fix sv_nqplayerphysics+spectators = spectators able to shoot
fix watervis bug, turned out to potentially be more serious.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5194 fc73d0e0-1445-4013-8a0c-d673dee63da5
xonotic: fix jumppads not working while onground.
attempt to parse meag's protocol changes, in case we get a .qwd from ezquake. does not report them to servers at this time.
added cl_fullpitch cvar. only affects nq servers that lack serverinfo.
support dds/ktx-based cubemaps, including for skyboxes.
recognise multiple new compressed texture formats - bc1-7, etc1+2+eac,.astc. Addeded to supporting drivers/apis.
software decoder for etc2,bc4+bc5 textures, so they can be considered universal (but with fallbacks).
software decoder for bc1-bc3 textures, but disabled due to lingering patent paranoia.
report heartbeats once, by default.
r_viewmodel_fov support for vk+d3d9+d3d11 renderers.
fix depth projection differences with various renderers (min dist is now consistent).
added some code to announce when cl_delay_packets changes.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5188 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix capturedemo over vid reloads.
fix playfilm letterboxing issue.
con_printf will now create consoles as needed.
fix .skin compose line.
fix a couple of q3bsp issues
core gl contexts will no longer be given pre-core glsl shaders, is the theory.
qcc now warns about unused fields. use the __used keyword to mark those fields as actually needed. use __unused to allow the qcc to potentially silently strip them.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5166 fc73d0e0-1445-4013-8a0c-d673dee63da5
reworked deferred rendering to support specular. mrt can be reconfigured by TCs if desired.
reworked q3bsp deluxemap code (so it no longer bugs out).
fixed a few warnings.
updated fteqcc to try to cope with xonotic. still not working (xonotic fails from bound checks).
reworked shader conditionals to support elif. added some directives from QF(aka: warsow)
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5158 fc73d0e0-1445-4013-8a0c-d673dee63da5
added .ktx image support as an alternative to .dds, primarily for etc2 compression (which should work on all gles3 devices, or gl4.3), only known representations will work.
rework z-fighting workaround. now only enabled on known vanilla maps.
added splitscreen option to the singleplayer menu.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5154 fc73d0e0-1445-4013-8a0c-d673dee63da5
some more tweaks for xonotic
rcon-over-xmpp, because I can. Server might see your rcon password, so watch out for that.
qcc tweaks.
updated q1qvm api stuff to api version 15.
android port updated. egl now handled by native code, which means we now have proper control over everything and can default to gles2. requires android 2.0+. vulkan-on-android renderer added, but not tested.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5153 fc73d0e0-1445-4013-8a0c-d673dee63da5
Added sv_guidkey cvar, allowing cross-server guid key generation (although it lacks auth).
Support .ico, because we can.
preliminary support for sdl 2.0.6's vulkan stuff. will wait till its actually released before its properly used.
Fix capturedemo.
videomap should typically use premultiplied alpha, apparently.
Updated sound drivers. No more old drivers. Better cvar registration. More drivers optionally support float output.
Added certificate log for dtls connections.
Rewrote font char cache, now supports full unicode char range, not just ucs-2. Attempt to support FreeType 2.5+ rgba fonts.
XMPP now supports carbons, and shows avatars in conversations. Updated xmpp's scram auth to be more strict, including the plus variation (hopefully), to block evil tls proxies.
ffmpeg plugin now uses the decoupled api for decoding too.
Cef plugin updated to support fte-scheme post data properly, as well as request/response headers (like cross-origin).
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5148 fc73d0e0-1445-4013-8a0c-d673dee63da5
Add separate cl_movement cvar to enable/disable reporting input sequences to DP servers (which use different pathways). Does not affect other protocols. This is separate from cl_nopred but will usually have the same result in the long run.
Fixed movevalues for DPP7 clients, if they try using prediction they should now (mostly) get the same values that DP normally uses for QW servers.
Reworked sky overrides somewhat. Now uses skyboxes where possible.
Fixed dpcompat_makeshitup a little, for better compat.
Fixed echo $foo$bar not exanding bar.
Try to fix the meanings of vid_hardwaregamma.
Fixes for builtins/features/etc that apparently only xonotic uses.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5143 fc73d0e0-1445-4013-8a0c-d673dee63da5
q2 temp entity tweaks. still more work to be done.
support sRGB (mostly)properly in gl+vk+d3d9+d3d11.
vulkan tweaks - multisample works under certain conditions. additional other changes to comply... cvars to enable some other device extensions.
removed r_viewleaf. now using clusters for q1 too.
improved compat with quakespasm's sky command.
