[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[freetype2] parthw-cleaned b36649f 35/42: [gf] Define `attach_file' func
From: |
Parth Wazurkar |
Subject: |
[freetype2] parthw-cleaned b36649f 35/42: [gf] Define `attach_file' function in `gf_driver_class'. |
Date: |
Mon, 30 Jul 2018 14:20:05 -0400 (EDT) |
branch: parthw-cleaned
commit b36649fd86e3a9fa39cdbf12b76923789ce11a61
Author: Parth Wazurkar <address@hidden>
Commit: Parth Wazurkar <address@hidden>
[gf] Define `attach_file' function in `gf_driver_class'.
* src/gf/gfdrivr.c: Define `attach_file' function, `TFM_Read_Metrics'
in `gf_driver_class' to extract font metric information from `tfm'
file using a new `TFM' auxiliary module.
---
src/gf/gfdrivr.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 72 insertions(+), 1 deletion(-)
diff --git a/src/gf/gfdrivr.c b/src/gf/gfdrivr.c
index bae1d61..fbbc7aa 100644
--- a/src/gf/gfdrivr.c
+++ b/src/gf/gfdrivr.c
@@ -21,6 +21,7 @@
#include FT_INTERNAL_STREAM_H
#include FT_INTERNAL_OBJECTS_H
#include FT_TRUETYPE_IDS_H
+#include FT_INTERNAL_TFM_H
#include FT_SERVICE_GF_H
#include FT_SERVICE_FONT_FORMAT_H
@@ -431,6 +432,76 @@
return error;
}
+ FT_LOCAL_DEF( void )
+ TFM_Done_Metrics( FT_Memory memory,
+ TFM_FontInfo fi )
+ {
+ FT_FREE(fi->width);
+ FT_FREE(fi->height);
+ FT_FREE(fi->depth);
+ FT_FREE( fi );
+ }
+
+ /* parse a TFM metrics file */
+ FT_LOCAL_DEF( FT_Error )
+ TFM_Read_Metrics( FT_Face gf_face,
+ FT_Stream stream )
+ {
+ TFM_Service tfm;
+ FT_Memory memory = stream->memory;
+ TFM_ParserRec parser;
+ TFM_FontInfo fi = NULL;
+ FT_Error error = FT_ERR( Unknown_File_Format );
+ GF_Face face = (GF_Face)gf_face;
+ GF_Glyph gf_glyph= face->gf_glyph;
+
+
+ if ( face->tfm_data )
+ {
+ FT_TRACE1(( "TFM_Read_Metrics:"
+ " Freeing previously attached metrics data.\n" ));
+ TFM_Done_Metrics( memory, (TFM_FontInfo)face->tfm_data );
+
+ face->tfm_data = NULL;
+ }
+
+ if ( FT_NEW( fi ) )
+ goto Exit;
+
+ tfm = (TFM_Service)face->tfm;
+ if ( tfm->init )
+ {
+ error = tfm->init( &parser,
+ memory,
+ stream );
+
+ if ( !error )
+ {
+ parser.FontInfo = fi;
+ parser.user_data = gf_glyph;
+
+ error = tfm->parse_metrics( &parser );
+ tfm->done( &parser );
+ }
+ }
+
+ if ( !error )
+ {
+ /* Modify GF_Glyph data according to TFM metric values */
+
+ /* TO-DO */
+
+ face->tfm_data = fi;
+ fi = NULL;
+ }
+
+ Exit:
+ if ( fi )
+ TFM_Done_Metrics( memory, fi );
+
+ return error;
+ }
+
/*
*
* SERVICES LIST
@@ -487,7 +558,7 @@
GF_Glyph_Load, /* FT_Slot_LoadFunc load_glyph */
NULL, /* FT_Face_GetKerningFunc get_kerning */
- NULL, /* FT_Face_AttachFunc attach_file */
+ TFM_Read_Metrics, /* FT_Face_AttachFunc attach_file */
NULL, /* FT_Face_GetAdvancesFunc get_advances */
GF_Size_Request, /* FT_Size_RequestFunc request_size */
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [freetype2] parthw-cleaned b36649f 35/42: [gf] Define `attach_file' function in `gf_driver_class'.,
Parth Wazurkar <=