reorganized

svn path=/trunk/; revision=9400

1 files changed, 313 insertions, 0 deletions

diff --git a/desiredata/src/s_audio_sgi.c b/desiredata/src/s_audio_sgi.c
new file mode 100644
index 00000000..878cf255
--- /dev/null
+++ b/desiredata/src/s_audio_sgi.c
@@ -0,0 +1,313 @@
+/* ----------------------- Experimental routines for SGI -------------- */
+/* written by Olaf Matthes <olaf.matthes@gmx.de> */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <m_pd.h>
+#include <s_stuff.h>
+
+#include <dmedia/audio.h>
+#include <dmedia/midi.h>
+#include <sys/fpu.h>
+#include <errno.h>
+
+#define SGI_MAXDEV 4    /* it's just 3, but default counts as well... */
+#define SGI_MAXCH 12    /* max. number of channels - is this enough? */
+
+static ALport sgi_iport[SGI_MAXDEV];
+static ALport sgi_oport[SGI_MAXDEV];
+static ALconfig sgi_inconfig;
+static ALconfig sgi_outconfig;
+static int sgi_nindevs, sgi_noutdevs;
+static int sgi_inchannels, sgi_outchannels;
+static int sgi_ninchans[SGI_MAXDEV], sgi_noutchans[SGI_MAXDEV];
+
+/* set the special "flush zero" but (FS, bit 24) in the Control Status Register of the FPU of R4k and beyond
+    so that the result of any underflowing operation will be clamped to zero, and no exception of any kind will
+    be generated on the CPU. thanks to cpirazzi@cp.esd.sgi.com (Chris Pirazzi). */
+static void sgi_flush_all_underflows_to_zero () {
+    union fpc_csr f;
+    f.fc_word = get_fpc_csr();
+    f.fc_struct.flush = 1;
+    set_fpc_csr(f.fc_word);
+}
+
+/* convert the most common errors into readable strings */
+static char *sgi_get_error_message(int err) {
+        switch (err) {
+                case AL_BAD_CONFIG:        return "Invalid config";
+                case AL_BAD_DIRECTION:     return "Invalid direction (neither \"r\" nor \"w\")";
+                case AL_BAD_OUT_OF_MEM:    return "Not enough memory";
+                case AL_BAD_DEVICE_ACCESS: return "Audio hardware is not available or is improperly configured";
+                case AL_BAD_DEVICE:        return "Invalid device";
+                case AL_BAD_NO_PORTS:      return "No audio ports available";
+                case AL_BAD_QSIZE:         return "Invalid fifo size";
+                case AL_BAD_SAMPFMT:       return "Invalid sample format";
+                case AL_BAD_FLOATMAX:      return "Invalid float maximum";
+                case AL_BAD_WIDTH:         return "Invalid sample width";
+                default:                   return "Unknown error";
+        }
+}
+
+int sgi_open_audio(int nindev,  int *indev,  int nchin,  int *chin,
+int noutdev, int *outdev, int nchout, int *chout, int rate/*, int dummy*/) {
+    ALpv pvbuf[2];
+    int num_devs = 0;
+    int in_dev = 0;
+    int out_dev = 0;
+    int inchans = 0;
+    int outchans = 0;
+    int err, n, gotchannels;
+    char *indevnames[4] = {"DefaultIn", "AnalogIn", "AESIn", "ADATIn"};
+    char *outdevnames[4] = {"DefaultOut", "AnalogOut", "AESOut", "ADATOut"};
+    sgi_flush_all_underflows_to_zero();
+    if (sys_verbose) post("opening sound input...");
+    for (n = 0; n < nindev; n++) {
+        int gotchannels = 0;
+        if (indev[n] >= 0 && indev[n] < SGI_MAXDEV) {
+            if (sys_verbose) post("opening %s", indevnames[indev[n]]);
+            in_dev = alGetResourceByName(AL_SYSTEM, indevnames[indev[n]], AL_DEVICE_TYPE);
+        } else {
