bsnes/higan
Tim Allen a2d3b8ba15 Update to v098r04 release.
byuu says:

Changelog:
- SFC: fixed behavior of 21fx $21fe register when no device is connected
  (must return zero)
- SFC: reduced 21fx buffer size to 1024 bytes in both directions to
  mirror the FT232H we are using
- SFC: eliminated dsp/modulo-array.hpp [1]
- higan: implemented higan/video interface and migrated all cores to it
  [2]

[1] the echo history buffer was 8-bytes, so there was no need for it at
all here. Not sure what I was thinking. The BRR buffer was 12-bytes, and
has very weird behavior ... but there's only a single location in the
code where it actually writes to this buffer. It's much easier to just
write to the buffer three times there instead of implementing an entire
class just to abstract away two lines of code. This change actually
boosted the speed from ~124.5fps to around ~127.5fps, but that's within
the margin of error for GCC. I doubt it's actually faster this way.

The DSP core could really use a ton of work. It comes from a port of
blargg's spc_dsp to my coding style, but he was extremely fond of using
32-bit signed integers everywhere. There's a lot of opportunity to
remove red tape masking by resizing the variables to their actual state
sizes.

I really need to find where I put spc_dsp6.sfc from blargg. It's a great
test to verify if I've made any mistakes in my implementation that would
cause regressions. Don't suppose anyone has it?

[2] so again, the idea is that higan/audio and higan/video are going to
sit between the emulation cores and the user interfaces. The hope is to
output raw encoding data from the emulation cores without having to
worry about the video display format (generally 24-bit RGB) of the host
display. And also to avoid having to repeat myself with eg three
separate implementations of interframe blending, and so on.

Furthermore, the idea is that the user interface can configure its side
of the settings, and the emulation cores can configure their sides.
Thus, neither has to worry about the other end. And now we can spin off
new user interfaces much easier without having to mess with all of these
things.

Right now, I've implemented color emulation, interframe blending and
SNES horizontal color bleed. I did not implement scanlines (and
interlace effects for them) yet, but I probably will at some point.

Further, for right now, the WonderSwan/Color screen rotation is busted
and will only show games in the horizontal orientation. Obviously this
must be fixed before the next official release, but I'll want to think
about how to implement it.

Also, the SNES light gun pointers are missing for now.

Things are a bit messy right now as I've gone through several revisions
of how to handle these things, so a good house cleaning is in order once
everything is feature-complete again. I need to sit down and think
through how and where I want to handle things like light gun cursors,
LCD icons, and maybe even rasterized text messages.

And obviously ... higan/audio is still just nall::DSP's headers. I need
to revamp that whole interface. I want to make it quite powerful with
a true audio mixer so I can handle things like
SNES+SGB+MSU1+Voicer-Kun+SNES-CD (five separate audio streams at once.)

The video system has the concept of "effects" for things like color
bleed and interframe blending. I want to extend on this with useful
other effects, such as NTSC simulation, maybe bringing back my mini-HQ2x
filter, etc. I'd also like to restore the saturation/gamma/luma
adjustment sliders ... I always liked allowing people to compensate for
their displays without having to change settings system-wide. Lastly,
I've always wanted to see some audio effects. Although I doubt we'll
ever get my dream of CoreAudio-style profiles, I'd like to get some
basic equalizer settings and echo/reverb effects in there.
2016-04-12 07:29:56 +10:00
..
audio Update to v098r01 release. 2016-04-09 13:40:12 +10:00
data Update to v097r06 release. 2016-01-31 18:59:44 +11:00
emulator Update to v098r04 release. 2016-04-12 07:29:56 +10:00
fc Update to v098r04 release. 2016-04-12 07:29:56 +10:00
gb Update to v098r04 release. 2016-04-12 07:29:56 +10:00
gba Update to v098r04 release. 2016-04-12 07:29:56 +10:00
obj Update to v096r01 release. 2015-12-30 17:54:59 +11:00
out Update to v096r01 release. 2015-12-30 17:54:59 +11:00
processor Update to v097r29 release. 2016-03-26 12:56:15 +11:00
profile Update to v097r26 release. 2016-03-17 22:28:15 +11:00
sfc Update to v098r04 release. 2016-04-12 07:29:56 +10:00
target-loki Update to v098r01 release. 2016-04-09 13:40:12 +10:00
target-tomoko Update to v098r03 release. 2016-04-09 20:21:18 +10:00
video Update to v098r04 release. 2016-04-12 07:29:56 +10:00
ws Update to v098r04 release. 2016-04-12 07:29:56 +10:00
GNUmakefile Update to v098r01 release. 2016-04-09 13:40:12 +10:00