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Remove last vestiges of input latency from Duke3D and RR main game loops.

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- Hack code to break loop early removed. If game code is running slow, that's not the fix.
- Get input and fill the input_t struct in same loop as G_DoMoveThings().
- Remove unnecessary do/while (0) loop.
This commit is contained in:
Mitchell Richters 2020-03-25 20:38:44 +11:00 committed by Christoph Oelckers
parent 1a2663f7ac
commit 2cbbe9ec61
2 changed files with 45 additions and 94 deletions
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90
source/duke3d/src/game.cpp
View file

@ -5906,77 +5906,53 @@ MAIN_LOOP_RESTART:
OSD_DispatchQueued(); OSD_DispatchQueued();
static bool frameJustDrawn;
bool gameUpdate = false; bool gameUpdate = false;
double gameUpdateStartTime = timerGetHiTicks(); double gameUpdateStartTime = timerGetHiTicks();
auto beforeMoveClock = ototalclock;
if (((g_netClient || g_netServer) || (myplayer.gm & (MODE_MENU|MODE_DEMO)) == 0) && totalclock >= ototalclock+TICSPERFRAME) if (((g_netClient || g_netServer) || (myplayer.gm & (MODE_MENU|MODE_DEMO)) == 0) && totalclock >= ototalclock+TICSPERFRAME)
{ {
do do
{ {
if (g_networkMode != NET_DEDICATED_SERVER) ototalclock += TICSPERFRAME;
P_GetInput(myconnectindex);
// this is where we fill the input_t struct that is actually processed by P_ProcessInput()
auto const pPlayer = g_player[myconnectindex].ps;
auto const q16ang = fix16_to_int(pPlayer->q16ang);
auto & input = inputfifo[0][myconnectindex];
input = localInput;
input.fvel = mulscale9(localInput.fvel, sintable[(q16ang + 2560) & 2047]) +
mulscale9(localInput.svel, sintable[(q16ang + 2048) & 2047]);
input.svel = mulscale9(localInput.fvel, sintable[(q16ang + 2048) & 2047]) +
mulscale9(localInput.svel, sintable[(q16ang + 1536) & 2047]);
if (!FURY)
{ {
if (!frameJustDrawn) input.fvel += pPlayer->fric.x;
break; input.svel += pPlayer->fric.y;
frameJustDrawn = false;
P_GetInput(myconnectindex);
// this is where we fill the input_t struct that is actually processed by P_ProcessInput()
auto const pPlayer = g_player[myconnectindex].ps;
auto const q16ang = fix16_to_int(pPlayer->q16ang);
auto & input = inputfifo[0][myconnectindex];
input = localInput;
input.fvel = mulscale9(localInput.fvel, sintable[(q16ang + 2560) & 2047]) +
mulscale9(localInput.svel, sintable[(q16ang + 2048) & 2047]);
input.svel = mulscale9(localInput.fvel, sintable[(q16ang + 2048) & 2047]) +
mulscale9(localInput.svel, sintable[(q16ang + 1536) & 2047]);
if (!FURY)
{
input.fvel += pPlayer->fric.x;
input.svel += pPlayer->fric.y;
}
localInput = {};
} }
do localInput = {};
if (((!GUICapture && (myplayer.gm & MODE_MENU) != MODE_MENU) || ud.recstat == 2 || (g_netServer || ud.multimode > 1))
&& (myplayer.gm & MODE_GAME))
{ {
if (ready2send == 0) Net_GetPackets();
break; G_DoMoveThings();
ototalclock += TICSPERFRAME;
auto const moveClock = totalclock;
if (((!GUICapture && (myplayer.gm & MODE_MENU) != MODE_MENU) || ud.recstat == 2 || (g_netServer || ud.multimode > 1))
&& (myplayer.gm & MODE_GAME))
{
Net_GetPackets();
G_DoMoveThings();
}
// computing a tic is taking too long.
// rather than tightly spinning here, go draw a frame since we're fucked anyway
if ((int)(totalclock - moveClock) >= (TICSPERFRAME >> 1))
break;
} }
while (((g_netClient || g_netServer) || (myplayer.gm & (MODE_MENU | MODE_DEMO)) == 0) && (int)(totalclock - ototalclock) >= TICSPERFRAME); }
while (((g_netClient || g_netServer) || (myplayer.gm & (MODE_MENU | MODE_DEMO)) == 0) && (int)(totalclock - ototalclock) >= TICSPERFRAME);
gameUpdate = true; gameUpdate = true;
g_gameUpdateTime = timerGetHiTicks() - gameUpdateStartTime; g_gameUpdateTime = timerGetHiTicks() - gameUpdateStartTime;
if (g_gameUpdateAvgTime <= 0.0) if (g_gameUpdateAvgTime <= 0.0)
g_gameUpdateAvgTime = g_gameUpdateTime; g_gameUpdateAvgTime = g_gameUpdateTime;
g_gameUpdateAvgTime g_gameUpdateAvgTime
= ((GAMEUPDATEAVGTIMENUMSAMPLES - 1.f) * g_gameUpdateAvgTime + g_gameUpdateTime) / ((float)GAMEUPDATEAVGTIMENUMSAMPLES); = ((GAMEUPDATEAVGTIMENUMSAMPLES - 1.f) * g_gameUpdateAvgTime + g_gameUpdateTime) / ((float)GAMEUPDATEAVGTIMENUMSAMPLES);
} while (0);
} }
G_DoCheats(); G_DoCheats();
@ -6011,8 +5987,6 @@ MAIN_LOOP_RESTART:
if (gameUpdate) if (gameUpdate)
g_gameUpdateAndDrawTime = g_beforeSwapTime/* timerGetHiTicks()*/ - gameUpdateStartTime; g_gameUpdateAndDrawTime = g_beforeSwapTime/* timerGetHiTicks()*/ - gameUpdateStartTime;
frameJustDrawn = true;
} }
// handle CON_SAVE and CON_SAVENN // handle CON_SAVE and CON_SAVENN