+            if(sys_verbose)post("opening %s", indevnames[0]);
+            in_dev = AL_DEFAULT_INPUT;
+        }
+        if (!in_dev) {
+            error("%s", sgi_get_error_message(in_dev));
+            continue;       /* try next device, if any */
+        }
+        sgi_inconfig = alNewConfig();
+        alSetSampFmt(sgi_inconfig, AL_SAMPFMT_FLOAT);
+        alSetFloatMax(sgi_outconfig, 1.1f);
+        alSetChannels(sgi_outconfig, chin[n]);
+        alSetQueueSize(sgi_inconfig, sys_advance_samples * chin[n]);
+        alSetDevice(sgi_inconfig, in_dev);
+        sgi_iport[n] = alOpenPort("Pd input port", "r", sgi_inconfig);
+        if (!sgi_iport[n]) error("failed to open audio read port");
+        /* try to set samplerate */
+        pvbuf[0].param = AL_RATE;
+        pvbuf[0].value.ll = alDoubleToFixed(rate);
+        if ((err = alSetParams(in_dev, pvbuf, 1)) < 0) {
+            post("could not set specified sample rate for input (%s)", sgi_get_error_message(err));
+            if(pvbuf[0].sizeOut < 0) post("rate was invalid");
+        }
+        /* check how many channels we actually got */
+        pvbuf[0].param = AL_CHANNELS;
+        if (alGetParams(in_dev, pvbuf, 1) < 0) {
+            post("could not figure out how many input channels we got");
+            gotchannels = chin[n];  /* assume we got them all */
+        } else {
+            gotchannels = pvbuf[0].value.i;
+        }
+        inchans += gotchannels; /* count total number of channels */
+        sgi_ninchans[n] = gotchannels;  /* remember channels for this device */
+    }
+    if (sys_verbose) post("opening sound output...");
+    for (n = 0; n < noutdev; n++) {
+        if (outdev[n] >= 0 && outdev[n] < SGI_MAXDEV) {
+            if(sys_verbose)post("opening %s", outdevnames[outdev[n]]);
+            out_dev = alGetResourceByName(AL_SYSTEM, outdevnames[outdev[n]], AL_DEVICE_TYPE);
+        } else {
+            if (sys_verbose) post("opening %s", outdevnames[0]);
+            out_dev = AL_DEFAULT_OUTPUT;
+        }
+        if (!out_dev) {
+            error("%s", sgi_get_error_message(out_dev));
+            continue; /* try next device, if any */
+        }
+        /* configure the port before opening it */
+        sgi_outconfig = alNewConfig();
+        alSetSampFmt(sgi_outconfig, AL_SAMPFMT_FLOAT);
+        alSetFloatMax(sgi_outconfig, 1.1f);
+        alSetChannels(sgi_outconfig, chout[n]);
+        alSetQueueSize(sgi_outconfig, sys_advance_samples * chout[n]);
+        alSetDevice(sgi_outconfig, out_dev);
+        /* open the port */
+        sgi_oport[n] = alOpenPort("Pd ouput port", "w", sgi_outconfig);
+        if (!sgi_oport[n]) error("failed to open audio write port");
+        /* now try to set sample rate */
+        pvbuf[0].param = AL_RATE;
+        pvbuf[0].value.ll = alDoubleToFixed(rate);
+        if ((err = alSetParams(out_dev, pvbuf, 1)) < 0) {
+            post("could not set specified sample rate for output (%s)", sgi_get_error_message(err));
+            if(pvbuf[0].sizeOut < 0) post("rate was invalid");
+        }
+        /* check how many channels we actually got */
+        pvbuf[0].param = AL_CHANNELS;
+        if (alGetParams(out_dev, pvbuf, 1) < 0) {
+            post("could not figure out how many output channels we got");
+            gotchannels = chout[n];
+        } else {
