[Shadows] Create a new composition layer for shadows [6/n]
When generating the list of composition layers, generate one to render
shadows based on the layer settings.
The function passes in the display view port to calculate shadow
position. When rendering a screenshot, use the layerstack of the
root layer to find the display and its viewport since the shadows
on the screenshot have to match how it was rendered on display.
Pass in display or target output dataspace so shadows do not have to
do any color conversion.
Bug: 136561771
Test: go/wm-smoke
Test: libcompositionengine_test
Change-Id: I89795707f054b6a08dabc278d80ed393a0da0a7e
diff --git a/services/surfaceflinger/RenderArea.h b/services/surfaceflinger/RenderArea.h
index edc6442..532572f 100644
--- a/services/surfaceflinger/RenderArea.h
+++ b/services/surfaceflinger/RenderArea.h
@@ -22,13 +22,14 @@
static float getCaptureFillValue(CaptureFill captureFill);
RenderArea(uint32_t reqWidth, uint32_t reqHeight, CaptureFill captureFill,
- ui::Dataspace reqDataSpace,
+ ui::Dataspace reqDataSpace, const Rect& displayViewport,
ui::Transform::orientation_flags rotation = ui::Transform::ROT_0)
: mReqWidth(reqWidth),
mReqHeight(reqHeight),
mReqDataSpace(reqDataSpace),
mCaptureFill(captureFill),
- mRotationFlags(rotation) {}
+ mRotationFlags(rotation),
+ mDisplayViewport(displayViewport) {}
virtual ~RenderArea() = default;
@@ -80,12 +81,16 @@
virtual const sp<const DisplayDevice> getDisplayDevice() const = 0;
+ // Returns the source display viewport.
+ const Rect& getDisplayViewport() const { return mDisplayViewport; }
+
private:
const uint32_t mReqWidth;
const uint32_t mReqHeight;
const ui::Dataspace mReqDataSpace;
const CaptureFill mCaptureFill;
const ui::Transform::orientation_flags mRotationFlags;
+ const Rect mDisplayViewport;
};
} // namespace android