>
> >> > While debugging through the `GF_Glyph_Load' function in
>> >> > `gfdrivr.c', I found out that the typecasting of `FT_Face' into
>> >> > `GF_Face' is not working properly. In, `GF_Face gf =
>> >> > (GF_Face)FT_SIZE_FACE( size );', when I extract the `gf_glyph'
>> >> > element from `gf', it is unable to return the glyph bitmap table.
>> >> > Can anyone please point out where the error can be.
>> >>
>> >> Obviously, the size object doesn't contain the right GF_Face
>> >> object.
>> >
>> > But, then this way works for bdf and winfont. Why is it so?
>>
>> I guess there is a buglet somewhere...
>
>
> I checked through gdb, it shows that the address of `GF_Face' does not
> change
> and is the same as returned by `FT_SIZE_FACE', Can there be any
> other problem? please help.
> Here is the output of gdb...
>
>
> Breakpoint 1, main (argc=3, argv=0x7fffffffdb78) at ftexample.c:72
> 72 {
> (gdb) watch -l face
> Hardware watchpoint 2: -location face
> (gdb) c
> Continuing.
> Hi I am here1
> Hi I am here2
> FT_Open_Face: Requesting face 0
> FT_Stream_Open: opened `cmr10.600gf' (24148 bytes) successfully
> TTF driver
> SFNT driver
> not a font using the SFNT container format
> Type 1 driver
> not a Type 1 font
> CFF driver
> SFNT driver
> not a font using the SFNT container format
> not a CFF font header
> CID driver
> not a CID-keyed font
> PFR driver
> not a PFR font
> Type 42 driver
> not a Type42 font
> Windows FNT driver
> not a Windows FNT file
> PCF driver
> ... try gzip stream
> ... try LZW stream
> ... try Bzip2 stream
> not a PCF file
> BDF driver
> not a BDF file
> GF driver
> gf_load_font: GF_ID(131) found gf_load_font: GF_POST_POST(249) found
> gf_load_font: GF Postamble found
> gf_load_font: Allocated bitmap table
> number of glyphs: allocated 128 go->code_min is 0 and go->code_max is 255
> FT_Open_Face: New face object, adding to list
> FT_Open_Face: Creating glyph slot
> FT_New_GlyphSlot: Creating new slot object
> FT_New_GlyphSlot: Return 0x0
> FT_Open_Face: Creating size object
>
> Hardware watchpoint 2: -location face
>
> Old value = (struct FT_FaceRec_ *) 0x7
> New value = (struct FT_FaceRec_ *) 0x5555557a9360
> 0x00007ffff7b22c8d in ft_open_face_internal (library=0x5555557a84c0,
> args=args@entry=0x7fffffffd990, face_index=0,
> aface=0x7fffffffda28, test_mac_fonts=test_mac_fonts@entry=1 '\001')
> at /home/parth/freetype-devel/src/base/ftobjs.c:2623
> 2623 *aface = face;
> (gdb) c
> Continuing.
> FT_Open_Face: Return 0x0
> Hi I am here3 face->num_glyphs is 128
> FT_Request_Size (gf driver):
> x scale: 0 (0.000000)
> y scale: 0 (0.000000)
> ascender: 0.000000
> descender: 0.000000
> height: 0.000000
> max advance: 0.000000
> x ppem: 0
> y ppem: 0
> Hi I am here
> Hi I am here in transform
> HI I am here in FT_Load_Char and glyph_index1 is 65
> HI I am here in FT_Load_Char and glyph_index2 is 65
> Hi I reached GF_Load_Glyph gf is 0x5555557a9360 face is 0x5555557a9360 /*
> In FT_SIZE_FACE */
> GF_Glyph_Load: glyph index 65
> invalid glyph index
> go->code_min is 0 and go->code_max is 0 /* here go->code_max should be 255
> if the GF_Face is properly extracted */
>
>
>
>
>
>
> FT_Done_Library: close faces for type42
> FT_Done_Library: close faces for truetype
> FT_Done_Library: close faces for type1
> FT_Done_Library: close faces for cff
> FT_Done_Library: close faces for t1cid
> FT_Done_Library: close faces for pfr
> FT_Done_Library: close faces for type42
> FT_Done_Library: close faces for winfonts
> FT_Done_Library: close faces for pcf
> FT_Done_Library: close faces for bdf
> FT_Done_Library: close faces for gf
>
> Hardware watchpoint 2: -location face
>
> Old value = (struct FT_FaceRec_ *) 0x5555557a9360
> New value = (struct FT_FaceRec_ *) 0x0
> 0x00007ffff73b5872 in __GI___call_tls_dtors () at
> cxa_thread_atexit_impl.c:145
> 145 cxa_thread_atexit_impl.c: No such file or directory.
> (gdb) Quit
> (gdb)
>
I found the buglet, it was in `gf_free_font' function. Now, it is properly
allocating the
`bitmap' and glyph metrics, but `ftexample' is not showing the image of the
glyph.
I am not able to figure out why is it not showing an image. Can you point
out some
possible error? Please help.
This is the output from `ftexample':
FT_Request_Size (gf driver):
x scale: 0 (0.000000)
y scale: 0 (0.000000)
ascender: 0.000000
descender: 0.000000
height: 0.000000
max advance: 0.000000
x ppem: 0
y ppem: 0
Hi I am here
Hi I am here in transform
GF_Glyph_Load: glyph index 65
FT_Load_Glyph: index 65, flags 0x4
x advance: 6.343750
y advance: 2.953125
linear x advance: 0.000000
linear y advance: 0.000000
bitmap 7x7, monochrome bitmap (mode 1)
Thank you
Parth
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