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
