void CARingBuffer::Allocate(int nChannels, UInt32 bytesPerFrame, UInt32 capacityFrames)
{
Deallocate();
//capacityFrames = NextPowerOfTwo(capacityFrames);
mNumberChannels = nChannels;
mBytesPerFrame = bytesPerFrame;
mCapacityFrames = capacityFrames;
//mCapacityFramesMask = capacityFrames - 1;
mCapacityBytes = bytesPerFrame * capacityFrames;
// put everything in one memory allocation, first the pointers, then the deinterleaved channels
UInt32 allocSize = (mCapacityBytes + sizeof(Byte *)) * nChannels;
Byte *p = (Byte *)CA_malloc(allocSize);
memset(p, 0, allocSize);
mBuffers = (Byte **)p;
p += nChannels * sizeof(Byte *);
for (int i = 0; i < nChannels; ++i) {
mBuffers[i] = p;
p += mCapacityBytes;
}
for (UInt32 i = 0; i<kGeneralRingTimeBoundsQueueSize; ++i)
{
mTimeBoundsQueue[i].mStartTime = 0;
mTimeBoundsQueue[i].mEndTime = 0;
mTimeBoundsQueue[i].mUpdateCounter = 0;
}
mTimeBoundsQueuePtr = 0;
}
static void _ShowCF (FILE* file, CFStringRef str)
{
if (CFGetTypeID(str) != CFStringGetTypeID()) {
CFShow(str);
return;
}
UInt32 len = CFStringGetLength(str);
char* chars = (char*)CA_malloc (len * 2); // give us plenty of room for unichar chars
if (CFStringGetCString (str, chars, len * 2, kCFStringEncodingUTF8))
fprintf (file, "%s", chars);
else
CFShow (str);
free (chars);
}
//_____________________________________________________________________________
//
bool AUScope::RestoreElementNames (CFDictionaryRef& inNameDict)
{
static char string[32];
//first we have to see if we have enough elements and if not create them
bool didAddElements = false;
unsigned int maxElNum = 0;
int dictSize = CFDictionaryGetCount(inNameDict);
CFStringRef * keys = (CFStringRef*)CA_malloc (dictSize * sizeof (CFStringRef));
CFDictionaryGetKeysAndValues (inNameDict, reinterpret_cast<const void**>(keys), NULL);
for (int i = 0; i < dictSize; i++)
{
unsigned int intKey;
CFStringGetCString (keys[i], string, 32, kCFStringEncodingASCII);
sscanf (string, "%u", &intKey);
if (UInt32(intKey) > maxElNum)
maxElNum = intKey;
}
if (maxElNum >= GetNumberOfElements()) {
SetNumberOfElements (maxElNum+1);
didAddElements = true;
}
// OK, now we have the number of elements that we need - lets restate their names
for (int i = 0; i < dictSize; i++)
{
CFStringRef elName = reinterpret_cast<CFStringRef>(CFDictionaryGetValue (inNameDict, keys[i]));
int intKey;
CFStringGetCString (keys[i], string, 32, kCFStringEncodingASCII);
sscanf (string, "%d", &intKey);
GetElement (intKey)->SetName (elName);
}
free (keys);
return didAddElements;
}
