//---------------------------------------------------------------------------- // Anti-Grain Geometry (AGG) - Version 2.5 // A high quality rendering engine for C++ // Copyright (C) 2002-2006 Maxim Shemanarev // Contact: mcseem@antigrain.com // mcseemagg@yahoo.com // http://antigrain.com // // AGG is free software; you can redistribute it and/or // modify it under the terms of the GNU General Public License // as published by the Free Software Foundation; either version 2 // of the License, or (at your option) any later version. // // AGG is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with AGG; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, // MA 02110-1301, USA. //---------------------------------------------------------------------------- // // 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_PACKED_INCLUDED #define AGG_PIXFMT_RGB_PACKED_INCLUDED #include <string.h> #include "agg_basics.h" #include "agg_color_rgba.h" #include "agg_rendering_buffer.h" namespace agg { //=========================================================blender_rgb555 struct blender_rgb555 { typedef rgba8 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int16u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = (rgb >> 7) & 0xF8; calc_type g = (rgb >> 2) & 0xF8; calc_type b = (rgb << 3) & 0xF8; *p = (pixel_type) (((((cr - r) * alpha + (r << 8)) >> 1) & 0x7C00) | ((((cg - g) * alpha + (g << 8)) >> 6) & 0x03E0) | (((cb - b) * alpha + (b << 8)) >> 11) | 0x8000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xF8) << 7) | ((g & 0xF8) << 2) | (b >> 3) | 0x8000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 7) & 0xF8, (p >> 2) & 0xF8, (p << 3) & 0xF8); } }; //=====================================================blender_rgb555_pre struct blender_rgb555_pre { typedef rgba8 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int16u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover) { alpha = color_type::base_mask - alpha; pixel_type rgb = *p; calc_type r = (rgb >> 7) & 0xF8; calc_type g = (rgb >> 2) & 0xF8; calc_type b = (rgb << 3) & 0xF8; *p = (pixel_type) ((((r * alpha + cr * cover) >> 1) & 0x7C00) | (((g * alpha + cg * cover) >> 6) & 0x03E0) | ((b * alpha + cb * cover) >> 11) | 0x8000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xF8) << 7) | ((g & 0xF8) << 2) | (b >> 3) | 0x8000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 7) & 0xF8, (p >> 2) & 0xF8, (p << 3) & 0xF8); } }; //=====================================================blender_rgb555_gamma template<class Gamma> class blender_rgb555_gamma { public: typedef rgba8 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int16u pixel_type; typedef Gamma gamma_type; blender_rgb555_gamma() : m_gamma(0) {} void gamma(const gamma_type& g) { m_gamma = &g; } AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = m_gamma->dir((rgb >> 7) & 0xF8); calc_type g = m_gamma->dir((rgb >> 2) & 0xF8); calc_type b = m_gamma->dir((rgb << 3) & 0xF8); *p = (pixel_type) (((m_gamma->inv(((m_gamma->dir(cr) - r) * alpha + (r << 8)) >> 8) << 7) & 0x7C00) | ((m_gamma->inv(((m_gamma->dir(cg) - g) * alpha + (g << 8)) >> 8) << 2) & 0x03E0) | (m_gamma->inv(((m_gamma->dir(cb) - b) * alpha + (b << 8)) >> 8) >> 3) | 0x8000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xF8) << 7) | ((g & 0xF8) << 2) | (b >> 3) | 0x8000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 7) & 0xF8, (p >> 2) & 0xF8, (p << 3) & 0xF8); } private: const Gamma* m_gamma; }; //=========================================================blender_rgb565 struct blender_rgb565 { typedef rgba8 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int16u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = (rgb >> 8) & 0xF8; calc_type g = (rgb >> 3) & 0xFC; calc_type b = (rgb << 3) & 0xF8; *p = (pixel_type) (((((cr - r) * alpha + (r << 8)) ) & 0xF800) | ((((cg - g) * alpha + (g << 8)) >> 5) & 0x07E0) | (((cb - b) * alpha + (b << 8)) >> 11)); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 8) & 0xF8, (p >> 3) & 