workbench/devs/AHI/Examples/Low-level/Req-test/req-test.c

   1
   2 /* Demo of AHI's Audio mode requester */
   3
   4 #include <devices/ahi.h>
   5 #include <dos/dos.h>
   6 #include <proto/exec.h>
   7 #include <proto/dos.h>
   8 #include <proto/ahi.h>
   9 //#include <stdio.h>
  10 #include <stdlib.h>
  11
  12 struct Library    *AHIBase;
  13 struct MsgPort    *AHImp=NULL;
  14 struct AHIRequest *AHIio=NULL;
  15 BYTE   AHIDevice=-1;
  16
  17 struct TagItem ReqFilterTags[] = {
  18 //    {AHIDB_Realtime, TRUE},   // Remove the FILESAVE modes (among others?)
  19     {TAG_DONE,}
  20   };
  21
  22 void cleanup(LONG rc)
  23 {
  24   if(!AHIDevice)
  25     CloseDevice((struct IORequest *)AHIio);
  26   DeleteIORequest((struct IORequest *)AHIio);
  27   DeleteMsgPort(AHImp);
  28   exit(rc);
  29 }
  30
  31 void main(void)
  32 {
  33   struct AHIAudioModeRequester *req;
  34   BOOL res;
  35
  36   if(AHImp=CreateMsgPort())
  37     if(AHIio=(struct AHIRequest *)CreateIORequest(AHImp,sizeof(struct AHIRequest))) {
  38       AHIio->ahir_Version = 2;
  39       AHIDevice=OpenDevice(AHINAME,AHI_NO_UNIT,(struct IORequest *)AHIio,NULL);
  40       }
  41
  42   if(AHIDevice) {
  43     Printf("Unable to open %s version 2\n",AHINAME);
  44     cleanup(RETURN_FAIL);
  45   }
  46   AHIBase=(struct Library *)AHIio->ahir_Std.io_Device;
  47
  48   req=AHI_AllocAudioRequest(
  49       AHIR_SleepWindow,TRUE,
  50       AHIR_UserData,999,
  51       AHIR_PubScreenName,NULL,
  52       TAG_DONE);
  53
  54   res=AHI_AudioRequest(req,
  55       AHIR_TitleText,       "Select a mode or cancel",
  56       AHIR_NegativeText,    "Abort",
  57       AHIR_DoMixFreq,       TRUE,
  58       AHIR_DoDefaultMode,   TRUE,
  59       AHIR_InitialAudioID,  0x20003,
  60       AHIR_InitialMixFreq,  30000,
  61       AHIR_FilterTags,      ReqFilterTags,
  62       TAG_DONE);
  63
  64   if(!res)
  65   {
  66     if(IoErr() == ERROR_NO_FREE_STORE)
  67       Printf("AHI ran out of memory!\n");
  68     else if(IoErr() == ERROR_NO_MORE_ENTRIES)
  69       Printf("No available modes!\n");
  70     else
  71      Printf("Requester cancelled!\n");
  72   }
  73   else
  74     Printf("Selected AudioMode: 0x%08lx, %ld Hz\n",req->ahiam_AudioID,req->ahiam_MixFreq);
  75
  76   AHI_FreeAudioRequest(req);
  77
  78   cleanup(RETURN_OK);
  79 }