Added vid_winthread cvar, to handle window messages on a separate thread. When set this allows the game to keep redrawing when the user is resizing the window etc.
Finally added renderers option to menusys.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5130 fc73d0e0-1445-4013-8a0c-d673dee63da5
demo menu now properly lists the contents of archives.
demos played from subdirs/archives can now chain properly.
autodetect nehahra's demos. Add -nehahra argument to register/override cvar defaults (and set the right gamedir+startmap).
fix some q2 download bugs.
lame attempt at proper sRGB support (gl+vk+d3d9+d3d11 renderers).
fix q3bsp wrong-lightmaps bug.
match DP's viewzoom behaviour by not applying it when VF_[A]FOV was explicitly used.
fix d3d9 issue with missing textures screwing up blend modes.
vk: use a staging buffer instead of a staging textures per mip.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5128 fc73d0e0-1445-4013-8a0c-d673dee63da5
addtrisoup_simple now supports line lists too.
fix a memory leak in the sound code.
fix chunked http download corruption in certain cases.
reworked the networking associated with entity editing. now carries ids instead of indexes (qc isn't aware of them).
'map blarg.map' will now auto-create a dummy map if it does not already exist. this should make it easier to get started with map editing.
fix some issues with banning yourself - loopback can now mute etc themselves, but not ban themselves.
downloads/updates menu now handles plugin detection. user-installed plugins will result in a prompt allowing the user to enable/disable/delete them. This makes using plugins more explicit.
revamped help menu to remove m_state
fix silly ode copypasta bug, added preliminary bullet code in case anyone is interested.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5090 fc73d0e0-1445-4013-8a0c-d673dee63da5
increase xz memory limit
fix fseek/fsize to match definitions.
r_deluxemapping is more aggressive with regards to generating lux files on demand (but won't generate lit data at the same time).
fix webgl shader issues.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5071 fc73d0e0-1445-4013-8a0c-d673dee63da5
tweak rtlights a bit, to not bug out on The Waste's decals.
use compatibility glsl in order to get ftransform working for consistent vertex coords (still uses core if there's no fixed function stuff). this fixes z-fighting issues with rtlights.
Rework punchangles for greater compatibility.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5059 fc73d0e0-1445-4013-8a0c-d673dee63da5
make the 'identify' command assume that a single decimal number is not an address (allowing it to be handled as a user id).
qcc: support default initialisers in function calls.
tweak filesystem code to try to flush individual files instead of discarding the entire fs hash.
fix 'snap' stuff.
other tweaks...
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5058 fc73d0e0-1445-4013-8a0c-d673dee63da5
implemented identify+iplog stuff for nq users.
r_tessellation forces blinn tessellation on meshes. can also be specified manually.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5055 fc73d0e0-1445-4013-8a0c-d673dee63da5
some tweaks to try to make webgl more robust.
added r_max_gpu_bones cvar. defaults to 0 in webgl for now (64 otherwise).
fixed gles2+skeletal issue that was breaking webgl (note r_max_gpu_bones needs to be set to 32 or something for it to actually use glsl bones with webgl).
sound rates now internally use decimals instead of percents. because meh.
allow PEXT2_MAXPLAYERS and angle deltas in nq.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5052 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix misc bugs.
rewrote skeletal code to use gpu-friendly skeletal data for all skeletal formats.
add modelframecount builtin, to easily get the number of frames in a model.
integrate hlmdl a little better.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5031 fc73d0e0-1445-4013-8a0c-d673dee63da5
openal: doppler now applies to openal more consistently.
vulkan: vk_loadglsl cvar enables vk_nv_glsl_shader, with support for existing glsl shaders (still no permutations for now). needs !!samps stuff.
vulkan: r_renderscale now partly works. r_fxaa also works under specific circumstances. needs more work. still no bloom or projections stuff.
menu_download: got a few tweaks to improve it, including zips. I still want to handle engine updates with this stuff, but that can wait for later.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5008 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix some non-ascii encoding.
generate placeholder 8bit mipmaps for gles2/webgl in case anyone tries using 'vanilla' rendering.
revamping the downloads menu.
fix particles needing a specific blend mode in order to use custom shaders.
added trace_bone_id globals for qc. untested.
try to fix ragdoll crash. failing that, at least prevent it from being a crash.
try to fix d3d11 black lightmaps issue.
add r_norefresh to d3d9+d3d11
skin composing can now use subpics.
vulkan now tries to properly detect supported texture formats, instead of assuming.
vulkan now has a cvar to configure which dynamic buffers should be staged or shared.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5006 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix some more compile-time issues.
fix some vulkan issues that are probably what's breaking amd gpus.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5005 fc73d0e0-1445-4013-8a0c-d673dee63da5
vulkan, wasapi, quake injector features added.
irc, avplug, cef plugins/drivers reworked/updated/added
openal reverb, doppler effects added.
