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<HTML><HEAD><TITLE>Anti-Grain Geometry - </TITLE>
<META http-equiv="Content-Type" content="text/html"/>
<LINK rel="stylesheet" type="text/css" href="../../agg.styles.css"/>
</HEAD>
<TABLE width="640px" border="0" cellspacing="0" cellpadding="0"><TR><TD><PRE><SPAN class="rem">//----------------------------------------------------------------------------</SPAN>
<SPAN class="rem">// Anti-Grain Geometry (AGG) - Version 2.5</SPAN>
<SPAN class="rem">// A high quality rendering engine for C++</SPAN>
<SPAN class="rem">// Copyright (C) 2002-2006 Maxim Shemanarev</SPAN>
<SPAN class="rem">// Contact: [email protected]</SPAN>
<SPAN class="rem">// [email protected]</SPAN>
<SPAN class="rem">// http://antigrain.com</SPAN>
<SPAN class="rem">// </SPAN>
<SPAN class="rem">// AGG is free software; you can redistribute it and/or</SPAN>
<SPAN class="rem">// modify it under the terms of the GNU General Public License</SPAN>
<SPAN class="rem">// as published by the Free Software Foundation; either version 2</SPAN>
<SPAN class="rem">// of the License, or (at your option) any later version.</SPAN>
<SPAN class="rem">// </SPAN>
<SPAN class="rem">// AGG is distributed in the hope that it will be useful,</SPAN>
<SPAN class="rem">// but WITHOUT ANY WARRANTY; without even the implied warranty of</SPAN>
<SPAN class="rem">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</SPAN>
<SPAN class="rem">// GNU General Public License for more details.</SPAN>
<SPAN class="rem">// </SPAN>
<SPAN class="rem">// You should have received a copy of the GNU General Public License</SPAN>
<SPAN class="rem">// along with AGG; if not, write to the Free Software</SPAN>
<SPAN class="rem">// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, </SPAN>
<SPAN class="rem">// MA 02110-1301, USA.</SPAN>
<SPAN class="rem">//----------------------------------------------------------------------------</SPAN>
<SPAN class="rem">//</SPAN>
<SPAN class="rem">// Adaptation for high precision colors has been sponsored by </SPAN>
<SPAN class="rem">// Liberty Technology Systems, Inc., visit http://lib-sys.com</SPAN>
<SPAN class="rem">//</SPAN>
<SPAN class="rem">// Liberty Technology Systems, Inc. is the provider of</SPAN>
<SPAN class="rem">// PostScript and PDF technology for software developers.</SPAN>
<SPAN class="rem">// </SPAN>
<SPAN class="rem">//----------------------------------------------------------------------------</SPAN>
<SPAN class="kw2">#ifndef</SPAN> AGG_PIXFMT_RGBA_INCLUDED
<SPAN class="kw2">#define</SPAN> AGG_PIXFMT_RGBA_INCLUDED
<SPAN class="kw2">#include</SPAN> <SPAN class="op"><</SPAN>string<SPAN class="op">.</SPAN>h<SPAN class="op">></SPAN>
<SPAN class="kw2">#include</SPAN> <SPAN class="op"><</SPAN>math<SPAN class="op">.</SPAN>h<SPAN class="op">></SPAN>
<SPAN class="kw2">#include</SPAN> <SPAN class="str">"<A href="agg_basics.h.html">agg_basics.h</A>"</SPAN>
<SPAN class="kw2">#include</SPAN> <SPAN class="str">"<A href="agg_color_rgba.h.html">agg_color_rgba.h</A>"</SPAN>
<SPAN class="kw2">#include</SPAN> <SPAN class="str">"<A href="agg_rendering_buffer.h.html">agg_rendering_buffer.h</A>"</SPAN>
<SPAN class="kw1">namespace</SPAN> agg
<SPAN class="op">{</SPAN>
<SPAN class="rem">//=========================================================<A name="multiplier_rgba"><B></B></A><A href="agg_pixfmt_rgba.h.html#multiplier_rgba">multiplier_rgba</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#multiplier_rgba">multiplier_rgba</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> ColorT::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> ColorT::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="rem">//--------------------------------------------------------------------</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> premultiply<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type a <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>a <SPAN class="op"><</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>a <SPAN class="op">==</SPAN> <SPAN class="num">0</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="num">0</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">return</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> value_type<SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> a <SPAN class="op">+</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> ColorT::base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> value_type<SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> a <SPAN class="op">+</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> ColorT::base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> value_type<SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> a <SPAN class="op">+</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> ColorT::base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="rem">//--------------------------------------------------------------------</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> demultiply<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type a <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>a <SPAN class="op"><</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>a <SPAN class="op">==</SPAN> <SPAN class="num">0</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="num">0</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">return</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
calc_type r <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>calc_type<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> <SPAN class="op">/</SPAN> a<SPAN class="op">;</SPAN>
calc_type g <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>calc_type<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> <SPAN class="op">/</SPAN> a<SPAN class="op">;</SPAN>
