Re: [ft-devel] An analysis of Librsvg

[suzuki toshiya]

Dear Vincent,

> Enligthenment, and more precisely the EFL (the libraries)

Thanks. Please let me confirm a few points.

* the supported elements
In my understanding, the parser of SVG document is implemented
in src/modules/evas/vg_loaders/svg/evas_vg_load_svg.c
(
https://github.com/Enlightenment/efl/blob/master/src/modules/evas/vg_loaders/svg/evas_vg_load_svg.c
),

I think the elements supported by this loader are defined by
TAG_DEF macro, thus, <use>, <circle>, <ellipse>, <path>, <polygon>,
<rect>, <polyline>, <line>, and, <defs>, <g>, <svg>, <switch>
are supported. Am I understanding correctly?

* input: xml support
If I can spot the location of the SVG document parser, it seems
that the parsing of SVG is helped by XML parsed in
src/lib/eina/eina_simple_xml_parser.c
(
https://github.com/Enlightenment/efl/blob/master/src/lib/eina/eina_simple_xml_parser.c
)

* output: efl_gfx
If I can spot the location of the SVG document parser, the
rendering of parsed SVG is done by _efl_gfx_path_XXX() in
src/lib/efl/interfaces/efl_gfx_path.c
(
https://github.com/Enlightenment/efl/blob/master/src/lib/efl/interfaces/efl_gfx_path.c
)

There is a comment "code adapted from enesim which was adapted
from moonlight sources". Are they based on FreeType2?

If I'm asked to rewrite whole of elf_gfx_xxx() to fit FreeType2,
simply I would respond "oh, too big, please modularize the
part just to support SVG, I would reconsider after seeing it".
Is it easy for EFL expert?

Regards,
mpsuzuki

Vincent Torri wrote:
> On Tue, May 21, 2019 at 6:00 PM suzuki toshiya
> <address@hidden> wrote:
>> Hi Vincent, Alexei,
>>
>> On 2019/05/21 22:04, Alexei Podtelezhnikov wrote:
>>> On Tue, May 21, 2019 at 5:35 AM Vincent Torri <address@hidden> wrote:
>>>> as I have said, in our project, we parse ourselves the svg and use
>>>> freetype renderer directly for the rendering. we do not depend on any
>>>> external library
>>> I noticed. Thank you for the vote of confidence in FreeType rendering
>>> engine. I am all for adding color, even gradient color, to the engine.
>> Excuse me, I cannot remember about the project Vincent talks about,
>> please let me know what it is. Enlightenment is what you're talking about?
> 
> Enligthenment, and more precisely the EFL (the libraries)
> 
> Vincent Torri
>