Hi,
I am new on DirectFB, and hope someone can help me.
I searched on this forum and on the internet for a few days, but until
now I did not made work a simple (I believe...) POC.
I want to play a video (file or stream), and on top of it I want to
show some translucent graphics.
I tried to modify the df_window (Directfb-examples). I created the two
layers, one window one each layer, the dfblogo appears ok, I can hear the
sound, but no video behind the logo.
I also have readed the "DirectFB Overview (v0.2 for DirectFB 0.9.21)",
that has an example of a layer/window configuration (page 7), but I don´t know
how to make this example turn into code and work. The resources I am using to
learn are: the pdf I mentioned, the code of the examples, the API Reference,
and the directfb-users mail list. Does it exist any other resource ? Any book ?
Below some output of my test.
Best regards,
Hugo Lavalle
I have the following output from dfb->EnumDisplayLayers :
Layer 0:
- Has a surface.
- Supports blending based on alpha channel.
- Brightness can be adjusted.
- Contrast can be adjusted.
- Saturation can be adjusted.
Layer 1:
- Has a surface.
- Supports destination color keying.
- Can deinterlace interlaced video for progressive display.
- Supports blending based on global alpha factor.
- Can be positioned on the screen.
- Brightness can be adjusted.
- Contrast can be adjusted.
- Hue can be adjusted.
- Saturation can be adjusted.
I am using radeonfb, and "fbset -i" returns the following:
mode "1024x768-60"
# D: 65.003 MHz, H: 48.365 kHz, V: 60.006 Hz
geometry 1024 768 1024 768 8
timings 15384 160 24 29 3 136 6
hsync high
vsync high
rgba 8/0,8/0,8/0,0/0
endmode
Frame buffer device information:
Name : ATI Radeon Lf
Address : 0xe8000000
Size : 33554432
Type : PACKED PIXELS
Visual : PSEUDOCOLOR
XPanStep : 8
YPanStep : 1
YWrapStep : 0
LineLength : 1024
MMIO Address: 0xfcff0000
MMIO Size : 16384
Accelerator : ATI Radeon family
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