calc_type b <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>calc_type<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> <SPAN class="op">/</SPAN> a<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> value_type<SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>r <SPAN class="op">></SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> ? ColorT::base_mask : r<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> value_type<SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>g <SPAN class="op">></SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> ? ColorT::base_mask : g<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> value_type<SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>b <SPAN class="op">></SPAN> ColorT::base_mask<SPAN class="op">)</SPAN> ? ColorT::base_mask : b<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="apply_gamma_dir_rgba"><B></B></A><A href="agg_pixfmt_rgba.h.html#apply_gamma_dir_rgba">apply_gamma_dir_rgba</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> GammaLut<SPAN class="op">></SPAN> <SPAN class="kw1">class</SPAN> <A href="agg_pixfmt_rgba.h.html#apply_gamma_dir_rgba">apply_gamma_dir_rgba</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">public</SPAN>:
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> ColorT::value_type value_type<SPAN class="op">;</SPAN>
<A href="agg_pixfmt_rgba.h.html#apply_gamma_dir_rgba">apply_gamma_dir_rgba</A><SPAN class="op">(</SPAN><SPAN class="kw1">const</SPAN> GammaLut<SPAN class="op">&</SPAN> gamma<SPAN class="op">)</SPAN> : m_gamma<SPAN class="op">(</SPAN>gamma<SPAN class="op">)</SPAN> <SPAN class="op">{</SPAN><SPAN class="op">}</SPAN>
AGG_INLINE <SPAN class="kw1">void</SPAN> <SPAN class="kw1">operator</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> m_gamma<SPAN class="op">.</SPAN>dir<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> m_gamma<SPAN class="op">.</SPAN>dir<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> m_gamma<SPAN class="op">.</SPAN>dir<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">private</SPAN>:
<SPAN class="kw1">const</SPAN> GammaLut<SPAN class="op">&</SPAN> m_gamma<SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="apply_gamma_inv_rgba"><B></B></A><A href="agg_pixfmt_rgba.h.html#apply_gamma_inv_rgba">apply_gamma_inv_rgba</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> GammaLut<SPAN class="op">></SPAN> <SPAN class="kw1">class</SPAN> <A href="agg_pixfmt_rgba.h.html#apply_gamma_inv_rgba">apply_gamma_inv_rgba</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">public</SPAN>:
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> ColorT::value_type value_type<SPAN class="op">;</SPAN>
<A href="agg_pixfmt_rgba.h.html#apply_gamma_inv_rgba">apply_gamma_inv_rgba</A><SPAN class="op">(</SPAN><SPAN class="kw1">const</SPAN> GammaLut<SPAN class="op">&</SPAN> gamma<SPAN class="op">)</SPAN> : m_gamma<SPAN class="op">(</SPAN>gamma<SPAN class="op">)</SPAN> <SPAN class="op">{</SPAN><SPAN class="op">}</SPAN>
AGG_INLINE <SPAN class="kw1">void</SPAN> <SPAN class="kw1">operator</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> m_gamma<SPAN class="op">.</SPAN>inv<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> m_gamma<SPAN class="op">.</SPAN>inv<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> m_gamma<SPAN class="op">.</SPAN>inv<SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">private</SPAN>:
<SPAN class="kw1">const</SPAN> GammaLut<SPAN class="op">&</SPAN> m_gamma<SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=============================================================<A name="blender_rgba"><B></B></A><A href="agg_pixfmt_rgba.h.html#blender_rgba">blender_rgba</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#blender_rgba">blender_rgba</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//--------------------------------------------------------------------</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">=</SPAN><SPAN class="num">0</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type r <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type g <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type b <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type a <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>cr <SPAN class="op">-</SPAN> r<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN>r <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>cg <SPAN class="op">-</SPAN> g<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN>g <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>cb <SPAN class="op">-</SPAN> b<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN>b <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>alpha <SPAN class="op">+</SPAN> a<SPAN class="op">)</SPAN> <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>alpha <SPAN class="op">*</SPAN> a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=========================================================<A name="blender_rgba_pre"><B></B></A><A href="agg_pixfmt_rgba.h.html#blender_rgba_pre">blender_rgba_pre</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#blender_rgba_pre">blender_rgba_pre</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//--------------------------------------------------------------------</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
alpha <SPAN class="op">=</SPAN> color_type::base_mask <SPAN class="op">-</SPAN> alpha<SPAN class="op">;</SPAN>
