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Merge branch 'basic-frame-skip' into 'master'

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Frame skipping

See merge request KartKrew/Kart!1566
This commit is contained in:
Oni 2023-10-19 06:52:40 +00:00
commit 2d83bdbc7c
1 changed files with 31 additions and 5 deletions
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36
src/d_main.cpp
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@ -330,8 +330,9 @@ gamestate_t wipegamestate = GS_LEVEL;
INT16 wipetypepre = -1; INT16 wipetypepre = -1;
INT16 wipetypepost = -1; INT16 wipetypepost = -1;
static void D_Display(void) static bool D_Display(void)
{ {
bool ranwipe = false;
boolean forcerefresh = false; boolean forcerefresh = false;
static boolean wipe = false; static boolean wipe = false;
INT32 wipedefindex = 0; INT32 wipedefindex = 0;
@ -342,7 +343,7 @@ static void D_Display(void)
if (!dedicated) if (!dedicated)
{ {
if (nodrawers) if (nodrawers)
return; // for comparative timing/profiling return false; // for comparative timing/profiling
// Lactozilla: Switching renderers works by checking // Lactozilla: Switching renderers works by checking
// if the game has to do it right when the frame // if the game has to do it right when the frame
@ -411,6 +412,7 @@ static void D_Display(void)
F_WipeColorFill(31); F_WipeColorFill(31);
F_WipeEndScreen(); F_WipeEndScreen();
F_RunWipe(wipedefindex, wipetypepre, gamestate != GS_MENU, "FADEMAP0", false, false); F_RunWipe(wipedefindex, wipetypepre, gamestate != GS_MENU, "FADEMAP0", false, false);
ranwipe = true;
} }
if (G_GamestateUsesLevel() == false && rendermode != render_none) if (G_GamestateUsesLevel() == false && rendermode != render_none)
@ -424,6 +426,7 @@ static void D_Display(void)
else //dedicated servers else //dedicated servers
{ {
F_RunWipe(wipedefindex, wipedefs[wipedefindex], gamestate != GS_MENU, "FADEMAP0", false, false); F_RunWipe(wipedefindex, wipedefs[wipedefindex], gamestate != GS_MENU, "FADEMAP0", false, false);
ranwipe = true;
wipegamestate = gamestate; wipegamestate = gamestate;
} }
@ -433,7 +436,7 @@ static void D_Display(void)
wipetypepre = -1; wipetypepre = -1;
if (dedicated) //bail out after wipe logic if (dedicated) //bail out after wipe logic
return; return false;
// Catch runaway clipping rectangles. // Catch runaway clipping rectangles.
V_ClearClipRect(); V_ClearClipRect();
@ -710,6 +713,7 @@ static void D_Display(void)
F_WipeEndScreen(); F_WipeEndScreen();
F_RunWipe(wipedefindex, wipedefs[wipedefindex], gamestate != GS_MENU && gamestate != GS_TITLESCREEN, "FADEMAP0", true, false); F_RunWipe(wipedefindex, wipedefs[wipedefindex], gamestate != GS_MENU && gamestate != GS_TITLESCREEN, "FADEMAP0", true, false);
ranwipe = true;
} }
// reset counters so timedemo doesn't count the wipe duration // reset counters so timedemo doesn't count the wipe duration
@ -765,6 +769,8 @@ static void D_Display(void)
I_FinishUpdate(); // page flip or blit buffer I_FinishUpdate(); // page flip or blit buffer
ps_swaptime = I_GetPreciseTime() - ps_swaptime; ps_swaptime = I_GetPreciseTime() - ps_swaptime;
} }
return ranwipe;
} }
// ========================================================================= // =========================================================================
@ -781,6 +787,7 @@ void D_SRB2Loop(void)
boolean interp = false; boolean interp = false;
boolean doDisplay = false; boolean doDisplay = false;
int frameskip = 0;
if (dedicated) if (dedicated)
server = true; server = true;
@ -831,6 +838,8 @@ void D_SRB2Loop(void)
capbudget = (precise_t) budget; capbudget = (precise_t) budget;
} }
bool ranwipe = false;
I_UpdateTime(cv_timescale.value); I_UpdateTime(cv_timescale.value);
if (lastwipetic) if (lastwipetic)
@ -927,9 +936,9 @@ void D_SRB2Loop(void)
rendertimefrac_unpaused = FRACUNIT; rendertimefrac_unpaused = FRACUNIT;
} }
if (interp || doDisplay) if ((interp || doDisplay) && !frameskip)
{ {
D_Display(); ranwipe = D_Display();
} }
#ifdef HWRENDER #ifdef HWRENDER
@ -980,6 +989,23 @@ void D_SRB2Loop(void)
finishprecise = I_GetPreciseTime(); finishprecise = I_GetPreciseTime();
deltasecs = (double)((INT64)(finishprecise - enterprecise)) / I_GetPrecisePrecision(); deltasecs = (double)((INT64)(finishprecise - enterprecise)) / I_GetPrecisePrecision();
deltatics = deltasecs * NEWTICRATE; deltatics = deltasecs * NEWTICRATE;
// If time spent this game loop exceeds a single tic,
// it's probably because of rendering.
//
// Skip rendering the next frame, up to a limit of 3
// frames before a frame is rendered no matter what.
//
// Wipes run an inner loop and artificially increase
// the measured time.
if (!ranwipe && frameskip < 3 && deltatics > 1.0)
{
frameskip++;
}
else
{
frameskip = 0;
}
} }
} }