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Revert "[base] Fix bitmap copying where the new pitch is smaller." 

This reverts commit c0f1adedcf.
This commit is contained in:
Werner Lemberg 2018-04-22 17:13:50 +02:00
parent c0f1adedcf
commit c2e2a8e5d9
2 changed files with 14 additions and 50 deletions
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6
ChangeLog
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@ -1,9 +1,3 @@
2018-04-22 Werner Lemberg <wl@gnu.org>
[base] Fix bitmap copying where the new pitch is smaller.
* src/base/ftbitmap.c (ft_bitmap_assure_buffer): Handle it.
2018-04-22 Werner Lemberg <wl@gnu.org>
Another fix for handling invalid format 2 cmaps.

32
src/base/ftbitmap.c
View File

@ -237,38 +237,23 @@
unsigned char* out = buffer;
unsigned char* limit = bitmap->buffer + pitch * bitmap->rows;
unsigned int delta = new_pitch - pitch;
FT_MEM_ZERO( out, new_pitch * ypixels );
out += new_pitch * ypixels;
if ( new_pitch > pitch )
{
unsigned int delta = new_pitch - pitch;
while ( in < limit )
{
FT_MEM_COPY( out, in, len );
in += pitch;
out += pitch;
/* we have to zero out the new (unused) pitch bytes */
FT_MEM_ZERO( out, delta );
out += delta;
}
}
else
{
while ( in < limit )
{
FT_MEM_COPY( out, in, len );
in += pitch;
out += new_pitch;
}
}
}
else
{
FT_UInt len = ( width * bpp + 7 ) >> 3;
@ -276,10 +261,6 @@
unsigned char* out = buffer;
unsigned char* limit = bitmap->buffer + pitch * bitmap->rows;
if ( new_pitch > pitch )
{
unsigned int delta = new_pitch - pitch;
@ -289,20 +270,9 @@
in += pitch;
out += pitch;
/* we have to zero out the new (unused) pitch bytes */
FT_MEM_ZERO( out, delta );
out += delta;
}
}
else
{
while ( in < limit )
{
FT_MEM_COPY( out, in, len );
in += pitch;
out += new_pitch;
}
}
FT_MEM_ZERO( out, new_pitch * ypixels );
}