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General => General discussions => Topic started by: Laurent on October 14, 2009, 11:34:17 am

Title: Test of stb_truetype to replace FreeType
Post by: Laurent on October 14, 2009, 11:34:17 am

Hi

I've added code in the SFML 2 branch to use stb_truetype instead of FreeType. The code is not activated by default, you have to uncomment the "#define SFML_USE_STBTT" at the beginning of src/SFML/Graphics/FontLoader.cpp to enable it.

I'd like to know what you think of it, i.e. is the quality worse / the same / better than with FreeType. Personnally I feel like the quality is slightly worse, but I did only a few tests :)

Thanks

Title: Test of stb_truetype to replace FreeType
Post by: Tank on October 14, 2009, 01:19:14 pm

Fontsizes aren't taken into account on my system. Besides of that, the strings look good. ;)

Unfortunately I had some minor issues with compiling:

Code: [Select]

In file included from FontLoader.cpp:438:
../../SFML/Graphics/stb_truetype/stb_truetype.h:547: error: comma at end of enumerator list
../../SFML/Graphics/stb_truetype/stb_truetype.h:554: error: comma at end of enumerator list
../../SFML/Graphics/stb_truetype/stb_truetype.h:561: error: comma at end of enumerator list
../../SFML/Graphics/stb_truetype/stb_truetype.h:571: error: comma at end of enumerator list
../../SFML/Graphics/stb_truetype/stb_truetype.h:581: error: comma at end of enumerator list

I guess Microsoft compilers don't complain about that, eh? ;)

Title: Test of stb_truetype to replace FreeType
Post by: Laurent on October 14, 2009, 02:11:27 pm

Quote

Fontsizes aren't taken into account on my system

Really?
I noticed a difference in the height of rendered characters between FreeType and stb_truetype, but it was not ignored.

Quote

Unfortunately I had some minor issues with compiling

There are several warnings in this library, I guess the author can fix them quickly if I ask him to ;)

However I got no error. I even thought that the standard explicitely allowed a comma after the last value of an enum. After a quick Google search, I found that C99 allows it and that the next C++ standard will allow it as well.

Quote

I guess Microsoft compilers don't complain about that, eh?

Yet, I have checked the "disable language extensions" option :evil:

Title: Test of stb_truetype to replace FreeType
Post by: Tank on October 14, 2009, 03:43:14 pm

Quote from: "Laurent"

Really?
I noticed a difference in the height of rendered characters between FreeType and stb_truetype, but it was not ignored.

No, not really. ;) I did some more checks and stb_truetype fails to load a specific TTF file. I uploaded it here (http://pitload.org/get/1785).

Btw, is there a special reason why you're switching font backends?

Title: Test of stb_truetype to replace FreeType
Post by: Laurent on October 14, 2009, 04:01:02 pm

Quote

Btw, is there a special reason why you're switching font backends?

I like removing such big dependencies.
stb_truetype is one single file in public domain, that can be included directly into SFML. I love that :)

But of course I won't switch until I'm sure that I can get exactly the same features, same quality and no bug.

Title: Test of stb_truetype to replace FreeType
Post by: Tank on October 14, 2009, 05:04:40 pm

Quote from: "Laurent"

stb_truetype is one single file in public domain, that can be included directly into SFML. I love that :)

I agree with that. :)

Quote

But of course I won't switch until I'm sure that I can get exactly the same features, same quality and no bug.

The quality looks good, but maybe it's not compatible with all types of truetype fonts (warning, dangerous superficial knowledge ;)).