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How to call native thingies

 
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Flip333



Joined: 20 Oct 2008
Posts: 7
PostPosted: Mon Oct 27, 2008 6:56 am    Post subject: How to call native thingies Reply with quote
How would someone call a native message box or Yes/No question in their own game in C?
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Mon Oct 27, 2008 8:10 am    Post subject: Reply with quote
I use the native stuff like that in the init code of my TV version of SDL and PSPGL. Look for the recent thread on that.
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Flip333



Joined: 20 Oct 2008
Posts: 7
PostPosted: Mon Oct 27, 2008 8:35 am    Post subject: Reply with quote
This thread?
http://forums.ps2dev.org/viewtopic.php?t=10463&highlight=sdl+pspg
I didn't see anything in it.

What would I need to include and what are the functions?
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J.F.



Joined: 22 Feb 2004
Posts: 2906
PostPosted: Mon Oct 27, 2008 11:16 am    Post subject: Reply with quote
Yes, that's the thread. Look at the code added to SDL in src/video/psp/SDL_pspvideo.c. These are the main routines:

Code:
static pspUtilityMsgDialogParams dialog;

static void SetupGu(void)
{
    sceGuInit();

    sceGuStart(GU_DIRECT, list);
    sceGuDrawBuffer(GU_PSM_8888, (void*)0, 512);
    sceGuDispBuffer(480, 272, (void*)0x88000, 512);
    sceGuDepthBuffer((void*)0x110000, 512);
    sceGuOffset(2048 - (480/2), 2048 - (272/2));
    sceGuViewport(2048, 2048, 480, 272);
    sceGuDepthRange(0xc350, 0x2710);
    sceGuScissor(0, 0, 480, 272);
    sceGuEnable(GU_SCISSOR_TEST);
    sceGuDepthFunc(GU_GEQUAL);
    sceGuEnable(GU_DEPTH_TEST);
    sceGuFrontFace(GU_CW);
    sceGuShadeModel(GU_SMOOTH);
    sceGuEnable(GU_CULL_FACE);
    sceGuEnable(GU_CLIP_PLANES);
    sceGuFinish();
    sceGuSync(0, 0);

    sceDisplayWaitVblankStart();
    sceGuDisplay(GU_TRUE);
}

static void ConfigureDialog(pspUtilityMsgDialogParams *dialog, size_t dialog_size)
{
    memset(dialog, 0, dialog_size);

    dialog->base.size = dialog_size;
    sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_LANGUAGE,
            &dialog->base.language); // Prompt language
    sceUtilityGetSystemParamInt(PSP_SYSTEMPARAM_ID_INT_UNKNOWN,
            &dialog->base.buttonSwap); // X/O button swap

    dialog->base.graphicsThread = 0x11;
    dialog->base.accessThread = 0x13;
    dialog->base.fontThread = 0x12;
    dialog->base.soundThread = 0x10;
}

static void ShowMessageDialog(const char *message, int enableYesno)
{
    ConfigureDialog(&dialog, sizeof(dialog));
    dialog.mode = PSP_UTILITY_MSGDIALOG_MODE_TEXT;
   dialog.options = PSP_UTILITY_MSGDIALOG_OPTION_TEXT;

   if(enableYesno)
      dialog.options |= PSP_UTILITY_MSGDIALOG_OPTION_YESNO_BUTTONS|PSP_UTILITY_MSGDIALOG_OPTION_DEFAULT_NO;

    strcpy(dialog.message, message);

    sceUtilityMsgDialogInitStart(&dialog);

    for(;;)
    {
       sceGuStart(GU_DIRECT,list);

       // clear screen
       sceGuClearColor(0xff554433);
       sceGuClearDepth(0);
       sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);

       sceGuFinish();
       sceGuSync(0,0);

      switch(sceUtilityMsgDialogGetStatus()) {
         case 2:
          sceUtilityMsgDialogUpdate(1);
          break;

         case 3:
          sceUtilityMsgDialogShutdownStart();
          break;

         case 0:
          return;

      }

      //sceDisplayWaitVblankStart();
      sceDisplayWaitVblankStart();
      sceGuSwapBuffers();
    }
}


and are called like this:

