ConstBufferPtr
Digest<Hash>::computeDigest(const uint8_t* buffer, size_t size)
{
Hash hash;
BufferPtr result = make_shared<Buffer>(hash.DigestSize());
hash.Update(buffer, size);
hash.Final(result->get());
return result;
}
size_t FileInput::read(std::string &string)
{
if(mFileSize == 0)
return 0;
BufferPtr data = std::make_shared<Buffer>(mFileSize + 1);
//string.reserve(mFileSize);
int returnval = read((unsigned char *) data->get(), mFileSize);
if(returnval <= 0)
return returnval;
//Null terminate the string
data->get()[mFileSize] = '\0';
//Copy into the std string
string = (char *) data->get();
return returnval;
}
size_t Stream::write(BufferPtr buffer)
{
if(!buffer)
{
#ifdef AEON_USE_AEON_CONSOLE_LIBRARY
Console::error("Stream: Tried writing an empty buffer to a stream.");
#endif
return 0;
}
return write(buffer->get(), buffer->size());
}
BufferPtr Stream::GetNextBuffer(){
// First get the next decoded buffer
BufferPtr currentBuffer = this->GetNextDecoderBuffer();
if(currentBuffer){
/////////////////////////////////////////////
// Lets check if the buffer is too small
bool moreBuffers(true);
while(currentBuffer->Samples()<this->preferedBufferSampleSize && moreBuffers){
BufferPtr appendBuffer = this->GetNextDecoderBuffer();
if(appendBuffer){
currentBuffer->Append(appendBuffer);
this->DeleteBuffer(appendBuffer);
}else{
moreBuffers = false;
}
}
/////////////////////////////////////////////
BufferPtr oldBuffer = this->NewBuffer();
// Now lets loop through all DSP plugins
for(Dsps::iterator dsp=this->dsps.begin();dsp!=this->dsps.end();++dsp){
oldBuffer->CopyFormat(currentBuffer);
oldBuffer->position = currentBuffer->position;
if( (*dsp)->ProcessBuffers(currentBuffer.get(),oldBuffer.get()) ){
// Success in processing DSP, swap the buffers
currentBuffer.swap(oldBuffer);
}
}
this->DeleteBuffer(oldBuffer);
}
return currentBuffer;
}
Error operator()(CommandBufferImpl* cmd)
{
TextureImpl& tex = m_tex.get();
BufferImpl& buff = m_buff.get();
// Bind
GLuint copyFbo = cmd->getManager().getImplementation().
getRenderingThread().getCopyFbo();
glBindFramebuffer(GL_FRAMEBUFFER, copyFbo);
// Attach texture
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
tex.getTarget(), tex.getGlName(), 0);
// Set draw buffers
GLuint drawBuff = GL_COLOR_ATTACHMENT0;
glDrawBuffers(1, &drawBuff);
// Bind buffer
ANKI_ASSERT(m_buff.getTarget() == GL_PIXEL_PACK_BUFFER);
buff.bind();
// Read pixels
GLuint format = GL_NONE, type = GL_NONE;
if(tex.getInternalFormat() == GL_RG32UI)
{
format = GL_RG_INTEGER;
type = GL_UNSIGNED_INT;
}
else if(tex.getInternalFormat() == GL_RG32F)
{
format = GL_RG;
type = GL_FLOAT;
}
else
{
ANKI_ASSERT(0 && "Not implemented");
}
glReadPixels(0, 0, tex.getWidth(), tex.getHeight(),
format, type, nullptr);
// End
buff.unbind();
glBindFramebuffer(GL_FRAMEBUFFER, 0);
return ErrorCode::NONE;
}
BufferPtr Stream::GetNextDecoderBuffer(){
// First get a buffer
BufferPtr buffer = this->NewBuffer();
// Get the buffer from the decoder
if(!this->decoder->GetBuffer(buffer.get())){
// Nothing to decode left, return a empty buffer
return BufferPtr();
}
// We need to save the decoders samplerate to be able to calculate the current time-position
if(!this->decoderSampleRate){
this->decoderSampleRate = buffer->SampleRate();
}
// Calculate the current sample position
this->decoderSamplePosition += buffer->Samples();
// Save the position (seconds) in the buffer
buffer->position = ((double)this->decoderSamplePosition)/((double)this->decoderSampleRate);
return buffer;
}
void UGraphicsDevice::UnmapBuffer(BufferPtr inBuffer)
{
mD3dDeviceCtx->Unmap(inBuffer.get(), 0);
}
void UGraphicsDevice::SetPSConstantBuffer(BufferPtr inBuffer, int inSlot)
