On Sun, 17 Nov 2019 10:04:36 GMT, Dell Green 
<github.com+12861109+dellgr...@openjdk.org> wrote:

> On Sat, 16 Nov 2019 17:51:56 GMT, John Neffenger 
> <github.com+1413266+jgn...@openjdk.org> wrote:
> 
>> On Sat, 16 Nov 2019 06:09:35 GMT, Dell Green 
>> <github.com+12861109+dellgr...@openjdk.org> wrote:
>> 
>>> On Sat, 16 Nov 2019 00:32:31 GMT, John Neffenger 
>>> <github.com+1413266+jgn...@openjdk.org> wrote:
>>> 
>>>> On Wed, 13 Nov 2019 22:04:36 GMT, Dell Green 
>>>> <github.com+12861109+dellgr...@openjdk.org> wrote:
>>>> 
>>>>> On Wed, 13 Nov 2019 21:34:06 GMT, John Neffenger 
>>>>> <github.com+1413266+jgn...@openjdk.org> wrote:
>>>>> 
>>>>>> On Tue, 8 Oct 2019 12:03:42 GMT, Dell Green 
>>>>>> <12861109+dellgr...@users.noreply.github.com> wrote:
>>>>>> 
>>>>>>> Often on embedded systems a cursor is not a valid input modality. On 
>>>>>>> some of these systems, when the javafx toolkit initialises the native 
>>>>>>> hardware cursor, it produces artefacts which can be seen on screen (in 
>>>>>>> the framebuffer for example). This change adds a system property 
>>>>>>> "monocle.cursor.enabled" that can disable the creation of a native 
>>>>>>> cursor in each of the Monocle NativePlatform implementations in favour 
>>>>>>> of a NullCursor which is a no-op implementation of the NativeCursor 
>>>>>>> abstract class that all native cursors have to implement.
>>>>>>> 
>>>>>>> NullCursor class already existed and was being returned for some 
>>>>>>> implementations like AndroidPlatform and HeadlessPlatform. This change 
>>>>>>> builds upon that and conditionally returns NullCursor for all platforms.
>>>>>>> 
>>>>>>> A system property "monocle.debugcursor" has also been added to turn on 
>>>>>>> logging of which NativeCursor has been selected when the toolkit 
>>>>>>> initialises.
>>>>>>> 
>>>>>>> ----------------
>>>>>>> 
>>>>>>> Commits:
>>>>>>>  - cfbbc7dd: JDK-8087980: Add property to disable Monocle cursor
>>>>>>> 
>>>>>>> Changes: https://git.openjdk.java.net/jfx/pull/5/files
>>>>>>>  Webrev: https://webrevs.openjdk.java.net/jfx/5/webrev.00
>>>>>>>   Issue: https://bugs.openjdk.java.net/browse/JDK-8087980
>>>>>>>   Stats: 49 lines in 8 files changed: 40 ins; 0 del; 9 mod
>>>>>>>   Patch: https://git.openjdk.java.net/jfx/pull/5.diff
>>>>>>>   Fetch: git fetch https://git.openjdk.java.net/jfx pull/5/head:pull/5
>>>>>> 
>>>>>> modules/javafx.graphics/src/main/java/com/sun/glass/ui/monocle/NativePlatform.java
>>>>>>  line 50:
>>>>>> 
>>>>>>> 49:         AccessController.doPrivileged((PrivilegedAction<Boolean>) 
>>>>>>> () -> {
>>>>>>> 50:             final String str =
>>>>>>> 51:                 System.getProperty("monocle.debugcursor", "");
>>>>>> 
>>>>>> Just a nit, but why `monocle.debugcursor` rather than 
>>>>>> `monocle.cursor.debug` (my preference), or at least 
>>>>>> `monocle.debugCursor`? Below is the full list, for comparison, including 
>>>>>> the two added by this pull request.
>>>>>> 
>>>>>> monocle.cursor.enabled
>>>>>> monocle.debugcursor
>>>>>> monocle.epd.bitsPerPixel
>>>>>> monocle.epd.enableInversion
>>>>>> monocle.epd.forceMonochrome
>>>>>> monocle.epd.noWait
>>>>>> monocle.epd.rotate
>>>>>> monocle.epd.useDitheringY1
>>>>>> monocle.epd.useDitheringY4
>>>>>> monocle.epd.waveformMode
>>>>>> monocle.epd.y8inverted
>>>>>> monocle.input.<product>.flipXY
>>>>>> monocle.input.<product>.maxX
>>>>>> monocle.input.<product>.maxY
>>>>>> monocle.input.<product>.minX
>>>>>> monocle.input.<product>.minY
>>>>>> monocle.input.<product>.touchFilters
>>>>>> monocle.input.touchFilters
>>>>>> monocle.input.touchRadius
>>>>>> monocle.input.traceEvents
>>>>>> monocle.input.traceEvents.verbose
>>>>>> monocle.maliSignedStruct
>>>>>> monocle.platform
>>>>>> monocle.platform.traceConfig
>>>>>> monocle.screen.fb
>>>>>> monocle.stackSize
>>>>>> 
>>>>>> I'm nervous about our hidden API of system properties, and I'm as guilty 
>>>>>> as anyone with the nine properties I added for Monocle EPD. I think it 