cover <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>cover <SPAN class="op">+</SPAN> <SPAN class="num">1</SPAN><SPAN class="op">)</SPAN> <SPAN class="op"><<</SPAN> <SPAN class="op">(</SPAN>base_shift <SPAN class="op">-</SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> cr <SPAN class="op">*</SPAN> cover<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> cg <SPAN class="op">*</SPAN> cover<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> cb <SPAN class="op">*</SPAN> cover<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>base_mask <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>alpha <SPAN class="op">*</SPAN> <SPAN class="op">(</SPAN>base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="rem">//--------------------------------------------------------------------</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
alpha <SPAN class="op">=</SPAN> color_type::base_mask <SPAN class="op">-</SPAN> alpha<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> cr<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> cg<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> cb<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>base_mask <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>alpha <SPAN class="op">*</SPAN> <SPAN class="op">(</SPAN>base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//======================================================<A name="blender_rgba_plain"><B></B></A><A href="agg_pixfmt_rgba.h.html#blender_rgba_plain">blender_rgba_plain</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#blender_rgba_plain">blender_rgba_plain</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e <SPAN class="op">{</SPAN> base_shift <SPAN class="op">=</SPAN> color_type::base_shift <SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//--------------------------------------------------------------------</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">=</SPAN><SPAN class="num">0</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>alpha <SPAN class="op">==</SPAN> <SPAN class="num">0</SPAN><SPAN class="op">)</SPAN> <SPAN class="kw1">return</SPAN><SPAN class="op">;</SPAN>
calc_type a <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type r <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> a<SPAN class="op">;</SPAN>
calc_type g <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> a<SPAN class="op">;</SPAN>
calc_type b <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> a<SPAN class="op">;</SPAN>
a <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>alpha <SPAN class="op">+</SPAN> a<SPAN class="op">)</SPAN> <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">-</SPAN> alpha <SPAN class="op">*</SPAN> a<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>a <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>cr <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">-</SPAN> r<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN>r <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">/</SPAN> a<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>cg <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">-</SPAN> g<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN>g <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">/</SPAN> a<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>cb <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">-</SPAN> b<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN>b <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">/</SPAN> a<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=========================================================<A name="comp_op_rgba_clear"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_clear">comp_op_rgba_clear</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_clear">comp_op_rgba_clear</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
cover <SPAN class="op">=</SPAN> <SPAN class="num">255</SPAN> <SPAN class="op">-</SPAN> cover<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">else</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN><SPAN class="num">0</SPAN><SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN><SPAN class="num">1</SPAN><SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN><SPAN class="num">2</SPAN><SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN><SPAN class="num">3</SPAN><SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="num">0</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//===========================================================<A name="comp_op_rgba_src"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src">comp_op_rgba_src</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src">comp_op_rgba_src</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha <SPAN class="op">=</SPAN> <SPAN class="num">255</SPAN> <SPAN class="op">-</SPAN> cover<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">else</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> sr<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> sg<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> sb<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> sa<SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//===========================================================<A name="comp_op_rgba_dst"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst">comp_op_rgba_dst</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst">comp_op_rgba_dst</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN><SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//======================================================<A name="comp_op_rgba_src_over"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_over">comp_op_rgba_src_over</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_over">comp_op_rgba_src_over</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
calc_type s1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//======================================================<A name="comp_op_rgba_dst_over"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_over">comp_op_rgba_dst_over</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_over">comp_op_rgba_dst_over</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Dca + Sca.(1 - Da)</SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
