2775 lines
111 KiB
C++
2775 lines
111 KiB
C++
//----------------------------------------------------------------------------
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// Anti-Grain Geometry - Version 2.4
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// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
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//
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// Permission to copy, use, modify, sell and distribute this software
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// is granted provided this copyright notice appears in all copies.
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// This software is provided "as is" without express or implied
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// warranty, and with no claim as to its suitability for any purpose.
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//
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//----------------------------------------------------------------------------
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// Contact: mcseem@antigrain.com
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// mcseemagg@yahoo.com
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// http://www.antigrain.com
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//----------------------------------------------------------------------------
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//
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// Adaptation for high precision colors has been sponsored by
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// Liberty Technology Systems, Inc., visit http://lib-sys.com
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//
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// Liberty Technology Systems, Inc. is the provider of
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// PostScript and PDF technology for software developers.
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//
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//----------------------------------------------------------------------------
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#ifndef AGG_PIXFMT_RGBA_INCLUDED
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#define AGG_PIXFMT_RGBA_INCLUDED
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#include <string.h>
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#include <math.h>
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#include "agg_basics.h"
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#include "agg_color_rgba.h"
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#include "agg_rendering_buffer.h"
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namespace agg
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{
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//=========================================================multiplier_rgba
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template<class ColorT, class Order> struct multiplier_rgba
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{
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typedef typename ColorT::value_type value_type;
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typedef typename ColorT::calc_type calc_type;
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//--------------------------------------------------------------------
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static AGG_INLINE void premultiply(value_type* p)
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{
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calc_type a = p[Order::A];
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if(a < ColorT::base_mask)
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{
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if(a == 0)
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{
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p[Order::R] = p[Order::G] = p[Order::B] = 0;
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return;
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}
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p[Order::R] = value_type((p[Order::R] * a + ColorT::base_mask) >> ColorT::base_shift);
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p[Order::G] = value_type((p[Order::G] * a + ColorT::base_mask) >> ColorT::base_shift);
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p[Order::B] = value_type((p[Order::B] * a + ColorT::base_mask) >> ColorT::base_shift);
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}
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}
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//--------------------------------------------------------------------
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static AGG_INLINE void demultiply(value_type* p)
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{
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calc_type a = p[Order::A];
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if(a < ColorT::base_mask)
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{
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if(a == 0)
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{
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p[Order::R] = p[Order::G] = p[Order::B] = 0;
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return;
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}
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calc_type r = (calc_type(p[Order::R]) * ColorT::base_mask) / a;
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calc_type g = (calc_type(p[Order::G]) * ColorT::base_mask) / a;
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calc_type b = (calc_type(p[Order::B]) * ColorT::base_mask) / a;
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p[Order::R] = value_type((r > ColorT::base_mask) ? ColorT::base_mask : r);
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p[Order::G] = value_type((g > ColorT::base_mask) ? ColorT::base_mask : g);
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p[Order::B] = value_type((b > ColorT::base_mask) ? ColorT::base_mask : b);
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}
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}
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};
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//=====================================================apply_gamma_dir_rgba
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template<class ColorT, class Order, class GammaLut> class apply_gamma_dir_rgba
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{
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public:
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typedef typename ColorT::value_type value_type;
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apply_gamma_dir_rgba(const GammaLut& gamma) : m_gamma(gamma) {}
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AGG_INLINE void operator () (value_type* p)
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{
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p[Order::R] = m_gamma.dir(p[Order::R]);
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p[Order::G] = m_gamma.dir(p[Order::G]);
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p[Order::B] = m_gamma.dir(p[Order::B]);
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}
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private:
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const GammaLut& m_gamma;
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};
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//=====================================================apply_gamma_inv_rgba
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template<class ColorT, class Order, class GammaLut> class apply_gamma_inv_rgba
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{
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public:
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typedef typename ColorT::value_type value_type;
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apply_gamma_inv_rgba(const GammaLut& gamma) : m_gamma(gamma) {}
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AGG_INLINE void operator () (value_type* p)
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{
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p[Order::R] = m_gamma.inv(p[Order::R]);
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p[Order::G] = m_gamma.inv(p[Order::G]);
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p[Order::B] = m_gamma.inv(p[Order::B]);
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}
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private:
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const GammaLut& m_gamma;
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};
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//=============================================================blender_rgba
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template<class ColorT, class Order> struct blender_rgba
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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//--------------------------------------------------------------------
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned cr, unsigned cg, unsigned cb,
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unsigned alpha,
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unsigned cover=0)
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{
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calc_type r = p[Order::R];
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calc_type g = p[Order::G];
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calc_type b = p[Order::B];
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calc_type a = p[Order::A];
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p[Order::R] = (value_type)(((cr - r) * alpha + (r << base_shift)) >> base_shift);
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p[Order::G] = (value_type)(((cg - g) * alpha + (g << base_shift)) >> base_shift);
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p[Order::B] = (value_type)(((cb - b) * alpha + (b << base_shift)) >> base_shift);
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p[Order::A] = (value_type)((alpha + a) - ((alpha * a + base_mask) >> base_shift));
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}
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};
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//=========================================================blender_rgba_pre
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template<class ColorT, class Order> struct blender_rgba_pre
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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//--------------------------------------------------------------------
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned cr, unsigned cg, unsigned cb,
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unsigned alpha,
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unsigned cover)
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{
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alpha = color_type::base_mask - alpha;
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cover = (cover + 1) << (base_shift - 8);
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p[Order::R] = (value_type)((p[Order::R] * alpha + cr * cover) >> base_shift);
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p[Order::G] = (value_type)((p[Order::G] * alpha + cg * cover) >> base_shift);
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p[Order::B] = (value_type)((p[Order::B] * alpha + cb * cover) >> base_shift);
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p[Order::A] = (value_type)(base_mask - ((alpha * (base_mask - p[Order::A])) >> base_shift));
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}
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//--------------------------------------------------------------------
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned cr, unsigned cg, unsigned cb,
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unsigned alpha)
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{
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alpha = color_type::base_mask - alpha;
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p[Order::R] = (value_type)(((p[Order::R] * alpha) >> base_shift) + cr);
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p[Order::G] = (value_type)(((p[Order::G] * alpha) >> base_shift) + cg);
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p[Order::B] = (value_type)(((p[Order::B] * alpha) >> base_shift) + cb);
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p[Order::A] = (value_type)(base_mask - ((alpha * (base_mask - p[Order::A])) >> base_shift));
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}
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};
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//======================================================blender_rgba_plain
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template<class ColorT, class Order> struct blender_rgba_plain
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e { base_shift = color_type::base_shift };
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//--------------------------------------------------------------------
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned cr, unsigned cg, unsigned cb,
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unsigned alpha,
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unsigned cover=0)
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{
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if(alpha == 0) return;
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calc_type a = p[Order::A];
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calc_type r = p[Order::R] * a;
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calc_type g = p[Order::G] * a;
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calc_type b = p[Order::B] * a;
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a = ((alpha + a) << base_shift) - alpha * a;
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p[Order::A] = (value_type)(a >> base_shift);
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p[Order::R] = (value_type)((((cr << base_shift) - r) * alpha + (r << base_shift)) / a);
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p[Order::G] = (value_type)((((cg << base_shift) - g) * alpha + (g << base_shift)) / a);
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p[Order::B] = (value_type)((((cb << base_shift) - b) * alpha + (b << base_shift)) / a);
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}
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};
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//=========================================================comp_op_rgba_clear
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template<class ColorT, class Order> struct comp_op_rgba_clear
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned, unsigned, unsigned, unsigned,
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unsigned cover)
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{
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if(cover < 255)
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{
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cover = 255 - cover;
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p[Order::R] = (value_type)((p[Order::R] * cover + 255) >> 8);
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p[Order::G] = (value_type)((p[Order::G] * cover + 255) >> 8);
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p[Order::B] = (value_type)((p[Order::B] * cover + 255) >> 8);
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p[Order::A] = (value_type)((p[Order::A] * cover + 255) >> 8);
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}
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else
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{
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p[0] = p[1] = p[2] = p[3] = 0;
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}
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}
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};
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//===========================================================comp_op_rgba_src
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template<class ColorT, class Order> struct comp_op_rgba_src
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned sr, unsigned sg, unsigned sb,
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unsigned sa, unsigned cover)
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{
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if(cover < 255)
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{
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unsigned alpha = 255 - cover;
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p[Order::R] = (value_type)(((p[Order::R] * alpha + 255) >> 8) + ((sr * cover + 255) >> 8));
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p[Order::G] = (value_type)(((p[Order::G] * alpha + 255) >> 8) + ((sg * cover + 255) >> 8));
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p[Order::B] = (value_type)(((p[Order::B] * alpha + 255) >> 8) + ((sb * cover + 255) >> 8));
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p[Order::A] = (value_type)(((p[Order::A] * alpha + 255) >> 8) + ((sa * cover + 255) >> 8));
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}
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else
