commit 88a905b9aff600150916a644d5bfd01a31c0ba82
author Madhuri Athota <mathota@codeaurora.org> Thu May 04 16:58:15 2017 +0530
committer Matthew Bouyack <mbouyack@google.com> Thu Jan 18 22:35:52 2018 +0000
tree bc0197eaf0fd1084234d69e014dbade0b324e1d7
parent 7f96780bc978d7eeba4b9ab51c13a371161927ab

SurfaceFlinger: Change to support client target flip

- Add support to flip framebuffer target if
  HWC2 implementation requests for it.

b/38114488
b/68271386
CRs-Fixed: 2057401
Change-Id: I91422ef60a139cbaf491db219b216cd1252e7e63
Signed-off-by: Madhuri Athota <mathota@codeaurora.org>

services/surfaceflinger/DisplayHardware/HWComposer.cpp

diff --git a/services/surfaceflinger/DisplayHardware/HWComposer.cpp b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
index c0f8f96..7850243 100644
--- a/services/surfaceflinger/DisplayHardware/HWComposer.cpp
+++ b/services/surfaceflinger/DisplayHardware/HWComposer.cpp
@@ -565,6 +565,20 @@
     return mDisplayData[displayId].hasDeviceComposition;
 }
 
+bool HWComposer::hasFlipClientTargetRequest(int32_t displayId) const {
+    if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {
+        // Displays without a corresponding HWC display are never composed by
+        // the device
+        return false;
+    }
+    if (!isValidDisplay(displayId)) {
+        ALOGE("hasFlipClientTargetRequest: Invalid display %d", displayId);
+        return false;
+    }
+    return ((static_cast<uint32_t>(mDisplayData[displayId].displayRequests) &
+             static_cast<uint32_t>(HWC2::DisplayRequest::FlipClientTarget)) != 0);
+}
+
 bool HWComposer::hasClientComposition(int32_t displayId) const {
     if (displayId == DisplayDevice::DISPLAY_ID_INVALID) {
         // Displays without a corresponding HWC display are always composed by