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mirror of https://github.com/mpv-player/mpv synced 2024-10-30 04:46:41 +01:00
mpv/osdep/macOS_mpv_helper.swift
Akemi 9e466ee621 cocoa-cb: use libmpv's advanced rendering control and timing
this adds support for GPU rendered screenshots, DR (theoretically) and
possible other advanced functions in the future that need to be executed
from the rendering thread.
additionally frames that would be off screen or not be displayed when on
screen are being dropped now.
2018-11-13 20:43:29 +02:00

316 lines
11 KiB
Swift

/*
* 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
import OpenGL.GL
import OpenGL.GL3
let glDummy: @convention(c) () -> Void = {}
extension Bool {
init(_ num: Int32) {
self.init(num > 0)
}
}
class MPVHelper: NSObject {
var mpvHandle: OpaquePointer?
var mpvRenderContext: OpaquePointer?
var mpvLog: OpaquePointer?
var inputContext: OpaquePointer?
var mpctx: UnsafeMutablePointer<MPContext>?
var macOpts: macos_opts?
var fbo: GLint = 1
let deinitLock = NSLock()
init(_ mpv: OpaquePointer) {
super.init()
mpvHandle = mpv
mpvLog = mp_log_new(UnsafeMutablePointer<MPContext>(mpvHandle),
mp_client_get_log(mpvHandle), "cocoacb")
mpctx = UnsafeMutablePointer<MPContext>(mp_client_get_core(mpvHandle))
inputContext = mpctx!.pointee.input
if let app = NSApp as? Application {
let ptr = mp_get_config_group(mpctx!, mp_client_get_global(mpvHandle),
app.getMacOSConf())
macOpts = UnsafeMutablePointer<macos_opts>(OpaquePointer(ptr))!.pointee
}
mpv_observe_property(mpvHandle, 0, "ontop", MPV_FORMAT_FLAG)
mpv_observe_property(mpvHandle, 0, "border", MPV_FORMAT_FLAG)
mpv_observe_property(mpvHandle, 0, "keepaspect-window", MPV_FORMAT_FLAG)
mpv_observe_property(mpvHandle, 0, "macos-title-bar-style", MPV_FORMAT_STRING)
}
func initRender() {
var advanced: CInt = 1
let api = UnsafeMutableRawPointer(mutating: (MPV_RENDER_API_TYPE_OPENGL as NSString).utf8String)
var pAddress = mpv_opengl_init_params(get_proc_address: getProcAddress,
get_proc_address_ctx: nil,
extra_exts: nil)
var params: [mpv_render_param] = [
mpv_render_param(type: MPV_RENDER_PARAM_API_TYPE, data: api),
mpv_render_param(type: MPV_RENDER_PARAM_OPENGL_INIT_PARAMS, data: &pAddress),
mpv_render_param(type: MPV_RENDER_PARAM_ADVANCED_CONTROL, data: &advanced),
mpv_render_param()
]
if (mpv_render_context_create(&mpvRenderContext, mpvHandle, &params) < 0)
{
sendError("Render context init has failed.")
exit(1)
}
}
let getProcAddress: (@convention(c) (UnsafeMutableRawPointer?, UnsafePointer<Int8>?)
-> UnsafeMutableRawPointer?)! =
{
(ctx: UnsafeMutableRawPointer?, name: UnsafePointer<Int8>?)
-> UnsafeMutableRawPointer? in
let symbol: CFString = CFStringCreateWithCString(
kCFAllocatorDefault, name, kCFStringEncodingASCII)
let indentifier = CFBundleGetBundleWithIdentifier("com.apple.opengl" as CFString)
let addr = CFBundleGetFunctionPointerForName(indentifier, symbol)
if symbol as String == "glFlush" {
return unsafeBitCast(glDummy, to: UnsafeMutableRawPointer.self)
}
return addr
}
func setRenderUpdateCallback(_ callback: @escaping mpv_render_update_fn, context object: AnyObject) {
if mpvRenderContext == nil {
sendWarning("Init mpv render context first.")
} else {
mpv_render_context_set_update_callback(mpvRenderContext, callback, MPVHelper.bridge(obj: object))
}
}
func setRenderControlCallback(_ callback: @escaping mp_render_cb_control_fn, context object: AnyObject) {
if mpvRenderContext == nil {
sendWarning("Init mpv render context first.")
} else {
mp_render_context_set_control_callback(mpvRenderContext, callback, MPVHelper.bridge(obj: object))
}
}
func reportRenderFlip() {
if mpvRenderContext == nil { return }
mpv_render_context_report_swap(mpvRenderContext)
}
func isRenderUpdateFrame() -> Bool {
deinitLock.lock()
if mpvRenderContext == nil {
deinitLock.unlock()
return false
}
let flags: UInt64 = mpv_render_context_update(mpvRenderContext)
deinitLock.unlock()
return flags & UInt64(MPV_RENDER_UPDATE_FRAME.rawValue) > 0
}
func drawRender(_ surface: NSSize, skip: Bool = false) {
deinitLock.lock()
if mpvRenderContext != nil {
var i: GLint = 0
var flip: CInt = 1
var skip: CInt = skip ? 1 : 0
glGetIntegerv(GLenum(GL_DRAW_FRAMEBUFFER_BINDING), &i)
// CAOpenGLLayer has ownership of FBO zero yet can return it to us,
// so only utilize a newly received FBO ID if it is nonzero.
