[cadcdev-svn-commits] [SCM] branch skmp_pvr_bg_fix created. v2.0.0-1475-ge0b52628

[falcovorbis <fal...@us...>]

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The branch, skmp_pvr_bg_fix has been created
        at  e0b526286e4e8cd83a4459610b3cc3718cdf5ad7 (commit)

- Log -----------------------------------------------------------------
commit e0b526286e4e8cd83a4459610b3cc3718cdf5ad7
Author: Falco Girgis <gyr...@gm...>
Date:   Tue Aug 6 17:42:48 2024 -0500

    Fixed overflow with writing pvr bg plane.
    
    - skmp (correctly) reported that our little loop to copy the internally
      populated pvr_bkg_poly_t polygon (which gets color info from
    pvr_set_bg_color()) was looping too far.
        * structure is only 60 bytes, we looped for 64 and then wrote
          another word even beyond that.
    - swapped implementation to use memcpy() based on sizeof(pvr_bkg_poly_t)
      which is safer, and is smart enough to do per-word operations when
    they are valid (not here, lolz).
    - removed final vrl[0x11] = 0 assignment, as it clearly wasn't
      necessary and doesn't appear to even be doing anything useful at-all.
    The BG polygon types are special and don't need end-of-list flags, and
    interpolate the 4th vertex, more like PVR sprites.

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