Make sure that parse_t2_real correctly parses a CFF real number. Added more comments
to the function.
This commit is contained in:
parent
ef0af208a0
commit
a51b45c607
|
@ -153,7 +153,7 @@
|
|||
FT_Byte* limit,
|
||||
FT_Int power_ten )
|
||||
{
|
||||
FT_Byte* p = ++start;
|
||||
FT_Byte* p = start;
|
||||
FT_Long num, divider, result, exp;
|
||||
FT_Int sign = 0, exp_sign = 0;
|
||||
FT_Byte nib;
|
||||
|
@ -166,14 +166,20 @@
|
|||
|
||||
/* first of all, read the integer part */
|
||||
phase = 4;
|
||||
p--;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
/* read one nibble at a time */
|
||||
if ( phase && ++p >= limit )
|
||||
|
||||
/* If we entered this iteration with phase == 4, we need to */
|
||||
/* read a new byte. This also skips past the intial 0x1E. */
|
||||
if ( phase )
|
||||
p++;
|
||||
|
||||
/* Make sure we don't read past the end. */
|
||||
if ( p >= limit )
|
||||
goto Bad;
|
||||
|
||||
/* Get the nibble. */
|
||||
nib = ( p[0] >> phase ) & 0xF;
|
||||
phase = 4 - phase;
|
||||
|
||||
|
@ -189,13 +195,19 @@
|
|||
if ( nib == 0xa )
|
||||
for (;;)
|
||||
{
|
||||
/* read one nibble at a time */
|
||||
if ( !phase && ++p >= limit )
|
||||
|
||||
/* If we entered this iteration with phase == 4, we need */
|
||||
/* to read a new byte. */
|
||||
if ( phase )
|
||||
p++;
|
||||
|
||||
/* Make sure we don't read past the end. */
|
||||
if ( p >= limit )
|
||||
goto Bad;
|
||||
|
||||
phase = 4 - phase;
|
||||
/* Get the nibble. */
|
||||
nib = ( p[0] >> phase ) & 0xF;
|
||||
|
||||
phase = 4 - phase;
|
||||
if ( nib >= 10 )
|
||||
break;
|
||||
|
||||
|
@ -219,13 +231,18 @@
|
|||
|
||||
for (;;)
|
||||
{
|
||||
/* read one nibble at a time */
|
||||
if ( !phase && ++p >= limit )
|
||||
/* If we entered this iteration with phase == 4, we need */
|
||||
/* to read a new byte. */
|
||||
if ( phase )
|
||||
p++;
|
||||
|
||||
/* Make sure we don't read past the end. */
|
||||
if ( p >= limit )
|
||||
goto Bad;
|
||||
|
||||
phase = 4 - phase;
|
||||
/* Get the nibble. */
|
||||
nib = ( p[0] >> phase ) & 0xF;
|
||||
|
||||
phase = 4 - phase;
|
||||
if ( nib >= 10 )
|
||||
break;
|
||||
|
||||
|
|
Loading…
Reference in New Issue