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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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
* of the License, 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; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "glk/glulxe/glulxe.h"
#include "common/config-manager.h"
#include "common/translation.h"
namespace Glk {
namespace Glulxe {
Glulxe *g_vm;
Glulxe::Glulxe(OSystem *syst, const GlkGameDescription &gameDesc) : GlkAPI(syst, gameDesc),
vm_exited_cleanly(false), gamefile_start(0), gamefile_len(0), memmap(nullptr), stack(nullptr),
ramstart(0), endgamefile(0), origendmem(0), stacksize(0), startfuncaddr(0), checksum(0),
stackptr(0), frameptr(0), pc(0), prevpc(0), origstringtable(0), stringtable(0), valstackbase(0),
localsbase(0), endmem(0), protectstart(0), protectend(0),
stream_char_handler(nullptr), stream_unichar_handler(nullptr),
// main
library_autorestore_hook(nullptr),
// accel
classes_table(0), indiv_prop_start(0), class_metaclass(0), object_metaclass(0),
routine_metaclass(0), string_metaclass(0), self(0), num_attr_bytes(0), cpv__start(0),
accelentries(nullptr),
// heap
heap_start(0), alloc_count(0), heap_head(nullptr), heap_tail(nullptr),
// serial
max_undo_level(8), undo_chain_size(0), undo_chain_num(0), undo_chain(nullptr), ramcache(nullptr),
// string
iosys_mode(0), iosys_rock(0), tablecache_valid(false), glkio_unichar_han_ptr(nullptr) {
g_vm = this;
glkopInit();
}
void Glulxe::runGame() {
if (!is_gamefile_valid())
return;
setup_vm();
if (!init_dispatch())
return;
if (library_autorestore_hook)
library_autorestore_hook();
execute_loop();
finalize_vm();
gamefile_start = 0;
gamefile_len = 0;
init_err = nullptr;
vm_exited_cleanly = true;
profile_quit();
}
bool Glulxe::is_gamefile_valid() {
if (_gameFile.size() < 8) {
GUIErrorMessage(_("This is too short to be a valid Glulx file."));
return false;
}
if (_gameFile.readUint32BE() != MKTAG('G', 'l', 'u', 'l')) {
GUIErrorMessage(_("This is not a valid Glulx file."));
return false;
}
// We support version 2.0 through 3.1.*
uint version = _gameFile.readUint32BE();
if (version < 0x20000) {
GUIErrorMessage(_("This Glulx file is too old a version to execute."));
return false;
}
if (version >= 0x30200) {
GUIErrorMessage(_("This Glulx file is too new a version to execute."));
return false;
}
return true;
}
void Glulxe::fatal_error_handler(const char *str, const char *arg, bool useVal, int val) {
Common::String msg = Common::String::format("Glulxe fatal error: %s", str);
if (arg || useVal) {
msg += " (";
if (arg)
msg += Common::String::format("%s", arg);
if (arg && useVal)
msg += " ";
if (useVal)
msg += Common::String::format("%x", val);
msg += ")";
}
error("%s", msg.c_str());
}
void Glulxe::nonfatal_warning_handler(const char *str, const char *arg, bool useVal, int val) {
Common::String msg = Common::String::format("Glulxe warning: %s", str);
if (arg || useVal) {
msg += " (";
if (arg)
msg += Common::String::format("%s", arg);
if (arg && useVal)
msg += " ";
if (useVal)
msg += Common::String::format("%x", val);
msg += ")";
}
warning("%s", msg.c_str());
}
void Glulxe::glulx_sort(void *addr, int count, int size, int(*comparefunc)(const void *p1, const void *p2)) {
qsort(addr, count, size, comparefunc);
}
} // End of namespace Glulxe
} // End of namespace Glk
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