dingusppc/machines/machineproperties.h
2021-10-23 21:00:31 +02:00

216 lines
6.0 KiB
C++

/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-21 divingkatae and maximum
(theweirdo) spatium
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
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 3 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, see <https://www.gnu.org/licenses/>.
*/
#include <endianswap.h>
#include <loguru.hpp>
#include <algorithm>
#include <cinttypes>
#include <string>
#include <map>
#include <memory>
#include <limits>
#include <sstream>
#include <utility>
#include <vector>
#ifndef MACHINE_PROPERTIES_H
#define MACHINE_PROPERTIES_H
using namespace std;
#define ILLEGAL_DEVICE_VALUE 0x168A523B
/** Property types. */
enum PropType : int {
PROP_TYPE_UNKNOWN = 0,
PROP_TYPE_STRING = 1,
PROP_TYPE_INTEGER = 2,
};
/** Check types for property values. */
enum CheckType : int {
CHECK_TYPE_NONE = 0,
CHECK_TYPE_RANGE = 1,
CHECK_TYPE_LIST = 2,
};
/** Abstract base class for properties. */
class BasicProperty {
public:
BasicProperty(PropType type, string val) {
this->type = type;
set_string(val);
}
virtual ~BasicProperty() = default;
/* Clone method for copying derived property objects. */
virtual BasicProperty* clone() const = 0;
string get_string() {
return this->val;
}
void set_string(string str) {
this->val = str;
}
PropType get_type() {
return this->type;
}
protected:
PropType type;
string val;
};
/** Property class that holds a string value. */
class StrProperty : public BasicProperty {
public:
StrProperty(string str)
: BasicProperty(PROP_TYPE_STRING, str) {}
BasicProperty* clone() const { return new StrProperty(*this); }
};
/** Property class that holds an integer value. */
class IntProperty : public BasicProperty {
public:
/* construct an integer property without value check. */
IntProperty(uint32_t val)
: BasicProperty(PROP_TYPE_INTEGER, to_string(val))
{
this->int_val = val;
this->min = std::numeric_limits<uint32_t>::min();
this->max = std::numeric_limits<uint32_t>::max();
this->check_type = CHECK_TYPE_NONE;
this->vec.clear();
}
/* construct an integer property with a predefined range. */
IntProperty(uint32_t val, uint32_t min, uint32_t max)
: BasicProperty(PROP_TYPE_INTEGER, to_string(val))
{
this->int_val = val;
this->min = min;
this->max = max;
this->check_type = CHECK_TYPE_RANGE;
this->vec.clear();
}
/* construct an integer property with a list of valid values. */
IntProperty(uint32_t val, vector<uint32_t> vec)
: BasicProperty(PROP_TYPE_INTEGER, to_string(val))
{
this->int_val = val;
this->min = std::numeric_limits<uint32_t>::min();
this->max = std::numeric_limits<uint32_t>::max();
this->check_type = CHECK_TYPE_LIST;
this->vec = vec;
}
BasicProperty* clone() const { return new IntProperty(*this); }
uint32_t get_int() {
try {
uint32_t result = strtoul(this->get_string().c_str(), 0, 0);
/* perform value check */
if (!this->check_val(result)) {
LOG_F(ERROR, "Invalid property value %d!", result);
LOG_F(ERROR, "Valid values: %s!",
this->get_valid_values_as_str().c_str());
this->set_string(to_string(this->int_val));
} else {
this->int_val = result;
}
} catch (string bad_string) {
LOG_F(ERROR, "Could not convert string %s to an integer!",
bad_string.c_str());
}
return this->int_val;
}
string get_valid_values_as_str() {
stringstream ss;
switch (this->check_type) {
case CHECK_TYPE_RANGE:
ss << "[" << this->min << "..." << this->max << "]";
return ss.str();
case CHECK_TYPE_LIST: {
bool first = true;
for (auto it = begin(this->vec); it != end(this->vec); ++it) {
if (!first)
ss << ", ";
ss << *it;
first = false;
}
return ss.str();
}
default:
return string("None");
}
}
protected:
bool check_val(uint32_t val) {
switch (this->check_type) {
case CHECK_TYPE_RANGE:
if (val < this->min || val > this->max)
return false;
else
return true;
case CHECK_TYPE_LIST:
if (find(this->vec.begin(), this->vec.end(), val) != this->vec.end())
return true;
else
return false;
default:
return true;
}
}
private:
uint32_t int_val;
CheckType check_type;
uint32_t min;
uint32_t max;
vector<uint32_t> vec;
};
/** Special map type for specifying machine presets. */
typedef map<string, BasicProperty*> PropMap;
/** Global map that holds settings for the running machine. */
extern map<string, unique_ptr<BasicProperty>> gMachineSettings;
/** Conveniency macros to hide complex casts. */
#define GET_STR_PROP(name) \
dynamic_cast<StrProperty*>(gMachineSettings.at(name).get())->get_string()
#define GET_INT_PROP(name) \
dynamic_cast<IntProperty*>(gMachineSettings.at(name).get())->get_int()
#endif /* MACHINE_PROPERTIES_H */