939 lines
35 KiB
C++
939 lines
35 KiB
C++
//----------------------------------------------------------------------------
|
|
// 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
|
|
//----------------------------------------------------------------------------
|
|
|
|
#include <cstdio>
|
|
#include <cstring>
|
|
#include "agg_font_win32_tt.h"
|
|
#include "agg_bitset_iterator.h"
|
|
#include "agg_renderer_scanline.h"
|
|
|
|
#ifdef AGG_WIN9X_COMPLIANT
|
|
#define GetGlyphOutlineX GetGlyphOutline
|
|
#else
|
|
#define GetGlyphOutlineX GetGlyphOutlineW
|
|
#endif
|
|
|
|
namespace agg
|
|
{
|
|
|
|
//------------------------------------------------------------------------------
|
|
//
|
|
// This code implements the AUTODIN II polynomial
|
|
// The variable corresponding to the macro argument "crc" should
|
|
// be an unsigned long.
|
|
// Oroginal code by Spencer Garrett <srg@quick.com>
|
|
//
|
|
|
|
// generated using the AUTODIN II polynomial
|
|
// x^32 + x^26 + x^23 + x^22 + x^16 +
|
|
// x^12 + x^11 + x^10 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + 1
|
|
//
|
|
//------------------------------------------------------------------------------
|
|
|
|
static const unsigned crc32tab[256] =
|
|
{
|
|
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba,
|
|
0x076dc419, 0x706af48f, 0xe963a535, 0x9e6495a3,
|
|
0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
|
|
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91,
|
|
0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
|
|
0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
|
|
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec,
|
|
0x14015c4f, 0x63066cd9, 0xfa0f3d63, 0x8d080df5,
|
|
0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
|
|
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
|
|
0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940,
|
|
0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
|
|
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116,
|
|
0x21b4f4b5, 0x56b3c423, 0xcfba9599, 0xb8bda50f,
|
|
0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
|
|
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d,
|
|
0x76dc4190, 0x01db7106, 0x98d220bc, 0xefd5102a,
|
|
0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
|
|
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818,
|
|
0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
|
|
0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
|
|
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457,
|
|
0x65b0d9c6, 0x12b7e950, 0x8bbeb8ea, 0xfcb9887c,
|
|
0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
|
|
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
|
|
0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb,
|
|
0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
|
|
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9,
|
|
0x5005713c, 0x270241aa, 0xbe0b1010, 0xc90c2086,
|
|
0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
|
|
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4,
|
|
0x59b33d17, 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad,
|
|
0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
|
|
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683,
|
|
0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
|
|
0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
|
|
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe,
|
|
