Integrate HWUI with PerformanceHintManager
PerformanceHintManager.Session is in java, so add JNI and a HintSessionWrapper
class in HardwareRenderer. Then pass the two calls as two std::functions
into DrawFrameTask.
Note Session is created per HardwareRenderer, not global (per
RenderThread).
Session includes UI thread, render thread, and the thread pool.
Desired duration is from the intended start duration to the frame
deadline. Add an actual frame start time to compute
Add system properties:
debug.hwui.use_hint_manager to enable PerformanceHintManager
debug.hwui.target_cpu_time_percent to control percentage of frame time
to be used for target cpu duration.
Test: Manual test that there are no crashes and values make sense.
Bug: 158791282
Change-Id: I83f25433c10daa20033803fb7c4ae45eab34f1d3
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index ea9cbd5..1cb87be 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -158,6 +158,20 @@
#define PROPERTY_CAPTURE_SKP_FILENAME "debug.hwui.skp_filename"
/**
+ * Controls whether HWUI will send timing hints to HintManager for
+ * better CPU scheduling. Accepted values are "true" and "false".
+ */
+#define PROPERTY_USE_HINT_MANAGER "debug.hwui.use_hint_manager"
+
+/**
+ * Percentage of frame time that's used for CPU work. The rest is
+ * reserved for GPU work. This is used with use_hint_manager to
+ * provide timing hints to HintManager. Accepted values are
+ * integer from 1-100.
+ */
+#define PROPERTY_TARGET_CPU_TIME_PERCENTAGE "debug.hwui.target_cpu_time_percent"
+
+/**
* Property for whether this is running in the emulator.
*/
#define PROPERTY_IS_EMULATOR "ro.boot.qemu"
@@ -253,6 +267,9 @@
static float defaultSdrWhitePoint;
+ static bool useHintManager;
+ static int targetCpuTimePercentage;
+
private:
static ProfileType sProfileType;
static bool sDisableProfileBars;