|
|
|
|
@ -9,242 +9,23 @@ namespace BAGuitar { |
|
|
|
|
bool ExternalSramManager::m_configured = false; |
|
|
|
|
MemConfig ExternalSramManager::m_memConfig[BAGuitar::NUM_MEM_SLOTS]; |
|
|
|
|
|
|
|
|
|
size_t calcAudioSamples(float milliseconds) |
|
|
|
|
{ |
|
|
|
|
return (size_t)((milliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
QueuePosition calcQueuePosition(size_t numSamples) |
|
|
|
|
{ |
|
|
|
|
QueuePosition queuePosition; |
|
|
|
|
queuePosition.index = (int)(numSamples / AUDIO_BLOCK_SAMPLES); |
|
|
|
|
queuePosition.offset = numSamples % AUDIO_BLOCK_SAMPLES; |
|
|
|
|
return queuePosition; |
|
|
|
|
} |
|
|
|
|
QueuePosition calcQueuePosition(float milliseconds) { |
|
|
|
|
size_t numSamples = (int)((milliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f); |
|
|
|
|
return calcQueuePosition(numSamples); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
size_t calcOffset(QueuePosition position) |
|
|
|
|
{ |
|
|
|
|
return (position.index*AUDIO_BLOCK_SAMPLES) + position.offset; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
// MEM BUFFER IF
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
// MEM VIRTUAL
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
MemAudioBlock::MemAudioBlock(size_t numSamples) |
|
|
|
|
: m_queues(((numSamples + AUDIO_BLOCK_SAMPLES - 1)/AUDIO_BLOCK_SAMPLES) +1) |
|
|
|
|
{ |
|
|
|
|
// // round up to an integer multiple of AUDIO_BLOCK_SAMPLES
|
|
|
|
|
// int numQueues = (numSamples + AUDIO_BLOCK_SAMPLES - 1)/AUDIO_BLOCK_SAMPLES;
|
|
|
|
|
//
|
|
|
|
|
// // Preload the queue with nullptrs to set the queue depth to the correct size
|
|
|
|
|
// for (int i=0; i < numQueues; i++) {
|
|
|
|
|
// m_queues.push_back(nullptr);
|
|
|
|
|
// }
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
MemAudioBlock::MemAudioBlock(float milliseconds) |
|
|
|
|
: MemAudioBlock(calcAudioSamples(milliseconds)) |
|
|
|
|
{ |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
MemAudioBlock::~MemAudioBlock() |
|
|
|
|
{ |
|
|
|
|
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// the index is referenced from the head
|
|
|
|
|
audio_block_t *MemAudioBlock::getQueueBack(size_t offset) |
|
|
|
|
{ |
|
|
|
|
|
|
|
|
|
// for (int i=0; i<m_queues.getMaxSize(); i++) {
|
|
|
|
|
// Serial.println(i + String(":") + (uint32_t)m_queues[i]->data);
|
|
|
|
|
// }
|
|
|
|
|
// Serial.println(String("Returning ") + (uint32_t)m_queues[m_queues.getBackIndex(offset)]);
|
|
|
|
|
return m_queues[m_queues.getBackIndex(offset)]; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemAudioBlock::push(audio_block_t *block) |
|
|
|
|
{ |
|
|
|
|
//Serial.println("MemAudioBlock::push()");
|
|
|
|
|
m_queues.push_back(block); |
|
|
|
|
//Serial.println("MemAudioBlock::push() done");
|
|
|
|
|
return true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
audio_block_t* MemAudioBlock::pop() |
|
|
|
|
{ |
|
|
|
|
//Serial.println("MemAudioBlock::pop()");
|
|
|
|
|
audio_block_t* block = m_queues.front(); |
|
|
|
|
m_queues.pop_front(); |
|
|
|
|
return block; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemAudioBlock::clear() |
|
|
|
|
{ |
|
|
|
|
for (size_t i=0; i < m_queues.size(); i++) { |
|
|
|
|
if (m_queues[i]) { |
|
|
|
|
memset(m_queues[i]->data, 0, AUDIO_BLOCK_SAMPLES * sizeof(int16_t)); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
return true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemAudioBlock::write16(size_t offset, int16_t *srcDataPtr, size_t numData) |
|
|
|
|
{ |
|
|
|
|
// Calculate the queue position
|
|
|
|
|
auto position = calcQueuePosition(offset); |
|
|
|
|
int writeOffset = position.offset; |
|
|
|
|
size_t index = position.index; |
|
|
|
|
|
|
|
|
|
if ( (index+1) > m_queues.size()) return false; // out of range
|
|
|
|
|
|
|
|
|
|
// loop over a series of memcpys until all data is transferred.