0xf762575d, 0x806567cb, 0x196c3671, 0x6e6b06e7,
|
|
0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
|
|
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
|
|
0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252,
|
|
0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
|
|
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60,
|
|
0xdf60efc3, 0xa867df55, 0x316e8eef, 0x4669be79,
|
|
0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
|
|
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f,
|
|
0xc5ba3bbe, 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04,
|
|
0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
|
|
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a,
|
|
0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
|
|
0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
|
|
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21,
|
|
0x86d3d2d4, 0xf1d4e242, 0x68ddb3f8, 0x1fda836e,
|
|
0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
|
|
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
|
|
0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45,
|
|
0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
|
|
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db,
|
|
0xaed16a4a, 0xd9d65adc, 0x40df0b66, 0x37d83bf0,
|
|
0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
|
|
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6,
|
|
0xbad03605, 0xcdd70693, 0x54de5729, 0x23d967bf,
|
|
0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
|
|
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d,
|
|
};
|
|
|
|
//------------------------------------------------------------------------------
|
|
static unsigned calc_crc32(const unsigned char* buf, unsigned size)
|
|
{
|
|
unsigned crc = (unsigned)~0;
|
|
const unsigned char* p;
|
|
unsigned len = 0;
|
|
unsigned nr = size;
|
|
|
|
for (len += nr, p = buf; nr--; ++p)
|
|
{
|
|
crc = (crc >> 8) ^ crc32tab[(crc ^ *p) & 0xff];
|
|
}
|
|
return ~crc;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static inline FIXED dbl_to_fx(double d)
|
|
{
|
|
int l;
|
|
l = int(d * 65536.0);
|
|
return *(FIXED*)&l;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static inline int dbl_to_plain_fx(double d)
|
|
{
|
|
return int(d * 65536.0);
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static inline FIXED negate_fx(const FIXED& fx)
|
|
{
|
|
int l = -(*(int*)(&fx));
|
|
return *(FIXED*)&l;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static inline double fx_to_dbl(const FIXED& p)
|
|
{
|
|
return double(p.value) + double(p.fract) * (1.0 / 65536.0);
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static inline int fx_to_plain_int(const FIXED& fx)
|
|
{
|
|
return *(int*)(&fx);
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static inline int fx_to_int26p6(const FIXED& p)
|
|
{
|
|
return (int(p.value) << 6) + (int(p.fract) >> 10);
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
static inline int dbl_to_int26p6(double p)
|
|
{
|
|
return int(p * 64.0 + 0.5);
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
template<class Scanline, class ScanlineStorage>
|
|
void decompose_win32_glyph_bitmap_mono(const char* gbuf,
|
|
int w, int h,
|
|
int x, int y,
|
|
bool flip_y,
|
|
Scanline& sl,
|
|
ScanlineStorage& storage)
|
|
{
|
|
int i;
|
|
int pitch = ((w + 31) >> 5) << 2;
|
|
const int8u* buf = (const int8u*)gbuf;
|
|
sl.reset(x, x + w);
|
|
storage.prepare();