0xFC, (p << 3) & 0xF8); } }; //=====================================================blender_rgb565_pre struct blender_rgb565_pre { typedef rgba8 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int16u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover) { alpha = color_type::base_mask - alpha; pixel_type rgb = *p; calc_type r = (rgb >> 8) & 0xF8; calc_type g = (rgb >> 3) & 0xFC; calc_type b = (rgb << 3) & 0xF8; *p = (pixel_type) ((((r * alpha + cr * cover) ) & 0xF800) | (((g * alpha + cg * cover) >> 5 ) & 0x07E0) | ((b * alpha + cb * cover) >> 11)); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 8) & 0xF8, (p >> 3) & 0xFC, (p << 3) & 0xF8); } }; //=====================================================blender_rgb565_gamma template<class Gamma> class blender_rgb565_gamma { public: typedef rgba8 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int16u pixel_type; typedef Gamma gamma_type; blender_rgb565_gamma() : m_gamma(0) {} void gamma(const gamma_type& g) { m_gamma = &g; } AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = m_gamma->dir((rgb >> 8) & 0xF8); calc_type g = m_gamma->dir((rgb >> 3) & 0xFC); calc_type b = m_gamma->dir((rgb << 3) & 0xF8); *p = (pixel_type) (((m_gamma->inv(((m_gamma->dir(cr) - r) * alpha + (r << 8)) >> 8) << 8) & 0xF800) | ((m_gamma->inv(((m_gamma->dir(cg) - g) * alpha + (g << 8)) >> 8) << 3) & 0x07E0) | (m_gamma->inv(((m_gamma->dir(cb) - b) * alpha + (b << 8)) >> 8) >> 3)); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 8) & 0xF8, (p >> 3) & 0xFC, (p << 3) & 0xF8); } private: const Gamma* m_gamma; }; //=====================================================blender_rgbAAA struct blender_rgbAAA { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = (rgb >> 14) & 0xFFC0; calc_type g = (rgb >> 4) & 0xFFC0; calc_type b = (rgb << 6) & 0xFFC0; *p = (pixel_type) (((((cr - r) * alpha + (r << 16)) >> 2) & 0x3FF00000) | ((((cg - g) * alpha + (g << 16)) >> 12) & 0x000FFC00) | (((cb - b) * alpha + (b << 16)) >> 22) | 0xC0000000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xFFC0) << 14) | ((g & 0xFFC0) << 4) | (b >> 6) | 0xC0000000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 14) & 0xFFC0, (p >> 4) & 0xFFC0, (p << 6) & 0xFFC0); } }; //==================================================blender_rgbAAA_pre struct blender_rgbAAA_pre { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover) { alpha = color_type::base_mask - alpha; cover = (cover + 1) << (color_type::base_shift - 8); pixel_type rgb = *p; calc_type r = (rgb >> 14) & 0xFFC0; calc_type g = (rgb >> 4) & 0xFFC0; calc_type b = (rgb << 6) & 0xFFC0; *p = (pixel_type) ((((r * alpha + cr * cover) >> 2) & 0x3FF00000) | (((g * alpha + cg * cover) >> 12) & 0x000FFC00) | ((b * alpha + cb * cover) >> 22) | 0xC0000000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xFFC0) << 14) | ((g & 0xFFC0) << 4) | (b >> 6) | 0xC0000000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 14) & 0xFFC0, (p >> 4) & 0xFFC0, (p << 6) & 0xFFC0); } }; //=================================================blender_rgbAAA_gamma template<class Gamma> class blender_rgbAAA_gamma { public: typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; typedef Gamma gamma_type; blender_rgbAAA_gamma() : m_gamma(0) {} void gamma(const gamma_type& g) { m_gamma = &g; } AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = m_gamma->dir((rgb >> 14) & 0xFFC0); calc_type g = m_gamma->dir((rgb >> 4) & 0xFFC0); calc_type b = m_gamma->dir((rgb << 6) & 0xFFC0); *p = (pixel_type) (((m_gamma->inv(((m_gamma->dir(cr) - r) * alpha + (r << 16)) >> 16) << 14) & 0x3FF00000) | ((m_gamma->inv(((m_gamma->dir(cg) - g) * alpha + (g << 16)) >> 16) << 4 ) & 0x000FFC00) | (m_gamma->inv(((m_gamma->dir(cb) - b) * alpha + (b << 16)) >> 16) >> 6 ) | 0xC0000000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xFFC0) << 14) | ((g & 0xFFC0) << 4) | (b >> 6) | 0xC0000000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 14) & 0xFFC0, (p >> 4) & 0xFFC0, (p << 6) & 0xFFC0); } private: const