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diff --git a/agg/inc/agg_pixfmt_rgb.h b/agg/inc/agg_pixfmt_rgb.h
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+++ b/agg/inc/agg_pixfmt_rgb.h
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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+//
+// Permission to copy, use, modify, sell and distribute this software
+// is granted provided this copyright notice appears in all copies.
+// This software is provided "as is" without express or implied
+// warranty, and with no claim as to its suitability for any purpose.
+//
+//----------------------------------------------------------------------------
+// Contact: mcseem@antigrain.com
+// mcseemagg@yahoo.com
+// http://www.antigrain.com
+//----------------------------------------------------------------------------
+//
+// Adaptation for high precision colors has been sponsored by
+// Liberty Technology Systems, Inc., visit http://lib-sys.com
+//
+// Liberty Technology Systems, Inc. is the provider of
+// PostScript and PDF technology for software developers.
+//
+//----------------------------------------------------------------------------
+
+#ifndef AGG_PIXFMT_RGB_INCLUDED
+#define AGG_PIXFMT_RGB_INCLUDED
+
+#include <string.h>
+#include "agg_basics.h"
+#include "agg_color_rgba.h"
+#include "agg_rendering_buffer.h"
+
+namespace agg
+{
+
+ //=====================================================apply_gamma_dir_rgb
+ template<class ColorT, class Order, class GammaLut> class apply_gamma_dir_rgb
+ {
+ public:
+ typedef typename ColorT::value_type value_type;
+
+ apply_gamma_dir_rgb(const GammaLut& gamma) : m_gamma(gamma) {}
+
+ AGG_INLINE void operator () (value_type* p)
+ {
+ p[Order::R] = m_gamma.dir(p[Order::R]);
+ p[Order::G] = m_gamma.dir(p[Order::G]);
+ p[Order::B] = m_gamma.dir(p[Order::B]);
+ }
+
+ private:
+ const GammaLut& m_gamma;
+ };
+
+
+
+ //=====================================================apply_gamma_inv_rgb
+ template<class ColorT, class Order, class GammaLut> class apply_gamma_inv_rgb
+ {
+ public:
+ typedef typename ColorT::value_type value_type;
+
+ apply_gamma_inv_rgb(const GammaLut& gamma) : m_gamma(gamma) {}
+
+ AGG_INLINE void operator () (value_type* p)
+ {
+ p[Order::R] = m_gamma.inv(p[Order::R]);
+ p[Order::G] = m_gamma.inv(p[Order::G]);
+ p[Order::B] = m_gamma.inv(p[Order::B]);
+ }
+
+ private:
+ const GammaLut& m_gamma;
+ };
+
+
+ //=========================================================blender_rgb
+ template<class ColorT, class Order> struct blender_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;
+ enum { base_shift = color_type::base_shift };
+
+ //--------------------------------------------------------------------
+ static AGG_INLINE void blend_pix(value_type* p,
+ unsigned cr, unsigned cg, unsigned cb,
+ unsigned alpha,
+ unsigned)
+ {
+ p[Order::R] += (value_type)(((cr - p[Order::R]) * alpha) >> base_shift);
+ p[Order::G] += (value_type)(((cg - p[Order::G]) * alpha) >> base_shift);
+ p[Order::B] += (value_type)(((cb - p[Order::B]) * alpha) >> base_shift);
+ }
+ };
+
+
+ //======================================================blender_rgb_pre
+ template<class ColorT, class Order> struct blender_rgb_pre
+ {
+ 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_shift = color_type::base_shift };
+
+ //--------------------------------------------------------------------
+ static AGG_INLINE void blend_pix(value_type* p,
+ unsigned cr, unsigned cg, unsigned cb,
+ unsigned alpha,
+ unsigned cover)
+ {
+ alpha = color_type::base_mask - alpha;
+ cover = (cover + 1) << (base_shift - 8);
+ p[Order::R] = (value_type)((p[Order::R] * alpha + cr * cover) >> base_shift);
+ p[Order::G] = (value_type)((p[Order::G] * alpha + cg * cover) >> base_shift);
+ p[Order::B] = (value_type)((p[Order::B] * alpha + cb * cover) >> base_shift);
+ }
+ };
+
+
+
+ //===================================================blender_rgb_gamma
+ template<class ColorT, class Order, class Gamma> class blender_rgb_gamma
+ {
+ public:
+ typedef ColorT color_type;
+ typedef Order order_type;
+ typedef Gamma gamma_type;
