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[pk] Fixes.

This commit is contained in:
Parth Wazurkar 2018-07-13 01:14:58 +05:30
parent 460fe90b59
commit ab75cfedd0
3 changed files with 85 additions and 69 deletions
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4
include/freetype/internal/fttrace.h
View File

@ -123,6 +123,10 @@ FT_TRACE_DEF( gflib )
/* TFM helper module components */
FT_TRACE_DEF( tfmobjs )
/* PK font components */
FT_TRACE_DEF( pkdriver )
FT_TRACE_DEF( pklib )
/* PFR font component */
FT_TRACE_DEF( pfr )

3
modules.cfg
View File

@ -70,6 +70,9 @@ FONT_MODULES += bdf
# GF font driver.
FONT_MODULES += gf
# PK font driver.
FONT_MODULES += pk
# SFNT files support. If used without `truetype' or `cff', it supports
# bitmap-only fonts within an SFNT wrapper.
#

147
src/pk/pklib.c
View File

@ -54,8 +54,12 @@ unsigned char bit_table[] = {
unsigned long pk_read_uintn(FT_Stream,int);
#define READ_UINT1( stream ) (UINT1)pk_read_uintn( stream, 1)
#define READ_UINT2( stream ) (UINT1)pk_read_uintn( stream, 2)
#define READ_UINT3( stream ) (UINT1)pk_read_uintn( stream, 3)
#define READ_UINT4( stream ) (UINT1)pk_read_uintn( stream, 4)
#define READ_UINTN( stream,n) (UINT4)pk_read_uintn( stream, n)
#define READ_INT1( stream ) (INT1)pk_read_intn( stream, 1)
#define READ_INT2( stream ) (INT1)pk_read_intn( stream, 2)
#define READ_INT4( stream ) (INT4)pk_read_intn( stream, 4)
/*
@ -104,6 +108,72 @@ unsigned char bit_table[] = {
return v;
}
int pk_read_nyble_rest_cnt;
int pk_read_nyble_max_bytes;
void
pk_read_nyble_init(int max)
{
pk_read_nyble_rest_cnt = 0;
pk_read_nyble_max_bytes = max;
}
int
pk_read_nyble(FT_Stream stream)
{
static UINT1 d;
int v;
switch (pk_read_nyble_rest_cnt)
{
case 0:
d = READ_UINT1( stream );
if (--pk_read_nyble_max_bytes < 0)
return -1L;
v = d / 0x10;
d = d % 0x10;
pk_read_nyble_rest_cnt = 1;
break;
case 1:
default:
v = d;
pk_read_nyble_rest_cnt = 0;
break;
}
return v;
}
long
pk_read_packed_number(long* repeat, FT_Stream stream, int dyn_f)
{
int d, n;
long di;
entry:
d = pk_read_nyble( stream );
if (d == 0)
{
n = 0;
do
{
di = pk_read_nyble( stream );
n++;
}
while (di == 0);
for ( ; n > 0; n--)
di = di*16 + pk_read_nyble( stream );
return di - 15 + (13 - dyn_f)*16 + dyn_f;
}
if (d <= dyn_f)
return d;
if (d <= 13)
return (d - dyn_f - 1)*16 + pk_read_nyble( stream ) + dyn_f + 1;
*repeat = 1;
if (d == 14)
*repeat = pk_read_packed_number(repeat, stream, dyn_f);
goto entry;
}
int
pk_read_14(FT_Stream stream, int dyn_f, int bw, UINT4 rs, PK_Bitmap bm, long cc)
{
@ -205,73 +275,6 @@ unsigned char bit_table[] = {
return 0;
}
long
pk_read_packed_number(long* repeat, FT_Stream, int dyn_f)
{
int d, n;
long di;
entry:
d = pk_read_nyble( stream );
if (d == 0)
{
n = 0;
do
{
di = pk_read_nyble( stream );
n++;
}
while (di == 0);
for ( ; n > 0; n--)
di = di*16 + pk_read_nyble( stream );
return di - 15 + (13 - dyn_f)*16 + dyn_f;
}
if (d <= dyn_f)
return d;
if (d <= 13)
return (d - dyn_f - 1)*16 + pk_read_nyble( stream ) + dyn_f + 1;
*repeat = 1;
if (d == 14)
*repeat = pk_read_packed_number(repeat, stream, dyn_f);
goto entry;
}
int pk_read_nyble_rest_cnt;
int pk_read_nyble_max_bytes;
void
pk_read_nyble_init(int max)
{
pk_read_nyble_rest_cnt = 0;
pk_read_nyble_max_bytes = max;
}
int
pk_read_nyble(FT_Stream stream)
{
static UINT1 d;
int v;
switch (pk_read_nyble_rest_cnt)
{
case 0:
d = READ_UINT1( stream );
if (--pk_read_nyble_max_bytes < 0)
return -1L;
v = d / 0x10;
d = d % 0x10;
pk_read_nyble_rest_cnt = 1;
break;
case 1:
default:
v = d;
pk_read_nyble_rest_cnt = 0;
break;
}
return v;
}
/**************************************************************************
*
* API.
@ -291,8 +294,13 @@ unsigned char bit_table[] = {
INT4 hoff, voff, mv_x, mv_y;
long gptr;
int bc, ec, nchars, index, i;
FT_Error error = FT_Err_Ok;
FT_Memory memory = extmemory; /* needed for FT_NEW */
k = READ_UINT1( stream );
go = NULL;
nchars = -1;
k = READ_UINT1( stream );
if ( FT_STREAM_SKIP( k ) )
goto Exit;
ds = READ_UINT4( stream );
@ -518,13 +526,14 @@ unsigned char bit_table[] = {
}
FT_FREE(go->bm_table);
FT_FREE(go);
return error;
}
FT_LOCAL_DEF( void )
pk_free_font( PK_Face face )
{
FT_Memory memory = FT_FACE( face )->memory;
GF_Glyph go = face->pk_glyph;
PK_Glyph go = face->pk_glyph;
FT_UInt nchars = FT_FACE( face )->num_glyphs,i;
if ( !go )