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app: move GPU context validation and retry logic to separate method

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Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-05-16 11:00:42 +02:00
parent 56dbaf326a
commit fd6f6c4485
1 changed files with 39 additions and 33 deletions
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app/window.go
+39 -33
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@@ -116,7 +116,44 @@ func (w *Window) update(frame *op.Ops) {
<-w.frameAck
}
func (w *Window) draw(frameStart time.Time, size image.Point, frame *op.Ops) {
func (w *Window) validateAndProcess(frameStart time.Time, size image.Point, sync bool, frame *op.Ops) error {
for {
if w.loop != nil {
if err := w.loop.Flush(); err != nil {
w.destroyGPU()
if err == window.ErrDeviceLost {
continue
}
return err
}
}
if w.loop == nil {
var ctx window.Context
ctx, err := w.driver.NewContext()
if err != nil {
return err
}
w.loop, err = newLoop(ctx)
if err != nil {
ctx.Release()
return err
}
}
w.processFrame(frameStart, size, frame)
if sync {
if err := w.loop.Flush(); err != nil {
w.destroyGPU()
if err == window.ErrDeviceLost {
continue
}
return err
}
}
return nil
}
}
func (w *Window) processFrame(frameStart time.Time, size image.Point, frame *op.Ops) {
sync := w.loop.Draw(size, frame)
w.queue.q.Frame(frame)
switch w.queue.q.TextInputState() {
@@ -287,38 +324,7 @@ func (w *Window) run(opts *window.Options) {
}
}
frame, gotFrame := w.waitFrame()
var err error
for {
if w.loop != nil {
if err = w.loop.Flush(); err != nil {
w.destroyGPU()
if err != window.ErrDeviceLost {
break
}
}
}
if w.loop == nil {
var ctx window.Context
ctx, err = w.driver.NewContext()
if err != nil {
break
}
w.loop, err = newLoop(ctx)
if err != nil {
ctx.Release()
break
}
}
w.draw(frameStart, e2.Size, frame)
if e2.Sync {
if err = w.loop.Flush(); err != nil {
w.destroyGPU()
}
}
if err != window.ErrDeviceLost {
break
}
}
err := w.validateAndProcess(frameStart, e2.Size, e2.Sync, frame)
if gotFrame {
// We're done with frame, let the client continue.
w.frameAck <- struct{}{}