Menu - Revision history

Acid: /* global options */

2023-11-22T12:43:26Z

global options

@@ Line 77: / Line 77: @@
 === global options ===
-This submenu has global options (DVI modes, OSD timeouts)
+This submenu has global options (DVI, timeouts, audio freq itp.)
 * DVI mode
 ** pure DVI - pure DVI signal without audio (compatible with most old LCD 17" and 19" displays)
-** DVI with audio - adds audio packets to DVI signal which is not compatible with DVI, but usually recognised correctly by HDMI devices connected to Medusa via appropriate cables.
+* DVI extras (only in extended DVI mode)
 * OSD timeouts
 ** main menu

Acid: /* rgb only */

2023-11-22T12:12:43Z

rgb only

← Older revision		Revision as of 12:12, 22 November 2023
Line 50:		Line 50:
	=== rgb only ===		=== rgb only ===

	This submenu has options that are used only when picture is processed by RGB A/D converter (front LED is red, on OLED info says that source of signal is RGB "RGB: xxxxxxx")		This submenu has options that are used only when picture is processed by RGB A/D converter (front LED is red, on OLED info says that source of signal is RGB "RGB: xxxxxxx"). In current firmware this menu is only visible when RGB signal is processed.

	[[File:sample_phase.png\|200px\|thumb\|sample phase]]		[[File:sample_phase.png\|200px\|thumb\|sample phase]]
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	* pixels/line - for all recognised modes this option shouldn't be adjusted - for all known computers this parameter is predefined in Medusa, but when you connect something that is not recognised ("unknown PAL", "unknown NTSC", "unrecognised lo" or "unrecognised hi") you can set this option to improve picture quality.		* pixels/line - for all recognised modes this option shouldn't be adjusted - for all known computers this parameter is predefined in Medusa, but when you connect something that is not recognised ("unknown PAL", "unknown NTSC", "unrecognised lo" or "unrecognised hi") you can set this option to improve picture quality.
	* double res - doubles X resolution (practically useful only for Amiga's "Super Hires" modes)		* double res - doubles X resolution (practically useful only for Amiga's "Super Hires" modes)
			* double lines - doubles Y resolution (standard for PAL/NTSC modes)
	* auto levels - runs a routine, that tries to find best offset and gain for R, G and B signals - use it, when the picture is too dark or too light - usually it is automatically performed whenever you connect a specific device for the first time, but if you have two cables for the same computer then after a cable change you may need to run this manually.		* auto levels - runs a routine, that tries to find best offset and gain for R, G and B signals - use it, when the picture is too dark or too light - usually it is automatically performed whenever you connect a specific device for the first time, but if you have two cables for the same computer then after a cable change you may need to run this manually.
	* component mode - changes R,G,B to Y,Cr,Cb (Y on green, Cr on red and Cb on blue) - after changing this option "auto levels" is always re-run		* component mode - changes R,G,B to Y,Cr,Cb (Y on green, Cr on red and Cb on blue) - after changing this option "auto levels" is always re-run
			** when active source is VGA
			*** RGB mode - standard RGB
			*** YCrCb - Y on green, Cr on red and Cb on blue)
			*** Mono on G - use green only as a mono signal, ignore red and blue
			** when active source is SCART
			*** YCrCb [Y<-CV] - Y on CV SCART pin, Cr on red, Cb on blue)
			*** YCrCb [Y<-G] - Y on green, Cr on red, Cb on blue)
			*** Mono [Y<-CV] - use CV as a mono signal, ignore red, green and blue signals
			*** Mono [Y<-G] - use green as a mono signal, CV as a synchro input, ignore red and blue
			*** Hybrid mode - Special S-Video mode. Process luma signal by RGB A/D and chroma by SDTV A/D. Experimental mode that increases S-Video quality.
			* digital mode (only when digital signal is processed) - switching between MDA/Hercules, RGBI/C128/CGA and EGA
			* lowpass filter (switch on/off lowpass filter in RGB A/D and external SCART-only LP filter)
			* luma delay (only when hybrid mode is active) - adjust chroma/luma shift
	* fingerprint - Medusa recognises input devices using "fingerprint" mechanism. For each device there is a predefined fingerprint in the firmware. But sometimes it may happen that your device is not recognised correctly, or it is not in Medusa's database at all. This option displays fingerprint parameters for currently connected device. These values may be used by Medusa developers to improve devices detection and adding new ones.		* fingerprint - Medusa recognises input devices using "fingerprint" mechanism. For each device there is a predefined fingerprint in the firmware. But sometimes it may happen that your device is not recognised correctly, or it is not in Medusa's database at all. This option displays fingerprint parameters for currently connected device. These values may be used by Medusa developers to improve devices detection and adding new ones.