+ typedef typename color_type::value_type value_type;
+ typedef typename color_type::calc_type calc_type;
+ enum { base_shift = color_type::base_shift };
+
+ //--------------------------------------------------------------------
+ blender_rgb_gamma() : m_gamma(0) {}
+ void gamma(const gamma_type& g) { m_gamma = &g; }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void blend_pix(value_type* p,
+ unsigned cr, unsigned cg, unsigned cb,
+ unsigned alpha,
+ unsigned)
+ {
+ calc_type r = m_gamma->dir(p[Order::R]);
+ calc_type g = m_gamma->dir(p[Order::G]);
+ calc_type b = m_gamma->dir(p[Order::B]);
+ p[Order::R] = m_gamma->inv((((m_gamma->dir(cr) - r) * alpha) >> base_shift) + r);
+ p[Order::G] = m_gamma->inv((((m_gamma->dir(cg) - g) * alpha) >> base_shift) + g);
+ p[Order::B] = m_gamma->inv((((m_gamma->dir(cb) - b) * alpha) >> base_shift) + b);
+ }
+
+ private:
+ const gamma_type* m_gamma;
+ };
+
+
+
+
+ //==================================================pixel_formats_rgb
+ template<class Blender> class pixel_formats_rgb
+ {
+ public:
+ typedef rendering_buffer::row_data row_data;
+ 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_shift = color_type::base_shift,
+ base_size = color_type::base_size,
+ base_mask = color_type::base_mask
+ };
+
+ private:
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_or_blend_pix(value_type* p,
+ const color_type& c,
+ unsigned cover)
+ {
+ if (c.a)
+ {
+ calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8;
+ if(alpha == base_mask)
+ {
+ p[order_type::R] = c.r;
+ p[order_type::G] = c.g;
+ p[order_type::B] = c.b;
+ }
+ else
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
+ }
+ }
+ }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_or_blend_opaque_pix(value_type* p,
+ const color_type& c,
+ unsigned cover)
+ {
+ if(cover == 255)
+ {
+ p[order_type::R] = c.r;
+ p[order_type::G] = c.g;
+ p[order_type::B] = c.b;
+ }
+ else
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, (cover + 1) << (base_shift - 8), cover);
+ }
+ }
+
+
+ public:
+ //--------------------------------------------------------------------
+ pixel_formats_rgb(rendering_buffer& rb) :
+ m_rbuf(&rb)
+ {}
+
+ //--------------------------------------------------------------------
+ Blender& blender() { return m_blender; }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE unsigned width() const { return m_rbuf->width(); }
+ AGG_INLINE unsigned height() const { return m_rbuf->height(); }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE color_type pixel(int x, int y) const
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ return color_type(p[order_type::R],
+ p[order_type::G],
+ p[order_type::B]);
+ }
+
+ //--------------------------------------------------------------------
+ row_data span(int x, int y) const
+ {
+ return row_data(x,
+ width() - 1,
+ m_rbuf->row(y) + x * 3 * sizeof(value_type));
+ }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_pixel(int x, int y, const color_type& c)
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ p[order_type::R] = c.r;
+ p[order_type::G] = c.g;
+ p[order_type::B] = c.b;
+ }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void blend_pixel(int x, int y, const color_type& c, int8u cover)
+ {
+ copy_or_blend_pix((value_type*)m_rbuf->row(y) + x + x + x, c, cover);
+ }
+
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_hline(int x, int y,
+ unsigned len,
+ const color_type& c)
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ do
+ {
+ p[order_type::R] = c.r;
+ p[order_type::G] = c.g;
+ p[order_type::B] = c.b;
+ p += 3;
+ }
+ while(--len);
+ }
+
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_vline(int x, int y,
+ unsigned len,
+ const color_type& c)
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ do
+ {
+ p[order_type::R] = c.r;
+ p[order_type::G] = c.g;
+ p[order_type::B] = c.b;
+ p = (value_type*)m_rbuf->next_row(p);
+ }
+ 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(y) + x + x + x;
+ calc_type alpha = (calc_type(c.a) * (calc_type(cover) + 1)) >> 8;
+ if(alpha == base_mask)
+ {
+ do
+ {
+ p[order_type::R] = c.r;
+ p[order_type::G] = c.g;
+ p[order_type::B] = c.b;
