dingusppc/machines/machineproperties.h

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/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-23 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/>.
*/
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#include <cinttypes>
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#include <limits>
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#include <map>
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#include <string>
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#include <vector>
#include <memory>
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#ifndef MACHINE_PROPERTIES_H
#define MACHINE_PROPERTIES_H
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using namespace std;
/** Property types. */
enum PropType : int {
PROP_TYPE_UNKNOWN = 0,
PROP_TYPE_STRING = 1,
PROP_TYPE_INTEGER = 2,
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PROP_TYPE_BINARY = 3, // binary aka on/off switch
};
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/** Check types for property values. */
enum CheckType : int {
CHECK_TYPE_NONE = 0,
CHECK_TYPE_RANGE = 1,
CHECK_TYPE_LIST = 2,
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};
/** Abstract base class for properties. */
class BasicProperty {
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public:
BasicProperty(PropType type, string val) {
this->type = type;
set_string(val);
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}
virtual ~BasicProperty() = default;
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/* Clone method for copying derived property objects. */
virtual BasicProperty* clone() const = 0;
virtual string get_string() {
return this->val;
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}
virtual void set_string(string str) {
this->val = str;
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}
virtual PropType get_type() {
return this->type;
}
protected:
PropType type;
string val;
};
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/** Property class that holds a string value. */
class StrProperty : public BasicProperty {
public:
StrProperty(string str)
: BasicProperty(PROP_TYPE_STRING, str)
{
this->check_type = CHECK_TYPE_NONE;
this->vec.clear();
}
/* construct a string property with a list of valid values. */
StrProperty(string str, vector<string> vec)
: BasicProperty(PROP_TYPE_STRING, str)
{
this->check_type = CHECK_TYPE_LIST;
this->vec = vec;
}
BasicProperty* clone() const { return new StrProperty(*this); }
/* override BasicProperty::set_string() and perform checks */
void set_string(string str);
string get_valid_values_as_str();
protected:
bool check_val(string str);
private:
CheckType check_type;
vector<string> vec;
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};
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/** Property class that holds an integer value. */
class IntProperty : public BasicProperty {
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public:
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/* construct an integer property without value check. */
IntProperty(uint32_t val)
: BasicProperty(PROP_TYPE_INTEGER, to_string(val))
{
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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();
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}
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/* 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))
{
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this->int_val = val;
this->min = min;
this->max = max;
this->check_type = CHECK_TYPE_RANGE;
this->vec.clear();
}
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/* 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;
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this->vec = vec;
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}
BasicProperty* clone() const { return new IntProperty(*this); }
uint32_t get_int();
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string get_valid_values_as_str();
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protected:
bool check_val(uint32_t val);
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private:
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uint32_t int_val;
CheckType check_type;
uint32_t min;
uint32_t max;
vector<uint32_t> vec;
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};
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/** Property class that holds a binary value. */
class BinProperty : public BasicProperty {
public:
BinProperty(int val)
: BasicProperty(PROP_TYPE_BINARY, (val & 1) ? "on" : "off")
{
this->bin_val = val & 1;
};
BasicProperty* clone() const { return new BinProperty(*this); }
// override BasicProperty::set_string() and perform checks
void set_string(string str);
string get_valid_values_as_str() {
return string("on, off, ON, OFF");
};
int get_val() { return this->bin_val; };
private:
int bin_val;
};
void parse_device_path(string dev_path, string& bus_id, uint32_t& dev_num);
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/** Special map type for specifying machine presets. */
typedef map<string, BasicProperty*> PropMap;
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/** Global map that holds settings for the running machine. */
extern map<string, unique_ptr<BasicProperty>> gMachineSettings;
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/** 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()
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#define GET_BIN_PROP(name) \
dynamic_cast<BinProperty*>(gMachineSettings.at(name).get())->get_val()
#endif // MACHINE_PROPERTIES_H