Epson emulation: colors swapped

thomas · 02 December 2012, 15:10

WinUAE 2.5.0 B28
Parallel port set to PDF24 printer (don't want to waste paper)
Type set to Epson 48pin printer
WB3.1
Printer set to EpsonQ
PrinterGfx set to color; depth = 2

First try Wordworth7
Second try Multiview

Both print red and blue swapped. Green is ok.

The same happens with MS XPS printer, too.

Toni Wilen · 03 December 2012, 16:47

Colors are same as in Epson ESC-code spec document.

Code:

ESC r 0 Black
ESC r 1 Magenta
ESC r 2 Cyan
ESC r 3 Violet
ESC r 4 Yellow
ESC r 5 Red
ESC r 6 Green

I am quite sure I tested all colors but perhaps I used some other driver.

thomas · 11 December 2012, 10:16

Could you test again?

I tried 2.5.1b1 on a different computer and it also prints red/blue swapped on MS XPS printer.

BTW, printing on a real printer (Samsung CLP-315 connected via ethernet) causes a blue screen on Vista 32bit. PAGE_FAULT_IN_NONPAGED_AREA in win32k.sys

Toni Wilen · 11 December 2012, 10:39

Nothing has changed. Emulation does what Epson documentation says, I need to do more testing to solve this problem. I am not just going to switch it without knowing the original reason.

Blue screen = hardware or driver bug.

Toni Wilen · 11 December 2012, 20:00

Solved.

Apparently I only tested color printing using png output. Printing to Windows Device Context had swapped colors because I forgot that Windows uses BGR, not RGB..

thomas · 11 December 2012, 20:30

Quote:

Solved.

Great, thank you very much.

Quote:

Apparently I only tested color printing using png output.

How do you print to PNG? Is this an option on the I/O ports panel (or elsewhere in the configuration)? If not, could you make it one?

Toni Wilen · 11 December 2012, 20:33

-pngprint command line option. (It is mainly testing option, not sure if it still works..)

02 December 2012, 15:10	#1
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 6,987	Epson emulation: colors swapped WinUAE 2.5.0 B28 Parallel port set to PDF24 printer (don't want to waste paper) Type set to Epson 48pin printer WB3.1 Printer set to EpsonQ PrinterGfx set to color; depth = 2 First try Wordworth7 Second try Multiview Both print red and blue swapped. Green is ok. The same happens with MS XPS printer, too. Attached Thumbnails

03 December 2012, 16:47	#2
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,507	Colors are same as in Epson ESC-code spec document. Code: ESC r 0 Black ESC r 1 Magenta ESC r 2 Cyan ESC r 3 Violet ESC r 4 Yellow ESC r 5 Red ESC r 6 Green I am quite sure I tested all colors but perhaps I used some other driver.

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11 December 2012, 10:16	#3
thomas Registered User Join Date: Jan 2002 Location: Germany Posts: 6,987	Could you test again? I tried 2.5.1b1 on a different computer and it also prints red/blue swapped on MS XPS printer. BTW, printing on a real printer (Samsung CLP-315 connected via ethernet) causes a blue screen on Vista 32bit. PAGE_FAULT_IN_NONPAGED_AREA in win32k.sys

11 December 2012, 10:39	#4
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,507	Nothing has changed. Emulation does what Epson documentation says, I need to do more testing to solve this problem. I am not just going to switch it without knowing the original reason. Blue screen = hardware or driver bug.

11 December 2012, 20:00	#5
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,507	Solved. Apparently I only tested color printing using png output. Printing to Windows Device Context had swapped colors because I forgot that Windows uses BGR, not RGB..

11 December 2012, 20:33	#7
Toni Wilen WinUAE developer Join Date: Aug 2001 Location: Hämeenlinna/Finland Age: 49 Posts: 26,507	-pngprint command line option. (It is mainly testing option, not sure if it still works..)

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