Commit graph

11 commits

Author SHA1 Message Date
Solomon Peachy
5b23c9eb0a Introduce HW_SAMPR_MIN_GE_22 macro
Gives us the lowest HW sample rate that's >= 22KHz.

Needed because some targets that don't support 22K support 11K or 8K, so
HW_SAMPR_MIN will give us much lower quality than is acceptable.

Take advantage of this new macro in the SDL, MIDI, and MIKMOD plugins,
and implement a crude "fast enough" test to enable higher sample rates
on more capable targets.

Change-Id: I6ad38026fb3410c62da028e78512e027729bb851
2019-08-08 22:37:30 +02:00
Franklin Wei
08fd69c347 sdl: fall back to minimum supported sample rate if 22 kHz is not supported
Fixes too-fast audio playback on devices that don't support 22 kHz.

Change-Id: I78d4934bfd40f69c0d7bc9e8021df3f4edf0a9fb
2019-08-04 22:57:58 +02:00
Vencislav Atanasov
722ddcf6ba sdl: Fixes for the SDL apps, so they support building simulator on Windows
Change-Id: I277d391482a80e5bf9dd8049cd3b78c5cae7205e
2019-07-31 19:34:18 +02:00
Franklin Wei
0b23348610 sdl: forward-declare fscanf_wrapper
Silences a few warnings (if you enable them).

Change-Id: Id9a9f4c688742c13ee3eb0777c40b4d4edcda224
2019-07-30 03:43:57 +02:00
Vencislav Atanasov
183e45e8d0
sdl: Remove platform-specific code
Also nuke the Makefiles of Duke Nukem 3D (pun intended).

Change-Id: If2707cf079bfb9299347f9c5f980780134b6ecda
2019-07-29 01:59:40 +03:00
Franklin Wei
711ddfdaad sdl: gut non-Rockbox platform detection code
This should prevent false positives when simulators for other systems (e.g.
win32).

Change-Id: Ib14a277fbfeb1b0ae141ebc4591d80a2cc0f526d
2019-07-28 13:59:32 -04:00
Franklin Wei
5d05b9d3e9 Quake!
This ports id Software's Quake to run on the SDL plugin runtime. The
source code originated from id under the GPLv2 license. I used
https://github.com/ahefner/sdlquake as the base of my port.

Performance is, unsurprisingly, not on par with what you're probably
used to on PC. I average about 10FPS on ipod6g, but it's still
playable.

Sound works well enough, but in-game music is not supported. I've
written ARM assembly routines for the inner sound loop. Make sure you
turn the "brightness" all the way down, or colors will look funky.

To run, extract Quake's data files to /.rockbox/quake. Have fun!

Change-Id: I4285036e967d7f0722802d43cf2096c808ca5799
2019-07-19 22:37:40 -04:00
Franklin Wei
71922db6cf sdl: a couple minor fixes
Prevents system SDL from interfering with thread driver selection. Also
adds test code for alignment faults.

Change-Id: I8bc181922c4a9e764429897dbbaa1ffaabd01126
2019-07-09 11:20:55 -04:00
Franklin Wei
beaeb28a29 duke3d: bump audio sample rate to 22.1KHz
Recent optimizations to sound mixing should allow this, up from 16KHz.

Change-Id: I0ba5742c934118a3a6505b8dc58578b0cfe8ea77
2018-01-15 19:45:57 -05:00
Franklin Wei
9f6ce046cb duke3d: rewrite sound mixing to use fixed-point
Gives significant performance improvement on ipod6g.

Change-Id: I1e8462bec197acb10e770c796240b5001df52440
2017-12-26 23:42:42 -05:00
Franklin Wei
a855d62025 Port of Duke Nukem 3D
This ports Fabien Sanglard's Chocolate Duke to run on a version of SDL
for Rockbox.

Change-Id: I8f2c4c78af19de10c1633ed7bb7a997b43256dd9
2017-12-23 21:01:26 -05:00