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{
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p[Order::R] = sr;
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p[Order::G] = sg;
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p[Order::B] = sb;
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p[Order::A] = sa;
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}
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}
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};
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//===========================================================comp_op_rgba_dst
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template<class ColorT, class Order> struct comp_op_rgba_dst
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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static AGG_INLINE void blend_pix(value_type*,
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unsigned, unsigned, unsigned,
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unsigned, unsigned)
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{
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}
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};
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//======================================================comp_op_rgba_src_over
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template<class ColorT, class Order> struct comp_op_rgba_src_over
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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// Dca' = Sca + Dca.(1 - Sa)
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// Da' = Sa + Da - Sa.Da
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned sr, unsigned sg, unsigned sb,
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unsigned sa, unsigned cover)
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{
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if(cover < 255)
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{
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sr = (sr * cover + 255) >> 8;
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sg = (sg * cover + 255) >> 8;
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sb = (sb * cover + 255) >> 8;
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sa = (sa * cover + 255) >> 8;
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}
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calc_type s1a = base_mask - sa;
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p[Order::R] = (value_type)(sr + ((p[Order::R] * s1a + base_mask) >> base_shift));
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p[Order::G] = (value_type)(sg + ((p[Order::G] * s1a + base_mask) >> base_shift));
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p[Order::B] = (value_type)(sb + ((p[Order::B] * s1a + base_mask) >> base_shift));
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p[Order::A] = (value_type)(sa + p[Order::A] - ((sa * p[Order::A] + base_mask) >> base_shift));
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}
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};
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//======================================================comp_op_rgba_dst_over
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template<class ColorT, class Order> struct comp_op_rgba_dst_over
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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// Dca' = Dca + Sca.(1 - Da)
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// Da' = Sa + Da - Sa.Da
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned sr, unsigned sg, unsigned sb,
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unsigned sa, unsigned cover)
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{
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if(cover < 255)
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{
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sr = (sr * cover + 255) >> 8;
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sg = (sg * cover + 255) >> 8;
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sb = (sb * cover + 255) >> 8;
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sa = (sa * cover + 255) >> 8;
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}
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calc_type d1a = base_mask - p[Order::A];
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p[Order::R] = (value_type)(p[Order::R] + ((sr * d1a + base_mask) >> base_shift));
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p[Order::G] = (value_type)(p[Order::G] + ((sg * d1a + base_mask) >> base_shift));
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p[Order::B] = (value_type)(p[Order::B] + ((sb * d1a + base_mask) >> base_shift));
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p[Order::A] = (value_type)(sa + p[Order::A] - ((sa * p[Order::A] + base_mask) >> base_shift));
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}
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};
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//======================================================comp_op_rgba_src_in
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template<class ColorT, class Order> struct comp_op_rgba_src_in
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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// Dca' = Sca.Da
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// Da' = Sa.Da
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned sr, unsigned sg, unsigned sb,
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unsigned sa, unsigned cover)
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{
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calc_type da = p[Order::A];
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if(cover < 255)
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{
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unsigned alpha = 255 - cover;
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p[Order::R] = (value_type)(((p[Order::R] * alpha + 255) >> 8) + ((((sr * da + base_mask) >> base_shift) * cover + 255) >> 8));
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p[Order::G] = (value_type)(((p[Order::G] * alpha + 255) >> 8) + ((((sg * da + base_mask) >> base_shift) * cover + 255) >> 8));
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p[Order::B] = (value_type)(((p[Order::B] * alpha + 255) >> 8) + ((((sb * da + base_mask) >> base_shift) * cover + 255) >> 8));
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p[Order::A] = (value_type)(((p[Order::A] * alpha + 255) >> 8) + ((((sa * da + base_mask) >> base_shift) * cover + 255) >> 8));
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}
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else
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{
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p[Order::R] = (value_type)((sr * da + base_mask) >> base_shift);
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p[Order::G] = (value_type)((sg * da + base_mask) >> base_shift);
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p[Order::B] = (value_type)((sb * da + base_mask) >> base_shift);
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p[Order::A] = (value_type)((sa * da + base_mask) >> base_shift);
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}
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}
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};
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//======================================================comp_op_rgba_dst_in
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template<class ColorT, class Order> struct comp_op_rgba_dst_in
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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// Dca' = Dca.Sa
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// Da' = Sa.Da
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned, unsigned, unsigned,
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unsigned sa, unsigned cover)
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{
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if(cover < 255)
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{
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sa = base_mask - ((cover * (base_mask - sa) + 255) >> 8);
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}
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p[Order::R] = (value_type)((p[Order::R] * sa + base_mask) >> base_shift);
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p[Order::G] = (value_type)((p[Order::G] * sa + base_mask) >> base_shift);
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p[Order::B] = (value_type)((p[Order::B] * sa + base_mask) >> base_shift);
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p[Order::A] = (value_type)((p[Order::A] * sa + base_mask) >> base_shift);
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}
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};
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//======================================================comp_op_rgba_src_out
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template<class ColorT, class Order> struct comp_op_rgba_src_out
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{
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typedef ColorT color_type;
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typedef Order order_type;
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typedef typename color_type::value_type value_type;
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typedef typename color_type::calc_type calc_type;
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enum base_scale_e
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{
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base_shift = color_type::base_shift,
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base_mask = color_type::base_mask
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};
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// Dca' = Sca.(1 - Da)
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// Da' = Sa.(1 - Da)
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static AGG_INLINE void blend_pix(value_type* p,
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unsigned sr, unsigned sg, unsigned sb,
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unsigned sa, unsigned cover)
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{
|
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calc_type da = base_mask - p[Order::A];
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if(cover < 255)
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{
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|
unsigned alpha = 255 - cover;
|
|
p[Order::R] = (value_type)(((p[Order::R] * alpha + 255) >> 8) + ((((sr * da + base_mask) >> base_shift) * cover + 255) >> 8));
|
|
p[Order::G] = (value_type)(((p[Order::G] * alpha + 255) >> 8) + ((((sg * da + base_mask) >> base_shift) * cover + 255) >> 8));
|
|
p[Order::B] = (value_type)(((p[Order::B] * alpha + 255) >> 8) + ((((sb * da + base_mask) >> base_shift) * cover + 255) >> 8));
|
|
p[Order::A] = (value_type)(((p[Order::A] * alpha + 255) >> 8) + ((((sa * da + base_mask) >> base_shift) * cover + 255) >> 8));
|
|
}
|
|
else
|
|
{
|
|
p[Order::R] = (value_type)((sr * da + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((sg * da + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((sb * da + base_mask) >> base_shift);
|
|
p[Order::A] = (value_type)((sa * da + base_mask) >> base_shift);
|
|
}
|
|
}
|
|
};
|
|
|
|
//======================================================comp_op_rgba_dst_out
|
|
template<class ColorT, class Order> struct comp_op_rgba_dst_out
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Dca.(1 - Sa)
|
|
// Da' = Da.(1 - Sa)
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned, unsigned, unsigned,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
sa = base_mask - sa;
|
|
p[Order::R] = (value_type)((p[Order::R] * sa + base_shift) >> base_shift);
|
|
p[Order::G] = (value_type)((p[Order::G] * sa + base_shift) >> base_shift);
|
|
p[Order::B] = (value_type)((p[Order::B] * sa + base_shift) >> base_shift);
|
|
p[Order::A] = (value_type)((p[Order::A] * sa + base_shift) >> base_shift);
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_src_atop
|
|
template<class ColorT, class Order> struct comp_op_rgba_src_atop
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Sca.Da + Dca.(1 - Sa)
|
|
// Da' = Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
calc_type da = p[Order::A];
|
|
sa = base_mask - sa;
|
|
p[Order::R] = (value_type)((sr * da + p[Order::R] * sa + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((sg * da + p[Order::G] * sa + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((sb * da + p[Order::B] * sa + base_mask) >> base_shift);
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_dst_atop
|
|
template<class ColorT, class Order> struct comp_op_rgba_dst_atop
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Dca.Sa + Sca.(1 - Da)
|
|
// Da' = Sa
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
calc_type da = base_mask - p[Order::A];
|
|
if(cover < 255)
|
|
{
|
|
unsigned alpha = 255 - cover;
|
|
sr = (p[Order::R] * sa + sr * da + base_mask) >> base_shift;
|
|
sg = (p[Order::G] * sa + sg * da + base_mask) >> base_shift;
|
|
sb = (p[Order::B] * sa + sb * da + base_mask) >> base_shift;
|
|
p[Order::R] = (value_type)(((p[Order::R] * alpha + 255) >> 8) + ((sr * cover + 255) >> 8));
|
|
p[Order::G] = (value_type)(((p[Order::G] * alpha + 255) >> 8) + ((sg * cover + 255) >> 8));
|
|
p[Order::B] = (value_type)(((p[Order::B] * alpha + 255) >> 8) + ((sb * cover + 255) >> 8));
|
|
p[Order::A] = (value_type)(((p[Order::A] * alpha + 255) >> 8) + ((sa * cover + 255) >> 8));
|
|
|
|
}
|
|
else
|
|
{
|
|
p[Order::R] = (value_type)((p[Order::R] * sa + sr * da + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((p[Order::G] * sa + sg * da + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((p[Order::B] * sa + sb * da + base_mask) >> base_shift);
|
|
p[Order::A] = (value_type)sa;
|
|
}
|
|
}
|
|
};
|
|
|
|
//=========================================================comp_op_rgba_xor
|
|
template<class ColorT, class Order> struct comp_op_rgba_xor
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// Da' = Sa + Da - 2.Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
p[Order::R] = (value_type)((p[Order::R] * s1a + sr * d1a + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((p[Order::G] * s1a + sg * d1a + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((p[Order::B] * s1a + sb * d1a + base_mask) >> base_shift);
|
|
p[Order::A] = (value_type)(sa + p[Order::A] - ((sa * p[Order::A] + base_mask/2) >> (base_shift - 1)));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=========================================================comp_op_rgba_plus
|
|
template<class ColorT, class Order> struct comp_op_rgba_plus
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Sca + Dca
|
|
// Da' = Sa + Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type dr = p[Order::R] + sr;
|
|
calc_type dg = p[Order::G] + sg;
|
|
calc_type db = p[Order::B] + sb;
|
|
calc_type da = p[Order::A] + sa;
|
|
p[Order::R] = (dr > base_mask) ? base_mask : dr;
|
|
p[Order::G] = (dg > base_mask) ? base_mask : dg;
|
|
p[Order::B] = (db > base_mask) ? base_mask : db;
|
|
p[Order::A] = (da > base_mask) ? base_mask : da;
|
|
}
|
|
}
|
|
};
|
|
|
|
//========================================================comp_op_rgba_minus
|
|
template<class ColorT, class Order> struct comp_op_rgba_minus
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Dca - Sca
|
|
// Da' = 1 - (1 - Sa).(1 - Da)
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type dr = p[Order::R] - sr;
|
|
calc_type dg = p[Order::G] - sg;
|
|
calc_type db = p[Order::B] - sb;
|
|
p[Order::R] = (dr > base_mask) ? 0 : dr;
|
|
p[Order::G] = (dg > base_mask) ? 0 : dg;
|
|
p[Order::B] = (db > base_mask) ? 0 : db;
|
|
p[Order::A] = (value_type)(sa + p[Order::A] - ((sa * p[Order::A] + base_mask) >> base_shift));
|
|
//p[Order::A] = (value_type)(base_mask - (((base_mask - sa) * (base_mask - p[Order::A]) + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_multiply
|
|
template<class ColorT, class Order> struct comp_op_rgba_multiply
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
p[Order::R] = (value_type)((sr * dr + sr * d1a + dr * s1a + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((sg * dg + sg * d1a + dg * s1a + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((sb * db + sb * d1a + db * s1a + base_mask) >> base_shift);
|
|
p[Order::A] = (value_type)(sa + p[Order::A] - ((sa * p[Order::A] + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_screen
|
|
template<class ColorT, class Order> struct comp_op_rgba_screen
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Sca + Dca - Sca.Dca
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
p[Order::R] = (value_type)(sr + dr - ((sr * dr + base_mask) >> base_shift));
|
|
p[Order::G] = (value_type)(sg + dg - ((sg * dg + base_mask) >> base_shift));
|
|
p[Order::B] = (value_type)(sb + db - ((sb * db + base_mask) >> base_shift));
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_overlay
|
|
template<class ColorT, class Order> struct comp_op_rgba_overlay
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// if 2.Dca < Da
|
|
// Dca' = 2.Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// otherwise
|
|
// Dca' = Sa.Da - 2.(Da - Dca).(Sa - Sca) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
//
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
calc_type sada = sa * p[Order::A];
|
|
|
|
p[Order::R] = (value_type)(((2*dr < da) ?