+            gotchannels = pvbuf[0].value.i;
+        }
+        outchans += gotchannels;
+        sgi_noutchans[n] = gotchannels;
+    }
+    sgi_noutdevs = noutdev;
+    sgi_nindevs = nindev;
+    sgi_inchannels = inchans;
+    sgi_outchannels = outchans;
+    return !(inchans || outchans);
+}
+
+void sgi_close_audio() {
+    int err, n;
+    for (n = 0; n < sgi_nindevs; n++) {
+        if (sgi_iport[n]) {
+            err = alClosePort(sgi_iport[n]);
+            if (err < 0) error("closing input %d: %s (%d)", n + 1, alGetErrorString(oserror()), err);
+        }
+    }
+    for (n = 0; n < sgi_noutdevs; n++) {
+        if (sgi_oport[n]) {
+            err = alClosePort(sgi_oport[n]);
+            if (err < 0) error("closing output %d: %s (%d)", n + 1, alGetErrorString(oserror()), err);
+        }
+    }
+}
+
+/* call this only if both input and output are open */
+static void sgi_checkiosync() {
+//    int i, result, checkit = 1, giveup = 1000, alreadylogged = 0;
+//    long indelay, outdelay, defect;
+//    if (!(sgi_outchannels && sgi_inchannels)) return;
+}
+
+int sgi_send_dacs() {
+    float buf[SGI_MAXCH * sys_dacblocksize], *fp1, *fp2, *fp3, *fp4;
+    static int xferno = 0;
+    static int callno = 0;
+    static double timenow;
+    double timelast;
+    int inchannels =   min(sys_inchannels, sgi_inchannels);
+    int outchannels = min(sys_outchannels,sgi_outchannels);
+    long outfill[SGI_MAXDEV], infill[SGI_MAXDEV];
+    int outdevchannels, indevchannels;
+    int i, n, channel;
+    int result;
+    unsigned int outtransfersize = sys_dacblocksize;
+    unsigned int intransfersize = sys_dacblocksize;
+    /* no audio channels open, return */
+    if (!inchannels && !outchannels) return SENDDACS_NO;
+    timelast = timenow;
+    timenow = sys_getrealtime();
+#ifdef DEBUG_SGI_XFER
+    if (timenow - timelast > 0.050) post("(%d)", (int)(1000 * (timenow - timelast)));
+#endif
+    callno++;
+    sgi_checkiosync(); /* check I/O are in sync and data not late */
+    /* check whether there is enough space in buffers */
+    if (sgi_nindevs) {
+        for (n = 0; n < sgi_nindevs; n++) {
+            if (alGetFilled(sgi_iport[n]) < intransfersize)
+            return SENDDACS_NO;
+        }
+    }
+    if (sgi_noutdevs) {
+        for(n = 0; n < sgi_noutdevs; n++) {
+            if (alGetFillable(sgi_oport[n]) < outtransfersize)
+            return SENDDACS_NO;
+        }
+    }
+    /* output audio data, if we use audio out */
+    if (sgi_noutdevs) {
+        fp2 = sys_soundout;             /* point to current output position in buffer */
+        for(n = 0; n < sgi_noutdevs; n++) {
+            outdevchannels = sgi_noutchans[n];      /* channels supported by this device */
+            for (channel = 0, fp1 = buf; channel < outdevchannels; channel++, fp1++, fp2 += sys_dacblocksize) {
+                for (i = 0, fp3 = fp1, fp4 = fp2; i < sys_dacblocksize; i++, fp3 += outdevchannels, fp4++) *fp3 = *fp4, *fp4 = 0;
+            }
+            alWriteFrames(sgi_oport[n], buf, sys_dacblocksize);
+        }
+    }
+    /* zero out the output buffer */
+    memset(sys_soundout, 0, sys_dacblocksize * sizeof(*sys_soundout) * sys_outchannels);
+    if (sys_getrealtime() - timenow > 0.002) {
+    #ifdef DEBUG_SGI_XFER
+        post("output %d took %d msec", callno, (int)(1000 * (timenow - timelast)));
+    #endif