calc_type d1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//======================================================<A name="comp_op_rgba_src_in"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_in">comp_op_rgba_src_in</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_in">comp_op_rgba_src_in</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca.Da</SPAN>
<SPAN class="rem">// Da' = Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha <SPAN class="op">=</SPAN> <SPAN class="num">255</SPAN> <SPAN class="op">-</SPAN> cover<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">else</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//======================================================<A name="comp_op_rgba_dst_in"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_in">comp_op_rgba_dst_in</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_in">comp_op_rgba_dst_in</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Dca.Sa</SPAN>
<SPAN class="rem">// Da' = Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sa <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op">*</SPAN> <SPAN class="op">(</SPAN>base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//======================================================<A name="comp_op_rgba_src_out"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_out">comp_op_rgba_src_out</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_out">comp_op_rgba_src_out</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca.(1 - Da)</SPAN>
<SPAN class="rem">// Da' = Sa.(1 - Da) </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type da <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha <SPAN class="op">=</SPAN> <SPAN class="num">255</SPAN> <SPAN class="op">-</SPAN> cover<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">else</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//======================================================<A name="comp_op_rgba_dst_out"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_out">comp_op_rgba_dst_out</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_out">comp_op_rgba_dst_out</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Dca.(1 - Sa) </SPAN>
<SPAN class="rem">// Da' = Da.(1 - Sa) </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN><SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
sa <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_src_atop"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_atop">comp_op_rgba_src_atop</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_src_atop">comp_op_rgba_src_atop</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca.Da + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// Da' = Da</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_dst_atop"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_atop">comp_op_rgba_dst_atop</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_dst_atop">comp_op_rgba_dst_atop</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Dca.Sa + Sca.(1 - Da)</SPAN>
<SPAN class="rem">// Da' = Sa </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type da <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">unsigned</SPAN> alpha <SPAN class="op">=</SPAN> <SPAN class="num">255</SPAN> <SPAN class="op">-</SPAN> cover<SPAN class="op">;</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> sr <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> sg <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> sb <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> alpha <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">else</SPAN>
<SPAN class="op">{</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> sr <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> sg <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> sa <SPAN class="op">+</SPAN> sb <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN>sa<SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=========================================================<A name="comp_op_rgba_xor"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_xor">comp_op_rgba_xor</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_xor">comp_op_rgba_xor</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// Da' = Sa + Da - 2.Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type s1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
calc_type d1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> sr <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> sg <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> sb <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> base_mask<SPAN class="op">/</SPAN><SPAN class="num">2</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="op">(</SPAN>base_shift <SPAN class="op">-</SPAN> <SPAN class="num">1</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=========================================================<A name="comp_op_rgba_plus"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_plus">comp_op_rgba_plus</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_plus">comp_op_rgba_plus</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca + Dca</SPAN>
