diff projects/heavy/hello-world/SignalPhasor.c @ 160:5bcf04234f80 heavy-updated

- added -std=c99 to Makefile for user-supplied C files (required for heavy files)
- changed heavy core render.cpp file to use latest API and removed all redundant functions (e.g. foleyDesigner/touchkey stuff)
- use build_pd.sh to compile and run pd files (-h for usage instructions)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/projects/heavy/hello-world/SignalPhasor.c	Thu Nov 05 18:58:26 2015 +0000
@@ -0,0 +1,123 @@
+/**
+ * Copyright (c) 2014, 2015, Enzien Audio Ltd.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "SignalPhasor.h"
+
+// input phase is in the range of [0,1]. It is independent of o->phase.
+#if HV_SIMD_AVX
+static void sPhasor_updatePhase(SignalPhasor *o, float p) {
+  o->phase = _mm256_set_ps(
+      p+1.0f+7.0f*o->step.f2sc, p+1.0f+6.0f*o->step.f2sc,
+      p+1.0f+5.0f*o->step.f2sc, p+1.0f+4.0f*o->step.f2sc,
+      p+1.0f+3.0f*o->step.f2sc, p+1.0f+2.0f*o->step.f2sc,
+      p+1.0f+o->step.f2sc,      p+1.0f);
+
+  // ensure that o->phase is still in range [1,2]
+  o->phase = _mm256_or_ps(_mm256_andnot_ps(
+      _mm256_set1_ps(-INFINITY), o->phase), _mm256_set1_ps(1.0f));
+#elif HV_SIMD_SSE
+static void sPhasor_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+  o->phase = _mm_set_epi32(3*o->step.s+p, 2*o->step.s+p, o->step.s+p, p);
+#elif HV_SIMD_NEON
+static void sPhasor_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+  o->phase = (uint32x4_t) {p, o->step.s+p, 2*o->step.s+p, 3*o->step.s+p};
+#else // HV_SIMD_NONE
+static void sPhasor_updatePhase(SignalPhasor *o, hv_uint32_t p) {
+  o->phase = p;
+#endif
+}
+
+static void sPhasor_updateFrequency(SignalPhasor *o, float f, double r) {
+#if HV_SIMD_AVX
+  o->step.f2sc = (float) (f/r);
+  o->inc = _mm256_set1_ps((float) (8.0f*f/r));
+  sPhasor_updatePhase(o, o->phase[0]);
+#elif HV_SIMD_SSE
+  o->step.s = (hv_int32_t) (f*(4294967296.0/r));
+  o->inc = _mm_set1_epi32(4*o->step.s);
+  sPhasor_updatePhase(o, (hv_uint32_t) (o->phase[0] & 0xFFFFFFFFL));
+#elif HV_SIMD_NEON
+  o->step.s = (hv_int32_t) (f*(4294967296.0/r));
+  o->inc = vdupq_n_s32(4*o->step.s);
+  sPhasor_updatePhase(o, vgetq_lane_u32(o->phase, 0));
+#else // HV_SIMD_NONE
+  o->step.s = (hv_int32_t) (f*(4294967296.0/r));
+  o->inc = o->step.s;
+  // no need to update phase
+#endif
+}
+
+hv_size_t sPhasor_init(SignalPhasor *o, double samplerate) {
+#if HV_SIMD_AVX
+  o->phase = _mm256_set1_ps(1.0f);
+  o->inc = _mm256_setzero_ps();
+  o->step.f2sc = (float) (1.0/samplerate);
+#elif HV_SIMD_SSE
+  o->phase = _mm_setzero_si128();
+  o->inc = _mm_setzero_si128();
+  o->step.f2sc = (float) (4294967296.0/samplerate);
+#elif HV_SIMD_NEON
+  o->phase = vdupq_n_u32(0);
+  o->inc = vdupq_n_s32(0);
+  o->step.f2sc = (float) (4294967296.0/samplerate);
+#else // HV_SIMD_NONE
+  o->phase = 0;
+  o->inc = 0;
+  o->step.f2sc = (float) (4294967296.0/samplerate);
+#endif
+  return 0;
+}
+
+void sPhasor_onMessage(HvBase *_c, SignalPhasor *o, int letIn, const HvMessage *m) {
+  if (letIn == 1) {
+    if (msg_isFloat(m,0)) {
+      float phase = msg_getFloat(m,0);
+      while (phase < 0.0f) phase += 1.0f; // wrap phase to [0,1]
+      while (phase > 1.0f) phase -= 1.0f;
+#if HV_SIMD_AVX
+      sPhasor_updatePhase(o, phase);
+#else // HV_SIMD_SSE || HV_SIMD_NEON || HV_SIMD_NONE
+      sPhasor_updatePhase(o, (hv_int32_t) (phase * 4294967296.0));
+#endif
+    }
+  }
+}
+
+hv_size_t sPhasor_k_init(SignalPhasor *o, float frequency, double samplerate) {
+  sPhasor_updateFrequency(o, frequency, samplerate);
+  sPhasor_updatePhase(o, 0);
+  return 0;
+}
+
+void sPhasor_k_onMessage(HvBase *_c, SignalPhasor *o, int letIn, const HvMessage *m) {
+  if (msg_isFloat(m,0)) {
+    switch (letIn) {
+      case 0: sPhasor_updateFrequency(o, msg_getFloat(m,0), ctx_getSampleRate(_c)); break;
+      case 1: {
+        float phase = msg_getFloat(m,0);
+        while (phase < 0.0f) phase += 1.0f; // wrap phase to [0,1]
+        while (phase > 1.0f) phase -= 1.0f;
+#if HV_SIMD_AVX
+        sPhasor_updatePhase(o, phase);
+#else // HV_SIMD_SSE || HV_SIMD_NEON || HV_SIMD_NONE
+        sPhasor_updatePhase(o, (hv_uint32_t) (phase * 4294967296.0));
+#endif
+        break;
+      }
+      default: break;
+    }
+  }
+}