Difference between revisions of "SDL Development"

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(/etc/fb.modes)
m (SDL installation)
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==SDL installation==
 
==SDL installation==
  
Launch buildroot configuration
+
* Launch buildroot configuration
 
  # make menuconfig
 
  # make menuconfig
 
and choose SDL package in:<br>
 
and choose SDL package in:<br>
Line 7: Line 7:
 
and save your configuration
 
and save your configuration
  
Then regenerate your rootfs
+
* Then regenerate your rootfs
 
  # make
 
  # make
 
and reflash it on your board
 
and reflash it on your board
  
Our SDL version is using the FrameBuffer interface and so it's very important to have a ''/etc/fb.modes'' file updated with the framebuffer parameters supported by your configuration (otherwise SDL try to use the VESA parameters which are perturbating i.MXL LCD controller).
+
Our SDL version is using the FrameBuffer interface and so '''it's very important to have a ''/etc/fb.modes'' file updated with the framebuffer parameters supported by your configuration''' (otherwise SDL try to use the VESA parameters which are perturbating i.MXL LCD controller).
  
For Sharp LQ057 put in ''/etc/fb.modes'':
+
For example for the Sharp LQ057 activate in ''/etc/fb.modes'':
 
  mode "320x240-176"
 
  mode "320x240-176"
 
     # D: 16.000 MHz, H: 43.836 kHz, V: 176.047 Hz
 
     # D: 16.000 MHz, H: 43.836 kHz, V: 176.047 Hz
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     rgba 5/11,6/5,5/0,0/0
 
     rgba 5/11,6/5,5/0,0/0
 
  endmode
 
  endmode
 +
By default the Armadeus LCD (Microtips) parameters are used in ''/etc/fb.modes''.
  
 
==Development==
 
==Development==
  
 
Take a look at ''armadeus/target/demos/armanoid/'' sources in your SVN view
 
Take a look at ''armadeus/target/demos/armanoid/'' sources in your SVN view

Revision as of 08:33, 8 May 2007

SDL installation

  • Launch buildroot configuration
# make menuconfig

and choose SDL package in:
Menuconfig package.png
and save your configuration

  • Then regenerate your rootfs
# make

and reflash it on your board

Our SDL version is using the FrameBuffer interface and so it's very important to have a /etc/fb.modes file updated with the framebuffer parameters supported by your configuration (otherwise SDL try to use the VESA parameters which are perturbating i.MXL LCD controller).

For example for the Sharp LQ057 activate in /etc/fb.modes:

mode "320x240-176"
   # D: 16.000 MHz, H: 43.836 kHz, V: 176.047 Hz
   geometry 320 240 320 240 16
   timings 62500 9 27 0 7 9 2
   rgba 5/11,6/5,5/0,0/0
endmode

By default the Armadeus LCD (Microtips) parameters are used in /etc/fb.modes.

Development

Take a look at armadeus/target/demos/armanoid/ sources in your SVN view