Support floating point values for layer crop
Flag: EXEMPT bug fix
Fixes: 310950423
Test: presubmit
Change-Id: I05feb4881a95bc8caad90a3d632b3c7881909bf3
diff --git a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
index d1429a2..14a8fd6 100644
--- a/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
+++ b/services/surfaceflinger/CompositionEngine/include/compositionengine/LayerFECompositionState.h
@@ -155,7 +155,7 @@
uint32_t geomBufferTransform{0};
Rect geomBufferSize;
Rect geomContentCrop;
- Rect geomCrop;
+ FloatRect geomCrop;
GenericLayerMetadataMap metadata;
diff --git a/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp b/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
index 091c207..8e5c991 100644
--- a/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
+++ b/services/surfaceflinger/CompositionEngine/src/OutputLayer.cpp
@@ -24,6 +24,7 @@
#include <compositionengine/impl/OutputLayerCompositionState.h>
#include <cstdint>
#include "system/graphics-base-v1.0.h"
+#include "ui/FloatRect.h"
#include <ui/HdrRenderTypeUtils.h>
@@ -185,35 +186,35 @@
const auto& layerState = *getLayerFE().getCompositionState();
const auto& outputState = getOutput().getState();
+ // Convert from layer space to layerStackSpace
// apply the layer's transform, followed by the display's global transform
// here we're guaranteed that the layer's transform preserves rects
- Region activeTransparentRegion = layerState.transparentRegionHint;
const ui::Transform& layerTransform = layerState.geomLayerTransform;
- const ui::Transform& inverseLayerTransform = layerState.geomInverseLayerTransform;
- const Rect& bufferSize = layerState.geomBufferSize;
- Rect activeCrop = layerState.geomCrop;
- if (!activeCrop.isEmpty() && bufferSize.isValid()) {
- activeCrop = layerTransform.transform(activeCrop);
- if (!activeCrop.intersect(outputState.layerStackSpace.getContent(), &activeCrop)) {
- activeCrop.clear();
- }
- activeCrop = inverseLayerTransform.transform(activeCrop, true);
- // This needs to be here as transform.transform(Rect) computes the
- // transformed rect and then takes the bounding box of the result before
- // returning. This means
- // transform.inverse().transform(transform.transform(Rect)) != Rect
- // in which case we need to make sure the final rect is clipped to the
- // display bounds.
- if (!activeCrop.intersect(bufferSize, &activeCrop)) {
- activeCrop.clear();
- }
+ Region activeTransparentRegion = layerTransform.transform(layerState.transparentRegionHint);
+ if (!layerState.geomCrop.isEmpty() && layerState.geomBufferSize.isValid()) {
+ FloatRect activeCrop = layerTransform.transform(layerState.geomCrop);
+ activeCrop = activeCrop.intersect(outputState.layerStackSpace.getContent().toFloatRect());
+ const FloatRect& bufferSize =
+ layerTransform.transform(layerState.geomBufferSize.toFloatRect());
+ activeCrop = activeCrop.intersect(bufferSize);
+
// mark regions outside the crop as transparent
- activeTransparentRegion.orSelf(Rect(0, 0, bufferSize.getWidth(), activeCrop.top));
- activeTransparentRegion.orSelf(
- Rect(0, activeCrop.bottom, bufferSize.getWidth(), bufferSize.getHeight()));
- activeTransparentRegion.orSelf(Rect(0, activeCrop.top, activeCrop.left, activeCrop.bottom));
- activeTransparentRegion.orSelf(
- Rect(activeCrop.right, activeCrop.top, bufferSize.getWidth(), activeCrop.bottom));
+ Rect topRegion = Rect(layerTransform.transform(
