[Mono-dev] Bitmap manipulation - am I doing it right?
Hello, I have an application that displays graphics, stored in a Bitmap. When you hover the concerned Panel, a square shows what tile you're currently highlighting. So if you move your cursor, the square moves too. What I'm doing is, each time I repaint my Panel, clone the Bitmap then draw the rectangle (square) on it. If I didn't clone it first and worked directly with the original Bitmap, then the squares would never go away, and keep on multiplying as you move your cursor over the Panel. So I'm just wondering: is cloning the right thing to do here? Or is there a better / more efficient way to achieve the same results, like some kind of temporary modifications to a Bitmap or whatever? (I'm using double buffering, so everything has to be on the same Bitmap) I already implemented clipping to improve performances, but I wanted to know if there was anything else I could do... Thanks. -- View this message in context: http://www.nabble.com/Bitmap-manipulation---am-I-doing-it-right--tp22800298p22800298.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Problem using Mono under Apache:
thank you Robert I'm waiting this new version with open arms. I wish it will solve my problem. In the meantime is there anyone else that can give me some suggest? ty Robert Jordan wrote: feffus wrote: The problem is the following: When the site receives more than 50 simultaneous connections, it becomes unreachable even thought Apache seems to work. Do anyone know why? tnx I attach: - Apache server status when the service falls down - Apache configuration file Try to lower these settings: MonoMaxActiveRequests MonoMaxWaitingRequests Note that raising them like you did won't help at all, because they were introduced intentionally to *limit* the requests to an amount that can be safely processed by an application. Robert ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list -- View this message in context: http://www.nabble.com/Problem-using-Mono-under-Apache%3A-tp22725279p22800859.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Embedded: storing extra data on objects?
David Mitchell wrote: When embedding mono, is there a way to store a little bit of extra information (pointer-sized) along with a MonoObject (or similar structure)? My scenario is that I have unmanaged wrappers for managed objects, and I¹d like to ensure that there is never more than one unmanaged wrapper per object (and also be able to get the unmanaged wrapper if all I have is the object). I¹m sure I know that I could use a hash table for this, and that may end up being what I do, but actually storing the pointer on the MonoObject seems more natural, in my case. I wonder why your wrapper must have 1:1 relationship with the object it wraps. Supposing you really need this 1:1 relationship, how do you handle the liveness of the wrapper? If there is only one pointer to its instance, it will go away together with the MonoObject when the latter gets garbage collected, so you won't be able to free it. Robert ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Bitmap manipulation - am I doing it right?
What you are doing is very inefficient. Two ideas: 1) Don't directly draw onto the image if you are only want so show something to the user and not really want to manipulate the image. You could easily use a rectangle control and show that above the image control. 2) Before you paint the rectangle copy the overpainted area into a temporary image. Then draw the rectangle. To (re)move the rectangle copy the data back from the temporary image (do not copy the entire image or create a new one) Andreas -Ursprüngliche Nachricht- Von: mono-devel-list-boun...@lists.ximian.com [mailto:mono-devel-list-boun...@lists.ximian.com] Im Auftrag von Stifu Gesendet: Dienstag, 31. März 2009 10:10 An: mono-devel-list@lists.ximian.com Betreff: [Mono-dev] Bitmap manipulation - am I doing it right? Hello, I have an application that displays graphics, stored in a Bitmap. When you hover the concerned Panel, a square shows what tile you're currently highlighting. So if you move your cursor, the square moves too. What I'm doing is, each time I repaint my Panel, clone the Bitmap then draw the rectangle (square) on it. If I didn't clone it first and worked directly with the original Bitmap, then the squares would never go away, and keep on multiplying as you move your cursor over the Panel. So I'm just wondering: is cloning the right thing to do here? Or is there a better / more efficient way to achieve the same results, like some kind of temporary modifications to a Bitmap or whatever? (I'm using double buffering, so everything has to be on the same Bitmap) I already implemented clipping to improve performances, but I wanted to know if there was anything else I could do... Thanks. -- View this message in context: http://www.nabble.com/Bitmap-manipulation---am-I-doing-it-right--tp22800298p 22800298.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Bitmap manipulation - am I doing it right?
