ConwayLife.com

Andrew wrote: May 31st, 2024, 9:39 pm

AlbertArmStain wrote: May 31st, 2024, 5:43 pm The web version will not load my catforce output rle while the downloaded version of Golly will.

Please provide a short example of some RLE code that fails.

x = 0, y = 0, rule = B3/S23
12$28bo99bo99bo$28b3o97b3o15b2o80b3o15b2o$31bo99bo13bobo83bo13bobo$30b2o98b2o13b2o83b2o13b2o$43b2o98b2o98b2o$42bobo97bobo5b2o90bobo5b2o$42b2o98b2o5bobo90b2o5bobo$149b2o98b2o$147b2o98b2o$146bobo97bobo$146b2o98b2o10$49bo99bo99bo$47bobo97bobo97bobo$47b3o97b3o97b3o$47bo99bo99bo3$53b2o98b2o98b2o$53b2o98b2o98b2o2$43b2o98b2o98b2o$44bo99bo99bo$43bo3b2o94bo3b2o94bo3b2o$43bobo2bo94bobo2bo94bobo2bo$42b2ob2o95b2ob2o95b2ob2o$40bo2bobo94bo2bobo94bo2bobo$40b3o4bo92b3o4bo92b3o4bo$32b2obobo8b2o84b2obobo8b2o84b2obobo8b2o$32bob2ob4o91bob2ob4o91bob2ob4o$36bo3bo95bo3bo95bo3bo$33b2o2bo95b2o2bo95b2o2bo$33bob2o96bob2o96bob2o48$2$442b2o$41b2o399bo$41bo299b2o100bo$42bo100b2o96b2o98bo98b4o$39b4o96b2o2bo97bobo99bo2bo93bo$39bo99bobobo99bo98b5o96b3o$42b3o95bo2b2o97b2ob2obo194bo2bo$42bo2bo97bo2bo98bob2o95bo100b2o$44b2o99b2o98bo97bobo$244b2o98b2o7$26bo99bo99bo99bo99bo$25bobo97bobo97bobo97bobo97bobo$26bo99bo99bo99bo99bo12$49bo99bo99bo99bo99bo$47bobo97bobo97bobo97bobo97bobo$47b3o97b3o97b3o97b3o97b3o$47bo99bo99bo99bo99bo3$53b2o98b2o98b2o98b2o98b2o$53b2o98b2o98b2o98b2o98b2o2$43b2o98b2o98b2o98b2o98b2o$44bo99bo99bo99bo99bo$43bo3b2o94bo3b2o94bo3b2o94bo3b2o94bo3b2o$43bobo2bo94bobo2bo94bobo2bo94bobo2bo94bobo2bo$42b2ob2o95b2ob2o95b2ob2o95b2ob2o95b2ob2o$40bo2bobo94bo2bobo94bo2bobo94bo2bobo94bo2bobo$40b3o4bo92b3o4bo92b3o4bo92b3o4bo92b3o4bo$32b2obobo8b2o84b2obobo8b2o84b2obobo8b2o84b2obobo8b2o84b2obobo8b2o$32bob2ob4o91bob2ob4o91bob2ob4o91bob2ob4o91bob2ob4o$36bo3bo95bo3bo95bo3bo95bo3bo95bo3bo$33b2o2bo95b2o2bo95b2o2bo95b2o2bo95b2o2bo$33bob2o96bob2o96bob2o96bob2o96bob2o48$3$41b2o98b2o98b2o98b2o98b2o$41bo99bo99bo99bo99bo$42bo99bo99bo99bo99bo$39b4o96b4o96b4o96b4o96b4o$39bo99bo99bo99bo99bo$42b3o97b3o97b3o97b3o97b3o$42bo2bo96bo2bo96bo2bo96bo2bo96bo2bo$44b2o98b2o98b2o98b2o98b2o22$49bo99bo99bo74b2o23bo99bo$47bobo74b2o21bobo97bobo74b2o21bobo97bobo$28b2o17b3o74b2o2b2o17b3o78b2o17b3o78b2o17b3o78b2o17b3o$28b2o17bo80b2o17bo76b2o2b2o17bo80b2o17bo80b2o17bo$224b2o2$53b2o98b2o98b2o98b2o71b2o25b2o$53b2o98b2o98b2o98b2o71b2o25b2o2$43b2o98b2o98b2o98b2o98b2o$44bo99bo99bo99bo99bo$43bo3b2o94bo3b2o94bo3b2o94bo3b2o94bo3b2o$

AlbertArmStain wrote: June 1st, 2024, 4:50 pm When I try to paste it into the web version of Golly, it simply ignores it too

Andrew wrote: June 1st, 2024, 7:14 pm

AlbertArmStain wrote: June 1st, 2024, 4:50 pm When I try to paste it into the web version of Golly, it simply ignores it too

Works fine in web Golly on my Mac in Firefox and Chrome, so use a different browser or ask the author of catforce to generate nicer RLE.

LaundryPizza03 wrote: July 6th, 2024, 1:36 am Running this script from a beta version of EmnumPattEvo crashes Golly. I think it is not designed for Golly, but it is unclear why it crashes Golly if I attempt to run it.

b-engine wrote: May 21st, 2024, 10:15 pm I don't know if this is the right thread, but in the mobile version 1.3 the text is too large: ...

AlbertArmStain wrote: May 31st, 2024, 5:43 pm The web version will not load my catforce output rle while the downloaded version of Golly will.

AlbertArmStain wrote: June 3rd, 2024, 6:25 am The creator of the version of Catforce I’m currently using is guaranteed not to do anything because he never reads the forums.