|
|
|
|
|
size_t samplesRemaining = numData; |
|
|
|
|
|
|
|
|
|
int16_t *srcStart = srcDataPtr; // this will increment during each loop iteration
|
|
|
|
|
|
|
|
|
|
while (samplesRemaining > 0) { |
|
|
|
|
size_t numSamplesToWrite; |
|
|
|
|
|
|
|
|
|
void *destStart = static_cast<void*>(m_queues[index]->data + writeOffset); |
|
|
|
|
|
|
|
|
|
// determine if the transfer will complete or will hit the end of a block first
|
|
|
|
|
if ( (writeOffset + samplesRemaining) > AUDIO_BLOCK_SAMPLES ) { |
|
|
|
|
// goes past end of the queue
|
|
|
|
|
numSamplesToWrite = (AUDIO_BLOCK_SAMPLES - writeOffset); |
|
|
|
|
//writeOffset = 0;
|
|
|
|
|
//index++;
|
|
|
|
|
} else { |
|
|
|
|
// transfer ends in this audio block
|
|
|
|
|
numSamplesToWrite = samplesRemaining; |
|
|
|
|
//writeOffset += numSamplesToWrite;
|
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// perform the transfer
|
|
|
|
|
if (!m_queues[index]) { |
|
|
|
|
// no allocated audio block, skip the copy
|
|
|
|
|
} else { |
|
|
|
|
if (srcDataPtr) { |
|
|
|
|
memcpy(destStart, static_cast<const void*>(srcStart), numSamplesToWrite * sizeof(int16_t)); |
|
|
|
|
} else { |
|
|
|
|
memset(destStart, 0, numSamplesToWrite * sizeof(int16_t)); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
writeOffset = 0; |
|
|
|
|
index++; |
|
|
|
|
srcStart += numSamplesToWrite; |
|
|
|
|
samplesRemaining -= numSamplesToWrite; |
|
|
|
|
} |
|
|
|
|
m_currentPosition.offset = writeOffset; |
|
|
|
|
m_currentPosition.index = index; |
|
|
|
|
return true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
inline bool MemAudioBlock::zero16(size_t offset, size_t numData) |
|
|
|
|
{ |
|
|
|
|
return write16(offset, nullptr, numData); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemAudioBlock::read16(int16_t *dest, size_t destOffset, size_t srcOffset, size_t numSamples) |
|
|
|
|
{ |
|
|
|
|
if (!dest) return false; // destination is not valid
|
|
|
|
|
(void)destOffset; // not supported with audio_block_t;
|
|
|
|
|
//Serial.println("*************************************************************************");
|
|
|
|
|
//Serial.println(String("read16():") + (uint32_t)dest + String(":") + destOffset + String(":") + srcOffset + String(":") + numSamples);
|
|
|
|
|
|
|
|
|
|
// Calculate the queue position
|
|
|
|
|
auto position = calcQueuePosition(srcOffset); |
|
|
|
|
size_t index = position.index; |
|
|
|
|
|
|
|
|
|
// Break the transfer in two. Note that the audio is stored first sample (in time) last (in memory).
