This may be relevant, though it does talk about issues with pref panes as well.
http://mjtsai.com/blog/2016/03/31/gatekeeper-bug-in-mac-os-x-10-11-4/
> On 7 Apr 2016, at 15:13, Trygve Inda wrote:
>
> My app is built on 10.11.3. It is a prefPane with one command line
I can imagine the possibility when the window is in the background with no part
of the window visible that if the system is under memory pressure (System or
GPU) that the backing store might be discarded which would then invalidate your
CIContext.
You could save the pointer to the CGContext at
I believe the CoreText attributes should work.
The attribute key of kCTFontTraitsAttribute with a value of TraitCondensed
might do the trick.
Kevin
> On 8 Oct 2015, at 00:01, David Hoerl wrote:
>
> I'd like to do is get a condensed - or better yet - a bold (semi-bold)
>
I can't help but think that there should be a way to use xpc services as a nice
solution to this problem.
Unfortunately xpc services are mostly designed around the idea that if the
service dies the app can restart it when it needs. Whereas you need the service
running your experiment and
I’ve annotated the public methods of the API of a framework and though I
haven’t yet I will annotate internal methods and functions as well.
I found a small number of issues where my thinking had not been clear, and that
having to stop and consider what was intended when annotating the public
/2013/07/cocoa-interprocess-communication-with-xpc/
http://blog.yvs.eu.com/2013/07/cocoa-interprocess-communication-with-xpc/
But I think you will still get value from watching the video.
Kevin
Kevin Meaney
Zukini Ltd
Sheffield S2 3LN
Company no: 9491832
On 18 Jul 2015, at 15:26, SevenBits
I don’t know what the executable_path is for a screensaver, you’d think it
was very much the same thing. So first simplest option is to work out what
that is and then just put the library at the place it expects to be,
@executable_path/../Frameworks/lots of garbage. As long as that’s
You need to set the Runpath Search paths in your ScreensaverNinja target to
@loader_path/../Frameworks not the target Saver which I’m assuming is building
your framework.
I’m assuming here your ScreenSaver is built from the ScreensaverNinja target
(the one with the application icon).
Kevin
Ah, the clarification helps.
Does that mean the framework you are loading is none of the targets you are
listing? and that it is built in a different project?
Then you have set Runpath Search paths to @loader... in the correct target
(Saver) but you need to remove setting Installation
/archive/master.zip
https://github.com/PaddleHQ/Mac-Framework/archive/master.zip
On Fri, Jul 3, 2015 at 5:23 AM, Kevin Meaney k...@yvs.eu.com
mailto:k...@yvs.eu.com wrote:
___
Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)
Please do not post
that break the other apps using it?
On Fri, Jul 3, 2015 at 5:36 AM, Kevin Meaney k...@yvs.eu.com
mailto:k...@yvs.eu.com wrote:
Ah, You might need to talk to the makers of the framework then.
Kevin
On 3 Jul 2015, at 09:27, Juanjo Conti jjco...@carouselapps.com
mailto:jjco...@carouselapps.com
I’m not sure either of those will work.
On 3 Jul 2015, at 10:07, Roland King r...@rols.org wrote:
There’s two other options
1) Use install_name_tool to change the name in the library to the one you
want. If it’s shorter, and it should be as the install name in that library
seems rather
:
Could you point me to that articles please?
On Fri, Jul 3, 2015 at 6:38 AM, Roland King r...@rols.org
mailto:r...@rols.org wrote:
On 3 Jul 2015, at 17:29, Kevin Meaney k...@yvs.eu.com
mailto:k...@yvs.eu.com wrote:
I’m not sure either of those will work.
On 3 Jul 2015, at 10:07
I had similar issues when wanting to load a framework. My specific problem was
loading the framework in an application that was then being loaded when I was
using IBDesignable.
This article by Mike Ash was extremely helpful at understanding what was
happening.
Also the nifty new defer statement works well along with multiple guards if you
need to do any cleanup when exiting the scope. The combination is great.
Kevin
On 29 Jun 2015, at 23:43, Rick Mann rm...@latencyzero.com wrote:
On Jun 29, 2015, at 15:35 , Jens Alfke j...@mooseyard.com wrote:
You crop it using the CICrop filter.
