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Diffstat (limited to 'agg/inc/agg_pixfmt_rgba.h')
| -rwxr-xr-x | agg/inc/agg_pixfmt_rgba.h | 1312 |
1 files changed, 1312 insertions, 0 deletions
diff --git a/agg/inc/agg_pixfmt_rgba.h b/agg/inc/agg_pixfmt_rgba.h new file mode 100755 index 000000000000..3716877e04f7 --- /dev/null +++ b/agg/inc/agg_pixfmt_rgba.h @@ -0,0 +1,1312 @@ +//---------------------------------------------------------------------------- +// 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_RGBA_INCLUDED +#define AGG_PIXFMT_RGBA_INCLUDED + +#include <string.h> +#include "agg_basics.h" +#include "agg_color_rgba.h" +#include "agg_rendering_buffer.h" + +namespace agg +{ + + //=========================================================multiplier_rgba + template<class ColorT, class Order> struct multiplier_rgba + { + typedef typename ColorT::value_type value_type; + typedef typename ColorT::calc_type calc_type; + + //-------------------------------------------------------------------- + static AGG_INLINE void premultiply(value_type* p) + { + calc_type a = p[Order::A]; + if(a < ColorT::base_mask) + { + if(a == 0) + { + p[Order::R] = p[Order::G] = p[Order::B] = 0; + return; + } + p[Order::R] = value_type((p[Order::R] * a) >> ColorT::base_shift); + p[Order::G] = value_type((p[Order::G] * a) >> ColorT::base_shift); + p[Order::B] = value_type((p[Order::B] * a) >> ColorT::base_shift); + } + } + + + //-------------------------------------------------------------------- + static AGG_INLINE void demultiply(value_type* p) + { + calc_type a = p[Order::A]; + if(a < ColorT::base_mask) + { + if(a == 0) + { + p[Order::R] = p[Order::G] = p[Order::B] = 0; + return; + } + calc_type r = (calc_type(p[Order::R]) * ColorT::base_mask) / a; + calc_type g = (calc_type(p[Order::G]) * ColorT::base_mask) / a; + calc_type b = (calc_type(p[Order::B]) * ColorT::base_mask) / a; + p[Order::R] = value_type((r > ColorT::base_mask) ? ColorT::base_mask : r); + p[Order::G] = value_type((g > ColorT::base_mask) ? ColorT::base_mask : g); + p[Order::B] = value_type((b > ColorT::base_mask) ? ColorT::base_mask : b); + } + } + }; + + + //=====================================================apply_gamma_dir_rgba + template<class ColorT, class Order, class GammaLut> class apply_gamma_dir_rgba + { + public: + typedef typename ColorT::value_type value_type; + + apply_gamma_dir_rgba(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_rgba + template<class ColorT, class Order, class GammaLut> class apply_gamma_inv_rgba + { + public: + typedef typename ColorT::value_type value_type; + + apply_gamma_inv_rgba(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_rgba + template<class ColorT, class Order, class PixelT> struct blender_rgba + { + typedef ColorT color_type; + typedef PixelT pixel_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, + base_mask = color_type::base_mask + }; + + //-------------------------------------------------------------------- + static AGG_INLINE void blend_pix(value_type* p, + unsigned cr, unsigned cg, unsigned cb, + unsigned alpha, + unsigned) + { + calc_type r = p[Order::R]; + calc_type g = p[Order::G]; + calc_type b = p[Order::B]; + calc_type a = p[Order::A]; + p[Order::R] = (value_type)(((cr - r) * alpha + (r << base_shift)) >> base_shift); + p[Order::G] = (value_type)(((cg - g) * alpha + (g << base_shift)) >> base_shift); + p[Order::B] = (value_type)(((cb - b) * alpha + (b << base_shift)) >> base_shift); + p[Order::A] = (value_type)((alpha + a) - ((alpha * a + base_mask) >> base_shift)); + } + }; + + + //=========================================================blender_rgba_pre + template<class ColorT, class Order, class PixelT> struct blender_rgba_pre + { + typedef ColorT color_type; + typedef PixelT pixel_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, + base_mask = color_type::base_mask + }; + + //-------------------------------------------------------------------- + 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); + p[Order::A] = (value_type)(base_mask - ((alpha * (base_mask - p[Order::A])) >> base_shift)); + } + }; + + + + //======================================================blender_rgba_plain + template<class ColorT, class Order, class PixelT> struct blender_rgba_plain + { + typedef ColorT color_type; + typedef PixelT pixel_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) + { + if(alpha == 0) return; + calc_type a = p[Order::A]; + calc_type r = p[Order::R] * a; + calc_type g = p[Order::G] * a; + calc_type b = p[Order::B] * a; + a = ((alpha + a) << base_shift) - alpha * a; + p[Order::A] = (value_type)(a >> base_shift); + p[Order::R] = (value_type)((((cr << base_shift) - r) * alpha + (r << base_shift)) / a); + p[Order::G] = (value_type)((((cg << base_shift) - g) * alpha + (g << base_shift)) / a); + p[Order::B] = (value_type)((((cb << base_shift) - b) * alpha + (b << base_shift)) / a); + } + }; + + + //====================================================blender_rgba_wrapper + template<class Blender> struct blender_rgba_wrapper + { + typedef typename Blender::color_type color_type; + typedef typename Blender::order_type order_type; + typedef typename Blender::pixel_type pixel_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 + }; + + //-------------------------------------------------------------------- + static AGG_INLINE void blend_pix(value_type* p, + unsigned cr, unsigned cg, unsigned cb, + unsigned alpha, + unsigned cover) + { + Blender::blend_pix(p, cr, cg, cb, alpha, cover); + } + + //-------------------------------------------------------------------- + static 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; + p[order_type::A] = c.a; + } + else + { + Blender::blend_pix(p, c.r, c.g, c.b, alpha, cover); + } + } + } + + //-------------------------------------------------------------------- + static 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; + p[order_type::A] = base_mask; + } + else + { + Blender::blend_pix(p, c.r, c.g, c.b, (cover + 1) << (base_shift - 8), cover); + } + } + }; + + + + + //=======================================================pixel_formats_rgba + template<class Blender> class pixel_formats_rgba + { + public: + typedef rendering_buffer::row_data row_data; + typedef typename Blender::color_type color_type; + typedef typename Blender::order_type order_type; + typedef typename Blender::pixel_type pixel_type; + typedef typename color_type::value_type value_type; + typedef typename color_type::calc_type calc_type; + typedef blender_rgba_wrapper<Blender> blender_type; + enum + { + base_shift = color_type::base_shift, + base_size = color_type::base_size, + base_mask = color_type::base_mask + }; + + //-------------------------------------------------------------------- + pixel_formats_rgba(rendering_buffer& rb) : + m_rbuf(&rb) + {} + + //-------------------------------------------------------------------- + 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 + { + const value_type* p = (value_type*)m_rbuf->row(y) + (x << 2); + return color_type(p[order_type::R], + p[order_type::G], + p[order_type::B], + p[order_type::A]); + } + + //-------------------------------------------------------------------- + row_data span(int x, int y) const + { + return row_data(x, + width() - 1, + m_rbuf->row(y) + x * 4 * 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 << 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) + { + blender_type::copy_or_blend_pix((value_type*)m_rbuf->row(y) + (x << 2), 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 << 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) + { + value_type* p = (value_type*)m_rbuf->row(y) + (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 = (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 << 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 + { + 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 = (value_type*)m_rbuf->row(y) + (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 = (value_type*)m_rbuf->next_row(p); + } + while(--len); + } + else + { + do + { + blender_type::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 << 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) + { + value_type* p = (value_type*)m_rbuf->row(y) + (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 = (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 << 2); + if(covers) + { + do + { + blender_type::copy_or_blend_pix(p, *colors++, *covers++); + p += 4; + } + 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; + p[order_type::A] = base_mask; + } + else + { + blender_type::copy_or_blend_pix(p, *colors, 255); + } + p += 4; + ++colors; + } + while(--len); + } + else + { + do + { + blender_type::copy_or_blend_pix(p, *colors++, cover); + p += 4; + } + 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 << 2); + if(covers) + { + do + { + blender_type::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; + p[order_type::A] = base_mask; + } + else + { + blender_type::copy_or_blend_pix(p, *colors, 255); + } + p = (value_type*)m_rbuf->next_row(p); + ++colors; + } + while(--len); + } + else + { + do + { + blender_type::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 << 2); + if(covers) + { + do + { + blender_type::copy_or_blend_opaque_pix(p, *colors++, *covers++); + p += 4; + } + 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[order_type::A] = base_mask; + p += 4; + ++colors; + } + while(--len); + } + else + { + do + { + blender_type::copy_or_blend_opaque_pix(p, *colors++, cover); + p += 4; + } + 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 << 2); + if(covers) + { + do + { + blender_type::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[order_type::A] = base_mask; + p = (value_type*)m_rbuf->next_row(p); + ++colors; + } + while(--len); + } + else + { + do + { + blender_type::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 += 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)); + } + + //-------------------------------------------------------------------- + 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 * 4, + (value_type*)from.row(ysrc) + xsrc * 4, + sizeof(value_type) * 4 * 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 << 2); + int incp = 4; + if(xdst > xsrc) + { + psrc += (len-1) << 2; + pdst += (len-1) << 2; + incp = -4; + } + 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]; + pdst[order_type::A] = psrc[src_order::A]; + } + else + { + blender_type::blend_pix(pdst, + psrc[src_order::R], + psrc[src_order::G], + psrc[src_order::B], + alpha, + 255); + } + } + psrc += incp; + pdst += incp; + } + while(--len); + } + + private: + rendering_buffer* m_rbuf; + }; + + + + + //================================================pixfmt_custom_rbuf_rgba + template<class Blender, class RenBuf> class pixfmt_custom_rbuf_rgba + { + public: + typedef typename Blender::color_type color_type; + typedef typename Blender::order_type order_type; + typedef typename Blender::pixel_type pixel_type; + typedef typename color_type::value_type value_type; + typedef typename color_type::calc_type calc_type; + typedef blender_rgba_wrapper<Blender> blender_type; + enum + { + base_shift = color_type::base_shift, + base_size = color_type::base_size, + base_mask = color_type::base_mask + }; + + typedef RenBuf rbuf_type; + typedef typename rbuf_type::row_data row_data; + + //-------------------------------------------------------------------- + pixfmt_custom_rbuf_rgba(rbuf_type& rb) : m_rbuf(&rb) {} + + //-------------------------------------------------------------------- + unsigned width() const { return m_rbuf->width(); } + unsigned height() const { return m_rbuf->height(); } + + //-------------------------------------------------------------------- + color_type pixel(int x, int y) const + { + const value_type* p = m_rbuf->span_ptr(x, y, 1); + return p ? color_type(p[order_type::R], + p[order_type::G], + p[order_type::B], + p[order_type::A]) : + color_type::no_color(); + } + + //-------------------------------------------------------------------- + row_data span(int x, int y) const + { + return m_rbuf->span(x, y); + } + + //-------------------------------------------------------------------- + void copy_pixel(int x, int y, const color_type& c) + { + int8u* p = m_rbuf->span_ptr(x, y, 1); + p[order_type::R] = c.r; + p[order_type::G] = c.g; + p[order_type::B] = c.b; + p[order_type::A] = c.b; + } + + //-------------------------------------------------------------------- + void