight_array[y_hr] +
- image_filter_size / 2) >>
- image_filter_shift;
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr <= maxx && y_lr <= maxy)
- {
- fg += weight * *((const value_type*)base_type::source_image().row(y_lr) + x_lr);
- src_alpha += weight * base_mask;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
- fg >>= image_filter_shift;
- src_alpha >>= image_filter_shift;
-
- if(src_alpha > base_mask) src_alpha = base_mask;
- if(fg > src_alpha) fg = src_alpha;
-
- }
- }
-
- span->v = (value_type)fg;
- span->a = (value_type)src_alpha;
- ++span;
- ++base_type::interpolator();
-
- } while(--len);
-
- return base_type::allocator().span();
- }
- };
-
-
-
-
-
-
-
-
-
-
-
-
- //================================================span_image_filter_gray
- template<class ColorT,
- class Interpolator,
- class Allocator = span_allocator<ColorT> >
- class span_image_filter_gray :
- public span_image_filter<ColorT, Interpolator, Allocator>
- {
- public:
- typedef ColorT color_type;
- typedef Interpolator interpolator_type;
- typedef Allocator alloc_type;
- typedef span_image_filter<color_type, interpolator_type, alloc_type> base_type;
- typedef typename color_type::value_type value_type;
- typedef typename color_type::calc_type calc_type;
- enum
- {
- base_shift = color_type::base_shift,
- base_mask = color_type::base_mask
- };
-
- //--------------------------------------------------------------------
- span_image_filter_gray(alloc_type& alloc) : base_type(alloc) {}
-
- //--------------------------------------------------------------------
- span_image_filter_gray(alloc_type& alloc,
- const rendering_buffer& src,
- const color_type& back_color,
- interpolator_type& inter,
- const image_filter_lut& filter) :
- base_type(alloc, src, back_color, inter, &filter)
- {}
-
- //--------------------------------------------------------------------
- color_type* generate(int x, int y, unsigned len)
- {
- base_type::interpolator().begin(x + base_type::filter_dx_dbl(),
- y + base_type::filter_dy_dbl(), len);
-
- int fg;
- int src_alpha;
- value_type back_v = base_type::background_color().v;
- value_type back_a = base_type::background_color().a;
-
- const value_type* fg_ptr;
-
- unsigned diameter = base_type::filter().diameter();
- int start = base_type::filter().start();
- int start1 = start - 1;
- const int16* weight_array = base_type::filter().weight_array();
-
- color_type* span = base_type::allocator().span();
-
- int maxx = base_type::source_image().width() + start - 2;
- int maxy = base_type::source_image().height() + start - 2;
-
- int maxx2 = base_type::source_image().width() - start - 1;
- int maxy2 = base_type::source_image().height() - start - 1;
-
- int x_count;
- int weight_y;
-
- do
- {
- base_type::interpolator().coordinates(&x, &y);
-
- x -= base_type::filter_dx_int();
- y -= base_type::filter_dy_int();
-
- int x_hr = x;
- int y_hr = y;
-
- int x_lr = x_hr >> image_subpixel_shift;
- int y_lr = y_hr >> image_subpixel_shift;
-
- fg = image_filter_size / 2;
-
- int x_fract = x_hr & image_subpixel_mask;
- unsigned y_count = diameter;
-
- if(x_lr >= -start && y_lr >= -start &&
- x_lr <= maxx && y_lr <= maxy)
- {
- y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask);
- fg_ptr = (const value_type*)base_type::source_image().row(y_lr + start) + x_lr + start;
- do
- {
- x_count = diameter;
- weight_y = weight_array[y_hr];
- x_hr = image_subpixel_mask - x_fract;
-
- do
- {
- fg += *fg_ptr++ * ((weight_y * weight_array[x_hr] +
- image_filter_size / 2) >>
- image_filter_shift);
- x_hr += image_subpixel_size;
-
- } while(--x_count);
-
- y_hr += image_subpixel_size;
- fg_ptr = (const value_type*)base_type::source_image().next_row(fg_ptr - diameter);
-
- } while(--y_count);
-
- fg >>= image_filter_shift;
-
- if(fg < 0) fg = 0;
- if(fg > base_mask) fg = base_mask;
- src_alpha = base_mask;
- }
- else
- {
- if(x_lr < start1 || y_lr < start1 ||
- x_lr > maxx2 || y_lr > maxy2)
- {
- fg = back_v;
- src_alpha = back_a;
- }
- else
- {
- src_alpha = image_filter_size / 2;
- y_lr = (y >> image_subpixel_shift) + start;
- y_hr = image_subpixel_mask - (y_hr & image_subpixel_mask);
-
- do
- {
- x_count = diameter;
- weight_y = weight_array[y_hr];
- x_lr = (x >> image_subpixel_shift) + start;
- x_hr = image_subpixel_mask - x_fract;
-
- do
- {
- int weight = (weight_y * weight_array[x_hr] +
- image_filter_size / 2) >>
- image_filter_shift;
-
- if(x_lr >= 0 && y_lr >= 0 &&
- x_lr < int(base_type::source_image().width()) &&
- y_lr < int(base_type::source_image().height()))
- {
- fg_ptr = (const value_type*)base_type::source_image().row(y_lr) + x_lr;
- fg += *fg_ptr++ * weight;
- src_alpha += base_mask * weight;
- }
- else
- {
- fg += back_v * weight;
- src_alpha += back_a * weight;
- }
- x_hr += image_subpixel_size;
- x_lr++;
-
- } while(--x_count);
-
- y_hr += image_subpixel_size;
- y_lr++;
-
- } while(--y_count);
-
-
- fg >>= image_filter_shift;
- src_alpha >>= image_filter_shift;
-
- if(fg < 0) fg = 0;
- if(src_alpha < 0) src_alpha = 0;
-
- if(src_alpha > base_mask) src_alpha = base_mask;
- if(fg > src_alpha) fg = src_alpha;
- }
- }
-
- span->v = (value_type)fg;
- span->a = (value_type)src_alpha;
-
- ++span;
- ++base_type::interpolator();
-
- } while(--len);
-
- return base_type::allocator().span();
- }
- };
-
-
-
-}
-
-
-#endif
-
-
-
generated by cgit (git 2.34.1) at 2024-05-29 21:23:57 +0000