[ft] Get copyright information from ttf file
Hello, Is there any api in FreeType2 that returns copyright, author, legal, license, and similar other information present in the .ttf file? thanks aniruddha ___ Freetype mailing list Freetype@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype
Re: [ft] Get copyright information from ttf file
Aniruddha Apte wrote:
Hello,
Is there any api in FreeType2 that returns copyright, author, legal,
license, and similar other information present in the .ttf file?
You can use the:
FT_Get_Sfnt_Name_Count
FT_Get_Sfnt_Name
And then parse these records.
I had written once a small program using these 2 functions to
get the 'localized' font names.
My program reports something like
Name-rec 0: type 0, (c) Copyright ZHONGYI Electronic Co. 1995
Name-rec 1: type 1, SimSun
Name-rec 2: type 2, Regular
Name-rec 3: type 3, SimSun
Name-rec 4: type 4, SimSun
Name-rec 5: type 5, Version 3.03
Name-rec 6: type 6, SimSun
Name-rec 7: type 7, Trademark of ZHONGYI Electronic Co., Beijing
Name-rec 8: type 0 for PEL 3, 1, 1033 82 bytes
Name-rec 9: type 1 for PEL 3, 1, 1033 12 bytes
Bytes: 0 53 0 69 0 6d 0 53 0 75 0 6e
I have attached it so you can play with it if you wish.
Henk Jan
thanks
aniruddhaFT_Get_Sfnt_Name
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#include stdio.h
#include stdlib.h
#include ctype.h
#include ft2build.h
#include FT_FREETYPE_H
#include FT_SFNT_NAMES_H
/* see FreeType ttnameid.h for values */
#define TT_NAME_ID_COPYRIGHT0
#define TT_NAME_ID_FONT_FAMILY 1
#define TT_NAME_ID_FONT_SUBFAMILY 2
#define TT_NAME_ID_UNIQUE_ID3
#define TT_NAME_ID_FULL_NAME4
#define TT_NAME_ID_VERSION_STRING 5
#define TT_NAME_ID_PS_NAME 6
#define TT_NAME_ID_TRADEMARK7
void dumpFace(
FT_Face face
)
{
FT_UInt cnt, i, j;
fprintf(stdout, Family: %s\n\n, face-family_name);
cnt = FT_Get_Sfnt_Name_Count(face);
fprintf(stdout, Number of names: %d\n, cnt);
for( i=0; i cnt; i++)
{
FT_SfntName fontname;
if ( FT_Get_Sfnt_Name(face, i, fontname) == 0 )
{
if ( fontname.platform_id == 1
fontname.encoding_id == 0
fontname.language_id == 0 )
{
char szBuf[255];
int iLen = (int)fontname.string_len;
if ( iLen (sizeof(szBuf) - 1) )
iLen = sizeof(szBuf) - 1;
memcpy(szBuf, (char *)fontname.string, iLen);
szBuf[iLen] = '\0';
fprintf(stdout, Name-rec %u: type %u, %s\n, i,
fontname.name_id, szBuf);
}
else
{
int skip_bytes;
skip_bytes = 0;
/* 0 copyright, 2 sub-family, 5 version, 6 ps name, 7 trademark */
if ( fontname.name_id != 1 )
{
skip_bytes = 1;
}
fprintf(stdout,
Name-rec %u: type %u for PEL %u, %u, %u %u bytes\n,
i, fontname.name_id, fontname.platform_id,
fontname.encoding_id, fontname.language_id,
fontname.string_len );
if ( !skip_bytes )
{
int ascii = 0;
fprintf(stdout, Bytes: );
for (j=0; j fontname.string_len; j++)
{
fprintf(stdout, %2x , fontname.string[j]);
if ( isascii(fontname.string[j]) )
ascii++;
}
fprintf(stdout, \n);
if ( ascii == fontname.string_len )
{
char szTmp[255];
if (ascii = (sizeof(szTmp)) )
ascii = sizeof(szTmp) - 1;
memcpy(szTmp, fontname.string, ascii);
szTmp[ascii] = '\0';
fprintf(stdout, (In Ascii: %s), szTmp);
}
}
}
}
else
fprintf(stdout, Error getting fontname %d\n, i);
}
fprintf(stdout, \n);
}
int main( int argc, char *argv[] )
{
FT_Library FTlib;
FT_Face FTface;
int i, iFaces;
if ( argc 2 )
{
printf(\nUsage: fontcheck file\n);
return EXIT_FAILURE;
}
FT_Init_FreeType(FTlib);
if ( FT_New_Face(FTlib, argv[1], 0, FTface) == 0 )
{
iFaces = FTface-num_faces;
fprintf(stdout, Processing font %s - %d faces found\n\n, argv[1],
iFaces);
dumpFace(FTface);
FT_Done_Face(FTface);
for(i=1; i iFaces; i++)
{
FT_New_Face(FTlib, argv[1], i, FTface);
dumpFace(FTface);
FT_Done_Face(FTface);
}
}
else
fprintf(stdout, Error: %s is not a correct font\n, argv[1]);
FT_Done_FreeType(FTlib);
}
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Re: [ft] Get copyright information from ttf file
Hi, TrueType/OpenType has the entries to hold copyright, license, manufacture, designers etc. Please find the ID of the strings in the name subtable in http://www.microsoft.com/typography/otspec/name.htm And, FreeType2 has a feature to get the strings in the name subtable by the ID: http://www.freetype.org/freetype2/docs/reference/ft2-sfnt_names.html#FT_Get_Sfnt_Name And, if you want to see a source showing how to do, please check the source of ftdump source in ft2demos. -- However, there is the problem that the font vendors do not utilize them seriously. Please find a discussion about the request fontconfig should cache such informations in its database file? at: https://bugs.freedesktop.org/show_bug.cgi?id=18340 Regards, mpsuzuki Aniruddha Apte wrote: Hello, Is there any api in FreeType2 that returns copyright, author, legal, license, and similar other information present in the .ttf file? thanks aniruddha ___ Freetype mailing list Freetype@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype ___ Freetype mailing list Freetype@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype
