Re: Emscripten port, for running in web browsers

Posted on 2014-09-02, 23:10

by

by koun

in DOSBox Development

in DOSBox Development

Nice. It's really cool to see someone still working on this. If I could make a small suggestion: The aspect ratio of the output should be corrected to 4:3. You can use the 'forcedAspectRatio' member of the Emscript 'Module' object for that: Copy code to clipboard 1 Module['forcedAspectRatio'] = 4 / …

---

Re: Emscripten port, for running in web browsers

Posted on 2014-02-18, 18:40

by

by koun

in DOSBox Development

in DOSBox Development

I managed to get Emscripten (more or less) working on my Windows machine and am now able to package software for dosbox.js. I haven't tried much, yet, but I'm really impressed. However, I got one thing that I really hope can be fixed: After the program you run finishes, in most cases, the output to …

---

Re: Emscripten port, for running in web browsers

Posted on 2014-02-10, 22:52

by

by koun

in DOSBox Development

in DOSBox Development

I didn't know Emscripten has its own package format, but it makes sense as it has to fake a file-system. (I never used Emscripten, but porting Java to JS via GWT has similar characteristics, especially the need to replace the main loop with timeouts to let the browser update and repaint.) IMHO zips …

---

Re: Emscripten port, for running in web browsers

Posted on 2014-02-09, 22:48

by

by koun

in DOSBox Development

in DOSBox Development

Impressive. Works nicely, even on some mobile devices. I am, however, wondering why it is necessary to have a custom packaging system instead of, e.g., zip.

---

Re: Java Port

Posted on 2013-02-04, 22:31

by

by koun

in DOSBox Development

in DOSBox Development

impressive! uses more than 50% of my 2.4ghz quad core. very nice work on the multi-threading. I'll have to try it again with o/c to 3ghz. I get the following exception every time I loose the game (Windows 7 64bit, Oracle Java 7 64bit): No byte handler for read from 60400804java.lang.Exception: …

---

Re: JavaScript port of Dosbox

Posted on 2011-09-10, 22:46

by

by koun

in DOSBox Development

in DOSBox Development

I'm working on sound and I think I'm close to getting it work. For testing I'd need some shareware games or sample programs that use sound blaster (supported by dosbox) with as low CPU requirements as possible. Any suggestions are much appreciated.

---

Re: JavaScript port of Dosbox

Posted on 2011-09-02, 22:18

by

by koun

in DOSBox Development

in DOSBox Development

I have written a simple audio class wrapping riffwave.js by Pedro Ladaria. It should work in any browser that supports html5 audio elements including the wave format. I'll look into adding it into your project when i get some free time. Could you explain the keyboard input issues? I'll see if I can …

---

Re: JavaScript port of Dosbox

Posted on 2011-09-01, 17:58

by

by koun

in DOSBox Development

in DOSBox Development

BTW, you might get more feedback when starting a thread in "DOSBox Development", or maybe a mod can move this thread there.

---

Re: JavaScript port of Dosbox

Posted on 2011-08-31, 21:37

by

by koun

in DOSBox Development

in DOSBox Development

Awesome work (I mean that). I looked into porting jdosbox (also considered JPC at one point) using GWT before, but never managed to finish the important step of replacing the main-loop with a repeatedly called function, as there are multiple nested "main"-loops in jdosbox. I'll look through your …

---

Re: Java Port

Posted on 2011-05-28, 12:44

by

by koun

in DOSBox Development

in DOSBox Development

I can confirm the fix for FreeCell (that was quick). Civ2 is still the same. Thanks for the pointers to the functions. I'll report back when I got results or questions.

---

Re: Java Port

Posted on 2011-05-27, 21:56

by

by koun

in DOSBox Development

in DOSBox Development

I can confirm the performance improvements. Well done! However, I also found 2 ways to reliably crash jDosBox using dynamic core: 1. Starting FreeCell in Windows 3.11 (not sure if win32s is supported, it worked with the non-dynamic core) [log/stack trace always the same] 2. In Civilization 2 get to …

---

Re: Java Port

Posted on 2011-05-12, 21:57

by

by koun

in DOSBox Development

in DOSBox Development

@felixcatx: The content of the Java console might help. You can activate it in control panel / java / advanced / java console / show (translated from German Windows). It should then pop up automatically when the applet is loaded. When it does, immediately (as fast as you can) hit the "5" key (not " …

---

Re: Java Port

Posted on 2011-05-12, 06:08

by

by koun

in DOSBox Development

in DOSBox Development

The Quake applet works for me (XP-pro German 32 bit on 64 bit Hardware running Sun/Oracle Java 1.6.0_25 in Chrome 12 dev) @felixcatx: Applet issues on different systems can be tricky. You could try clearing the browser and Java caches, using a different browser and (re)installing the latest version …

---

Re: Java Port

Posted on 2011-04-16, 00:52

by

by koun

in DOSBox Development

in DOSBox Development

...games, like Descent, every time you turn a corner it pauses while some new code gets compiled... If all required input data for the dynamic compilation can be cloned quickly you could do the following: When the matching compiled class (or a placeholder (see below)) is not found in the cache, add …

---

Re: Java Port

Posted on 2011-03-30, 06:28

by

by koun

in DOSBox Development

in DOSBox Development

Confirmed. Running Civilization II in Windows 3.11 @1024x768x256 I can now load premade worlds.

---

Re: Java Port

Posted on 2011-03-29, 23:51

by

by koun

in DOSBox Development

in DOSBox Development

I have to agree, that the progress, this port has made, is awesome. Win3.11 working is really another impressive step. However, I have found an issue when trying to open files in Win3.11: When I double click a file in an open dialog, or single click it and then click OK, it is not opened, but …

---

Re: Java Port

Posted on 2011-03-09, 21:02

by

by koun

in DOSBox Development

in DOSBox Development

I don't think the dialog to accept the certificate is really a problem. Jake2 is indeed another impressive project. BTW, there is a GWT based port running Quake2 in JavaScript using WebGL. To Java CDs are just another file system. Also, I know of no lib allowing better access to the hardware of the …

---

Re: Java Port

Posted on 2011-03-04, 19:05

by

by koun

in DOSBox Development

in DOSBox Development

Java applets can access the hard drive. To do so they have to be signed. AFAIK you can use a self signed certificate for that. The user has to accept it. Then the applet has the same privileges as a desktop app.

---

Re: Java Port

Posted on 2011-02-26, 03:55

by

by koun

in DOSBox Development

in DOSBox Development

Duke in an applet would be awesome. Please keep us updated as you work through that list. Another thing I'm curious about: Do you port the code completely manually or do you use any tools or scripts? Currently I don't have time to help with code. At least not on a project of this complexity. I'll …

---

Re: Java Port

Posted on 2011-02-25, 22:02

by

by koun

in DOSBox Development

in DOSBox Development

first of all: very impressive. Runs straight out of Eclipse. And the applet running Doom is also pretty cool. One issue i noticed is that my German keyboard layout does not work, many keys are misplaced or not working at all. Switching to the US layout (and remembering the positions of all relevant …

---