|
|
2*sr*dr + sr*d1a + dr*s1a :
|
|
sada - 2*(da - dr)*(sa - sr) + sr*d1a + dr*s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::G] = (value_type)(((2*dg < da) ?
|
|
2*sg*dg + sg*d1a + dg*s1a :
|
|
sada - 2*(da - dg)*(sa - sg) + sg*d1a + dg*s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::B] = (value_type)(((2*db < da) ?
|
|
2*sb*db + sb*d1a + db*s1a :
|
|
sada - 2*(da - db)*(sa - sb) + sb*d1a + db*s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
template<class T> inline T sd_min(T a, T b) { return (a < b) ? a : b; }
|
|
template<class T> inline T sd_max(T a, T b) { return (a > b) ? a : b; }
|
|
|
|
//=====================================================comp_op_rgba_darken
|
|
template<class ColorT, class Order> struct comp_op_rgba_darken
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = min(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
|
|
p[Order::R] = (value_type)((sd_min(sr * da, dr * sa) + sr * d1a + dr * s1a + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((sd_min(sg * da, dg * sa) + sg * d1a + dg * s1a + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((sd_min(sb * da, db * sa) + sb * d1a + db * s1a + base_mask) >> base_shift);
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_lighten
|
|
template<class ColorT, class Order> struct comp_op_rgba_lighten
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = max(Sca.Da, Dca.Sa) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
|
|
p[Order::R] = (value_type)((sd_max(sr * da, dr * sa) + sr * d1a + dr * s1a + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((sd_max(sg * da, dg * sa) + sg * d1a + dg * s1a + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((sd_max(sb * da, db * sa) + sb * d1a + db * s1a + base_mask) >> base_shift);
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_color_dodge
|
|
template<class ColorT, class Order> struct comp_op_rgba_color_dodge
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// if Sca.Da + Dca.Sa >= Sa.Da
|
|
// Dca' = Sa.Da + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// otherwise
|
|
// Dca' = Dca.Sa/(1-Sca/Sa) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
//
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
long_type drsa = dr * sa;
|
|
long_type dgsa = dg * sa;
|
|
long_type dbsa = db * sa;
|
|
long_type srda = sr * da;
|
|
long_type sgda = sg * da;
|
|
long_type sbda = sb * da;
|
|
long_type sada = sa * da;
|
|
|
|
p[Order::R] = (value_type)((srda + drsa >= sada) ?
|
|
(sada + sr * d1a + dr * s1a + base_mask) >> base_shift :
|
|
drsa / (base_mask - (sr << base_shift) / sa) + ((sr * d1a + dr * s1a + base_mask) >> base_shift));
|
|
|
|
p[Order::G] = (value_type)((sgda + dgsa >= sada) ?
|
|
(sada + sg * d1a + dg * s1a + base_mask) >> base_shift :
|
|
dgsa / (base_mask - (sg << base_shift) / sa) + ((sg * d1a + dg * s1a + base_mask) >> base_shift));
|
|
|
|
p[Order::B] = (value_type)((sbda + dbsa >= sada) ?
|
|
(sada + sb * d1a + db * s1a + base_mask) >> base_shift :
|
|
dbsa / (base_mask - (sb << base_shift) / sa) + ((sb * d1a + db * s1a + base_mask) >> base_shift));
|
|
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_color_burn
|
|
template<class ColorT, class Order> struct comp_op_rgba_color_burn
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// if Sca.Da + Dca.Sa <= Sa.Da
|
|
// Dca' = Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// otherwise
|
|
// Dca' = Sa.(Sca.Da + Dca.Sa - Sa.Da)/Sca + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
//
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
long_type drsa = dr * sa;
|
|
long_type dgsa = dg * sa;
|
|
long_type dbsa = db * sa;
|
|
long_type srda = sr * da;
|
|
long_type sgda = sg * da;
|
|
long_type sbda = sb * da;
|
|
long_type sada = sa * da;
|
|
|
|
p[Order::R] = (value_type)(((srda + drsa <= sada) ?
|
|
sr * d1a + dr * s1a :
|
|
sa * (srda + drsa - sada) / sr + sr * d1a + dr * s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::G] = (value_type)(((sgda + dgsa <= sada) ?
|
|
sg * d1a + dg * s1a :
|
|
sa * (sgda + dgsa - sada) / sg + sg * d1a + dg * s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::B] = (value_type)(((sbda + dbsa <= sada) ?
|
|
sb * d1a + db * s1a :
|
|
sa * (sbda + dbsa - sada) / sb + sb * d1a + db * s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_hard_light
|
|
template<class ColorT, class Order> struct comp_op_rgba_hard_light
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// if 2.Sca < Sa
|
|
// Dca' = 2.Sca.Dca + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// otherwise
|
|
// Dca' = Sa.Da - 2.(Da - Dca).(Sa - Sca) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
//
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
calc_type sada = sa * da;
|
|
|
|
p[Order::R] = (value_type)(((2*sr < sa) ?
|
|
2*sr*dr + sr*d1a + dr*s1a :
|
|
sada - 2*(da - dr)*(sa - sr) + sr*d1a + dr*s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::G] = (value_type)(((2*sg < sa) ?
|
|
2*sg*dg + sg*d1a + dg*s1a :
|
|
sada - 2*(da - dg)*(sa - sg) + sg*d1a + dg*s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::B] = (value_type)(((2*sb < sa) ?
