Deal FreeType Organization,
Thank you for this wonderful library. This is Jun Dai from Prevo Tech.
Currently I experience a strange behave from FT_Get_FSType_Flags call. I
load a True Type font from system and use FT_Get_FSType_Flags call to check
if this font is editable or not.
According to FreeType document, the FT_GetFSType should return one of the
FT_FSTYPE_XXX flag. But I receive a 1, which is not listed as any of those
flags.
The test font is a restricted true type font. I was expecting a return of
FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING flag.
The following is the testing code.
I am on windows 8.1 pro.
FreeType is 2.6 windows build.
--- Start of Test Code ---
int _tmain(int argc, _TCHAR* argv[])
{
//Free Type Library, it use to load font for library
FT_Library _library = NULL;
//initial Free Type library;
FT_Error error = FT_Init_FreeType( &_library );
if(error)
{
return 0;
}
//windows font, which is a restricted font
const char* WINDOWSFONT = "C:\\Windows\\Fonts\\sanss___.ttf";
//load file
FILE* ffile = NULL;
int errorcode = fopen_s(&ffile, WINDOWSFONT, "rb");
if(errorcode == 0 && ffile != NULL)
{
//copy font file into memory
fseek(ffile, 0, SEEK_END);
int fontFileSize = ftell(ffile);
fseek(ffile, 0, SEEK_SET);
BYTE* fontFile = new BYTE[fontFileSize];
int remain = fontFileSize;
BYTE* tempbuff = fontFile;
while(remain > 0)
{
int rbyte = fread(tempbuff, 1, remain, ffile);
if(rbyte < 1) break;
remain -= rbyte;
tempbuff += remain;
}
fclose(ffile);
//load font face.
FT_Face fontface = NULL;
error=FT_New_Memory_Face(_library, fontFile, fontFileSize, 0,
&fontface);
if (error || fontface ==NULL)
{
return 0;
}
//check font type flag
FT_UShort flag = FT_Get_FSType_Flags(fontface);
switch(flag)
{
case FT_FSTYPE_INSTALLABLE_EMBEDDING:
{//Fonts with no fsType bit set may be embedded and
permanently installed on the remote system by an application.
printf("Font Type INSTALLABLE_EMBEDDING: %d \n",
flag);
break;
}
case FT_FSTYPE_RESTRICTED_LICENSE_EMBEDDING:
{//Fonts that have only this bit set must not be
modified, embedded or exchanged in any manner without first obtaining
//permission of the font software copyright owner.
printf("Font Type RESTRICTED_LICENSE_EMBEDDING:
%d \n", flag);
break;
}
case FT_FSTYPE_PREVIEW_AND_PRINT_EMBEDDING:
{//If this bit is set, the font may be embedded and
temporarily loaded on the remote system. Documents
//containing Preview & Print fonts must be opened
'read-only'; no edits can be applied to the document.
printf("Font Type PREVIEW_AND_PRINT_EMBEDDING:
%d \n", flag);
break;
}
case FT_FSTYPE_EDITABLE_EMBEDDING:
{//If this bit is set, the font may be embedded but must
only be installed temporarily on other systems.
//In contrast to Preview & Print fonts, documents
containing editable fonts may be opened for reading,
//editing is permitted, and changes may be saved.
printf("Font Type EDITABLE_EMBEDDING: %d \n",
flag);
break;
}
case FT_FSTYPE_NO_SUBSETTING:
{//If this bit is set, the font may not be subsetted
prior to embedding.
printf("Font Type NO_SUBSETTING: %d \n", flag);
break;
}
case FT_FSTYPE_BITMAP_EMBEDDING_ONLY:
{//If this bit is set, only bitmaps contained in the
font may be embedded; no outline data may be embedded.
//If there are no bitmaps available in the font, then
the font is unembeddable.
printf("Font Type BITMAP_EMBEDDING_ONLY: %d \n",
flag);
break;
}
default:
{
printf("Font Type unknow: %d \n", flag);
break;
}
}
FT_Done_Face(fontface);
fontface = NULL;
}
if(_library != NULL)
{
FT_Done_FreeType(_library);
_library = NULL;
}
return 1;
}
--- End of Test Code ---
Thank you for your help
Jun Dai
_______________________________________________
Freetype mailing list
[email protected]
https://lists.nongnu.org/mailman/listinfo/freetype
