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#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <gui/LayerMetadata.h>
#include "TestableSurfaceFlinger.h"
namespace android {
using testing::_;
using testing::Return;
class SurfaceFlingerUpdateLayerMetadataSnapshotTest : public testing::Test {
public:
SurfaceFlingerUpdateLayerMetadataSnapshotTest() { mFlinger.setupMockScheduler(); }
protected:
sp<Layer> createLayer(const char* name, LayerMetadata& inOutlayerMetadata) {
LayerCreationArgs args =
LayerCreationArgs{mFlinger.flinger(), nullptr, name, 0, inOutlayerMetadata};
inOutlayerMetadata = args.metadata;
return sp<Layer>::make(args);
}
TestableSurfaceFlinger mFlinger;
};
class LayerMetadataBuilder {
public:
LayerMetadataBuilder(LayerMetadata layerMetadata = {}) : mLayerMetadata(layerMetadata) {}
LayerMetadataBuilder& setInt32(uint32_t key, int32_t value) {
mLayerMetadata.setInt32(key, value);
return *this;
}
LayerMetadata build() { return mLayerMetadata; }
private:
LayerMetadata mLayerMetadata;
};
bool operator==(const LayerMetadata& lhs, const LayerMetadata& rhs) {
return lhs.mMap == rhs.mMap;
}
std::ostream& operator<<(std::ostream& stream, const LayerMetadata& layerMetadata) {
stream << "LayerMetadata{";
for (auto it = layerMetadata.mMap.cbegin(); it != layerMetadata.mMap.cend(); it++) {
if (it != layerMetadata.mMap.cbegin()) {
stream << ", ";
}
stream << layerMetadata.itemToString(it->first, ":");
}
return stream << "}";
}
// Test that the snapshot's layer metadata is set.
TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesSnapshotMetadata) {
auto layerMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 1).build();
auto layer = createLayer("layer", layerMetadata);
mFlinger.mutableDrawingState().layersSortedByZ.add(layer);
mFlinger.updateLayerMetadataSnapshot();
EXPECT_EQ(layer->getLayerSnapshot()->layerMetadata, layerMetadata);
}
// Test that snapshot layer metadata is set by merging the child's metadata on top of its
// parent's metadata.
TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, mergesSnapshotMetadata) {
auto layerAMetadata = LayerMetadataBuilder()
.setInt32(METADATA_OWNER_UID, 1)
.setInt32(METADATA_TASK_ID, 2)
.build();
auto layerA = createLayer("parent", layerAMetadata);
auto layerBMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 3).build();
auto layerB = createLayer("child", layerBMetadata);
layerA->addChild(layerB);
layerA->commitChildList();
mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
mFlinger.updateLayerMetadataSnapshot();
EXPECT_EQ(layerA->getLayerSnapshot()->layerMetadata, layerAMetadata);
auto expectedChildMetadata =
LayerMetadataBuilder(layerAMetadata).setInt32(METADATA_TASK_ID, 3).build();
EXPECT_EQ(layerB->getLayerSnapshot()->layerMetadata, expectedChildMetadata);
}
// Test that snapshot relative layer metadata is set to the parent's layer metadata merged on top of
// that parent's relative layer metadata.
TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesRelativeMetadata) {
auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 1).build();
auto layerA = createLayer("relative-parent", layerAMetadata);
auto layerAHandle = layerA->getHandle();
auto layerBMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 2).build();
auto layerB = createLayer("relative-child", layerBMetadata);
layerB->setRelativeLayer(layerAHandle, 1);
mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
mFlinger.mutableDrawingState().layersSortedByZ.add(layerB);
mFlinger.updateLayerMetadataSnapshot();
EXPECT_EQ(layerA->getLayerSnapshot()->relativeLayerMetadata, LayerMetadata{});
EXPECT_EQ(layerB->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
}
// Test that snapshot relative layer metadata is set correctly when a layer is interleaved within
// two other layers.
//
// Layer
// A
// / \
// B D
// /
// C
//
// Z-order Relatives
// B <- D <- C
TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest, updatesRelativeMetadataInterleaved) {
auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_OWNER_UID, 1).build();
auto layerA = createLayer("layer-a", layerAMetadata);
auto layerBMetadata = LayerMetadataBuilder()
.setInt32(METADATA_TASK_ID, 2)
.setInt32(METADATA_OWNER_PID, 3)
.build();
auto layerB = createLayer("layer-b", layerBMetadata);
auto layerBHandle = layerB->getHandle();
LayerMetadata layerCMetadata;
auto layerC = createLayer("layer-c", layerCMetadata);
auto layerDMetadata = LayerMetadataBuilder().setInt32(METADATA_TASK_ID, 4).build();
auto layerD = createLayer("layer-d", layerDMetadata);
auto layerDHandle = layerD->getHandle();
layerB->addChild(layerC);
layerA->addChild(layerB);
layerA->addChild(layerD);
layerC->setRelativeLayer(layerDHandle, 1);
layerD->setRelativeLayer(layerBHandle, 1);
layerA->commitChildList();
mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
mFlinger.updateLayerMetadataSnapshot();
auto expectedLayerDRelativeMetadata =
LayerMetadataBuilder()
// From layer A, parent of relative parent
.setInt32(METADATA_OWNER_UID, 1)
// From layer B, relative parent
.setInt32(METADATA_TASK_ID, 2)
.setInt32(METADATA_OWNER_PID, 3)
// added by layer creation args
.setInt32(gui::METADATA_CALLING_UID,
layerDMetadata.getInt32(gui::METADATA_CALLING_UID, 0))
.build();
EXPECT_EQ(layerD->getLayerSnapshot()->relativeLayerMetadata, expectedLayerDRelativeMetadata);
auto expectedLayerCRelativeMetadata =
LayerMetadataBuilder()
// From layer A, parent of relative parent
.setInt32(METADATA_OWNER_UID, 1)
// From layer B, relative parent of relative parent
.setInt32(METADATA_OWNER_PID, 3)
// From layer D, relative parent
.setInt32(METADATA_TASK_ID, 4)
// added by layer creation args
.setInt32(gui::METADATA_CALLING_UID,
layerDMetadata.getInt32(gui::METADATA_CALLING_UID, 0))
.build();
EXPECT_EQ(layerC->getLayerSnapshot()->relativeLayerMetadata, expectedLayerCRelativeMetadata);
}
TEST_F(SurfaceFlingerUpdateLayerMetadataSnapshotTest,
updatesRelativeMetadataMultipleRelativeChildren) {
auto layerAMetadata = LayerMetadataBuilder().setInt32(METADATA_OWNER_UID, 1).build();
auto layerA = createLayer("layer-a", layerAMetadata);
auto layerAHandle = layerA->getHandle();
LayerMetadata layerBMetadata;
auto layerB = createLayer("layer-b", layerBMetadata);
LayerMetadata layerCMetadata;
auto layerC = createLayer("layer-c", layerCMetadata);
layerB->setRelativeLayer(layerAHandle, 1);
layerC->setRelativeLayer(layerAHandle, 2);
layerA->commitChildList();
mFlinger.mutableDrawingState().layersSortedByZ.add(layerA);
mFlinger.mutableDrawingState().layersSortedByZ.add(layerB);
mFlinger.mutableDrawingState().layersSortedByZ.add(layerC);
mFlinger.updateLayerMetadataSnapshot();
EXPECT_EQ(layerA->getLayerSnapshot()->relativeLayerMetadata, LayerMetadata{});
EXPECT_EQ(layerB->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
EXPECT_EQ(layerC->getLayerSnapshot()->relativeLayerMetadata, layerAMetadata);
}
} // namespace android
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