[Lut HAL backend] implementation 3rd patch.
- interpret the lut and pass them into shader.
Bug: 329472856
Test: builds
Flag: EXEMPT no flag needed
Change-Id: I005600593f4a369130bf8bcaea69300758b5ae03
diff --git a/libs/gui/Android.bp b/libs/gui/Android.bp
index 80e148b..1e33abb 100644
--- a/libs/gui/Android.bp
+++ b/libs/gui/Android.bp
@@ -274,6 +274,7 @@
"LayerMetadata.cpp",
"LayerStatePermissions.cpp",
"LayerState.cpp",
+ "DisplayLuts.cpp",
"OccupancyTracker.cpp",
"StreamSplitter.cpp",
"ScreenCaptureResults.cpp",
diff --git a/libs/gui/DisplayLuts.cpp b/libs/gui/DisplayLuts.cpp
new file mode 100644
index 0000000..8042976
--- /dev/null
+++ b/libs/gui/DisplayLuts.cpp
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "include/gui/DisplayLuts.h"
+#include <gui/DisplayLuts.h>
+#include <private/gui/ParcelUtils.h>
+
+namespace android::gui {
+
+status_t DisplayLuts::Entry::readFromParcel(const android::Parcel* parcel) {
+ if (parcel == nullptr) {
+ ALOGE("%s: Null parcel", __func__);
+ return BAD_VALUE;
+ }
+
+ SAFE_PARCEL(parcel->readInt32, &dimension);
+ SAFE_PARCEL(parcel->readInt32, &size);
+ SAFE_PARCEL(parcel->readInt32, &samplingKey);
+
+ return OK;
+}
+
+status_t DisplayLuts::Entry::writeToParcel(android::Parcel* parcel) const {
+ if (parcel == nullptr) {
+ ALOGE("%s: Null parcel", __func__);
+ return BAD_VALUE;
+ }
+
+ SAFE_PARCEL(parcel->writeInt32, dimension);
+ SAFE_PARCEL(parcel->writeInt32, size);
+ SAFE_PARCEL(parcel->writeInt32, samplingKey);
+
+ return OK;
+}
+
+status_t DisplayLuts::readFromParcel(const android::Parcel* parcel) {
+ if (parcel == nullptr) {
+ ALOGE("%s: Null parcel", __func__);
+ return BAD_VALUE;
+ }
+
+ SAFE_PARCEL(parcel->readUniqueFileDescriptor, &fd);
+ SAFE_PARCEL(parcel->readInt32Vector, &offsets);
+ int32_t numLutProperties;
+ SAFE_PARCEL(parcel->readInt32, &numLutProperties);
+ lutProperties.reserve(numLutProperties);
+ for (int32_t i = 0; i < numLutProperties; i++) {
+ lutProperties.push_back({});
+ SAFE_PARCEL(lutProperties.back().readFromParcel, parcel);
+ }
+ return OK;
+}
+
+status_t DisplayLuts::writeToParcel(android::Parcel* parcel) const {
+ if (parcel == nullptr) {
+ ALOGE("%s: Null parcel", __func__);
+ return BAD_VALUE;
+ }
+
+ SAFE_PARCEL(parcel->writeUniqueFileDescriptor, fd);
+ SAFE_PARCEL(parcel->writeInt32Vector, offsets);
+ SAFE_PARCEL(parcel->writeInt32, static_cast<int32_t>(lutProperties.size()));
+ for (auto& entry : lutProperties) {
+ SAFE_PARCEL(entry.writeToParcel, parcel);
+ }
+ return OK;
+}
+} // namespace android::gui
\ No newline at end of file
diff --git a/libs/gui/LayerState.cpp b/libs/gui/LayerState.cpp
index 4b53134..139764a 100644
--- a/libs/gui/LayerState.cpp
+++ b/libs/gui/LayerState.cpp
@@ -203,6 +203,12 @@
SAFE_PARCEL(output.writeParcelable, *bufferReleaseChannel);
}
+ const bool hasLuts = (luts != nullptr);
+ SAFE_PARCEL(output.writeBool, hasLuts);
+ if (hasLuts) {
+ SAFE_PARCEL(output.writeParcelable, *luts);
+ }
+
return NO_ERROR;
}
@@ -358,6 +364,15 @@
SAFE_PARCEL(input.readParcelable, bufferReleaseChannel.get());
}
+ bool hasLuts;
+ SAFE_PARCEL(input.readBool, &hasLuts);
+ if (hasLuts) {
+ luts = std::make_shared<gui::DisplayLuts>();
+ SAFE_PARCEL(input.readParcelable, luts.get());
+ } else {
+ luts = nullptr;
+ }
+
return NO_ERROR;
}
diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 3260c53..807f850 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -1971,9 +1971,13 @@
return *this;
}
- s->luts = std::make_shared<gui::DisplayLuts>(base::unique_fd(dup(lutFd.get())), offsets,
- dimensions, sizes, samplingKeys);
s->what |= layer_state_t::eLutsChanged;
+ if (lutFd.ok()) {
+ s->luts = std::make_shared<gui::DisplayLuts>(base::unique_fd(dup(lutFd.get())), offsets,
+ dimensions, sizes, samplingKeys);
+ } else {
+ s->luts = nullptr;
+ }
registerSurfaceControlForCallback(sc);
return *this;
diff --git a/libs/gui/include/gui/DisplayLuts.h b/libs/gui/include/gui/DisplayLuts.h
index 16a360d..ab86ac4 100644
--- a/libs/gui/include/gui/DisplayLuts.h
+++ b/libs/gui/include/gui/DisplayLuts.h
@@ -16,16 +16,24 @@
#pragma once
#include <android-base/unique_fd.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
#include <vector>
namespace android::gui {
-struct DisplayLuts {
+struct DisplayLuts : public Parcelable {
public:
- struct Entry {
+ struct Entry : public Parcelable {
+ Entry() {};
+ Entry(int32_t lutDimension, int32_t lutSize, int32_t lutSamplingKey)
+ : dimension(lutDimension), size(lutSize), samplingKey(lutSamplingKey) {}
int32_t dimension;
int32_t size;
int32_t samplingKey;
+
+ status_t writeToParcel(android::Parcel* parcel) const override;
+ status_t readFromParcel(const android::Parcel* parcel) override;
};
DisplayLuts() {}
@@ -42,7 +50,10 @@
}
}
- base::unique_fd& getLutFileDescriptor() { return fd; }
+ status_t writeToParcel(android::Parcel* parcel) const override;
+ status_t readFromParcel(const android::Parcel* parcel) override;
+
+ const base::unique_fd& getLutFileDescriptor() const { return fd; }
std::vector<Entry> lutProperties;
std::vector<int32_t> offsets;