|
|
2*sb*db + sb*d1a + db*s1a :
|
|
sada - 2*(da - db)*(sa - sb) + sb*d1a + db*s1a + base_mask) >> base_shift);
|
|
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_soft_light
|
|
template<class ColorT, class Order> struct comp_op_rgba_soft_light
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// if 2.Sca < Sa
|
|
// Dca' = Dca.(Sa + (1 - Dca/Da).(2.Sca - Sa)) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// otherwise if 8.Dca <= Da
|
|
// Dca' = Dca.(Sa + (1 - Dca/Da).(2.Sca - Sa).(3 - 8.Dca/Da)) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// otherwise
|
|
// Dca' = (Dca.Sa + ((Dca/Da)^(0.5).Da - Dca).(2.Sca - Sa)) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
//
|
|
// Da' = Sa + Da - Sa.Da
|
|
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned r, unsigned g, unsigned b,
|
|
unsigned a, unsigned cover)
|
|
{
|
|
double sr = double(r * cover) / (base_mask * 255);
|
|
double sg = double(g * cover) / (base_mask * 255);
|
|
double sb = double(b * cover) / (base_mask * 255);
|
|
double sa = double(a * cover) / (base_mask * 255);
|
|
if(sa > 0)
|
|
{
|
|
double dr = double(p[Order::R]) / base_mask;
|
|
double dg = double(p[Order::G]) / base_mask;
|
|
double db = double(p[Order::B]) / base_mask;
|
|
double da = double(p[Order::A] ? p[Order::A] : 1) / base_mask;
|
|
if(cover < 255)
|
|
{
|
|
a = (a * cover + 255) >> 8;
|
|
}
|
|
|
|
if(2*sr < sa) dr = dr*(sa + (1 - dr/da)*(2*sr - sa)) + sr*(1 - da) + dr*(1 - sa);
|
|
else if(8*dr <= da) dr = dr*(sa + (1 - dr/da)*(2*sr - sa)*(3 - 8*dr/da)) + sr*(1 - da) + dr*(1 - sa);
|
|
else dr = (dr*sa + (sqrt(dr/da)*da - dr)*(2*sr - sa)) + sr*(1 - da) + dr*(1 - sa);
|
|
|
|
if(2*sg < sa) dg = dg*(sa + (1 - dg/da)*(2*sg - sa)) + sg*(1 - da) + dg*(1 - sa);
|
|
else if(8*dg <= da) dg = dg*(sa + (1 - dg/da)*(2*sg - sa)*(3 - 8*dg/da)) + sg*(1 - da) + dg*(1 - sa);
|
|
else dg = (dg*sa + (sqrt(dg/da)*da - dg)*(2*sg - sa)) + sg*(1 - da) + dg*(1 - sa);
|
|
|
|
if(2*sb < sa) db = db*(sa + (1 - db/da)*(2*sb - sa)) + sb*(1 - da) + db*(1 - sa);
|
|
else if(8*db <= da) db = db*(sa + (1 - db/da)*(2*sb - sa)*(3 - 8*db/da)) + sb*(1 - da) + db*(1 - sa);
|
|
else db = (db*sa + (sqrt(db/da)*da - db)*(2*sb - sa)) + sb*(1 - da) + db*(1 - sa);
|
|
|
|
p[Order::R] = (value_type)uround(dr * base_mask);
|
|
p[Order::G] = (value_type)uround(dg * base_mask);
|
|
p[Order::B] = (value_type)uround(db * base_mask);
|
|
p[Order::A] = (value_type)(a + p[Order::A] - ((a * p[Order::A] + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_difference
|
|
template<class ColorT, class Order> struct comp_op_rgba_difference
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_scale = color_type::base_scale,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = Sca + Dca - 2.min(Sca.Da, Dca.Sa)
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
p[Order::R] = (value_type)(sr + dr - ((2 * sd_min(sr*da, dr*sa) + base_mask) >> base_shift));
|
|
p[Order::G] = (value_type)(sg + dg - ((2 * sd_min(sg*da, dg*sa) + base_mask) >> base_shift));
|
|
p[Order::B] = (value_type)(sb + db - ((2 * sd_min(sb*da, db*sa) + base_mask) >> base_shift));
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_exclusion
|
|
template<class ColorT, class Order> struct comp_op_rgba_exclusion
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = (Sca.Da + Dca.Sa - 2.Sca.Dca) + Sca.(1 - Da) + Dca.(1 - Sa)
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type d1a = base_mask - p[Order::A];
|
|
calc_type s1a = base_mask - sa;
|
|
calc_type dr = p[Order::R];
|
|
calc_type dg = p[Order::G];
|
|
calc_type db = p[Order::B];
|
|
calc_type da = p[Order::A];
|
|
p[Order::R] = (value_type)((sr*da + dr*sa - 2*sr*dr + sr*d1a + dr*s1a + base_mask) >> base_shift);
|
|
p[Order::G] = (value_type)((sg*da + dg*sa - 2*sg*dg + sg*d1a + dg*s1a + base_mask) >> base_shift);
|
|
p[Order::B] = (value_type)((sb*da + db*sa - 2*sb*db + sb*d1a + db*s1a + base_mask) >> base_shift);
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_contrast
|
|
template<class ColorT, class Order> struct comp_op_rgba_contrast
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
long_type dr = p[Order::R];
|
|
long_type dg = p[Order::G];
|
|
long_type db = p[Order::B];
|
|
int da = p[Order::A];
|
|
long_type d2a = da >> 1;
|
|
unsigned s2a = sa >> 1;
|
|
|
|
int r = (int)((((dr - d2a) * int((sr - s2a)*2 + base_mask)) >> base_shift) + d2a);
|
|
int g = (int)((((dg - d2a) * int((sg - s2a)*2 + base_mask)) >> base_shift) + d2a);
|
|
int b = (int)((((db - d2a) * int((sb - s2a)*2 + base_mask)) >> base_shift) + d2a);
|
|
|
|
r = (r < 0) ? 0 : r;
|
|
g = (g < 0) ? 0 : g;
|
|
b = (b < 0) ? 0 : b;
|
|
|
|
p[Order::R] = (value_type)((r > da) ? da : r);
|
|
p[Order::G] = (value_type)((g > da) ? da : g);
|
|
p[Order::B] = (value_type)((b > da) ? da : b);
|
|
}
|
|
};
|
|
|
|
//=====================================================comp_op_rgba_invert
|
|
template<class ColorT, class Order> struct comp_op_rgba_invert
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = (Da - Dca) * Sa + Dca.(1 - Sa)
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
sa = (sa * cover + 255) >> 8;
|
|
if(sa)
|
|
{
|
|
calc_type da = p[Order::A];
|
|
calc_type dr = ((da - p[Order::R]) * sa + base_mask) >> base_shift;
|
|
calc_type dg = ((da - p[Order::G]) * sa + base_mask) >> base_shift;
|
|
calc_type db = ((da - p[Order::B]) * sa + base_mask) >> base_shift;
|
|
calc_type s1a = base_mask - sa;
|
|
p[Order::R] = (value_type)(dr + ((p[Order::R] * s1a + base_mask) >> base_shift));
|
|
p[Order::G] = (value_type)(dg + ((p[Order::G] * s1a + base_mask) >> base_shift));
|
|
p[Order::B] = (value_type)(db + ((p[Order::B] * s1a + base_mask) >> base_shift));
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
//=================================================comp_op_rgba_invert_rgb
|
|
template<class ColorT, class Order> struct comp_op_rgba_invert_rgb
|
|
{
|
|
typedef ColorT color_type;
|
|
typedef Order order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef typename color_type::long_type long_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
// Dca' = (Da - Dca) * Sca + Dca.(1 - Sa)
|
|
// Da' = Sa + Da - Sa.Da
|
|
static AGG_INLINE void blend_pix(value_type* p,
|
|
unsigned sr, unsigned sg, unsigned sb,
|
|
unsigned sa, unsigned cover)
|
|
{
|
|
if(cover < 255)
|
|
{
|
|
sr = (sr * cover + 255) >> 8;
|
|
sg = (sg * cover + 255) >> 8;
|
|
sb = (sb * cover + 255) >> 8;
|
|
sa = (sa * cover + 255) >> 8;
|
|
}
|
|
if(sa)
|
|
{
|
|
calc_type da = p[Order::A];
|
|
calc_type dr = ((da - p[Order::R]) * sr + base_mask) >> base_shift;
|
|
calc_type dg = ((da - p[Order::G]) * sg + base_mask) >> base_shift;
|
|
calc_type db = ((da - p[Order::B]) * sb + base_mask) >> base_shift;
|
|
calc_type s1a = base_mask - sa;
|
|
p[Order::R] = (value_type)(dr + ((p[Order::R] * s1a + base_mask) >> base_shift));
|
|
p[Order::G] = (value_type)(dg + ((p[Order::G] * s1a + base_mask) >> base_shift));
|
|
p[Order::B] = (value_type)(db + ((p[Order::B] * s1a + base_mask) >> base_shift));
|
|
p[Order::A] = (value_type)(sa + da - ((sa * da + base_mask) >> base_shift));
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
//======================================================comp_op_table_rgba
|
|
template<class ColorT, class Order> struct comp_op_table_rgba
|
|
{
|
|
typedef typename ColorT::value_type value_type;
|
|
typedef void (*comp_op_func_type)(value_type* p,
|
|
unsigned cr,
|
|
unsigned cg,
|
|
unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover);
|
|
static comp_op_func_type g_comp_op_func[];
|
|
};
|
|
|
|
//==========================================================g_comp_op_func
|
|
template<class ColorT, class Order>
|
|
typename comp_op_table_rgba<ColorT, Order>::comp_op_func_type
|
|
comp_op_table_rgba<ColorT, Order>::g_comp_op_func[] =
|
|
{
|
|
comp_op_rgba_clear <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_src <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_dst <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_src_over <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_dst_over <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_src_in <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_dst_in <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_src_out <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_dst_out <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_src_atop <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_dst_atop <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_xor <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_plus <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_minus <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_multiply <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_screen <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_overlay <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_darken <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_lighten <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_color_dodge<ColorT,Order>::blend_pix,
