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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
import Cocoa
typealias swift_wakeup_cb_fn = (@convention(c) (UnsafeMutableRawPointer?) -> Void)?
class MPVHelper: NSObject {
var log: LogHelper
var vo: UnsafeMutablePointer<vo>
var optsCachePtr: UnsafeMutablePointer<m_config_cache>
var optsPtr: UnsafeMutablePointer<mp_vo_opts>
var macOptsCachePtr: UnsafeMutablePointer<m_config_cache>
var macOptsPtr: UnsafeMutablePointer<macos_opts>
// these computed properties return a local copy of the struct accessed:
// - don't use if you rely on the pointers
// - only for reading
var vout: vo { get { return vo.pointee } }
var optsCache: m_config_cache { get { return optsCachePtr.pointee } }
var opts: mp_vo_opts { get { return optsPtr.pointee } }
var macOptsCache: m_config_cache { get { return macOptsCachePtr.pointee } }
var macOpts: macos_opts { get { return macOptsPtr.pointee } }
init(_ vo: UnsafeMutablePointer<vo>, _ log: LogHelper) {
self.vo = vo
self.log = log
guard let cache = m_config_cache_alloc(vo, vo.pointee.global, Application.getVoSubConf()),
let macCache = m_config_cache_alloc(vo, vo.pointee.global, Application.getMacOSConf()) else
{
// will never be hit, mp_get_config_group asserts for invalid groups
exit(1)
}
optsCachePtr = cache
optsPtr = UnsafeMutablePointer<mp_vo_opts>(OpaquePointer(cache.pointee.opts))
macOptsCachePtr = macCache
macOptsPtr = UnsafeMutablePointer<macos_opts>(OpaquePointer(macCache.pointee.opts))
}
func nextChangedOption(property: inout UnsafeMutableRawPointer?) -> Bool {
return m_config_cache_get_next_changed(optsCachePtr, &property)
}
func setOption(fullscreen: Bool) {
optsPtr.pointee.fullscreen = fullscreen
_ = withUnsafeMutableBytes(of: &optsPtr.pointee.fullscreen) { (ptr: UnsafeMutableRawBufferPointer) in
m_config_cache_write_opt(optsCachePtr, ptr.baseAddress)
}
}
func setOption(minimized: Bool) {
optsPtr.pointee.window_minimized = minimized
_ = withUnsafeMutableBytes(of: &optsPtr.pointee.window_minimized) { (ptr: UnsafeMutableRawBufferPointer) in
m_config_cache_write_opt(optsCachePtr, ptr.baseAddress)
}
}
func setOption(maximized: Bool) {
optsPtr.pointee.window_maximized = maximized
_ = withUnsafeMutableBytes(of: &optsPtr.pointee.window_maximized) { (ptr: UnsafeMutableRawBufferPointer) in
m_config_cache_write_opt(optsCachePtr, ptr.baseAddress)
}
}
func setMacOptionCallback(_ callback: swift_wakeup_cb_fn, context object: AnyObject) {
m_config_cache_set_wakeup_cb(macOptsCachePtr, callback, MPVHelper.bridge(obj: object))
}
func nextChangedMacOption(property: inout UnsafeMutableRawPointer?) -> Bool {
return m_config_cache_get_next_changed(macOptsCachePtr, &property)
}
// (__bridge void*)
class func bridge<T: AnyObject>(obj: T) -> UnsafeMutableRawPointer {
return UnsafeMutableRawPointer(Unmanaged.passUnretained(obj).toOpaque())
}
// (__bridge T*)
class func bridge<T: AnyObject>(ptr: UnsafeRawPointer) -> T {
return Unmanaged<T>.fromOpaque(ptr).takeUnretainedValue()
}
class func withUnsafeMutableRawPointers(_ arguments: [Any],
pointers: [UnsafeMutableRawPointer?] = [],
closure: (_ pointers: [UnsafeMutableRawPointer?]) -> Void) {
if arguments.count > 0 {
let args = Array(arguments.dropFirst(1))
var newPtrs = pointers
var firstArg = arguments.first
withUnsafeMutableBytes(of: &firstArg) { (ptr: UnsafeMutableRawBufferPointer) in
newPtrs.append(ptr.baseAddress)
withUnsafeMutableRawPointers(args, pointers: newPtrs, closure: closure)
}
return
}
closure(pointers)
}
class func getPointer<T>(_ value: inout T) -> UnsafeMutableRawPointer? {
return withUnsafeMutableBytes(of: &value) { (ptr: UnsafeMutableRawBufferPointer) in
ptr.baseAddress
}
}
}
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