+ FloatRect(0, 0, layerState.geomBufferSize.getWidth(), layerState.geomCrop.top)));
+ Rect bottomRegion = Rect(layerTransform.transform(
+ FloatRect(0, layerState.geomCrop.bottom, layerState.geomBufferSize.getWidth(),
+ layerState.geomBufferSize.getHeight())));
+ Rect leftRegion = Rect(layerTransform.transform(FloatRect(0, layerState.geomCrop.top,
+ layerState.geomCrop.left,
+ layerState.geomCrop.bottom)));
+ Rect rightRegion = Rect(layerTransform.transform(
+ FloatRect(layerState.geomCrop.right, layerState.geomCrop.top,
+ layerState.geomBufferSize.getWidth(), layerState.geomCrop.bottom)));
+
+ activeTransparentRegion.orSelf(topRegion);
+ activeTransparentRegion.orSelf(bottomRegion);
+ activeTransparentRegion.orSelf(leftRegion);
+ activeTransparentRegion.orSelf(rightRegion);
}
// reduce uses a FloatRect to provide more accuracy during the
@@ -229,13 +230,14 @@
geomLayerBounds.right += outset;
geomLayerBounds.bottom += outset;
}
- Rect frame{layerTransform.transform(reduce(geomLayerBounds, activeTransparentRegion))};
- if (!frame.intersect(outputState.layerStackSpace.getContent(), &frame)) {
- frame.clear();
- }
- const ui::Transform displayTransform{outputState.transform};
- return displayTransform.transform(frame);
+ geomLayerBounds = layerTransform.transform(geomLayerBounds);
+ FloatRect frame = reduce(geomLayerBounds, activeTransparentRegion);
+ frame = frame.intersect(outputState.layerStackSpace.getContent().toFloatRect());
+
+ // convert from layerStackSpace to displaySpace
+ const ui::Transform displayTransform{outputState.transform};
+ return Rect(displayTransform.transform(frame));
}
uint32_t OutputLayer::calculateOutputRelativeBufferTransform(
diff --git a/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp b/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
index 1c54469..95cdcd5 100644
--- a/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
+++ b/services/surfaceflinger/CompositionEngine/tests/OutputLayerTest.cpp
@@ -30,6 +30,7 @@
#include "MockHWC2.h"
#include "MockHWComposer.h"
#include "RegionMatcher.h"
+#include "ui/FloatRect.h"
#include <aidl/android/hardware/graphics/composer3/Composition.h>
@@ -270,7 +271,7 @@
mLayerFEState.geomLayerTransform = ui::Transform{TR_IDENT};
mLayerFEState.geomBufferSize = Rect{0, 0, 1920, 1080};
mLayerFEState.geomBufferUsesDisplayInverseTransform = false;
- mLayerFEState.geomCrop = Rect{0, 0, 1920, 1080};
+ mLayerFEState.geomCrop = FloatRect{0, 0, 1920, 1080};
mLayerFEState.geomLayerBounds = FloatRect{0.f, 0.f, 1920.f, 1080.f};
mOutputState.layerStackSpace.setContent(Rect{0, 0, 1920, 1080});
@@ -296,20 +297,20 @@
}
TEST_F(OutputLayerDisplayFrameTest, cropAffectsDisplayFrame) {
- mLayerFEState.geomCrop = Rect{100, 200, 300, 500};
+ mLayerFEState.geomCrop = FloatRect{100, 200, 300, 500};
const Rect expected{100, 200, 300, 500};
EXPECT_THAT(calculateOutputDisplayFrame(), expected);
}
TEST_F(OutputLayerDisplayFrameTest, cropAffectsDisplayFrameRotated) {
- mLayerFEState.geomCrop = Rect{100, 200, 300, 500};
+ mLayerFEState.geomCrop = FloatRect{100, 200, 300, 500};
mLayerFEState.geomLayerTransform.set(HAL_TRANSFORM_ROT_90, 1920, 1080);
const Rect expected{1420, 100, 1720, 300};
EXPECT_THAT(calculateOutputDisplayFrame(), expected);
}
TEST_F(OutputLayerDisplayFrameTest, emptyGeomCropIsNotUsedToComputeFrame) {
- mLayerFEState.geomCrop = Rect{};
+ mLayerFEState.geomCrop = FloatRect{};
const Rect expected{0, 0, 1920, 1080};
EXPECT_THAT(calculateOutputDisplayFrame(), expected);
}