On 19 Jun 2015, at 22:56, Carl Hoefs newsli...@autonomy.caltech.edu wrote:
I'm using CoreImage in a Cocoa app and I’m trying to obtain the outputImage
(CIImage) of a CICircleSplashDistortion CIFilter. I know that there are
certain filters whose output
The other major problem I ran into — unrelated, but I’m mentioning it in case
someone wants to jump in and tell me the easy way — is that I’m trying to use
frameworks in order to break the project into modules so that I can use the
access controls (private and internal) to keep
Hi Seth,
Thanks for this. It is a great resource. I just tried to embed a link to a
search for all the CoreVideo error codes into a tweet, but twitter doesn’t like
the tick mark as a character in a url. Can you change that?
Kevin
On 31 May 2015, at 05:46, Michael David Crawford
I am using this in in swift code that then calls into objective-c. I could not
get it to work at first but that was because the drawing code was in a
objective-c framework where the framework was being loaded with a run path
search path that was relative to the application. I had to modify the
On 12 May 2015, at 08:33, Roland King r...@rols.org wrote:
On 12 May 2015, at 14:43, Graham Cox graham@bigpond.com wrote:
I’m exploring the use of the new IB_DESIGNABLE macro to preview a custom
view live in IB.
It keeps complaining that my view is taking too long to draw, over
I have recently done something similar for an angular slider. Like Graham the
control responds to the scroll wheel. But as well I allow changing of the value
by holding down the command key when moving the mouse.
Tracking a circular path is much easier if you are not at the same time holding
Sent from my iPad
On 21 Mar 2015, at 23:41, Jens Alfke j...@mooseyard.com wrote:
On Mar 21, 2015, at 2:13 PM, Quincey Morris
quinceymor...@rivergatesoftware.com wrote:
Well, “String” is not “NSString”.
Sure, but it’s bridged with NSString. The “Using Swift With Cocoa” book says:
On 6 Mar 2015, at 11:34, Dave d...@looktowindward.com wrote:
Hi,
I think you might need to provide some more info about your architecture and
I also think you need to ask your questions in the xpc devforums list:
https://devforums.apple.com/community/mac/coreos/xpc
On 5 Mar 2015, at 19:29, Dave d...@looktowindward.com wrote:
Hi,
I’m really confused as it what type of a Application I need to create, from
reading the Daemons and Services Programming Guide, it lists:
Login Item.
XPC Service.
Launch Daemon.
Lauch Agent.
On the face of it, a
On 3 Mar 2015, at 16:56, Kyle Sluder k...@ksluder.com wrote:
On Tue, Mar 3, 2015, at 05:50 AM, Dave wrote:
I have the high level flow worked out now, but I’m not sure of what to
use in order to Send Events between my Applications and whether I need to
have one App (e.g. the Background App or
Apologies. Having just reread that forum post rather than working from what I
remembered it is about the relationship between the processes rather than
process names.
You might still we'll be in luck.
Kevin
Sent from my iPad
On 13 Feb 2015, at 21:05, Andrew Keller and...@kellerfarm.com
The answer to this question on devforums suggests you might be out of luck.
https://devforums.apple.com/message/1092608#1092608
Sent from my iPad
On 13 Feb 2015, at 21:05, Andrew Keller and...@kellerfarm.com wrote:
Hello all,
I’m not sure if this is the correct list, but I figure I’ll
What are you using for memory management then? Manual, GC?
Sent from my iPad
On 25 Jan 2015, at 22:57, Trygve Inda cocoa...@xericdesign.com wrote:
On Jan 25, 2015, at 12:33 , Trygve Inda cocoa...@xericdesign.com wrote:
It does seem like if I remove a call to
NSData* imageData = [[self
On 19 Jan 2015, at 17:53, Quincey Morris quinceymor...@rivergatesoftware.com
wrote:
On Jan 19, 2015, at 04:02 , Kevin Meaney k...@yvs.eu.com wrote:
What I'd like to be able to do is to compare profiles obtained this way with
what I think must be AVFoundation's equivalent e.g
that led me to
the Wikipedia pages.