|
|
comp_op_rgba_color_burn <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_hard_light <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_soft_light <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_difference <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_exclusion <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_contrast <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_invert <ColorT,Order>::blend_pix,
|
|
comp_op_rgba_invert_rgb <ColorT,Order>::blend_pix,
|
|
0
|
|
};
|
|
|
|
|
|
//==============================================================comp_op_e
|
|
enum comp_op_e
|
|
{
|
|
comp_op_clear, //----comp_op_clear
|
|
comp_op_src, //----comp_op_src
|
|
comp_op_dst, //----comp_op_dst
|
|
comp_op_src_over, //----comp_op_src_over
|
|
comp_op_dst_over, //----comp_op_dst_over
|
|
comp_op_src_in, //----comp_op_src_in
|
|
comp_op_dst_in, //----comp_op_dst_in
|
|
comp_op_src_out, //----comp_op_src_out
|
|
comp_op_dst_out, //----comp_op_dst_out
|
|
comp_op_src_atop, //----comp_op_src_atop
|
|
comp_op_dst_atop, //----comp_op_dst_atop
|
|
comp_op_xor, //----comp_op_xor
|
|
comp_op_plus, //----comp_op_plus
|
|
comp_op_minus, //----comp_op_minus
|
|
comp_op_multiply, //----comp_op_multiply
|
|
comp_op_screen, //----comp_op_screen
|
|
comp_op_overlay, //----comp_op_overlay
|
|
comp_op_darken, //----comp_op_darken
|
|
comp_op_lighten, //----comp_op_lighten
|
|
comp_op_color_dodge, //----comp_op_color_dodge
|
|
comp_op_color_burn, //----comp_op_color_burn
|
|
comp_op_hard_light, //----comp_op_hard_light
|
|
comp_op_soft_light, //----comp_op_soft_light
|
|
comp_op_difference, //----comp_op_difference
|
|
comp_op_exclusion, //----comp_op_exclusion
|
|
comp_op_contrast, //----comp_op_contrast
|
|
comp_op_invert, //----comp_op_invert
|
|
comp_op_invert_rgb, //----comp_op_invert_rgb
|
|
|
|
end_of_comp_op_e
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//====================================================comp_op_adaptor_rgba
|
|
template<class ColorT, class Order> struct comp_op_adaptor_rgba
|
|
{
|
|
typedef Order order_type;
|
|
typedef ColorT color_type;
|
|
typedef typename color_type::value_type value_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
static AGG_INLINE void blend_pix(unsigned op, value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover)
|
|
{
|
|
comp_op_table_rgba<ColorT, Order>::g_comp_op_func[op]
|
|
(p, (cr * ca + base_mask) >> base_shift,
|
|
(cg * ca + base_mask) >> base_shift,
|
|
(cb * ca + base_mask) >> base_shift,
|
|
ca, cover);
|
|
}
|
|
};
|
|
|
|
//=========================================comp_op_adaptor_clip_to_dst_rgba
|
|
template<class ColorT, class Order> struct comp_op_adaptor_clip_to_dst_rgba
|
|
{
|
|
typedef Order order_type;
|
|
typedef ColorT color_type;
|
|
typedef typename color_type::value_type value_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
static AGG_INLINE void blend_pix(unsigned op, value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover)
|
|
{
|
|
cr = (cr * ca + base_mask) >> base_shift;
|
|
cg = (cg * ca + base_mask) >> base_shift;
|
|
cb = (cb * ca + base_mask) >> base_shift;
|
|
unsigned da = p[Order::A];
|
|
comp_op_table_rgba<ColorT, Order>::g_comp_op_func[op]
|
|
(p, (cr * da + base_mask) >> base_shift,
|
|
(cg * da + base_mask) >> base_shift,
|
|
(cb * da + base_mask) >> base_shift,
|
|
(ca * da + base_mask) >> base_shift,
|
|
cover);
|
|
}
|
|
};
|
|
|
|
//================================================comp_op_adaptor_rgba_pre
|
|
template<class ColorT, class Order> struct comp_op_adaptor_rgba_pre
|
|
{
|
|
typedef Order order_type;
|
|
typedef ColorT color_type;
|
|
typedef typename color_type::value_type value_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
static AGG_INLINE void blend_pix(unsigned op, value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover)
|
|
{
|
|
comp_op_table_rgba<ColorT, Order>::g_comp_op_func[op](p, cr, cg, cb, ca, cover);
|
|
}
|
|
};
|
|
|
|
//=====================================comp_op_adaptor_clip_to_dst_rgba_pre
|
|
template<class ColorT, class Order> struct comp_op_adaptor_clip_to_dst_rgba_pre
|
|
{
|
|
typedef Order order_type;
|
|
typedef ColorT color_type;
|
|
typedef typename color_type::value_type value_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
static AGG_INLINE void blend_pix(unsigned op, value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover)
|
|
{
|
|
unsigned da = p[Order::A];
|
|
comp_op_table_rgba<ColorT, Order>::g_comp_op_func[op]
|
|
(p, (cr * da + base_mask) >> base_shift,
|
|
(cg * da + base_mask) >> base_shift,
|
|
(cb * da + base_mask) >> base_shift,
|
|
(ca * da + base_mask) >> base_shift,
|
|
cover);
|
|
}
|
|
};
|
|
|
|
//=======================================================comp_adaptor_rgba
|
|
template<class BlenderPre> struct comp_adaptor_rgba
|
|
{
|
|
typedef typename BlenderPre::order_type order_type;
|
|
typedef typename BlenderPre::color_type color_type;
|
|
typedef typename color_type::value_type value_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
static AGG_INLINE void blend_pix(unsigned op, value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover)
|
|
{
|
|
BlenderPre::blend_pix(p,
|
|
(cr * ca + base_mask) >> base_shift,
|
|
(cg * ca + base_mask) >> base_shift,
|
|
(cb * ca + base_mask) >> base_shift,
|
|
ca, cover);
|
|
}
|
|
};
|
|
|
|
//==========================================comp_adaptor_clip_to_dst_rgba
|
|
template<class BlenderPre> struct comp_adaptor_clip_to_dst_rgba
|
|
{
|
|
typedef typename BlenderPre::order_type order_type;
|
|
typedef typename BlenderPre::color_type color_type;
|
|
typedef typename color_type::value_type value_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
static AGG_INLINE void blend_pix(unsigned op, value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover)
|
|
{
|
|
cr = (cr * ca + base_mask) >> base_shift;
|
|
cg = (cg * ca + base_mask) >> base_shift;
|
|
cb = (cb * ca + base_mask) >> base_shift;
|
|
unsigned da = p[order_type::A];
|
|
BlenderPre::blend_pix(p,
|
|
(cr * da + base_mask) >> base_shift,
|
|
(cg * da + base_mask) >> base_shift,
|
|
(cb * da + base_mask) >> base_shift,
|
|
(ca * da + base_mask) >> base_shift,
|
|
cover);
|
|
}
|
|
};
|
|
|
|
//======================================comp_adaptor_clip_to_dst_rgba_pre
|
|
template<class BlenderPre> struct comp_adaptor_clip_to_dst_rgba_pre
|
|
{
|
|
typedef typename BlenderPre::order_type order_type;
|
|
typedef typename BlenderPre::color_type color_type;
|
|
typedef typename color_type::value_type value_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
static AGG_INLINE void blend_pix(unsigned op, value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned ca,
|
|
unsigned cover)
|
|
{
|
|
unsigned da = p[order_type::A];
|
|
BlenderPre::blend_pix(p,
|
|
(cr * da + base_mask) >> base_shift,
|
|
(cg * da + base_mask) >> base_shift,
|
|
(cb * da + base_mask) >> base_shift,
|
|
(ca * da + base_mask) >> base_shift,
|
|
cover);
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//===============================================copy_or_blend_rgba_wrapper
|
|
template<class Blender> struct copy_or_blend_rgba_wrapper
|
|
{
|
|
typedef typename Blender::color_type color_type;
|
|
typedef typename Blender::order_type order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_scale = color_type::base_scale,
|
|
base_mask = color_type::base_mask
|
|
};
|
|
|
|
//--------------------------------------------------------------------
|
|
static AGG_INLINE void copy_or_blend_pix(value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned alpha)
|
|
{
|
|
if(alpha)
|
|
{
|
|
if(alpha == base_mask)
|
|
{
|
|
p[order_type::R] = cr;
|
|
p[order_type::G] = cg;
|
|
p[order_type::B] = cb;
|
|
p[order_type::A] = base_mask;
|
|
}
|
|
else
|
|
{
|
|
Blender::blend_pix(p, cr, cg, cb, alpha);
|
|
}
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
static AGG_INLINE void copy_or_blend_pix(value_type* p,
|
|
unsigned cr, unsigned cg, unsigned cb,
|
|
