1/* Copyright (c) 2013-2018 Jeffrey Pfau
  2 *
  3 * This Source Code Form is subject to the terms of the Mozilla Public
  4 * License, v. 2.0. If a copy of the MPL was not distributed with this
  5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
  6#include "VideoProxy.h"
  7
  8#include "CoreController.h"
  9
 10using namespace QGBA;
 11
 12VideoProxy::VideoProxy() {
 13	mVideoLoggerRendererCreate(&m_logger.d, false);
 14	m_logger.d.block = true;
 15
 16	m_logger.d.init = &cbind<&VideoProxy::init>;
 17	m_logger.d.reset = &cbind<&VideoProxy::reset>;
 18	m_logger.d.deinit = &cbind<&VideoProxy::deinit>;
 19	m_logger.d.lock = &cbind<&VideoProxy::lock>;
 20	m_logger.d.unlock = &cbind<&VideoProxy::unlock>;
 21	m_logger.d.wait = &cbind<&VideoProxy::wait>;
 22	m_logger.d.wake = &callback<void, int>::func<&VideoProxy::wake>;
 23
 24	m_logger.d.writeData = &callback<bool, const void*, size_t>::func<&VideoProxy::writeData>;
 25	m_logger.d.readData = &callback<bool, void*, size_t, bool>::func<&VideoProxy::readData>;
 26	m_logger.d.postEvent = &callback<void, enum mVideoLoggerEvent>::func<&VideoProxy::postEvent>;
 27}
 28
 29void VideoProxy::attach(CoreController* controller) {
 30	CoreController::Interrupter interrupter(controller);
 31	controller->thread()->core->videoLogger = &m_logger.d;
 32}
 33
 34void VideoProxy::processData() {
 35	mVideoLoggerRendererRun(&m_logger.d, false);
 36	m_fromThreadCond.wakeAll();
 37}
 38
 39void VideoProxy::init() {
 40	RingFIFOInit(&m_dirtyQueue, 0x80000);
 41}
 42
 43void VideoProxy::reset() {
 44	RingFIFOClear(&m_dirtyQueue);
 45}
 46
 47void VideoProxy::deinit() {
 48	RingFIFODeinit(&m_dirtyQueue);
 49}
 50
 51bool VideoProxy::writeData(const void* data, size_t length) {
 52	while (!RingFIFOWrite(&m_dirtyQueue, data, length)) {
 53		emit dataAvailable();
 54		m_mutex.lock();
 55		m_toThreadCond.wakeAll();
 56		m_fromThreadCond.wait(&m_mutex);
 57		m_mutex.unlock();
 58	}
 59	emit dataAvailable();
 60	return true;
 61}
 62
 63bool VideoProxy::readData(void* data, size_t length, bool block) {
 64	bool read = false;
 65	while (true) {
 66		read = RingFIFORead(&m_dirtyQueue, data, length);
 67		if (!block || read) {
 68			break;
 69		}
 70		m_mutex.lock();
 71		m_fromThreadCond.wakeAll();
 72		m_toThreadCond.wait(&m_mutex);
 73		m_mutex.unlock();
 74	}
 75	return read;
 76}
 77
 78void VideoProxy::postEvent(enum mVideoLoggerEvent event) {
 79	emit eventPosted(event);
 80}
 81
 82void VideoProxy::handleEvent(int event) {
 83	m_logger.d.handleEvent(&m_logger.d, static_cast<enum mVideoLoggerEvent>(event));
 84}
 85
 86void VideoProxy::lock() {
 87	m_mutex.lock();
 88}
 89
 90void VideoProxy::unlock() {
 91	m_mutex.unlock();
 92}
 93
 94void VideoProxy::wait() {
 95	while (RingFIFOSize(&m_dirtyQueue)) {
 96		emit dataAvailable();
 97		m_toThreadCond.wakeAll();
 98		m_fromThreadCond.wait(&m_mutex, 1);
 99	}
100}
101
102void VideoProxy::wake(int y) {
103	if ((y & 15) == 15) {
104		m_toThreadCond.wakeAll();
105	}
106}