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[gf] Initialise `TFM Service' and add tracing. 

* src/gf/gfdrivr.c (GF_Face_Init): Call `FT_Get_Module_Interface'
to initialise `tfm' module.

* src/gf/gfdrivr.c (TFM_Read_Metrics): Add tracing messages.
This commit is contained in:
Parth Wazurkar 2018-07-30 22:50:44 +05:30
parent 7939499452
commit 73338b9c10
1 changed files with 42 additions and 13 deletions
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55
src/gf/gfdrivr.c
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@ -165,10 +165,22 @@
GF_Glyph go=NULL;
FT_UInt16 i,count;
TFM_Service tfm;
FT_UNUSED( num_params );
FT_UNUSED( params );
face->tfm = FT_Get_Module_Interface( FT_FACE_LIBRARY( face ),
"tfm" );
tfm = (TFM_Service)face->tfm;
if ( !tfm )
{
FT_ERROR(( "GF_Face_Init: cannot access `tfm' module\n" ));
error = FT_THROW( Missing_Module );
goto Exit;
}
FT_TRACE2(( "GF driver\n" ));
/* load font */
@ -378,7 +390,7 @@
FT_TRACE1(( "GF_Glyph_Load: glyph index %d\n", glyph_index ));
if ( glyph_index < 0 )
if ( (FT_Int)glyph_index < 0 )
glyph_index = 0;
if ((glyph_index < go->code_min) || (go->code_max < glyph_index))
@ -468,28 +480,45 @@
if ( FT_NEW( fi ) )
goto Exit;
FT_TRACE4(( "TFM_Read_Metrics: Invoking TFM_Service.\n" ));
tfm = (TFM_Service)face->tfm;
if ( tfm->init )
/* Initialise TFM Service */
error = tfm->init( &parser,
memory,
stream );
if ( !error )
{
error = tfm->init( &parser,
memory,
stream );
FT_TRACE4(( "TFM_Read_Metrics: Initialised tfm metric data.\n" ));
parser.FontInfo = fi;
parser.user_data = gf_glyph;
if ( !error )
{
parser.FontInfo = fi;
parser.user_data = gf_glyph;
error = tfm->parse_metrics( &parser );
if( !error )
FT_TRACE4(( "TFM_Read_Metrics: parsing TFM metric information done.\n" ));
error = tfm->parse_metrics( &parser );
tfm->done( &parser );
}
FT_TRACE6(( "TFM_Read_Metrics: TFM Metric Information:\n"
" Check Sum : %ld\n"
" Design Size: %ld\n"
" Begin Char : %d\n"
" End Char : %d\n"
" font_bbx_w : %d\n"
" font_bbx_h : %d\n"
" slant : %d\n", parser.FontInfo->cs, parser.FontInfo->design_size, parser.FontInfo->begin_char,
parser.FontInfo->end_char, parser.FontInfo->font_bbx_w,
parser.FontInfo->font_bbx_h, parser.FontInfo->slant ));
tfm->done( &parser );
}
if ( !error )
{
/* Modify GF_Glyph data according to TFM metric values */
/* TO-DO */
/*face->gf_glyph->font_bbx_w = fi->font_bbx_w;
face->gf_glyph->font_bbx_h = fi->font_bbx_h;
*/
face->tfm_data = fi;
fi = NULL;