<SPAN class="rem">// Da' = Sa + Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> sr<SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> sg<SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> sb<SPAN class="op">;</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> sa<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>dr <SPAN class="op">></SPAN> base_mask<SPAN class="op">)</SPAN> ? <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN>base_mask : dr<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>dg <SPAN class="op">></SPAN> base_mask<SPAN class="op">)</SPAN> ? <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN>base_mask : dg<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>db <SPAN class="op">></SPAN> base_mask<SPAN class="op">)</SPAN> ? <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN>base_mask : db<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>da <SPAN class="op">></SPAN> base_mask<SPAN class="op">)</SPAN> ? <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN>base_mask : da<SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//========================================================<A name="comp_op_rgba_minus"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_minus">comp_op_rgba_minus</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_minus">comp_op_rgba_minus</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Dca - Sca</SPAN>
<SPAN class="rem">// Da' = 1 - (1 - Sa).(1 - Da)</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> sr<SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> sg<SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> sb<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>dr <SPAN class="op">></SPAN> base_mask<SPAN class="op">)</SPAN> ? <SPAN class="num">0</SPAN> : dr<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>dg <SPAN class="op">></SPAN> base_mask<SPAN class="op">)</SPAN> ? <SPAN class="num">0</SPAN> : dg<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>db <SPAN class="op">></SPAN> base_mask<SPAN class="op">)</SPAN> ? <SPAN class="num">0</SPAN> : db<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//p[Order::A] = (value_type)(base_mask - (((base_mask - sa) * (base_mask - p[Order::A]) + base_mask) >> base_shift));</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_multiply"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_multiply">comp_op_rgba_multiply</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_multiply">comp_op_rgba_multiply</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type s1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
calc_type d1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> dr <SPAN class="op">+</SPAN> sr <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dr <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> dg <SPAN class="op">+</SPAN> sg <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dg <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> db <SPAN class="op">+</SPAN> sb <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> db <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_screen"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_screen">comp_op_rgba_screen</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_screen">comp_op_rgba_screen</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = Sca + Dca - Sca.Dca</SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">+</SPAN> dr <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> dr <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">+</SPAN> dg <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> dg <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">+</SPAN> db <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> db <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> da <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_overlay"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_overlay">comp_op_rgba_overlay</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_overlay">comp_op_rgba_overlay</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// if 2.Dca < Da</SPAN>
<SPAN class="rem">// Dca' = 2.Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// otherwise</SPAN>
<SPAN class="rem">// Dca' = Sa.Da - 2.(Da - Dca).(Sa - Sca) + Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// </SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da</SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type d1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type s1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type sada <SPAN class="op">=</SPAN> sa <SPAN class="op">*</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="num">2</SPAN><SPAN class="op">*</SPAN>dr <SPAN class="op"><</SPAN> da<SPAN class="op">)</SPAN> ?
<SPAN class="num">2</SPAN><SPAN class="op">*</SPAN>sr<SPAN class="op">*</SPAN>dr <SPAN class="op">+</SPAN> sr<SPAN class="op">*</SPAN>d1a <SPAN class="op">+</SPAN> dr<SPAN class="op">*</SPAN>s1a :
sada <SPAN class="op">-</SPAN> <SPAN class="num">2</SPAN><SPAN class="op">*</SPAN><SPAN class="op">(</SPAN>da <SPAN class="op">-</SPAN> dr<SPAN class="op">)</SPAN><SPAN class="op">*</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">-</SPAN> sr<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sr<SPAN class="op">*</SPAN>d1a <SPAN class="op">+</SPAN> dr<SPAN class="op">*</SPAN>s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="num">2</SPAN><SPAN class="op">*</SPAN>dg <SPAN class="op"><</SPAN> da<SPAN class="op">)</SPAN> ?
<SPAN class="num">2</SPAN><SPAN class="op">*</SPAN>sg<SPAN class="op">*</SPAN>dg <SPAN class="op">+</SPAN> sg<SPAN class="op">*</SPAN>d1a <SPAN class="op">+</SPAN> dg<SPAN class="op">*</SPAN>s1a :
sada <SPAN class="op">-</SPAN> <SPAN class="num">2</SPAN><SPAN class="op">*</SPAN><SPAN class="op">(</SPAN>da <SPAN class="op">-</SPAN> dg<SPAN class="op">)</SPAN><SPAN class="op">*</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">-</SPAN> sg<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sg<SPAN class="op">*</SPAN>d1a <SPAN class="op">+</SPAN> dg<SPAN class="op">*</SPAN>s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN><SPAN class="num">2</SPAN><SPAN class="op">*</SPAN>db <SPAN class="op"><</SPAN> da<SPAN class="op">)</SPAN> ?