+ p += 3;
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
+ p += 3;
+ }
+ while(--len);
+ }
+ }
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_vline(int x, int y,
+ unsigned len,
+ const color_type& c,
+ int8u cover)
+ {
+ if (c.a)
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8;
+ if(alpha == base_mask)
+ {
+ do
+ {
+ p[order_type::R] = c.r;
+ p[order_type::G] = c.g;
+ p[order_type::B] = c.b;
+ p = (value_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
+ p = (value_type*)m_rbuf->next_row(p);
+ }
+ 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(y) + x + x + x;
+ 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;
+ }
+ else
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, *covers);
+ }
+ p += 3;
+ ++covers;
+ }
+ while(--len);
+ }
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_solid_vspan(int x, int y,
+ unsigned len,
+ const color_type& c,
+ const int8u* covers)
+ {
+ if (c.a)
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ 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;
+ }
+ else
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, *covers);
+ }
+ p = (value_type*)m_rbuf->next_row(p);
+ ++covers;
+ }
+ 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(y) + x + x + x;
+ if(covers)
+ {
+ do
+ {
+ copy_or_blend_pix(p, *colors++, *covers++);
+ p += 3;
+ }
+ while(--len);
+ }
+ else
+ {
+ if(cover == 255)
+ {
+ do
+ {
+ if(colors->a == base_mask)
+ {
+ p[order_type::R] = colors->r;
+ p[order_type::G] = colors->g;
+ p[order_type::B] = colors->b;
+ }
+ else
+ {
+ copy_or_blend_pix(p, *colors, 255);
+ }
+ p += 3;
+ ++colors;
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ copy_or_blend_pix(p, *colors++, cover);
+ p += 3;
+ }
+ while(--len);
+ }
+ }
+ }
+
+
+
+ //--------------------------------------------------------------------
+ void blend_color_vspan(int x, int y,
+ unsigned len,
+ const color_type* colors,
+ const int8u* covers,
+ int8u cover)
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ if(covers)
+ {
+ do
+ {
+ copy_or_blend_pix(p, *colors++, *covers++);
+ p = (value_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+ else
+ {
+ if(cover == 255)
+ {
+ do
+ {
+ if(colors->a == base_mask)
+ {
+ p[order_type::R] = colors->r;
+ p[order_type::G] = colors->g;
+ p[order_type::B] = colors->b;
+ }
+ else
+ {
+ copy_or_blend_pix(p, *colors, 255);
+ }
+ p = (value_type*)m_rbuf->next_row(p);
+ ++colors;
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ copy_or_blend_pix(p, *colors++, cover);
+ p = (value_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+ }
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_opaque_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(y) + x + x + x;
+ if(covers)
+ {
+ do
+ {
+ copy_or_blend_opaque_pix(p, *colors++, *covers++);
+ p += 3;
+ }
+ while(--len);
+ }
+ else
+ {
+ if(cover == 255)
+ {
+ do
+ {
+ p[order_type::R] = colors->r;
+ p[order_type::G] = colors->g;
+ p[order_type::B] = colors->b;
+ p += 3;
+ ++colors;
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ copy_or_blend_opaque_pix(p, *colors++, cover);
+ p += 3;
+ }
+ while(--len);
+ }
+ }
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_opaque_color_vspan(int x, int y,
+ unsigned len,
+ const color_type* colors,
+ const int8u* covers,
+ int8u cover)
+ {
+ value_type* p = (value_type*)m_rbuf->row(y) + x + x + x;
+ if(covers)
+ {
+ do
+ {
+ copy_or_blend_opaque_pix(p, *colors++, *covers++);
+ p = (value_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+ else
+ {
+ if(cover == 255)
+ {
+ do
+ {
+ p[order_type::R] = colors->r;
+ p[order_type::G] = colors->g;
+ p[order_type::B] = colors->b;
+ p = (value_type*)m_rbuf->next_row(p);
+ ++colors;
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ copy_or_blend_opaque_pix(p, *colors++, cover);
+ p = (value_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+ }
+ }
+
+ //--------------------------------------------------------------------
+ template<class Function> void for_each_pixel(Function f)
+ {
+ unsigned y;
+ for(y = 0; y < height(); ++y)
+ {
+ unsigned len = width();
+ value_type* p = (value_type*)m_rbuf->row(y);
