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James R 93ff380730 Clear g_dc each frame 
I was running into a memcpy of overlapping memory regions
in R_RenderMaskedSegRange.

- This is because of the reallocation of lightlists, which
  uses Z_Frame_Alloc.
- The memory pool that Z_Frame_Alloc draws from is cleared
  each frame.
- g_dc was not cleared though, so when the lightlists were
  reallocated, it'd try to copy from invalidated pointers.
- Access to invalid pointers within the memory pool does
  not cause a segfault directly (because the memory pool
  is allocated once). However, a memcpy involving such an
  invalid pointer leads to overlap, which may cause memory
  corruption.
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README.md

SRB2Kart

SRB2Kart is a kart racing mod based on the 3D Sonic the Hedgehog fangame Sonic Robo Blast 2, based on a modified version of Doom Legacy.

Dependencies

  • NASM (x86 builds only)
  • SDL2 (Linux/OS X only)
  • SDL2-Mixer (Linux/OS X only)
  • libupnp (Linux/OS X only)
  • libgme (Linux/OS X only)
  • libopenmpt (Linux/OS X only)

Compiling

See SRB2 Wiki/Source code compiling. The compiling process for SRB2Kart is largely identical to SRB2.

Disclaimer

Kart Krew is in no way affiliated with SEGA or Sonic Team. We do not claim ownership of any of SEGA's intellectual property used in SRB2.