<SPAN class="num">2</SPAN><SPAN class="op">*</SPAN>sb<SPAN class="op">*</SPAN>db <SPAN class="op">+</SPAN> sb<SPAN class="op">*</SPAN>d1a <SPAN class="op">+</SPAN> db<SPAN class="op">*</SPAN>s1a :
sada <SPAN class="op">-</SPAN> <SPAN class="num">2</SPAN><SPAN class="op">*</SPAN><SPAN class="op">(</SPAN>da <SPAN class="op">-</SPAN> db<SPAN class="op">)</SPAN><SPAN class="op">*</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">-</SPAN> sb<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sb<SPAN class="op">*</SPAN>d1a <SPAN class="op">+</SPAN> db<SPAN class="op">*</SPAN>s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> da <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> T<SPAN class="op">></SPAN> <SPAN class="kw1">inline</SPAN> T sd_min<SPAN class="op">(</SPAN>T a<SPAN class="op">,</SPAN> T b<SPAN class="op">)</SPAN> <SPAN class="op">{</SPAN> <SPAN class="kw1">return</SPAN> <SPAN class="op">(</SPAN>a <SPAN class="op"><</SPAN> b<SPAN class="op">)</SPAN> ? a : b<SPAN class="op">;</SPAN> <SPAN class="op">}</SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> T<SPAN class="op">></SPAN> <SPAN class="kw1">inline</SPAN> T sd_max<SPAN class="op">(</SPAN>T a<SPAN class="op">,</SPAN> T b<SPAN class="op">)</SPAN> <SPAN class="op">{</SPAN> <SPAN class="kw1">return</SPAN> <SPAN class="op">(</SPAN>a <SPAN class="op">></SPAN> b<SPAN class="op">)</SPAN> ? a : b<SPAN class="op">;</SPAN> <SPAN class="op">}</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_darken"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_darken">comp_op_rgba_darken</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_darken">comp_op_rgba_darken</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = min(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type d1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type s1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sd_min<SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> da<SPAN class="op">,</SPAN> dr <SPAN class="op">*</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sr <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dr <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sd_min<SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> da<SPAN class="op">,</SPAN> dg <SPAN class="op">*</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sg <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dg <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sd_min<SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> da<SPAN class="op">,</SPAN> db <SPAN class="op">*</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sb <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> db <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> da <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_lighten"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_lighten">comp_op_rgba_lighten</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_lighten">comp_op_rgba_lighten</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// Dca' = max(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type d1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type s1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sd_max<SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> da<SPAN class="op">,</SPAN> dr <SPAN class="op">*</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sr <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dr <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sd_max<SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> da<SPAN class="op">,</SPAN> dg <SPAN class="op">*</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sg <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dg <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sd_max<SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> da<SPAN class="op">,</SPAN> db <SPAN class="op">*</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> sb <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> db <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">+</SPAN> da <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> da <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">//=====================================================<A name="comp_op_rgba_color_dodge"><B></B></A><A href="agg_pixfmt_rgba.h.html#comp_op_rgba_color_dodge">comp_op_rgba_color_dodge</A></SPAN>
