Rubidium wrote:

What is exactly wrong with the way the fonts are displayed? It looks roughly the same as it looks in my text editor.
Does increasing the font size help?

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12022

aswn wrote:

Increasing the font size doesnt help.

ive attached the tamil wiki homepage screenshot. to show how the fonts should exactly be.

Attachments

• Screenshot from 2013-02-22 02:02:36.png (394.03 KiB)

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12024

frosch wrote:

This is how the tamil interface looks for me. Does it look any better? Is there a big difference in readability between 8bpp and 32bpp_aa?

Does the readability improve on your system if you start OpenTTD with the command line option "-b 32bpp-anim"?

Attachments

• tamil_8bpp.png (278.39 KiB)
• tamil_32bpp_aa.png (468.53 KiB)

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12039

aswn wrote:

the readability is better in 32bpp_aa..

But still the problem exits. may be its the encoding

ive attached the screenshot showing changes

Attachments

• Screenshot from 2013-02-21 05:36:07.png (1637.95 KiB)

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12041

Rubidium wrote:

Finally I figured out what you're trying to explain; there seems to be some 'magic' drawing rules for Tamil and some other languages that go beyond reordering glyphs and/or changing glyphs. For these languages they seem to be drawing glyphs over eachother.

This will require a significant rework of the text drawing routines.

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12145

aswn wrote:

I can help.. please tell me what to do!

Im a ubuntu user with little programming skills..

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12147

Rubidium wrote:

The idea is to use ICU's ParagraphLayout and/or LayoutEngine for helping with rendering the text. The first step seems to be to figure out how the API works.

We want to use ICU's APIs instead of the few other options because ICU is a library we already use for text sorting and bi-di support. Using an extra library makes things only more complex to set up.

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12150

Rubidium wrote:

Are the characters in the attached screenshot rendered correctly?

Attachments

• example.png (256.21 KiB)

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12305

Rubidium closed the ticket.

Reason for closing: Fixed

In r25471

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481

aswn wrote:

the characters are rendered correctly..

but the characters are overlapping a little bit.. increasing word and character spaces would fix it!

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12369

Rubidium wrote:

Changing the spacing isn't something that we can do. We use an external library which gives us the glyphs (parts of characters) that need to be drawn and their location. At that moment we do not know where to place the extra spacing; it isn't as simple as just adding more and more pixels after each glyph.

The spacing can be changed by the font that is used, so maybe the font I used in the example isn't particularly useful for the language.

This comment was imported from FlySpray: https://bugs.openttd.org/task/5481#comment12371