Merge "ProjectionSpace fixes for caching:" into sc-dev
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/ProjectionSpace.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/ProjectionSpace.h
index 7ca91d8..58bb41a 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/ProjectionSpace.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/ProjectionSpace.h
@@ -96,6 +96,11 @@
         // physical translation and finally rotate to the physical orientation.
         return rotationTransform * destTranslation * scale * sourceTranslation;
     }
+
+    bool operator==(const ProjectionSpace& other) const {
+        return bounds == other.bounds && content == other.content &&
+                orientation == other.orientation;
+    }
 };
 
 } // namespace compositionengine
diff --git a/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp b/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp
index 5f26817..4cf83d9 100644
--- a/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/planner/CachedSet.cpp
@@ -158,11 +158,12 @@
     const ui::Dataspace& outputDataspace = outputState.dataspace;
     const ui::Transform::RotationFlags orientation =
             ui::Transform::toRotationFlags(outputState.framebufferSpace.orientation);
+
     renderengine::DisplaySettings displaySettings{
-            .physicalDisplay =
-                    Rect(-mBounds.left, -mBounds.top,
-                         -mBounds.left + outputState.framebufferSpace.content.getWidth(),
-                         -mBounds.top + outputState.framebufferSpace.content.getHeight()),
+            .physicalDisplay = Rect(-mBounds.left + outputState.framebufferSpace.content.left,
+                                    -mBounds.top + outputState.framebufferSpace.content.top,
+                                    -mBounds.left + outputState.framebufferSpace.content.right,
+                                    -mBounds.top + outputState.framebufferSpace.content.bottom),
             .clip = viewport,
             .outputDataspace = outputDataspace,
             .orientation = orientation,
@@ -249,9 +250,7 @@
 
     if (result == NO_ERROR) {
         mDrawFence = new Fence(drawFence.release());
-        mOutputSpace = ProjectionSpace(ui::Size(outputState.framebufferSpace.bounds.getWidth(),
-                                                outputState.framebufferSpace.bounds.getHeight()),
-                                       mBounds);
+        mOutputSpace = outputState.framebufferSpace;
         mTexture = std::move(texture);
         mOutputSpace.orientation = outputState.framebufferSpace.orientation;
         mOutputDataspace = outputDataspace;
diff --git a/services/surfaceflinger/CompositionEngine/tests/planner/CachedSetTest.cpp b/services/surfaceflinger/CompositionEngine/tests/planner/CachedSetTest.cpp
index 2f2c670..8884711 100644
--- a/services/surfaceflinger/CompositionEngine/tests/planner/CachedSetTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/planner/CachedSetTest.cpp
@@ -325,10 +325,55 @@
     cachedSet.render(mRenderEngine, mOutputState);
     expectReadyBuffer(cachedSet);
 
-    EXPECT_EQ(Rect(1, 1, 3, 3), cachedSet.getOutputSpace().content);
-    EXPECT_EQ(Rect(mOutputState.framebufferSpace.bounds.getWidth(),
-                   mOutputState.framebufferSpace.bounds.getHeight()),
-              cachedSet.getOutputSpace().bounds);
+    EXPECT_EQ(mOutputState.framebufferSpace, cachedSet.getOutputSpace());
+
+    // Now check that appending a new cached set properly cleans up RenderEngine resources.
+    CachedSet::Layer& layer3 = *mTestLayers[2]->cachedSetLayer.get();
+    cachedSet.append(CachedSet(layer3));
+}
+
+TEST_F(CachedSetTest, rendersWithOffsetFramebufferContent) {
+    // Skip the 0th layer to ensure that the bounding box of the layers is offset from (0, 0)
+    CachedSet::Layer& layer1 = *mTestLayers[1]->cachedSetLayer.get();
+    sp<mock::LayerFE> layerFE1 = mTestLayers[1]->layerFE;
+    CachedSet::Layer& layer2 = *mTestLayers[2]->cachedSetLayer.get();
+    sp<mock::LayerFE> layerFE2 = mTestLayers[2]->layerFE;
+
+    CachedSet cachedSet(layer1);
+    cachedSet.append(CachedSet(layer2));
+
+    std::vector<compositionengine::LayerFE::LayerSettings> clientCompList1;
+    clientCompList1.push_back({});
+    clientCompList1[0].alpha = 0.5f;
+
+    std::vector<compositionengine::LayerFE::LayerSettings> clientCompList2;
+    clientCompList2.push_back({});
+    clientCompList2[0].alpha = 0.75f;
+
+    mOutputState.framebufferSpace = ProjectionSpace(ui::Size(10, 20), Rect(2, 3, 10, 5));
+
+    const auto drawLayers = [&](const renderengine::DisplaySettings& displaySettings,
+                                const std::vector<const renderengine::LayerSettings*>& layers,
+                                const std::shared_ptr<renderengine::ExternalTexture>&, const bool,
+                                base::unique_fd&&, base::unique_fd*) -> size_t {
+        EXPECT_EQ(Rect(1, 2, 9, 4), displaySettings.physicalDisplay);
+        EXPECT_EQ(mOutputState.layerStackSpace.content, displaySettings.clip);
+        EXPECT_EQ(ui::Transform::toRotationFlags(mOutputState.framebufferSpace.orientation),
+                  displaySettings.orientation);
+        EXPECT_EQ(0.5f, layers[0]->alpha);
+        EXPECT_EQ(0.75f, layers[1]->alpha);
+        EXPECT_EQ(ui::Dataspace::SRGB, displaySettings.outputDataspace);
+
+        return NO_ERROR;
+    };
+
+    EXPECT_CALL(*layerFE1, prepareClientCompositionList(_)).WillOnce(Return(clientCompList1));
+    EXPECT_CALL(*layerFE2, prepareClientCompositionList(_)).WillOnce(Return(clientCompList2));
+    EXPECT_CALL(mRenderEngine, drawLayers(_, _, _, _, _, _)).WillOnce(Invoke(drawLayers));
+    cachedSet.render(mRenderEngine, mOutputState);
+    expectReadyBuffer(cachedSet);
+
+    EXPECT_EQ(mOutputState.framebufferSpace, cachedSet.getOutputSpace());
 
     // Now check that appending a new cached set properly cleans up RenderEngine resources.
     CachedSet::Layer& layer3 = *mTestLayers[2]->cachedSetLayer.get();
diff --git a/services/surfaceflinger/CompositionEngine/tests/planner/FlattenerTest.cpp b/services/surfaceflinger/CompositionEngine/tests/planner/FlattenerTest.cpp
index c528087..373b895 100644
--- a/services/surfaceflinger/CompositionEngine/tests/planner/FlattenerTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/planner/FlattenerTest.cpp
@@ -275,11 +275,7 @@
     mTime += 200ms;
     expectAllLayersFlattened(layers);
 
-    EXPECT_EQ(overrideDisplaySpace.bounds,
-              Rect(mOutputState.framebufferSpace.bounds.getWidth(),
-                   mOutputState.framebufferSpace.bounds.getHeight()));
-    EXPECT_EQ(overrideDisplaySpace.content, Rect(0, 0, 2, 2));
-    EXPECT_EQ(overrideDisplaySpace.orientation, mOutputState.framebufferSpace.orientation);
+    EXPECT_EQ(overrideDisplaySpace, mOutputState.framebufferSpace);
 }
 
 TEST_F(FlattenerTest, flattenLayers_FlattenedLayersSetsDamageRegions) {