Update residfp to newer build

Co-Authored-By: Alexander Babikov <2708460+lemondrops@users.noreply.github.com>

src/sound/snd_resid.cpp

@@ -0,0 +1,127 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "resid-fp/sid.h"
+#include <86box/plat.h>
+#include <86box/snd_resid.h>
+
+#define RESID_FREQ 48000
+
+using reSIDfp::SID;
+
+typedef struct psid_t {
+    /* resid sid implementation */
+    SID    *sid;
+    int16_t last_sample;
+} psid_t;
+
+psid_t *psid;
+
+void *
+sid_init(void)
+{
+#if 0
+    psid_t *psid;
+#endif
+    reSIDfp::SamplingMethod method         = reSIDfp::DECIMATE;
+    float                   cycles_per_sec = 14318180.0 / 16.0;
+
+    psid = new psid_t;
+#if 0
+    psid = (psid_t *) malloc(sizeof(sound_t));
+#endif
+    psid->sid = new SID;
+
+    psid->sid->setChipModel(reSIDfp::MOS8580);
+    psid->sid->enableFilter(true);
+
+    psid->sid->reset();
+
+    for (uint8_t c = 0; c < 32; c++)
+        psid->sid->write(c, 0);
+
+    try {
+        psid->sid->setSamplingParameters(cycles_per_sec, method, (float) RESID_FREQ, 0.9 * (float) RESID_FREQ / 2.0);
+    } catch (reSIDfp::SIDError) {
+#if 0
+        printf("reSID failed!\n");
+#endif
+    }
+
+    psid->sid->setChipModel(reSIDfp::MOS6581);
+    psid->sid->input(0);
+
+    return (void *) psid;
+}
+
+void
+sid_close(UNUSED(void *priv))
+{
+#if 0
+    psid_t *psid = (psid_t *) priv;
+#endif
+    delete psid->sid;
+#if 0
+    free(psid);
+#endif
+}
+
+void
+sid_reset(UNUSED(void *priv))
+{
+#if 0
+    psid_t *psid = (psid_t *) priv;
+#endif
+
+    psid->sid->reset();
+
+    for (uint8_t c = 0; c < 32; c++)
+        psid->sid->write(c, 0);
+}
+
+uint8_t
+sid_read(uint16_t addr, UNUSED(void *priv))
+{
+#if 0
+    psid_t *psid = (psid_t *) priv;
+#endif
+
+    return psid->sid->read(addr & 0x1f);
+#if 0
+    return 0xFF;
+#endif
+}
+
+void
+sid_write(uint16_t addr, uint8_t val, UNUSED(void *priv))
+{
+#if 0
+    psid_t *psid = (psid_t *) priv;
+#endif
+
+    psid->sid->write(addr & 0x1f, val);
+}
+
+#define CLOCK_DELTA(n) (int) (((14318180.0 * n) / 16.0) / (float) RESID_FREQ)
+
+static void
+fillbuf2(int &count, int16_t *buf, int len)
+{
+    int c;
+    c = psid->sid->clock(count, buf);
+    if (!c)
+        *buf = psid->last_sample;
+    psid->last_sample = *buf;
+}
+void
+sid_fillbuf(int16_t *buf, int len, UNUSED(void *priv))
+{
+#if 0
+    psid_t *psid = (psid_t *) priv;
+#endif
+    int x = CLOCK_DELTA(len);
+
+    fillbuf2(x, buf, len);
+}