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-rwxr-xr-xagg/inc/agg_pixfmt_rgb_packed.h1277
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diff --git a/agg/inc/agg_pixfmt_rgb_packed.h b/agg/inc/agg_pixfmt_rgb_packed.h
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+++ b/agg/inc/agg_pixfmt_rgb_packed.h
@@ -0,0 +1,1277 @@
+//----------------------------------------------------------------------------
+// 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_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;
+ };
+
+
+
+ //===============================================pixel_formats_rgb_packed
+ template<class Blender> class pixel_formats_rgb_packed
+ {
+ public:
+ typedef rendering_buffer::row_data row_data;
+ typedef typename Blender::color_type color_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
+ };
+
+ private:
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_or_blend_pix(pixel_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 = m_blender.make_pix(c.r, c.g, c.b);
+ }
+ else
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
+ }
+ }
+ }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_or_blend_opaque_pix(pixel_type* p, const color_type& c, unsigned cover)
+ {
+ if(cover == 255)
+ {
+ *p = m_blender.make_pix(c.r, c.g, c.b);
+ }
+ else
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, (cover + 1) << (base_shift - 8), cover);
+ }
+ }
+
+
+ public:
+ //--------------------------------------------------------------------
+ pixel_formats_rgb_packed(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
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ return m_blender.make_color(((pixel_type*)m_rbuf->row(y))[x]);
+ }
+
+ //--------------------------------------------------------------------
+ row_data span(int x, int y) const
+ {
+ return row_data(x,
+ width() - 1,
+ m_rbuf->row(y) + x * sizeof(pixel_type));
+ }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_pixel(int x, int y, const color_type& c)
+ {
+ ((pixel_type*)m_rbuf->row(y))[x] = m_blender.make_pix(c.r, c.g, c.b);
+ }
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void blend_pixel(int x, int y, const color_type& c, int8u cover)
+ {
+ copy_or_blend_pix((pixel_type*)m_rbuf->row(y) + x, c, cover);
+ }
+
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_hline(int x, int y,
+ unsigned len,
+ const color_type& c)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ pixel_type v = m_blender.make_pix(c.r, c.g, c.b);
+ do
+ {
+ *p++ = v;
+ }
+ while(--len);
+ }
+
+
+ //--------------------------------------------------------------------
+ AGG_INLINE void copy_vline(int x, int y,
+ unsigned len,
+ const color_type& c)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ pixel_type v = m_blender.make_pix(c.r, c.g, c.b);
+ do
+ {
+ *p = v;
+ p = (pixel_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)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8;
+ if(alpha == base_mask)
+ {
+ pixel_type v = m_blender.make_pix(c.r, c.g, c.b);
+ do
+ {
+ *p++ = v;
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
+ ++p;
+ }
+ while(--len);
+ }
+ }
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_vline(int x, int y,
+ unsigned len,
+ const color_type& c,
+ int8u cover)
+ {
+ if (c.a)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ calc_type alpha = (calc_type(c.a) * (cover + 1)) >> 8;
+ if(alpha == base_mask)
+ {
+ pixel_type v = m_blender.make_pix(c.r, c.g, c.b);
+ do
+ {
+ *p = v;
+ p = (pixel_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ m_blender.blend_pix(p, c.r, c.g, c.b, alpha, cover);
+ p = (pixel_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)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ do
+ {
+ copy_or_blend_pix(p, c, *covers++);
+ ++p;
+ }
+ while(--len);
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_solid_vspan(int x, int y,
+ unsigned len,
+ const color_type& c,
+ const int8u* covers)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ do
+ {
+ copy_or_blend_pix(p, c, *covers++);
+ p = (pixel_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_color_hspan(int x, int y,
+ unsigned len,
+ const color_type* colors,
+ const int8u* covers,
+ int8u cover)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ do
+ {
+ copy_or_blend_pix(p++, *colors++, covers ? *covers++ : cover);
+ }
+ while(--len);
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_color_vspan(int x, int y,
+ unsigned len,
+ const color_type* colors,
+ const int8u* covers,
+ int8u cover)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ do
+ {
+ copy_or_blend_pix(p, *colors++, covers ? *covers++ : cover);
+ p = (pixel_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)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ if(covers)
+ {
+ do
+ {
+ copy_or_blend_opaque_pix(p++, *colors++, *covers++);
+ }
+ while(--len);
+ }
+ else
+ {
+ if(cover == 255)
