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gdi32: Add a helper to create a new FreeType face.

This commit is contained in:
Huw Davies 2012-03-28 14:49:23 +01:00 committed by Alexandre Julliard
parent a179b50c9b
commit 7ac623f380
1 changed files with 78 additions and 62 deletions
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140
dlls/gdi32/freetype.c
View File

@ -1789,11 +1789,85 @@ static void AddFaceToList(FT_Face ft_face, const char *file, void *font_data_ptr
debugstr_w(face->StyleName));
}
static FT_Face new_ft_face( const char *file, void *font_data_ptr, DWORD font_data_size,
FT_Long face_index, BOOL allow_bitmap )
{
FT_Error err;
TT_OS2 *pOS2;
FT_Face ft_face;
if (file)
{
TRACE("Loading font file %s index %ld\n", debugstr_a(file), face_index);
err = pFT_New_Face(library, file, face_index, &ft_face);
}
else
{
TRACE("Loading font from ptr %p size %d, index %ld\n", font_data_ptr, font_data_size, face_index);
err = pFT_New_Memory_Face(library, font_data_ptr, font_data_size, face_index, &ft_face);
}
if (err != 0)
{
WARN("Unable to load font %s/%p err = %x\n", debugstr_a(file), font_data_ptr, err);
return NULL;
}
/* There are too many bugs in FreeType < 2.1.9 for bitmap font support */
if (!FT_IS_SCALABLE( ft_face ) && FT_SimpleVersion < ((2 << 16) | (1 << 8) | (9 << 0)))
{
WARN("FreeType version < 2.1.9, skipping bitmap font %s/%p\n", debugstr_a(file), font_data_ptr);
goto fail;
}
if (!FT_IS_SFNT( ft_face ))
{
if (FT_IS_SCALABLE( ft_face ) || !allow_bitmap )
{
WARN("Ignoring font %s/%p\n", debugstr_a(file), font_data_ptr);
goto fail;
}
}
else
{
if (!(pOS2 = pFT_Get_Sfnt_Table( ft_face, ft_sfnt_os2 )) ||
!pFT_Get_Sfnt_Table( ft_face, ft_sfnt_hhea ) ||
!pFT_Get_Sfnt_Table( ft_face, ft_sfnt_head ))
{
TRACE("Font %s/%p lacks either an OS2, HHEA or HEAD table.\n"
"Skipping this font.\n", debugstr_a(file), font_data_ptr);
goto fail;
}
/* Wine uses ttfs as an intermediate step in building its bitmap fonts;
we don't want to load these. */
if (!memcmp( pOS2->achVendID, "Wine", sizeof(pOS2->achVendID) ))
{
FT_ULong len = 0;
if (!pFT_Load_Sfnt_Table( ft_face, FT_MAKE_TAG('E','B','S','C'), 0, NULL, &len ))
{
TRACE("Skipping Wine bitmap-only TrueType font %s\n", debugstr_a(file));
goto fail;
}
}
}
if (!ft_face->family_name || !ft_face->style_name)
{
TRACE("Font %s/%p lacks either a family or style name\n", debugstr_a(file), font_data_ptr);
goto fail;
}
return ft_face;
fail:
pFT_Done_Face( ft_face );
return NULL;
}
static INT AddFontToList(const char *file, void *font_data_ptr, DWORD font_data_size, DWORD flags)
{
FT_Face ft_face;
TT_OS2 *pOS2;
FT_Error err;
FT_Long face_index = 0, num_faces;
INT ret = 0;
@ -1822,66 +1896,8 @@ static INT AddFontToList(const char *file, void *font_data_ptr, DWORD font_data_
#endif /* HAVE_CARBON_CARBON_H */
do {
if (file)
{
TRACE("Loading font file %s index %ld\n", debugstr_a(file), face_index);
err = pFT_New_Face(library, file, face_index, &ft_face);
} else
{
TRACE("Loading font from ptr %p size %d, index %ld\n", font_data_ptr, font_data_size, face_index);
err = pFT_New_Memory_Face(library, font_data_ptr, font_data_size, face_index, &ft_face);
}
if(err != 0) {
WARN("Unable to load font %s/%p err = %x\n", debugstr_a(file), font_data_ptr, err);
return 0;
}
if(!FT_IS_SFNT(ft_face) && (FT_IS_SCALABLE(ft_face) || !(flags & ADDFONT_FORCE_BITMAP))) { /* for now we'll accept TT/OT or bitmap fonts*/
WARN("Ignoring font %s/%p\n", debugstr_a(file), font_data_ptr);
pFT_Done_Face(ft_face);
return 0;
}
/* There are too many bugs in FreeType < 2.1.9 for bitmap font support */
if(!FT_IS_SCALABLE(ft_face) && FT_SimpleVersion < ((2 << 16) | (1 << 8) | (9 << 0))) {
WARN("FreeType version < 2.1.9, skipping bitmap font %s/%p\n", debugstr_a(file), font_data_ptr);
pFT_Done_Face(ft_face);
return 0;
}
if(FT_IS_SFNT(ft_face))
{
if(!(pOS2 = pFT_Get_Sfnt_Table(ft_face, ft_sfnt_os2)) ||
!pFT_Get_Sfnt_Table(ft_face, ft_sfnt_hhea) ||
!pFT_Get_Sfnt_Table(ft_face, ft_sfnt_head))
{
TRACE("Font %s/%p lacks either an OS2, HHEA or HEAD table.\n"
"Skipping this font.\n", debugstr_a(file), font_data_ptr);
pFT_Done_Face(ft_face);
return 0;
}
/* Wine uses ttfs as an intermediate step in building its bitmap fonts;
we don't want to load these. */
if(!memcmp(pOS2->achVendID, "Wine", sizeof(pOS2->achVendID)))
{
FT_ULong len = 0;
if(!pFT_Load_Sfnt_Table(ft_face, FT_MAKE_TAG('E','B','S','C'), 0, NULL, &len))
{
TRACE("Skipping Wine bitmap-only TrueType font %s\n", debugstr_a(file));
pFT_Done_Face(ft_face);
return 0;
}
}
}
if(!ft_face->family_name || !ft_face->style_name) {
TRACE("Font %s/%p lacks either a family or style name\n", debugstr_a(file), font_data_ptr);
pFT_Done_Face(ft_face);
return 0;
}
ft_face = new_ft_face( file, font_data_ptr, font_data_size, face_index, flags & ADDFONT_FORCE_BITMAP );
if (!ft_face) return 0;
if(ft_face->family_name[0] == '.') /* Ignore fonts with names beginning with a dot */
{