|
|
if(flip_y)
|
|
{
|
|
buf += pitch * (h - 1);
|
|
y += h;
|
|
pitch = -pitch;
|
|
}
|
|
for(i = 0; i < h; i++)
|
|
{
|
|
sl.reset_spans();
|
|
bitset_iterator bits(buf, 0);
|
|
int j;
|
|
for(j = 0; j < w; j++)
|
|
{
|
|
if(bits.bit()) sl.add_cell(x + j, cover_full);
|
|
++bits;
|
|
}
|
|
buf += pitch;
|
|
if(sl.num_spans())
|
|
{
|
|
sl.finalize(y - i - 1);
|
|
storage.render(sl);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
template<class Rasterizer, class Scanline, class ScanlineStorage>
|
|
void decompose_win32_glyph_bitmap_gray8(const char* gbuf,
|
|
int w, int h,
|
|
int x, int y,
|
|
bool flip_y,
|
|
Rasterizer& ras,
|
|
Scanline& sl,
|
|
ScanlineStorage& storage)
|
|
{
|
|
int i, j;
|
|
int pitch = ((w + 3) >> 2) << 2;
|
|
const int8u* buf = (const int8u*)gbuf;
|
|
sl.reset(x, x + w);
|
|
storage.prepare();
|
|
if(flip_y)
|
|
{
|
|
buf += pitch * (h - 1);
|
|
y += h;
|
|
pitch = -pitch;
|
|
}
|
|
for(i = 0; i < h; i++)
|
|
{
|
|
sl.reset_spans();
|
|
const int8u* p = buf;
|
|
for(j = 0; j < w; j++)
|
|
{
|
|
if(*p)
|
|
{
|
|
unsigned v = *p;
|
|
if(v == 64) v = 255;
|
|
else v <<= 2;
|
|
sl.add_cell(x + j, ras.apply_gamma(v));
|
|
}
|
|
++p;
|
|
}
|
|
buf += pitch;
|
|
if(sl.num_spans())
|
|
{
|
|
sl.finalize(y - i - 1);
|
|
storage.render(sl);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
template<class PathStorage>
|
|
bool decompose_win32_glyph_outline(const char* gbuf,
|
|
unsigned total_size,
|
|
bool flip_y,
|
|
const trans_affine& mtx,
|
|
PathStorage& path)
|
|
{
|
|
const char* cur_glyph = gbuf;
|
|
const char* end_glyph = gbuf + total_size;
|
|
double x, y;
|
|
typedef typename PathStorage::value_type value_type;
|
|
|
|
while(cur_glyph < end_glyph)
|
|
{
|
|
const TTPOLYGONHEADER* th = (TTPOLYGONHEADER*)cur_glyph;
|
|
|
|
const char* end_poly = cur_glyph + th->cb;
|
|
const char* cur_poly = cur_glyph + sizeof(TTPOLYGONHEADER);
|
|
|
|
x = fx_to_dbl(th->pfxStart.x);
|
|
y = fx_to_dbl(th->pfxStart.y);
|
|
if(flip_y) y = -y;
|
|
mtx.transform(&x, &y);
|
|
path.move_to(value_type(dbl_to_int26p6(x)),
|
|
value_type(dbl_to_int26p6(y)));
|
|
|
|
while(cur_poly < end_poly)
|
|
{
|
|
const TTPOLYCURVE* pc = (const TTPOLYCURVE*)cur_poly;
|
|
|
|
if (pc->wType == TT_PRIM_LINE)
|
|
{
|
|
int i;
|
|
for (i = 0; i < pc->cpfx; i++)
|
|
{
|
|
x = fx_to_dbl(pc->apfx[i].x);
|
|
y = fx_to_dbl(pc->apfx[i].y);
|
|
if(flip_y) y = -y;
|
|
mtx.transform(&x, &y);
|
|
path.line_to(value_type(dbl_to_int26p6(x)),
|
|
value_type(dbl_to_int26p6(y)));
|
|
}
|
|
}
|
|
|
|
if (pc->wType == TT_PRIM_QSPLINE)
|
|
{
|
|
int u;
|
|
for (u = 0; u < pc->cpfx - 1; u++) // Walk through points in spline
|
|
{
|
|
POINTFX pnt_b = pc->apfx[u]; // B is always the current point
|
|
POINTFX pnt_c = pc->apfx[u+1];
|
|
|
|
if (u < pc->cpfx - 2) // If not on last spline, compute C
|
|
{
|
|
// midpoint (x,y)
|
|
*(int*)&pnt_c.x = (*(int*)&pnt_b.x + *(int*)&pnt_c.x) / 2;
|
|
*(int*)&pnt_c.y = (*(int*)&pnt_b.y + *(int*)&pnt_c.y) / 2;
|
|
}
|
|
|
|
double x2, y2;
|
|
x = fx_to_dbl(pnt_b.x);
|
|
y = fx_to_dbl(pnt_b.y);
|
|
x2 = fx_to_dbl(pnt_c.x);
|
|
y2 = fx_to_dbl(pnt_c.y);
|
|
if(flip_y) { y = -y; y2 = -y2; }
|
|
mtx.transform(&x, &y);
|
|
mtx.transform(&x2, &y2);
|
|
path.curve3(value_type(dbl_to_int26p6(x)),
|
|
value_type(dbl_to_int26p6(y)),
|
|
value_type(dbl_to_int26p6(x2)),
|
|
value_type(dbl_to_int26p6(y2)));
|
|
}
|
|
}
|
|
cur_poly += sizeof(WORD) * 2 + sizeof(POINTFX) * pc->cpfx;