blend_pixel(int x, int y, const color_type& c, int8u cover) + { + blender_type::copy_or_blend_pix((value_type*)m_rbuf->span_ptr(x, y, 1), c, cover); + } + + //-------------------------------------------------------------------- + void copy_hline(int x, int y, unsigned len, const color_type& c) + { + value_type* p = (value_type*)m_rbuf->span_ptr(x, y, len); + 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); + } + + //-------------------------------------------------------------------- + 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 + { + *(pixel_type*)(m_rbuf->span_ptr(x, y++, 1)) = 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->span_ptr(x, y, len); + 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 + { + 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) + { + 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*)(m_rbuf->span_ptr(x, y++, 1)) = v; + } + while(--len); + } + else + { + do + { + blender_type::blend_pix(*(pixel_type*)m_rbuf->span_ptr(x, y++, 1), + 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) + { + value_type* p = (value_type*)m_rbuf->span_ptr(x, y, len); + do + { + blender_type::copy_or_blend_pix(p, c, *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::copy_or_blend_pix((value_type*)m_rbuf->span_ptr(x, y++, 1), + c, + *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->span_ptr(x, y, len); + do + { + blender_type::copy_or_blend_pix(p, *colors++, covers ? *covers++ : cover); + p += 4; + } + while(--len); + } + + + //-------------------------------------------------------------------- + void blend_color_vspan(int x, int y, unsigned len, + const color_type* colors, + const int8u* covers, + int8u cover) + { + do + { + blender_type::copy_or_blend_pix((value_type*)m_rbuf->span_ptr(x, y++, 1), + *colors++, covers ? *covers++ : cover); + } + 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->span_ptr(x, y, len); + if(covers) + { + do + { + blender_type::copy_or_blend_opaque_pix(p, *colors++, *covers++); + p += 4; + } + 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[order_type::A] = base_mask; + p += 4; + ++colors; + } + while(--len); + } + else + { + do + { + blender_type::copy_or_blend_opaque_pix(p, *colors++, cover); + p += 4; + } + while(--len); + } + } + } + + + //-------------------------------------------------------------------- + void blend_opaque_color_vspan(int x, int y, + unsigned len, + const color_type* colors, + const int8u* covers, + int8u cover) + { + if(covers) + { + do + { + blender_type::copy_or_blend_opaque_pix((value_type*)m_rbuf->span_ptr(x, y++, 1), + *colors++, *covers++); + } + while(--len); + } + else + { + if(cover == 255) + { + do + { + value_type* p = (value_type*)m_rbuf->span_ptr(x, y++, 1); + p[order_type::R] = colors->r; + p[order_type::G] = colors->g; + p[order_type::B] = colors->b; + p[order_type::A] = base_mask; + ++colors; + } + while(--len); + } + else + { + do + { + blender_type::copy_or_blend_opaque_pix((value_type*)m_rbuf->span_ptr(x, y++, 1), + *colors++, cover); + } + while(--len); + } + } + } + + + + //-------------------------------------------------------------------- + template<class Function> void for_each_pixel(Function f) + { + unsigned y; + for(y = 0; y < height(); ++y) + { + row_data sp = span(0, y); + if(sp.ptr) + { + value_type* p = (value_type*)sp.ptr; + while(sp.x1 <= sp.x2) + { + f(p); + p += 4; + ++sp.x1; + } + } + } + } + + + //-------------------------------------------------------------------- + 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(ysrc); + if(p) + { + p += xsrc * 4 * sizeof(value_type); + memmove(m_rbuf->span_ptr(xdst, ydst, len), + p, + len * 4 * sizeof(value_type)); + } + } + + + + //-------------------------------------------------------------------- + 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->span_ptr(xdst, ydst, len); + + int incp = 4; + if(xdst > xsrc) + { + psrc += (len-1) << 2; + pdst += (len-1) << 2; + incp = -4; + } + 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]; + pdst[order_type::A] = psrc[src_order::A]; + } + else + { + blender_type::blend_pix(pdst, + psrc[src_order::R], + psrc[src_order::G], + psrc[src_order::B], + alpha, + 255); + } + } + psrc += incp; + pdst += incp; + } + while(--len); + } + + + private: + rbuf_type* m_rbuf; + }; + + + + + + + + //----------------------------------------------------------------------- + typedef blender_rgba<rgba8, order_rgba, int32u> blender_rgba32; //----blender_rgba32 + typedef blender_rgba<rgba8, order_argb, int32u> blender_argb32; //----blender_argb32 + typedef blender_rgba<rgba8, order_abgr, int32u> blender_abgr32; //----blender_abgr32 + typedef blender_rgba<rgba8, order_bgra, int32u> blender_bgra32; //----blender_bgra32 + + typedef blender_rgba_pre<rgba8, order_rgba, int32u> blender_rgba32_pre; //----blender_rgba32_pre + typedef blender_rgba_pre<rgba8, order_argb, int32u> blender_argb32_pre; //----blender_argb32_pre + typedef blender_rgba_pre<rgba8, order_abgr, int32u> blender_abgr32_pre; //----blender_abgr32_pre + typedef blender_rgba_pre<rgba8, order_bgra, int32u> blender_bgra32_pre; //----blender_bgra32_pre + + typedef blender_rgba_plain<rgba8, order_rgba, int32u> blender_rgba32_plain; //----blender_rgba32_plain + typedef blender_rgba_plain<rgba8, order_argb, int32u> blender_argb32_plain; //----blender_argb32_plain + typedef blender_rgba_plain<rgba8, order_abgr, int32u> blender_abgr32_plain; //----blender_abgr32_plain + typedef blender_rgba_plain<rgba8, order_bgra, int32u> blender_bgra32_plain; //----blender_bgra32_plain + + struct pixel64_type { int16u c[4]; }; + typedef blender_rgba<rgba16, order_rgba, pixel64_type> blender_rgba64; //----blender_rgba64 + typedef blender_rgba<rgba16, order_argb, pixel64_type> blender_argb64; //----blender_argb64 + typedef blender_rgba<rgba16, order_abgr, pixel64_type> blender_abgr64; //----blender_abgr64 + typedef blender_rgba<rgba16, order_bgra, pixel64_type> blender_bgra64; //----blender_bgra64 + + typedef blender_rgba_pre<rgba16, order_rgba, pixel64_type> blender_rgba64_pre; //----blender_rgba64_pre + typedef blender_rgba_pre<rgba16, order_argb, pixel64_type> blender_argb64_pre; //----blender_argb64_pre + typedef blender_rgba_pre<rgba16, order_abgr, pixel64_type> blender_abgr64_pre; //----blender_abgr64_pre + typedef blender_rgba_pre<rgba16, order_bgra, pixel64_type> blender_bgra64_pre; //----blender_bgra64_pre + + + //----------------------------------------------------------------------- + typedef pixel_formats_rgba<blender_rgba32> pixfmt_rgba32; //----pixfmt_rgba32 + typedef pixel_formats_rgba<blender_argb32> pixfmt_argb32; //----pixfmt_argb32 + typedef pixel_formats_rgba<blender_abgr32> pixfmt_abgr32; //----pixfmt_abgr32 + typedef pixel_formats_rgba<blender_bgra32> pixfmt_bgra32; //----pixfmt_bgra32 + + typedef pixel_formats_rgba<blender_rgba32_pre> pixfmt_rgba32_pre; //----pixfmt_rgba32_pre + typedef pixel_formats_rgba<blender_argb32_pre> pixfmt_argb32_pre; //----pixfmt_argb32_pre + typedef pixel_formats_rgba<blender_abgr32_pre> pixfmt_abgr32_pre; //----pixfmt_abgr32_pre + typedef pixel_formats_rgba<blender_bgra32_pre> pixfmt_bgra32_pre; //----pixfmt_bgra32_pre + + typedef pixel_formats_rgba<blender_rgba32_plain> pixfmt_rgba32_plain; //----pixfmt_rgba32_plain + typedef pixel_formats_rgba<blender_argb32_plain> pixfmt_argb32_plain; //----pixfmt_argb32_plain + typedef pixel_formats_rgba<blender_abgr32_plain> pixfmt_abgr32_plain; //----pixfmt_abgr32_plain + typedef pixel_formats_rgba<blender_bgra32_plain> pixfmt_bgra32_plain; //----pixfmt_bgra32_plain + + typedef pixel_formats_rgba<blender_rgba64> pixfmt_rgba64; //----pixfmt_rgba64 + typedef pixel_formats_rgba<blender_argb64> pixfmt_argb64; //----pixfmt_argb64 + typedef pixel_formats_rgba<blender_abgr64> pixfmt_abgr64; //----pixfmt_abgr64 + typedef pixel_formats_rgba<blender_bgra64> pixfmt_bgra64; //----pixfmt_bgra64 + + typedef pixel_formats_rgba<blender_rgba64_pre> pixfmt_rgba64_pre; //----pixfmt_rgba64_pre + typedef pixel_formats_rgba<blender_argb64_pre> pixfmt_argb64_pre; //----pixfmt_argb64_pre + typedef pixel_formats_rgba<blender_abgr64_pre> pixfmt_abgr64_pre; //----pixfmt_abgr64_pre + typedef pixel_formats_rgba<blender_bgra64_pre> pixfmt_bgra64_pre; //----pixfmt_bgra64_pre +} + +#endif + |