'dir' console command now attempts to view clicked files.
lots of warning fixes, should now only be deprecation warnings for most targets (depending on compiler version anyway...).
SendEntity finally reworked to use flags properly.
effectinfo improved, other smc-targetted fixes.
mapcluster stuff now has support for linux.
.basebone+.baseframe now exist in ssqc.
qcc: -Fqccx supports qccx syntax, including qccx hacks. don't expect these to work in fteqw nor dp though.
qcc: rewrote function call handling to use refs rather than defs. this makes struct passing more efficient and makes the __out keyword usable with fields etc.
qccgui: can cope a little better with non-unicode files. can now represent most quake chars.
qcc: suppressed warnings from *extensions.qc
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5000 fc73d0e0-1445-4013-8a0c-d673dee63da5
isolated transfers a little.
added preliminary support for r1q2 and q2pro protocols (no zlib).
fixed some missing q2 hud configstrings.
fixed models attached to particles not appearing the first time around.
fixed halos appearing on {foo fullbright textures.
fix particle crash bug from missing particlecubes.
implement r_converteffectinfo (instead of r_importeffectinfo with r_exportalleffects) for convenience. also now more complete and more accurate.
loadfont no longer auto-allocates slot 0.
fix issues with r_dynamic -1
don't restart audio on vid_reload (only reload it). this fixes audio issues with capturedemo with gamedir changes.
fix possible crash from loading sounds during an audio reload/restart.
now listens on both ports 27500 and 26000 when running quake, by default. sv_port or -port args will override.
work around surfedge corruption in some instance of the slide4 map that dimman found.
attempt to nudge players to travel at at least 200qu when travelling vertically through portals. this should help alieviate gravity-induced stuttering issues.
fix nested function types used in conjunction with op_state. now assumes static within the parent.
optimise array indexes slightly.
fix issue with ptr[float].foo
fix some qcc bugs to do with implicit type conversions
fix a portal / angle protocol extension issue, so legacy clients can use portals, they just can't see the other side (nor predict them).
fix q2 victory.pcx issue at the end of the game.
use abort/sigabort instead of sigsegv on linux sys_errors. this should help get people to report stuff better.
reformat the nq server advertising to be more helpful.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4996 fc73d0e0-1445-4013-8a0c-d673dee63da5
added //it stuffcmd.
now parsing //wps stuffcmds for ezhud use.
rework worker threads a little so that the main thread is no longer guaranteed to be stalled at least once. This speeds up load times a little.
fix nq server player counts in the server browser.
fix switching from/to spectator mode from destroying frag counts.
tweak custom bf args a little.
fix issue with player names starting with char 0x80.
fix menu.dat not loading.
attempt to fix flush lag on windows.
some fixes for stencil shadows.
try to fix public builds not knowing their svn revision. this should fix autoupdates.
added global_gravitydir vector, for mods that want to be really weird. doesn't clear onground flags however.
reworked the status command a little to attempt to report bursts a little better.
fix multicasts missing in mvds issue.
fix illegible server message with dpp7 downloads.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4992 fc73d0e0-1445-4013-8a0c-d673dee63da5
tweaked cl_maxfps a little. now sticks much closer to the desired rate. also tweaked cl_netfps. clamps 77fps to 13ms frames (read: 76.9 fps) in an attempt to avoid tripping up any framerate checks (we had previously been using a lower net rate with occasional 14ms frames).
viewspace particles are now a thing.
greater control over spawning particles. its now possible to spawn particles only in slime, etc.
fix soundlength builtin.
preliminary version of r_dynamic -1, which can give some significant framerate boosts on certain maps.
fix halflife bsp texture issues.
rewrote worker thread logic. workers now work as a single pool, instead of independent pools. this means that you don't have to wait for a specific thread to finish before it can load new stuff, reducing overall load times some more. worker_count cvar allows reconfiguring the number of active workers. can be changed any time.
updated mod_terrain_create command. should be more useful now and make more sense when first loaded.
