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README.DirectFB

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SDL on DirectFB
Supports:
- Hardware YUV overlays
- OpenGL - software only
- 2D/3D accelerations (depends on directfb driver)
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- multiple displays
- windows
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DirectFB 1.0.1, 1.2.x, 1.3.0
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Kernel-Framebuffer support: required: vesafb, radeonfb ....
Mesa 7.0.x - optional for OpenGL
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This file should contain the following lines to make
your joystick work and avoid crashes:
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------------------------
disable-module=joystick
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disable-module=cle266
disable-module=cyber5k
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------------------------
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To disable to use x11 backend when DISPLAY variable is found use
export SDL_DIRECTFB_X11_CHECK=0
To disable the use of linux input devices, i.e. multimice/multikeyboard support,
use
export SDL_DIRECTFB_LINUX_INPUT=0
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To use hardware accelerated YUV-overlays for YUV-textures, use:
export SDL_DIRECTFB_YUV_DIRECT=1
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This is disabled by default. It will only support one
YUV texture, namely the first. Every other YUV texture will be
rendered in software.
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In addition, you may use (directfb-1.2.x)
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export SDL_DIRECTFB_YUV_UNDERLAY=1
to make the YUV texture an underlay. This will make the cursor to
be shown.
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Simple Window Manager
=====================
The driver has support for a very, very basic window manager you may
want to use when runnning with "wm=default". Use
export SDL_DIRECTFB_WM=1
to enable basic window borders. In order to have the window title rendered,
you need to have the following font installed:
/usr/share/fonts/truetype/freefont/FreeSans.ttf
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OPENGL Support
==============
As of this writing 20070810 you need to pull Mesa from git and do the following:
------------------------
cd mesa
make linux-directfb
make
echo Installing - please enter sudo pw.
sudo make install INSTALL_DIR=/usr/local/dfb_GL
cd src/mesa/drivers/directfb
make
sudo make install INSTALL_DIR=/usr/local/dfb_GL
------------------------
To run the SDL - testprograms:
export SDL_VIDEODRIVER=directfb
export LD_LIBRARY_PATH=/usr/local/dfb_GL/lib
export LD_PRELOAD=/usr/local/dfb_GL/libGL.so.7
./testgl