unsigned alpha,
|
|
unsigned cover)
|
|
{
|
|
if(cover == 255)
|
|
{
|
|
copy_or_blend_pix(p, cr, cg, cb, alpha);
|
|
}
|
|
else
|
|
{
|
|
if(alpha)
|
|
{
|
|
alpha = (alpha * (cover + 1)) >> 8;
|
|
if(alpha == base_mask)
|
|
{
|
|
p[order_type::R] = cr;
|
|
p[order_type::G] = cg;
|
|
p[order_type::B] = cb;
|
|
p[order_type::A] = base_mask;
|
|
}
|
|
else
|
|
{
|
|
Blender::blend_pix(p, cr, cg, cb, alpha, cover);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//=================================================pixfmt_alpha_blend_rgba
|
|
template<class Blender, class RenBuf, class PixelT = int32u>
|
|
class pixfmt_alpha_blend_rgba
|
|
{
|
|
public:
|
|
typedef RenBuf rbuf_type;
|
|
typedef typename rbuf_type::row_data row_data;
|
|
typedef PixelT pixel_type;
|
|
typedef Blender blender_type;
|
|
typedef typename blender_type::color_type color_type;
|
|
typedef typename blender_type::order_type order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
typedef copy_or_blend_rgba_wrapper<blender_type> cob_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_scale = color_type::base_scale,
|
|
base_mask = color_type::base_mask,
|
|
pix_width = sizeof(pixel_type)
|
|
};
|
|
|
|
//--------------------------------------------------------------------
|
|
pixfmt_alpha_blend_rgba() : m_rbuf(0) {}
|
|
pixfmt_alpha_blend_rgba(rbuf_type& rb) : m_rbuf(&rb) {}
|
|
void attach(rbuf_type& rb) { m_rbuf = &rb; }
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class PixFmt>
|
|
bool attach(PixFmt& pixf, int x1, int y1, int x2, int y2)
|
|
{
|
|
rect_i r(x1, y1, x2, y2);
|
|
if(r.clip(rect_i(0, 0, pixf.width()-1, pixf.height()-1)))
|
|
{
|
|
int stride = pixf.stride();
|
|
m_rbuf->attach(pixf.pix_ptr(r.x1, stride < 0 ? r.y2 : r.y1),
|
|
(r.x2 - r.x1) + 1,
|
|
(r.y2 - r.y1) + 1,
|
|
stride);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE unsigned width() const { return m_rbuf->width(); }
|
|
AGG_INLINE unsigned height() const { return m_rbuf->height(); }
|
|
AGG_INLINE int stride() const { return m_rbuf->stride(); }
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE int8u* row_ptr(int y) { return m_rbuf->row_ptr(y); }
|
|
AGG_INLINE const int8u* row_ptr(int y) const { return m_rbuf->row_ptr(y); }
|
|
AGG_INLINE row_data row(int y) const { return m_rbuf->row(y); }
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE int8u* pix_ptr(int x, int y)
|
|
{
|
|
return m_rbuf->row_ptr(y) + x * pix_width;
|
|
}
|
|
|
|
AGG_INLINE const int8u* pix_ptr(int x, int y) const
|
|
{
|
|
return m_rbuf->row_ptr(y) + x * pix_width;
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE static void make_pix(int8u* p, const color_type& c)
|
|
{
|
|
((value_type*)p)[order_type::R] = c.r;
|
|
((value_type*)p)[order_type::G] = c.g;
|
|
((value_type*)p)[order_type::B] = c.b;
|
|
((value_type*)p)[order_type::A] = c.a;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE color_type pixel(int x, int y) const
|
|
{
|
|
const value_type* p = (const value_type*)m_rbuf->row_ptr(y);
|
|
if(p)
|
|
{
|
|
p += x << 2;
|
|
return color_type(p[order_type::R],
|
|
p[order_type::G],
|
|
p[order_type::B],
|
|
p[order_type::A]);
|
|
}
|
|
return color_type::no_color();
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE void copy_pixel(int x, int y, const color_type& c)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, 1) + (x << 2);
|
|
p[order_type::R] = c.r;
|
|
p[order_type::G] = c.g;
|
|
p[order_type::B] = c.b;
|
|
p[order_type::A] = c.a;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE void blend_pixel(int x, int y, const color_type& c, int8u cover)
|
|
{
|
|
cob_type::copy_or_blend_pix(
|
|
(value_type*)m_rbuf->row_ptr(x, y, 1) + (x << 2),
|
|
c.r, c.g, c.b, c.a,
|
|
cover);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE void copy_hline(int x, int y,
|
|
unsigned len,
|
|
const color_type& c)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
pixel_type v;
|
|
((value_type*)&v)[order_type::R] = c.r;
|
|
((value_type*)&v)[order_type::G] = c.g;
|
|
((value_type*)&v)[order_type::B] = c.b;
|
|
((value_type*)&v)[order_type::A] = c.a;
|
|
do
|
|
{
|
|
*(pixel_type*)p = v;
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE void copy_vline(int x, int y,
|
|
unsigned len,
|
|
const color_type& c)
|
|
{
|
|
pixel_type v;
|
|
((value_type*)&v)[order_type::R] = c.r;
|
|
((value_type*)&v)[order_type::G] = c.g;
|
|
((value_type*)&v)[order_type::B] = c.b;
|
|
((value_type*)&v)[order_type::A] = c.a;
|
|
do
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
*(pixel_type*)p = v;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_hline(int x, int y,
|
|
unsigned len,
|
|
const color_type& c,
|
|
int8u cover)
|
|
{
|
|
if (c.a)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8;
|
|
if(alpha == base_mask)
|
|
{
|
|
pixel_type v;
|
|
((value_type*)&v)[order_type::R] = c.r;
|
|
((value_type*)&v)[order_type::G] = c.g;
|
|
((value_type*)&v)[order_type::B] = c.b;
|
|
((value_type*)&v)[order_type::A] = c.a;
|
|
do
|
|
{
|
|
*(pixel_type*)p = v;
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
if(cover == 255)
|
|
{
|
|
do
|
|
{
|
|
blender_type::blend_pix(p, c.r, c.g, c.b, alpha);
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
blender_type::blend_pix(p, c.r, c.g, c.b, alpha, cover);
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_vline(int x, int y,
|
|
unsigned len,
|
|
const color_type& c,
|
|
int8u cover)
|
|
{
|
|
if (c.a)
|
|
{
|
|
value_type* p;
|
|
calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8;
|
|
if(alpha == base_mask)
|
|
{
|
|
pixel_type v;
|
|
((value_type*)&v)[order_type::R] = c.r;
|
|
((value_type*)&v)[order_type::G] = c.g;
|
|
((value_type*)&v)[order_type::B] = c.b;
|
|
((value_type*)&v)[order_type::A] = c.a;
|
|
do
|
|
{
|
|
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
*(pixel_type*)p = v;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
if(cover == 255)
|
|
{
|
|
do
|
|
{
|
|
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
blender_type::blend_pix(p, c.r, c.g, c.b, alpha);
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
blender_type::blend_pix(p, c.r, c.g, c.b, alpha, cover);
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_solid_hspan(int x, int y,
|
|
unsigned len,
|
|
const color_type& c,
|
|
const int8u* covers)
|
|
{
|
|
if (c.a)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
do
|
|
{
|
|
calc_type alpha = (calc_type(c.a) * (calc_type(*covers) + 1)) >> 8;
|
|
if(alpha == base_mask)
|
|
{
|
|
p[order_type::R] = c.r;
|
|
p[order_type::G] = c.g;
|
|
p[order_type::B] = c.b;
|
|
p[order_type::A] = base_mask;
|
|
}
|
|
else
|
|
{
|
|
blender_type::blend_pix(p, c.r, c.g, c.b, alpha, *covers);
|
|
}
|
|
p += 4;
|
|
++covers;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_solid_vspan(int x, int y,
|
|
unsigned len,
|
|
const color_type& c,
|
|
const int8u* covers)
|
|
{
|
|
if (c.a)
|
|
{
|
|
do
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
calc_type alpha = (calc_type(c.a) * (calc_type(*covers) + 1)) >> 8;
|
|
if(alpha == base_mask)
|
|
{
|
|
p[order_type::R] = c.r;
|
|
p[order_type::G] = c.g;
|
|
p[order_type::B] = c.b;
|
|
p[order_type::A] = base_mask;
|
|
}
|
|
else
|
|
{
|
|
blender_type::blend_pix(p, c.r, c.g, c.b, alpha, *covers);
|
|
}
|
|
++covers;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void copy_color_hspan(int x, int y,
|
|
unsigned len,
|
|
const color_type* colors)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
do
|
|
{
|
|
p[order_type::R] = colors->r;
|
|
p[order_type::G] = colors->g;
|
|
p[order_type::B] = colors->b;
|
|
p[order_type::A] = colors->a;
|
|
++colors;
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void copy_color_vspan(int x, int y,
|
|
unsigned len,
|
|
const color_type* colors)
|
|
{
|
|
do
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
p[order_type::R] = colors->r;
|
|
p[order_type::G] = colors->g;
|
|
p[order_type::B] = colors->b;
|
|
p[order_type::A] = colors->a;
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_color_hspan(int x, int y,
|
|
unsigned len,
|
|
const color_type* colors,
|
|
const int8u* covers,
|
|
int8u cover)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
if(covers)
|
|
{
|
|
do
|
|
{
|
|
cob_type::copy_or_blend_pix(p,
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a,
|
|
*covers++);
|
|
p += 4;
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
if(cover == 255)
|
|
{
|
|
do
|
|
{
|
|
cob_type::copy_or_blend_pix(p,
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a);
|
|
p += 4;
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
