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2013-01-07Revert "Add a bit that tolerates 1/16 latency per frame in automatic ↵Nebuleon Fumika
frameskip mode." This reverts commit d9b6322caafcbd355848a32acd8b8c0fa1746264.
2013-01-07Add a bit that tolerates 1/16 latency per frame in automatic frameskip mode.Nebuleon Fumika
Remove old automatic frameskip code.
2013-01-07Smooth out the automatic frame skipping such that it doesn't go from 1 FPS ↵Nebuleon Fumika
to 8 FPS right away and constantly. The equivalent frame skip will be 2, 3, 5 or 8 most of the time, depending on the game, and will vary a bit depending on rendering demands. For example, the frame skipping in Super Mario World is 3 on the map and in graphically simple levels, and 5 in complex levels.
2013-01-07Fix an off-by-one in the manual frameskip code. It would raise the sound ↵Nebuleon Fumika
speed by 25% if frame skip 3 (Show 1 in 4) rendered a frame early. Optimise the controller code. I don't expect to allow remapping any time soon, because the DS has buttons for every single SNES controller button and nothing more.
2013-01-07Add support for user-selected and automatic frame skipping. Add support for ↵Nebuleon Fumika
PAL timings (20 ms per frame). User-selected frameskip causes slowdowns if the game runs slower than the resulting frame rate, but synchronises correctly if the game runs faster. Automatic frame skipping is still the default. It now only skips up to 8 frames, but in some games still skips that entire 8 frames. What's needed is an algorithm that averages frame latencies over a few seconds and skips while the latency is LOWER than the average.
2013-01-05Sync ALL bits of the joypad again. This may make controls a bit slower to ↵Nebuleon Fumika
parse, but is required by Super Mario All-Stars at least.
2013-01-02Sleep when the lid is closed AND emulation is running. I don't know to what ↵Nebuleon Fumika
extent this will save on battery usage, though I do set the DSTWO's CPU to the lowest frequency while it sleeps.
2013-01-02Make Display Mode 4 an antialiased whole-screen mode.Nebuleon Fumika
* source/nds/displaymodes.cpp: Rewritten, assigned copyright to myself (GPLv2). * CATSFC/system/language.msg: Changed the English and French text for display modes.
2012-12-28Keep the audio processing unit (APU) enabled even when the user disabled the ↵Nebuleon Fumika
audio for a game. This allows some games that synchronise on the APU's actions to continue working.
2012-12-27Accidentally committed the previous revision with sound functions emptied.Nebuleon Fumika
2012-12-27Speed up rendering by an unknown amount.Nebuleon Fumika
gfx.cpp, others: Avoid always checking for Settings.SixteenBit if FOREVER_16_BIT is defined. port.h: Define FOREVER_16_BIT below PIXEL_FORMAT.
2012-12-26Add the update methods for the upper and lower screen into defines.Nebuleon Fumika
2012-12-26Smoother sound. Raise the sound sampling frequency to 48000 Hz.Nebuleon Fumika
2012-12-26Universally use update method 2 for the lower screen and 0 for the upper ↵Nebuleon Fumika
screen. Method 1 causes problems after about 15 minutes; despite the double-buffering, screen updates start to tear in the middle consistently.
2012-12-22Preliminary Snes9x-based cheat code support. Not tested, because the file ↵Nebuleon Fumika
selection interface freezes when it gets to the folder containing Mightymo's cheat files, whereas it did not do this before with the converted Mightymo cheats. (335 files -> 679, though.)
2012-12-21Eliminate the latency of button press recognition, which was bad enough to ↵Nebuleon Fumika
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.
2012-12-18Sync sound.Nebuleon Fumika
In addition to having less sound skipping going on, certain platformer games (I'm looking at you, Super Mario World) are helped by having more synchronised controls. In other words, synchronising the audio also synchronises the controls a bit more.
2012-12-18Remove various explicit delays and reduce screen tearing when drawing ↵Nebuleon Fumika
emulated screens.
2011-03-05first commitKitty Draper