[client] overlay: add 25Hz tick function

This allows an overlay to manage itself for timed events like
alerts/messages, etc.
This commit is contained in:
Geoffrey McRae 2022-01-08 14:06:35 +11:00
parent 35334333ac
commit db2e38ae4d
4 changed files with 51 additions and 9 deletions

View File

@ -59,6 +59,15 @@ struct LG_OverlayOps
int (*render)(void * udata, bool interactive, struct Rect * windowRects,
int maxRects);
/* called 25 times a second by the application
*
* Note: This may not run in the same context as `render`!
*
* return true if the frame needs to be rendered
* optional, if omitted assumes false
*/
bool (*tick)(void * udata, unsigned long long tickCount);
/* TODO: add load/save settings capabillity */
};

View File

@ -519,6 +519,10 @@ void app_invalidateWindow(bool full)
{
if (full)
atomic_store(&g_state.invalidateWindow, true);
if (g_state.jitRender && g_state.ds->stopWaitFrame)
g_state.ds->stopWaitFrame();
lgSignalEvent(g_state.frameEvent);
}
@ -691,15 +695,6 @@ void app_unregisterGraph(GraphHandle handle)
overlayGraph_unregister(handle);
}
struct Overlay
{
const struct LG_OverlayOps * ops;
const void * params;
void * udata;
int lastRectCount;
struct Rect lastRects[MAX_OVERLAY_RECTS];
};
void app_registerOverlay(const struct LG_OverlayOps * ops, const void * params)
{
ASSERT_LG_OVERLAY_VALID(ops);

View File

@ -139,6 +139,26 @@ static bool fpsTimerFn(void * unused)
return true;
}
static bool tickTimerFn(void * unused)
{
static unsigned long long tickCount = 0;
bool needsRender = false;
struct Overlay * overlay;
for (ll_reset(g_state.overlays);
ll_walk(g_state.overlays, (void **)&overlay); )
{
if (overlay->ops->tick && overlay->ops->tick(overlay->udata, tickCount))
needsRender = true;
}
if (needsRender)
app_invalidateWindow(false);
++tickCount;
return true;
}
static void preSwapCallback(void * udata)
{
const uint64_t * renderStart = (const uint64_t *)udata;
@ -169,6 +189,14 @@ static int renderThread(void * unused)
return 1;
}
LGTimer * tickTimer;
if (!lgCreateTimer(40, tickTimerFn, NULL, &tickTimer))
{
lgTimerDestroy(fpsTimer);
DEBUG_ERROR("Failed to create the tick timer");
return 1;
}
LG_LOCK_INIT(g_state.lgrLock);
/* signal to other threads that the renderer is ready */
@ -289,6 +317,7 @@ static int renderThread(void * unused)
g_state.state = APP_STATE_SHUTDOWN;
lgTimerDestroy(tickTimer);
lgTimerDestroy(fpsTimer);
core_stopCursorThread();

View File

@ -23,6 +23,15 @@
#include "interface/overlay.h"
struct Overlay
{
const struct LG_OverlayOps * ops;
const void * params;
void * udata;
int lastRectCount;
struct Rect lastRects[MAX_OVERLAY_RECTS];
};
extern struct LG_OverlayOps LGOverlayAlert;
extern struct LG_OverlayOps LGOverlayFPS;
extern struct LG_OverlayOps LGOverlayGraphs;