comparison projects/heavy/samphold/HvTable.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)

+/**
+ * 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 "HvTable.h"
+
+hv_size_t hTable_init(HvTable *o, int length) {
+  o->length = length;
+  // true size of the table is always an integer multple of HV_N_SIMD
+  o->size = (length + HV_N_SIMD_MASK) & ~HV_N_SIMD_MASK;
+  // add an extra length for mirroring
+  o->allocated = o->size + HV_N_SIMD;
+  o->head = 0;
+  hv_size_t numBytes = o->allocated * sizeof(float);
+  o->buffer = (float *) hv_malloc(numBytes);
+  hv_memset(o->buffer, numBytes);
+  return numBytes;
+}
+
+hv_size_t hTable_initWithData(HvTable *o, int length, const float *const data) {
+  o->length = length;
+  o->size = (length + HV_N_SIMD_MASK) & ~HV_N_SIMD_MASK;
+  o->allocated = o->size + HV_N_SIMD;
+  o->head = 0;
+  hv_size_t numBytes = o->size * sizeof(float);
+  o->buffer = (float *) hv_malloc(numBytes);
+  hv_memset(o->buffer, numBytes);
+  hv_memcpy(o->buffer, data, length*sizeof(float));
+  return numBytes;
+}
+
+hv_size_t hTable_initWithFinalData(HvTable *o, int length, float *data) {
+  o->length = length;
+  o->size = length;
+  o->allocated = length;
+  o->buffer = data;
+  o->head = 0;
+  return 0;
+}
+
+void hTable_free(HvTable *o) {
+  hv_free(o->buffer);
+}
+
+int hTable_resize(HvTable *o, hv_uint32_t newLength) {
+  // TODO(mhroth): update context with memory allocated by table
+  // NOTE(mhroth): mirrored bytes are not necessarily carried over
+  const hv_uint32_t oldBytes = (hv_uint32_t) (o->size * sizeof(float));
+  const hv_uint32_t newSize = (newLength + HV_N_SIMD_MASK) & ~HV_N_SIMD_MASK;
+  const hv_uint32_t newAllocated = newSize + HV_N_SIMD;
+  const hv_uint32_t newBytes = (hv_uint32_t) (newAllocated * sizeof(float));
+  float *b = (float *) hv_realloc(o->buffer, newBytes);
+  hv_assert(b != NULL); // error while reallocing!
+  if (newSize > o->size) hv_clear_buffer(b+o->size, newAllocated-o->size); // clear new parts of the buffer
+  if (b != o->buffer) {
+    // the buffer has been reallocated, ensure that it is on a 32-byte boundary
+    if ((((uintptr_t) (const void *) b) & 0x10) == 0) {
+      o->buffer = b;
+    } else {
+      float *c = (float *) hv_malloc(newBytes);
+      hv_assert(c != NULL);
+      hv_clear_buffer(c, newLength);
+      const hv_size_t min = hv_min_ui(o->size, newLength);
+      hv_memcpy(c, b, min * sizeof(float));
+      hv_free(b);
+      o->buffer = c;
+    }
+  }
+  o->length = newLength;
+  o->size = newSize;
+  o->allocated = newAllocated;
+  return (int) (newBytes - oldBytes);
+}
+
+void hTable_onMessage(HvBase *_c, HvTable *o, int letIn, const HvMessage *const m,
+    void (*sendMessage)(HvBase *, int, const HvMessage *const)) {
+  if (msg_compareSymbol(m,0,"resize") && msg_isFloat(m,1) && msg_getFloat(m,1) >= 0.0f) {
+    hTable_resize(o, (int) hv_ceil_f(msg_getFloat(m,1))); // apply ceil to ensure that tables always have enough space
+
+    // send out the new size of the table
+    HvMessage *n = HV_MESSAGE_ON_STACK(1);
+    msg_initWithFloat(n, msg_getTimestamp(m), (float) hTable_getSize(o));
+    sendMessage(_c, 0, n);
+  }
+
+  else if (msg_compareSymbol(m,0,"mirror")) {
+    hv_memcpy(o->buffer+o->size, o->buffer, HV_N_SIMD*sizeof(float));
+  }
+}