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[sfnt] Improve embedded bitmap tracing. 

* src/base/ftobjs.c (FT_Request_Size): Move trace message regarding
bitmap strike match to...
(FT_Match_Size): This function.

* src/sfnt/ttsbit.c (tt_sbit_decoder_load_metrics,
tt_sbit_decoder_load_byte_aligned, tt_sbit_decoder_load_bit_aligned,
tt_sbit_decoder_load_compound, tt_sbit_decoder_load_png,
tt_sbit_decoder_load_image): Decorate with tracing messages.
This commit is contained in:
Werner Lemberg 2013-06-10 12:57:16 +02:00
parent 99e60d840d
commit a25ecfddba
3 changed files with 45 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
ChangeLog
View File

@ -1,3 +1,16 @@
2013-06-10 Werner Lemberg <wl@gnu.org>
[sfnt] Improve embedded bitmap tracing.
* src/base/ftobjs.c (FT_Request_Size): Move trace message regarding
bitmap strike match to...
(FT_Match_Size): This function.
* src/sfnt/ttsbit.c (tt_sbit_decoder_load_metrics,
tt_sbit_decoder_load_byte_aligned, tt_sbit_decoder_load_bit_aligned,
tt_sbit_decoder_load_compound, tt_sbit_decoder_load_png,
tt_sbit_decoder_load_image): Decorate with tracing messages.
2013-06-10 Werner Lemberg <wl@gnu.org>
Fix Savannah bug #39160.

5
src/base/ftobjs.c
View File

@ -2541,6 +2541,8 @@
if ( w == FT_PIX_ROUND( bsize->x_ppem ) || ignore_width )
{
FT_TRACE3(( "FT_Match_Size: bitmap strike %d matches\n", i ));
if ( size_index )
*size_index = (FT_ULong)i;
@ -2897,9 +2899,6 @@
if ( error )
return error;
FT_TRACE3(( "FT_Request_Size: bitmap strike %lu matched\n",
strike_index ));
return FT_Select_Size( face, (FT_Int)strike_index );
}

30
src/sfnt/ttsbit.c
View File

@ -374,6 +374,7 @@
return FT_Err_Ok;
Fail:
FT_TRACE1(( "tt_sbit_decoder_load_metrics: broken table" ));
return FT_THROW( Invalid_Argument );
}
@ -425,12 +426,15 @@
if ( x_pos < 0 || x_pos + width > bit_width ||
y_pos < 0 || y_pos + height > bit_height )
{
FT_TRACE1(( "tt_sbit_decoder_load_byte_aligned:"
" invalid bitmap dimensions\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
if ( p + ( ( line_bits + 7 ) >> 3 ) * height > limit )
{
FT_TRACE1(( "tt_sbit_decoder_load_byte_aligned: broken bitmap\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
@ -491,6 +495,8 @@
}
Exit:
if ( !error )
FT_TRACE3(( "tt_sbit_decoder_load_byte_aligned: loaded\n" ));
return error;
}
@ -562,12 +568,15 @@
if ( x_pos < 0 || x_pos + width > bit_width ||
y_pos < 0 || y_pos + height > bit_height )
{
FT_TRACE1(( "tt_sbit_decoder_load_bit_aligned:"
" invalid bitmap dimensions\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
if ( p + ( ( line_bits * height + 7 ) >> 3 ) > limit )
{
FT_TRACE1(( "tt_sbit_decoder_load_bit_aligned: broken bitmap\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
@ -647,6 +656,8 @@
}
Exit:
if ( !error )
FT_TRACE3(( "tt_sbit_decoder_load_bit_aligned: loaded\n" ));
return error;
}
@ -675,7 +686,13 @@
num_components = FT_NEXT_USHORT( p );
if ( p + 4 * num_components > limit )
{
FT_TRACE1(( "tt_sbit_decoder_load_compound: broken table\n" ));
goto Fail;
}
FT_TRACE3(( "tt_sbit_decoder_load_compound: loading %d components\n",
num_components ));
for ( nn = 0; nn < num_components; nn++ )
{
@ -691,6 +708,8 @@
break;
}
FT_TRACE3(( "tt_sbit_decoder_load_compound: done\n" ));
decoder->metrics->horiBearingX = horiBearingX;
decoder->metrics->horiBearingY = horiBearingY;
decoder->metrics->horiAdvance = horiAdvance;
@ -727,6 +746,7 @@
if ( limit - p < 4 )
{
FT_TRACE1(( "tt_sbit_decoder_load_png: broken bitmap\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
@ -734,6 +754,7 @@
png_len = FT_NEXT_ULONG( p );
if ( (FT_ULong)( limit - p ) < png_len )
{
FT_TRACE1(( "tt_sbit_decoder_load_png: broken bitmap\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
@ -748,6 +769,8 @@
png_len );
Exit:
if ( !error )
FT_TRACE3(( "tt_sbit_decoder_load_png: loaded\n" ));
return error;
}
@ -1096,6 +1119,10 @@
image_end -= image_start;
image_start = image_offset + image_start;
FT_TRACE3(( "tt_sbit_decoder_load_image:"
" found sbit (format %d) for glyph index %d\n",
image_format, glyph_index ));
return tt_sbit_decoder_load_bitmap( decoder,
load_flags,
image_format,
@ -1108,6 +1135,9 @@
return FT_THROW( Invalid_Table );
NoBitmap:
FT_TRACE4(( "tt_sbit_decoder_load_image:"
" no sbit found for glyph index %d\n", glyph_index ));
return FT_THROW( Invalid_Argument );
}