ReceiveTempSMS
/
Al-Qurtas-Islamic-bank-The-Best-Bank-in-Iraq
forked from minhngoc25a/freetype2
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[raster] Fix 5-levels grayscale output. 

This was broken since version 2.3.0.

* src/raster/ftraster.c (count_table): Use pre-2.3.0 values (which
were then computed dynamically).
(Vertical_Gray_Sweep_Step): Updated.

(ft_black_render): Initialize `worker->gray_lines' (problem found by
valgrind).

(FT_RASTER_OPTION_ANTI_ALIASING, DEBUG_RASTER): Dont' #undef, just
comment out.
This commit is contained in:
Werner Lemberg 2009-09-12 23:15:17 +02:00
parent 812d1bc90d
commit 766b822f4c
2 changed files with 81 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
ChangeLog
View File

@ -1,3 +1,18 @@
2009-09-12 Werner Lemberg <wl@gnu.org>
[raster] Fix 5-levels grayscale output.
This was broken since version 2.3.0.
* src/raster/ftraster.c (count_table): Use pre-2.3.0 values (which
were then computed dynamically).
(Vertical_Gray_Sweep_Step): Updated.
(ft_black_render): Initialize `worker->gray_lines' (problem found by
valgrind).
(FT_RASTER_OPTION_ANTI_ALIASING, DEBUG_RASTER): Dont' #undef, just
comment out.
2009-09-12 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
Improve configure.raw for cross build.

