Re: [Xmame] some aspect ratio questions
Julian Sikorski wrote: > Hans de Goede napisał(a): >> With DGA the code will show some frames twice when the monitor refresh >> rate is higher then the games, and drop some frames when vica versa. >> >> Regards, >> >> Hans >> > > Would it be a problem to add the same feature (which is mentioned as > method 3 in the article) to xvideo/opengl drivers, or is it possible > with dga only? > > Now, back to the aspect ratio. Is the 4:3 arcade monitor size hard-coded > for single monitor horizontal games (vertical ones have 3:4, dual screen > ones 6:3, etc.) ? I'm asking because it is the one I'm getting as > gameboy output, and IIRC its screen was square. > Nope, the aspect ratie of the physical dimensions of the monitor used by the cabinet can be specified by the driver, if not specified you get the default. Regards, Hans ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
Re: [Xmame] some aspect ratio questions
Hans de Goede napisał(a): > > With DGA the code will show some frames twice when the monitor refresh > rate is higher then the games, and drop some frames when vica versa. > > Regards, > > Hans > Would it be a problem to add the same feature (which is mentioned as method 3 in the article) to xvideo/opengl drivers, or is it possible with dga only? Now, back to the aspect ratio. Is the 4:3 arcade monitor size hard-coded for single monitor horizontal games (vertical ones have 3:4, dual screen ones 6:3, etc.) ? I'm asking because it is the one I'm getting as gameboy output, and IIRC its screen was square. ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
Re: [Xmame] some aspect ratio questions
Julian Sikorski wrote: Hans de Goede napisał(a): Julian Sikorski wrote: Hans de Goede napisał(a): Julian Sikorski wrote: Hi. I have some questions about -keepaspect and -displayaspectratio options. To make the games look like in the arcade, I should use -ka switch, right? This would mean that games with weird resolutions, e.g. 400x254 (mitwunit) were originally stretched in the arcade, or the monitors used did not have square pixels. Correct Also, do I understand the purpose of -dar switch correctly? Is it used to tell xmame the shape of pixels on the monitor? nope, its used to tell xmame the shape of the monitor, so for a normal montior it would be 4:3=1.33 and for a widescreen 16:9, etc. Regards, Hans ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame Now it is finally clear. So it means that using 1280x1024 on a normal monitor leads to wrong aspect ratio. No it doesn't the video code passes the aspect code the actual resolution being used even something ridiculous like 300x480 should work, provided that that mode really fills your 4:3 screen and you're using a video display method which can do hardware scaling. Regards, Hans ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame OK thanks. Now about refresh rate. Some time ago I read the following retroblast article: http://www.retroblast.com/articles/winmamemon_1.html There seems to be plenty of options to fiddle with refresh rates on windows mame, while I have found only one (-xsync) in xmame. How does original game refresh rate suffer from this? I am running at 85 Hz if that matters. Under unix its impossble to set the refresh rate (not quite true. now a days it can be done using Xrandr, but Xrandr has other issues). So you're indeed stuck to the refreshrate of the video mode the aspect ratie code chooses when running with DGA, without DGA their is no vsync, so the refresh rate doesn't matter (and you will have tearing). With DGA the code will show some frames twice when the monitor refresh rate is higher then the games, and drop some frames when vica versa. Regards, Hans ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
Re: [Xmame] some aspect ratio questions
Hans de Goede napisał(a): > > Julian Sikorski wrote: >> Hans de Goede napisał(a): >>> Julian Sikorski wrote: Hi. I have some questions about -keepaspect and -displayaspectratio options. To make the games look like in the arcade, I should use -ka switch, right? This would mean that games with weird resolutions, e.g. 400x254 (mitwunit) were originally stretched in the arcade, or the monitors used did not have square pixels. >>> Correct >>> Also, do I understand the purpose of -dar switch correctly? Is it used to tell xmame the shape of pixels on the monitor? >>> nope, its used to tell xmame the shape of the monitor, so for a normal >>> montior it would be 4:3=1.33 and for a widescreen 16:9, etc. >>> >>> Regards, >>> >>> Hans >>> >>> ___ >>> Xmame mailing list >>> Xmame@toybox.twisted.org.uk >>> http://toybox.twisted.org.uk/mailman/listinfo/xmame >>> >> Now it is finally clear. So it means that using 1280x1024 on a normal >> monitor leads to wrong aspect ratio. >> > > No it