mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2025-04-02 11:02:17 -04:00
101 lines
2.8 KiB
Go
101 lines
2.8 KiB
Go
// This file is part of Gopher2600.
|
|
//
|
|
// Gopher2600 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.
|
|
//
|
|
// Gopher2600 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 Gopher2600. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
package setup
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/jetsetilly/gopher2600/database"
|
|
"github.com/jetsetilly/gopher2600/hardware"
|
|
)
|
|
|
|
const televisionEntryType = "tv"
|
|
|
|
const (
|
|
televisionFieldCartHash int = iota
|
|
televisionFieldCartName
|
|
televisionFieldSpec
|
|
numtelevisionFields
|
|
)
|
|
|
|
// television is used to television cartridge memory after cartridge has been
|
|
// attached/loaded.
|
|
type television struct {
|
|
cartHash string
|
|
cartName string
|
|
spec string
|
|
}
|
|
|
|
func deserialiseTelevisionEntry(fields database.SerialisedEntry) (database.Entry, error) {
|
|
set := &television{}
|
|
|
|
// basic sanity check
|
|
if len(fields) > numtelevisionFields {
|
|
return nil, fmt.Errorf("television: too many fields in television entry")
|
|
}
|
|
if len(fields) < numtelevisionFields {
|
|
return nil, fmt.Errorf("television: too few fields in television entry")
|
|
}
|
|
|
|
set.cartHash = fields[televisionFieldCartHash]
|
|
set.cartName = fields[televisionFieldCartName]
|
|
set.spec = fields[televisionFieldSpec]
|
|
|
|
return set, nil
|
|
}
|
|
|
|
// EntryType implements the database.Entry interface.
|
|
func (set television) EntryType() string {
|
|
return televisionEntryType
|
|
}
|
|
|
|
// Serialise implements the database.Entry interface.
|
|
func (set *television) Serialise() (database.SerialisedEntry, error) {
|
|
return database.SerialisedEntry{
|
|
set.cartHash,
|
|
set.cartName,
|
|
set.spec,
|
|
}, nil
|
|
}
|
|
|
|
// CleanUp implements the database.Entry interface.
|
|
func (set television) CleanUp() error {
|
|
// no cleanup necessary
|
|
return nil
|
|
}
|
|
|
|
// matchCartHash implements setupEntry interface.
|
|
func (set television) matchCartHash(hash string) bool {
|
|
return set.cartHash == hash
|
|
}
|
|
|
|
// apply implements setupEntry interface.
|
|
func (set television) apply(vcs *hardware.VCS) (string, error) {
|
|
// because the apply function is run after attaching the cartridge to the
|
|
// VCS, any setup entries will take precedence over any spec in the
|
|
// cartridge filename.
|
|
//
|
|
// the SetSpecConditional() function however, will only change spec if the
|
|
// original spec request is AUTO. In other words, a setup entry will not
|
|
// take precedence over an explicit startup option.
|
|
|
|
err := vcs.TV.SetSpecConditional(set.spec)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
return fmt.Sprintf("forcing %s mode: %s", set.spec, set.cartName), nil
|
|
}
|