docs/openvg.html

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  11 <H1>OpenVG State Tracker</H1>
  12
  13 <p>
  14 The current version of the OpenVG state tracker implements OpenVG 1.0.
  15 </p>
  16 <p>
  17 More informations about OpenVG can be found at
  18 <a href="http://www.khronos.org/openvg/" target="_parent">
  19 http://www.khronos.org/openvg/</a> .
  20 </p>
  21 <p>
  22 The OpenVG state tracker depends on the Gallium architecture and a working EGL implementation.
  23 </p>
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  25
  26 <h2>Building the library</h2>
  27 <ol>
  28 <li>Build Mesa3D with Gallium3D. Any build that builds Gallium3D libraries and EGL will suffice</li>
  29 <li>cd src/gallium/state_trackers/vega; make</li>
  30 <li>The last step will build libOpenVG library. You can add the libdir to LD_LIBRARY_PATH or install libOpenVG</li>
  31 </ol>
  32
  33 <h3>Sample build</h3>
  34 A sample build looks as follows:
  35 <pre>
  36   make linux-x86-64-debug
  37   cd src/gallium/state_trackers/vega
  38   make
  39   cd ../../../..
  40   export LD_LIBRARY_PATH=$PWD/lib64
  41   export EGL_DRIVER="egl_softpipe"
  42 </pre>
  43
  44 <h2>OpenVG Demos</h2>
  45
  46 <p>
  47 To build the OpenVG demos:
  48 </p>
  49 <pre>
  50   cd progs/openvg
  51   make
  52 </pre>
  53 <p>
  54 To run a demo:
  55 </p>
  56 <pre>
  57   cd openvg/demos
  58   ./lion
  59 </pre>
  60
  61
  62 <h2>Notes</h2>
  63 <ul>
  64 <li>EGL_DRIVER environmental variable: forces usage of a specific EGL driver. Unless you force egl_softpipe the implementation will look for a DRI hardware accelerate driver and unless you have a Gallium driver that supports it, you'll see crashes</li>
  65 </ul>
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