|
|
}
|
|
cur_glyph += th->cb;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
font_engine_win32_tt_base::~font_engine_win32_tt_base()
|
|
{
|
|
delete [] m_kerning_pairs;
|
|
delete [] m_gbuf;
|
|
delete [] m_signature;
|
|
delete [] m_typeface;
|
|
if(m_dc && m_old_font) ::SelectObject(m_dc, m_old_font);
|
|
unsigned i;
|
|
for(i = 0; i < m_num_fonts; ++i)
|
|
{
|
|
delete [] m_font_names[i];
|
|
::DeleteObject(m_fonts[i]);
|
|
}
|
|
delete [] m_font_names;
|
|
delete [] m_fonts;
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
font_engine_win32_tt_base::font_engine_win32_tt_base(bool flag32,
|
|
HDC dc,
|
|
unsigned max_fonts) :
|
|
m_flag32(flag32),
|
|
m_dc(dc),
|
|
m_old_font(m_dc ? (HFONT)::GetCurrentObject(m_dc, OBJ_FONT) : 0),
|
|
m_fonts(new HFONT [max_fonts]),
|
|
m_num_fonts(0),
|
|
m_max_fonts(max_fonts),
|
|
m_font_names(new char* [max_fonts]),
|
|
m_cur_font(0),
|
|
|
|
m_change_stamp(0),
|
|
m_typeface(new char [256-16]),
|
|
m_typeface_len(256-16-1),
|
|
m_signature(new char [256+256-16]),
|
|
m_height(0),
|
|
m_width(0),
|
|
m_weight(FW_REGULAR),
|
|
m_italic(false),
|
|
m_char_set(DEFAULT_CHARSET),
|
|
m_pitch_and_family(FF_DONTCARE),
|
|
m_hinting(true),
|
|
m_flip_y(false),
|
|
m_font_created(false),
|
|
m_resolution(0),
|
|
m_glyph_rendering(glyph_ren_native_gray8),
|
|
m_glyph_index(0),
|
|
m_data_size(0),
|
|
m_data_type(glyph_data_invalid),
|
|
m_bounds(1,1,0,0),
|
|
m_advance_x(0.0),
|
|
m_advance_y(0.0),
|
|
m_gbuf(new char [buf_size]),
|
|
m_kerning_pairs(0),
|
|
m_num_kerning_pairs(0),
|
|
m_max_kerning_pairs(0),
|
|
|
|
m_path16(),
|
|
m_path32(),
|
|
m_curves16(m_path16),
|
|
m_curves32(m_path32),
|
|
m_scanline_aa(),
|
|
m_scanline_bin(),
|
|
m_scanlines_aa(),
|
|
m_scanlines_bin(),
|
|
m_rasterizer()
|
|
{
|
|
m_curves16.approximation_scale(4.0);
|
|
m_curves32.approximation_scale(4.0);
|
|
std::memset(&m_matrix, 0, sizeof(m_matrix));
|
|
m_matrix.eM11.value = 1;
|
|
m_matrix.eM22.value = 1;
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
int font_engine_win32_tt_base::find_font(const char* name) const
|
|
{
|
|
unsigned i;
|
|
for(i = 0; i < m_num_fonts; ++i)
|
|
{
|
|
if(std::strcmp(name, m_font_names[i]) == 0) return i;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
//------------------------------------------------------------------------
|
|
bool font_engine_win32_tt_base::create_font(const char* typeface_,
|
|
glyph_rendering ren_type)
|
|
{
|
|
if(m_dc)
|
|
{
|
|
unsigned len = strlen(typeface_);
|
|
if(len > m_typeface_len)
|
|
{
|
|
delete [] m_signature;
|
|
delete [] m_typeface;
|
|
m_typeface = new char [len + 32];
|
|
m_signature = new char [len + 32 + 256];
|
|
m_typeface_len = len + 32 - 1;
|
|
}
|
|
|
|
strcpy(m_typeface, typeface_);
|
|
|
|
int h = m_height;
|
|
int w = m_width;
|
|
|
|
if(m_resolution)
|
|
{
|
|
h = ::MulDiv(m_height, m_resolution, 72);
|
|
w = ::MulDiv(m_width, m_resolution, 72);
|
|
}
|
|
|
|
m_glyph_rendering = ren_type;
|
|
update_signature();
|
|
int idx = find_font(m_signature);
|
|
if(idx >= 0)
|
|
{
|
|
m_cur_font = m_fonts[idx];
|
|
::SelectObject(m_dc, m_cur_font);
|
|
m_num_kerning_pairs = 0;
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
m_cur_font = ::CreateFont(-h, // height of font
|
|
w, // average character width
|
|
0, // angle of escapement
|
|
0, // base-line orientation angle
|
|
m_weight, // font weight
|
|
m_italic, // italic attribute option
