Reported by blackosx, Jul 13, 2011
Chameleon currently uses two screens for the GUI. The first being the 'Timeout' screen used for showing the default boot device, along with the 'countdown' text and progress bar. The second being the 'Device Selection' screen where the user can choose which device to boot, view the menu and type boot options. Device graphics are drawn differently on the 'Timeout' screen compared against the 'Device Selection' screen, with the 'Timeout' screen showing them correctly and shows them as they look in Photoshop. However, when the same image is drawn on the device selection screen it's 'blended' differently which results in the transparent pixels effectively disappearing. This affects any .png drawn within the 'Devicelist Window ' (taken from gui_t struct in /i386/boot2/gui.h) boundary in the 'Device Selection' screen. So that includes the device graphics and the font .png used for the device names. To demonstrate this, I have a created a test theme (see attached). The lowest resolution to use it with should be 1024x768 and I recommend using the timeout boot option set to a high value, say 30 to give time to read the screen. Other posted screenshot examples: http://forum.voodooprojects.org/index.php/topic,1432.msg7883.html#msg 7883 http://forum.voodooprojects.org/index.php/topic,1432.msg7888.html#msg 7888 The problem here mainly rears it's head because Chameleon uses both the 'Timeout' and 'Device Selection' screen. Maybe if the 'Timeout' screen was no longer used then this problem wouldn't be noticed? (the graphics would still be drawn incorrectly on the 'Device Selection' screen, but there wouldn't be anything to compare them against (though it would be preferable if this issue could be fixed and the graphics appear as intended.)). This post http://forum.voodooprojects.org/index.php/topic,1904.0.html might be on the right lines suggesting not using the 'Timeout' screen, but instead drawing the progress bar underneath the default device icon on the 'Device Selection' screen. Maybe a possible option if the GUI were ever to be redesigned / re-thought?
Comment 1 by blackosx, Jul 13, 2011
The theme didn't attach. Here it is.
- alpha_mask_blend_test.zip - 701.74 kB
Comment 2 by Evan Lojewski, Jul 13, 2011
Right now it looks like the order that blend() is called incorrect. I'll see if there is a good way to work around that (rather than trying to swap the order, which would take a lot of work...)
Comment 3 by blackosx, Jul 13, 2011
Thanks for looking Mek. I'll keep my fingers crossed in the hope you can solve it. :)
Comment 4 by Cosmosis Jones, Jul 18, 2011
this is probably going to have to suck up w/ the gui rewrite
Comment 5 by Cosmosis Jones, May 8, 2012