Kevin
Sent from my iPad
On 19 Jan 2015, at 17:53, Quincey Morris
quinceymor...@rivergatesoftware.com wrote:
On Jan 19, 2015, at 04:02 , Kevin Meaney k...@yvs.eu.com wrote:
What I'd like to be able to do is to compare profiles obtained this way with
what
And what I wrote is here:
https://github.com/SheffieldKevin/attributesforpreset/blob/master/attributesforpreset/output.txt
Sent from my iPad
On 20 Jan 2015, at 01:39, Kevin Meaney k...@yvs.eu.com wrote:
Forgot to mention. I wrote a little something a few days ago that iterates
through
individual frames? It
would be ideal if I could keep everything using the same profile color space in
my processing pipeline.
Kevin
On 19 Jan 2015, at 01:56, Quincey Morris quinceymor...@rivergatesoftware.com
wrote:
On Jan 18, 2015, at 17:22 , Kevin Meaney k...@yvs.eu.com wrote:
How can I
I would like to have a CVPixelBuffer function that returns the color profile of
a CVPixelBuffer. I'm using the CVPixelBuffer data as a backing store when I
create a CGBitmapContext and I would like to provide the appropriate color
profile when I create the CGBitmapContext. The CVPixelBuffer is
leaks, not bugs.
Kevin
On 13 Jan 2015, at 10:21, Kevin Meaney k...@yvs.eu.com wrote:
On 13 Jan 2015, at 02:51, Graham Cox graham@bigpond.com wrote:
On 13 Jan 2015, at 12:21 pm, Roland King r...@rols.org wrote:
Did you read the devforums thread I pointed you at a couple of weeks ago
On 13 Jan 2015, at 02:51, Graham Cox graham@bigpond.com wrote:
On 13 Jan 2015, at 12:21 pm, Roland King r...@rols.org wrote:
Did you read the devforums thread I pointed you at a couple of weeks ago?
Umm, not sure Roland. I read the blog post by bbum about using Allocations,
which
I'm not certain if this is useful to you but Bob McCune on Twitter mentioned a
new tech note about new avfoundation apis which specifically mentions reference
movies.
https://developer.apple.com/library/mac/technotes/tn2404/_index.html#//apple_ref/doc/uid/DTS40015060
I'd also recommend his
I've got the following code snippet which is part of code that creates a
CGImage. The CGImage is created but the last line of this code snippet triggers
the output of an error message to the console. The self._movieAsset is an
AVURLAsset created from a local file on disk. I've tried some
PM, Kevin Meaney k...@yvs.eu.com wrote:
Your not creating a static C++ object anywhere are you? One that creates the
dictionary before main gets called by any chance?
Kevin
Sent from my iPhone
On 22 Oct 2014, at 22:45, Beinan Li li.bei...@gmail.com wrote:
Note, the initial crashing
On Thu, Oct 23, 2014 at 5:18 AM, Kevin Meaney k...@yvs.eu.com wrote:
On 23 Oct 2014, at 00:34, Beinan Li li.bei...@gmail.com wrote:
Oh! I did actually.
The method I posted belongs to an ObjC object which is wrapped by a C++
object.
That C++ object is a singleton (static).
How
Your not creating a static C++ object anywhere are you? One that creates the
dictionary before main gets called by any chance?
Kevin
Sent from my iPhone
On 22 Oct 2014, at 22:45, Beinan Li li.bei...@gmail.com wrote:
Note, the initial crashing function is merely translating a C++ enum to
I think my other reply will make this a moot point, but since [NSBundle
bundleForClass:] takes a Class, and you know what your class is, just pass
it that, you don't have to reference self.
[NSBundle bundleForClass:[MyGroovySubclass class]];
Sorry, I was conflating Obj-C and Swift
Hi Roland,
Thanks for the followup. I've created a proper git rep on github rather than
just a gist. Most of my github reps seem to be this kind of mini demonstration
project and I was trying to avoid yet another one.
https://github.com/SheffieldKevin/swift-objectivec
What version of Xcode
Oct 2014, at 18:18, Kevin Meaney k...@yvs.eu.com wrote:
Hi Roland,
Thanks for the followup. I've created a proper git rep on github rather than
just a gist. Most of my github reps seem to be this kind of mini
demonstration project and I was trying to avoid yet another one.
https
Thanks Roland.
