framebuffer [RzR's Wiki]

http://www.directfb.org , irc://irc.freenode.net/#DirectFB

file:/usr/src/linux/Documentation/fb/vesafb.txt * http://tldp.org/HOWTO/Framebuffer-HOWTO.html * http://home.tvd.be/cr26864/Linux/fbdev/ * file:/usr/share/doc/fbset/FAQ

[[VGA]]

sudo modprobe -v vga16fb # must be compiled

cat /proc/fb
0 VGA16 VGA

sudo cat /etc/X11/xorg.conf | modeline2fb > /etc/fb.modes

[[RzR]]'s tests

Tests done on my AmiloA Laptop on Debian :

Sat Sep  3 03:34:11 CEST 2005
Linux nrv 2.6.13-k7-amiloa #5 Tue Aug 30 20:47:34 CEST 2005 i686 GNU/Linux

modprobe radeonfb

lsmod | grep fb
radeonfb               88640  0
i2c_algo_bit            8840  1 radeonfb
i2c_core               17296  4 radeonfb,i2c_algo_bit,i2c_ali15x3,i2c_ali1535

find /lib/modules/`uname -r` -name "*fb*"
/lib/modules/2.6.13-k7-amiloa/kernel/drivers/video/aty/radeonfb.ko
/lib/modules/2.6.13-k7-amiloa/kernel/drivers/video/vfb.ko

Radeon

grep FB /usr/src/linux/.config
CONFIG_FB_RADEON_OLD=m
CONFIG_FB_RADEON=m
CONFIG_FB_RADEON_I2C=y

#rzr@nrv:linux/$ cat /proc/fb
0 ATI Radeon C6
1 VESA VGA

$ fbset -i # sudo apt-get install fbset

mode "1024x768-60"
  # D: 65.003 MHz, H: 48.365 kHz, V: 60.006 Hz
  geometry 1024 768 1024 768 8
  timings 15384 168 16 30 2 136 6
  hsync high
  vsync high
  rgba 8/0,8/0,8/0,0/0
endmode

Frame buffer device information:
  Name        : ATI Radeon C6
  Address     : 0xf8000000
  Size        : 33554432
  Type        : PACKED PIXELS
  Visual      : PSEUDOCOLOR
  XPanStep    : 8
  YPanStep    : 1
  YWrapStep   : 0
  LineLength  : 1024
  MMIO Address: 0xf0500000
  MMIO Size   : 16384
  Accelerator : ATI Radeon family

ToDo :

grep FB /usr/src/linux/.config
CONFIG_FB=y
CONFIG_FB_VGA16=m
# CONFIG_FB_VESA is not set
CONFIG_FB_RADEON_OLD=m
CONFIG_FB_RADEON=m
CONFIG_FB_RADEON_I2C=y
CONFIG_FB_VIRTUAL=m

grep FRAME /usr/src/linux/.config
CONFIG_FRAMEBUFFER_CONSOLE=m # fbcon ?
# CONFIG_FRAME_POINTER is not set

VESA

links2 works fine not mplayer, I am logging errors , warnings if it helps : http://rzr.online.fr/q/FrameBuffer

grep FB /usr/src/linux/.config
CONFIG_FB_VGA16=y
CONFIG_FB_VESA=y

# (*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (convergence integrated media GmbH)

cat /proc/fb
0 VESA VGA
1 VGA16 VGA

WebBrowser

sudo apt-get install links2 # [[Debian]]

links2 -g http://rzr.online.fr/q/FrameBuffer
   ---------------------- DirectFB v0.9.20 ---------------------
           (c) 2000-2002  convergence integrated media GmbH
           (c) 2002-2003  convergence GmbH
    -----------------------------------------------------------

(*) Single Application Core. (with MMX support) (2005-01-31 07:23)
(*) DirectFB/misc/memcpy: using MMXEXT optimized memcpy()
(*) DirectFB/InputDevice: Keyboard 0.9 (convergence integrated media GmbH)
(*) DirectFB/InputDevice: IMPS/2 Mouse (1) 0.9 (convergence integrated media GmbH)
(*) DirectFB/InputDevice: IMPS/2 Mouse (2) 0.9 (convergence integrated media GmbH)
(*) MMX detected and enabled
(*) DirectFB/GraphicsDevice: MMX Software Rasterizer 0.6 (convergence integrated media GmbH)
(===) DirectFB/core/fbdev: Panning display failed!===
  *-> Invalid argument
(*) DirectFB/Layer: Enabled 'FBDev Primary Layer'.
(===) DirectFB/core/fbdev: Panning display failed!===
  *-> Invalid argument