Hi Andreas, Thanks for your reply. The size and the color of the rectangle can vary, and it can also be semi-transparent, so I'm not sure making it a control is possible. Your second idea is interesting, though, I'll have to try it. By the way, I also wanted to clone because I show a small part of a big image (and you can scroll through the Panel to show the other parts), and didn't want to draw anything too big on my Panel (too big as in, bigger than the Panel size, so out of bounds). So I actually have 2 Bitmaps in memory: the whole image, and the partial (on-screen) image, and so I simply clone the latter each time and update it when necessary (ie: when you scroll or resize the window). Your solution would be helpful when hovering the image to draw the rectangle (which was fast already), but not when scrolling through the Panel (the slowest part)... Not sure if I can do anything to make scrolling faster. Andreas Nahr wrote: What you are doing is very inefficient. Two ideas: 1) Don't directly draw onto the image if you are only want so show something to the user and not really want to manipulate the image. You could easily use a rectangle control and show that above the image control. 2) Before you paint the rectangle copy the overpainted area into a temporary image. Then draw the rectangle. To (re)move the rectangle copy the data back from the temporary image (do not copy the entire image or create a new one) Andreas -Ursprüngliche Nachricht- Von: mono-devel-list-boun...@lists.ximian.com [mailto:mono-devel-list-boun...@lists.ximian.com] Im Auftrag von Stifu Gesendet: Dienstag, 31. März 2009 10:10 An: mono-devel-list@lists.ximian.com Betreff: [Mono-dev] Bitmap manipulation - am I doing it right? Hello, I have an application that displays graphics, stored in a Bitmap. When you hover the concerned Panel, a square shows what tile you're currently highlighting. So if you move your cursor, the square moves too. What I'm doing is, each time I repaint my Panel, clone the Bitmap then draw the rectangle (square) on it. If I didn't clone it first and worked directly with the original Bitmap, then the squares would never go away, and keep on multiplying as you move your cursor over the Panel. So I'm just wondering: is cloning the right thing to do here? Or is there a better / more efficient way to achieve the same results, like some kind of temporary modifications to a Bitmap or whatever? (I'm using double buffering, so everything has to be on the same Bitmap) I already implemented clipping to improve performances, but I wanted to know if there was anything else I could do... Thanks. -- View this message in context: http://www.nabble.com/Bitmap-manipulation---am-I-doing-it-right--tp22800298p 22800298.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list -- View this message in context: http://www.nabble.com/Bitmap-manipulation---am-I-doing-it-right--tp22800298p22804927.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Announcing the release of Mono 2.4...
Today we're announcing the immediate release of Mono 2.4. The release notes are here: http://www.mono-project.com/Release_Notes_Mono_2.4 and downloads are available here: http://www.mono-project.com/Downloads Thanks to all those who contributed to this release! :) Thomas ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] [Mono-debugger] Introducint ourselves
Dear Mono Developers, I guess I will start bothering you with quite a few questions. We were asked from unity3d to port the mono debugger to Windows. We are at the beginning of this work, but Jonathan Chambers seem to have started on this undertaking. Mr Ante form Unity3d was very clear about this development and that it all has to go through this mailing list. So I hope that some of you will bear with us and help us getting this port done. With best regards Friedrich -- Q-Software Solutions GmbH; Sitz: Bruchsal; Registergericht: Mannheim Registriernummer: HRB232138; Geschaeftsfuehrer: Friedrich Dominicus ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Embedded: storing extra data on objects?
Robert Jordan wrote: David Mitchell wrote: When embedding mono, is there a way to store a little bit of extra information (pointer-sized) along with a MonoObject (or similar structure)? My scenario is that I have unmanaged wrappers for managed objects, and I¹d like to ensure that there is never more than one unmanaged wrapper per object (and also be able to get the unmanaged wrapper if all I have is the object). I¹m sure I know that I could use a hash table for this, and that may end up being what I do, but actually storing the pointer on the MonoObject seems more natural, in my case. I wonder why your wrapper must have 1:1 relationship with the object it wraps. I'm working on a bridging scenario between Objective C and Mono that is not addressed by existing solutions. Supposing you really need this 1:1 relationship, how do you handle the liveness of the wrapper? If there is only one pointer to its instance, it will go away together with the MonoObject when the latter gets garbage collected, so you won't be able to free it. The wrapper has an unpinned gchandle to the object, so the MonoObject won't be garbage collected until I release the wrapper--whose lifetime is handled by Objective C code. Robert ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list -- View this message in context: http://www.nabble.com/Embedded%3A-storing-extra-data-on-objects--tp22787556p22805218.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Bitmap manipulation - am I doing it right?
