Commit graph

12372 commits

Author SHA1 Message Date
Bill Currie
939a73fb52 [sys] Override strdup for 32-bit windows
This fixes some nasty segfaults when calling free due to different
allocators being used.
2022-03-21 19:23:49 +09:00
Bill Currie
296c04c8eb [console] Ensure console lines doesn't exceed view
This fixes a segfault in 32-bit nq-win caused by negative frame times
(due to something going weird with Sys_DoubleTime).
2022-03-21 19:21:54 +09:00
Bill Currie
4c90c3c4bb [sw] Remove pixbytes from sw_ctx_t
It's no longer needed as the sw renderer is 8-bit only.
2022-03-21 14:37:28 +09:00
Bill Currie
b82a353a20 [vid] Remove VID_InitBuffers
Its guts have been moved to D_Init temporarily while I work on the
frame buffer design. This is actually a big part of that work as it
moves most of the frame buffer creation into the one place, making it
easier to ensure I get all the sub-buffers and caches created.
2022-03-21 14:35:11 +09:00
Bill Currie
3b4608a0cd [vid] Update glx handling to ensure GL 3.0
With what I have planned for frame buffers etc, GL 3.0 will be needed
even for the fixed-function GL renderer, and then I might even take the
GLSL renderer to 4.6 (dunno yet). This means that wgl will need to be
updated too, and I've found the info I need for that, but it's a bit
much to take on just yet.
2022-03-20 12:52:20 +09:00
Bill Currie
0f30f0a133 [mathlib] Remove suspicious IS_NAN
The implementation looks wrong (more like infinity). Where it was used
is currently disabled, but the usages were replaced with C99's isnan.
2022-03-19 12:50:08 +09:00
Bill Currie
65af7fb4a4 [mathlib] Remove frustum global
It should never have been there and is now in the refdef (not its final
home: it should probably be part of the camera).
2022-03-19 12:33:12 +09:00
Bill Currie
b912c2a667 [renderer] Clean up R_SetFrustum
The only global it touches now is frustum, and that needs fixing in
mathlib (good grief, we (probably I) did some weird things when merging
the code).
2022-03-19 10:06:38 +09:00
Bill Currie
c3f38e1c79 [renderer] Remove player_entity field
This was a hold-over from the gl mirror code.
2022-03-19 09:46:53 +09:00
Bill Currie
ee51d06aa3 [renderer] Clean up a lot of recalc_refdef use
I think the widespread use of recalc_refdef (and force_fullscreen) was
the result of a rushed merge of the renderer and video code (I do seem
to remember sprinkling them around). This cleans the two out of the
client code.
2022-03-19 00:56:30 +09:00
Bill Currie
a4479f4840 [cvar] Ensure floats can round-trip when setting
The way Cvar_SetValue is used, floats need to be able to round-trip
reliably and thus need up to 9 digits of precision.
2022-03-18 11:42:14 +09:00
Bill Currie
c8c742b240 [renderer] Use a better calculation for fov_y
This avoids the possibility of a singularity (and thus the temptation to
use Sys_Error). While the rendering is rubbish, 0 degrees is allowed
because values less than 1 should be allowed, but where does one stop?
170 is the maximum in order to avoid any issues with (near) parallel or
inverted frustum planes (or other fun things) in the low level code.
2022-03-18 11:14:24 +09:00
Bill Currie
2b72506868 [renderer] Handle transparent surfaces
Other than the view model (undecided on the approach) this has
R_RenderView pretty much pulled out of the low level renderers. With
this, I'll be able to focus on scene handling for a bit then getting
shadows and fisheye working (again for fisheye).
2022-03-18 01:08:19 +09:00
Bill Currie
c05476f94b [renderer] Move most of the scene rendering into r_screen
r_screen isn't really the right place, but it gets the scene rendering
out of the low-level renderers and will make it easier to sort out
later, and hopefully easier to figure out a good design for vulkan.
2022-03-17 17:57:50 +09:00
Bill Currie
961e6d9e6c [gl] Remove unnecessary light map update code
gl_overbright_f shouldn't need to run through any entity queues to
update the light maps as only the world model has light maps, and
hitting the world model should hit all its sub-models.
2022-03-17 17:46:25 +09:00
Bill Currie
833fb2f4f8 [sw] Make alight_t lightvec an actual vector
The change to using separate per-model-type entity queues resulted in
the lighting vector used for alias and iqm models being in an ephemeral
location (in the shared setup_lighting function's stack frame). This
resulted in the model rendering code getting a garbage vector due to it
being overwritten by another stack frame. What I don't get is why the
garbage varied from run to run for the same demo (demo2, the first scrag
behind the start door showed the bad lighting nicely), which made
tracking down the offending commit (and thus the code) rather
troublesome, though once I found it, it was a bit of a face-palm moment.
2022-03-17 15:38:22 +09:00
Bill Currie
6c29904b1d [sw] Clean up R_SetSkyFrame a little
Move the constant data into R_InitSky so it doesn't get calculated every
frame (doesn't make much difference of course, but...)
2022-03-17 13:37:21 +09:00
Bill Currie
d8a4c8dbe9 [renderer] Clean up r_bsp a little
Move r_pcurrentvertbase into the sw renderer, cleaning up gl's use of
(not really needed there). Not ready to move r_bsp into the main bin yet
as there are linking issues since only the low-level code references any
of its symbols.
2022-03-17 13:09:20 +09:00
Bill Currie
7ee9159638 [renderer] Move common R_SetupFrame code to r_screen
The code is really part of scene (not a typo wrt r_screen: that is
misnamed as such, or at least SCR_UpdateScreen needs to be split into
screen (2d overlay, really) and scene updates).

