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| author | Werner Lemberg <wl@gnu.org> | 2023-05-06 19:23:45 +0200 |
|---|---|---|
| committer | Werner Lemberg <wl@gnu.org> | 2023-05-07 14:59:50 +0200 |
| commit | b9ce8e33a76104390956cb0517aa81689830f81c (patch) | |
| tree | e67ba3cfe9158c98995a451dc4f885f2b873167e | |
| parent | bc7466ad45ea014f4b2ceb4a913f140b762a55c7 (diff) | |
| download | freetype2-b9ce8e33a76104390956cb0517aa81689830f81c.tar.gz | |
* src/cid/cidriver.c: Clean up interface.
Ensure that all driver functions use the signature of the service or driver.
This avoids pointer mismatches, which are technically undefined behaviour.
Recent compilers are more picky in catching them as part of Control Flow
Integrity tests.
| -rw-r--r-- | src/cid/cidriver.c | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/src/cid/cidriver.c b/src/cid/cidriver.c index 9669eb73e..fd015ef2e 100644 --- a/src/cid/cidriver.c +++ b/src/cid/cidriver.c @@ -48,10 +48,11 @@ * */ - static const char* - cid_get_postscript_name( CID_Face face ) + FT_CALLBACK_DEF( const char* ) + cid_get_postscript_name( FT_Face face ) /* CID_Face */ { - const char* result = face->cid.cid_font_name; + CID_Face cidface = (CID_Face)face; + const char* result = cidface->cid.cid_font_name; if ( result && result[0] == '/' ) @@ -72,24 +73,26 @@ * */ - static FT_Error - cid_ps_get_font_info( FT_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_ps_get_font_info( FT_Face face, /* CID_Face */ PS_FontInfoRec* afont_info ) { - *afont_info = ((CID_Face)face)->cid.font_info; + *afont_info = ( (CID_Face)face )->cid.font_info; return FT_Err_Ok; } - static FT_Error - cid_ps_get_font_extra( FT_Face face, - PS_FontExtraRec* afont_extra ) + + FT_CALLBACK_DEF( FT_Error ) + cid_ps_get_font_extra( FT_Face face, /* CID_Face */ + PS_FontExtraRec* afont_extra ) { - *afont_extra = ((CID_Face)face)->font_extra; + *afont_extra = ( (CID_Face)face )->font_extra; return FT_Err_Ok; } + static const FT_Service_PsInfoRec cid_service_ps_info = { (PS_GetFontInfoFunc) cid_ps_get_font_info, /* ps_get_font_info */ @@ -107,13 +110,14 @@ * CID INFO SERVICE * */ - static FT_Error - cid_get_ros( CID_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_get_ros( FT_Face face, /* CID_Face */ const char* *registry, const char* *ordering, FT_Int *supplement ) { - CID_FaceInfo cid = &face->cid; + CID_Face cidface = (CID_Face)face; + CID_FaceInfo cid = &cidface->cid; if ( registry ) @@ -129,8 +133,8 @@ } - static FT_Error - cid_get_is_cid( CID_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_get_is_cid( FT_Face face, /* CID_Face */ FT_Bool *is_cid ) { FT_Error error = FT_Err_Ok; @@ -144,12 +148,13 @@ } - static FT_Error - cid_get_cid_from_glyph_index( CID_Face face, + FT_CALLBACK_DEF( FT_Error ) + cid_get_cid_from_glyph_index( FT_Face face, /* CID_Face */ FT_UInt glyph_index, FT_UInt *cid ) { - FT_Error error = FT_Err_Ok; + FT_Error error = FT_Err_Ok; + CID_Face cidface = (CID_Face)face; /* @@ -158,7 +163,7 @@ * array or dictionary. Fonts loaded by the incremental loading feature * are thus not handled here. */ - error = cid_compute_fd_and_offsets( face, glyph_index, + error = cid_compute_fd_and_offsets( cidface, glyph_index, NULL, NULL, NULL ); if ( error ) *cid = 0; @@ -218,7 +223,6 @@ } - FT_CALLBACK_TABLE_DEF const FT_Driver_ClassRec t1cid_driver_class = { |