//---------------------------------------------------------------------------- // 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_GRAY_INCLUDED #define AGG_PIXFMT_GRAY_INCLUDED #include #include "agg_basics.h" #include "agg_color_gray.h" #include "agg_rendering_buffer.h" namespace agg { //============================================================blender_gray template struct blender_gray { typedef ColorT color_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 cv, unsigned alpha, unsigned) { *p = (value_type)((((cv - calc_type(*p)) * alpha) + (calc_type(*p) << base_shift)) >> base_shift); } }; //======================================================blender_gray_pre template struct blender_gray_pre { typedef ColorT color_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 cv, unsigned alpha, unsigned cover) { alpha = color_type::base_mask - alpha; cover = (cover + 1) << (base_shift - 8); *p = (value_type)((*p * alpha + cv * cover) >> base_shift); } }; //=====================================================apply_gamma_dir_gray template class apply_gamma_dir_gray { public: typedef typename ColorT::value_type value_type; apply_gamma_dir_gray(const GammaLut& gamma) : m_gamma(gamma) {} AGG_INLINE void operator () (value_type* p) { *p = m_gamma.dir(*p); } private: const GammaLut& m_gamma; }; //=====================================================apply_gamma_inv_gray template class apply_gamma_inv_gray { public: typedef typename ColorT::value_type value_type; apply_gamma_inv_gray(const GammaLut& gamma) : m_gamma(gamma) {} AGG_INLINE void operator () (value_type* p) { *p = m_gamma.inv(*p); } private: const GammaLut& m_gamma; }; //======================================================pixel_formats_gray template class pixel_formats_gray { public: typedef rendering_buffer::row_data row_data; typedef typename Blender::color_type color_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: //-------------------------------------------------------------------- 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 = c.v; } else { Blender::blend_pix(p, c.v, alpha, cover); } } } //-------------------------------------------------------------------- static AGG_INLINE void copy_or_blend_opaque_pix(value_type* p, const color_type& c, unsigned cover) { if(cover == 255) { *p = c.v; } else { Blender::blend_pix(p, c.v, (cover + 1) << (base_shift - 8), cover); } } public: //-------------------------------------------------------------------- pixel_formats_gray(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 { value_type* p = (value_type*)m_rbuf->row(y) + x * Step + Offset; return color_type(*p); } //-------------------------------------------------------------------- row_data span(int x, int y) const { return row_data(x, width() - 1, m_rbuf->row(y) + x * Step * sizeof(value_type) + Offset * sizeof(value_type)); } //-------------------------------------------------------------------- AGG_INLINE void copy_pixel(int x, int y, const color_type& c) { *((value_type*)m_rbuf->row(y) + x * Step + Offset) = c.v; } //-------------------------------------------------------------------- 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 * Step + Offset, 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 * Step + Offset; do { *p = c.v; p += Step; } 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 * Step + Offset; do { *p = c.