Mercurial > sdl-ios-xcode
comparison README.DirectFB @ 2226:0e70b4b8cf84
Date: Sat, 11 Aug 2007 02:03:16 +0200 (CEST)
From: couriersud arcor.de
To: slouken@libsdl.org
Subject: Directfb driver for SDL1.3
Hi,
the attachment contains a patch for a SDL1.3 directfb driver. It supports:
- Renderer "directfb":
Hardware acceleration as supported by the underlying directfb driver. With a
radeon X850, testsprite2 runs at 50% to 70% of OpenGL (X11, dri) performance.
Also supports hardware accelerated yuv overlays. This must be enabled by sett
ing:
export SDL_DIRECTFB_YUV_DIRECT=1
- Renderer "opengl"
Supports software opengl using mesa opengl (make linux-directfb).
Some more information may be found in README.DirectFB
There will certainly still be some bugs, and there is some debug code around.
When I find some time, I will compile against directfb-0.9.25 as distributed
with ubuntu 7.04.
The diff also contains a fix for SDL_LockYUVOverlay fixing a bug in *pixels
and pitches initialization.
Kind regards,
couriersud
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 11 Aug 2007 21:51:19 +0000 |
| parents | |
| children | 8133d1d278da |
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| 2225:3bca1b7ca25b | 2226:0e70b4b8cf84 |
|---|---|
| 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 |