Files
OpenEmuKit/Source/SystemShaderPresetStore.swift

92 lines
3.7 KiB
Swift

// Copyright (c) 2021, OpenEmu Team
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of the OpenEmu Team nor the
// names of its contributors may be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY OpenEmu Team ''AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL OpenEmu Team BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import Foundation
/// An object that manages the association of shader presets
/// to system cores.
public class SystemShaderPresetStore {
let store: UserDefaults
let presets: ShaderPresetStore
let shaders: OEShaderStore
public init(store: UserDefaults, presets: ShaderPresetStore, shaders: OEShaderStore) {
self.store = store
self.presets = presets
self.shaders = shaders
}
// MARK: - Public API
/// Gets or sets the name for the default preset.
public var defaultPresetByID: String {
get {
if let id = store.string(forKey: makeGlobalKey()), presets.exists(byID: id) {
return id
}
return "Pixellate"
}
set {
store.set(newValue, forKey: makeGlobalKey())
}
}
/// Returns the default shader preset.
public var defaultPreset: ShaderPreset {
presets.defaultPresetForShader(shaders.defaultShader)
}
/// Set the shader preset for the specified system.
/// - Parameters:
/// - preset: The preset to assign to the system.
/// - identifier: The identifier of the system.
public func setPreset(_ preset: ShaderPreset, forSystem identifier: String) {
store.set(preset.id, forKey: makeSystemKey(identifier))
}
/// Removes the preset assigned to the specified system.
/// - Parameter identifier: The system identifier to clear the preset.
public func resetPresetForSystem(_ identifier: String) {
store.removeObject(forKey: makeSystemKey(identifier))
}
/// Finds the shader preset assigned to the specified system.
/// - Parameter identifier: The identifier for the system.
/// - Returns: The shader preset assigned to the system.
public func findPresetForSystem(_ identifier: String) -> ShaderPreset? {
guard
let id = store.string(forKey: makeSystemKey(identifier)),
let preset = presets.findPreset(byID: id)
else { return nil }
return preset
}
// MARK: - Helpers
func makeGlobalKey() -> String { "videoShader.preset" }
func makeSystemKey(_ identifier: String) -> String { "videoShader.\(identifier).preset" }
}