Re: Patch for OpenGL fullscreen bug

Posted on 2013-07-17, 11:23

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by TeaRex

in DOSBox Development

in DOSBox Development

What I have done in my own DOSBox build is this: - when dosbox changes resolution, I create a "bitmap" in memory (well, just a char buffer), initializes is to all zeroes (with memset), and uploads to the dosbox opengl texture using glTexture2D - causing the entire texture (including the parts …

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Re: "If you end up with small window on a large screen..."

Posted on 2013-07-16, 08:15

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by TeaRex

in DOSBox General

in DOSBox General

Looks like "machine=vgaonly" was the culprit. With "machine=svga_s3" everything works as it should, even without any scalers. Now I'm just wondering why vgaonly is so problematic. @collector: I'm trying to fill a full screen. At least to the point where there's black bars only at the top and bottom …

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Re: "If you end up with small window on a large screen..."

Posted on 2013-07-15, 18:45

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by TeaRex

in DOSBox General

in DOSBox General

Thanks NY00123. I'm building from current SVN code. Unfortunately, none of your fullresolution= suggestions seem to make any difference. I should add that "scaler=normal2x" or "scaler=normal3x" does nothing either. Appending "forced" to the scaler line causes DOSBox to fail at startup - "normal2x …

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"If you end up with small window on a large screen..."

Posted on 2013-07-15, 15:54

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by TeaRex

in DOSBox General

in DOSBox General

"...try an output different from surface." I did try all other options (overlay, opengl, openglnb) but it doesn't seem to change anything - I still end up with a small content area surrounded by large black borders in fullscreen mode. DOSBox shows NO error messages of any kind (e.g. "falling back to …

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Re: Greek character support in programs running in dosbox

Posted on 2013-02-01, 23:04

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by TeaRex

in DOSBox Games/Apps

in DOSBox Games/Apps

Kalispera, I do not think that you need a special Macintosh Greek font. Just a normal DOS Greek font. Download from the link given by ykhwong above, it seems that it is still valid.

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Re: Dosbox Background Color & Font Change

Posted on 2013-02-01, 22:36

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by TeaRex

in DOSBox General

in DOSBox General

If it is one of the older Infocom games (i.e. not one of the last ones), try starting the game in DOSBox with the /W parameter added to the command line. For most of the games, that should get you the familiar grey-on-blue look with a red-on-grey status line.

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Re: DOSBox is Jan 2013 sourceforge project of the month

Posted on 2013-01-16, 16:27

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by TeaRex

in DOSBox General

in DOSBox General

Congratulations from me too, what a good job done over all these years! I hope the positive emotions created by this will be enough to get the voodoo/glide stuff into the official build... 😀 And yes, better integration of the MT-32 would be a really big plus as well.

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Re: SimCity 2000 problem

Posted on 2012-12-03, 22:54

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by TeaRex

in DOSBox Games/Apps

in DOSBox Games/Apps

Especially, if there is any of the machine types that matches one graphics card type which is selectable in the Sim City 2000 setup - that one should work. EDIT: Better to follow ripsaw's advice, I guess he has the game.

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Re: SimCity 2000 problem

Posted on 2012-12-03, 22:50

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by TeaRex

in DOSBox Games/Apps

in DOSBox Games/Apps

Yes that's what I mean. I don't have your specific game so I don't know which one is right, but you should try the several svga and vesa modes as well as vgaonly. Also note that this has absolutely nothing to do with your real hardware graphics card model.

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Re: SimCity 2000 problem

Posted on 2012-12-03, 22:16

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by TeaRex

in DOSBox Games/Apps

in DOSBox Games/Apps

Have you tried changing the video card emulated by DOSBox? If you're on Windows, go to start->dosbox->options and change the option for the emulated video card.

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Re: I'd like ANSI.SYS emulation

Posted on 2012-11-11, 21:47

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by TeaRex

in DOSBox Games/Apps

in DOSBox Games/Apps

Have you tried NNANSI or another TSR type ANSI driver? DOSBox can't normally handle MS-DOS device drivers that need to go in config.sys, but it can handle TSRs for the autoexec.bat just fine.

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Re: Any Developers of Paradox for DOS out there???

Posted on 2012-11-05, 09:55

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by TeaRex

in DOSBox General

in DOSBox General

I haven't tried printing anything to paper from within Paradox, and that might not work because Paradox assume that all printers are connected via either a Parallel port (LPT) or a Serial port (COM) and my Windows 7 system has neither. As such this is of no importance. Programs running within …

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Re: Config.sys FCBS and Stacks supported be dosbox?

Posted on 2012-10-16, 07:28

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by TeaRex

in DOSBox General

in DOSBox General

DOSBox allocates FCBs dynamically. The number is limited only by the amount of (real, not emulated) memory that you have. If I understand the code correctly, you can use many thousands of FCBs if you want. And for what do you need STACKS=18,256? If I understand the code correctly, DOSBox handles …

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Re: Patch to allow (not enforce) -flto compilation on GCC

Posted on 2012-10-14, 09:37

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by TeaRex

in DOSBox Development

in DOSBox Development

Yes it's fine. "jmp 1f" just gets translated to "jump to the NEXT place where there's a label called 1". So you can have it as often as you want.

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Patch to allow (not enforce) -flto compilation on GCC

Posted on 2012-10-13, 19:00

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by TeaRex

in DOSBox Development

in DOSBox Development

The following small patch makes it possible to compile DOSBox under GCC with link-time optimization without hitting compilation errors regarding duplicate labels, caused by including the FPU assembly code several times (for the several cores). It does that by using GCC's local label feature. Of its …

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Re: Ultima 7 Snow Reversed?

Posted on 2012-10-13, 18:50

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by TeaRex

in DOSBox Games/Apps

in DOSBox Games/Apps

Here's a patch that fills the unused BIOS areas with random numbers: --- src/hardware/memory.cpp (revision 3798) +++ src/hardware/memory.cpp (working copy) @@ -24,6 +24,7 @@ #include "paging.h" #include "regs.h" +#include #include #define PAGES_IN_BLOCK ((1024*1024)/MEM_PAGE_SIZE) @@ -543,7 +544,7 …

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Re: "Can't create drive from file"

Posted on 2012-10-13, 18:45

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by TeaRex

in DOSBox General

in DOSBox General

Did you partition your image before formatting it?

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Re: Config.sys FCBS and Stacks supported be dosbox?

Posted on 2012-10-13, 18:22

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by TeaRex

in DOSBox General

in DOSBox General

AFAIK, DOSBox keeps the data which it needs for administrating file control blocks in its own memory (outside of the emulated DOS machine memory) and it doesn't push anything on the emulated program's own stack either. Thus, the commands are not needed.

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Re: Java Port

Posted on 2012-10-12, 14:22

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by TeaRex

in DOSBox Development

in DOSBox Development

Well, first I have to say my German keyboard (like all German keyboards) has no "Right Alt" key as such - so I tried AltGr+Enter instead. The game (which had been running very well in its window before I did that) freezed immediately without going full-screen. My system is a Core2Quad running at 2. …

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Re: On Ubuntu 12.10: Only upper left quarter of screen visible. WTF?

Posted on 2012-10-03, 16:27

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by TeaRex

in DOSBox General

in DOSBox General

Bingo, it seems to be a general SDL problem. If the screen is the right size before starting an SDL program, everything works, but if SDL tries to resize the screen, only the upper left quarter will be visible. I'll take a look at what SDL does to actually do the resizing... maybe I can distill this …

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