Acid: /* shift/size */

2023-11-22T11:56:06Z

shift/size

← Older revision		Revision as of 11:56, 22 November 2023
Line 39:		Line 39:
	* dvi width - set display window to specific width (be aware that some displays do not accept all widths, so during changing for example from 720 to 800 screen may be black when values are in between, also every width change usually means sync lost, so it is better to change these values using OLED, not OSD)		* dvi width - set display window to specific width (be aware that some displays do not accept all widths, so during changing for example from 720 to 800 screen may be black when values are in between, also every width change usually means sync lost, so it is better to change these values using OLED, not OSD)
	* dvi height - set display window to specific height (same as above)		* dvi height - set display window to specific height (same as above)
	* dvi presets - beacuse usually we want to use well defined screen sizes, there are presets for screen width and height. When selected preset's height or width is too big for current input resolution, it is lowered to maximum possible value.		* dvi presets - beacuse usually we want to use well defined screen sizes, there are presets for screen width and height. When selected preset's height or width is too big for current input resolution, it is lowered to maximum possible value. Current firmware displays only available modes (lower than current native resolution).
	** 1280x1024 (mainly for viking mode in MIST)		** 1280x1024 (mainly for viking mode in MIST)
			** 1024x768 (standard old Mac/PC)
	** 800x600 (whole screen in PAL modes - with all borders)		** 800x600 (whole screen in PAL modes - with all borders)
	** 720x576 (standard PAL resolution - most compatible for PAL modes)		** 720x576 (standard PAL resolution - most compatible for PAL modes)

Acid: /* filters */

2023-11-22T11:53:19Z

filters

← Older revision		Revision as of 11:53, 22 November 2023
Line 22:		Line 22:
	** 512 colors - round all color values to 512 color palette		** 512 colors - round all color values to 512 color palette
	** 4096 colors - round all color values to 4096 color palette		** 4096 colors - round all color values to 4096 color palette
			** ZX/CPC colors - round all color values to 27 color palette
	* pixel		* pixel
	** scanline - every second line made darker (emulates old CRT scanlines)		** scanline - every second line made darker (emulates old CRT scanlines)

Acid: /* global options */

2022-06-22T18:21:49Z

global options

← Older revision		Revision as of 18:21, 22 June 2022
Line 61:		Line 61:
	=== global options ===		=== global options ===

	This is submenu ~~for~~ global options (DVI modes, OSD timeouts)		This submenu has global options (DVI modes, OSD timeouts)

	* DVI mode		* DVI mode
	** pure DVI - pure DVI signal without audio (compatible with most old LCD 17" and 19" displays)		** pure DVI - pure DVI signal without audio (compatible with most old LCD 17" and 19" displays)
	** DVI with audio - adds audio packets to DVI signal which is not compatible with DVI, but usually recognised correctly by HDMI devices connected to Medusa via appropriate ~~cable~~.		** DVI with audio - adds audio packets to DVI signal which is not compatible with DVI, but usually recognised correctly by HDMI devices connected to Medusa via appropriate cables.
	* OSD timeouts		* OSD timeouts
	** main menu		** main menu

Acid: /* rgb only */

2022-06-22T18:20:09Z

rgb only

← Older revision		Revision as of 18:20, 22 June 2022
Line 52:		Line 52:
	[[File:sample_phase.png\|200px\|thumb\|sample phase]]		[[File:sample_phase.png\|200px\|thumb\|sample phase]]

