On 17.05.2016 21:24, Vadim Pakhnushev wrote:
On 17.05.2016 21:07, Vadim Pakhnushev wrote:
On 17.05.2016 19:01, Sergey Bylokhov wrote:
On 17.05.16 18:54, Vadim Pakhnushev wrote:
For me this bug reproduces only when running through the RDP and with
-Dsun.java2d.d3d=false flag.
Basically each DescribePixelFormat takes about 40-60 ms when running
without hardware acceleration because it calls LoadLibrary/FreeLibrary
for opengl32.dll every time.
So the fix is to cache the handle to the dll.
It is needed even in case of d3d=true?
(D3DGraphicsDevice extends Win32GraphicsDevice)
Not really. Although I don't see any harm to it.
Anyway, I think that this fix could be made even more concise
provided that we don't free the handle.
So I moved this code to the
Java_sun_awt_Win32GraphicsDevice_getMaxConfigsImpl which is not
called in case of d3d:
http://cr.openjdk.java.net/~vadim/6477756/webrev.01/
Actually this is wrong as this function could potentially be called
many times resulting in the handle leak.
I think the first fix is better even if it loads the dll in case of
d3d=true
Vadim
I've updated http://cr.openjdk.java.net/~vadim/6477756/webrev.01/ in place.
I left the code in the initIDs function. Given that it's called only
once, I've simplified it to not use the static variable.
Vadim