On 17 Oct 2014, at 00:20, Roland King r...@rols.org wrote:
On 17 Oct 2014, at 6:13 am, Kevin Meaney k...@yvs.eu.com wrote:
Hi,
I'm beginning to feel this above my pay grade as I can't seem to work it out.
I have a framework in Objective-C. I've been writing some tests
Hi Howard,
I tried to capture some of my interpretation of apple's documentation about ARC
into a blog post which you might find useful. Note also the links to 2 other
blog posts which I would recommend.
http://blog.yvs.eu.com/2013/04/learning-arc/
I did a followup blog post, but it is mostly
On 10 Oct 2014, at 16:27, Jim Crate j...@quevivadev.net wrote:
On Oct 10, 2014, at 11:00 AM, Kyle Sluder k...@ksluder.com wrote:
On Oct 10, 2014, at 6:42 AM, Steve Mills sjmi...@mac.com wrote:
I've only created one NSOperationQueue and added many NSInvocationOperation
to it.
On 10 Oct 2014, at 17:40, Scott Ribe scott_r...@elevated-dev.com wrote:
On Oct 10, 2014, at 10:20 AM, Kevin Meaney k...@yvs.eu.com wrote:
Now I've been optimizing to maximize throughput for processing image files...
Things depend VERY much on what exactly you're doing. I've optimized
This is more of an objective-c question than Cocoa, but I'm getting no traction
on the objective-c devforums discussion list.
I've got a OSX Framework that I'm updating to to also work on iOS.
In the Framework I take advantage of the name property added to the CIFilter
class by the category
and a filter attribute. This
way I get the behaviour I need and it works for both iOS and OS X. Nothing
clever about it but it's nice having a common solution for both.
Kevin
On 7 Oct 2014, at 16:00, Jens Alfke j...@mooseyard.com wrote:
On Oct 7, 2014, at 1:09 AM, Kevin Meaney k...@yvs.eu.com wrote
I think you might need objc_getMetaClass.
See https://github.com/nst/RuntimeBrowser/blob/master/model/ClassDisplay.m
For how it is used.
Kevin
On 26 Aug 2014, at 15:06, Alex Zavatone z...@mac.com wrote:
I've been using the obj runtime to dump class methods, protocols, Ivars and
properties
You’re not supposed to start it - launchd/XPC services is supposed to start
it for you. You’re supposed to register it as a LaunchAgent/Daemon, creating
the launchd.plist file and when you need the service, it starts and when you
don’t, it’s stopped again. I keep reading this is all part
When you say app-friend, what do you mean? Another application? An XPC service?
Some other kind of service?
If your App is sandboxed and the service is not an xpc service embedded in your
application then I think your pretty much out of luck.
Kevin
On 4 Aug 2014, at 07:54, Gerriet M. Denkmann
On 4 Aug 2014, at 22:49, Kyle Sluder k...@ksluder.com wrote:
On Mon, Aug 4, 2014, at 04:17 PM, Uli Kusterer wrote:
Well, what other communication mechanisms are there for talking between
sandboxed apps ... ? I *did* call it a last-ditch thing.
XPC and Apple Events (as long as your sdef
Actually just window shots.
I feel like I've been fighting with the screen shot code, and that it shouldn't
be this difficult. I get past one problem only to find another. My most recent
seems intractable.
If drawing to the window happens when the window is not completely on screen
and if you
Not really.
Can you show some code?
dictArray = CGWindowListCopyWindowInfo(kCGWindowListOptionIncludingWindow,
(CGWindowID)[self._window
windowNumber]);
if (dictArray (CFArrayGetCount(dictArray) 0))
windowDict =
Apologies,
The e-mail with the code went out before I was finished editing.
The code shown is that taking the screen capture. But what is captured is not
what I see in the window.
Kevin
On 18 Jun 2014, at 16:24, Kevin Meaney k...@yvs.eu.com wrote:
Not really.
Can you show some code
.
4. Take a snapshot of the window.
5. Save the snapshot to an image file.
6. Note that the snapshot is missing the part of the drawing that was drawn
offscreen, but was visible after step 3.