VideoPlayer

mplayer -vo directfb http://rzr.online.fr/docs/java/diet3d-nokia6630.mov 2>&1 >    ~/mplayer-log.txt

VDec: vo config request - 352 x 288 (preferred csp: Planar YV12)
DirectFB: Format query: Planar YV12
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Format query: Planar I420
DirectFB: Test format - layer 0 scale/pos 0
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [[scale]]
DirectFB: Format query: Planar YV12
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Format query: Planar I420
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Format query: Packed YUY2
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Format query: Packed UYVY
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Format query: BGRA
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
DirectFB: Format query: BGRA
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
DirectFB: Format query: BGRA
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
DirectFB: Format query: BGRA
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
DirectFB: Format query: BGRA
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
SwScaler: using unscaled Planar YV12 -> BGRA special converter
DirectFB: Format query: BGRA
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
VO: [[directfb]] 352x288 => 384x288 BGRA
DirectFB: Format query: BGRA
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
DirectFB: Config entered [[352x288]]
DirectFB: With requested format: BGRA
(=====)  *** CAUTION [[letting unprivileged IDirectFBDisplayLayer::GetSurface() call pass until cooperative level handling is finished]] *** ../../../src/display/idirectfbdisplaylayer.c (147)=====
DirectFB: Config - looking for suitable layer
DirectFB: Test format - layer 0 scale/pos 0
DirectFB: Test format - added layer 0 scale/pos 0
DirectFB: Config - layer 0
DirectFB: Config - switching layer to exclusive mode
DirectFB: Layer reports format:201002
DirectFB: Desired pixelformat: 401804
DirectFB: Config - changing layer configuration (format)
(===) DirectFB/core/fbdev: Panning display failed!===
  *-> Invalid argument
(=====)  *** CAUTION [[setting new configuration failed]] *** ../../../src/core/layers.c (865)=====
(===) DirectFB/core/fbdev: Panning display failed!===
  *-> Invalid argument
DirectFB: Double buffering is active
DirectFB: Requested field parity: Don't care
DirectFB: Config - flipping = 1
DirectFB: Config - surface size = 640x480
DirectFB: Frame is active.
DirectFB: Config finished [[384x288]] - [[352x288]]
New_Face failed. Maybe the font path is wrong. 2 ??% ??% ??,?% 0 0 86%
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
DirectFB: Uninit entered0.004 ct:  0.064  32/ 32  9% 45%  5.3% 0 0 67%
DirectFB: Releasing frame
DirectFB: Releasing layer
(===) DirectFB/core/fbdev: Panning display failed!===
  *-> Invalid argument
DirectFB: Releasing primary
DirectFB: Uninit done.

[[OpenSource]]

My test of direct fb :