49
source/rr/src/game.cpp
View file

@ -7411,17 +7411,13 @@ MAIN_LOOP_RESTART:
OSD_DispatchQueued(); OSD_DispatchQueued();
static bool frameJustDrawn;
char gameUpdate = false; char gameUpdate = false;
double const gameUpdateStartTime = timerGetHiTicks(); double const gameUpdateStartTime = timerGetHiTicks();
if (((g_netClient || g_netServer) || !(g_player[myconnectindex].ps->gm & (MODE_MENU|MODE_DEMO))) && totalclock >= ototalclock+TICSPERFRAME) if (((g_netClient || g_netServer) || !(g_player[myconnectindex].ps->gm & (MODE_MENU|MODE_DEMO))) && totalclock >= ototalclock+TICSPERFRAME)
{ {
do do
{ {
if (!frameJustDrawn) ototalclock += TICSPERFRAME;
break;
frameJustDrawn = false;
if (RRRA && g_player[myconnectindex].ps->on_motorcycle) if (RRRA && g_player[myconnectindex].ps->on_motorcycle)
P_GetInputMotorcycle(myconnectindex); P_GetInputMotorcycle(myconnectindex);
@ -7446,36 +7442,19 @@ MAIN_LOOP_RESTART:
g_player[myconnectindex].movefifoend++; g_player[myconnectindex].movefifoend++;
do if (((!GUICapture && (g_player[myconnectindex].ps->gm&MODE_MENU) != MODE_MENU) || ud.recstat == 2 || (g_netServer || ud.multimode > 1)) &&
{ (g_player[myconnectindex].ps->gm&MODE_GAME))
if (ready2send == 0) break; {
G_MoveLoop();
}
}
while (((g_netClient || g_netServer) || !(g_player[myconnectindex].ps->gm & (MODE_MENU|MODE_DEMO))) && (int)(totalclock - ototalclock) >= TICSPERFRAME);
ototalclock += TICSPERFRAME; gameUpdate = true;
g_gameUpdateTime = timerGetHiTicks()-gameUpdateStartTime;
int const moveClock = (int) totalclock; if (g_gameUpdateAvgTime < 0.f)
g_gameUpdateAvgTime = g_gameUpdateTime;
if (((!GUICapture && (g_player[myconnectindex].ps->gm&MODE_MENU) != MODE_MENU) || ud.recstat == 2 || (g_netServer || ud.multimode > 1)) && g_gameUpdateAvgTime = ((GAMEUPDATEAVGTIMENUMSAMPLES-1.f)*g_gameUpdateAvgTime+g_gameUpdateTime)/((float) GAMEUPDATEAVGTIMENUMSAMPLES);
(g_player[myconnectindex].ps->gm&MODE_GAME))
{
G_MoveLoop();
}
if (totalclock - moveClock >= TICSPERFRAME)
{
// computing a tic takes longer than a tic, so we're slowing
// the game down. rather than tightly spinning here, go draw
// a frame since we're fucked anyway
break;
}
}
while (((g_netClient || g_netServer) || !(g_player[myconnectindex].ps->gm & (MODE_MENU|MODE_DEMO))) && totalclock >= ototalclock+TICSPERFRAME);
gameUpdate = true;
g_gameUpdateTime = timerGetHiTicks()-gameUpdateStartTime;
if (g_gameUpdateAvgTime < 0.f)
g_gameUpdateAvgTime = g_gameUpdateTime;
g_gameUpdateAvgTime = ((GAMEUPDATEAVGTIMENUMSAMPLES-1.f)*g_gameUpdateAvgTime+g_gameUpdateTime)/((float) GAMEUPDATEAVGTIMENUMSAMPLES);
} while(0);
} }
G_DoCheats(); G_DoCheats();
@ -7515,8 +7494,6 @@ MAIN_LOOP_RESTART:
g_gameUpdateAndDrawTime = g_beforeSwapTime/* timerGetHiTicks()*/ - gameUpdateStartTime; g_gameUpdateAndDrawTime = g_beforeSwapTime/* timerGetHiTicks()*/ - gameUpdateStartTime;
} }
frameJustDrawn = true;
if (DEER) if (DEER)
sub_5A02C(); sub_5A02C();
} }