+ {
+ do
+ {
+ *p++ = m_blender.make_pix(colors->r, colors->g, colors->b);
+ ++colors;
+ }
+ while(--len);
+ }
+ else
+ {
+ do
+ {
+ copy_or_blend_opaque_pix(p++, *colors++, cover);
+ }
+ while(--len);
+ }
+ }
+ }
+
+
+ //--------------------------------------------------------------------
+ void blend_opaque_color_vspan(int x, int y,
+ unsigned len,
+ const color_type* colors,
+ const int8u* covers,
+ int8u cover)
+ {
+ pixel_type* p = (pixel_type*)m_rbuf->row(y) + x;
+ if(covers)
+ {
+ do
+ {
+ copy_or_blend_opaque_pix(p, *colors++, *covers++);
+ p = (pixel_type*)m_rbuf->next_row(p);
+ }
+ while(--len);
+ }
+ else
+ {
+ if(cover == 255)
+ {
+ do
+ {
+ *p = m_blender.make_pix(colors->r, colors->g, 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);
+ }
+ }
+ }
+
+
+ //--------------------------------------------------------------------
+ void copy_from(const rendering_buffer& from,
+ int xdst, int ydst,
+ int xsrc, int ysrc,
+ unsigned len)
+ {
+ memmove((pixel_type*)m_rbuf->row(ydst) + xdst,
+ (pixel_type*)from.row(ysrc) + xsrc,
+ sizeof(pixel_type) * 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_;
+ pixel_type* pdst = (pixel_type*)m_rbuf->row(ydst) + xdst;
+ do
+ {
+ value_type alpha = psrc[src_order::A];
+ if(alpha)
+ {
+ if(alpha == base_mask)
+ {
+ *pdst = m_blender.make_pix(psrc[src_order::R],
+ psrc[src_order::G],
+ 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;
+ }
+ while(--len);
+ }
+
+
+ private:
+ rendering_buffer* m_rbuf;
+ Blender m_blender;
+ };
+
+ typedef pixel_formats_rgb_packed<blender_rgb555> pixfmt_rgb555; //----pixfmt_rgb555
+ typedef pixel_formats_rgb_packed<blender_rgb565> pixfmt_rgb565; //----pixfmt_rgb565
+
+ typedef pixel_formats_rgb_packed<blender_rgb555_pre> pixfmt_rgb555_pre; //----pixfmt_rgb555_pre
+ typedef pixel_formats_rgb_packed<blender_rgb565_pre> pixfmt_rgb565_pre; //----pixfmt_rgb565_pre
+
+ typedef pixel_formats_rgb_packed<blender_rgbAAA> pixfmt_rgbAAA; //----pixfmt_rgbAAA
+ typedef pixel_formats_rgb_packed<blender_bgrAAA> pixfmt_bgrAAA; //----pixfmt_bgrAAA
+ typedef pixel_formats_rgb_packed<blender_rgbBBA> pixfmt_rgbBBA; //----pixfmt_rgbBBA
+ typedef pixel_formats_rgb_packed<blender_bgrABB> pixfmt_bgrABB; //----pixfmt_bgrABB
+
+ typedef pixel_formats_rgb_packed<blender_rgbAAA_pre> pixfmt_rgbAAA_pre; //----pixfmt_rgbAAA_pre
+ typedef pixel_formats_rgb_packed<blender_bgrAAA_pre> pixfmt_bgrAAA_pre; //----pixfmt_bgrAAA_pre
+ typedef pixel_formats_rgb_packed<blender_rgbBBA_pre> pixfmt_rgbBBA_pre; //----pixfmt_rgbBBA_pre
+ typedef pixel_formats_rgb_packed<blender_bgrABB_pre> pixfmt_bgrABB_pre; //----pixfmt_bgrABB_pre
+
+
+ //-----------------------------------------------------pixfmt_rgb555_gamma
+ template<class Gamma> class pixfmt_rgb555_gamma :
+ public pixel_formats_rgb_packed<blender_rgb555_gamma<Gamma> >
+ {
+ public:
+ pixfmt_rgb555_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb_packed<blender_rgb555_gamma<Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+
+ //-----------------------------------------------------pixfmt_rgb565_gamma
+ template<class Gamma> class pixfmt_rgb565_gamma :
+ public pixel_formats_rgb_packed<blender_rgb565_gamma<Gamma> >
+ {
+ public:
+ pixfmt_rgb565_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb_packed<blender_rgb565_gamma<Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+
+ //-----------------------------------------------------pixfmt_rgbAAA_gamma
+ template<class Gamma> class pixfmt_rgbAAA_gamma :
+ public pixel_formats_rgb_packed<blender_rgbAAA_gamma<Gamma> >
+ {
+ public:
+ pixfmt_rgbAAA_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb_packed<blender_rgbAAA_gamma<Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+
+ //-----------------------------------------------------pixfmt_bgrAAA_gamma
+ template<class Gamma> class pixfmt_bgrAAA_gamma :
+ public pixel_formats_rgb_packed<blender_bgrAAA_gamma<Gamma> >
+ {
+ public:
+ pixfmt_bgrAAA_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb_packed<blender_bgrAAA_gamma<Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+
+ //-----------------------------------------------------pixfmt_rgbBBA_gamma
+ template<class Gamma> class pixfmt_rgbBBA_gamma :
+ public pixel_formats_rgb_packed<blender_rgbBBA_gamma<Gamma> >
+ {
+ public:
+ pixfmt_rgbBBA_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb_packed<blender_rgbBBA_gamma<Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+
+ //-----------------------------------------------------pixfmt_bgrABB_gamma
+ template<class Gamma> class pixfmt_bgrABB_gamma :
+ public pixel_formats_rgb_packed<blender_bgrABB_gamma<Gamma> >
+ {
+ public:
+ pixfmt_bgrABB_gamma(rendering_buffer& rb, const Gamma& g) :
+ pixel_formats_rgb_packed<blender_bgrABB_gamma<Gamma> >(rb)
+ {
+ this->blender().gamma(g);
+ }
+ };
+
+
+}
+
+#endif
+
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