Re: [ft] Freetype license query
Hi sent the follow to the free software foundation I have an LGPL library (Version 3) in which I would like to use Freetype. Can I link to freetype and still distribute my library as a binary? I asked on the freetype mailing list and was directed here so it would be good to get a definitive answer. Your website says GPL and Freetype licenses are compatible but does not mention the LGPL. I received the following reply. Given that the LGPLv3 is essentially an extra set of permissions on top of the GPLv3, then if a license is compatible with the GPLv3, it is also compatible with the LGPLv3. Is this true just for dynamic linking or statically as well ? It is true of both dynamic and static linking. As the Freetype license is on the fsf website as being compatibale with the GPL I guess it is also compatible with the LGPL. Thanks ___ Freetype mailing list Freetype@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype
Re: [ft-devel] cubic clean up
Shaded areas Before and After in the attached figures show where control points have should be to permit flattening. Is this a risky change? If anything, it is slightly more conservative, yet the conditional is quite a bit simpler. Uh, oh, I have no idea what you are talking about. Please provide more context, especially the formulae you are referring to. It would also help if you use lines to connect the control points in the image. Werner ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
RE: [ft-devel] cubic clean up
Aleksei, If you relax the condition, you increase the number of splits. Normally, making such a change is a mistake because the benefit of simplifying the condition is easily outweighed by the greater cost of increasing the recursive depth. This is the very reason why we ended up with a much more complex set of conditions than in earlier version of FT: it reduces the number of splits very significantly. I've just had a brief chance to look at your proposal, and I now understand why it makes no difference to the output. The chances of your relaxed condition causing a split when the current (theoretically correct) condition doesn't is very small: a control point would have to be in the small white areas in the bottom corners of the rectangle in your diagram. Note that this check is only made after subdivisions for the distance from the chord. Since this is the most expensive test, it is done last, and normally only once. Since there is no performance improvement, I don't believe that your proposal should be included in the code. It would make the code more opaque: It is obvious why the current code [if P1 or P2 is outside P0-P3, split the curve] does what it does (especially if reference is made to Hain's paper); it would not be at all clear why your condition for splitting [if P1 or P2 is far from the center of P0-P3, split the curve] was there. If you do come up with an improvement to the algorithm that is significantly faster (and still provably correct), then by all means submit it for review (but don't expect a quick or uncritical response). Thanks. David %^ -Original Message- From: freetype-devel-bounces+david.bevan=pb@nongnu.org [mailto:freetype-devel-bounces+david.bevan=pb@nongnu.org] On Behalf Of ??? ? Sent: 11 November 2010 20:23 To: GRAHAM ASHER Cc: freetype-devel Subject: Re: [ft-devel] cubic clean up Shaded areas Before and After in the attached figures show where control points have should be to permit flattening. Is this a risky change? If anything, it is slightly more conservative, yet the conditional is quite a bit simpler. ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
Re: [ft-devel] cubic clean up
I am really annoyed by run-arounds and overzealous protection of code by authors. I was proposing a minor benign improvement. I am touching the water so to speak. What's the big deal? Way to attract developers, freetypers! You go! ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
Re: [ft-devel] cubic clean up
I think I can get though to this guy... 2010/11/12 David Bevan david.be...@pb.com: I've just had a brief chance to look at your proposal, and I now understand why it makes no difference to the output. The chances of your relaxed condition causing a split when the current (theoretically correct) condition doesn't is very small: a control point would have to be in the small white areas in the bottom corners of the rectangle in your diagram. Note that this check is only made after subdivisions for the distance from the chord. Since this is the most expensive test, it is done last, and normally only once. Think about it a little more. Imagine a long chord of a dozen pixels. Those white areas are vanishing. Now think about a short chord of a pixel and a half. Those areas are large. However, do you really want to flatten a curve which pitches orthogonally? Think about it. Since there is no performance improvement, I don't believe that your proposal should be included in the code. It would make the code more opaque: It is obvious why the current code [if P1 or P2 is outside P0-P3, split the curve] does what it does (especially if reference is made to Hain's paper); it would not be at all clear why your condition for splitting [if P1 or P2 is far from the center of P0-P3, split the curve] was there. Let's face it. It's only you and me who understand these conditions. You were able to understand my code. Let's drop the opaque argument. I changed the comment for a reason. We can improve it more. ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
