Re: [android-developers] Android renders RGB values wrong.

2011-05-14 Thread David Turner
On Mon, Apr 18, 2011 at 5:48 PM, Andrew Huang proelited...@gmail.comwrote:

 Specify a RGB, i.e, color name=test_color#ff292728/color.
 Use the a Color Meter tool on Windows or Mac to sample the color in
 the Layout Preview screen. You'll see that it renders the correct
 value of 292728.

 Sampling the same color in the emulator would return a different
 value, #282329.

 The emulator emulates a 16-bit framebuffer, so this is not really
unexpected. Note that the system does implement dithering though, but there
will still be issues like that due to the reduced color resolution.

Generally speaking, many devices out there don't have a screen that don't
have the color resolution and gammut of a high-end desktop screen.
So don't expect real 24-bit support on real hardware.


 This is causing us some serious problems with our graphics (i.e.
 images are not correctly blending with the background),


I would recommend trying to achieve what you're aiming at differently. E.g.
using transparent images and alpha-blending.


 so we would
 like to understand what's going on. My searches have turned up nothing
 so far. If anyone has a deeper understanding of how colors are render,
 we would greatly appreciate the help.

 --
 You received this message because you are subscribed to the Google
 Groups Android Developers group.
 To post to this group, send email to android-developers@googlegroups.com
 To unsubscribe from this group, send email to
 android-developers+unsubscr...@googlegroups.com
 For more options, visit this group at
 http://groups.google.com/group/android-developers?hl=en


-- 
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en

[android-developers] Android renders RGB values wrong.

2011-04-20 Thread Andrew Huang
Specify a RGB, i.e, color name=test_color#ff292728/color.
Use the a Color Meter tool on Windows or Mac to sample the color in
the Layout Preview screen. You'll see that it renders the correct
value of 292728.

Sampling the same color in the emulator would return a different
value, #282329.

This is causing us some serious problems with our graphics (i.e.
images are not correctly blending with the background), so we would
like to understand what's going on. My searches have turned up nothing
so far. If anyone has a deeper understanding of how colors are render,
we would greatly appreciate the help.

-- 
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en