portapack-mayhem/firmware/application/replay_thread.cpp
jLynx 033c4e9a5b
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C++

/*
* Copyright (C) 2016 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* This file is part of PortaPack.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "replay_thread.hpp"
#include "baseband_api.hpp"
#include "buffer_exchange.hpp"
struct BasebandReplay {
BasebandReplay(ReplayConfig* const config) {
baseband::replay_start(config);
}
~BasebandReplay() {
baseband::replay_stop();
}
};
// ReplayThread ///////////////////////////////////////////////////////////
ReplayThread::ReplayThread(
std::unique_ptr<stream::Reader> reader,
size_t read_size,
size_t buffer_count,
bool* ready_signal,
std::function<void(uint32_t return_code)> terminate_callback)
: config{read_size, buffer_count},
reader{std::move(reader)},
ready_sig{ready_signal},
terminate_callback{std::move(terminate_callback)} {
// Need significant stack for FATFS
thread = chThdCreateFromHeap(NULL, 1024, NORMALPRIO + 10, ReplayThread::static_fn, this);
}
ReplayThread::~ReplayThread() {
if (thread) {
chThdTerminate(thread);
chThdWait(thread);
thread = nullptr;
}
}
msg_t ReplayThread::static_fn(void* arg) {
auto obj = static_cast<ReplayThread*>(arg);
const auto return_code = obj->run();
if (obj->terminate_callback) {
obj->terminate_callback(return_code);
}
return 0;
}
uint32_t ReplayThread::run() {
BasebandReplay replay{&config};
BufferExchange buffers{&config};
StreamBuffer* prefill_buffer{nullptr};
// Wait for FIFOs to be allocated in baseband
// Wait for ui_replay_view to tell us that the buffers are ready (awful :( )
while (!(*ready_sig)) {
chThdSleep(100);
};
// While empty buffers fifo is not empty...
while (!buffers.empty()) {
prefill_buffer = buffers.get_prefill();
if (prefill_buffer == nullptr) {
buffers.put_app(prefill_buffer);
} else {
size_t blocks = config.read_size / 512;
for (size_t c = 0; c < blocks; c++) {
auto read_result = reader->read(&((uint8_t*)prefill_buffer->data())[c * 512], 512);
if (read_result.is_error()) {
return READ_ERROR;
}
}
prefill_buffer->set_size(config.read_size);
buffers.put(prefill_buffer);
}
};
baseband::set_fifo_data(nullptr);
while (!chThdShouldTerminate()) {
auto buffer = buffers.get();
auto read_result = reader->read(buffer->data(), buffer->capacity());
if (read_result.is_error()) {
return READ_ERROR;
} else {
if (read_result.value() == 0) {
return END_OF_FILE;
}
}
buffer->set_size(buffer->capacity());
buffers.put(buffer);
}
return TERMINATED;
}