Gamma* m_gamma; }; //=====================================================blender_bgrAAA struct blender_bgrAAA { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type bgr = *p; calc_type b = (bgr >> 14) & 0xFFC0; calc_type g = (bgr >> 4) & 0xFFC0; calc_type r = (bgr << 6) & 0xFFC0; *p = (pixel_type) (((((cb - b) * alpha + (b << 16)) >> 2) & 0x3FF00000) | ((((cg - g) * alpha + (g << 16)) >> 12) & 0x000FFC00) | (((cr - r) * alpha + (r << 16)) >> 22) | 0xC0000000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((b & 0xFFC0) << 14) | ((g & 0xFFC0) << 4) | (r >> 6) | 0xC0000000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p << 6) & 0xFFC0, (p >> 4) & 0xFFC0, (p >> 14) & 0xFFC0); } }; //=================================================blender_bgrAAA_pre struct blender_bgrAAA_pre { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover) { alpha = color_type::base_mask - alpha; cover = (cover + 1) << (color_type::base_shift - 8); pixel_type bgr = *p; calc_type b = (bgr >> 14) & 0xFFC0; calc_type g = (bgr >> 4) & 0xFFC0; calc_type r = (bgr << 6) & 0xFFC0; *p = (pixel_type) ((((b * alpha + cb * cover) >> 2) & 0x3FF00000) | (((g * alpha + cg * cover) >> 12) & 0x000FFC00) | ((r * alpha + cr * cover) >> 22) | 0xC0000000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((b & 0xFFC0) << 14) | ((g & 0xFFC0) << 4) | (r >> 6) | 0xC0000000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p << 6) & 0xFFC0, (p >> 4) & 0xFFC0, (p >> 14) & 0xFFC0); } }; //=================================================blender_bgrAAA_gamma template<class Gamma> class blender_bgrAAA_gamma { public: typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; typedef Gamma gamma_type; blender_bgrAAA_gamma() : m_gamma(0) {} void gamma(const gamma_type& g) { m_gamma = &g; } AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type bgr = *p; calc_type b = m_gamma->dir((bgr >> 14) & 0xFFC0); calc_type g = m_gamma->dir((bgr >> 4) & 0xFFC0); calc_type r = m_gamma->dir((bgr << 6) & 0xFFC0); *p = (pixel_type) (((m_gamma->inv(((m_gamma->dir(cb) - b) * alpha + (b << 16)) >> 16) << 14) & 0x3FF00000) | ((m_gamma->inv(((m_gamma->dir(cg) - g) * alpha + (g << 16)) >> 16) << 4 ) & 0x000FFC00) | (m_gamma->inv(((m_gamma->dir(cr) - r) * alpha + (r << 16)) >> 16) >> 6 ) | 0xC0000000); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((b & 0xFFC0) << 14) | ((g & 0xFFC0) << 4) | (r >> 6) | 0xC0000000); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p << 6) & 0xFFC0, (p >> 4) & 0xFFC0, (p >> 14) & 0xFFC0); } private: const Gamma* m_gamma; }; //=====================================================blender_rgbBBA struct blender_rgbBBA { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = (rgb >> 16) & 0xFFE0; calc_type g = (rgb >> 5) & 0xFFE0; calc_type b = (rgb << 6) & 0xFFC0; *p = (pixel_type) (((((cr - r) * alpha + (r << 16)) ) & 0xFFE00000) | ((((cg - g) * alpha + (g << 16)) >> 11) & 0x001FFC00) | (((cb - b) * alpha + (b << 16)) >> 22)); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xFFE0) << 16) | ((g & 0xFFE0) << 5) | (b >> 6)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 16) & 0xFFE0, (p >> 5) & 0xFFE0, (p << 6) & 0xFFC0); } }; //=================================================blender_rgbBBA_pre struct blender_rgbBBA_pre { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover) { alpha = color_type::base_mask - alpha; cover = (cover + 1) << (color_type::base_shift - 8); pixel_type rgb = *p; calc_type r = (rgb >> 16) & 0xFFE0; calc_type g = (rgb >> 5) & 0xFFE0; calc_type b = (rgb << 6) & 0xFFC0; *p = (pixel_type) ((((r * alpha + cr * cover) ) & 0xFFE00000) | (((g * alpha + cg * cover) >> 11) & 0x001FFC00) | ((b * alpha + cb * cover) >> 22)); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xFFE0) << 16) | ((g & 0xFFE0) << 5) | (b >> 6)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 16) & 0xFFE0, (p >> 5) & 0xFFE0, (p << 6) & 0xFFC0); } }; //=================================================blender_rgbBBA_gamma template<class Gamma> class