cob_type::copy_or_blend_pix(p,
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a,
|
|
cover);
|
|
p += 4;
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_color_vspan(int x, int y,
|
|
unsigned len,
|
|
const color_type* colors,
|
|
const int8u* covers,
|
|
int8u cover)
|
|
{
|
|
value_type* p;
|
|
if(covers)
|
|
{
|
|
do
|
|
{
|
|
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
cob_type::copy_or_blend_pix(p,
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a,
|
|
*covers++);
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
if(cover == 255)
|
|
{
|
|
do
|
|
{
|
|
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
cob_type::copy_or_blend_pix(p,
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a);
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
cob_type::copy_or_blend_pix(p,
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a,
|
|
cover);
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class Function> void for_each_pixel(Function f)
|
|
{
|
|
unsigned y;
|
|
for(y = 0; y < height(); ++y)
|
|
{
|
|
row_data r = m_rbuf->row(y);
|
|
if(r.ptr)
|
|
{
|
|
unsigned len = r.x2 - r.x1 + 1;
|
|
value_type* p =
|
|
(value_type*)m_rbuf->row_ptr(r.x1, y, len) + (r.x1 << 2);
|
|
do
|
|
{
|
|
f(p);
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void premultiply()
|
|
{
|
|
for_each_pixel(multiplier_rgba<color_type, order_type>::premultiply);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void demultiply()
|
|
{
|
|
for_each_pixel(multiplier_rgba<color_type, order_type>::demultiply);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class GammaLut> void apply_gamma_dir(const GammaLut& g)
|
|
{
|
|
for_each_pixel(apply_gamma_dir_rgba<color_type, order_type, GammaLut>(g));
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class GammaLut> void apply_gamma_inv(const GammaLut& g)
|
|
{
|
|
for_each_pixel(apply_gamma_inv_rgba<color_type, order_type, GammaLut>(g));
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class RenBuf2> void copy_from(const RenBuf2& from,
|
|
int xdst, int ydst,
|
|
int xsrc, int ysrc,
|
|
unsigned len)
|
|
{
|
|
const int8u* p = from.row_ptr(ysrc);
|
|
if(p)
|
|
{
|
|
memmove(m_rbuf->row_ptr(xdst, ydst, len) + xdst * pix_width,
|
|
p + xsrc * pix_width,
|
|
len * pix_width);
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class SrcPixelFormatRenderer>
|
|
void blend_from(const SrcPixelFormatRenderer& from,
|
|
int xdst, int ydst,
|
|
int xsrc, int ysrc,
|
|
unsigned len,
|
|
int8u cover)
|
|
{
|
|
typedef typename SrcPixelFormatRenderer::order_type src_order;
|
|
const value_type* psrc = (value_type*)from.row_ptr(ysrc);
|
|
if(psrc)
|
|
{
|
|
psrc += xsrc << 2;
|
|
value_type* pdst =
|
|
(value_type*)m_rbuf->row_ptr(xdst, ydst, len) + (xdst << 2);
|
|
int incp = 4;
|
|
if(xdst > xsrc)
|
|
{
|
|
psrc += (len-1) << 2;
|
|
pdst += (len-1) << 2;
|
|
incp = -4;
|
|
}
|
|
|
|
if(cover == 255)
|
|
{
|
|
do
|
|
{
|
|
cob_type::copy_or_blend_pix(pdst,
|
|
psrc[src_order::R],
|
|
psrc[src_order::G],
|
|
psrc[src_order::B],
|
|
psrc[src_order::A]);
|
|
psrc += incp;
|
|
pdst += incp;
|
|
}
|
|
while(--len);
|
|
}
|
|
else
|
|
{
|
|
do
|
|
{
|
|
cob_type::copy_or_blend_pix(pdst,
|
|
psrc[src_order::R],
|
|
psrc[src_order::G],
|
|
psrc[src_order::B],
|
|
psrc[src_order::A],
|
|
cover);
|
|
psrc += incp;
|
|
pdst += incp;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
}
|
|
|
|
private:
|
|
rbuf_type* m_rbuf;
|
|
};
|
|
|
|
|
|
|
|
|
|
//================================================pixfmt_custom_blend_rgba
|
|
template<class Blender, class RenBuf> class pixfmt_custom_blend_rgba
|
|
{
|
|
public:
|
|
typedef RenBuf rbuf_type;
|
|
typedef typename rbuf_type::row_data row_data;
|
|
typedef Blender blender_type;
|
|
typedef typename blender_type::color_type color_type;
|
|
typedef typename blender_type::order_type order_type;
|
|
typedef typename color_type::value_type value_type;
|
|
typedef typename color_type::calc_type calc_type;
|
|
enum base_scale_e
|
|
{
|
|
base_shift = color_type::base_shift,
|
|
base_scale = color_type::base_scale,
|
|
base_mask = color_type::base_mask,
|
|
pix_width = sizeof(value_type) * 4
|
|
};
|
|
|
|
|
|
//--------------------------------------------------------------------
|
|
pixfmt_custom_blend_rgba() : m_rbuf(0), m_comp_op(3) {}
|
|
pixfmt_custom_blend_rgba(rbuf_type& rb, unsigned comp_op=3) :
|
|
m_rbuf(&rb),
|
|
m_comp_op(comp_op)
|
|
{}
|
|
void attach(rbuf_type& rb) { m_rbuf = &rb; }
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class PixFmt>
|
|
bool attach(PixFmt& pixf, int x1, int y1, int x2, int y2)
|
|
{
|
|
rect_i r(x1, y1, x2, y2);
|
|
if(r.clip(rect_i(0, 0, pixf.width()-1, pixf.height()-1)))
|
|
{
|
|
int stride = pixf.stride();
|
|
m_rbuf->attach(pixf.pix_ptr(r.x1, stride < 0 ? r.y2 : r.y1),
|
|
(r.x2 - r.x1) + 1,
|
|
(r.y2 - r.y1) + 1,
|
|
stride);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE unsigned width() const { return m_rbuf->width(); }
|
|
AGG_INLINE unsigned height() const { return m_rbuf->height(); }
|
|
AGG_INLINE int stride() const { return m_rbuf->stride(); }
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE int8u* row_ptr(int y) { return m_rbuf->row_ptr(y); }
|
|
AGG_INLINE const int8u* row_ptr(int y) const { return m_rbuf->row_ptr(y); }
|
|
AGG_INLINE row_data row(int y) const { return m_rbuf->row(y); }
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE int8u* pix_ptr(int x, int y)
|
|
{
|
|
return m_rbuf->row_ptr(y) + x * pix_width;
|
|
}
|
|
|
|
AGG_INLINE const int8u* pix_ptr(int x, int y) const
|
|
{
|
|
return m_rbuf->row_ptr(y) + x * pix_width;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void comp_op(unsigned op) { m_comp_op = op; }
|
|
unsigned comp_op() const { return m_comp_op; }
|
|
|
|
//--------------------------------------------------------------------
|
|
AGG_INLINE static void make_pix(int8u* p, const color_type& c)
|
|
{
|
|
((value_type*)p)[order_type::R] = c.r;
|
|
((value_type*)p)[order_type::G] = c.g;
|
|
((value_type*)p)[order_type::B] = c.b;
|
|
((value_type*)p)[order_type::A] = c.a;
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
color_type pixel(int x, int y) const
|
|
{
|
|
const value_type* p = (value_type*)m_rbuf->row_ptr(y) + (x << 2);
|
|
return color_type(p[order_type::R],
|
|
p[order_type::G],
|
|
p[order_type::B],
|
|
p[order_type::A]);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void copy_pixel(int x, int y, const color_type& c)
|
|
{
|
|
blender_type::blend_pix(
|
|
m_comp_op,
|
|
(value_type*)m_rbuf->row_ptr(x, y, 1) + (x << 2),
|
|
c.r, c.g, c.b, c.a, 255);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_pixel(int x, int y, const color_type& c, int8u cover)
|
|
{
|
|
blender_type::blend_pix(
|
|
m_comp_op,
|
|
(value_type*)m_rbuf->row_ptr(x, y, 1) + (x << 2),
|
|
c.r, c.g, c.b, c.a,
|
|
cover);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void copy_hline(int x, int y, unsigned len, const color_type& c)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);;
|
|
do
|
|
{
|
|
blender_type::blend_pix(m_comp_op, p, c.r, c.g, c.b, c.a, 255);
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void copy_vline(int x, int y, unsigned len, const color_type& c)
|
|
{
|
|
do
|
|
{
|
|
blender_type::blend_pix(
|
|
m_comp_op,
|
|
(value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2),
|
|
c.r, c.g, c.b, c.a, 255);
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_hline(int x, int y, unsigned len,
|
|
const color_type& c, int8u cover)
|
|
{
|
|
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
do
|
|
{
|
|
blender_type::blend_pix(m_comp_op, p, c.r, c.g, c.b, c.a, cover);
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_vline(int x, int y, unsigned len,
|
|
const color_type& c, int8u cover)
|
|
{
|
|
|
|
do
|
|
{
|
|
blender_type::blend_pix(
|
|
m_comp_op,
|
|
(value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2),
|
|
c.r, c.g, c.b, c.a,
|
|
cover);
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_solid_hspan(int x, int y, unsigned len,
|
|
const color_type& c, const int8u* covers)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
do
|
|
{
|
|
blender_type::blend_pix(m_comp_op,
|
|
p, c.r, c.g, c.b, c.a,
|
|
*covers++);
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_solid_vspan(int x, int y, unsigned len,
|
|
const color_type& c, const int8u* covers)
|
|
{
|
|
do
|
|
{
|
|
blender_type::blend_pix(
|
|
m_comp_op,
|
|
(value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2),
|
|
c.r, c.g, c.b, c.a,