fix lit support. apparently its been broken for a while.
brush editor now has csg subtraction.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4990 fc73d0e0-1445-4013-8a0c-d673dee63da5
implement cfg_save_auto cvar, to replicated vanilla quake, ish. default off, obviously.
support for Q2RDF_IRGOGGLES (in combination with Q2RF_IR_VISIBLE). untested.
rework vectorvectors to be more predictable. v_right_z is now _much_ more commonly 0.
fix potential sound-related lock-up/console spam.
implement $colored_armor+$colored_powerup macros.
if command now copes with ' quotes.
fix crash on flushing q3bsps.
fix black bits with r_renderscale+cl_sbar 1
implement emulation for legacy q3 shaders when glsl is required. this is primarily for webgl right now, but potentially also useful with any gles2 port (fixme: still need to tweak d3d11 backend to support this too).
include scrollbar glyphs in the fallback font logic. this is primarily for download progress bars, especially with webgl.
don't try applying gamma to screenshots when using glsl.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4976 fc73d0e0-1445-4013-8a0c-d673dee63da5
allow providing a videomap shader as a cwindow background. because I can.
move all the tenebrae hacks over to only explicitly detected tenebrae progs.
small irc plugin update.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4969 fc73d0e0-1445-4013-8a0c-d673dee63da5
load times reduced slightly.
don't show autoid armour if they're dead. its just not relevant.
fix csqc staticsound builtin.
fix some shader leaks/double-frees in certain situations.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4960 fc73d0e0-1445-4013-8a0c-d673dee63da5
implement hardware cursors in d3d9+d3d11
fix crash from closing the audio menu in the webgl port.
make deluxemapping+softwarebanding require a vid_reload before anything happens. this solves missing textures until the user does it anyway.
fix scores+spectating issue. again. oops.
rename openal devices in the webgl port, so that it makes more sense.
remove glsl/hlsl parameter limit. this also fixes the final ie webgl issue (still gets half the framerate though).
fix some issues with bloom and waterwarp active at the same time.
attempted to give properish error messages from emscripten, despite emscripten hating me.
hack drag+drop into fteqccgui. I ought to make fteqw accept demos etc this way some time too.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4959 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix vbos not being used for skeletal animations (50->770 fps jump, yes, really. OOPS!)
so yeah, 7700% speedup there. lol... *sigh*
fixed update notification prompt not appearing by splitting menu key dest into emenu+gmenu. thus the prompt is no longer killed by menu.dat starting up.
fog command now displays a the extra params.
rewrote console char handling to support 32bit unicode chars. font code does not support more than 16bit codepoints still, however.
rewrote beam code in order to restore models on vid_restart. this solves a crash where they were invalid pointers afterwards.
revived old menu_media, because jogi wanted shuffle.
music now fades out for a sec when changing fake-cd-tracks.
music no longer abruptly stops when changing maps.
added fxaa support.
reworked bloom a bit. can now bloom further.
added r_renderscale cvar, for people that want supersampling (max 2), or subsampling for more speed or whatever.
$timer now favours cvars with that name, rather than the $time macro.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4942 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix issues with converted qizmo demos that appear to contain connectionless packets.
clarify some spam a little.
made demos menu re-open in the same path as before, with the same demo selected. still no mouse.
attempt to cope with gles2's potential lower attribute limit.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4939 fc73d0e0-1445-4013-8a0c-d673dee63da5
make sure demos freeze at the start, instead of reading everything out of the file while we're still loading content.
added a couple of lame 'list' commands.
added 'in' command.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4928 fc73d0e0-1445-4013-8a0c-d673dee63da5
bind command now makes it a bit easier to edit the binding. and any alias.
autoid tweaks.
slightly better q1qvm/ktx support. extend the api a little.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4927 fc73d0e0-1445-4013-8a0c-d673dee63da5
implemented hud_teaminfo_show ezhud element. _LOTS_ of hacks. ezhud needs updated engine.
fix issue with overly friendly prints.
handle svc_setinfo more gracefully, for the next time OMC makes a bug.
allow glsl to embed default values for float cvars, in case they're not already set. this can save some docs...
removed prints about "wad" "foo\", fixing a crash concerning just which print function to call.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4925 fc73d0e0-1445-4013-8a0c-d673dee63da5
Fixed openal linux .so name, now usable in linux.
sdl audio code now uses sdl2 audio, and thus can support multiple devices simultaneously.
linux non-sdl builds now dynamically link to SDL2 for audio. This is now the default audio system in ALL non-android linux builds. This is the only real option to cope with the mess that is alsa.