Code:
   if (pad.Buttons & PSP_CTRL_TRIANGLE)
   {
      SetupGu();
      if (PSP_TV_CABLE > 0)
      {
         ShowMessageDialog("Use TV output?", 1);
         if(dialog.buttonPressed == PSP_UTILITY_MSGDIALOG_RESULT_NO)
         {
            PSP_TV_CABLE = 0;
            PSP_TV_LACED = 0;
            PSP_DSP_ASPECT = 1;
            PSP_DSP_WIDE = 1;
         }
         else
         {
            if (PSP_TV_CABLE == 2)
            {
               ShowMessageDialog("Use interlaced output?", 1);
               if(dialog.buttonPressed == PSP_UTILITY_MSGDIALOG_RESULT_YES)
                  PSP_TV_LACED = 1;
            }
            ShowMessageDialog("Using 16:9 (HDTV) display?", 1);
            if(dialog.buttonPressed == PSP_UTILITY_MSGDIALOG_RESULT_NO)
               PSP_DSP_ASPECT = 0;
         }
      }
      ShowMessageDialog("Display as Widescreen?", 1);
      if(dialog.buttonPressed == PSP_UTILITY_MSGDIALOG_RESULT_NO)
         PSP_DSP_WIDE = 0;
      /* write preferences */
      FILE *fd;
      char temp[256];

      fd = fopen("SDL_VID_PREFS", "w");
      if (fd != NULL)
      {
         fwrite ("-vmode", 1, 6, fd);
         fwrite ("\n", 1, 1, fd);
         sprintf(temp, "%d", PSP_TV_CABLE);
         fwrite (temp, 1, strlen(temp), fd);
         fwrite ("\n", 1, 1, fd);
         fwrite ("-laced", 1, 6, fd);
         fwrite ("\n", 1, 1, fd);
         sprintf(temp, "%d", PSP_TV_LACED);
         fwrite (temp, 1, strlen(temp), fd);
         fwrite ("\n", 1, 1, fd);
         fwrite ("-aspect", 1, 7, fd);
         fwrite ("\n", 1, 1, fd);
         sprintf(temp, "%d", PSP_DSP_ASPECT);
         fwrite (temp, 1, strlen(temp), fd);
         fwrite ("\n", 1, 1, fd);
         fwrite ("-wide", 1, 5, fd);
         fwrite ("\n", 1, 1, fd);
         sprintf(temp, "%d", PSP_DSP_WIDE);
         fwrite (temp, 1, strlen(temp), fd);
         fwrite ("\n", 1, 1, fd);
         fclose(fd);
      }
   }
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Insert_witty_name



Joined: 10 May 2006
Posts: 376
PostPosted: Mon Oct 27, 2008 7:44 pm    Post subject: Reply with quote
There's a sample in the SDK.

samples/utility/msgdialog
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Geijer



Joined: 18 Aug 2004
Posts: 3
PostPosted: Mon Oct 27, 2008 11:52 pm    Post subject: Reply with quote
J.F. wrote:

...
Code:

...
    for(;;)
    {
       sceGuStart(GU_DIRECT,list);

       // clear screen
       sceGuClearColor(0xff554433);
       sceGuClearDepth(0);
       sceGuClear(GU_COLOR_BUFFER_BIT|GU_DEPTH_BUFFER_BIT);

       sceGuFinish();
       sceGuSync(0,0);

      switch(sceUtilityMsgDialogGetStatus()) {
         case 2:
          sceUtilityMsgDialogUpdate(1);
          break;

         case 3:
          sceUtilityMsgDialogShutdownStart();
          break;

         case 0:
          return;

      }

      //sceDisplayWaitVblankStart();
      sceDisplayWaitVblankStart();
      sceGuSwapBuffers();
    }

...


Just recently experimented a little with the dialogs and found a potential problem with this code and the code in samples/utility/msgdialog if the comment in the SDK is correct:
Code:

/**
 * Remove a message dialog currently active.  After calling this
 * function you need to keep calling GetStatus and Update until
 * you get a status of 4.
 */
void sceUtilityMsgDialogShutdownStart(void);
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Insert_witty_name



Joined: 10 May 2006
Posts: 376
PostPosted: Tue Oct 28, 2008 4:55 am    Post subject: Reply with quote
The sample is the correct, the comment isn't ;)
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Flip333



Joined: 20 Oct 2008
Posts: 7
PostPosted: Sat Nov 01, 2008 8:13 am    Post subject: Reply with quote
Hey, thanks for that.
I tried using the code he gave me and I couldn't get it to work.
I looked myself, but I guess I didn't look hard enough because I never found the sample. Thanks for the directory. I'll have a look at it.
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