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Diffstat (limited to 'agg/inc/agg_pixfmt_rgb.h')
-rwxr-xr-x | agg/inc/agg_pixfmt_rgb.h | 760 |
1 files changed, 760 insertions, 0 deletions
diff --git a/agg/inc/agg_pixfmt_rgb.h b/agg/inc/agg_pixfmt_rgb.h new file mode 100755 index 000000000000..436dfa4b284f --- /dev/null +++ b/agg/inc/agg_pixfmt_rgb.h @@ -0,0 +1,760 @@ +//---------------------------------------------------------------------------- +// 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 + |