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Flush background canvas before allocating a new surface (flutter/engine#17308)

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Emmanuel Garcia 2020-03-24 20:10:10 -07:00 committed by GitHub
parent 700e276dd4
commit 11d0020dd6
1 changed files with 3 additions and 0 deletions
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engine/src/flutter/shell/platform/darwin/ios/framework/Source/FlutterPlatformViews.mm
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@ -451,6 +451,9 @@ bool FlutterPlatformViewsController::SubmitFrame(GrContext* gr_context,
std::shared_ptr<IOSContext> ios_context,
SkCanvas* background_canvas) {
DisposeViews();
// Resolve all pending GPU operations before allocating a new surface.
background_canvas->flush();
// Clipping the background canvas before drawing the picture recorders requires to
// save and restore the clip context.
SkAutoCanvasRestore save(background_canvas, /*doSave=*/true);