	* sample phase - sets sample phase ~~inside~~ of pixel. Pixels have to pe sampled in "the middle of the pixel". When pixels are sampled "in between" then picture looks ~~blured~~ and often noisy. This option should be adjusted individually for every device connected to ~~medusa~~ - this is very important option !!!.		* sample phase - sets sample phase of pixel. Pixels have to pe sampled in "the middle of the pixel". When pixels are sampled "in between" then the picture looks blurry and often noisy. This option should be adjusted individually for every device connected to Medusa - this is a very important option !!!.
	* pixels/line - for all recognised modes this option shouldn't be adjusted - for all known computers this parameter is predefined in Medusa, but when you connect something that is not recognised ("unrecognised lo" or "unrecognised hi") you ~~may~~ set this option to improve picture quality.		* pixels/line - for all recognised modes this option shouldn't be adjusted - for all known computers this parameter is predefined in Medusa, but when you connect something that is not recognised ("unknown PAL", "unknown NTSC", "unrecognised lo" or "unrecognised hi") you can set this option to improve picture quality.
	* double res - doubles X resolution (practically only ~~good~~ for Amiga's "Super Hires")		* double res - doubles X resolution (practically useful only for Amiga's "Super Hires" modes)
	* auto levels - runs routine that tries to find best offset and gain for R, G and B signals - use when the picture is too dark or too light - usually it is automatically performed whenever you ~~first time~~ connect specific device, but ~~when~~ you have two cables for the same computer then after cable change you may need to run this manually.		* auto levels - runs a routine, that tries to find best offset and gain for R, G and B signals - use it, when the picture is too dark or too light - usually it is automatically performed whenever you connect a specific device for the first time, but if you have two cables for the same computer then after a cable change you may need to run this manually.
	* component mode - changes R,G,B to Y,Cr,Cb (Y on green, Cr on red and Cb on blue) - after ~~change mode~~ "auto levels" is always ~~rerun~~		* component mode - changes R,G,B to Y,Cr,Cb (Y on green, Cr on red and Cb on blue) - after changing this option "auto levels" is always re-run
	* fingerprint - Medusa recognises input devices using "fingerprint" mechanism. For each device there is predefined fingerprint in the firmware. But sometimes it may happen that your device is not recognised correctly, or it is not in ~~medusa~~ database at all. This option displays fingerprint parameters for currently connected device. ~~This~~ values ~~will~~ be ~~important~~ to improve devices detection and adding new ones.		* fingerprint - Medusa recognises input devices using "fingerprint" mechanism. For each device there is a predefined fingerprint in the firmware. But sometimes it may happen that your device is not recognised correctly, or it is not in Medusa's database at all. This option displays fingerprint parameters for currently connected device. These values may be used by Medusa developers to improve devices detection and adding new ones.

	=== global options ===		=== global options ===

Acid: /* rgb only */

2022-06-22T18:11:41Z

rgb only

← Older revision		Revision as of 18:11, 22 June 2022
Line 49:		Line 49:

	This submenu has options that are used only when picture is processed by RGB A/D converter (front LED is red, on OLED info says that source of signal is RGB "RGB: xxxxxxx")		This submenu has options that are used only when picture is processed by RGB A/D converter (front LED is red, on OLED info says that source of signal is RGB "RGB: xxxxxxx")

			[[File:sample_phase.png\|200px\|thumb\|sample phase]]

	* sample phase - sets sample phase inside of pixel. Pixels have to pe sampled in "the middle of the pixel". When pixels are sampled "in between" then picture looks blured and often noisy. This option should be adjusted individually for every device connected to medusa - this is very important option !!!.		* sample phase - sets sample phase inside of pixel. Pixels have to pe sampled in "the middle of the pixel". When pixels are sampled "in between" then picture looks blured and often noisy. This option should be adjusted individually for every device connected to medusa - this is very important option !!!.

Acid at 18:09, 22 June 2022

2022-06-22T18:09:49Z

Acid: /* filters */

2022-06-22T18:00:00Z

filters

← Older revision		Revision as of 18:00, 22 June 2022
Line 23:		Line 23:
	** 4096 colors - round all color values to 4096 color palette		** 4096 colors - round all color values to 4096 color palette
	* pixel		* pixel
	** scanline - every second line ~~makes~~ darker (emulates old CRT scanlines)		** scanline - every second line made darker (emulates old CRT scanlines)
	** pixel mode - every second line and every second column ~~makes~~ darker (emulates old LCD displays)		** pixel mode - every second line and every second column made darker (emulates old LCD displays)
	** noise - add noise to picture (emulates connecting to old TV sets)		** noise - add noise to picture (emulates connecting to old TV sets)
	** sl+noise - scanline + noise		** sl+noise - scanline + noise
	* smoothing - decreases noise. If difference between current pixel and previous is smaller than given value then pixel value is blended with previous pixel - makes picture more even and with less noise. Although you can set it from 0 to 255 using values higher than 10 is not recommended.		* smoothing - decreases noise. If difference between current pixel and previous is smaller than given value then pixel value is blended with previous pixel - makes picture more even and with less noise. Although you can set it from 0 to 255, using values higher than 10 is not recommended.
	* reset - reset all special filters to default values (smoothing to 0 and "no filter" for all other options)		* reset - reset all special filters to default values (smoothing to 0 and "no filter" for all other options)

