README.DirectFB
author Holmes Futrell
Fri, 15 Aug 2008 00:46:58 +0000
branchgsoc2008_iphone
changeset 2427 32b9909db651
parent 2226 0e70b4b8cf84
child 2791 8133d1d278da
permissions -rw-r--r--
changed macro MAX_G_FORCE to SDL_IPHONE_MAX_GFORCE and moved it to the SDL_config_iphoneos.h file. This should allow users to convert between the Sint16 returned by polling the joystick and units of g-force, which better describe what is going on with the iPhone (and are what the iPhone OS actually gives you). This conversion wouldn't be necessary except that we'd need floating point to store everything as g-force.
     1 SDL on DirectFB
     2 
     3 Supports:
     4 
     5 - Hardware YUV overlays
     6 - OpenGL - software only
     7 - 2D/3D accelerations (depends on directfb driver)
     8 
     9 What you need:
    10 
    11 DirectFB 1.0.0 - required
    12 Kernel-Framebuffer support: required: vesafb, radeonfb .... 
    13 Mesa 7.0.x	   - optional for OpenGL
    14 
    15 As of this writing 20070810 you need to pull Mesa from git and do the following:
    16 
    17 ------------------------
    18 cd mesa 
    19 make linux-directfb
    20 make
    21 
    22 echo Installing - pleaser enter sudo pw.
    23 
    24 sudo make install INSTALL_DIR=/usr/local/dfb_GL
    25 cd src/mesa/drivers/directfb
    26 make
    27 sudo make install INSTALL_DIR=/usr/local/dfb_GL
    28 ------------------------
    29 
    30 To run the SDL - testprograms:
    31 
    32 export SDL_VIDEODRIVER=directfb
    33 export LD_LIBRARY_PATH=/usr/local/dfb_GL/lib
    34 export LD_PRELOAD=/usr/local/dfb_GL/libGL.so.7
    35 
    36 ./testgl
    37 
    38 To use hardware accelerated YUV-overlays for YUV-textures, use:
    39 
    40 export SDL_DIRECTFB_YUV_DIRECT=1
    41 
    42 This is disabled by default. It will only support one concurrent 
    43 overlay and may behave strange if not used with SDL_CreateYUvOverlay
    44 from SDLcompat.c. 
    45