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| author | Nebuleon Fumika | 2012-12-21 03:50:10 -0500 |
|---|---|---|
| committer | Nebuleon Fumika | 2012-12-21 03:50:10 -0500 |
| commit | a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0 (patch) | |
| tree | 6bc433422db602b974a01dffbfc5ce5d84afc578 /source/ppu.h | |
| parent | 3972512b2a5c25236ea3ba586621dba6e5b56361 (diff) | |
| download | snes9x2005-a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0.tar.gz snes9x2005-a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0.tar.bz2 snes9x2005-a0d0c5e7a5bdc396b4c370a750273b6e3b963bb0.zip | |
Eliminate the latency of button press recognition, which was bad enough to lose keys entirely sometimes, and could otherwise delay a button press or release by 200 ms.
This was the entire reason I created the fork, and I finally did it! It syncs the controls every scanline of a frame, which costs about 60,000 MIPS instructions per frame to deal with. Luckily, the processor runs at 396 MHz, which means the cost of checking the controls is 1% of the CPU's power.
Diffstat (limited to 'source/ppu.h')
| -rw-r--r-- | source/ppu.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/source/ppu.h b/source/ppu.h index 6daf473..065ad5f 100644 --- a/source/ppu.h +++ b/source/ppu.h @@ -151,6 +151,9 @@ struct InternalPPU { int CurrentLine; int Controller; uint32 Joypads[5]; +#ifdef SYNC_JOYPAD_AT_HBLANK + uint32 JoypadsAtHBlanks[5][SNES_MAX_PAL_VCOUNTER]; +#endif uint32 SuperScope; uint32 Mouse[2]; int PrevMouseX[2]; |