|
|
0, // underline attribute option
|
|
0, // strikeout attribute option
|
|
m_char_set, // character set identifier
|
|
OUT_DEFAULT_PRECIS, // output precision
|
|
CLIP_DEFAULT_PRECIS, // clipping precision
|
|
ANTIALIASED_QUALITY, // output quality
|
|
m_pitch_and_family, // pitch and family
|
|
m_typeface); // typeface name
|
|
if(m_cur_font)
|
|
{
|
|
if(m_num_fonts >= m_max_fonts)
|
|
{
|
|
delete [] m_font_names[0];
|
|
if(m_old_font) ::SelectObject(m_dc, m_old_font);
|
|
::DeleteObject(m_fonts[0]);
|
|
std::memcpy(m_fonts,
|
|
m_fonts + 1,
|
|
(m_max_fonts - 1) * sizeof(HFONT));
|
|
std::memcpy(m_font_names,
|
|
m_font_names + 1,
|
|
(m_max_fonts - 1) * sizeof(char*));
|
|
m_num_fonts = m_max_fonts - 1;
|
|
}
|
|
|
|
update_signature();
|
|
m_font_names[m_num_fonts] = new char[std::strlen(m_signature) + 1];
|
|
std::strcpy(m_font_names[m_num_fonts], m_signature);
|
|
m_fonts[m_num_fonts] = m_cur_font;
|
|
++m_num_fonts;
|
|
::SelectObject(m_dc, m_cur_font);
|
|
m_num_kerning_pairs = 0;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
bool font_engine_win32_tt_base::create_font(const char* typeface_,
|
|
glyph_rendering ren_type,
|
|
double height_,
|
|
double width_,
|
|
int weight_,
|
|
bool italic_,
|
|
DWORD char_set_,
|
|
DWORD pitch_and_family_)
|
|
{
|
|
height(height_);
|
|
width(width_);
|
|
weight(weight_);
|
|
italic(italic_);
|
|
char_set(char_set_);
|
|
pitch_and_family(pitch_and_family_);
|
|
return create_font(typeface_, ren_type);
|
|
}
|
|
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
void font_engine_win32_tt_base::update_signature()
|
|
{
|
|
m_signature[0] = 0;
|
|
if(m_dc && m_cur_font)
|
|
{
|
|
unsigned gamma_hash = 0;
|
|
if(m_glyph_rendering == glyph_ren_native_gray8 ||
|
|
m_glyph_rendering == glyph_ren_agg_mono ||
|
|
m_glyph_rendering == glyph_ren_agg_gray8)
|
|
{
|
|
unsigned char gamma_table[rasterizer_scanline_aa<>::aa_scale];
|
|
unsigned i;
|
|
for(i = 0; i < rasterizer_scanline_aa<>::aa_scale; ++i)
|
|
{
|
|
gamma_table[i] = m_rasterizer.apply_gamma(i);
|
|
}
|
|
gamma_hash = calc_crc32(gamma_table, sizeof(gamma_table));
|
|
}
|
|
|
|
sprintf(m_signature,
|
|
"%s,%u,%d,%d:%dx%d,%d,%d,%d,%d,%d,%08X",
|
|
m_typeface,
|
|
m_char_set,
|
|
int(m_glyph_rendering),
|
|
m_resolution,
|
|
m_height,
|
|
m_width,
|
|
m_weight,
|
|
int(m_italic),
|
|
int(m_hinting),
|
|
int(m_flip_y),
|
|
int(m_pitch_and_family),
|
|
gamma_hash);
|
|
|
|
if(m_glyph_rendering == glyph_ren_outline ||
|
|
m_glyph_rendering == glyph_ren_agg_mono ||
|
|
m_glyph_rendering == glyph_ren_agg_gray8)
|
|
{
|
|
double mtx[6];
|
|
char buf[100];
|
|
m_affine.store_to(mtx);
|
|
std::sprintf(buf, ",%08X%08X%08X%08X%08X%08X",
|
|
dbl_to_plain_fx(mtx[0]),
|
|
dbl_to_plain_fx(mtx[1]),
|
|
dbl_to_plain_fx(mtx[2]),
|
|
dbl_to_plain_fx(mtx[3]),
|
|
dbl_to_plain_fx(mtx[4]),
|
|
dbl_to_plain_fx(mtx[5]));
|
|
std::strcat(m_signature, buf);
|
|
}
|
|
++m_change_stamp;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
bool font_engine_win32_tt_base::prepare_glyph(unsigned glyph_code)
|
|
{
|
|
if(m_dc && m_cur_font)
|
|
{
|
|
int format = GGO_BITMAP;
|
|
|
|
switch(m_glyph_rendering)
|
|
{
|
|
case glyph_ren_native_gray8:
|
|
format = GGO_GRAY8_BITMAP;
|
|
break;
|
|
|
|
case glyph_ren_outline:
|
|
case glyph_ren_agg_mono:
|
|
case glyph_ren_agg_gray8:
|
|
format = GGO_NATIVE;
|
|
break;
|
|
}
|
|
|
|
#ifndef GGO_UNHINTED // For compatibility with old SDKs.