Vort wrote: July 21st, 2024, 5:12 pm [...] (because Golly have no support for tabs, like web browsers have) [...]

confocaloid wrote: July 21st, 2024, 5:30 pmDo you know about layers? (The menu "Layer" in Golly; "Help -> Layer Menu" for more information.)

Andrew wrote: July 20th, 2024, 10:20 pm We're currently working on a new version of Android Golly but haven't been able to reproduce this problem on any of our devices (with Android versions ranging from 5.1 to 13), so please provide specific details about your device: Android version, screen dimensions and resolution if you know them, and if you have some sort of magnification setting enabled.

Also, in future, please report Android-specific problems in the relevant "Golly x.x for Android" thread.

Vort wrote: July 21st, 2024, 5:12 pm Did anyone mentioned OS crashes when opening ~5 instances of Golly?

https://learn.microsoft.com/en-us/windows/win32/sysinfo/gdi-objects wrote:There is a theoretical limit of 65,536 GDI handles per session. However, the maximum number of GDI handles that can be opened per session is usually lower, since it is affected by available memory.

Vort wrote: July 25th, 2024, 5:28 pm

Vort wrote: July 21st, 2024, 5:12 pm Did anyone mentioned OS crashes when opening ~5 instances of Golly?

I figured out why crashes happen:
Because of gazillion icons created in wxBitmap** CreateIconBitmaps(const char** xpmdata, int maxstates).

https://learn.microsoft.com/en-us/windows/win32/sysinfo/gdi-objects wrote:There is a theoretical limit of 65,536 GDI handles per session. However, the maximum number of GDI handles that can be opened per session is usually lower, since it is affected by available memory.

rowett wrote: July 26th, 2024, 2:03 am I don't think that's relevant: CreateIconBitmaps is not a GDI API. Golly uses a graphical library called wxWidgets.

rowett wrote: July 26th, 2024, 2:03 am On startup Golly only creates around 200 icons.

diff --git a/gui-wx/wxalgos.cpp b/gui-wx/wxalgos.cpp
index 5f1290b1..516f93b1 100644
--- a/gui-wx/wxalgos.cpp
+++ b/gui-wx/wxalgos.cpp
@@ -590,17 +590,18 @@ wxBitmap** CreateIconBitmaps(const char** xpmdata, int maxstates)
         // initialize all pointers (not just those < maxstates)
         for (int i = 0; i < 256; i++) iconptr[i] = NULL;
         
+        wxBitmap* lastIcon = nullptr;
         for (int i = 0; i < numicons; i++) {
             wxRect rect(0, i*wd, wd, wd);
+            lastIcon = new wxBitmap(allicons.GetSubBitmap(rect));
             // add 1 to skip iconptr[0] (ie. dead state)
-            iconptr[i+1] = new wxBitmap(allicons.GetSubBitmap(rect));
+            iconptr[i+1] = lastIcon;
         }
         
         if (numicons < maxstates-1 && iconptr[numicons]) {
             // duplicate last icon
-            wxRect rect(0, (numicons-1)*wd, wd, wd);
             for (int i = numicons; i < maxstates-1; i++) {
-                iconptr[i+1] = new wxBitmap(allicons.GetSubBitmap(rect));
+                iconptr[i+1] = lastIcon;
             }
         }
     }
@@ -612,7 +613,15 @@ wxBitmap** CreateIconBitmaps(const char** xpmdata, int maxstates)
 void FreeIconBitmaps(wxBitmap** icons)
 {
     if (icons) {
-        for (int i = 0; i < 256; i++) delete icons[i];
+        for (int i = 0; i < 256; i++) {
+            wxBitmap* ptr = icons[i];
+            if (ptr == nullptr)
+                continue;
+            for (int j = i; j < 256; j++)
+                if (icons[j] == ptr)
+                    icons[j] = nullptr;
+            delete ptr;
+        }
         free(icons);
     }
 } 

Vort wrote: July 26th, 2024, 2:40 am CreateIconBitmaps creates GDI handles via new wxBitmap call.

Vort wrote: July 26th, 2024, 2:40 am CreateIconBitmaps have "// duplicate last icon" section, which creates largest amount of GDI handles.
It is probably ok to fix this problem like this (or in similar way - with smart pointers for example, std::shared_ptr)

rowett wrote: July 26th, 2024, 3:53 am Looks good. From my tests it reduced the GDI handles from over 5000 to 570 on startup.

Andrew wrote: July 27th, 2024, 10:38 pm Presumably Golly could also crash if 5 or more (non-cloned) layers are created. Chris, I'm unable to reproduce any crash on my Windows VM...

rowett wrote: July 29th, 2024, 2:53 amI can't reproduce the crash on my system. It may be because I'm on Windows 11 and the original report was on Windows 7.

Andrew wrote: July 27th, 2024, 10:38 pm... I have a (very!) vague memory that sharing icon pointers caused problems, ...

rowett wrote: July 29th, 2024, 2:53 amOn a side note using non-cloned layers doesn't seem to increase the used GDI handles so using Layers could be a workaround.

Vort wrote: July 29th, 2024, 3:27 am Anyway, how many instances did you tried to run simultaneously?
If 65536 handle limit is still in place in Windows 11, then with 5k handles per process, there should definitely be problems with 14 processes launched.

Gustone wrote: November 17th, 2024, 1:09 pm Zoomed out patterns in Windows Vista look like the left, in Windows 7 it's the right. What is the cause? How do i make it look like the left in Windows 7?

eRroR_6o6 wrote: December 16th, 2024, 9:50 pm If you try to draw a cell and reset a pattern simultaneously while it's running, it clears the whole layer. I have (by accident) learned this the hard way many, many times.

(Keep in mind I'm using golly 4.3b2, so maybe this was fixed in a newer version.)

Edit: I literally just got golly 4.3 a few minutes ago, and it still seems to have the bug.