doesn't the video code passes the aspect code the actual > resolution being used even something ridiculous like 300x480 should > work, provided that that mode really fills your 4:3 screen and you're > using a video display method which can do hardware scaling. > > Regards, > > Hans > > ___ > Xmame mailing list > Xmame@toybox.twisted.org.uk > http://toybox.twisted.org.uk/mailman/listinfo/xmame > OK thanks. Now about refresh rate. Some time ago I read the following retroblast article: http://www.retroblast.com/articles/winmamemon_1.html There seems to be plenty of options to fiddle with refresh rates on windows mame, while I have found only one (-xsync) in xmame. How does original game refresh rate suffer from this? I am running at 85 Hz if that matters. ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
Re: [Xmame] some aspect ratio questions
Julian Sikorski wrote: > Hans de Goede napisał(a): >> Julian Sikorski wrote: >>> Hi. I have some questions about -keepaspect and -displayaspectratio >>> options. To make the games look like in the arcade, I should use -ka >>> switch, right? This would mean that games with weird resolutions, e.g. >>> 400x254 (mitwunit) were originally stretched in the arcade, or the >>> monitors used did not have square pixels. >> Correct >> >>> Also, do I understand the purpose of -dar switch correctly? Is it used >>> to tell xmame the shape of pixels on the monitor? >> nope, its used to tell xmame the shape of the monitor, so for a normal >> montior it would be 4:3=1.33 and for a widescreen 16:9, etc. >> >> Regards, >> >> Hans >> >> ___ >> Xmame mailing list >> Xmame@toybox.twisted.org.uk >> http://toybox.twisted.org.uk/mailman/listinfo/xmame >> > Now it is finally clear. So it means that using 1280x1024 on a normal > monitor leads to wrong aspect ratio. > No it doesn't the video code passes the aspect code the actual resolution being used even something ridiculous like 300x480 should work, provided that that mode really fills your 4:3 screen and you're using a video display method which can do hardware scaling. Regards, Hans ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
Re: [Xmame] some aspect ratio questions
Hans de Goede napisał(a): > > Julian Sikorski wrote: >> Hi. I have some questions about -keepaspect and -displayaspectratio >> options. To make the games look like in the arcade, I should use -ka >> switch, right? This would mean that games with weird resolutions, e.g. >> 400x254 (mitwunit) were originally stretched in the arcade, or the >> monitors used did not have square pixels. > Correct > >> Also, do I understand the purpose of -dar switch correctly? Is it used >> to tell xmame the shape of pixels on the monitor? > nope, its used to tell xmame the shape of the monitor, so for a normal > montior it would be 4:3=1.33 and for a widescreen 16:9, etc. > > Regards, > > Hans > > ___ > Xmame mailing list > Xmame@toybox.twisted.org.uk > http://toybox.twisted.org.uk/mailman/listinfo/xmame > Now it is finally clear. So it means that using 1280x1024 on a normal monitor leads to wrong aspect ratio. ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
Re: [Xmame] some aspect ratio questions
Julian Sikorski wrote: > P.S. > Lawrence, I think you've forgotten to commit src/unix/sound.c together > with other 0.106u1 fixes. Oops, done. ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
Re: [Xmame] some aspect ratio questions
Julian Sikorski wrote: > Hi. I have some questions about -keepaspect and -displayaspectratio > options. To make the games look like in the arcade, I should use -ka > switch, right? This would mean that games with weird resolutions, e.g. > 400x254 (mitwunit) were originally stretched in the arcade, or the > monitors used did not have square pixels. Correct > Also, do I understand the purpose of -dar switch correctly? Is it used > to tell xmame the shape of pixels on the monitor? nope, its used to tell xmame the shape of the monitor, so for a normal montior it would be 4:3=1.33 and for a widescreen 16:9, etc. Regards, Hans ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
[Xmame] some aspect ratio questions
Hi. I have some questions about -keepaspect and -displayaspectratio options. To make the games look like in the arcade, I should use -ka switch, right? This would mean that games with weird resolutions, e.g. 400x254 (mitwunit) were originally stretched in the arcade, or the monitors used did not have square pixels. Also, do I understand the purpose of -dar switch correctly? Is it used to tell xmame the shape of pixels on the monitor? Thanks for the clarification in advance. P.S. Lawrence, I think you've forgotten to commit src/unix/sound.c together with other 0.106u1 fixes. ___ Xmame mailing list Xmame@toybox.twisted.org.uk http://toybox.twisted.org.uk/mailman/listinfo/xmame
