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FMXExternalPumpBrowser slow typing

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Esico
Posts: 11
Joined: Wed Jan 01, 2020 4:39 pm

FMXExternalPumpBrowser slow typing

Post by Esico »

Hi,

I was looking at the FMXExternalPumpBrowser demo. About this demo: FMXExternalPumpBrowser is made in a similar way than the FMX demo in DCEF3. It uses the OSR mode with an external pump.

The problem is that filling in forms takes forever. Keystrokes are very laggy. I guess thats because of sending messages in order to intercept typing? Is this lag solvable ?

Sincerely,
Edward
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salvadordf
Posts: 4016
Joined: Thu Feb 02, 2017 12:24 pm
Location: Spain
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Re: FMXExternalPumpBrowser slow typing

Post by salvadordf »

The only way I see to speed up that demo is using DirectX. CEF has a TChromiumCore.OnAcceleratedPaint event that uses a DX texture but we still use the TChromiumCore.OnPaint event with the raw bitmap pixels.
Esico
Posts: 11
Joined: Wed Jan 01, 2020 4:39 pm

Re: FMXExternalPumpBrowser slow typing

Post by Esico »

the rendering seems fast enough though textures will be an improvement for sure.
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