|
|
|
|
|
|
|
|
|
|
int16_t *destStart = dest; |
|
|
|
|
audio_block_t *currentQueue; |
|
|
|
|
int16_t *srcStart; |
|
|
|
|
|
|
|
|
|
// Break the transfer into two. Note that the audio
|
|
|
|
|
//Serial.println("Calling getQueue");
|
|
|
|
|
currentQueue = getQueueBack(index+1); // buffer indexes go backwards from the back
|
|
|
|
|
//Serial.println(String("Q. Address: ") + (uint32_t)currentQueue + String(" Data: ") + (uint32_t)currentQueue->data);
|
|
|
|
|
srcStart = (currentQueue->data + AUDIO_BLOCK_SAMPLES - position.offset); |
|
|
|
|
size_t numData = position.offset; |
|
|
|
|
//Serial.println(String("Source Start1: ") + (uint32_t)currentQueue->data + String(" Dest start1: ") + (uint32_t)dest);
|
|
|
|
|
//Serial.println(String("copying to ") + (uint32_t)destStart + String(" from ") + (uint32_t)srcStart + String(" numData= ") + numData);
|
|
|
|
|
memcpy(static_cast<void*>(destStart), static_cast<void*>(srcStart), numData * sizeof(int16_t)); |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
currentQueue = getQueueBack(index); // buffer indexes go backwards from the back
|
|
|
|
|
//Serial.println(String("Q. Address: ") + (uint32_t)currentQueue + String(" Data: ") + (uint32_t)currentQueue->data);
|
|
|
|
|
destStart += numData; |
|
|
|
|
srcStart = (currentQueue->data); |
|
|
|
|
numData = AUDIO_BLOCK_SAMPLES - numData; |
|
|
|
|
//Serial.println(String("Source Start2: ") + (uint32_t)currentQueue->data + String(" Dest start2: ") + (uint32_t)dest);
|
|
|
|
|
//Serial.println(String("copying to ") + (uint32_t)destStart + String(" from ") + (uint32_t)srcStart + String(" numData= ") + numData);
|
|
|
|
|
memcpy(static_cast<void*>(destStart), static_cast<void*>(srcStart), numData * sizeof(int16_t)); |
|
|
|
|
|
|
|
|
|
//m_queues.print();
|
|
|
|
|
//Serial.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
|
|
|
|
|
|
|
|
|
|
return true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
// If this function hits the end of the queues it will wrap to the start
|
|
|
|
|
bool MemAudioBlock::writeAdvance16(int16_t *dataPtr, size_t numData) |
|
|
|
|
{ |
|
|
|
|
auto globalOffset = calcOffset(m_currentPosition); |
|
|
|
|
auto end = globalOffset + numData; |
|
|
|
|
|
|
|
|
|
if ( end >= (m_queues.size() * AUDIO_BLOCK_SAMPLES) ) { |
|
|
|
|
// transfer will wrap, so break into two
|
|
|
|
|
auto samplesToWrite = end - globalOffset; |
|
|
|
|
// write the first chunk
|
|
|
|
|
write16(globalOffset, dataPtr, samplesToWrite); |
|
|
|
|
// write the scond chunk
|
|
|
|
|
int16_t *ptr; |
|
|
|
|
if (dataPtr) { |
|
|
|
|
// valid dataptr, advance the pointer
|
|
|
|
|
ptr = dataPtr+samplesToWrite; |
|
|
|
|
} else { |
|
|
|
|
// dataPtr was nullptr
|
|
|
|
|
ptr = nullptr; |
|
|
|
|
} |
|
|
|
|
write16(0, ptr, numData-samplesToWrite); |
|
|
|
|
} else { |
|
|
|
|
// no wrap
|
|
|
|
|
write16(globalOffset, dataPtr, numData); |
|
|
|
|
} |
|
|
|
|
return true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemAudioBlock::zeroAdvance16(size_t numData) |
|
|
|
|
{ |
|
|
|
|
return writeAdvance16(nullptr, numData); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
// MEM SLOT
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
bool MemSlot::clear() |
|
|
|
|
bool ExtMemSlot::clear() |
|
|
|
|
{ |
|
|
|
|
if (!m_valid) { return false; } |
|
|
|
|
m_spi->zero16(m_start, m_size); |
|
|
|
|
return true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemSlot::write16(size_t offset, int16_t *dataPtr, size_t dataSize) |
|
|
|
|
bool ExtMemSlot::write16(size_t offset, int16_t *dataPtr, size_t dataSize) |
|
|
|
|
{ |
|
|
|
|
if (!m_valid) { return false; } |
|
|
|
|
if ((offset + dataSize-1) <= m_end) { |
|
|
|
|
m_spi->write16(offset, reinterpret_cast<uint16_t*>(dataPtr), dataSize); // cast audio data to uint
|
|
|
|
|
size_t writeStart = m_start + offset; |
|
|
|
|
if ((writeStart + dataSize-1) <= m_end) { |
|
|
|
|
m_spi->write16(writeStart, reinterpret_cast<uint16_t*>(dataPtr), dataSize); // cast audio data to uint
|
|
|
|
|
return true; |
|
|
|
|
} else { |
|
|
|
|