This breaks fisheye rendering as the fisheye code calls the actual scene
render code multiple times, but the fisheye code is called by said scene
render code via a diversion. The fisheye needs to be moved out to the
high level scene render, but that will takes some extra work for frame
buffer setup.
2022-03-17 12:00:43 +09:00
Bill Currie
335d387ba8 [renderer] Clean up some stray vup etc
Now vup, vfwd, vright names are restricted to only the software renderer
(the only one that has such global variables).
2022-03-17 11:55:58 +09:00
Bill Currie
0e58f96d37 [renderer] Fix more plugin linking errors 2022-03-17 11:21:38 +09:00
Bill Currie
1458f61a48 [renderer] Fix non-static linking of graph code
Obviously forgot to test the changes I made to graph rendering in
non-static builds. Oops :P
2022-03-17 10:51:29 +09:00
Bill Currie
d3bfc54a68 [sw] Disable water warp when doing fisheye
The two aren't compatible (but warping might be doable in the fisheye
code). The whole frame setup code needs a rework, and really, even the
buffer handling.
2022-03-17 09:42:09 +09:00
Bill Currie
9241efaf1e [sw] Use a smaller size for the fish eye cube map
This speeds up sw rendering of the fish eye effect.
2022-03-16 13:55:44 +09:00
Bill Currie
ab78e9d2ff [sw] Make worldent local static
It being on the stack was a bad idea as R_RenderWorld returns before the
scans are rendered and thus the entity pointer winds up pointing to
abandoned stack space.
2022-03-15 16:54:59 +09:00
Bill Currie
91d7a80dff [renderer] Get timegraph and zgraph working
Only for sw and gl right now, but this sorts out the issues that
prevented the graphs working at all.
2022-03-15 15:42:43 +09:00
Bill Currie
5a57280aa9 [gl] Use glGenTextures to allocate texture numbers
While the scheme of using our own allocated did work just fine, fisheye
rendering uses glGenTextures which caused a texture id clash and thus
invalid operations (the cube map texture happened to be the same as the
console background texture). Sure, I could have just "fixed" the fisheye
init code, but this brings gl closer in line with glsl (which makes
extensive use of glGenTextures and glDeleteTextures). This doesn't fix
any texture leaks gl has (plenty, I imagine), but it's a step in the
right direction.
2022-03-15 13:29:05 +09:00
Bill Currie
fb4fd979ec [gl] Move error check support into a better place
This makes it a little easier to spam checks everywhere and thus narrow
down the location of the error.
2022-03-15 12:33:25 +09:00
Bill Currie
1d93bcfc34 [gl] Clean out some missed mirror code 2022-03-15 00:09:37 +09:00
Bill Currie
fd805886f7 [renderer] Get fisheye working again
Only for gl and sw at the moment (want to merge things further before I
do anything for glsl or vulkan). However, with with I've learned getting
gl and sw to work, glsl and vulkan will be trivial.
2022-03-14 23:51:30 +09:00
Bill Currie
7402fcfd0c [renderer] move r_worldentity and r_viewleaf into refdef
More cleanup of globals that seem to be quake specific.
2022-03-14 15:27:43 +09:00
Bill Currie
2641fe3241 [gl] Remove some dead code
R_RecursiveLightUpdate has been obsolete for a very long time, and
R_Mirror is just wrong (needs envmaps etc, wonder if it can be done in
the fixed function code using skyclip?)
2022-03-14 15:12:33 +09:00
Bill Currie
56c39c34ba [renderer] Remove namehack.h
Finally. I never liked it (felt bad adding it in the first place), and
it has caused confusion with function and global variable names, but it
did let me get the render plugins working.
2022-03-14 14:31:23 +09:00
Bill Currie
04ba724382 [sw] Clean up alias and iqm matrix setup
This removes some FIXMEs and might even speed things up ever so
slightly.
2022-03-14 11:56:10 +09:00
Bill Currie
16440bce2d [mathlib] Clean up AngleVectors comments a little
They're still slightly confusing, but the situation itself is confusing,
but the comments should be a little more helpful now as they are more
explicit about the orientation of the matrices and just which axis
points where.
2022-03-14 11:51:50 +09:00
Bill Currie
ef850d97ea [qfmdl] Speed up vertex import slightly
Well, not measured, but I expect that python allocates the destination
list before executing the loop (I've forgotten the name of that coding
form).
2022-03-14 11:11:18 +09:00
Bill Currie
bce7d5b832 [renderer] Clean up use of vup/vright/vpn
This moves the common camera setup code out of the individual drivers,
and completely removes vup/vright/vpn from the non-software renderers.
This has highlighted the craziness around AngleVectors with it putting
+X forward, -Y right and +Z up. The main issue with this is it requires
a 90 degree pre-rotation about the Z axis to get the camera pointing in
the right direction, and that's for the native sw renderer (vulkan needs
a 90 degree pre-rotation about X, and gl and glsl need to invert an
axis, too), though at least it's just a matrix swizzle and vector
negation. However, it does mean the camera matrices can't be used
directly.

