What is pfont? If you meant phfont, yes ps shows that it's running.

On 05/13/2011 02:20 PM, Misha Nefedov wrote:
> I am not aware of a Pf*() tutorial. I recommend starting with the sample code that is in PfRender() API docs.
> Also check that:
> -- you are running pfont,
> -- check sloginfo,
> -- see where the app is crashing.
>
>
>
> _______________________________________________
>
> Advanced Graphics
> http://community.qnx.com/sf/go/post85678

On 05/13/2011 02:20 PM, Misha Nefedov wrote:
> I am not aware of a Pf*() tutorial. I recommend starting with the sample code that is in PfRender() API docs.
Thanks, Misha, I hadn't gotten as far as trying to render the text, so I 
hadn't yet become aware of that sample code.  More on that below.
> Also check that:
> -- you are running pfont,
Here's what "ps -Af | grep phfont" says:

     0    1163315          1  - May16 ?        00:00:00 phfont -d 
/usr/photon/font_repository
     0    1163315          1  - May16 ?        00:00:00 phfont -d 
/usr/photon/font_repository

> -- check sloginfo,
As far as sloginfo is concerned, the following lines seem to be the only 
relevant ones:

...
May 16 07:53:10    1     8     0 phfont: init...
May 16 07:53:10    1     8     0 phfont: initialized.
May 16 07:53:10    1     8     0 phfont: '/dev/phfont[<32|64>]' server 
installed.
...

> -- see where the app is crashing.
As I understand it, what the sample code in the PfRender() docs say to 
do is:

   1. Run PfAttach().
   2. Run PfFindFont().
   3. Run PfRender().

I segfault the very first time I hit PfFindFont().  Here's the relevant 
code-snippet from my program:

   ...
   FontServer = PfAttach (NULL, 0);
   if (FontServer == NULL)
     {
       fprintf (stderr, "Cannot attach to font server.\n");
       goto Error;
     }
   for (i = 0; i < 3; i++)
     for (j = 0; j < NUM_FONT_SIZES; j++)
       {
         int FontSize;
         FontID *ID;
         FontSize = MIN_FONT_SIZE + INC_FONT_SIZE * j;
         ID = PfFindFont (FontDescriptions[i], FontStyles[i],
             FontSize);
         if (NULL == ID)
           {
             fprintf (stderr, "Cannot find font %s size %d style 0x%X\n",
                 FontDescriptions[i], FontSize, FontStyles[i]);
           }
         FontStructures[i]->ID = ID;
       }
     ....

At the point where the segfault occurs in PfFindFont():

    * FontDescriptions[i] is a pointer to the string "ronsanss", which
      is a TrueType font that I've installed and is known-good (at least
      in Linux).  When I say I've "installed" it, I mean that I hope I
      installed it correctly and that one of the lines in
      /usr/photon/font_repository/fontdir is "ronsanss,0@RonSans.ttf,Ron
      Sans,0,,000D-FFFD,p,228x151,4508K".  Please recall that I'm not
      running Photon, so I'm not aware of any good way to know that the
      installation was correct until my app actually works.
    * FontStyles[i] is 16 (PF_STYLE_ANTIALIAS).
    * FontSize is 10.

>
>
> _______________________________________________
>
> Advanced Graphics
> http://community.qnx.com/sf/go/post85678

Oops! I was a bit to hasty in the code snippet I sent in my last 
message.  Here's a better one:

   FontServer = PfAttach (NULL, 0);
   if (FontServer == NULL)
     {
       fprintf (stderr, "Cannot attach to font server.\n");
       goto Error;
     }
   for (i = 0; i < 3; i++)
     for (j = 0; j < NUM_FONT_SIZES; j++)
       {
         int FontSize;
         FontID *ID;
         FontName Description;
         FontSize = MIN_FONT_SIZE + INC_FONT_SIZE * j;
         if (NULL == PfGenerateFontName (
             FontDescriptions[i], FontStyles[i], FontSize, Description))
           {
             fprintf (stderr, "Cannot get font name %s size %d style 
0x%X\n",
                 FontDescriptions[i], FontSize, FontStyles[i]);
             return (1);
           }
         ID = PfFindFont (Description, FontStyles[i], FontSize);
         if (NULL == ID)
           {
             fprintf (stderr, "Cannot find font %s size %d style 0x%X\n",
                 FontDescriptions[i], FontSize, FontStyles[i]);
             return (1);
           }
         FontStructures[i]->ID = ID;
       }

Here the segfault occurs as soon as PfGenerateFontName() is hit.  The 
arguments to PfGenerateFontName() correspond to the description I gave 
for the arguments of PfFindFont() in my last message.  In point of fact, 
the segfault occurs if I simply run the sample code in the 
PfGenerateFontName() doc:

   FontServer = PfAttach (NULL, 0);
   if (FontServer == NULL)
     {
       fprintf (stderr, "Cannot attach to font server.\n");
       goto Error;
     }
     {
       char szHelvetica12[MAX_FONT_TAG];

       if (PfGenerateFontName ("Helvetica", PF_STYLE_BOLD, 12, 
szHelvetica12)
           == NULL)
         {
           perror ("Unable to find font");
         }
     }