Also a small change to the mixer. This should fix audio throttling in cases where num_samples > RESERVED_SAMPLES. This seems to happen now with zelda ucode games, possibly others.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6711 8ced0084-cf51-0410-be5f-012b33b47a6e
Applied the logic from r6691 to the LLE dec/add/sub functions so they work without ToMask. This should give a modest speedup for these.
Pierre's AR inc was already perfect and I only adjusted its logic a bit for visual consistency between the interpreter and JIT code.
Also applied Pierre's optimization from the LLE inc to the Int inc.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6707 8ced0084-cf51-0410-be5f-012b33b47a6e
Adjusted the code work without ToMask.
This code should be functionally identical for all inputs to the previous code.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6691 8ced0084-cf51-0410-be5f-012b33b47a6e
Return values from RunCycles isn't consistent/meaningful at the moment so assuming it runs as many cycles as asked.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6487 8ced0084-cf51-0410-be5f-012b33b47a6e
Restricts 'ssbm' loop detection to PBs with valid loop pred_scale values.
Masked coef_idx in the adpcm code so it can't fault on invalid values.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6480 8ced0084-cf51-0410-be5f-012b33b47a6e
Games that have higher frequency sounds and music should sound a bit better using 48k.
I don't have any games that use DTKMusic so that upsampling code untested. If you get strange sounds only at 48k try toggling dtk music to see if that isolates the problem and let me know.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6383 8ced0084-cf51-0410-be5f-012b33b47a6e
Windows audio backend with lower latency.
Audio never glitches on my machine but the number of buffers may be set too aggressively. If you run into problems try turning up NUM_BUFFERS in the h file and leave some feedback.
From my tests games seem to prefer filling the buffer with smaller chunks. For this to work the callback that fills the buffer needs to either spin or run async so I went with async.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6371 8ced0084-cf51-0410-be5f-012b33b47a6e
* Some fixes to linear interpolation
* Adds interpolation to ADPCM samples
* Relaxed a volume limit in ADPCM_Vol
Fixed:
- Frac rolls over one iteration before samplePos advances. Can introduce noise similar to flipping samples (1234 => 1214). Introduced oldFrac to fix this. This isn't as noticeable as it probably should be because of below.
- When samplePos doesn't advance it interpolates between two copies of the same sample which actually does nothing. Changed it to always use the current and next sample.
- When frac is 0 you should get 100% of yn2 instead of ~99% added a +yn2 to balance it.
Other changes:
- Added linear interpolation for ADPCM. Sounds like a good idea.
- Set ADPCM_Vol to clamp to x8000 instead of x4e20. Some games will play some sounds at x8000 volume anyways since the volume is applied before this. Lower limit can result in quiet music (x4e20) but some loud ambient sounds (0x8000).
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6041 8ced0084-cf51-0410-be5f-012b33b47a6e
mylek4