Kevin
On 18 Jun 2014, at 16:30, Kyle Sluder k...@ksluder.com wrote:
On Jun 18, 2014, at 8:24 AM, Kevin
On Jun 18, 2014, at 8:36 AM, Kevin Meaney k...@yvs.eu.com wrote:
The sequence of events are:
1. Drag window so that it is partially offscreen.
2. Draw into the window where part of the drawing happens in the part of the
window that is offscreen.
Ok, what does this mean? In AppKit, you
SonOfGrab displays in the composited image window the correct image after
following the same steps.
Kevin
On 18 Jun 2014, at 17:01, Kevin Meaney k...@yvs.eu.com wrote:
On Jun 18, 2014, at 8:36 AM, Kevin Meaney k...@yvs.eu.com wrote:
The sequence of events are:
1. Drag window so
This is NOT OK:
- (void)handleIncomingDrawCommand:(id)drawCommand {
CGContextRef cgContext = [[NSGraphicsContext currentContext]
graphicsPort];
ImmediatelyPerformDrawCommand(drawCommand, cgContext); // NO!
}
Bugger, that is exactly what I'm doing.
Basically the tool is intended for
of draw rect within a view hierarchy may not apply. Are there other
issues that will hurt me when drawing directly?
Kevin
On 18 Jun 2014, at 17:47, Kyle Sluder k...@ksluder.com wrote:
On Wed, Jun 18, 2014, at 09:01 AM, Kevin Meaney wrote:
Drawing happens when I receive an xpc message containing
I think an applescript droplet, using the on open call which then calls do
shell script with the path to your command and the file that is dropped on it.
Kevin
On 18 May 2014, at 00:14, Bob Sabiston fl...@media.mit.edu wrote:
Hello,
I have a little console app written in C, one which
Hi Costas,
I'd be interested in hearing the results of you following up NSXPCConnection.
When I read through the documentation about a year ago, it is focussed around
providing a xpcservice which is a bundled executable within an application, and
the application communicates with it using
On 21 Apr 2014, at 21:09, Andy Lee ag...@mac.com wrote:
The solution is to use a weak reference for one of the properties in the
cycle. In general, if one object conceptually owns the other, then the
owning object uses a weak reference and the owned object uses a strong
one. For
I have received the same e-mail also with a IP starting with 17.
Kevin
On 16 Apr 2014, at 05:25, Kyle Sluder k...@ksluder.com wrote:
On Tue, Apr 15, 2014, at 09:19 PM, Bryan Vines wrote:
Hi folks.
So I just got a “Mailing list removal confirmation notice” which said the
list had received
I thought the behaviour was different between iOS and MacOS. On iOS nonatomic
was the default and atomic on OS X.
Kevin
Sent from my iPhone
On 7 Apr 2014, at 05:28, Graham Cox graham@bigpond.com wrote:
On 7 Apr 2014, at 1:58 pm, Ben Kennedy b...@zygoat.ca wrote:
t is for these two
Thanks for your input again.
On 31 Mar 2014, at 05:38, Graham Cox graham@bigpond.com wrote:
OK, I dug out the source code - it's a very old piece of work from when Core
Image filters were first available. I'm definitely using Curl without a
shadow.
But, digging into the code,here's
I think this problem might go beyond Core Animation, unless NSAnimation is
using CoreAnimation under the hood.
Apple's sample code Image Transition and Cocoa Slides both crash when built
using Xcode 5.1 and run on 10.9.2. But built apps that apple provides with the
sample code still work on
Your comments have been really helpful. I've done two things to get everything
to work:
Firstly, I turned my triangle upside down, and I set alpha for black at 0.7 and
for white 0.3.
Now it is clear that everything works as it should.
Many Thanks.
Kevin
On 31 Mar 2014, at 20:43, Bill Monk
No matter how many different ways I look at my code I can't see what I'm doing
wrong. So now I've distilled down to its essence the using of the
CIPageCurlTransition CoreImage filter. The problem is that the
inputBacksideImage value option for the CIPageCurlTransition filter doesn't
appear to
it
won't work?
