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uint64_t based FPS limiter

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git-svn-id: https://svn.eduke32.com/eduke32@6441 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2017-09-19 19:10:39 +00:00
parent 60d06d8757
commit 389c71e185
4 changed files with 11 additions and 10 deletions
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15
source/duke3d/src/game.cpp
View file

@ -120,7 +120,7 @@ int32_t hud_showmapname = 1;
int32_t g_levelTextTime = 0; int32_t g_levelTextTime = 0;
int32_t r_maxfps = 60; int32_t r_maxfps = 60;
uint32_t g_frameDelay = 17; uint64_t g_frameDelay = 17;
#if defined(RENDERTYPEWIN) && defined(USE_OPENGL) #if defined(RENDERTYPEWIN) && defined(USE_OPENGL)
extern char forcegl; extern char forcegl;
@ -6077,7 +6077,8 @@ void G_MaybeAllocPlayer(int32_t pnum)
int G_FPSLimit(void) int G_FPSLimit(void)
{ {
static uint32_t nextRender = 0, frameWaiting = 0; static uint64_t nextPageTicks = 0;
static int frameWaiting = 0;
if (frameWaiting) if (frameWaiting)
{ {
@ -6085,14 +6086,14 @@ int G_FPSLimit(void)
nextpage(); nextpage();
} }
uint32_t frameTime = getticks(); uint64_t const frameTicks = getu64ticks();
if (r_maxfps == 0 || frameTime >= nextRender) if (r_maxfps == 0 || frameTicks >= nextPageTicks)
{ {
if (frameTime > nextRender + g_frameDelay) if (frameTicks >= nextPageTicks + g_frameDelay)
nextRender = frameTime; nextPageTicks = frameTicks;
nextRender += g_frameDelay; nextPageTicks += g_frameDelay;
frameWaiting++; frameWaiting++;
return 1; return 1;

2
source/duke3d/src/game.h
View file

@ -290,7 +290,7 @@ extern int32_t MAXCACHE1DSIZE;
extern palette_t CrosshairColors; extern palette_t CrosshairColors;
extern palette_t DefaultCrosshairColors; extern palette_t DefaultCrosshairColors;
extern uint32_t g_frameDelay; extern uint64_t g_frameDelay;
int32_t A_CheckInventorySprite(spritetype *s); int32_t A_CheckInventorySprite(spritetype *s);
int32_t A_InsertSprite(int16_t whatsect, int32_t s_x, int32_t s_y, int32_t s_z, int16_t s_pn, int8_t s_s, uint8_t s_xr, int32_t A_InsertSprite(int16_t whatsect, int32_t s_x, int32_t s_y, int32_t s_z, int16_t s_pn, int8_t s_s, uint8_t s_xr,

2
source/duke3d/src/menus.cpp
View file

@ -2945,7 +2945,7 @@ static int32_t Menu_EntryOptionModify(MenuEntry_t *entry, int32_t newOption)
} }
else if (entry == &ME_VIDEOSETUP_FRAMELIMIT) else if (entry == &ME_VIDEOSETUP_FRAMELIMIT)
{ {
g_frameDelay = newOption ? Blrintf(1000.f/(float) newOption) : 0; g_frameDelay = newOption ? (getu64tickspersec()/newOption) : 0;
} }
switch (g_currentMenu) switch (g_currentMenu)

2
source/duke3d/src/osdcmds.cpp
View file

@ -1424,7 +1424,7 @@ static int32_t osdcmd_cvar_set_game(osdfuncparm_t const * const parm)
else if (!Bstrcasecmp(parm->name, "r_maxfps")) else if (!Bstrcasecmp(parm->name, "r_maxfps"))
{ {
if (r_maxfps != 0) r_maxfps = clamp(r_maxfps, 30, 1000); if (r_maxfps != 0) r_maxfps = clamp(r_maxfps, 30, 1000);
g_frameDelay = r_maxfps ? Blrintf(1000.f/(float)r_maxfps) : 0; g_frameDelay = r_maxfps ? (getu64tickspersec()/r_maxfps) : 0;
} }
else if (!Bstrcasecmp(parm->name, "r_ambientlight")) else if (!Bstrcasecmp(parm->name, "r_ambientlight"))
{ {