>>>>>> might be okay as long as the code gets the property values only during 
>>>>>> class initialization. That should restrict their use to startup scripts 
>>>>>> and keep them out of application code trying to modify them *on-the-fly* 
>>>>>> at run time.
>>>>> 
>>>>> if i recall i originally started with the format you recommend as it made 
>>>>> more sense, and when looking for other debug logging across the javafx 
>>>>> stack I picked up on somewhat of a loose existing convention so changed 
>>>>> to match it. I guess it can be whatever everyone agrees upon. :)
>>>> 
>>>> On second thought, let's remove `monocle.debugcursor` and use a 
>>>> [PlatformLogger](https://github.com/openjdk/jfx/blob/master/modules/javafx.base/src/main/java/com/sun/javafx/logging/PlatformLogger.java).
>>>>  The JavaFX loggers are available from 
>>>> [Logging](https://github.com/openjdk/jfx/blob/master/modules/javafx.graphics/src/main/java/com/sun/javafx/util/Logging.java).
>>>>  In retrospect, that's how I managed to avoid any new *debug* properties 
>>>> for Monocle EPD even though it's packed with debugging and trace messages. 
>>>> For examples, see the variable `logger` in 
>>>> [EPDFrameBuffer](https://github.com/openjdk/jfx/blob/master/modules/javafx.graphics/src/main/java/com/sun/glass/ui/monocle/EPDFrameBuffer.java),
>>>>  where `logger.fine` is called for messages printed once per run, while 
>>>> `logger.finer` is called for messages printed once per rendered frame.
>>> 
>>> OK, that looks a better way to go. I'll sort out out an additional pull 
>>> request when back in work Monday. Off the top of your head can you remember 
>>> the syntax to change the logger level from command line when starting the 
>>> JVM?
>> 
>>> Off the top of your head can you remember the syntax to change the logger 
>>> level from command line when starting the JVM?
>> 
>> Here's how I use it. My Bash run script is **bin/run.sh**:
>> 
>> #!/bin/bash
>> # Runs the EPD JavaFX Animator program
>> JAVA_HOME=$HOME/opt/jdk-13.0.1+9
>> JAVAFX_LIB=$HOME/lib/armv6hf-sdk/lib
>> 
>> app_dir=$HOME/src/epd-javafx
>> app_jar=$app_dir/dist/epd-javafx.jar
>> logging=$app_dir/conf/logging.properties
>> 
>> $JAVA_HOME/bin/java -Djava.util.logging.config.file=$logging \
>>     --add-modules=javafx.graphics --module-path=$JAVAFX_LIB \
>>     -Dglass.platform=Monocle -Dmonocle.platform=EPD -Dprism.order=sw \
>>     -Dmonocle.input.18/0/0/0.maxX=800 -Dmonocle.input.18/0/0/0.maxY=600 \
>>     -Dmonocle.epd.waveformMode=4 -jar $app_jar $@
>> 
>> The logging properties are defined in **conf/logging.properties**:
>> 
>>  Properties
>> # Global properties
>> handlers = java.util.logging.ConsoleHandler
>> .level = INFO
>> 
>> # Handler specific properties
>> java.util.logging.ConsoleHandler.level = ALL
>> java.util.logging.ConsoleHandler.formatter = 
>> java.util.logging.SimpleFormatter
>> java.util.logging.SimpleFormatter.format=%4$s: %5$s%n
>> 
>> # Facility specific properties
>> javafx.level = FINE
>> 
>> The output looks like the following:
>> 
>> $ sudo bin/run.sh --pattern=3 --loops=0
>> FINE: EPD system properties: {monocle.epd.waveformMode=4}
>> FINE: Frame buffer geometry: 800 600 800 640 32
>> FINE: Frame buffer rgba: 8/16,8/8,8/0,8/24
>> FINE: Frame buffer grayscale: 0
>> FINE: Mapping frame buffer: 1,920,000 bytes
>> Frame rate: 80 frames in 11.93 s =  6.70 fps (149 ms/frame)
>> Frame rate: 80 frames in  9.97 s =  8.03 fps (125 ms/frame)
>> Frame rate: 80 frames in  9.96 s =  8.03 fps (125 ms/frame)
>> 
>> You can just add a new commit to this pull request branch. (I think that's 
>> what you meant, but just in case.) The commits get *squashed* into a single 
>> commit when they are integrated into the target branch.
> 
> cool thanks, apologies i meant commit. :)

system property has now been changed to use platform logger as advised. has 
been tested successfully on my imx6 board.

PR: https://git.openjdk.java.net/jfx/pull/5

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