<div dir="auto">Juan, this is amazing, congratulations!</div><div dir="auto"> </div><div dir="auto">Did you do any benchmarks to measure the speed up factor you get from the plug-in vs the pure Smalltalk version?</div><div dir="auto"> </div><div> <div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 23 Mar 2021 at 7:39 AM Juan Vuletich via Cuis-dev <<a href="mailto:cuis-dev@lists.cuis.st">cuis-dev@lists.cuis.st</a>> wrote: </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)">On 3/22/2021 5:55 PM, David T. Lewis via Cuis-dev wrote: > Hello Juan, > > I recall from previous presentations that development of a VM plugin > was on the to-do list for your vector graphics package. Could you > please say a few words about what is needed? If it is something that > I could help with, I would be happy to assist. > > Dave > Hello David, Eliot, I've been working on it for a couple of weeks, and it is starting to take off! So, David, you just triggered an announcement. I have just pushed the relevant files to GitHub. There are several ways to explore this. A - You want to see it running. Experimental. I only buit it for MacOS. 1) Grab VM including the plugin from <a href="https://www.dropbox.com/sh/rhkt4ayq24t2xbf/AACDb3mrjMUDB8Mptd-Bi6Zsa?dl=0" rel="noreferrer" target="_blank">https://www.dropbox.com/sh/rhkt4ayq24t2xbf/AACDb3mrjMUDB8Mptd-Bi6Zsa?dl=0</a> 2) Pull Cuis repo. 3) Start Cuis with the VM above 4) Evaluate: Feature require: 'VectorGraphics'. 5) Set a TT Font (Stuff will break with StrikeFonts and you'll need to kill the image) 6) Evaluate: M3Exp01Morph new openInWorld. 7) Play with the halo. Very slow! Still running the Smalltalk code for VectorEngine 8) Evaluate: (self runningWorld canvas instVarNamed: 'vectorCanvas') usePlugin. 9) Play with the halo. Rotate (bottom left handle) and Zool (bottom right handle) Now it is very fast! The plugin is working. 10) Hide the taskbar 11) redefine WidgetMorph>>requiresVectorCanvas to answer true, 12) refresh the display. Now every window and window element, including all the text, is drawn by VectorEngine. You might notice that all the appareances of any glyph, for example $a are no longer identical. Text layout and Glyph placement is done with Float arithmetic, using subpixel locations! 13) redefine WidgetMorph>>hasVariableExtent to answer false. 14) Open the halo on any window. Use the rotate and zoom handles. 15) Yes. We can do high quality, subpixel antialiased text at _any_ scale and rotation angle! I don't know of any other Smalltalk or windowing system that can do this. It is like pdf scaling, but for _all_ the UI! B - You want to look at the generated C code for the plugin, or build it for another platform. You need a working setup to build the OpenSmalltalk VM. The dropbox opensmalltalk-vm includes the files needed to build the VM with the plugin. C - You want to experiment with the Slang plugin source code. I have only done this in Cuis, not yet in the official Squeak VMMaker image. 1) Clone / pull VMMaker repo 2) Feature require: 'VMMaker'. 3) FileIn '<a href="http://IntegerArrayWordArray-stdint-VMMaker-jmv.006.cs.st" rel="noreferrer" target="_blank">IntegerArrayWordArray-stdint-VMMaker-jmv.006.cs.st</a>' 4) Feature require: 'VectorEnginePlugin' 5) VectorEnginePlugin translateInDirectory: DirectoryEntry currentDirectory doInlining: true I wanted to use stdint.h C types. The file <a href="http://IntegerArrayWordArray-stdint-VMMaker-jmv.006.cs.st" rel="noreferrer" target="_blank">IntegerArrayWordArray-stdint-VMMaker-jmv.006.cs.st</a> includes changes to VMMaker to generate the proper declarations. David, Eliot, do you think this is a sensible way to enable the use of stdint.h? It would affect any uses of IntegerArray and WordArray. I think we'd use stdint.h as much as possible. But I'm not certain if these changes could break other things. Feedback is most welcome. Cheers, -- Juan Vuletich <a href="http://www.cuis-smalltalk.org" rel="noreferrer" target="_blank">www.cuis-smalltalk.org</a> <a href="https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev" rel="noreferrer" target="_blank">https://github.com/Cuis-Smalltalk/Cuis-Smalltalk-Dev</a> <a href="https://github.com/jvuletich" rel="noreferrer" target="_blank">https://github.com/jvuletich</a> <a href="https://www.linkedin.com/in/juan-vuletich-75611b3" rel="noreferrer" target="_blank">https://www.linkedin.com/in/juan-vuletich-75611b3</a> @JuanVuletich -- Cuis-dev mailing list <a href="mailto:Cuis-dev@lists.cuis.st" target="_blank">Cuis-dev@lists.cuis.st</a> <a href="https://lists.cuis.st/mailman/listinfo/cuis-dev" rel="noreferrer" target="_blank">https://lists.cuis.st/mailman/listinfo/cuis-dev</a> </blockquote></div></div>