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GPU accelerated rendering & Mouse-handler optimization #146

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merged 10 commits into from
May 22, 2024
Merged

GPU accelerated rendering & Mouse-handler optimization #146

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602686b
summarize edges setting under performance section & default on
LeandroTreu May 8, 2024
e18930f
comment-out isBlank function that prevents GPU acceleration
LeandroTreu May 8, 2024
cbdfb71
merge master
LeandroTreu May 8, 2024
6a8d093
reduced ctx calls for summary and plus symbols
LeandroTreu May 10, 2024
2ed6044
removed old commit relics, ctx.ellipse comment
LeandroTreu May 11, 2024
09ce2eb
added arrow LOD check for deferred edges
LeandroTreu May 11, 2024
8063ac8
moushandler more efficient hover computation
LeandroTreu May 16, 2024
b96291d
Merge branch 'master' into ltreu-sa-hrendering
LeandroTreu May 16, 2024
7001cf8
replaced drawEllipse call, canvas ctx settings comments
LeandroTreu May 17, 2024
172af61
summarize edges default off, comments
LeandroTreu May 22, 2024
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15 changes: 10 additions & 5 deletions src/renderer/canvas_manager.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -222,6 +222,9 @@ export class CanvasManager {
this.indices = [];
}

// TODO: WARNING! This function uses ctx.getImageData() which forces
// the browser to turn off GPU accelerated canvas painting!
// It needs to be reworked to not use getImageData() anymore.
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public isBlank(): boolean {
const ctx = this.canvas.getContext('2d');
if (!ctx)
Expand All @@ -247,11 +250,13 @@ export class CanvasManager {
return;
this.contention++;
this.request_scale = true;
if (this.isBlank()) {
this.renderer.set_bgcolor('black');
this.renderer.zoom_to_view(null, false);
diff = 0.01;
}

// Don't use the easteregg feature as long as isBlank() is not fixed!
// if (this.isBlank()) {
// this.renderer.set_bgcolor('black');
// this.renderer.zoom_to_view(null, false);
// diff = 0.01;
// }

this.scale_origin.x = x;
this.scale_origin.y = y;
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