<SPAN class="kw1">template</SPAN><SPAN class="op"><</SPAN><SPAN class="kw1">class</SPAN> ColorT<SPAN class="op">,</SPAN> <SPAN class="kw1">class</SPAN> Order<SPAN class="op">></SPAN> <SPAN class="kw1">struct</SPAN> <A href="agg_pixfmt_rgba.h.html#comp_op_rgba_color_dodge">comp_op_rgba_color_dodge</A>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">typedef</SPAN> ColorT color_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> Order order_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::value_type value_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::calc_type calc_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">typedef</SPAN> <SPAN class="kw1">typename</SPAN> color_type::long_type long_type<SPAN class="op">;</SPAN>
<SPAN class="kw1">enum</SPAN> base_scale_e
<SPAN class="op">{</SPAN>
base_shift <SPAN class="op">=</SPAN> color_type::base_shift<SPAN class="op">,</SPAN>
base_mask <SPAN class="op">=</SPAN> color_type::base_mask
<SPAN class="op">}</SPAN><SPAN class="op">;</SPAN>
<SPAN class="rem">// if Sca.Da + Dca.Sa >= Sa.Da</SPAN>
<SPAN class="rem">// Dca' = Sa.Da + Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">// otherwise</SPAN>
<SPAN class="rem">// Dca' = Dca.Sa/(1-Sca/Sa) + Sca.(1 - Da) + Dca.(1 - Sa)</SPAN>
<SPAN class="rem">//</SPAN>
<SPAN class="rem">// Da' = Sa + Da - Sa.Da </SPAN>
<SPAN class="kw1">static</SPAN> AGG_INLINE <SPAN class="kw1">void</SPAN> blend_pix<SPAN class="op">(</SPAN>value_type<SPAN class="op">*</SPAN> p<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sr<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sg<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> sb<SPAN class="op">,</SPAN>
<SPAN class="kw1">unsigned</SPAN> sa<SPAN class="op">,</SPAN> <SPAN class="kw1">unsigned</SPAN> cover<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>cover <SPAN class="op"><</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
sr <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sg <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sg <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sb <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sb <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
sa <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>sa <SPAN class="op">*</SPAN> cover <SPAN class="op">+</SPAN> <SPAN class="num">255</SPAN><SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> <SPAN class="num">8</SPAN><SPAN class="op">;</SPAN>
<SPAN class="op">}</SPAN>
<SPAN class="kw1">if</SPAN><SPAN class="op">(</SPAN>sa<SPAN class="op">)</SPAN>
<SPAN class="op">{</SPAN>
calc_type d1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type s1a <SPAN class="op">=</SPAN> base_mask <SPAN class="op">-</SPAN> sa<SPAN class="op">;</SPAN>
calc_type dr <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type dg <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::G<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type db <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::B<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
calc_type da <SPAN class="op">=</SPAN> p<SPAN class="op">[</SPAN>Order::A<SPAN class="op">]</SPAN><SPAN class="op">;</SPAN>
long_type drsa <SPAN class="op">=</SPAN> dr <SPAN class="op">*</SPAN> sa<SPAN class="op">;</SPAN>
long_type dgsa <SPAN class="op">=</SPAN> dg <SPAN class="op">*</SPAN> sa<SPAN class="op">;</SPAN>
long_type dbsa <SPAN class="op">=</SPAN> db <SPAN class="op">*</SPAN> sa<SPAN class="op">;</SPAN>
long_type srda <SPAN class="op">=</SPAN> sr <SPAN class="op">*</SPAN> da<SPAN class="op">;</SPAN>
long_type sgda <SPAN class="op">=</SPAN> sg <SPAN class="op">*</SPAN> da<SPAN class="op">;</SPAN>
long_type sbda <SPAN class="op">=</SPAN> sb <SPAN class="op">*</SPAN> da<SPAN class="op">;</SPAN>
long_type sada <SPAN class="op">=</SPAN> sa <SPAN class="op">*</SPAN> da<SPAN class="op">;</SPAN>
p<SPAN class="op">[</SPAN>Order::R<SPAN class="op">]</SPAN> <SPAN class="op">=</SPAN> <SPAN class="op">(</SPAN>value_type<SPAN class="op">)</SPAN><SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>srda <SPAN class="op">+</SPAN> drsa <SPAN class="op">>=</SPAN> sada<SPAN class="op">)</SPAN> ?
<SPAN class="op">(</SPAN>sada <SPAN class="op">+</SPAN> sr <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dr <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift :
drsa <SPAN class="op">/</SPAN> <SPAN class="op">(</SPAN>base_mask <SPAN class="op">-</SPAN> <SPAN class="op">(</SPAN>sr <SPAN class="op"><<</SPAN> base_shift<SPAN class="op">)</SPAN> <SPAN class="op">/</SPAN> sa<SPAN class="op">)</SPAN> <SPAN class="op">+</SPAN> <SPAN class="op">(</SPAN><SPAN class="op">(</SPAN>sr <SPAN class="op">*</SPAN> d1a <SPAN class="op">+</SPAN> dr <SPAN class="op">*</SPAN> s1a <SPAN class="op">+</SPAN> base_mask<SPAN class="op">)</SPAN> <SPAN class="op">>></SPAN> base_shift<SPAN class="op">)</SPAN><SPAN class="op">)</SPAN><SPAN class="op">;</SPAN>