Re: [ft-devel] cubic clean up
Aleksei, you really shouldn't be annoyed. My earlier patch was shown to be inferior to David Bevan's, and I was obliged to accept the fact. The only possible criteria are objective ones: does it work? is it faster? is it simpler? I believe David has shown using objective arguments that the patch should not be included. That's not a run-around. It is a courteous consideration of your suggestion, and you should be grateful for it. Also, you don't help your case at all by remarks like I think I can get though to this guy... and It's only you and me who understand these conditions. which are at best patronising and at worst impolite. Best regards, Graham - Original Message From: Алексей Подтележников apodt...@gmail.com To: freetype-devel freetype-devel@nongnu.org Sent: Friday, 12 November, 2010 12:16:14 Subject: Re: [ft-devel] cubic clean up I am really annoyed by run-arounds and overzealous protection of code by authors. I was proposing a minor benign improvement. I am touching the water so to speak. What's the big deal? Way to attract developers, freetypers! You go! ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
Re: [ft-devel] cubic clean up
All, If you at least admitted that my patch would produce a better code... If you at least admitted that my patch is interesting... I would gladly provide more explanation. Instead, I hear should not be applied for some bogus reasons, actually just one reason I do not understand it. Now you are pulling the politeness argument... Please stop. Alexei 2010/11/12 GRAHAM ASHER graham.as...@btinternet.com: Aleksei, you really shouldn't be annoyed. My earlier patch was shown to be inferior to David Bevan's, and I was obliged to accept the fact. The only possible criteria are objective ones: does it work? is it faster? is it simpler? I believe David has shown using objective arguments that the patch should not be included. That's not a run-around. It is a courteous consideration of your suggestion, and you should be grateful for it. Also, you don't help your case at all by remarks like I think I can get though to this guy... and It's only you and me who understand these conditions. which are at best patronising and at worst impolite. Best regards, Graham - Original Message From: Алексей Подтележников apodt...@gmail.com To: freetype-devel freetype-devel@nongnu.org Sent: Friday, 12 November, 2010 12:16:14 Subject: Re: [ft-devel] cubic clean up I am really annoyed by run-arounds and overzealous protection of code by authors. I was proposing a minor benign improvement. I am touching the water so to speak. What's the big deal? Way to attract developers, freetypers! You go! ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel -- Alexei A. Podtelezhnikov, PhD ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
Re: [ft-devel] cubic clean up
On 11/12/10 07:56, Алексей Подтележников wrote: Let's face it. It's only you and me who understand these conditions. Not really. The rest of us just don't care. Because it's just a Bezier flattener after all... No personal attacks on this list. We're grown ups. behdad ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
Re: [ft-devel] Re: About Gsub table in opentype.
[+harfbuzz list, Kenichi Handa] On 11/06/10 05:22, mpsuz...@hiroshima-u.ac.jp wrote: Hi, To parse OpenType tables at low level and obtain the substituted glyph index, libotf might be useful. http://www.m17n.org/libotf/ Interesting. I had totally forgotten about libotf. I hope now that new harfbuzz is in a usable state Kenichi abandons the libotf and helps with harfbuzz. behdad It does not provide the database of the tags of script, language and features, and no dependency/conflict checker of each features. So libotf client programmer have to read OpenType spec and choose appropriate script/language/feature to apply to the serie of the glyph index. Regards, mpsuzuki On Sat, 06 Nov 2010 09:50:28 +0100 (CET) Werner LEMBERG w...@gnu.org wrote: do you know any other small open source library can do this job? No. i just want to display the vertical characters, the layout engine is to big for me. Then load the GSUB table with FT_Load_Sfnt_Table and parse the data by yourself. This is rather straightforward. Werner ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel ___ Freetype-devel mailing list Freetype-devel@nongnu.org http://lists.nongnu.org/mailman/listinfo/freetype-devel
