start VSYNC thread when HWC doesn't handle it (3a778713) · Commits · e / os / android_frameworks_native

services/surfaceflinger/DisplayHardware/HWComposer.cpp

+14 −9

Original line number	Diff line number	Diff line
		@@ -53,6 +53,7 @@ HWComposer::HWComposer(
		mEventHandler(handler),
		mRefreshPeriod(refreshPeriod), mVSyncCount(0)
		{
		bool needVSyncThread = false;
		int err = hw_get_module(HWC_HARDWARE_MODULE_ID, &mModule);
		ALOGW_IF(err, "%s module not found", HWC_HARDWARE_MODULE_ID);
		if (err == 0) {
		@@ -67,12 +68,17 @@ HWComposer::HWComposer(
		mHwc->registerProcs(mHwc, &mCBContext.procs);
		memset(mCBContext.procs.zero, 0, sizeof(mCBContext.procs.zero));
		}

		if (mHwc->common.version < HWC_DEVICE_API_VERSION_0_3) {
		// we don't have VSYNC support, we need to fake it
		mVSyncThread = new VSyncThread(*this);
		needVSyncThread = true;
		}
		}
		} else {
		needVSyncThread = true;
		}

		if (needVSyncThread) {
		// we don't have VSYNC support, we need to fake it
		mVSyncThread = new VSyncThread(*this);
		}
		}

		@@ -111,13 +117,12 @@ status_t HWComposer::eventControl(int event, int enabled) {
		status_t err = NO_ERROR;
		if (mHwc && mHwc->common.version >= HWC_DEVICE_API_VERSION_0_3) {
		err = mHwc->methods->eventControl(mHwc, event, enabled);
		} else {
		if (mVSyncThread != NULL) {
		mVSyncThread->setEnabled(enabled);
		} else {
		err = BAD_VALUE;
		}

		if (err == NO_ERROR && mVSyncThread != NULL) {
		mVSyncThread->setEnabled(enabled);
		}

		return err;
		}