akrinke / font-stash Goto Github PK

Hi,

I'm looking to use bitmap support in fontstash, however the example in the main.c file looks quite primitive.

I used the AngelCode creator to generate the .fnt file with associated .tga. Can fontstash load that .fnt file and set up the bitmap font automatically without having to write my own surface code and adding each glyph individually? If so, is there an example somewhere?

Thanks!

Hi,

One of our developers found a possible memory leak, caught when doing integration tests. Attached is the diff (viewable here: http://code.google.com/p/bitfighter/source/diff?spec=svn4604e38f9ee3b26453e306e2bf43c32d5ee52f13&r=4604e38f9ee3b26453e306e2bf43c32d5ee52f13&format=side&path=/fontstash/fontstash.c)

diff -r 775e2f415e84 -r 4604e38f9ee3 fontstash/fontstash.c
--- a/fontstash/fontstash.c Wed Nov 13 08:06:17 2013 -0600
+++ b/fontstash/fontstash.c Wed Nov 13 12:48:27 2013 -0600
@@ -196,6 +196,8 @@
        free(stash);
    if (texture != NULL)
        free(texture);
+   if (empty_data != NULL)
+       free(empty_data);
    return NULL;
 }

Hi,

I am curious if you happen to have plans with merging your enhancements with the original fontstash, now found here:

https://github.com/memononen/fontstash

There has since been some major API changes to allow for different rendering backends so I suspect the merging work would be non-trivial.

Thanks!

Also, adding the header files to my project and #including them yield all sorts of linker errors (e.g. the sample code you have in the readme), which is why I tried the Makefile. I thought I could just drop in the header files and include them and things would go cozy, not the case it seems.

Am I missing something?

Not exactly an issue, more a question: is there any way to specify right justification for text when using sth_draw_text(), i.e. so that the x argument would be interpreted as where the text should end, not begin?

Thanks!

Upon losing an OpenGL context with a resolution change in our game, we need to reinitialize the font stashes. However when switching to full screen mode and back to windowed mode, most letters show OK save a few that seem to have artifacts. Here is a screenshot after switching the resolution back and forth:

Note the artifacts on several letters displayed throughout, especially the white text at the top.

After some research, I found this solution to a similar problem:
http://stackoverflow.com/questions/1191093/im-seeing-artifacts-when-i-attempt-to-rotate-an-image/1191281#1191281

However after adding the suggested OpenGL calls to various parts within my application and within fontstash.c, the problem is still there.

Could this just be related to my hardware? (I'm running on an NVidia NVS 3100M chip)

Here is how we're using Font-Stash in our application (we initialize with FontManager::initialize()):
https://code.google.com/p/bitfighter/source/browse/zap/FontManager.cpp

Thanks for a great library!

commit 64e083f breaks GLES compatibility. I think GL_QUADS is unavailable in GLES, you need to use GL_TRIANGLE_FAN or GL_TRIANGLES depending on the call.

When I use sth_dim_text to calculate the width of a string, I get surprising results. I would expect the following two strings to be the same length:

"LLLLL " and "LLL LL".

However, it appears that strings with terminal spaces are reported to be shorter than expected. I have confirmed that in both cases the function iterates properly over all characters in the string, and is selecting what seem to be the proper glyphs. However the length of those glyphs seems to not be consistently calculated.

I have tried this with several TTF fonts, including the venerable OCRA. Is it possible this is somehow related to TTF hinting? Or is it a problem with Font-Stash?

When you do a glRotate the font is rendered with a thin outline corresponding to the bounding box.
Try doing glRotated(2, 0, 0, 1) before calling font.draw() to see the problem.
It sometimes also happens if you do a glTranslate.

Or at least a batch file to compile.