|
|
#define GGO_UNHINTED 0x0100
|
|
#endif
|
|
if(!m_hinting) format |= GGO_UNHINTED;
|
|
|
|
GLYPHMETRICS gm;
|
|
int total_size = GetGlyphOutlineX(m_dc,
|
|
glyph_code,
|
|
format,
|
|
&gm,
|
|
buf_size,
|
|
(void*)m_gbuf,
|
|
&m_matrix);
|
|
|
|
if(total_size < 0)
|
|
{
|
|
// GetGlyphOutline() fails when being called for
|
|
// GGO_GRAY8_BITMAP and white space (stupid Microsoft).
|
|
// It doesn't even initialize the glyph metrics
|
|
// structure. So, we have to query the metrics
|
|
// separately (basically we need gmCellIncX).
|
|
int total_size = GetGlyphOutlineX(m_dc,
|
|
glyph_code,
|
|
GGO_METRICS,
|
|
&gm,
|
|
buf_size,
|
|
(void*)m_gbuf,
|
|
&m_matrix);
|
|
|
|
if(total_size < 0) return false;
|
|
gm.gmBlackBoxX = gm.gmBlackBoxY = 0;
|
|
total_size = 0;
|
|
}
|
|
|
|
m_glyph_index = glyph_code;
|
|
m_advance_x = gm.gmCellIncX;
|
|
m_advance_y = -gm.gmCellIncY;
|
|
|
|
switch(m_glyph_rendering)
|
|
{
|
|
case glyph_ren_native_mono:
|
|
decompose_win32_glyph_bitmap_mono(m_gbuf,
|
|
gm.gmBlackBoxX,
|
|
gm.gmBlackBoxY,
|
|
gm.gmptGlyphOrigin.x,
|
|
m_flip_y ? -gm.gmptGlyphOrigin.y :
|
|
gm.gmptGlyphOrigin.y,
|
|
m_flip_y,
|
|
m_scanline_bin,
|
|
m_scanlines_bin);
|
|
m_bounds.x1 = m_scanlines_bin.min_x();
|
|
m_bounds.y1 = m_scanlines_bin.min_y();
|
|
m_bounds.x2 = m_scanlines_bin.max_x() + 1;
|
|
m_bounds.y2 = m_scanlines_bin.max_y() + 1;
|
|
m_data_size = m_scanlines_bin.byte_size();
|
|
m_data_type = glyph_data_mono;
|
|
return true;
|
|
|
|
case glyph_ren_native_gray8:
|
|
decompose_win32_glyph_bitmap_gray8(m_gbuf,
|
|
gm.gmBlackBoxX,
|
|
gm.gmBlackBoxY,
|
|
gm.gmptGlyphOrigin.x,
|
|
m_flip_y ? -gm.gmptGlyphOrigin.y :
|
|
gm.gmptGlyphOrigin.y,
|
|
m_flip_y,
|
|
m_rasterizer,
|
|
m_scanline_aa,
|
|
m_scanlines_aa);
|
|
m_bounds.x1 = m_scanlines_aa.min_x();
|
|
m_bounds.y1 = m_scanlines_aa.min_y();
|
|
m_bounds.x2 = m_scanlines_aa.max_x() + 1;
|
|
m_bounds.y2 = m_scanlines_aa.max_y() + 1;
|
|
m_data_size = m_scanlines_aa.byte_size();
|
|
m_data_type = glyph_data_gray8;
|
|
return true;
|
|
|
|
case glyph_ren_outline:
|
|
m_affine.transform(&m_advance_x, &m_advance_y);
|
|
if(m_flag32)
|
|
{
|
|
m_path32.remove_all();
|
|
if(decompose_win32_glyph_outline(m_gbuf,
|
|
total_size,
|
|
m_flip_y,
|
|
m_affine,
|
|
m_path32))
|
|
{
|
|
rect_d bnd = m_path32.bounding_rect();
|
|
m_data_size = m_path32.byte_size();
|
|
m_data_type = glyph_data_outline;
|
|
m_bounds.x1 = int(floor(bnd.x1));
|
|
m_bounds.y1 = int(floor(bnd.y1));
|
|
m_bounds.x2 = int(ceil(bnd.x2));
|
|