--Graham
On 31 Mar 2014, at 1:54 am, Kevin Meaney k...@yvs.eu.com wrote:
No matter how many different ways I look at my code I can't see what I'm
doing wrong. So now I've distilled down to its essence the using of the
CIPageCurlTransition CoreImage filter. The problem
Hi,
I've setup a project for working with the CoreImage transition filters and I've
been going through making sure they work, and apart from the last 2 they work.
I can't get the backside image to appear on the back of the page being turned
over for the (CIPageCurlTransition,
Apologies,
I've just tried this using the CIPageCurlWithShadowTransition filter and it
works. It is just the non shadow one that doesn't work.
Kevin
On 28 Mar 2014, at 21:59, Kevin Meaney k...@yvs.eu.com wrote:
Hi,
I've setup a project for working with the CoreImage transition filters
If AppKit is using CoreGraphics for reading/writing GIF files then you might
have hit the same issue I did.
http://blog.yvs.eu.com/2013/10/creating-gif-animations-using-coreimagequartz/
Kevin
On 25 Mar 2014, at 16:10, Andreas Mayer andr...@harmless.de wrote:
Am 25.03.2014 um 16:58 schrieb
I've experimented with trying to get the best performance I can with various
different approaches by building a command line tool that creates a cover sheet
of frame grabs from a movie file. I've blogged about my attempts here:
I read somewhere that this change was part of Mavericks. I can't track that
reference down right now, but I don't think Apple would consider it an error.
Kevin
On 23 Mar 2014, at 18:14, Leonardo mac.iphone@gmail.com wrote:
I create a jpg RGB image with Photoshop without any icc profile.
I'm doing:
myQueue = dispatch_queue_create(myque, DISPATCH_QUEUE_CONCURRENT);
dispatch_set_target_queue(myQueue,
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0));
When I hit a breakpoint in the debugger in when running in myQue I'm informed
that the queue myque is a serial queue.
I forgot to mention I'm building against the 10.9 SDK and targeting 10.9 as a
minimum.
Kevin
On 20 Mar 2014, at 20:05, Kevin Meaney k...@yvs.eu.com wrote:
I'm doing:
myQueue = dispatch_queue_create(myque, DISPATCH_QUEUE_CONCURRENT);
dispatch_set_target_queue(myQueue
On 18 Mar 2014, at 14:22, Jim Crate j...@quevivadev.net wrote:
I would start with something like this:
CIImage *img = [CIImage emptyImage];
for … {
// calculate tile position from index, create NSAffineTransform for
scaling/translating
CGImageRef tileRef = // get image from
The discussion for this AVAssetImageGenerator method mentions that this method
uses an efficient batch mode to get image in time order.
What I don't see any info on, is whether the completion handler is called on
the same queue as the one from which
On 8 Mar 2014, at 06:55, Trygve Inda cocoa...@xericdesign.com wrote:
On 8 Mar 2014, at 5:02 pm, Trygve Inda cocoa...@xericdesign.com wrote:
This is slower by about 15%. :(
Interestingly if I call:
CGContextSetInterpolationQuality ([context graphicsPort],
kCGInterpolationNone);
It
I'd try clipping before drawing the fill, rather than after.
Kevin
On 6 Mar 2014, at 16:34, Leonardo mac.iphone@gmail.com wrote:
Hi, I have an oval NSBezierPath path. I fill it with a blue color,
then I draw an image within the same path. And I can still see a blue tiny
border around the
First a note. The name property is declared as a CACIFilterAdditions in
CACIFilterAdditions.h.
I think you will need to draw the CIImage to your CIContext and then generate a
CGImage to capture its state for future reference and then generate a new
CIImage from the CGImage. I believe the
for drawing attention to specific areas.
On 2/27/14 9:42 AM, Kevin Meaney k...@yvs.eu.com wrote:
First a note. The name property is declared as a CACIFilterAdditions in
CACIFilterAdditions.h.
I think you will need to draw the CIImage to your CIContext and then
generate a CGImage
I've written a command line routine that compares two image files, in the hope
of determining if the two files are different. Basically the tool only compares
whether the dimensions are different or whether the pixel values are
sufficiently different. So the routine has a distance option which
This has fixed itself. I don't know how or why. But after installing 10.9.2 and
rebooting the tiff files with varying alpha values look the same as png files.
