Advanced frame buffer compression

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2020年1月2日 (四) 17:55free6d1823（讨论 | 贡献）的版本

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Supported pixel formats: 

*R8
*RGB 565
*RGB 888
*RG88
*RGBA4444
*RGBA5551
*RGBA8888
*RGBA10-10-10-2
*8-bit YUV420,YUV422
*10-bit YUV420, YUV422

Header buffer: 128bits. 128 bytes aligned.
Body buffer: 

 size same as uncompressed.
 = no. superblocks * size of uncompressed superblock
 header+offse= body address
 offset = 32bit (4GB) for RGBYUV422
          28bit (268MB) for YUV420

Frame payload:

  • Packed mode
  • sparse mode
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