hwc: Add binder API to disable screen updates
When the display is put in calibration mode by postprocessing
tools such as QDCM, the pipes are taken over and updates need to
be blocked.
Change-Id: I413caf40ad0a7ccdd43a3167bd7e3415e8bc8b55
diff --git a/libhwcomposer/hwc_qclient.cpp b/libhwcomposer/hwc_qclient.cpp
index add5dc8..1a29b89 100644
--- a/libhwcomposer/hwc_qclient.cpp
+++ b/libhwcomposer/hwc_qclient.cpp
@@ -313,6 +313,23 @@
return NO_ERROR;
}
+static void toggleScreenUpdate(hwc_context_t* ctx, uint32_t on) {
+ ALOGD("%s: toggle update: %d", __FUNCTION__, on);
+ Locker::Autolock _sl(ctx->mDrawLock);
+ if (on == 0) {
+ ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isPause = true;
+ ctx->mOverlay->configBegin();
+ ctx->mOverlay->configDone();
+ ctx->mRotMgr->clear();
+ if(!Overlay::displayCommit(ctx->dpyAttr[0].fd)) {
+ ALOGE("%s: Display commit failed", __FUNCTION__);
+ }
+ } else {
+ ctx->dpyAttr[HWC_DISPLAY_PRIMARY].isPause = false;
+ ctx->proc->invalidate(ctx->proc);
+ }
+}
+
status_t QClient::notifyCallback(uint32_t command, const Parcel* inParcel,
Parcel* outParcel) {
status_t ret = NO_ERROR;
@@ -369,6 +386,9 @@
case IQService::CONFIGURE_DYN_REFRESH_RATE:
configureDynRefreshRate(mHwcContext, inParcel);
break;
+ case IQService::TOGGLE_SCREEN_UPDATE:
+ toggleScreenUpdate(mHwcContext, inParcel->readInt32());
+ break;
default:
ret = NO_ERROR;
}