Add a backdoor to change FrameTimeline's maxDisplayFrames
This change adds a backdoor entry through SurfaceFlinger to allow
modifying the max number of display frames stored in FrameTimeline. This
is particularly useful for debugging, enabling to take a trace as well
see the dump on the side.
Bug: 169894383
Test: libsurfaceflinger_unittest
Change-Id: I872e240597193d597dac4a9f096b6360edf5cce1
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 738e056..d069f2b 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -499,6 +499,8 @@
}
static const int MAX_TRACING_MEMORY = 100 * 1024 * 1024; // 100MB
+ // Maximum allowed number of display frames that can be set through backdoor
+ static const int MAX_ALLOWED_DISPLAY_FRAMES = 2048;
// Implements IBinder.
status_t onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) override;