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[client] main: implement just-in-time render mode

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When requested, JIT render mode will be used if the display server supports it.
Otherwise, a warning is generated instead.

This essentially uses the signalNextFrame logic for imgui, but for everything.
We automatically enable this mode when overlay is on.

Currently, this exposes some damage tracking bugs in the EGL renderer.
This commit is contained in:
Quantum
2021-07-31 20:07:05 -04:00
committed by Geoffrey McRae
parent b9a7ce17fe
commit aed370c7ce
3 changed files with 40 additions and 17 deletions
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40
client/src/main.c
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@@ -167,8 +167,8 @@ static int renderThread(void * unused)
while(g_state.state != APP_STATE_SHUTDOWN)
{
if (g_state.overlayMustWait)
lgWaitEvent(g_state.overlayRenderEvent, TIMEOUT_INFINITE);
if (g_state.jitRender)
lgWaitEvent(g_state.jitEvent, TIMEOUT_INFINITE);
else if (g_params.fpsMin != 0)
{
float ups = atomic_load_explicit(&g_state.ups, memory_order_relaxed);
@@ -182,13 +182,11 @@ static int renderThread(void * unused)
}
}
if (g_state.overlayInput && g_state.ds->signalNextFrame)
{
g_state.ds->signalNextFrame(g_state.overlayRenderEvent);
g_state.overlayMustWait = true;
}
else
g_state.overlayMustWait = false;
if (!g_params.jitRender && g_state.ds->signalNextFrame)
g_state.jitRender = g_state.overlayInput;
if (g_state.jitRender)
g_state.ds->signalNextFrame(g_state.jitEvent);
int resize = atomic_load(&g_state.lgrResize);
if (resize)
@@ -828,6 +826,14 @@ static int lg_run(void)
assert(g_state.ds);
ASSERT_LG_DS_VALID(g_state.ds);
if (g_params.jitRender)
{
if (g_state.ds->signalNextFrame)
g_state.jitRender = true;
else
DEBUG_WARN("JIT render not supported on display server backend, disabled");
}
// init the subsystem
if (!g_state.ds->earlyInit())
{
@@ -979,12 +985,18 @@ static int lg_run(void)
return -1;
}
if (!(g_state.overlayRenderEvent = lgCreateEvent(true, 0)))
if (!(g_state.jitEvent = lgCreateEvent(true, 0)))
{
DEBUG_ERROR("failed to create the overlay render event");
return -1;
}
if (g_state.jitRender)
{
DEBUG_INFO("Using JIT render mode");
lgSignalEvent(g_state.jitEvent);
}
lgInit();
// start the renderThread so we don't just display junk
@@ -1136,6 +1148,8 @@ restart:
goto restart;
}
lgSignalEvent(g_state.jitEvent);
return 0;
}
@@ -1164,10 +1178,10 @@ static void lg_shutdown(void)
g_state.frameEvent = NULL;
}
if (g_state.overlayRenderEvent)
if (g_state.jitEvent)
{
lgFreeEvent(g_state.overlayRenderEvent);
g_state.overlayRenderEvent = NULL;
lgFreeEvent(g_state.jitEvent);
g_state.jitEvent = NULL;
}
if (e_startup)