Commit graph

8 commits

Author SHA1 Message Date
Franklin Wei
d1a92aafff sdl: increase default worker thread size.
This fixes a mysterious, long-standing crash that's been bothering me on
ipod6g for ages: a silent stack overflow in the sound mixing thread (which
is triggered upon loading a new sound, apparently) will thrash the memory
which is located directly before it in the address space.

In this case, it was the SDL_ButtonState variable which stores the mouse
button state that was being trashed. This was manifesting itself by making
the player always run forward, since MOUSE2 is mapped to +forward by
default.

Fix this by quadrupling the stack size of SDL-spawned threads (not the main
thread) from 1 KB to 4 KB.

Change-Id: I2d7901b7cee1e3ceb1ccdebb38d4ac5b7ea730e1
2021-06-28 02:51:48 +00:00
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
b04f267ec3 sdl: prevent simulator build from using pthreads
The simulator build will pull in the host SDL headers, which we can't
filter out easily. A simple workaround is to simply remove the pthread
include from our SDL.

Change-Id: I09de0f2e85b891aa88958e21426ab450af516e76
2019-06-16 14:28:56 -04:00
Franklin Wei
6039eb05ba sdl: remove non-rockbox drivers
We never use any of these other drivers, so having them around just takes
up space.

Change-Id: Iced812162df1fef3fd55522b7e700acb6c3bcd41
2018-03-12 20:52:01 -04:00
Franklin Wei
69ff35ac49 sdl: correct misleading comments
Change-Id: Ieb33d3fec1e0d834c5e294b79f280959497acb6a
2018-01-14 19:32:13 -05:00
Franklin Wei
ccd612345c sdl: fix freeze on startup on PP targets
Using the coprocessor was a good idea in theory, but didn't actually work.
This moves all SDL threads to the main core, which isn't ideal, but at
least works. Additionally, this also adds some good-practice stuff such as
setting the default sample rate on exit.

Change-Id: If1636b33d439000ec7c4e50f46e8d002708d3121
2018-01-11 19:45:31 -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