+        timenow = sys_getrealtime();
+        sys_log_error(ERR_DACSLEPT);
+    }
+    /* get audio data from input, if we use audio in */
+    if (sgi_nindevs) {
+        fp2 = sys_soundin;              /* point to current input position in buffer */
+        for (n = 0; n < sgi_nindevs; n++) {
+            indevchannels = sgi_ninchans[n];        /* channels supported by this device */
+            if (alGetFilled(sgi_iport[n]) > sys_dacblocksize) {
+                alReadFrames(sgi_iport[n], buf, sys_dacblocksize);
+            } else /* have to read but nothing's there... */ {
+                // if (sys_verbose) post("extra ADC buf");
+                /* set buffer to silence */
+                memset(buf, 0, intransfersize * sizeof(*sys_soundout) * sgi_ninchans[n]);
+            }
+            for (channel = 0, fp1 = buf; channel < indevchannels; channel++, fp1++, fp2 += sys_dacblocksize) {
+                for (i = 0, fp3 = fp1, fp4 = fp2; i < sys_dacblocksize; i++, fp3 += indevchannels, fp4++) *fp4 = *fp3;
+            }
+        }
+    }
+    xferno++;
+    if (sys_getrealtime() - timenow > 0.002) {
+#ifdef DEBUG_SGI_XFER
+        post("routine took %d msec", int(1000 * (sys_getrealtime() - timenow)));
+#endif
+        sys_log_error(ERR_ADCSLEPT);
+    }
+    return SENDDACS_YES;
+}
+
+void sgi_getdevs(char *indevlist, int *nindevs, char *outdevlist, int *noutdevs, int *canmulti, int maxndev, int devdescsize) {
+#if 0
+    ALpv pvs[1];
+    char name[32];
+    int i, ndev, err;
+    *canmulti = 3;  /* supports multiple devices */
+    /* get max. number of audio ports from system */
+    pvs[0].param = AL_DEVICES;
+    err = alGetParams(AL_SYSTEM, pvs, 1);
+    if (err < 0) {
+        sprintf("alGetParams failed: %s\n", alGetErrorString(oserror()));
+    }
+    ndev = pvs[0].value.i;
+    for (i = 0; i < ndev; i++) {
+        pvs[0].param = AL_NAME;  /* a string parameter */
+        pvs[0].value.ptr = name; /* the string we've allocated */
+        pvs[0].sizeIn = 32;      /* the array size, in characters, including space for NULL */
+        if (alGetParams(i, pvs, 1) < 0) {
+            sprintf("alGetParams failed: %s\n", alGetErrorString(oserror()));
+        }
+        sprintf(indevlist + i * devdescsize, "%d: %s", i + 1, name);
+        sprintf(outdevlist + i * devdescsize, "%d: %s", i + 1, name);
+    }
+    *nindevs = ndev;
+    *noutdevs = ndev;
+#else
+    sprintf( indevlist + 0 * devdescsize, "Default In");
+    sprintf(outdevlist + 0 * devdescsize, "Default Out");
+    sprintf( indevlist + 1 * devdescsize, "Analog In");
+    sprintf(outdevlist + 1 * devdescsize, "Analog Out");
+    sprintf( indevlist + 2 * devdescsize, "AES In");
+    sprintf(outdevlist + 2 * devdescsize, "AES Out");
+    sprintf( indevlist + 3 * devdescsize, "ADAT In");
+    sprintf(outdevlist + 3 * devdescsize, "ADAT Out");
+    *nindevs = 4;
+    *noutdevs = 4;
+    *canmulti = 3;  /* supports multiple devices */
+#endif
+}
+
+/* list devices: only reflect the most common setup (Octane) */
+void sgi_listaudiodevs() {
+    post("common devices on SGI machines:");
+    post("#-1 - Default In/Out selected in Audio Panel");
+    post("#1  - Analog In/Out");
+    post("#2  - AES In/Out");
+    post("#3  - ADAT I/O");
+}
+
+struct t_audioapi sgi_api = {
+	sgi_open_audio,
+	sgi_close_audio,
+	sgi_send_dacs,
+	sgi_getdevs,
+};