+ do
+ {
+ f(p);
+ p += 3;
+ }
+ while(--len);
+ }
+ }
+
+ //--------------------------------------------------------------------
+ template<class GammaLut> void apply_gamma_dir(const GammaLut& g)
+ {
+ for_each_pixel(apply_gamma_dir_rgb<color_type, order_type, GammaLut>(g));
+ }
+
+ //--------------------------------------------------------------------
+ template<class GammaLut> void apply_gamma_inv(const GammaLut& g)
+ {
+ for_each_pixel(apply_gamma_inv_rgb<color_type, order_type, GammaLut>(g));
+ }
+
+ //--------------------------------------------------------------------
+ void copy_from(const rendering_buffer& from,
+ int xdst, int ydst,
+ int xsrc, int ysrc,
+ unsigned len)
+ {
+ memmove((value_type*)m_rbuf->row(ydst) + xdst * 3,
+ (const value_type*)from.row(ysrc) + xsrc * 3,
+ sizeof(value_type) * 3 * len);
+ }
+
+
+ //--------------------------------------------------------------------
+ template<class SrcPixelFormatRenderer>
+ void blend_from(const SrcPixelFormatRenderer& from,
+ const int8u* psrc_,
+ int xdst, int ydst,
+ int xsrc, int ysrc,
+ unsigned len)
+ {
+ typedef typename SrcPixelFormatRenderer::order_type src_order;
+
+ const value_type* psrc = (const value_type*)psrc_;
+ value_type* pdst = (value_type*)m_rbuf->row(ydst) + xdst * 3;
+ do
+ {
+ value_type alpha = psrc[src_order::A];
+ if(alpha)
+ {
+ if(alpha == base_mask)
+ {
+ pdst[order_type::R] = psrc[src_order::R];
+ pdst[order_type::G] = psrc[src_order::G];
+ pdst[order_type::B] = psrc[src_order::B];
+ }
+ else
+ {
+ m_blender.blend_pix(pdst,
+ psrc[src_order::R],
+ psrc[src_order::G],
+ psrc[src_order::B],
+ alpha,
+ 255);
+ }
+ }
+ psrc += 4;
+ pdst += 3;
+ }
+ while(--len);
+ }
+
+ private:
+ rendering_buffer* m_rbuf;
+ Blender m_blender;
+ };
+
+ typedef pixel_formats_rgb<blender_rgb<rgba8, order_rgb> > pixfmt_rgb24; //----pixfmt_rgb24
+ typedef pixel_formats_rgb<blender_rgb<rgba8, order_bgr> > pixfmt_bgr24; //----pixfmt_bgr24
+ typedef pixel_formats_rgb<blender_rgb<rgba16, order_rgb> > pixfmt_rgb48; //----pixfmt_rgb48
+ typedef pixel_formats_rgb<blender_rgb<rgba16, order_bgr> > pixfmt_bgr48; //----pixfmt_bgr48
+
+ typedef pixel_formats_rgb<blender_rgb_pre<rgba8, order_rgb> > pixfmt_rgb24_pre; //----pixfmt_rgb24_pre
+ typedef pixel_formats_rgb<blender_rgb_pre<rgba8, order_bgr> > pixfmt_bgr24_pre; //----pixfmt_bgr24_pre
+ typedef pixel_formats_rgb<blender_rgb_pre<rgba16, order_rgb> > pixfmt_rgb48_pre; //----pixfmt_rgb48_pre
+ typedef pixel_formats_rgb<blender_rgb_pre<rgba16, order_bgr> > pixfmt_bgr48_pre; //----pixfmt_bgr48_pre
+
+ //-----------------------------------------------------pixfmt_rgb24_gamma
+ template<class Gamma> class pixfmt_rgb24_gamma :
+ public pixel_formats_rgb<blender_rgb_gamma<rgba8, order_rgb, Gamma> >
+ {
+ public:
+ pixfmt_rgb24_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb<blender_rgb_gamma<rgba8, order_rgb, Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+ //-----------------------------------------------------pixfmt_bgr24_gamma
+ template<class Gamma> class pixfmt_bgr24_gamma :
+ public pixel_formats_rgb<blender_rgb_gamma<rgba8, order_bgr, Gamma> >
+ {
+ public:
+ pixfmt_bgr24_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb<blender_rgb_gamma<rgba8, order_bgr, Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+ //-----------------------------------------------------pixfmt_rgb48_gamma
+ template<class Gamma> class pixfmt_rgb48_gamma :
+ public pixel_formats_rgb<blender_rgb_gamma<rgba16, order_rgb, Gamma> >
+ {
+ public:
+ pixfmt_rgb48_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb<blender_rgb_gamma<rgba16, order_rgb, Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+ //-----------------------------------------------------pixfmt_bgr48_gamma
+ template<class Gamma> class pixfmt_bgr48_gamma :
+ public pixel_formats_rgb<blender_rgb_gamma<rgba16, order_bgr, Gamma> >
+ {
+ public:
+ pixfmt_bgr48_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb<blender_rgb_gamma<rgba16, order_bgr, Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+
+}
+
+#endif
+
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