blender_rgbBBA_gamma { public: typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; typedef Gamma gamma_type; blender_rgbBBA_gamma() : m_gamma(0) {} void gamma(const gamma_type& g) { m_gamma = &g; } AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type rgb = *p; calc_type r = m_gamma->dir((rgb >> 16) & 0xFFE0); calc_type g = m_gamma->dir((rgb >> 5) & 0xFFE0); calc_type b = m_gamma->dir((rgb << 6) & 0xFFC0); *p = (pixel_type) (((m_gamma->inv(((m_gamma->dir(cr) - r) * alpha + (r << 16)) >> 16) << 16) & 0xFFE00000) | ((m_gamma->inv(((m_gamma->dir(cg) - g) * alpha + (g << 16)) >> 16) << 5 ) & 0x001FFC00) | (m_gamma->inv(((m_gamma->dir(cb) - b) * alpha + (b << 16)) >> 16) >> 6 )); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((r & 0xFFE0) << 16) | ((g & 0xFFE0) << 5) | (b >> 6)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p >> 16) & 0xFFE0, (p >> 5) & 0xFFE0, (p << 6) & 0xFFC0); } private: const Gamma* m_gamma; }; //=====================================================blender_bgrABB struct blender_bgrABB { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type bgr = *p; calc_type b = (bgr >> 16) & 0xFFC0; calc_type g = (bgr >> 6) & 0xFFE0; calc_type r = (bgr << 5) & 0xFFE0; *p = (pixel_type) (((((cb - b) * alpha + (b << 16)) ) & 0xFFC00000) | ((((cg - g) * alpha + (g << 16)) >> 10) & 0x003FF800) | (((cr - r) * alpha + (r << 16)) >> 21)); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((b & 0xFFC0) << 16) | ((g & 0xFFE0) << 6) | (r >> 5)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p << 5) & 0xFFE0, (p >> 6) & 0xFFE0, (p >> 16) & 0xFFC0); } }; //=================================================blender_bgrABB_pre struct blender_bgrABB_pre { typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; static AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned cover) { alpha = color_type::base_mask - alpha; cover = (cover + 1) << (color_type::base_shift - 8); pixel_type bgr = *p; calc_type b = (bgr >> 16) & 0xFFC0; calc_type g = (bgr >> 6) & 0xFFE0; calc_type r = (bgr << 5) & 0xFFE0; *p = (pixel_type) ((((b * alpha + cb * cover) ) & 0xFFC00000) | (((g * alpha + cg * cover) >> 10) & 0x003FF800) | ((r * alpha + cr * cover) >> 21)); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((b & 0xFFC0) << 16) | ((g & 0xFFE0) << 6) | (r >> 5)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p << 5) & 0xFFE0, (p >> 6) & 0xFFE0, (p >> 16) & 0xFFC0); } }; //=================================================blender_bgrABB_gamma template<class Gamma> class blender_bgrABB_gamma { public: typedef rgba16 color_type; typedef color_type::value_type value_type; typedef color_type::calc_type calc_type; typedef int32u pixel_type; typedef Gamma gamma_type; blender_bgrABB_gamma() : m_gamma(0) {} void gamma(const gamma_type& g) { m_gamma = &g; } AGG_INLINE void blend_pix(pixel_type* p, unsigned cr, unsigned cg, unsigned cb, unsigned alpha, unsigned) { pixel_type bgr = *p; calc_type b = m_gamma->dir((bgr >> 16) & 0xFFC0); calc_type g = m_gamma->dir((bgr >> 6) & 0xFFE0); calc_type r = m_gamma->dir((bgr << 5) & 0xFFE0); *p = (pixel_type) (((m_gamma->inv(((m_gamma->dir(cb) - b) * alpha + (b << 16)) >> 16) << 16) & 0xFFC00000) | ((m_gamma->inv(((m_gamma->dir(cg) - g) * alpha + (g << 16)) >> 16) << 6 ) & 0x003FF800) | (m_gamma->inv(((m_gamma->dir(cr) - r) * alpha + (r << 16)) >> 16) >> 5 )); } static AGG_INLINE pixel_type make_pix(unsigned r, unsigned g, unsigned b) { return (pixel_type)(((b & 0xFFC0) << 16) | ((g & 0xFFE0) << 6) | (r >> 5)); } static AGG_INLINE color_type make_color(pixel_type p) { return color_type((p << 5) & 0xFFE0, (p >> 6) & 0xFFE0, (p >> 16) & 0xFFC0); } private: const Gamma* m_gamma; }; //===========================================pixfmt_alpha_blend_rgb_packed template<class Blender, class RenBuf> class pixfmt_alpha_blend_rgb_packed { 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::pixel_type pixel_type; typedef int order_type; // A fake one typedef typename color_type::value_type value_ |