Acid: /* rgb curves */

2022-06-22T12:00:22Z

rgb curves

← Older revision		Revision as of 12:00, 22 June 2022
Line 3:		Line 3:
	=== rgb curves ===		=== rgb curves ===

	This is submenu ~~with~~ options for ~~change~~ RGB curves. By changing ~~such~~ curves it is possible to change brightness, contrast, gamma etc.		This submenu has options for changing RGB curves. By changing these curves it is possible to change brightness, contrast, gamma etc.

	* brightness - change screen brightness from -100 to 100		* brightness - change screen brightness from -100 to 100

← Older revision		Revision as of 18:09, 22 June 2022
Line 14:		Line 14:
	=== filters ===		=== filters ===

	This is submenu ~~with~~ special picture filters such as green,amber mono monitor, negative, scanline, smoothing etc.		This submenu has special picture filters such as green, amber mono monitor, negative, scanline, smoothing etc.

	* color - mono monitor emulation with many variants (green,amber,cyan,sepia,red)		* color - mono monitor emulation with many variants (green,amber,cyan,sepia,red)
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	=== shift/size ===		=== shift/size ===

	This is submenu ~~with~~ options for moving picture left/right up/down and also for changing window size (you can think of it as an output resolution)		This submenu has options for moving picture left/right, up/down and also for changing window size (you can think of it as an output resolution)

	* xshift - move picture left and right (during movement picture may disappear for a moment - it is normal reaction of displaying device when something is ~~changeing~~)		* xshift - move picture left and right (during movement picture may disappear for a moment - it is a normal reaction of the displaying device when something is changing)
	* yshift - move picture up and down (same as above - during movement picture may disappear)		* yshift - move picture up and down (same as above - during movement picture may disappear)
	* dvi width - set display window to specific width (be aware that some displays do not accept all widths, so during changing from 720 to 800 ~~for example~~ screen may be black when values are in between - also every width change usually means sync lost, so it is better to change ~~this~~ values using OLED, not OSD)		* dvi width - set display window to specific width (be aware that some displays do not accept all widths, so during changing for example from 720 to 800 screen may be black when values are in between, also every width change usually means sync lost, so it is better to change these values using OLED, not OSD)
	* dvi height - set display window to specific height (same as above)		* dvi height - set display window to specific height (same as above)
	* dvi presets - beacuse usually we want to use well defined screen sizes there are presets for screen width and height. When ~~window~~ is too ~~high then~~ it is ~~set~~ to maximum possible ~~for given mode)~~		* dvi presets - beacuse usually we want to use well defined screen sizes, there are presets for screen width and height. When selected preset's height or width is too big for current input resolution, it is lowered to maximum possible value.
	** 1280x1024 (mainly for viking mode in MIST)		** 1280x1024 (mainly for viking mode in MIST)
	** 800x600 (whole screen in PAL modes - with all borders)		** 800x600 (whole screen in PAL modes - with all borders)
Line 48:		Line 48:
	=== rgb only ===		=== rgb only ===

	This is submenu ~~with~~ options when picture is processed by RGB A/D converter (front LED is red, on OLED info says that source of signal is RGB "RGB: xxxxxxx")		This submenu has options that are used only when picture is processed by RGB A/D converter (front LED is red, on OLED info says that source of signal is RGB "RGB: xxxxxxx")

	* sample phase - sets sample phase inside of pixel. Pixels have to pe sampled in "the middle of the pixel". When pixels are sampled "in between" then picture looks blured and often noisy. This option should be adjusted individually for every device connected to medusa - this is very important option !!!.		* sample phase - sets sample phase inside of pixel. Pixels have to pe sampled in "the middle of the pixel". When pixels are sampled "in between" then picture looks blured and often noisy. This option should be adjusted individually for every device connected to medusa - this is very important option !!!.