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 * Step + Offset; calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8; if(alpha == base_mask) { do { *p = c.v; p += Step; } while(--len); } else { do { Blender::blend_pix(p, c.v, alpha, cover); p += Step; } 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 * Step + Offset; calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8; if(alpha == base_mask) { do { *p = c.v; p = (value_type*)m_rbuf->next_row(p); } while(--len); } else { do { Blender::blend_pix(p, c.v, 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 * Step + Offset; do { calc_type alpha = (calc_type(c.a) * (calc_type(*covers) + 1)) >> 8; if(alpha == base_mask) { *p = c.v; } else { Blender::blend_pix(p, c.v, alpha, *covers); } p += Step; ++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 * Step + Offset; do { calc_type alpha = (calc_type(c.a) * (calc_type(*covers) + 1)) >> 8; if(alpha == base_mask) { *p = c.v; } else { Blender::blend_pix(p, c.v, 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 * Step + Offset; if(covers) { do { copy_or_blend_pix(p, *colors++, *covers++); p += Step; } while(--len); } else { if(cover == 255) { do { if(colors->a == base_mask) { *p = colors->v; } else { copy_or_blend_pix(p, *colors, 255); } p += Step; ++colors; } while(--len); } else { do { copy_or_blend_pix(p, *colors++, cover); p += Step; } 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 * Step + Offset; 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 = colors->v; } 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 * Step + Offset; if(covers) { do { copy_or_blend_opaque_pix(p, *colors++, *covers++); p += Step; } while(--len); } else { if(cover == 255) { do { *p = colors->v; p += Step; ++colors; } while(--len); } else { do { copy_or_blend_opaque_pix(p, *colors++, cover); p += Step; } 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 * Step + Offset; 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 = colors->v; 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 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) + Offset; do { f(p); p += Step; } while(--len); } } //-------------------------------------------------------------------- template void apply_gamma_dir(const GammaLut& g) { for_each_pixel(apply_gamma_dir_gray(g)); } //-------------------------------------------------------------------- template void apply_gamma_inv(const GammaLut& g) { for_each_pixel(apply_gamma_inv_gray(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, (value_type*)from.row(ysrc) + xsrc, sizeof(value_type) * len); } private: rendering_buffer* m_rbuf; }; typedef blender_gray blender_gray8; typedef blender_gray_pre blender_gray8_pre; typedef blender_gray blender_gray16; typedef blender_gray_pre blender_gray16_pre; typedef pixel_formats_gray pixfmt_gray8; //----pixfmt_gray8 typedef pixel_formats_gray pixfmt_gray8_rgb24r; //----pixfmt_gray8_rgb24r typedef pixel_formats_gray pixfmt_gray8_rgb24g; //----pixfmt_gray8_rgb24g typedef pixel_formats_gray pixfmt_gray8_rgb24b; //----pixfmt_gray8_rgb24b typedef pixel_formats_gray pixfmt_gray8_bgr24r; //----pixfmt_gray8_bgr24r typedef pixel_formats_gray pixfmt_gray8_bgr24g; //----pixfmt_gray8_bgr24g typedef pixel_formats_gray pixfmt_gray8_bgr24b; //----pixfmt_gray8_bgr24b typedef pixel_formats_gray pixfmt_gray8_rgba32r; //----pixfmt_gray8_rgba32r typedef