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Add parallelsoftware cvar

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In the rare case where kernel thread scheduling causes hitching issues
(SteamOS?), there should be an option to dynamically toggle multithread
dispatch of plane drawing.
This commit is contained in:
Eidolon 2024-01-29 19:21:43 -06:00
parent d40097426e
commit 591af1ab95
4 changed files with 6 additions and 1 deletions
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1
src/cvars.cpp
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@ -423,6 +423,7 @@ consvar_t cv_pauseifunfocused = Player("pauseifunfocused", "Yes").yes_no();
extern CV_PossibleValue_t cv_renderer_t[];
consvar_t cv_renderer = Player("renderer", "Software").flags(CV_NOLUA).values(cv_renderer_t).onchange(SCR_ChangeRenderer);
consvar_t cv_parallelsoftware = Player("parallelsoftware", "On").on_off();
consvar_t cv_renderview = Player("renderview", "On").on_off().dont_save();
consvar_t cv_rollingdemos = Player("rollingdemos", "On").on_off();

3
src/menus/options-video-1.c
View file

@ -59,6 +59,9 @@ menuitem_t OPTIONS_Video[] =
{IT_STRING | IT_CVAR, "Enable Skyboxes", "Turning this off may improve performance, but reduces courses' background details.",
NULL, {.cvar = &cv_skybox}, 0, 0},
{IT_STRING | IT_CVAR, "Parallel Software", "Uses multiple CPU cores for the software renderer if available, for a FPS boost.",
NULL, {.cvar = &cv_parallelsoftware}, 0, 0},
#ifdef HWRENDER
{IT_NOTHING|IT_SPACE, NULL, NULL,
NULL, {NULL}, 0, 0},

2
src/r_plane.cpp
View file

@ -666,7 +666,7 @@ void R_DrawPlanes(void)
if (pl->ffloor != NULL || pl->polyobj != NULL)
continue;
R_DrawSinglePlane(&ds, pl, true);
R_DrawSinglePlane(&ds, pl, cv_parallelsoftware.value);
}
}
}

1
src/screen.h
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@ -136,6 +136,7 @@ extern UINT8 *scr_borderpatch; // patch used to fill the view borders
extern consvar_t cv_scr_width, cv_scr_height, cv_scr_depth, cv_renderview, cv_renderer, cv_renderhitbox, cv_fullscreen;
extern consvar_t cv_vhseffect, cv_shittyscreen;
extern consvar_t cv_parallelsoftware;
// wait for page flipping to end or not
extern consvar_t cv_vidwait;