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Diffstat (limited to 'agg/inc/agg_span_image_resample_rgb.h')
| -rwxr-xr-x | agg/inc/agg_span_image_resample_rgb.h | 393 |
1 files changed, 0 insertions, 393 deletions
diff --git a/agg/inc/agg_span_image_resample_rgb.h b/agg/inc/agg_span_image_resample_rgb.h deleted file mode 100755 index de25dd4b382b..000000000000 --- a/agg/inc/agg_span_image_resample_rgb.h +++ /dev/null @@ -1,393 +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_IMAGE_RESAMPLE_RGB_INCLUDED -#define AGG_SPAN_IMAGE_RESAMPLE_RGB_INCLUDED - -#include "agg_color_rgba.h" -#include "agg_span_image_resample.h" - -namespace agg -{ - - //=========================================span_image_resample_rgb_affine - template<class ColorT, - class Order, - class Allocator = span_allocator<ColorT> > - class span_image_resample_rgb_affine : - public span_image_resample_affine<ColorT, Allocator> - { - public: - typedef ColorT color_type; - typedef Order order_type; - typedef Allocator alloc_type; - typedef span_image_resample_affine<color_type, alloc_type> base_type; - typedef typename base_type::interpolator_type interpolator_type; - typedef typename color_type::value_type value_type; - typedef typename color_type::long_type long_type; - enum - { - base_shift = color_type::base_shift, - base_mask = color_type::base_mask, - downscale_shift = image_filter_shift - }; - - //-------------------------------------------------------------------- - span_image_resample_rgb_affine(alloc_type& alloc) : base_type(alloc) {} - - //-------------------------------------------------------------------- - span_image_resample_rgb_affine(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); - - long_type fg[4]; - value_type back_r = base_type::background_color().r; - value_type back_g = base_type::background_color().g; - value_type back_b = base_type::background_color().b; - value_type back_a = base_type::background_color().a; - - color_type* span = base_type::allocator().span(); - - int diameter = base_type::filter().diameter(); - int filter_size = diameter << image_subpixel_shift; - int radius_x = (diameter * base_type::m_rx) >> 1; - int radius_y = (diameter * base_type::m_ry) >> 1; - int maxx = base_type::source_image().width() - 1; - int maxy = base_type::source_image().height() - 1; - - const int16* weight_array = base_type::filter().weight_array(); - - do - { - base_type::interpolator().coordinates(&x, &y); - - x += base_type::filter_dx_int() - radius_x; - y += base_type::filter_dy_int() - radius_y; - - fg[0] = fg[1] = fg[2] = fg[3] = image_filter_size / 2; - - int y_lr = y >> image_subpixel_shift; - int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) * - base_type::m_ry_inv) >> - image_subpixel_shift; - int total_weight = 0; - int x_lr_ini = x >> image_subpixel_shift; - int x_hr_ini = ((image_subpixel_mask - (x & image_subpixel_mask)) * - base_type::m_rx_inv) >> - image_subpixel_shift; - do - { - int weight_y = weight_array[y_hr]; - int x_lr = x_lr_ini; - int x_hr = x_hr_ini; - if(y_lr >= 0 && y_lr <= maxy) - { - const value_type* fg_ptr = (const value_type*) - base_type::source_image().row(y_lr) + x_lr * 3; - do - { - int weight = (weight_y * weight_array[x_hr] + - image_filter_size / 2) >> - downscale_shift; - - if(x_lr >= 0 && x_lr <= maxx) - { - fg[0] += fg_ptr[0] * weight; - fg[1] += fg_ptr[1] * weight; - fg[2] += fg_ptr[2] * weight; - fg[3] += base_mask * weight; - } - else - { - fg[order_type::R] += back_r * weight; - fg[order_type::G] += back_g * weight; - fg[order_type::B] += back_b * weight; - fg[3] += back_a * weight; - } - total_weight += weight; - fg_ptr += 3; - x_hr += base_type::m_rx_inv; - ++x_lr; - } - while(x_hr < filter_size); - } - else - { - do - { - int weight = (weight_y * weight_array[x_hr] + - image_filter_size / 2) >> - downscale_shift; - - total_weight += weight; - fg[order_type::R] += back_r * weight; - fg[order_type::G] += back_g * weight; - fg[order_type::B] += back_b * weight; - fg[3] += back_a * weight; - x_hr += base_type::m_rx_inv; - } - while(x_hr < filter_size); - } - y_hr += base_type::m_ry_inv; - ++y_lr; - } - while(y_hr < filter_size); - - fg[0] /= total_weight; - fg[1] /= total_weight; - fg[2] /= total_weight; - fg[3] /= total_weight; - - if(fg[0] < 0) fg[0] = 0; - if(fg[1] < 0) fg[1] = 0; - if(fg[2] < 0) fg[2] = 0; - if(fg[3] < 0) fg[3] = 0; - - if(fg[3] > base_mask) fg[3] = base_mask; - if(fg[0] > fg[3]) fg[0] = fg[3]; - if(fg[1] > fg[3]) fg[1] = fg[3]; - if(fg[2] > fg[3]) fg[2] = fg[3]; - - span->r = (value_type)fg[order_type::R]; - span->g = (value_type)fg[order_type::G]; - span->b = (value_type)fg[order_type::B]; - span->a = (value_type)fg[3]; - - ++span; - ++base_type::interpolator(); - } while(--len); - return base_type::allocator().span(); - } - }; - - - - - - - - //===============================================span_image_resample_rgb - template<class ColorT, - class Order, - class Interpolator, - class Allocator = span_allocator<ColorT> > - class span_image_resample_rgb : - public span_image_resample<ColorT, Interpolator, Allocator> - { - public: - typedef ColorT color_type; - typedef Order order_type; - typedef Interpolator interpolator_type; - typedef Allocator alloc_type; - typedef span_image_resample<color_type, interpolator_type, alloc_type> base_type; - typedef typename color_type::value_type value_type; - typedef typename color_type::long_type long_type; - enum - { - base_shift = color_type::base_shift, - base_mask = color_type::base_mask, - downscale_shift = image_filter_shift - }; - - //-------------------------------------------------------------------- - span_image_resample_rgb(alloc_type& alloc) : - base_type(alloc) - {} - - //-------------------------------------------------------------------- - span_image_resample_rgb(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) - { - color_type* span = base_type::allocator().span(); - base_type::interpolator().begin(x + base_type::filter_dx_dbl(), - y + base_type::filter_dy_dbl(), len); - long_type fg[4]; - value_type back_r = base_type::background_color().r; - value_type back_g = base_type::background_color().g; - value_type back_b = base_type::background_color().b; - value_type back_a = base_type::background_color().a; - - int diameter = base_type::filter().diameter(); - int filter_size = diameter << image_subpixel_shift; - - const int16* weight_array = base_type::filter().weight_array(); - - do - { - int rx; - int ry; - int rx_inv = image_subpixel_size; - int ry_inv = image_subpixel_size; - base_type::interpolator().coordinates(&x, &y); - base_type::interpolator().local_scale(&rx, &ry); - - rx = (rx * base_type::m_blur_x) >> image_subpixel_shift; - ry = (ry * base_type::m_blur_y) >> image_subpixel_shift; - - if(rx < image_subpixel_size) - { - rx = image_subpixel_size; - } - else - { - if(rx > image_subpixel_size * base_type::m_scale_limit) - { - rx = image_subpixel_size * base_type::m_scale_limit; - } - rx_inv = image_subpixel_size * image_subpixel_size / rx; - } - - if(ry < image_subpixel_size) - { - ry = image_subpixel_size; - } - else - { - if(ry > image_subpixel_size * base_type::m_scale_limit) - { - ry = image_subpixel_size * base_type::m_scale_limit; - } - ry_inv = image_subpixel_size * image_subpixel_size / ry; - } - - int radius_x = (diameter * rx) >> 1; - int radius_y = (diameter * ry) >> 1; - int maxx = base_type::source_image().width() - 1; - int maxy = base_type::source_image().height() - 1; - - x += base_type::filter_dx_int() - radius_x; - y += base_type::filter_dy_int() - radius_y; - - fg[0] = fg[1] = fg[2] = fg[3] = image_filter_size / 2; - - int y_lr = y >> image_subpixel_shift; - int y_hr = ((image_subpixel_mask - (y & image_subpixel_mask)) * - ry_inv) >> - image_subpixel_shift; - int total_weight = 0; - int x_lr_ini = x >> image_subpixel_shift; - int x_hr_ini = ((image_subpixel_mask - (x & image_subpixel_mask)) * - rx_inv) >> - image_subpixel_shift; - - do - { - int weight_y = weight_array[y_hr]; - int x_lr = x_lr_ini; - int x_hr = x_hr_ini; - if(y_lr >= 0 && y_lr <= maxy) - { - const value_type* fg_ptr = (const value_type*) - base_type::source_image().row(y_lr) + x_lr * 3; - do - { - int weight = (weight_y * weight_array[x_hr] + - image_filter_size / 2) >> - downscale_shift; - - if(x_lr >= 0 && x_lr <= maxx) - { - fg[0] += fg_ptr[0] * weight; - fg[1] += fg_ptr[1] * weight; - fg[2] += fg_ptr[2] * weight; - fg[3] += base_mask * weight; - } - else - { - fg[order_type::R] += back_r * weight; - fg[order_type::G] += back_g * weight; - fg[order_type::B] += back_b * weight; - fg[3] += back_a * weight; - } - total_weight += weight; - fg_ptr += 3; - x_hr += rx_inv; - ++x_lr; - } - while(x_hr < filter_size); - } - else - { - do - { - int weight = (weight_y * weight_array[x_hr] + - image_filter_size / 2) >> - downscale_shift; - - total_weight += weight; - fg[order_type::R] += back_r * weight; - fg[order_type::G] += back_g * weight; - fg[order_type::B] += back_b * weight; - fg[3] += back_a * weight; - x_hr += rx_inv; - } - while(x_hr < filter_size); - } - y_hr += ry_inv; - ++y_lr; - } - while(y_hr < filter_size); - - fg[0] /= total_weight; - fg[1] /= total_weight; - fg[2] /= total_weight; - fg[3] /= total_weight; - - if(fg[0] < 0) fg[0] = 0; - if(fg[1] < 0) fg[1] = 0; - if(fg[2] < 0) fg[2] = 0; - if(fg[3] < 0) fg[3] = 0; - - if(fg[3] > base_mask) fg[3] = base_mask; - if(fg[0] > fg[3]) fg[0] = fg[3]; - if(fg[1] > fg[3]) fg[1] = fg[3]; - if(fg[2] > fg[3]) fg[2] = fg[3]; - - span->r = (value_type)fg[order_type::R]; - span->g = (value_type)fg[order_type::G]; - span->b = (value_type)fg[order_type::B]; - span->a = (value_type)fg[3]; - - ++span; - ++base_type::interpolator(); - } while(--len); - return base_type::allocator().span(); - } - - }; - -} - - -#endif |