c_meyer/pxt-ev3
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Limit screen updates to once every 30ms and only if needed.

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This commit is contained in:
Sam El-Husseini 2017-07-12 12:26:14 +03:00
parent 8215e8446a
commit 5ea8048f0c
2 changed files with 10 additions and 1 deletions
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3
sim/state/screen.ts
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@ -2,6 +2,7 @@
namespace pxsim { namespace pxsim {
export class EV3ScreenState { export class EV3ScreenState {
shouldUpdate: boolean;
points: {[x: number]: {[y: number]: number}}; points: {[x: number]: {[y: number]: number}};
constructor() { constructor() {
this.points = {}; this.points = {};
@ -14,6 +15,7 @@ namespace pxsim {
const xPoints = this.points[x] const xPoints = this.points[x]
if (!xPoints) this.points[x] = {}; if (!xPoints) this.points[x] = {};
this.points[x][y] = v; this.points[x][y] = v;
this.shouldUpdate = true;
} }
} }
} }
@ -24,7 +26,6 @@ namespace pxsim.screen {
export function _setPixel(x: number, y: number, mode: Draw) { export function _setPixel(x: number, y: number, mode: Draw) {
const screenState = (board() as DalBoard).screenState; const screenState = (board() as DalBoard).screenState;
screenState.setPixel(x, y, mode); screenState.setPixel(x, y, mode);
runtime.queueDisplayUpdate();
} }

8
sim/visuals/board.ts
View File

@ -284,6 +284,11 @@ namespace pxsim.visuals {
this.updateState(); this.updateState();
this.attachEvents(); this.attachEvents();
} }
let board = this;
window.setInterval(function(){
board.updateScreen();
}, 30);
} }
public getView(): SVGAndSize<SVGSVGElement> { public getView(): SVGAndSize<SVGSVGElement> {
@ -459,6 +464,9 @@ namespace pxsim.visuals {
let state = this.board; let state = this.board;
if (!state || !state.screenState) return; if (!state || !state.screenState) return;
if (!state.screenState.shouldUpdate) return;
state.screenState.shouldUpdate = false;
this.screenCanvasData = this.screenCanvasCtx.getImageData(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT); this.screenCanvasData = this.screenCanvasCtx.getImageData(0, 0, SCREEN_WIDTH, SCREEN_HEIGHT);
Object.keys(state.screenState.points).forEach(xStr => { Object.keys(state.screenState.points).forEach(xStr => {