I don't think it was the update to 10.9.2 but I've got no proof, but instead I
think it is related to the fact that I've occasionally
I have something that works even thoug I
lose some dynamic range.
Kevin
On 26 Feb 2014, at 12:50, Kevin Meaney k...@yvs.eu.com wrote:
I've written a command line routine that compares two image files, in the
hope of determining if the two files are different. Basically the tool only
On 24 Feb 2014, at 18:59, Kevin Meaney k...@yvs.eu.com wrote:
On 24 Feb 2014, at 18:40, David Duncan david.dun...@apple.com wrote:
How are you generating these images? Specifically, the CGImageRef you pass
to CGImageDestination and the pixels backing it.
PNG does not store premultiplied
I've written a command line tool that takes an image file (when testing I'm
using JPEG files) and applies a custom CIFilter (a naive chroma key filter I've
written) and saves a file to disk. Sampling the command line tool when
processing files shows it is spending 90% of its time writing the
On 24 Feb 2014, at 17:21, Mike Abdullah mabdul...@karelia.com wrote:
On 24 Feb 2014, at 17:00, Kevin Meaney k...@yvs.eu.com wrote:
I've written a command line tool that takes an image file (when testing I'm
using JPEG files) and applies a custom CIFilter (a naive chroma key filter
I've
On 24 Feb 2014, at 18:08, Sandy McGuffog mcguff...@gmail.com wrote:
You should not be seeing worse image quality for TIFF unless very different
options are being used in each case. Can you tell what about the image
quality is worse?
That was my assumption which is why I was confused. As per
On 24 Feb 2014, at 18:04, Bill Dudney bdud...@mac.com wrote:
Make sure that what you are looking at is what you think you are looking at.
When you look at it in Preview is it being scaled? If so then the default
scaling algorithm in Preview for TIFF might be 'fast but ugly’ (I don’t know,
On 24 Feb 2014, at 18:40, David Duncan david.dun...@apple.com wrote:
On Feb 24, 2014, at 10:25 AM, Kevin Meaney k...@yvs.eu.com wrote:
I'd already done that, but doing it again made me realize that the problem
is 100% associated with the alpha channel. Where the pixels are fully opaque
From the comments I've seen iOS 7 is slower than iOS 6 which on my iPhone 4 is
already sluggish. I'm not sure I'm happy with the state of affairs Apple has
left me in.
Kevin
On 23 Feb 2014, at 19:27, Clark Smith Cox III clark@apple.com wrote:
On Feb 22, 2014, at 6:58 PM, Rick Mann
Apologies for the cross posting from quartz-dev. But it seems these days that
it is hard to work out which forum, lists/devforum and then which of the
discussions to then post.
I've been playing with creating a core image filter for OS X. I've got simple
chroma key filter working as I would
In the CoreImage Programming guide on the discussion about writing a custom
filter one of the steps described it to write a custom attributes method called
customAttributes. I used as a template of what I needed to do the
customAttributes method implemented in Apple's sample code for
Thanks to Marcel, John McCall, and Clark Smith Cox III for addressing the
question I was trying to ask, apologies to others that the question was unclear.
So it seems that because ARC provides compatibility between ARC and non-ARC
code unlike how garbage collection worked with duplicated
I've realized that my understanding of ARC is not as good as I thought it was.
So I'll be asking couple of questions.
With ARC I don't understand why autorelease pools are needed anymore except for
with objects passed by reference. What I mean by that is that class methods
like:
NSString
On 16 Feb 2014, at 17:06, Jens Alfke j...@mooseyard.com wrote:
On Feb 16, 2014, at 5:27 AM, Kevin Meaney k...@yvs.eu.com wrote:
Is the only reason for interoperability with manual retain-release code?
For backward compatibility. Nearly every piece of existing Cocoa code uses
The 2011 WWDC Blocks and Grand Central Dispatch in practice talks about cache
line size which I believe is relevant here.
You can read my notes from that session here:
http://blog.yvs.eu.com/2013/07/blocks-and-grand-central-dispatch-in-practice/
Kevin
On 9 Feb 2014, at 08:53, Greg Parker
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