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faster map loads by limiting the rendering back-end's frame-rate

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myT 2018-12-08 22:43:58 +01:00
parent 51cda86421
commit a26b150c59
6 changed files with 39 additions and 0 deletions
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2
changelog.txt
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@ -16,6 +16,8 @@ add: /toggle can now accept a value sequence (2 or more entries) to loop through
if the cvar's current value is in the sequence and not in the last spot, the next one is used
otherwise, the first value in the sequence is used
chg: faster map loads by limiting the rendering back-end's frame-rate
chg: on Windows, the upper limit of open stdio file handles was raised from 512 to 2048
fix: the last byte of a maximum length bitstream string wasn't parsed ("q3msgboom")

2
code/client/cl_cgame.cpp
View file

@ -687,7 +687,9 @@ void CL_InitCGame()
// init for this gamestate
// use the lastExecutedServerCommand instead of the serverCommandSequence
// otherwise server commands sent just before a gamestate are dropped
re.SetMaxFPS( 10 );
VM_Call( cgvm, CG_INIT, clc.serverMessageSequence, clc.lastExecutedServerCommand, clc.clientNum );
re.SetMaxFPS( 0 );
// send a usercmd this frame, which will cause the server to send us the first snapshot
cls.state = CA_PRIMED;

6
code/renderer/tr_cmds.cpp
View file

@ -247,6 +247,12 @@ void RE_EndFrame( int* pcFE, int* pc2D, int* pc3D, qbool render )
if (!tr.registered)
return;
if (tr.maxFPS > 0) {
if (Sys_Milliseconds() < tr.nextFrameTimeMS)
return;
tr.nextFrameTimeMS += 1000 / tr.maxFPS;
}
qbool delayScreenshot = qfalse;
if ( !render && r_delayedScreenshotPending )
render = qtrue;

19
code/renderer/tr_init.cpp
View file

@ -741,6 +741,23 @@ static int RE_GetCameraMatrixTime()
}
static void RE_SetMaxFPS( int maxFPS )
{
if (maxFPS > 0 && tr.maxFPS == 0) {
tr.maxFPS = maxFPS;
tr.nextFrameTimeMS = Sys_Milliseconds() + 1000 / maxFPS;
tr.oldSwapInterval = r_swapInterval->integer;
ri.Cvar_Set(r_swapInterval->name, "0");
} else if (maxFPS == 0 && tr.maxFPS > 0) {
tr.maxFPS = 0;
ri.Cvar_Set(r_swapInterval->name, va("%i", tr.oldSwapInterval));
} else if (maxFPS > 0 && tr.maxFPS > 0) {
tr.maxFPS = maxFPS;
tr.nextFrameTimeMS = Sys_Milliseconds() + 1000 / maxFPS;
}
}
const refexport_t* GetRefAPI( const refimport_t* rimp )
{
static refexport_t re;
@ -790,5 +807,7 @@ const refexport_t* GetRefAPI( const refimport_t* rimp )
re.GetCameraMatrixTime = RE_GetCameraMatrixTime;
re.SetMaxFPS = RE_SetMaxFPS;
return &re;
}

5
code/renderer/tr_local.h
View file

@ -912,6 +912,11 @@ typedef struct {
float sawToothTable[FUNCTABLE_SIZE];
float inverseSawToothTable[FUNCTABLE_SIZE];
float fogTable[FOG_TABLE_SIZE];
// back-end frame-rate limiting, useful for scenarios like CGAME_INIT
int maxFPS; // only active if > 0
int nextFrameTimeMS;
int oldSwapInterval;
} trGlobals_t;
extern backEndState_t backEnd;

5
code/renderer/tr_public.h
View file

@ -163,6 +163,11 @@ typedef struct {
// when the final model-view matrix is computed, for cl_drawMouseLag
int (*GetCameraMatrixTime)();
// used for setting low frame-rates temporarily only (e.g. map loads)
// maxFPS > 0 -> throttles frame-rate, disables v-sync
// maxFPS = 0 -> no throttling , restores v-sync to whatever it was
void (*SetMaxFPS)( int maxFPS );
} refexport_t;
//