{
auto buffer = inBuffer.get();
mD3dDeviceCtx->PSSetConstantBuffers(inSlot, 1, &buffer);
}
void UGraphicsDevice::SetIndexBuffer(BufferPtr inBuffer, DXGI_FORMAT inIndexFormat)
{
mD3dDeviceCtx->IASetIndexBuffer(inBuffer.get(), inIndexFormat, 0);
}
void UGraphicsDevice::SetVertexBuffer(BufferPtr inBuffer, uint32_t inVertexSize)
{
auto buffer = inBuffer.get();
UINT offset = 0;
mD3dDeviceCtx->IASetVertexBuffers(0, 1, &buffer, &inVertexSize, &offset);
}
void Player::ThreadLoop(){
// First start the stream
this->stream = Stream::Create();
if(this->stream->OpenStream(this->url)){
{
boost::mutex::scoped_lock lock(this->mutex);
// Set the volume in the output
this->output->SetVolume(this->volume);
}
// If it's not started, lets precache
bool keepPrecaching(true);
while(this->State()==Precache && keepPrecaching){
keepPrecaching = this->PreBuffer();
boost::thread::yield();
}
// Lets wait until we are not precaching anymore
{
boost::mutex::scoped_lock lock(this->mutex);
while(this->state==Precache){
this->waitCondition.wait(lock);
}
}
this->PlaybackStarted(this);
// Player should be started or quit by now
bool finished(false);
while(!finished && !this->Exited()){
if(this->setPosition!=-1){
// Set a new position
this->output->ClearBuffers();
this->stream->SetPosition(this->setPosition);
{
boost::mutex::scoped_lock lock(this->mutex);
this->bufferQueue.clear();
// this->lockedBuffers.clear();
this->setPosition = -1;
this->totalBufferSize = 0;
}
}
this->output->ReleaseBuffers();
// Get a buffer, either from the bufferQueue, or from the stream
BufferPtr buffer;
if(!this->BufferQueueEmpty()){
boost::mutex::scoped_lock lock(this->mutex);
buffer = this->bufferQueue.front();
}else{
buffer = this->stream->NextBuffer();
if(buffer){
boost::mutex::scoped_lock lock(this->mutex);
this->bufferQueue.push_back(buffer);
this->totalBufferSize += buffer->Bytes();
}
else {
}
}
if(buffer){
{
// Add the buffer to locked buffers so the output do not have time to play and
// try to release the buffer before we have to add it.
boost::mutex::scoped_lock lock(this->mutex);
this->lockedBuffers.push_back(buffer);
}
// Try to play the buffer
if(!this->output->PlayBuffer(buffer.get(),this)){
{
// We didn't manage to play the buffer, remove it from the locked buffer queue
boost::mutex::scoped_lock lock(this->mutex);
this->lockedBuffers.pop_back();
}
if(!this->PreBuffer()){
#ifdef _DEBUG
std::cerr << "!this->PreBuffer" << std::endl;
#endif
// Wait for buffersize to become smaller
boost::mutex::scoped_lock lock(this->mutex);
if(this->totalBufferSize>this->maxBufferSize){
this->waitCondition.wait(lock);
}
}
}else{
// Buffer send to output
boost::mutex::scoped_lock lock(this->mutex);
if(!this->bufferQueue.empty()){
this->bufferQueue.pop_front();
// Set currentPosition
if(this->lockedBuffers.size()==1){
this->currentPosition = buffer->Position();
}
}
}
}else{
// We have no more to decode
finished = true;
}
}
// TODO: call a signal to notify that player is almost done
if(!this->Exited()){
this->PlaybackAlmostEnded(this);
}
// We need to wait for all the lockedBuffers to be released
bool buffersEmpty=false;
do{
this->output->ReleaseBuffers();
{
boost::mutex::scoped_lock lock(this->mutex);
buffersEmpty = this->lockedBuffers.empty();
if(!buffersEmpty && this->state!=Player::Quit){
this->waitCondition.wait(lock);
}
}
}while(!buffersEmpty && !this->Exited());
}else{
// Unable to open stream
this->PlaybackError(this);
}
{
boost::mutex::scoped_lock lock(this->mutex);
this->state = Player::Quit;
}
this->PlaybackEnded(this);
this->output->ReleaseBuffers();
this->output.reset();
this->stream.reset();
}