m_bounds.y2 = int(ceil(bnd.y2));
|
|
return true;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_path16.remove_all();
|
|
if(decompose_win32_glyph_outline(m_gbuf,
|
|
total_size,
|
|
m_flip_y,
|
|
m_affine,
|
|
m_path16))
|
|
{
|
|
rect_d bnd = m_path16.bounding_rect();
|
|
m_data_size = m_path16.byte_size();
|
|
m_data_type = glyph_data_outline;
|
|
m_bounds.x1 = int(floor(bnd.x1));
|
|
m_bounds.y1 = int(floor(bnd.y1));
|
|
m_bounds.x2 = int(ceil(bnd.x2));
|
|
m_bounds.y2 = int(ceil(bnd.y2));
|
|
return true;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case glyph_ren_agg_mono:
|
|
m_rasterizer.reset();
|
|
m_affine.transform(&m_advance_x, &m_advance_y);
|
|
if(m_flag32)
|
|
{
|
|
m_path32.remove_all();
|
|
decompose_win32_glyph_outline(m_gbuf,
|
|
total_size,
|
|
m_flip_y,
|
|
m_affine,
|
|
m_path32);
|
|
m_rasterizer.add_path(m_curves32);
|
|
}
|
|
else
|
|
{
|
|
m_path16.remove_all();
|
|
decompose_win32_glyph_outline(m_gbuf,
|
|
total_size,
|
|
m_flip_y,
|
|
m_affine,
|
|
m_path16);
|
|
m_rasterizer.add_path(m_curves16);
|
|
}
|
|
m_scanlines_bin.prepare(); // Remove all
|
|
render_scanlines(m_rasterizer, m_scanline_bin, m_scanlines_bin);
|
|
m_bounds.x1 = m_scanlines_bin.min_x();
|
|
m_bounds.y1 = m_scanlines_bin.min_y();
|
|
m_bounds.x2 = m_scanlines_bin.max_x() + 1;
|
|
m_bounds.y2 = m_scanlines_bin.max_y() + 1;
|
|
m_data_size = m_scanlines_bin.byte_size();
|
|
m_data_type = glyph_data_mono;
|
|
return true;
|
|
|
|
case glyph_ren_agg_gray8:
|
|
m_rasterizer.reset();
|
|
m_affine.transform(&m_advance_x, &m_advance_y);
|
|
if(m_flag32)
|
|
{
|
|
m_path32.remove_all();
|
|
decompose_win32_glyph_outline(m_gbuf,
|
|
total_size,
|
|
m_flip_y,
|
|
m_affine,
|
|
m_path32);
|
|
m_rasterizer.add_path(m_curves32);
|
|
}
|
|
else
|
|
{
|
|
m_path16.remove_all();
|
|
decompose_win32_glyph_outline(m_gbuf,
|
|
total_size,
|
|
m_flip_y,
|
|
m_affine,
|
|
m_path16);
|
|
m_rasterizer.add_path(m_curves16);
|
|
}
|
|
m_scanlines_aa.prepare(); // Remove all
|
|
render_scanlines(m_rasterizer, m_scanline_aa, m_scanlines_aa);
|
|
m_bounds.x1 = m_scanlines_aa.min_x();
|
|
m_bounds.y1 = m_scanlines_aa.min_y();
|
|
m_bounds.x2 = m_scanlines_aa.max_x() + 1;
|
|
m_bounds.y2 = m_scanlines_aa.max_y() + 1;
|
|
m_data_size = m_scanlines_aa.byte_size();
|
|
m_data_type = glyph_data_gray8;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
void font_engine_win32_tt_base::write_glyph_to(int8u* data) const
|
|
{
|
|
if(data && m_data_size)
|
|
{
|
|
switch(m_data_type)
|
|
{
|
|