Thanks for your answer. 1) I'm not sure how that would work... Not saying it's not possible or anything, I just have no idea. By the way, the size and the color of the rectangle can vary, and it can also be semi-transparent (in case that's a problem). 2) How would you do this, technically? Because the only solution that comes to my mind is to clone a little part of my Bitmap to create the temporary copy... and making a sub-sized clone of a Bitmap is actually much slower than making a full clone. So it'd be actually slower than my current implementation. Andreas Nahr wrote: What you are doing is very inefficient. Two ideas: 1) Don't directly draw onto the image if you are only want so show something to the user and not really want to manipulate the image. You could easily use a rectangle control and show that above the image control. 2) Before you paint the rectangle copy the overpainted area into a temporary image. Then draw the rectangle. To (re)move the rectangle copy the data back from the temporary image (do not copy the entire image or create a new one) Andreas -Ursprüngliche Nachricht- Von: mono-devel-list-boun...@lists.ximian.com [mailto:mono-devel-list-boun...@lists.ximian.com] Im Auftrag von Stifu Gesendet: Dienstag, 31. März 2009 10:10 An: mono-devel-list@lists.ximian.com Betreff: [Mono-dev] Bitmap manipulation - am I doing it right? Hello, I have an application that displays graphics, stored in a Bitmap. When you hover the concerned Panel, a square shows what tile you're currently highlighting. So if you move your cursor, the square moves too. What I'm doing is, each time I repaint my Panel, clone the Bitmap then draw the rectangle (square) on it. If I didn't clone it first and worked directly with the original Bitmap, then the squares would never go away, and keep on multiplying as you move your cursor over the Panel. So I'm just wondering: is cloning the right thing to do here? Or is there a better / more efficient way to achieve the same results, like some kind of temporary modifications to a Bitmap or whatever? (I'm using double buffering, so everything has to be on the same Bitmap) I already implemented clipping to improve performances, but I wanted to know if there was anything else I could do... Thanks. -- View this message in context: http://www.nabble.com/Bitmap-manipulation---am-I-doing-it-right--tp22800298p 22800298.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list -- View this message in context: http://www.nabble.com/Bitmap-manipulation---am-I-doing-it-right--tp22800298p22813327.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Bitmap manipulation - am I doing it right?
Does GDI+ support alpha blending? If so, why don't you just draw a translucent (say alpha = 128) layer on top of the selected region? You could also fake this with additive or multiplicative blending, but the result will look worse. Την Wed, 01 Apr 2009 00:11:37 +0300,ο(η) Stifu st...@free.fr έγραψε: Thanks for your answer. 1) I'm not sure how that would work... Not saying it's not possible or anything, I just have no idea. By the way, the size and the color of the rectangle can vary, and it can also be semi-transparent (in case that's a problem). 2) How would you do this, technically? Because the only solution that comes to my mind is to clone a little part of my Bitmap to create the temporary copy... and making a sub-sized clone of a Bitmap is actually much slower than making a full clone. So it'd be actually slower than my current implementation. Andreas Nahr wrote: What you are doing is very inefficient. Two ideas: 1) Don't directly draw onto the image if you are only want so show something to the user and not really want to manipulate the image. You could easily use a rectangle control and show that above the image control. 2) Before you paint the rectangle copy the overpainted area into a temporary image. Then draw the rectangle. To (re)move the rectangle copy the data back from the temporary image (do not copy the entire image or create a new one) Andreas -Ursprüngliche Nachricht- Von: mono-devel-list-boun...@lists.ximian.com [mailto:mono-devel-list-boun...@lists.ximian.com] Im Auftrag von Stifu Gesendet: Dienstag, 31. März 2009 10:10 An: mono-devel-list@lists.ximian.com Betreff: [Mono-dev] Bitmap manipulation - am I doing it right? Hello, I have an application that displays graphics, stored in a Bitmap. When you hover the concerned Panel, a square shows what tile you're currently highlighting. So if you move your cursor, the square moves too. What I'm doing is, each time I repaint my Panel, clone the Bitmap then draw the rectangle (square) on it. If I didn't clone it first and worked directly with the original Bitmap, then the squares would never go away, and keep on multiplying as you move your cursor over the Panel. So I'm just wondering: is cloning the right thing to do here? Or is there a better / more efficient way to achieve the same results, like some kind of temporary modifications to a Bitmap or whatever? (I'm using double buffering, so everything has to be on the same Bitmap) I already implemented clipping to improve performances, but I wanted to know if there was anything else I could do... Thanks. -- View this message in context: http://www.nabble.com/Bitmap-manipulation---am-I-doing-it-right--tp22800298p 22800298.html Sent from the Mono - Dev mailing list archive at Nabble.com. ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list -- Χρησιμοποιώ το επαναστατικό πρόγραμμα αλληλογραφίας της Opera: http://www.opera.com/mail/ ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Assertion failure on exit -- NUnit