http://directfb.org/index.php?path=Main%2FSupport%2FGraphics

ed2k:|file|DirectFB-0.9.22.tar.gz|1977888|e77a9fcbbc86800fcfac9cebe7050046| ./configure –prefix=/usr/local/opt/directfb-0.9.22 && make && make install # Making install in include # make1: Entering directory `/tmp/DirectFB-0.9.22/include' # make1: * No rule to make target `install'. Stop. make -k install # now testing /usr/local/opt/directfb-0.9.22/bin/dfbinfo # # ———————- DirectFB v0.9.22 ——————— # © 2000-2002 convergence integrated media GmbH # © 2002-2004 convergence GmbH # ———————————————————– # # (*) DirectFB/Core: Single Application Core. (2005-09-03 01:04) # (*) Direct/Memcpy: Using SSE optimized memcpy() # (*) Direct/Thread: Running 'VT Switcher' (CRITICAL, 21799)… # (*) Direct/Thread: Running 'PS/2 Input' (INPUT, 21804)… # (==== * UNIMPLEMENTED fusion_reactor_set_lock *** 802===== # (*) DirectFB/Input: IMPS/2 Mouse 1.0 (Convergence GmbH) # (*) Direct/Thread: Running 'Linux Input' (INPUT, 21805)… # (*) DirectFB/Input: AT Translated Set 2 keyboard (1) 0.1 (convergence integrated media GmbH) # (*) Direct/Thread: Running 'Linux Input' (INPUT, 21806)… # (*) DirectFB/Input: PS/2 Mouse (2) 0.1 (convergence integrated media GmbH) # (*) Direct/Thread: Running 'Linux Input' (INPUT, 21807)… # (*) DirectFB/Input: AlpsPS/2 ALPS GlidePoint (3) 0.1 (convergence integrated media GmbH) # (*) Direct/Thread: Running 'Keyboard Input' (INPUT, 21808)… # (*) DirectFB/Input: Keyboard 0.9 (convergence integrated media GmbH) # (*) DirectFB/Genefx: MMX detected and enabled # (*) DirectFB/Graphics: MMX Software Rasterizer 0.6 (convergence integrated media GmbH) # (*) DirectFB/Core/WM: Default 0.2 (Convergence GmbH) # Screen (00) FBDev Primary Screen (primary screen) # Caps: VSYNC POWER_MANAGEMENT # # Layer (00) FBDev Primary Layer (primary layer) # Type: GRAPHICS # Caps: SURFACE BRIGHTNESS CONTRAST SATURATION # Input (01) IMPS/2 Mouse (primary mouse) # Type: MOUSE # Caps: AXES BUTTONS # Input (00) AT Translated Set 2 keyboard (primary keyboard) # Type: KEYBOARD # Caps: KEYS # Input (10) PS/2 Mouse # Type: MOUSE # Caps: AXES BUTTONS # Input (11) AlpsPS/2 ALPS GlidePoint # Type: MOUSE # Caps: AXES BUTTONS # Input (12) Keyboard # Type: KEYBOARD # Caps: KEYS === radeonfb=== # dmesg | grep “fb:” # radeonfb: Retreived PLL infos from BIOS # radeonfb: Reference=191.86 MHz (RefDiv=426) Memory=160.00 Mhz, System=133.00 MHz # radeonfb: PLL min 12000 max 35000 # radeonfb: Monitor 1 type LCD found # radeonfb: Monitor 2 type no found # radeonfb: panel ID string: 1024×768 # radeonfb: detected LVDS panel size from BIOS: 1024×768 # radeonfb: Dynamic Clock Power Management enabled # radeonfb (0000:01:05.0): ATI Radeon C6 # vesafb: cannot reserve video memory at 0xf8000000 # vesafb: framebuffer at 0xf8000000, mapped to 0xdf900000, using 3072k, total 32704k # vesafb: mode is 1024x768x16, linelength=2048, pages=20 # vesafb: protected mode interface info at c000:5137 # vesafb: scrolling: redraw # vesafb: Truecolor: size=0:5:6:5, shift=0:11:5:0 # fb1: VESA VGA frame buffer device # kobject_register failed for radeonfb (-17) # <de86600f> radeonfb_old_init+0xf/0x13 radeonfb ===MISC=== PCI: Unable to reserve mem region #1:4000000@f8000000 for device 0000:01:05.0 radeonfb (0000:01:05.0): cannot reserve PCI regions. Someone already got them? ACPI: PCI interrupt for device 0000:01:05.0 disabled radeonfb: probe of 0000:01:05.0 failed with error -16 === Kernel config=== grep FB /usr/src/linux/.config CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_SOFT_CURSOR=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_VGA16=m CONFIG_FB_VESA=y CONFIG_FB_VIRTUAL=m CONFIG_FRAMEBUFFER_CONSOLE=m zcat /proc/config.gz | grep -v “^#” | grep FB CONFIG_FB=y CONFIG_FB_CFB_FILLRECT=y CONFIG_FB_CFB_COPYAREA=y CONFIG_FB_CFB_IMAGEBLIT=y CONFIG_FB_SOFT_CURSOR=y CONFIG_FB_MODE_HELPERS=y CONFIG_FB_VGA16=m CONFIG_FB_VESA=y CONFIG_FB_RADEON_OLD=m CONFIG_FB_RADEON=m CONFIG_FB_RADEON_I2C=y CONFIG_FB_VIRTUAL=m ===French=== http://kafka.fr.free.fr/articles/divers/prog-framebuffer/prog-framebuffer.html