Repo created

2025-11-22 13:58:55 +01:00 · 2025-11-22 13:58:55 +01:00 · 68073add76
commit 68073add76
parent 4af19165ec
12458 changed files with 12350765 additions and 2 deletions
--- a/3party/agg/agg_glyph_raster_bin.h
+++ b/3party/agg/agg_glyph_raster_bin.h
@ -0,0 +1,155 @@
+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.4
+// 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
+//----------------------------------------------------------------------------
+
+#ifndef AGG_GLYPH_RASTER_BIN_INCLUDED
+#define AGG_GLYPH_RASTER_BIN_INCLUDED
+
+#include <string.h>
+#include "agg_basics.h"
+
+namespace agg
+{
+
+    //========================================================glyph_raster_bin
+    template<class ColorT> class glyph_raster_bin
+    {
+    public:
+        typedef ColorT color_type;
+
+        //--------------------------------------------------------------------
+        struct glyph_rect
+        {
+            int x1,y1,x2,y2;
+            double dx, dy;
+        };
+
+        //--------------------------------------------------------------------
+        glyph_raster_bin(const int8u* font) :
+            m_font(font),
+            m_big_endian(false)
+        {
+            int t = 1;
+            if(*(char*)&t == 0) m_big_endian = true;
+            memset(m_span, 0, sizeof(m_span));
+        }
+
+        //--------------------------------------------------------------------
+        const int8u* font() const { return m_font; }
+        void font(const int8u* f) { m_font = f; }
+
+        //--------------------------------------------------------------------
+        double height()    const { return m_font[0]; }
+        double base_line() const { return m_font[1]; }
+
+        //--------------------------------------------------------------------
+        template<class CharT>
+        double width(const CharT* str) const
+        {
+            unsigned start_char = m_font[2];
+            unsigned num_chars = m_font[3];
+
+            unsigned w = 0;
+            while(*str)
+            {
+                unsigned glyph = *str;
+                const int8u* bits = m_font + 4 + num_chars * 2 + 
+                                    value(m_font + 4 + (glyph - start_char) * 2);
+                w += *bits;
+                ++str;
+            }
+            return w;
+        }
+
+        //--------------------------------------------------------------------
+        void prepare(glyph_rect* r, double x, double y, unsigned glyph, bool flip)
+        {
+            unsigned start_char = m_font[2];
+            unsigned num_chars = m_font[3];
+
+            m_bits = m_font + 4 + num_chars * 2 + 
+                     value(m_font + 4 + (glyph - start_char) * 2);
+
+            m_glyph_width = *m_bits++;
+            m_glyph_byte_width = (m_glyph_width + 7) >> 3;
+
+            r->x1 = int(x);
+            r->x2 = r->x1 + m_glyph_width - 1;
+            if(flip)
+            {
+                r->y1 = int(y) - m_font[0] + m_font[1];
+                r->y2 = r->y1 + m_font[0] - 1;
+            }
+            else
+            {
+                r->y1 = int(y) - m_font[1] + 1;
+                r->y2 = r->y1 + m_font[0] - 1;
+            }
+            r->dx = m_glyph_width; 
+            r->dy = 0;
+        }
+
+        //--------------------------------------------------------------------
+        const cover_type* span(unsigned i)
+        {
+            i = m_font[0] - i - 1;
+            const int8u* bits = m_bits + i * m_glyph_byte_width;
+            unsigned j;
+            unsigned val = *bits;
+            unsigned nb = 0;
+            for(j = 0; j < m_glyph_width; ++j)
+            {
+                m_span[j] = (cover_type)((val & 0x80) ? cover_full : cover_none);
+                val <<= 1;
+                if(++nb >= 8)
+                {
+                    val = *++bits;
+                    nb = 0;
+                }
+            }
+            return m_span;
+        }
+
+    private:
+        //--------------------------------------------------------------------
+        int16u value(const int8u* p) const
+        {
+            int16u v;
+            if(m_big_endian)
+            {
+                 *(int8u*)&v      = p[1];
+                *((int8u*)&v + 1) = p[0];
+            }
+            else
+            {
+                 *(int8u*)&v      = p[0];
+                *((int8u*)&v + 1) = p[1];
+            }
+            return v;
+        }
+
+
+        //--------------------------------------------------------------------
+        const int8u* m_font;
+        bool m_big_endian;
+        cover_type m_span[32];
+        const int8u* m_bits;
+        unsigned m_glyph_width;
+        unsigned m_glyph_byte_width;
+    };
+
+
+}
+
+#endif