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Do not load new tiles when low on frame budget

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This commit is contained in:
ahocevar
2019-01-25 00:28:38 +01:00
parent 862553509a
commit 26ff8899c3
1 changed files with 4 additions and 2 deletions
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6
src/ol/PluggableMap.js
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@@ -934,8 +934,9 @@ class PluggableMap extends BaseObject {
if (frameState) {
const hints = frameState.viewHints;
if (hints[ViewHint.ANIMATING] || hints[ViewHint.INTERACTING]) {
maxTotalLoading = 8;
maxNewLoads = 2;
const lowOnFrameBudget = Date.now() - frameState.time > 8;
maxTotalLoading = lowOnFrameBudget ? 0 : 8;
maxNewLoads = lowOnFrameBudget ? 0 : 2;
}
}
if (tileQueue.getTilesLoading() < maxTotalLoading) {
@@ -943,6 +944,7 @@ class PluggableMap extends BaseObject {
tileQueue.loadMoreTiles(maxTotalLoading, maxNewLoads);
}
}
if (frameState && this.hasListener(RenderEventType.RENDERCOMPLETE) && !frameState.animate &&
!this.tileQueue_.getTilesLoading() && !getLoading(this.getLayers().getArray())) {
this.renderer_.dispatchRenderEvent(RenderEventType.RENDERCOMPLETE, frameState);