From ee6794225d2be8cb56afb9ba441a89d5e1319b87 Mon Sep 17 00:00:00 2001
From: der richter <der.richter@gmx.de>
Date: Sat, 6 Apr 2024 23:31:05 +0200
Subject: mac/vulkan: add support for frame timing via presentation feedback

---
 video/out/mac_common.swift     | 20 ++++++++++++++++++--
 video/out/vulkan/context_mac.m |  7 +++++++
 2 files changed, 25 insertions(+), 2 deletions(-)

(limited to 'video/out')

diff --git a/video/out/mac_common.swift b/video/out/mac_common.swift
index 4551c47d91..f29815d73d 100644
--- a/video/out/mac_common.swift
+++ b/video/out/mac_common.swift
@@ -20,6 +20,7 @@ import Cocoa
 class MacCommon: Common {
     @objc var layer: MetalLayer?
 
+    var presentation: Presentation?
     var timer: PreciseTimer?
     var swapTime: UInt64 = 0
     let swapLock: NSCondition = NSCondition()
@@ -30,6 +31,7 @@ class MacCommon: Common {
         super.init(option, log)
         self.vo = vo
         input = InputHelper(vo.pointee.input_ctx, option)
+        presentation = Presentation(common: self)
         timer = PreciseTimer(common: self)
 
         DispatchQueue.main.sync {
@@ -89,7 +91,7 @@ class MacCommon: Common {
     }
 
     @objc func swapBuffer() {
-        if option.mac.macos_render_timer != RENDER_TIMER_SYSTEM {
+        if option.mac.macos_render_timer > RENDER_TIMER_SYSTEM {
             swapLock.lock()
             while(swapTime < 1) {
                 swapLock.wait()
@@ -99,6 +101,15 @@ class MacCommon: Common {
         }
     }
 
+     @objc func fillVsync(info: UnsafeMutablePointer<vo_vsync_info>) {
+        if option.mac.macos_render_timer != RENDER_TIMER_PRESENTATION_FEEDBACK { return }
+
+        let next = presentation?.next()
+        info.pointee.vsync_duration = next?.duration ?? -1
+        info.pointee.skipped_vsyncs = next?.skipped ?? -1
+        info.pointee.last_queue_display_time = next?.time ?? -1
+     }
+
     override func displayLinkCallback(_ displayLink: CVDisplayLink,
                                             _ inNow: UnsafePointer<CVTimeStamp>,
                                      _ inOutputTime: UnsafePointer<CVTimeStamp>,
@@ -112,13 +123,18 @@ class MacCommon: Common {
             self.swapLock.unlock()
         }
 
-        if option.mac.macos_render_timer != RENDER_TIMER_SYSTEM {
+        if option.mac.macos_render_timer > RENDER_TIMER_SYSTEM {
             if let timer = self.timer, option.mac.macos_render_timer == RENDER_TIMER_PRECISE {
                 timer.scheduleAt(time: inOutputTime.pointee.hostTime, closure: signalSwap)
                 return kCVReturnSuccess
             }
 
             signalSwap()
+            return kCVReturnSuccess
+        }
+
+        if option.mac.macos_render_timer == RENDER_TIMER_PRESENTATION_FEEDBACK {
+            presentation?.add(time: inOutputTime.pointee)
         }
 
         return kCVReturnSuccess
diff --git a/video/out/vulkan/context_mac.m b/video/out/vulkan/context_mac.m
index be5c077155..bedd0d4f9e 100644
--- a/video/out/vulkan/context_mac.m
+++ b/video/out/vulkan/context_mac.m
@@ -44,6 +44,12 @@ static void mac_vk_swap_buffers(struct ra_ctx *ctx)
     [p->vo_mac swapBuffer];
 }
 
+static void mac_vk_get_vsync(struct ra_ctx *ctx, struct vo_vsync_info *info)
+{
+    struct priv *p = ctx->priv;
+    [p->vo_mac fillVsyncWithInfo:info];
+}
+
 static bool mac_vk_init(struct ra_ctx *ctx)
 {
     struct priv *p = ctx->priv = talloc_zero(ctx, struct priv);
@@ -66,6 +72,7 @@ static bool mac_vk_init(struct ra_ctx *ctx)
 
     struct ra_vk_ctx_params params = {
         .swap_buffers = mac_vk_swap_buffers,
+        .get_vsync = mac_vk_get_vsync,
     };
 
     VkInstance inst = vk->vkinst->instance;
-- 
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