Also rename vpn to vfwd (still abbreviated, but fwd is much clearer in
meaning (to me, at least) than pn (plane normal, I guess, but which
way?)).
2022-03-14 09:45:27 +09:00
Bill Currie
f3768e3dfb [renderer] Remove currententity
One more global in the trash :)
2022-03-11 16:39:08 +09:00
Bill Currie
64666cfa5b [renderer] Clean up most uses of currententity
Just some brush model related code in the software renderer remaining.
2022-03-11 15:07:38 +09:00
Bill Currie
3bdec49587 [sw] Remove r_origin entirely
And clean up a lot of modelorg (a little trickier than it was for gl due
to messy usage).
2022-03-11 13:10:20 +09:00
Bill Currie
2606564955 [sw] Remove some dead code 2022-03-10 11:37:19 +09:00
Bill Currie
0cfff27cd0 [sw] Move surf and edge stats printing to begin_frame
Part of cleaning up SetupFrame
2022-03-09 22:53:15 +09:00
Bill Currie
3414eb12a3 [renderer] Move r_ambient and r_drawflat to client code
It makes more sense for these cvars to be under client control via
r_refdef. Completely disabled in qw, and currently ignored in nq.
2022-03-09 22:51:21 +09:00
Bill Currie
5477352e93 [renderer] Abandon sw32 altogether
I'd been considering it for a while, but in the end, all the issues it
presented made me decide it wasn't worth merging and was never really
worth keeping: it was a neat proof of concept but of little actual use,
especially now everyone either has an OK GPU or would want to stick to
8-bit rendering anyway (sorry L-Havoc).

However, both it and my merge work are preserved in git history :)
2022-03-09 21:36:15 +09:00
Bill Currie
19348f678f [win] Get the software renderer hobbling
16 and 32 bit rendering are disabled at the moment because there's a
weird segfault I need to fix, but the 8-bit dynamic lights are doing
weird things (for x11, too) when updating the light maps.
2022-03-09 20:00:59 +09:00
Bill Currie
dce1a4d292 [util] Force 32-bit windows malloc to be 16-byte aligned
By replacing it :P (and its friends). This gets the non-sw renderers
working with recent scene changes.
2022-03-09 20:00:51 +09:00
Bill Currie
747494c03a [sw] Fix 16 and 32 bit alias model rendering
Intel asm needs testing still, but C is working nicely.
2022-03-09 16:56:36 +09:00
Bill Currie
6377734e32 [renderer] Merge the two software renderers
I got tired of having to maintain two separate software renderers, but
didn't want to just nuke sw32, so its core changes are merged into sw.

Alias model rendering is broken, but I know exactly what's wrong and how
to fix it, just need to take care due to asm.
2022-03-09 15:56:19 +09:00
Bill Currie
cfe0455cce [screen] Move some flags into screen.h
And remove r_screen.h. Fixes windows builds due to missing
scr_skipupdate.
2022-03-09 09:31:22 +09:00
Bill Currie
5c8f3ec3ac [renderer] Fix some non-static linking issues
Well, hopefully I'll get the root cause sorted eventually. I really hate
globals.
2022-03-09 06:55:31 +09:00