On Mar 28, 2009, at 7:32 PM, Zoltan Varga wrote: Hi, This should now be fixed in SVN HEAD and the 2.4 branch. Was this included in the 2.4 tarball? Zoltan On Wed, Mar 25, 2009 at 9:57 PM, Casey Marshall casey.s.marsh...@gmail.com wrote: I'm getting an intermittent assertion failure on mono 2.4 RC3, x86_64 Ubuntu 8.04, when running NUnit 2.4.7 on an assembly that doesn't have any unit tests defined in it. It seems like it has something to do with what is happening when the program is shutting down. Naturally, since it's part of our unit test infrastructure, having mono exit with SIGABRT occasionally is noise we'd rather not have. Is this a known issue? Should I file a bug? I also noticed that Mono would fail with an assertion error in SetLastError when the program was exiting. Here's part of the output: ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Assertion failure on exit -- NUnit
No, it will be in 2.4.1. Zoltan On Tue, Mar 31, 2009 at 11:58 PM, Casey Marshall casey.s.marsh...@gmail.com wrote: On Mar 28, 2009, at 7:32 PM, Zoltan Varga wrote: Hi, This should now be fixed in SVN HEAD and the 2.4 branch. Was this included in the 2.4 tarball? Zoltan On Wed, Mar 25, 2009 at 9:57 PM, Casey Marshall casey.s.marsh...@gmail.com wrote: I'm getting an intermittent assertion failure on mono 2.4 RC3, x86_64 Ubuntu 8.04, when running NUnit 2.4.7 on an assembly that doesn't have any unit tests defined in it. It seems like it has something to do with what is happening when the program is shutting down. Naturally, since it's part of our unit test infrastructure, having mono exit with SIGABRT occasionally is noise we'd rather not have. Is this a known issue? Should I file a bug? I also noticed that Mono would fail with an assertion error in SetLastError when the program was exiting. Here's part of the output: ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Cloud Based Solution
Hello Everyone, I want to know, whether we have already or in future have plans of implementing windows azure services( cloud based platform) as part of Mono. I developed an application with Azure( based on .net 3.5 sp1). It ran without any issues with MOMA. But when I tried it with Mono develop, it says the application is not supported. So I assume we have not developed the apis. So I thought, it would help the mono and suse community immensely if I try implementing the APIs with regard to the azure services. The azure runtime environment seems similar to ASP.net( with the xml config files). It would be very helpful, if you could let me know whether this is a viable project to start working on and please let me know where I can start( probably some pointers from people who have implemented asp.net kind of func in to Mono) Thanks for helping me out. -Keerthi ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Generics problem (issue #488960)
Can someone please comment on bug #488960 Invalid CS0663 error with
generics ('overloaded function cannot differ on use of parameter modifiers
only')? Direct link: https://bugzilla.novell.com/show_bug.cgi?id=488960
Is this a difficult case? is it possible to squeeze a quick fix into 2.4.1
(if such a release is planned)?
I hate sounding pushy, but this bug is blocking OpenTK. Fortunately, we
can release binaries compiled on Windows. Unfortunately, this bug is
affecting both development (as the main platform is Mono/Linux) and usage
(because users will have to use Windows if they wish to recompile the
library).
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[Mono-dev] building gtk-sharp requires glib2-devel 2.18
I can't find glib2-devel 2.18 in any openSuse 11.0 repo. The latest I can find is 2.16. Building gtk-sharp from trunk requires glib2-devel 2.18. I see glib2-devel 2.18 in the openSuse 11.1 repos. Does anyone know where to get 2.18 for opensuse 11.0, or have all devs upgraded to 11.1 ? Thanks ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
[Mono-dev] Support for System.Net.ServicePoint.SetTcpKeepAlive
.NET FX 3.5 SP1 (and .NET 2.0 SP2) seems to have added a useful function to the System.Net.ServicePoint class - SetTcpKeepAlive. Which version of Mono would this be aligned to? Are there any plans to add similar support? Thanks! Bassam ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
Re: [Mono-dev] Bitmap manipulation - am I doing it right?
Stifu skrev: 2) How would you do this, technically? Because the only solution that comes to my mind is to clone a little part of my Bitmap to create the temporary copy... and making a sub-sized clone of a Bitmap is actually much slower than making a full clone. So it'd be actually slower than my current implementation. Make a clone which you then hold on to, and only let it grow bigger. Then you use that bitmap for the operation, i.e. it only has to be created once, used many times. Makes sense? /Rob ___ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
