I only read the code portions I commented on below and the ones you
indicated you had changed. I'm assuming there are no other code changes
in this webrev...?
This is getting really close to final which is good since I'll be
talking about this in my JavaOne talk next week... ;)
In SG2D.scaleImage - the branch that uses transformImage uses the raw
transform which is expecting to transform an unscaled image. You'll
need to modify the transform accordingly so the result doesn't end up
double-sized.
BIGC, line 73 - shouldn't you pass in scaleX,scaleY to the constructor?
Win32GD.c, lines 90,91 - I don't think I was clear below - is there a
need to have these initialized inline here with "= 1.0f" when they are
initialized in the constructor anyway? Are we worried that they'll be
accessed before the initScaleFactors() call can set them to appropriate
values (in which case we should then be worried that they'll be the
hard-coded 1.0 value instead of the "real" value)?
Win32GD.c - I think I'm going to add an optional "x" to the scale
factors in JavaFX for completeness. Thus:
scale=Ndpi means scale factor of N/96
scale=N% means scale factor of N/100
scale=N.Mx means scale factor of N.M
scale=N.M also means scale factor of N.M (x is implicitly assumed)
The reason for this is both to have an explicit token for the regular
scale factor and also so that this matches with the default image suffix
of "@2x" so that we can add more ways to provide alternate media such as
"@120dpi" which are consistent with the values we use here.
BTW, we need to discuss ways to automate loading alternate media beyond
@2x at some point...
...jim
On 10/21/15 6:34 AM, Alexander Scherbatiy wrote:
Could you review the updated fix:
http://cr.openjdk.java.net/~alexsch/8073320/webrev.01/
- xform is concatenated with transform in SG2D.getResolutionVariant()
method
- imagepipe.transformImage() is used for drawImage(Image,
AffineTransform,...) case
- scale factors are made final in BufImgSurfaceData
- two arrays are used for configs caching in BIGC
- scale factors intialized from properties are moved to the static
block in Win32GD
On 10/10/2015 3:14 AM, Jim Graham wrote:
Hi Alexandr,
Just 2 potential issues I found:
SG2D.java - getResolutionVariant() doesn't take a transform so it
can't take into account the scaling in the transform handed to
drawImage(img, xform). We can leave that as a follow-on bug fix (it
won't do bad things, but it may not pick the best resolution source
image).
WGLOffscreenSD (in WGLSD.java) - does peer.getBounds() cache the bounds?
No. peer.getBounds() directly calls targetComponent.getBounds()
which returns a copy of original bounds.
Thanks,
Alexandr.
If so, then every time we call get bounds on the WGLWSD we will
permanently modify the peer's bounds. Would it be better to not make
the assumption and just make a protected copy here (perhaps with scale
!= 1?).
WGLWindowSD - same comment
D3DWindowSD - same comment
GDIWindowSD - same comment
The rest of these are tweaks and optimizations.
BISD.java - why do you have default initializers for the scale fields?
(There are only 2 constructors to cover.)
BIGC.java - [2][NUMTYPES] would involve a lot fewer objects than
[NUMTYPES][2]...
BIGC.java - Or... If we only have 2 variations of each type, why not
just have 2 static arrays instead of a double-indexed array?
int index = (scaleX && scaleY) ? 0 : 1;
becomes:
BIGC configarray = (scaleX && scaleY) ? standardArray : scaledArray;
SG2D.java - Another way of dealing with transform in scaleImage would
be to make a copy of the incoming transform and adjust it to match the
request, as in:
// You can probably assert that dxywh == 0,0,imgW,imgH, or:
AffineTransform renderTX;
if (dxywh == 0,0,imgW,imgH) {
renderTX = xform;
} else {
// Should never happen in practice...
AffineTransform renderTX = new AffineTransform(xform);
renderTX.translate(dx1, dy1);
renderTX.scale((dx2 - dx1) / imgW, (dy2 - dy1) / imgH);
}
double-nested-try {
imagepipe.transformImage(..., renderTX);
} catch (InvalidPipe...) {...}
It would be more code, though, since you'd have to have 2 sets of
"double-nested-try-catch(InvalidPipe)" blocks.
Win32GD.java - is there a need to have static initializers for the
scale fields?
I'll leave the native code review to someone more familiar with that
code base...
...jim
On 9/22/15 2:33 AM, Alexander Scherbatiy wrote:
Hello,
Could you review the fix:
bug: https://bugs.openjdk.java.net/browse/JDK-8073320
webrev: http://cr.openjdk.java.net/~alexsch/8073320/webrev.00
This is an initial part of the HiDPI Graphics support on Windows for
the JEP 263: HiDPI Graphics on Windows and Linux
http://openjdk.java.net/jeps/263
- scale factors are added to surface dates
- window size, events coordinates and font are scaled on native side
- backup buffered image is scaled in SunVolatileImage
- AwtRobot MouseMove() and GetRGBPixels() methods are updated
- GetDpiForMonitor function is used to query the specified monitor
for the horizontal and vertical DPI values.
If it is not available ID2D1Factory::GetDesktopDpi method is used
instead.
- "sun.java2d.uiScale.enabled", "sun.java2d.win.uiScale",
"sun.java2d.win.uiScaleX", and "sun.java2d.win.uiScaleY" options are
added for the testing purposes.
Thanks,
Alexandr.
