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-
- #include <dos.h>
- #include <conio.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdarg.h>
-
- #include "ruckdac.h"
-
- /*
- X03.c 28-Feb-93 chh
- Record from device to DOS memory or XMS
- */
-
- /*
- The following structures are in ruckdac.h
- */
-
- extern struct DacDataArea __pascal DACDATA;
-
- struct SysInfoPack SIP;
- struct InitPack IP;
- struct XitPack XP;
- struct LoadPack LP;
- struct SetPack SP;
- struct SetProPack SPP;
- struct PlaybackPack PBP;
- struct RecordPack RP;
- struct DeallocPack DP;
-
-
- int rez, rez2; /* result status codes */
- char nums[9] = {7}; /* number buffer for _cgets()*/
- char filename[81]; /* pathname to load */
-
-
- int pick_device(int *devID, int *XMSflag)
- {
-
- int td=0;
-
- SIP.Func = SysInfoDac;
- rez = RUCKDAC(&SIP);
- if (rez == 0) {
- printf("CPU is a %u/%u\n",SIP.CPU,SIP.MHz);
-
- printf("\n0. End program");
- if (SIP.SD[4].device)
- printf("\n5. Sound Blaster, port %xh",SIP.SD[4].Port);
- if (SIP.SD[5].device)
- printf("\n6. Sound Blaster Pro, port %xh",SIP.SD[5].Port);
- if (SIP.SD[4].device)
- printf("\n\n7. Sound Blaster as 5 but use XMS (if applicable)");
- if (SIP.SD[5].device)
- printf("\n8. Sound Blaster Pro as 6 but use XMS (if applicable)\n");
-
- printf("\nSelection: ");
- td = atoi(_cgets(nums));
- td--; /* since devices are numbered 0 to 5 */
-
- if (td > 6) {
- *XMSflag = -1; /* XMS memory selected with SB */
- /* use -1 so as to auto-alloc below */
- td-=2; /* map to appropriate device */
- }
-
- if ((td >=4) && (td <=5)) { /* validate device selected is available */
- if (SIP.SD[td].device == 0)
- td = -1;
- }
- else
- td = -1;
- }
-
- *devID = td;
- return(rez);
- }
-
-
- int init_device(int devID)
- {
- /*
- Initialize RUCKDAC and device and register ExitDac with _atexit
- */
-
- IP.Func = InitDac;
- IP.DeviceID = devID;
- IP.IOport = SIP.SD[devID].Port;
- IP.IRQline = SIP.SD[devID].IRQ;
- IP.DMAch = SIP.SD[devID].DMA;
-
- rez = RUCKDAC(&IP); /* Initialize */
- if (rez == 0) {
- XP.Func = AtExitDac;
- rez2 = RUCKDAC(&XP);
- if (rez2 != 0) {
- printf("AtExitDac failed, press Enter to continue");
- getchar();
- }
-
-
- /*
- Increase SB Pro main and vol volumes to max
- */
-
- if (devID == 5) {
- SPP.Func = SetVolMainSBP;
- SPP.Volume = 0x0F0F;
- rez2 = RUCKDAC(&SPP);
- SPP.Func = SetVolVocSBP;
- SPP.VolVoc = 0x0F0F;
- rez2 = RUCKDAC(&SPP);
- }
- }
- return(rez);
- }
-
-
- int main()
- {
-
- int devID=-1, XMSflag = 0;
- unsigned int RecSecs=5, RecRate=12000;
-
-
- printf("X03.C - RUCKUS-DAC record to memory example. [930228]\n");
-
- rez = pick_device(&devID, &XMSflag);
- if (devID >= 0) {
- printf("Initializing devID %u\n",devID);
- rez = init_device(devID);
-
- /*
- The following record example source is coded inline here
- to simply readability -- but it's so easy to add things that I just
- kept adding stuff, so take it slow if you don't follow at first
- */
-
- if (rez == 0) {
-
- /*
- Select input source
- */
-
- SPP.Func = SetSourceSBP;
- SPP.SourceIn = 0; /* 0=mic,1=CD,2=line */
- rez = RUCKDAC(&SPP); /* should always check rez status */
- /* (not like I'm doing here!) */
-
- printf(" Device ID: %u\n",devID);
- printf(" Record from: mic\n");
- printf(" Record time: %u secs\n",RecSecs);
- printf(" Record rate: %u Hz\n",RecRate);
-
- /*
- Following is memory available for record. We don't use
- it (but should) and just record for 5 secs at 12kHz (~60K)
- */
-
- if (XMSflag == 0) {
- printf(" Memory type: DOS\n");
- printf("K bytes free: %u\n",DACDATA.MemDOS);
- }
- else {
- printf(" Memory type: XMS\n");
- printf("K bytes free: %u\n",DACDATA.MemXMM);
- }
-
- /*
- Prepare for record (5 secs at 12000Hz sample rate)
- */
-
- RP.Func = RecordDac;
- RP.SampleRate = RecRate;
- RP.XMMhandle = XMSflag; /* if -1 auto-alloc an XMS handle */
- RP.RecordPtr = NULL; /* if DOS mem then auto-alloc it */
- /* also used to return ptr after Rec*/
-
- /* RecordBytes limit is 16MB (VOC block limit) */
-
- RP.RecordBytes = ((long)RecRate * (long)RecSecs);
- RP.StereoFlag = 0; /* recording from mic is mono */
-
- printf("\nPress Enter to begin recording...");
- gets(filename);
-
- rez = RUCKDAC(&RP);
-
- /*
- Since record is done as a background DMA task, we can do just
- about anything we want while the recording is taking place.
- Here, I'll just wait until the recording is over
- */
-
- do /* I don't think DACDATA needs a */
- ;
- while (DACDATA.End == 0); /* VOLATILE... CONST... both... ? */
-
- /*
- Recording over. Play it back.
- */
-
- printf("Recorded %lu bytes, press Enter to playback recording...",DACDATA.RecordLen);
- gets(filename);
-
- PBP.Func = PlayDac;
- PBP.Mode = 2;
- if (XMSflag == 0) {
- PBP.XMMhandle = 0;
- PBP.LoadPtr = RP.RecordPtr;
- }
- else {
- PBP.XMMhandle = RP.XMMhandle;
- PBP.LoadPtr = NULL;
- }
- rez = RUCKDAC(&PBP);
-
- do /* hang around until it's done */
- ;
- while (DACDATA.End == 0);
-
- XP.Func = EndDac; /* end play */
- rez = RUCKDAC(&XP);
-
- /*
- Release memory used by RecordDac (ExitDac would do that, too)
- */
-
- DP.Func = DeallocDac;
- if (XMSflag == 0) {
- DP.HandSeg = _FP_SEG(RP.RecordPtr);
- DP.TypeFlag = 0;
- }
- else {
- DP.HandSeg = RP.XMMhandle;
- DP.TypeFlag = 1;
- }
- }
- else
- printf("Initialization failed, %u\n", rez);
- }
- else
- puts("Device pick failed");
-
- XP.Func = ExitDac;
- rez = RUCKDAC(&XP);
- return(rez);
-
- }
-