FlutterVSyncWaiter.mm File Reference

#import "flutter/shell/platform/darwin/macos/framework/Source/FlutterVSyncWaiter.h"
#import "flutter/shell/platform/darwin/macos/framework/Source/FlutterDisplayLink.h"
#include "flutter/fml/logging.h"
#include <optional>
#include <vector>
#include <OSLog/OSLog.h>

Go to the source code of this file.

Macros
#define	VSYNC_TRACING_ENABLED   1
#define	TRACE_VSYNC(event_type, baton)

Variables
static const CFTimeInterval	kTimerLatencyCompensation = 0.001
FlutterDisplayLink *	_displayLink
void(^	_block )(CFTimeInterval, CFTimeInterval, uintptr_t)
NSRunLoop *	_runLoop
CFTimeInterval	_lastTargetTimestamp
BOOL	_warmUpFrame

Macro Definition Documentation

TRACE_VSYNC

#define TRACE_VSYNC	(		event_type,
			baton
	)

Value:

  do {                                                                                     \
    os_log_t log = os_log_create("FlutterVSync", "PointsOfInterest");                      \
    os_signpost_event_emit(log, OS_SIGNPOST_ID_EXCLUSIVE, event_type, "baton %lx", baton); \
  } while (0)

Definition at line 18 of file FlutterVSyncWaiter.mm.

VSYNC_TRACING_ENABLED

#define VSYNC_TRACING_ENABLED   1

Definition at line 10 of file FlutterVSyncWaiter.mm.

Variable Documentation

_block

void(^ _block) (CFTimeInterval, CFTimeInterval, uintptr_t)

Referenced by FlutterVSyncWaiter::initWithDisplayLink:block:, and FlutterVSyncWaiter::waitForVSync:.

_displayLink

FlutterDisplayLink* _displayLink

Initial value:

{
  std::optional<std::uintptr_t> _pendingBaton

Definition at line 36 of file FlutterVSyncWaiter.mm.

Referenced by FlutterVSyncWaiter::initWithDisplayLink:block:, and FlutterVSyncWaiter::waitForVSync:.

_lastTargetTimestamp

CFTimeInterval _lastTargetTimestamp

Definition at line 41 of file FlutterVSyncWaiter.mm.

Referenced by FlutterVSyncWaiter::waitForVSync:.

_runLoop

NSRunLoop* _runLoop

Definition at line 40 of file FlutterVSyncWaiter.mm.

Referenced by FlutterVSyncWaiter::waitForVSync:.

_warmUpFrame

BOOL _warmUpFrame

Definition at line 42 of file FlutterVSyncWaiter.mm.

Referenced by FlutterVSyncWaiter::initWithDisplayLink:block:, and FlutterVSyncWaiter::waitForVSync:.

kTimerLatencyCompensation

const CFTimeInterval kTimerLatencyCompensation = 0.001

static

Definition at line 34 of file FlutterVSyncWaiter.mm.

Referenced by FlutterVSyncWaiter::waitForVSync:.