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Improve context lost handling

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This commit is contained in:
schmelczerandras 2020-11-09 11:53:43 +01:00
commit 77ade80753
1 changed files with 26 additions and 21 deletions
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38
src/graphics/rendering/renderer/context-aware-renderer.ts
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@ -2,6 +2,7 @@ import { ReadonlyVec2, vec2 } from 'gl-matrix';
import { Drawable } from '../../../drawables/drawable';
import { DrawableDescriptor } from '../../../drawables/drawable-descriptor';
import { formatLog } from '../../../helper/format-log';
import { ContextLostException } from '../../graphics-library/context-lost-exception';
import { RuntimeSettings } from '../settings/runtime-settings';
import { StartupSettings } from '../settings/startup-settings';
import { Renderer } from './renderer';
@ -40,31 +41,27 @@ export class ContextAwareRenderer implements Renderer {
}
private createRenderer() {
try {
this.renderer = new RendererImplementation(
this.canvas,
this.descriptors,
this.ignoreWebGL2
);
this.readyPromise = this.renderer.initialize(this.settingsOverrides);
this.waitForRenderer();
} catch (e) {
if (!e.message.includes('Context lost')) {
throw e;
}
}
this.renderer = new RendererImplementation(
this.canvas,
this.descriptors,
this.ignoreWebGL2
);
this.readyPromise = this.renderer.initialize(this.settingsOverrides);
this.waitForRenderer();
}
private async waitForRenderer() {
try {
await this.readyPromise;
this.isRendererReady = true;
} catch (e) {
if (!e.message.includes('Context lost')) {
throw e;
if (e instanceof ContextLostException) {
this.createRenderer();
return;
}
throw e;
}
this.isRendererReady = true;
this.setRuntimeSettings(this.runtimeOverrides);
if (this.previousViewAreaTopLeft && this.previousViewAreaSize) {
this.setViewArea(this.previousViewAreaTopLeft, this.previousViewAreaSize);
@ -88,7 +85,7 @@ export class ContextAwareRenderer implements Renderer {
try {
return f();
} catch (e) {
if (e.message.includes('Context lost')) {
if (e instanceof ContextLostException) {
this.isRendererReady = false;
return defaultValue;
}
@ -100,11 +97,14 @@ export class ContextAwareRenderer implements Renderer {
}
public get canvasSize(): ReadonlyVec2 {
return this.handle(() => this.renderer.canvasSize, vec2.create());
return this.handle(() => this.renderer.canvasSize, vec2.fromValues(1, 1));
}
public get viewAreaSize(): ReadonlyVec2 {
return this.handle(() => this.renderer.viewAreaSize, vec2.create());
return this.handle(
() => this.renderer.viewAreaSize,
this.previousViewAreaSize ?? vec2.fromValues(1, 1)
);
}
public get insights(): RendererInfo | null {