Re: [ft] FT_Get_Char_Index problem in 2.8.1 (all fine in 2.8)

[Nikolay Sivov]

On 16.10.2017 0:50, Ivan Baidakou wrote:
> Hello,
> 
> I'm maintaing perl wrappers for Font-FreeType [1]. Recently bug report
> [2] has been filed, where something is wrong with new 2.8.1 version.
> 
> The sample C-program
> 
> #include <stdio.h>
> #include <ft2build.h>
> #include FT_FREETYPE_H
> #include FT_TYPES_H
> 
> int main(int argc, char** argv) {
>     FT_Library library;
>     FT_Face face;
>     FT_Error err;
>     FT_ULong charcode = 32;
> 
>     err = FT_Init_FreeType(&library);
>     if (!err) {
>         printf("sucessfully opened library\n");
>     } else {
>         return 0;
>     }
> 
>     err = FT_New_Face(library, argv[1], 0, &face);
>     if (!err) {
>         printf("sucessfully opened face %s\n", argv[1]);
>     } else {
>         return 0;
>     }
> 
>     err = FT_Get_Char_Index(face, charcode);
>     printf("glyph index %d for char code %ld\n", err, charcode);
> 
>     // FT_New_Face
>     return 0;
> }
> 
> outputs 
> 
> glyph index 33 for char code 32
> 
> for 2.8, while for 2.8.1 it outputs
> 
> glyph index 0 for char code 32 
> 
> The fnt file can be taken at [3]. 

This regression is caused by commit
https://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=79e3789f81e14266578e71196ce71ecf5381d142.
Basically you'll have to select charmap yourself now with 2.8.1+, and
that happened automatically for 2.8 and below. This is only relevant to
fnt format.

> 
> Could you, please, help with that as I haven't found any clues at 
> detailed Changelog [4]? 
> 
> Thanks! 
> 
> [1] https://metacpan.org/pod/Font::FreeType
> [2] https://github.com/zmughal/p5-Font-FreeType/issues/21
> [3] https://github.com/zmughal/p5-Font-FreeType/blob/master/t/data/5x7.fnt
> [4] https://sourceforge.net/projects/freetype/files/freetype2/2.8.1/
> 
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