93
src/raster/ftraster.c
View File

@ -51,7 +51,7 @@
#define FT_CONFIG_STANDARD_LIBRARY_H <stdlib.h>
#include <string.h>
#include <string.h> /* for memset */
#include "ftmisc.h"
#include "ftimage.h"
@ -148,11 +148,11 @@
/*************************************************************************/
/* define DEBUG_RASTER if you want to compile a debugging version */
#define xxxDEBUG_RASTER
/* #define DEBUG_RASTER */
/* undefine FT_RASTER_OPTION_ANTI_ALIASING if you do not want to support */
/* 5-levels anti-aliasing */
#undef FT_RASTER_OPTION_ANTI_ALIASING
/* define FT_RASTER_OPTION_ANTI_ALIASING if you want to support */
/* 5-levels anti-aliasing */
/* #define FT_RASTER_OPTION_ANTI_ALIASING */
/* The size of the two-lines intermediate bitmap used */
/* for anti-aliasing, in bytes. */
@ -567,24 +567,62 @@
#ifdef FT_RASTER_OPTION_ANTI_ALIASING
static const char count_table[256] =
/* A lookup table used to quickly count set bits in four gray 2x2 */
/* cells. The values of the table have been produced with the */
/* following code: */
/* */
/* for ( i = 0; i < 256; i++ ) */
/* { */
/* l = 0; */
/* j = i; */
/* */
/* for ( c = 0; c < 4; c++ ) */
/* { */
/* l <<= 4; */
/* */
/* if ( j & 0x80 ) l++; */
/* if ( j & 0x40 ) l++; */
/* */
/* j = ( j << 2 ) & 0xFF; */
/* } */
/* printf( "0x%04X", l ); */
/* } */
/* */
static const short count_table[256] =
{
0 , 1 , 1 , 2 , 1 , 2 , 2 , 3 , 1 , 2 , 2 , 3 , 2 , 3 , 3 , 4,
1 , 2 , 2 , 3 , 2 , 3 , 3 , 4 , 2 , 3 , 3 , 4 , 3 , 4 , 4 , 5,
1 , 2 , 2 , 3 , 2 , 3 , 3 , 4 , 2 , 3 , 3 , 4 , 3 , 4 , 4 , 5,
2 , 3 , 3 , 4 , 3 , 4 , 4 , 5 , 3 , 4 , 4 , 5 , 4 , 5 , 5 , 6,
1 , 2 , 2 , 3 , 2 , 3 , 3 , 4 , 2 , 3 , 3 , 4 , 3 , 4 , 4 , 5,
2 , 3 , 3 , 4 , 3 , 4 , 4 , 5 , 3 , 4 , 4 , 5 , 4 , 5 , 5 , 6,
2 , 3 , 3 , 4 , 3 , 4 , 4 , 5 , 3 , 4 , 4 , 5 , 4 , 5 , 5 , 6,
3 , 4 , 4 , 5 , 4 , 5 , 5 , 6 , 4 , 5 , 5 , 6 , 5 , 6 , 6 , 7,
1 , 2 , 2 , 3 , 2 , 3 , 3 , 4 , 2 , 3 , 3 , 4 , 3 , 4 , 4 , 5,
2 , 3 , 3 , 4 , 3 , 4 , 4 , 5 , 3 , 4 , 4 , 5 , 4 , 5 , 5 , 6,
2 , 3 , 3 , 4 , 3 , 4 , 4 , 5 , 3 , 4 , 4 , 5 , 4 , 5 , 5 , 6,
3 , 4 , 4 , 5 , 4 , 5 , 5 , 6 , 4 , 5 , 5 , 6 , 5 , 6 , 6 , 7,
2 , 3 , 3 , 4 , 3 , 4 , 4 , 5 , 3 , 4 , 4 , 5 , 4 , 5 , 5 , 6,
3 , 4 , 4 , 5 , 4 , 5 , 5 , 6 , 4 , 5 , 5 , 6 , 5 , 6 , 6 , 7,
3 , 4 , 4 , 5 , 4 , 5 , 5 , 6 , 4 , 5 , 5 , 6 , 5 , 6 , 6 , 7,
4 , 5 , 5 , 6 , 5 , 6 , 6 , 7 , 5 , 6 , 6 , 7 , 6 , 7 , 7 , 8
0x0000, 0x0001, 0x0001, 0x0002, 0x0010, 0x0011, 0x0011, 0x0012,
0x0010, 0x0011, 0x0011, 0x0012, 0x0020, 0x0021, 0x0021, 0x0022,
0x0100, 0x0101, 0x0101, 0x0102, 0x0110, 0x0111, 0x0111, 0x0112,
0x0110, 0x0111, 0x0111, 0x0112, 0x0120, 0x0121, 0x0121, 0x0122,
0x0100, 0x0101, 0x0101, 0x0102, 0x0110, 0x0111, 0x0111, 0x0112,
0x0110, 0x0111, 0x0111, 0x0112, 0x0120, 0x0121, 0x0121, 0x0122,
0x0200, 0x0201, 0x0201, 0x0202, 0x0210, 0x0211, 0x0211, 0x0212,
0x0210, 0x0211, 0x0211, 0x0212, 0x0220, 0x0221, 0x0221, 0x0222,
0x1000, 0x1001, 0x1001, 0x1002, 0x1010, 0x1011, 0x1011, 0x1012,
0x1010, 0x1011, 0x1011, 0x1012, 0x1020, 0x1021, 0x1021, 0x1022,
0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112,
0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122,
0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112,
0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122,
0x1200, 0x1201, 0x1201, 0x1202, 0x1210, 0x1211, 0x1211, 0x1212,
0x1210, 0x1211, 0x1211, 0x1212, 0x1220, 0x1221, 0x1221, 0x1222,
0x1000, 0x1001, 0x1001, 0x1002, 0x1010, 0x1011, 0x1011, 0x1012,
0x1010, 0x1011, 0x1011, 0x1012, 0x1020, 0x1021, 0x1021, 0x1022,
0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112,
0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122,
0x1100, 0x1101, 0x1101, 0x1102, 0x1110, 0x1111, 0x1111, 0x1112,
0x1110, 0x1111, 0x1111, 0x1112, 0x1120, 0x1121, 0x1121, 0x1122,
0x1200, 0x1201, 0x1201, 0x1202, 0x1210, 0x1211, 0x1211, 0x1212,
0x1210, 0x1211, 0x1211, 0x1212, 0x1220, 0x1221, 0x1221, 0x1222,
0x2000, 0x2001, 0x2001, 0x2002, 0x2010, 0x2011, 0x2011, 0x2012,
0x2010, 0x2011, 0x2011, 0x2012, 0x2020, 0x2021, 0x2021, 0x2022,
0x2100, 0x2101, 0x2101, 0x2102, 0x2110, 0x2111, 0x2111, 0x2112,
0x2110, 0x2111, 0x2111, 0x2112, 0x2120, 0x2121, 0x2121, 0x2122,
0x2100, 0x2101, 0x2101, 0x2102, 0x2110, 0x2111, 0x2111, 0x2112,
0x2110, 0x2111, 0x2111, 0x2112, 0x2120, 0x2121, 0x2121, 0x2122,
0x2200, 0x2201, 0x2201, 0x2202, 0x2210, 0x2211, 0x2211, 0x2212,
0x2210, 0x2211, 0x2211, 0x2212, 0x2220, 0x2221, 0x2221, 0x2222
};
#endif /* FT_RASTER_OPTION_ANTI_ALIASING */
@ -2635,10 +2673,10 @@
static void
Vertical_Gray_Sweep_Step( RAS_ARG )
{
Int c1, c2;
PByte pix, bit, bit2;
char* count = (char*)count_table;
Byte* grays;
Int c1, c2;
PByte pix, bit, bit2;
short* count = (short*)count_table;
Byte* grays;
ras.traceOfs += ras.gray_width;
@ -3326,7 +3364,6 @@
raster->grays[n] = n * 255 / 4;
raster->gray_width = RASTER_GRAY_LINES / 2;
#else
FT_UNUSED( raster );
#endif
@ -3503,6 +3540,8 @@
#ifdef FT_RASTER_OPTION_ANTI_ALIASING
worker->grays = raster->grays;
worker->gray_width = raster->gray_width;
FT_MEM_ZERO( worker->gray_lines, worker->gray_width * 2 );
#endif
return ( params->flags & FT_RASTER_FLAG_AA )