Fix netgraph when running q2. No longer makes palette assumptions.
Fixed q2 ping values.
Tweaked a load of windows code to use wide chars, because microsoft do not support utf-8.
fixed an issue with winsspi where data from large packets could get lost.
now tries to read .lit2 files (although still refuses to read them for now).
Fixed motionblur. To make Shpuld happy... :P
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4871 fc73d0e0-1445-4013-8a0c-d673dee63da5
$diffuse can now sample animmaps correctly (although this only makes sense when using glsl or replacement shaders (read: rtlights)).
$fullbright now defaults according to the animmap too.
added reflectcube and reflectmask (the latter defaults according to map/animmap, the former needs to be explicitly stated).
fix d3d9+d3d11 renderers a little. needs much more work.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4868 fc73d0e0-1445-4013-8a0c-d673dee63da5
added frag message filter, and dedicated frag tracker.
added 'windowed consoles' for social-type stuff without depending upon csqc mods for it.
added in_deviceids command which allows listing/renumbering device ids.
slider widgets now support inverted ranges, so gamma selection isn't so weird.
fix top/bottom colour selection bug.
software banding feature is now part of the 'software' preset (now that it supports mipmaps).
support for loading .maps, and editing their brushes etc (with appropriate qc mod). 'map mymap.map' to use. expect problems with missing wads and replacement textures overriding them and messing up texture scales.
snd_inactive is now default.
fix threading issue with wavs, no more error from 0-sample-but-otherwise-valid wavs.
added -makeinstaller option to embed a manifest inside the exe (and icon).
the resulting program will insist on installing the game if its run from outside a valid basedir.
framegroup support for q1mdl.
textures are now loaded on multiple worker threads, for reduced load times. moo har har.
netgraph shows packet+byte rates too.
added r_lightstylescale, pretty similar to contrast, but doesn't impose any framerate cost, but may have overbrighting issues.
r_softwarebanding now works on q2bsp too.
fixed crepuscular lights.
gzip transfer encoding is performed while downloading, instead of inducing stalls.
FINALLY fix ezquake download compat issue (dimman found the issue).
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4851 fc73d0e0-1445-4013-8a0c-d673dee63da5
automatic lightmap texture scaling to retain more performance on large maps.
r_clutter preliminary implementation should probably fix up the shader still.
CSQC_Parse_Damage implemented.
finally implement q2 inventory.
fix mixer overflow crash.
glsl can now use s_diffuse etc to force inclusion of a diffuse sampler/texture, meaning shaders don't need to include them.
fix issue with writeip
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4841 fc73d0e0-1445-4013-8a0c-d673dee63da5
tweak some dp compatibility things. probably futile.
moved ode to a plugin.
added screenshot_mega command to take massive screenshots that are not tied to current video mode.
removed offscreen-gecko code completely.
added cvars to rescale offsetmapping from paletted sources, so it can be disabled where its ugly.
added support for zip weak encryption. the password defaults to 'thisispublic'. nothing is fool-proof.
gl: fix stereoscopic rendering.
gl: fix rendertargets with depth.
qc: added support for named builtins that do not have any specific number.
qc: added some new builtins. drawrotpic, drawtextfield, search_getfilemtime, and a few others.
qc: PF_Fixme now attempts to figure out which builtin you tried to call, for more friendly fatal error messages.
qccgui: stepover and stepout are now implemented, as is setnextstatement.
qccgui: added a way to annotate code with the asm statements generated from them.
qccgui: fixed double-clicking a src file.
qccgui: handles multiple .src files more usefully.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4832 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix gles+q3bsp black lightmaps bug.
enable q3bsp support in webgl port.
enable uncompressed pk3 support even if zlib isn't available.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4800 fc73d0e0-1445-4013-8a0c-d673dee63da5
try to handle mvd prespawning a little more generically, to enable support for vweps (when protocol extensions are active). also fix issues with mid-demo map changes, which can potentially affect qtv streams.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4795 fc73d0e0-1445-4013-8a0c-d673dee63da5
fix occasional vid_restart crash.
fix dynamic rtlight memory leak.
tweak some gl robustness things, so we can throw away the gl context and restart video cleanly if the drivers decide to randomly crash us. grr. dodgy drivers/hardware are annoying.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4775 fc73d0e0-1445-4013-8a0c-d673dee63da5
