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

[smooth] Sanitize memory managenent. 

* src/smooth/ftgrays.c (gray_convert_glyph): Cleaned up.
This commit is contained in:
Alexei Podtelezhnikov 2016-06-20 00:01:55 -04:00
parent 74fd251b4a
commit 3c64af98ff
2 changed files with 23 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
ChangeLog
View File

@ -1,3 +1,9 @@
2016-06-20 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Sanitize memory managenent.
* src/smooth/ftgrays.c (gray_convert_glyph): Cleaned up.
2016-06-18 Alexei Podtelezhnikov <apodtele@gmail.com>
[smooth] Remove `band_shoot' that never worked.

42
src/smooth/ftgrays.c
View File

@ -1937,34 +1937,26 @@ typedef ptrdiff_t FT_PtrDist;
TPos bottom, top, middle;
int error;
{
PCell cells_max;
int yindex;
long cell_start, cell_end, cell_mod;
/* memory management */
{
int ycount = band->max - band->min;
int cell_start;
cell_start = ( ycount * sizeof( PCell ) + sizeof( TCell ) - 1 ) /
sizeof( TCell );
if ( FT_MAX_GRAY_POOL - cell_start < 2 )
goto ReduceBands;
ras.cells = (PCell)ras.buffer + cell_start;
ras.max_cells = FT_MAX_GRAY_POOL - cell_start;
ras.ycells = (PCell*)ras.buffer;
ras.ycount = band->max - band->min;
cell_start = (long)sizeof ( PCell ) * ras.ycount;
cell_mod = cell_start % (long)sizeof ( TCell );
if ( cell_mod > 0 )
cell_start += (long)sizeof ( TCell ) - cell_mod;
cell_end = ras.buffer_size;
cell_end -= cell_end % (long)sizeof ( TCell );
cells_max = (PCell)( (char*)ras.buffer + cell_end );
ras.cells = (PCell)( (char*)ras.buffer + cell_start );
if ( ras.cells >= cells_max )
goto ReduceBands;
ras.max_cells = cells_max - ras.cells;
if ( ras.max_cells < 2 )
goto ReduceBands;
for ( yindex = 0; yindex < ras.ycount; yindex++ )
ras.ycells[yindex] = NULL;
ras.ycount = ycount;
while ( ycount )
ras.ycells[--ycount] = NULL;
}
ras.num_cells = 0;