But I still confused. This is my steps to use SetVideoMode
1, initialize video mode to 1920 x 1080
2, initialize osd (or frame buffer)
3, create DFB
4, create the primary surface.
5, blit an image to primary surface.
6, initialize video mode to 1280 x 720
7, call SetVideoMode to set primary surface to 1280 x 720
8, blit the image to primary surface again.
My questions:
1, If in the primary surface is not only an image, but more complex UI.
How can it be displayed immediately?
2, Does it mean I have to hold a surface to prepare all the UI, and blit
it to primary when needed? It's not make sense, because primary can be a
double buffer surface and always blit the changing to the back buffer
Thanks for your comments.
Regards!
Justin
On 2010-2-9 8:53, Justin Hou wrote:
Hi, Niels,
Oh, I get it. Thanks.
I'm working on an embedded system. If it works, I could ask the
system guys create this file.
Regards.
-Justin
On 2010-2-8 21:56, Niels Roest wrote:
Hi Justin,
/etc/fb.modes is not part of DirectFB, but of the generic framebuffer
framework of linux.
on my system I can do "man fb.modes" and get an explanation of the
contents.
Greets
Niels
Justin Hou wrote:
Hi, guys,
I'm trying to use SetVideoMode interface, to change the video
mode dynamically, but failed. After some tracing, I found a file
named /etc/fb.modes is needed. I think I should create this file and
describe what kind of modes my chip supports.
Could someone give me a simple about this file?
Thanks very much!
-Justin
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