|
|
*covers++);
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void copy_color_hspan(int x, int y,
|
|
unsigned len,
|
|
const color_type* colors)
|
|
{
|
|
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
do
|
|
{
|
|
p[order_type::R] = colors->r;
|
|
p[order_type::G] = colors->g;
|
|
p[order_type::B] = colors->b;
|
|
p[order_type::A] = colors->a;
|
|
++colors;
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void copy_color_vspan(int x, int y,
|
|
unsigned len,
|
|
const color_type* colors)
|
|
{
|
|
do
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2);
|
|
p[order_type::R] = colors->r;
|
|
p[order_type::G] = colors->g;
|
|
p[order_type::B] = colors->b;
|
|
p[order_type::A] = colors->a;
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_color_hspan(int x, int y, unsigned len,
|
|
const color_type* colors,
|
|
const int8u* covers,
|
|
int8u cover)
|
|
{
|
|
value_type* p = (value_type*)m_rbuf->row_ptr(x, y, len) + (x << 2);
|
|
do
|
|
{
|
|
blender_type::blend_pix(m_comp_op,
|
|
p,
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a,
|
|
covers ? *covers++ : cover);
|
|
p += 4;
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void blend_color_vspan(int x, int y, unsigned len,
|
|
const color_type* colors,
|
|
const int8u* covers,
|
|
int8u cover)
|
|
{
|
|
do
|
|
{
|
|
blender_type::blend_pix(
|
|
m_comp_op,
|
|
(value_type*)m_rbuf->row_ptr(x, y++, 1) + (x << 2),
|
|
colors->r,
|
|
colors->g,
|
|
colors->b,
|
|
colors->a,
|
|
covers ? *covers++ : cover);
|
|
++colors;
|
|
}
|
|
while(--len);
|
|
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class Function> void for_each_pixel(Function f)
|
|
{
|
|
unsigned y;
|
|
for(y = 0; y < height(); ++y)
|
|
{
|
|
row_data r = m_rbuf->row(y);
|
|
if(r.ptr)
|
|
{
|
|
unsigned len = r.x2 - r.x1 + 1;
|
|
value_type* p =
|
|
(value_type*)m_rbuf->row_ptr(r.x1, y, len) + (r.x1 << 2);
|
|
do
|
|
{
|
|
f(p);
|
|
p += 4;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void premultiply()
|
|
{
|
|
for_each_pixel(multiplier_rgba<color_type, order_type>::premultiply);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
void demultiply()
|
|
{
|
|
for_each_pixel(multiplier_rgba<color_type, order_type>::demultiply);
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class GammaLut> void apply_gamma_dir(const GammaLut& g)
|
|
{
|
|
for_each_pixel(apply_gamma_dir_rgba<color_type, order_type, GammaLut>(g));
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class GammaLut> void apply_gamma_inv(const GammaLut& g)
|
|
{
|
|
for_each_pixel(apply_gamma_inv_rgba<color_type, order_type, GammaLut>(g));
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class RenBuf2> void copy_from(const RenBuf2& from,
|
|
int xdst, int ydst,
|
|
int xsrc, int ysrc,
|
|
unsigned len)
|
|
{
|
|
const int8u* p = from.row_ptr(ysrc);
|
|
if(p)
|
|
{
|
|
memmove(m_rbuf->row_ptr(xdst, ydst, len) + xdst * pix_width,
|
|
p + xsrc * pix_width,
|
|
len * pix_width);
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------
|
|
template<class SrcPixelFormatRenderer>
|
|
void blend_from(const SrcPixelFormatRenderer& from,
|
|
int xdst, int ydst,
|
|
int xsrc, int ysrc,
|
|
unsigned len,
|
|
int8u cover)
|
|
{
|
|
typedef typename SrcPixelFormatRenderer::order_type src_order;
|
|
const value_type* psrc = (const value_type*)from.row_ptr(ysrc);
|
|
if(psrc)
|
|
{
|
|
psrc += xsrc << 2;
|
|
value_type* pdst =
|
|
(value_type*)m_rbuf->row_ptr(xdst, ydst, len) + (xdst << 2);
|
|
|
|
int incp = 4;
|
|
if(xdst > xsrc)
|
|
{
|
|
psrc += (len-1) << 2;
|
|
pdst += (len-1) << 2;
|
|
incp = -4;
|
|
}
|
|
|
|
do
|
|
{
|
|
blender_type::blend_pix(m_comp_op,
|
|
pdst,
|
|
psrc[src_order::R],
|
|
psrc[src_order::G],
|
|
psrc[src_order::B],
|
|
psrc[src_order::A],
|
|
cover);
|
|
psrc += incp;
|
|
pdst += incp;
|
|
}
|
|
while(--len);
|
|
}
|
|
}
|
|
|
|
private:
|
|
rbuf_type* m_rbuf;
|
|
unsigned m_comp_op;
|
|
};
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------
|
|
typedef blender_rgba<rgba8, order_rgba> blender_rgba32; //----blender_rgba32
|
|
typedef blender_rgba<rgba8, order_argb> blender_argb32; //----blender_argb32
|
|
typedef blender_rgba<rgba8, order_abgr> blender_abgr32; //----blender_abgr32
|
|
typedef blender_rgba<rgba8, order_bgra> blender_bgra32; //----blender_bgra32
|
|
|
|
typedef blender_rgba_pre<rgba8, order_rgba> blender_rgba32_pre; //----blender_rgba32_pre
|
|
typedef blender_rgba_pre<rgba8, order_argb> blender_argb32_pre; //----blender_argb32_pre
|
|
typedef blender_rgba_pre<rgba8, order_abgr> blender_abgr32_pre; //----blender_abgr32_pre
|
|
typedef blender_rgba_pre<rgba8, order_bgra> blender_bgra32_pre; //----blender_bgra32_pre
|
|
|
|
typedef blender_rgba_plain<rgba8, order_rgba> blender_rgba32_plain; //----blender_rgba32_plain
|
|
typedef blender_rgba_plain<rgba8, order_argb> blender_argb32_plain; //----blender_argb32_plain
|
|
typedef blender_rgba_plain<rgba8, order_abgr> blender_abgr32_plain; //----blender_abgr32_plain
|
|
typedef blender_rgba_plain<rgba8, order_bgra> blender_bgra32_plain; //----blender_bgra32_plain
|
|
|
|
typedef blender_rgba<rgba16, order_rgba> blender_rgba64; //----blender_rgba64
|
|
typedef blender_rgba<rgba16, order_argb> blender_argb64; //----blender_argb64
|
|
typedef blender_rgba<rgba16, order_abgr> blender_abgr64; //----blender_abgr64
|
|
typedef blender_rgba<rgba16, order_bgra> blender_bgra64; //----blender_bgra64
|
|
|
|
typedef blender_rgba_pre<rgba16, order_rgba> blender_rgba64_pre; //----blender_rgba64_pre
|
|
typedef blender_rgba_pre<rgba16, order_argb> blender_argb64_pre; //----blender_argb64_pre
|
|
typedef blender_rgba_pre<rgba16, order_abgr> blender_abgr64_pre; //----blender_abgr64_pre
|
|
typedef blender_rgba_pre<rgba16, order_bgra> blender_bgra64_pre; //----blender_bgra64_pre
|
|
|
|
|
|
//-----------------------------------------------------------------------
|
|
typedef int32u pixel32_type;
|
|
typedef pixfmt_alpha_blend_rgba<blender_rgba32, rendering_buffer, pixel32_type> pixfmt_rgba32; //----pixfmt_rgba32
|
|
typedef pixfmt_alpha_blend_rgba<blender_argb32, rendering_buffer, pixel32_type> pixfmt_argb32; //----pixfmt_argb32
|
|
typedef pixfmt_alpha_blend_rgba<blender_abgr32, rendering_buffer, pixel32_type> pixfmt_abgr32; //----pixfmt_abgr32
|
|
typedef pixfmt_alpha_blend_rgba<blender_bgra32, rendering_buffer, pixel32_type> pixfmt_bgra32; //----pixfmt_bgra32
|
|
|
|
typedef pixfmt_alpha_blend_rgba<blender_rgba32_pre, rendering_buffer, pixel32_type> pixfmt_rgba32_pre; //----pixfmt_rgba32_pre
|
|
typedef pixfmt_alpha_blend_rgba<blender_argb32_pre, rendering_buffer, pixel32_type> pixfmt_argb32_pre; //----pixfmt_argb32_pre
|
|
typedef pixfmt_alpha_blend_rgba<blender_abgr32_pre, rendering_buffer, pixel32_type> pixfmt_abgr32_pre; //----pixfmt_abgr32_pre
|
|
typedef pixfmt_alpha_blend_rgba<blender_bgra32_pre, rendering_buffer, pixel32_type> pixfmt_bgra32_pre; //----pixfmt_bgra32_pre
|
|
|
|
typedef pixfmt_alpha_blend_rgba<blender_rgba32_plain, rendering_buffer, pixel32_type> pixfmt_rgba32_plain; //----pixfmt_rgba32_plain
|
|
typedef pixfmt_alpha_blend_rgba<blender_argb32_plain, rendering_buffer, pixel32_type> pixfmt_argb32_plain; //----pixfmt_argb32_plain
|
|
typedef pixfmt_alpha_blend_rgba<blender_abgr32_plain, rendering_buffer, pixel32_type> pixfmt_abgr32_plain; //----pixfmt_abgr32_plain
|
|
typedef pixfmt_alpha_blend_rgba<blender_bgra32_plain, rendering_buffer, pixel32_type> pixfmt_bgra32_plain; //----pixfmt_bgra32_plain
|
|
|
|
struct pixel64_type { int16u c[4]; };
|
|
typedef pixfmt_alpha_blend_rgba<blender_rgba64, rendering_buffer, pixel64_type> pixfmt_rgba64; //----pixfmt_rgba64
|
|
typedef pixfmt_alpha_blend_rgba<blender_argb64, rendering_buffer, pixel64_type> pixfmt_argb64; //----pixfmt_argb64
|
|
typedef pixfmt_alpha_blend_rgba<blender_abgr64, rendering_buffer, pixel64_type> pixfmt_abgr64; //----pixfmt_abgr64
|
|
typedef pixfmt_alpha_blend_rgba<blender_bgra64, rendering_buffer, pixel64_type> pixfmt_bgra64; //----pixfmt_bgra64
|
|
|
|
typedef pixfmt_alpha_blend_rgba<blender_rgba64_pre, rendering_buffer, pixel64_type> pixfmt_rgba64_pre; //----pixfmt_rgba64_pre
|
|
typedef pixfmt_alpha_blend_rgba<blender_argb64_pre, rendering_buffer, pixel64_type> pixfmt_argb64_pre; //----pixfmt_argb64_pre
|
|
typedef pixfmt_alpha_blend_rgba<blender_abgr64_pre, rendering_buffer, pixel64_type> pixfmt_abgr64_pre; //----pixfmt_abgr64_pre
|
|
typedef pixfmt_alpha_blend_rgba<blender_bgra64_pre, rendering_buffer, pixel64_type> pixfmt_bgra64_pre; //----pixfmt_bgra64_pre
|
|
}
|
|
|
|
#endif
|
|
|