fbo = i != 0 ? i : fbo
var data = mpv_opengl_fbo(fbo: Int32(fbo),
w: Int32(surface.width),
h: Int32(surface.height),
internal_format: 0)
var params: [mpv_render_param] = [
mpv_render_param(type: MPV_RENDER_PARAM_OPENGL_FBO, data: &data),
mpv_render_param(type: MPV_RENDER_PARAM_FLIP_Y, data: &flip),
mpv_render_param(type: MPV_RENDER_PARAM_SKIP_RENDERING, data: &skip),
mpv_render_param()
]
mpv_render_context_render(mpvRenderContext, &params);
} else {
glClearColor(0, 0, 0, 1)
glClear(GLbitfield(GL_COLOR_BUFFER_BIT))
}
deinitLock.unlock()
}
func setRenderICCProfile(_ profile: NSColorSpace) {
if mpvRenderContext == nil { return }
guard var iccData = profile.iccProfileData else {
sendWarning("Invalid ICC profile data.")
return
}
let iccSize = iccData.count
iccData.withUnsafeMutableBytes { (u8Ptr: UnsafeMutablePointer<UInt8>) in
let iccBstr = bstrdup(nil, bstr(start: u8Ptr, len: iccSize))
var icc = mpv_byte_array(data: iccBstr.start, size: iccBstr.len)
let params = mpv_render_param(type: MPV_RENDER_PARAM_ICC_PROFILE, data: &icc)
mpv_render_context_set_parameter(mpvRenderContext, params)
}
}
func setRenderLux(_ lux: Int) {
if mpvRenderContext == nil { return }
var light = lux
let params = mpv_render_param(type: MPV_RENDER_PARAM_AMBIENT_LIGHT, data: &light)
mpv_render_context_set_parameter(mpvRenderContext, params)
}
func command(_ cmd: String) {
if mpvHandle == nil { return }
mpv_command_string(mpvHandle, cmd)
}
func commandAsync(_ cmd: [String?], id: UInt64 = 1) {
if mpvHandle == nil { return }
var mCmd = cmd
mCmd.append(nil)
var cargs = mCmd.map { $0.flatMap { UnsafePointer<Int8>(strdup($0)) } }
mpv_command_async(mpvHandle, id, &cargs)
for ptr in cargs { free(UnsafeMutablePointer(mutating: ptr)) }
}
func getBoolProperty(_ name: String) -> Bool {
if mpvHandle == nil { return false }
var value = Int32()
mpv_get_property(mpvHandle, name, MPV_FORMAT_FLAG, &value)
return value > 0
}
func getIntProperty(_ name: String) -> Int {
if mpvHandle == nil { return 0 }
var value = Int64()
mpv_get_property(mpvHandle, name, MPV_FORMAT_INT64, &value)
return Int(value)
}
func getStringProperty(_ name: String) -> String? {
if mpvHandle == nil { return nil }
let value = mpv_get_property_string(mpvHandle, name)
let str = value == nil ? nil : String(cString: value!)
mpv_free(value)
return str
}
func canBeDraggedAt(_ pos: NSPoint) -> Bool {
if inputContext == nil { return false }
let canDrag = !mp_input_test_dragging(inputContext!, Int32(pos.x), Int32(pos.y))
return canDrag
}
func setMousePosition(_ pos: NSPoint) {
if inputContext == nil { return }
mp_input_set_mouse_pos(inputContext!, Int32(pos.x), Int32(pos.y))
}
func putAxis(_ mpkey: Int32, delta: Double) {
if inputContext == nil { return }
mp_input_put_wheel(inputContext!, mpkey, delta)
}
func sendVerbose(_ msg: String) {
send(message: msg, type: MSGL_V)
}
func sendInfo(_ msg: String) {
send(message: msg, type: MSGL_INFO)
}
func sendWarning(_ msg: String) {
send(message: msg, type: MSGL_WARN)
}
func sendError(_ msg: String) {
send(message: msg, type: MSGL_ERR)
}
func send(message msg: String, type t: Int) {
if mpvLog == nil {
sendFallback(message: msg, type: t)
} else {
let args: [CVarArg] = [ (msg as NSString).utf8String! ]
mp_msg_va(mpvLog, Int32(t), "%s\n", getVaList(args))
}
}
func sendFallback(message msg: String, type t: Int) {
var level = "\u{001B}"
switch t {
case MSGL_V:
level += "[0;30m[VERBOSE]"
case MSGL_INFO:
level += "[0;30m[INFO]"
case MSGL_WARN:
level += "[0;33m"
case MSGL_ERR:
level += "[0;31m"
default:
level += "[0;30m"
}
print("\(level)[osx/cocoacb] \(msg)\u{001B}[0;30m")
}
func deinitRender() {
mpv_render_context_set_update_callback(mpvRenderContext, nil, nil)
mp_render_context_set_control_callback(mpvRenderContext, nil, nil)
deinitLock.lock()
mpv_render_context_free(mpvRenderContext)
mpvRenderContext = nil
deinitLock.unlock()
}
func deinitMPV(_ destroy: Bool = false) {
if destroy {
mpv_destroy(mpvHandle)
}
mpvHandle = nil
mpvLog = nil
inputContext = nil
mpctx = nil
}
// (__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()
}
// *(char **) MPV_FORMAT_STRING on mpv_event_property
class func mpvStringArrayToString(_ obj: UnsafeMutableRawPointer) -> String? {
let cstr = UnsafeMutablePointer<UnsafeMutablePointer<Int8>>(OpaquePointer(obj))
return String(cString: cstr[0])
}
// MPV_FORMAT_FLAG
class func mpvFlagToBool(_ obj: UnsafeMutableRawPointer) -> Bool? {
return UnsafePointer<Bool>(OpaquePointer(obj))?.pointee
}
}