pixel_formats_gray pixfmt_gray8_rgba32g; //----pixfmt_gray8_rgba32g typedef pixel_formats_gray pixfmt_gray8_rgba32b; //----pixfmt_gray8_rgba32b typedef pixel_formats_gray pixfmt_gray8_rgba32a; //----pixfmt_gray8_rgba32a typedef pixel_formats_gray pixfmt_gray8_argb32r; //----pixfmt_gray8_argb32r typedef pixel_formats_gray pixfmt_gray8_argb32g; //----pixfmt_gray8_argb32g typedef pixel_formats_gray pixfmt_gray8_argb32b; //----pixfmt_gray8_argb32b typedef pixel_formats_gray pixfmt_gray8_argb32a; //----pixfmt_gray8_argb32a typedef pixel_formats_gray pixfmt_gray8_bgra32r; //----pixfmt_gray8_bgra32r typedef pixel_formats_gray pixfmt_gray8_bgra32g; //----pixfmt_gray8_bgra32g typedef pixel_formats_gray pixfmt_gray8_bgra32b; //----pixfmt_gray8_bgra32b typedef pixel_formats_gray pixfmt_gray8_bgra32a; //----pixfmt_gray8_bgra32a typedef pixel_formats_gray pixfmt_gray8_abgr32r; //----pixfmt_gray8_abgr32r typedef pixel_formats_gray pixfmt_gray8_abgr32g; //----pixfmt_gray8_abgr32g typedef pixel_formats_gray pixfmt_gray8_abgr32b; //----pixfmt_gray8_abgr32b typedef pixel_formats_gray pixfmt_gray8_abgr32a; //----pixfmt_gray8_abgr32a typedef pixel_formats_gray pixfmt_gray8_pre; //----pixfmt_gray8_pre typedef pixel_formats_gray pixfmt_gray8_pre_rgb24r; //----pixfmt_gray8_pre_rgb24r typedef pixel_formats_gray pixfmt_gray8_pre_rgb24g; //----pixfmt_gray8_pre_rgb24g typedef pixel_formats_gray pixfmt_gray8_pre_rgb24b; //----pixfmt_gray8_pre_rgb24b typedef pixel_formats_gray pixfmt_gray8_pre_bgr24r; //----pixfmt_gray8_pre_bgr24r typedef pixel_formats_gray pixfmt_gray8_pre_bgr24g; //----pixfmt_gray8_pre_bgr24g typedef pixel_formats_gray pixfmt_gray8_pre_bgr24b; //----pixfmt_gray8_pre_bgr24b typedef pixel_formats_gray pixfmt_gray8_pre_rgba32r; //----pixfmt_gray8_pre_rgba32r typedef pixel_formats_gray pixfmt_gray8_pre_rgba32g; //----pixfmt_gray8_pre_rgba32g typedef pixel_formats_gray pixfmt_gray8_pre_rgba32b; //----pixfmt_gray8_pre_rgba32b typedef pixel_formats_gray pixfmt_gray8_pre_rgba32a; //----pixfmt_gray8_pre_rgba32a typedef pixel_formats_gray pixfmt_gray8_pre_argb32r; //----pixfmt_gray8_pre_argb32r typedef pixel_formats_gray pixfmt_gray8_pre_argb32g; //----pixfmt_gray8_pre_argb32g typedef pixel_formats_gray pixfmt_gray8_pre_argb32b; //----pixfmt_gray8_pre_argb32b typedef pixel_formats_gray pixfmt_gray8_pre_argb32a; //----pixfmt_gray8_pre_argb32a typedef pixel_formats_gray pixfmt_gray8_pre_bgra32r; //----pixfmt_gray8_pre_bgra32r typedef pixel_formats_gray pixfmt_gray8_pre_bgra32g; //----pixfmt_gray8_pre_bgra32g typedef pixel_formats_gray pixfmt_gray8_pre_bgra32b; //----pixfmt_gray8_pre_bgra32b typedef pixel_formats_gray pixfmt_gray8_pre_bgra32a; //----pixfmt_gray8_pre_bgra32a typedef pixel_formats_gray pixfmt_gray8_pre_abgr32r; //----pixfmt_gray8_pre_abgr32r typedef pixel_formats_gray pixfmt_gray8_pre_abgr32g; //----pixfmt_gray8_pre_abgr32g typedef pixel_formats_gray pixfmt_gray8_pre_abgr32b; //----pixfmt_gray8_pre_abgr32b typedef pixel_formats_gray pixfmt_gray8_pre_abgr32a; //----pixfmt_gray8_pre_abgr32a typedef pixel_formats_gray pixfmt_gray16; //----pixfmt_gray16 typedef pixel_formats_gray pixfmt_gray16_rgb48r; //----pixfmt_gray16_rgb48r typedef pixel_formats_gray pixfmt_gray16_rgb48g; //----pixfmt_gray16_rgb48g typedef pixel_formats_gray pixfmt_gray16_rgb48b; //----pixfmt_gray16_rgb48b typedef pixel_formats_gray pixfmt_gray16_bgr48r; //----pixfmt_gray16_bgr48r