commit 95f669a30a74fa519dc9dc760a099d977ebee567
author Sally Qi <sallyqi@google.com> Tue Aug 27 11:31:42 2024 -0700
committer Sally Qi <sallyqi@google.com> Thu Oct 03 22:14:32 2024 -0700
tree 515ab432d63d7c2177b1b4dc0c60427d8fdc3943
parent 9a4c026c402afc2f49856ca6d01f8c6d50a9a56f

[Lut HAL backend] implementation

- Add Lut in HWComposer::DeviceRequestedChanges
- parse lutProperties into overlayProperties
- Add a mapper <layer*, pfd> to store lut fd to avoid dup() ops if
  passing the fds into callees.
- SurfaceComposerClient::Transaction::setLuts interface

Bug: 329472100
Test: builds
Flag: NONE HAL backend interface change
Change-Id: Ib2993ce1eab66ab456388c0d15b032201eac7e91

services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp

diff --git a/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp b/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
index 091c207..07bbb00 100644
--- a/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
@@ -37,6 +37,7 @@
 #pragma clang diagnostic pop // ignored "-Wconversion"
 
 using aidl::android::hardware::graphics::composer3::Composition;
+using aidl::android::hardware::graphics::composer3::LutProperties;
 
 namespace android::compositionengine {
 
@@ -844,6 +845,12 @@
     }
 }
 
+void OutputLayer::applyDeviceLayerLut(LutProperties /*lutProperties*/,
+                                      ndk::ScopedFileDescriptor /*lutPfd*/) {
+    // TODO(b/329472856): decode the shared memory of the pfd, and store the lut data into
+    // OutputLayerCompositionState#hwc struct
+}
+
 bool OutputLayer::needsFiltering() const {
     const auto& state = getState();
     const auto& sourceCrop = state.sourceCrop;