1/* Copyright (c) 2013-2017 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 "CoreManager.h"
  7
  8#include "CoreController.h"
  9#include "LogController.h"
 10
 11#include <QDir>
 12
 13#ifdef M_CORE_GBA
 14#include <mgba/gba/core.h>
 15#endif
 16
 17#include <mgba/core/core.h>
 18#include <mgba-util/vfs.h>
 19
 20using namespace QGBA;
 21
 22void CoreManager::setConfig(const mCoreConfig* config) {
 23	m_config = config;
 24}
 25
 26void CoreManager::setMultiplayerController(MultiplayerController* multiplayer) {
 27	m_multiplayer = multiplayer;
 28}
 29
 30CoreController* CoreManager::loadGame(const QString& path) {
 31	QFileInfo info(path);
 32	if (!info.isReadable()) {
 33		QString fname = info.fileName();
 34		QString base = info.path();
 35		if (base.endsWith("/") || base.endsWith(QDir::separator())) {
 36			base.chop(1);
 37		}
 38		VDir* dir = VDirOpenArchive(base.toUtf8().constData());
 39		if (dir) {
 40			VFile* vf = dir->openFile(dir, fname.toUtf8().constData(), O_RDONLY);
 41			if (vf) {
 42				struct VFile* vfclone = VFileMemChunk(NULL, vf->size(vf));
 43				uint8_t buffer[2048];
 44				ssize_t read;
 45				while ((read = vf->read(vf, buffer, sizeof(buffer))) > 0) {
 46					vfclone->write(vfclone, buffer, read);
 47				}
 48				vf->close(vf);
 49				vf = vfclone;
 50			}
 51			dir->close(dir);
 52			return loadGame(vf, fname, base);
 53		} else {
 54			LOG(QT, ERROR) << tr("Failed to open game file: %1").arg(path);
 55		}
 56		return nullptr;
 57	}
 58	VFile* vf = nullptr;
 59	VDir* archive = VDirOpenArchive(path.toUtf8().constData());
 60	if (archive) {
 61		VFile* vfOriginal = VDirFindFirst(archive, [](VFile* vf) {
 62			return mCoreIsCompatible(vf) != PLATFORM_NONE;
 63		});
 64		ssize_t size;
 65		if (vfOriginal && (size = vfOriginal->size(vfOriginal)) > 0) {
 66			void* mem = vfOriginal->map(vfOriginal, size, MAP_READ);
 67			vf = VFileMemChunk(mem, size);
 68			vfOriginal->unmap(vfOriginal, mem, (size_t) read);
 69			vfOriginal->close(vfOriginal);
 70		}
 71	}
 72	QDir dir(info.dir());
 73	if (!vf) {
 74		vf = VFileOpen(info.canonicalFilePath().toUtf8().constData(), O_RDONLY);
 75	}
 76	return loadGame(vf, info.fileName(), dir.canonicalPath());
 77}
 78
 79CoreController* CoreManager::loadGame(VFile* vf, const QString& path, const QString& base) {
 80	if (!vf) {
 81		return nullptr;
 82	}
 83
 84	mCore* core = mCoreFindVF(vf);
 85	if (!core) {
 86		LOG(QT, ERROR) << tr("Could not load game. Are you sure it's in the correct format?");
 87		return nullptr;
 88	}
 89
 90	core->init(core);
 91	mCoreInitConfig(core, nullptr);
 92
 93	if (m_config) {
 94		mCoreLoadForeignConfig(core, m_config);
 95	}
 96
 97	if (m_preload) {
 98		mCorePreloadVF(core, vf);
 99	} else {
100		core->loadROM(core, vf);
101	}
102
103	QByteArray bytes(path.toUtf8());
104	separatePath(bytes.constData(), nullptr, core->dirs.baseName, nullptr);
105
106	QFileInfo info(base);
107	if (info.isDir()) {
108		info = QFileInfo(base + "/" + path);
109	}
110	bytes = info.dir().canonicalPath().toUtf8();
111	mDirectorySetAttachBase(&core->dirs, VDirOpen(bytes.constData()));
112	mCoreAutoloadSave(core);
113	mCoreAutoloadCheats(core);
114
115	CoreController* cc = new CoreController(core);
116	if (m_multiplayer) {
117		cc->setMultiplayerController(m_multiplayer);
118	}
119	emit coreLoaded(cc);
120	return cc;
121}
122
123CoreController* CoreManager::loadBIOS(int platform, const QString& path) {
124	QFileInfo info(path);
125	VFile* vf = VFileOpen(info.canonicalFilePath().toUtf8().constData(), O_RDONLY);
126	if (!vf) {
127		return nullptr;
128	}
129
130	mCore* core = nullptr;
131	switch (platform) {
132#ifdef M_CORE_GBA
133	case PLATFORM_GBA:
134		core = GBACoreCreate();
135		break;
136#endif
137	default:
138		vf->close(vf);
139		return nullptr;
140	}
141	if (!core) {
142		vf->close(vf);
143		return nullptr;
144	}
145
146	core->init(core);
147	mCoreInitConfig(core, nullptr);
148
149	if (m_config) {
150		mCoreLoadForeignConfig(core, m_config);
151	}
152
153	core->loadBIOS(core, vf, 0);
154
155	mCoreConfigSetOverrideIntValue(&core->config, "useBios", 1);
156	mCoreConfigSetOverrideIntValue(&core->config, "skipBios", 0);
157
158	QByteArray bytes(info.baseName().toUtf8());
159	strncpy(core->dirs.baseName, bytes.constData(), sizeof(core->dirs.baseName));
160
161	bytes = info.dir().canonicalPath().toUtf8();
162	mDirectorySetAttachBase(&core->dirs, VDirOpen(bytes.constData()));
163
164	CoreController* cc = new CoreController(core);
165	if (m_multiplayer) {
166		cc->setMultiplayerController(m_multiplayer);
167	}
168	emit coreLoaded(cc);
169	return cc;
170}