typedef pixel_formats_gray pixfmt_gray16_bgr48g; //----pixfmt_gray16_bgr48g typedef pixel_formats_gray pixfmt_gray16_bgr48b; //----pixfmt_gray16_bgr48b typedef pixel_formats_gray pixfmt_gray16_rgba64r; //----pixfmt_gray16_rgba64r typedef pixel_formats_gray pixfmt_gray16_rgba64g; //----pixfmt_gray16_rgba64g typedef pixel_formats_gray pixfmt_gray16_rgba64b; //----pixfmt_gray16_rgba64b typedef pixel_formats_gray pixfmt_gray16_rgba64a; //----pixfmt_gray16_rgba64a typedef pixel_formats_gray pixfmt_gray16_argb64r; //----pixfmt_gray16_argb64r typedef pixel_formats_gray pixfmt_gray16_argb64g; //----pixfmt_gray16_argb64g typedef pixel_formats_gray pixfmt_gray16_argb64b; //----pixfmt_gray16_argb64b typedef pixel_formats_gray pixfmt_gray16_argb64a; //----pixfmt_gray16_argb64a typedef pixel_formats_gray pixfmt_gray16_bgra64r; //----pixfmt_gray16_bgra64r typedef pixel_formats_gray pixfmt_gray16_bgra64g; //----pixfmt_gray16_bgra64g typedef pixel_formats_gray pixfmt_gray16_bgra64b; //----pixfmt_gray16_bgra64b typedef pixel_formats_gray pixfmt_gray16_bgra64a; //----pixfmt_gray16_bgra64a typedef pixel_formats_gray pixfmt_gray16_abgr64r; //----pixfmt_gray16_abgr64r typedef pixel_formats_gray pixfmt_gray16_abgr64g; //----pixfmt_gray16_abgr64g typedef pixel_formats_gray pixfmt_gray16_abgr64b; //----pixfmt_gray16_abgr64b typedef pixel_formats_gray pixfmt_gray16_abgr64a; //----pixfmt_gray16_abgr64a typedef pixel_formats_gray pixfmt_gray16_pre; //----pixfmt_gray16_pre typedef pixel_formats_gray pixfmt_gray16_pre_rgb48r; //----pixfmt_gray16_pre_rgb48r typedef pixel_formats_gray pixfmt_gray16_pre_rgb48g; //----pixfmt_gray16_pre_rgb48g typedef pixel_formats_gray pixfmt_gray16_pre_rgb48b; //----pixfmt_gray16_pre_rgb48b typedef pixel_formats_gray pixfmt_gray16_pre_bgr48r; //----pixfmt_gray16_pre_bgr48r typedef pixel_formats_gray pixfmt_gray16_pre_bgr48g; //----pixfmt_gray16_pre_bgr48g typedef pixel_formats_gray pixfmt_gray16_pre_bgr48b; //----pixfmt_gray16_pre_bgr48b typedef pixel_formats_gray pixfmt_gray16_pre_rgba64r; //----pixfmt_gray16_pre_rgba64r typedef pixel_formats_gray pixfmt_gray16_pre_rgba64g; //----pixfmt_gray16_pre_rgba64g typedef pixel_formats_gray pixfmt_gray16_pre_rgba64b; //----pixfmt_gray16_pre_rgba64b typedef pixel_formats_gray pixfmt_gray16_pre_rgba64a; //----pixfmt_gray16_pre_rgba64a typedef pixel_formats_gray pixfmt_gray16_pre_argb64r; //----pixfmt_gray16_pre_argb64r typedef pixel_formats_gray pixfmt_gray16_pre_argb64g; //----pixfmt_gray16_pre_argb64g typedef pixel_formats_gray pixfmt_gray16_pre_argb64b; //----pixfmt_gray16_pre_argb64b typedef pixel_formats_gray pixfmt_gray16_pre_argb64a; //----pixfmt_gray16_pre_argb64a typedef pixel_formats_gray pixfmt_gray16_pre_bgra64r; //----pixfmt_gray16_pre_bgra64r typedef pixel_formats_gray pixfmt_gray16_pre_bgra64g; //----pixfmt_gray16_pre_bgra64g typedef pixel_formats_gray pixfmt_gray16_pre_bgra64b; //----pixfmt_gray16_pre_bgra64b typedef pixel_formats_gray pixfmt_gray16_pre_bgra64a; //----pixfmt_gray16_pre_bgra64a typedef pixel_formats_gray pixfmt_gray16_pre_abgr64r; //----pixfmt_gray16_pre_abgr64r typedef pixel_formats_gray pixfmt_gray16_pre_abgr64g; //----pixfmt_gray16_pre_abgr64g typedef pixel_formats_gray pixfmt_gray16_pre_abgr64b; //----pixfmt_gray16_pre_abgr64b typedef pixel_formats_gray pixfmt_gray16_pre_abgr64a; //----pixfmt_gray16_pre_abgr64a } #endif