kc3-lang/SDL/docs/README-directfb.md

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  Date : 2023-02-28T12:56:01
  

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disable-module=joystick
disable-module=cle266
disable-module=cyber5k
no-linux-input-grab

export SDL_DIRECTFB_X11_CHECK=0

export SDL_DIRECTFB_LINUX_INPUT=0

export SDL_DIRECTFB_YUV_DIRECT=1

export SDL_DIRECTFB_YUV_UNDERLAY=1

export SDL_DIRECTFB_WM=1

/usr/share/fonts/truetype/freefont/FreeSans.ttf

git clone git://anongit.freedesktop.org/git/mesa/mesa
cd mesa
git checkout 2c9fdaf7292423c157fc79b5ce43f0f199dd753a

# Directories
SRC_DIRS     = mesa glu
GLU_DIRS     = sgi
DRIVER_DIRS  = directfb
PROGRAM_DIRS =

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

export SDL_VIDEODRIVER=directfb
export LD_LIBRARY_PATH=/usr/local/dfb_GL/lib
export LD_PRELOAD=/usr/local/dfb_GL/libGL.so.7

./testgl

Source

• docs/README-directfb.md

• DirectFB
  ========
  
  Supports:
  
  - Hardware YUV overlays
  - OpenGL - software only
  - 2D/3D accelerations (depends on directfb driver)
  - multiple displays
  - windows
  
  What you need:
  
  * DirectFB 1.0.1, 1.2.x, 1.3.0
  * Kernel-Framebuffer support: required: vesafb, radeonfb ....
  * Mesa 7.0.x	   - optional for OpenGL
  
  The `/etc/directfbrc` file should contain the following lines to make
  your joystick work and avoid crashes:
  
  ```
  disable-module=joystick
  disable-module=cle266
  disable-module=cyber5k
  no-linux-input-grab
  ```
  
  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
  ```
  
  To use hardware accelerated YUV-overlays for YUV-textures, use:
  
  ```
  export SDL_DIRECTFB_YUV_DIRECT=1
  ```
  
  This is disabled by default. It will only support one
  YUV texture, namely the first. Every other YUV texture will be
  rendered in software.
  
  In addition, you may use (directfb-1.2.x)
  
  ```
  export SDL_DIRECTFB_YUV_UNDERLAY=1
  ```
  
  to make the YUV texture an underlay. This will make the cursor to
  be shown.
  
  Simple Window Manager
  =====================
  
  The driver has support for a very, very basic window manager you may
  want to use when running 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
  ```
  
  OpenGL Support
  ==============
  
  The following instructions will give you *software* OpenGL. However this
  works at least on all directfb supported platforms.
  
  As of this writing 20100802 you need to pull Mesa from git and do the following:
  
  ```
  git clone git://anongit.freedesktop.org/git/mesa/mesa
  cd mesa
  git checkout 2c9fdaf7292423c157fc79b5ce43f0f199dd753a
  ```
  
  Edit `configs/linux-directfb` so that the Directories-section looks like this:
  
  ```
  # Directories
  SRC_DIRS     = mesa glu
  GLU_DIRS     = sgi
  DRIVER_DIRS  = directfb
  PROGRAM_DIRS =
  ```
  
  Then do the following:
  
  ```
  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
  ```
  

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