case glyph_data_mono: m_scanlines_bin.serialize(data); break;
|
|
case glyph_data_gray8: m_scanlines_aa.serialize(data); break;
|
|
case glyph_data_outline:
|
|
if(m_flag32)
|
|
{
|
|
m_path32.serialize(data);
|
|
}
|
|
else
|
|
{
|
|
m_path16.serialize(data);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
static bool pair_less(const KERNINGPAIR& v1, const KERNINGPAIR& v2)
|
|
{
|
|
if(v1.wFirst != v2.wFirst) return v1.wFirst < v2.wFirst;
|
|
return v1.wSecond < v2.wSecond;
|
|
}
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
void font_engine_win32_tt_base::sort_kerning_pairs()
|
|
{
|
|
pod_array_adaptor<KERNINGPAIR> pairs(m_kerning_pairs, m_num_kerning_pairs);
|
|
quick_sort(pairs, pair_less);
|
|
}
|
|
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
void font_engine_win32_tt_base::load_kerning_pairs()
|
|
{
|
|
if(m_dc && m_cur_font)
|
|
{
|
|
if(m_kerning_pairs == 0)
|
|
{
|
|
m_kerning_pairs = new KERNINGPAIR [16384-16];
|
|
m_max_kerning_pairs = 16384-16;
|
|
}
|
|
m_num_kerning_pairs = ::GetKerningPairs(m_dc,
|
|
m_max_kerning_pairs,
|
|
m_kerning_pairs);
|
|
|
|
if(m_num_kerning_pairs)
|
|
{
|
|
// Check to see if the kerning pairs are sorted and
|
|
// sort them if they are not.
|
|
//----------------
|
|
unsigned i;
|
|
for(i = 1; i < m_num_kerning_pairs; ++i)
|
|
{
|
|
if(!pair_less(m_kerning_pairs[i - 1], m_kerning_pairs[i]))
|
|
{
|
|
sort_kerning_pairs();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//------------------------------------------------------------------------
|
|
bool font_engine_win32_tt_base::add_kerning(unsigned first, unsigned second,
|
|
double* x, double* y)
|
|
{
|
|
if(m_dc && m_cur_font)
|
|
{
|
|
if(m_num_kerning_pairs == 0)
|
|
{
|
|
load_kerning_pairs();
|
|
}
|
|
|
|
int end = m_num_kerning_pairs - 1;
|
|
int beg = 0;
|
|
KERNINGPAIR t;
|
|
t.wFirst = (WORD)first;
|
|
t.wSecond = (WORD)second;
|
|
while(beg <= end)
|
|
{
|
|
int mid = (end + beg) / 2;
|
|
if(m_kerning_pairs[mid].wFirst == t.wFirst &&
|
|
m_kerning_pairs[mid].wSecond == t.wSecond)
|
|
{
|
|
double dx = m_kerning_pairs[mid].iKernAmount;
|
|
double dy = 0.0;
|
|
if(m_glyph_rendering == glyph_ren_outline ||
|
|
m_glyph_rendering == glyph_ren_agg_mono ||
|
|
m_glyph_rendering == glyph_ren_agg_gray8)
|
|
{
|
|
m_affine.transform_2x2(&dx, &dy);
|
|
}
|
|
*x += dx;
|
|
*y += dy;
|
|
return true;
|
|
}
|
|
else
|
|
if(pair_less(t, m_kerning_pairs[mid]))
|
|
{
|
|
end = mid - 1;
|
|
}
|
|
else
|
|
{
|
|
beg = mid + 1;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|