// this would go past the end of the memory slot, do not perform the write
|
|
|
|
|
@ -252,11 +33,12 @@ bool MemSlot::write16(size_t offset, int16_t *dataPtr, size_t dataSize) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemSlot::zero16(size_t offset, size_t dataSize) |
|
|
|
|
bool ExtMemSlot::zero16(size_t offset, size_t dataSize) |
|
|
|
|
{ |
|
|
|
|
if (!m_valid) { return false; } |
|
|
|
|
if ((offset + dataSize-1) <= m_end) { |
|
|
|
|
m_spi->zero16(offset, dataSize); // cast audio data to uint
|
|
|
|
|
size_t writeStart = m_start + offset; |
|
|
|
|
if ((writeStart + dataSize-1) <= m_end) { |
|
|
|
|
m_spi->zero16(writeStart, dataSize); // cast audio data to uint
|
|
|
|
|
return true; |
|
|
|
|
} else { |
|
|
|
|
// this would go past the end of the memory slot, do not perform the write
|
|
|
|
|
@ -264,11 +46,13 @@ bool MemSlot::zero16(size_t offset, size_t dataSize) |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemSlot::read16(int16_t *dest, size_t destOffset, size_t srcOffset, size_t numData) |
|
|
|
|
bool ExtMemSlot::read16(int16_t *dest, size_t srcOffset, size_t numData) |
|
|
|
|
{ |
|
|
|
|
if (!dest) return false; // invalid destination
|
|
|
|
|
if ((srcOffset + (numData*sizeof(int16_t))-1) <= m_end) { |
|
|
|
|
m_spi->read16(srcOffset, reinterpret_cast<uint16_t*>(dest), numData); |
|
|
|
|
size_t readOffset = m_start + srcOffset; |
|
|
|
|
|
|
|
|
|
if ((readOffset + (numData*sizeof(int16_t))-1) <= m_end) { |
|
|
|
|
m_spi->read16(readOffset, reinterpret_cast<uint16_t*>(dest), numData); |
|
|
|
|
return true; |
|
|
|
|
} else { |
|
|
|
|
// this would go past the end of the memory slot, do not perform the write
|
|
|
|
|
@ -276,7 +60,20 @@ bool MemSlot::read16(int16_t *dest, size_t destOffset, size_t srcOffset, size_t |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemSlot::writeAdvance16(int16_t *dataPtr, size_t dataSize) |
|
|
|
|
size_t ExtMemSlot::read16FromCurrent(int16_t *dest, size_t currentOffset, size_t numData) |
|
|
|
|
{ |
|
|
|
|
size_t readStart; |
|
|
|
|
if (m_currentPosition + currentOffset <= m_end) { |
|
|
|
|
readStart = m_currentPosition + currentOffset; |
|
|
|
|
} else { |
|
|
|
|
// this offset will wrap the memory slot
|
|
|
|
|
size_t numBytesToEnd = m_end - m_currentPosition + 1; |
|
|
|
|
readStart = m_start + (currentOffset - numBytesToEnd); |
|
|
|
|
} |
|
|
|
|
m_spi->read16(dest, readStart, numData); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool ExtMemSlot::writeAdvance16(int16_t *dataPtr, size_t dataSize) |
|
|
|
|
{ |
|
|
|
|
if (!m_valid) { return false; } |
|
|
|
|
if (m_currentPosition + dataSize-1 <= m_end) { |
|
|
|
|
@ -295,7 +92,7 @@ bool MemSlot::writeAdvance16(int16_t *dataPtr, size_t dataSize) |
|
|
|
|
return true; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool MemSlot::zeroAdvance16(size_t dataSize) |
|
|
|
|
bool ExtMemSlot::zeroAdvance16(size_t dataSize) |
|
|
|
|
{ |
|
|
|
|
if (!m_valid) { return false; } |
|
|
|
|
if (m_currentPosition + dataSize-1 <= m_end) { |
|
|
|
|
@ -344,14 +141,14 @@ size_t ExternalSramManager::availableMemory(BAGuitar::MemSelect mem) |
|
|
|
|
return m_memConfig[mem].totalAvailable; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool ExternalSramManager::requestMemory(MemSlot &slot, float delayMilliseconds, BAGuitar::MemSelect mem) |
|
|
|
|
bool ExternalSramManager::requestMemory(ExtMemSlot &slot, float delayMilliseconds, BAGuitar::MemSelect mem) |
|
|
|
|
{ |
|
|
|
|
// convert the time to numer of samples
|
|
|
|
|
size_t delayLengthInt = (size_t)((delayMilliseconds*(AUDIO_SAMPLE_RATE_EXACT/1000.0f))+0.5f); |
|
|
|
|
return requestMemory(slot, delayLengthInt, mem); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
bool ExternalSramManager::requestMemory(MemSlot &slot, size_t sizeBytes, BAGuitar::MemSelect mem) |
|
|
|
|
bool ExternalSramManager::requestMemory(ExtMemSlot &slot, size_t sizeBytes, BAGuitar::MemSelect mem) |
|
|
|
|
{ |
|
|
|
|
if (m_memConfig[mem].totalAvailable >= sizeBytes) { |
|
|
|
|
// there is enough available memory for this request
|
|
|
|
|
|
Steve Lascos
7 years ago