From d53ab1dff399a3811256a937685cfc67af2a6cf1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jo=C3=A3o=20Magalh=C3=A3es?= <joamag@gmail.com>
Date: Mon, 27 Feb 2023 22:01:25 +0000
Subject: [PATCH] feat: new high performance timers from emukit
---
frontends/web/ts/gb.ts | 14 +++++++-------
node_modules/emukit | 1 +
2 files changed, 8 insertions(+), 7 deletions(-)
create mode 160000 node_modules/emukit
diff --git a/frontends/web/ts/gb.ts b/frontends/web/ts/gb.ts
index f376320f..3dec704e 100644
--- a/frontends/web/ts/gb.ts
+++ b/frontends/web/ts/gb.ts
@@ -105,7 +105,7 @@ export class GameboyEmulator extends EmulatorBase implements Emulator {
private paused = false;
private nextTickTime = 0;
private fps = 0;
- private frameStart: number = new Date().getTime();
+ private frameStart: number = EmulatorBase.now();
private frameCount = 0;
private paletteIndex = 0;
private storeCycles: number = LOGIC_HZ * STORE_RATE;
@@ -163,7 +163,7 @@ export class GameboyEmulator extends EmulatorBase implements Emulator {
// obtains the current time, this value is going
// to be used to compute the need for tick computation
- let currentTime = new Date().getTime();
+ let currentTime = EmulatorBase.now();
try {
pending = this.tick(
@@ -214,7 +214,7 @@ export class GameboyEmulator extends EmulatorBase implements Emulator {
// calculates the amount of time until the next draw operation
// this is the amount of time that is going to be pending
- currentTime = new Date().getTime();
+ currentTime = EmulatorBase.now();
const pendingTime = Math.max(this.nextTickTime - currentTime, 0);
// waits a little bit for the next frame to be draw,
@@ -284,7 +284,7 @@ export class GameboyEmulator extends EmulatorBase implements Emulator {
// has been reached calculates the number of FPS and
// flushes the value to the screen
if (this.frameCount >= this.visualFrequency * FPS_SAMPLE_RATE) {
- const currentTime = new Date().getTime();
+ const currentTime = EmulatorBase.now();
const deltaTime = (currentTime - this.frameStart) / 1000;
const fps = Math.round(this.frameCount / deltaTime);
this.fps = fps;
@@ -604,7 +604,7 @@ export class GameboyEmulator extends EmulatorBase implements Emulator {
resume() {
this.paused = false;
- this.nextTickTime = new Date().getTime();
+ this.nextTickTime = EmulatorBase.now();
}
reset() {
@@ -638,11 +638,11 @@ export class GameboyEmulator extends EmulatorBase implements Emulator {
let cycles = 0;
this.pause();
try {
- const initial = Date.now();
+ const initial = EmulatorBase.now();
for (let i = 0; i < count; i++) {
cycles += this.gameBoy?.clock() ?? 0;
}
- const delta = (Date.now() - initial) / 1000;
+ const delta = (EmulatorBase.now() - initial) / 1000;
const frequency_mhz = cycles / delta / 1000 / 1000;
return {
delta: delta,
diff --git a/node_modules/emukit b/node_modules/emukit
new file mode 160000
index 00000000..b246b0d8
--- /dev/null
+++ b/node_modules/emukit
@@ -0,0 +1 @@
+Subproject commit b246b0d87d0ce2d891677369c8e4f6b7b4d13ca5
--
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