Add new SF backdoor option: hdr/sdr ratio overlay

 - follow how RefreshRateOverlay did in general.
 - 1043 as new opcode to enable hdr/sdr ratio overlay.
 - decouple SevenSegmentDrawer and SurfaceControlHandle helper classes
   from RefreshRateOverlay.
 - add corresponding SF backdoor test for validation.
 - for non-HDR-supported device, we don't reject them to use SF backdoor
   but 1.00 will be always shown on the screen if enabling.

Test: adb shell call service call SurfaceFlinger 1043 1; atest
SurfaceFlinger_test
Bug: 277957056

Change-Id: Ifce2d435f127b53ab9d01aba4e24ffd4fdb010a7

1 files changed, 42 insertions, 2 deletions

diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index f6ca9e2856..32bd890aee 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -37,11 +37,11 @@
 #include <configstore/Utils.h>
 #include <log/log.h>
 #include <system/window.h>
-#include <ui/GraphicTypes.h>
 
 #include "Display/DisplaySnapshot.h"
 #include "DisplayDevice.h"
 #include "FrontEnd/DisplayInfo.h"
+#include "HdrSdrRatioOverlay.h"
 #include "Layer.h"
 #include "RefreshRateOverlay.h"
 #include "SurfaceFlinger.h"
@@ -261,6 +261,9 @@ void DisplayDevice::setLayerFilter(ui::LayerFilter filter) {
     if (mRefreshRateOverlay) {
         mRefreshRateOverlay->setLayerStack(filter.layerStack);
     }
+    if (mHdrSdrRatioOverlay) {
+        mHdrSdrRatioOverlay->setLayerStack(filter.layerStack);
+    }
 }
 
 void DisplayDevice::setFlags(uint32_t flags) {
@@ -274,10 +277,14 @@ void DisplayDevice::setDisplaySize(int width, int height) {
     if (mRefreshRateOverlay) {
         mRefreshRateOverlay->setViewport(size);
     }
+    if (mHdrSdrRatioOverlay) {
+        mHdrSdrRatioOverlay->setViewport(size);
+    }
 }
 
 void DisplayDevice::setProjection(ui::Rotation orientation, Rect layerStackSpaceRect,
                                   Rect orientedDisplaySpaceRect) {
+    mIsOrientationChanged = mOrientation != orientation;
     mOrientation = orientation;
 
     // We need to take care of display rotation for globalTransform for case if the panel is not
@@ -411,6 +418,26 @@ HdrCapabilities DisplayDevice::getHdrCapabilities() const {
                            capabilities.getDesiredMinLuminance());
 }
 
+void DisplayDevice::enableHdrSdrRatioOverlay(bool enable) {
+    if (!enable) {
+        mHdrSdrRatioOverlay.reset();
+        return;
+    }
+
+    mHdrSdrRatioOverlay = std::make_unique<HdrSdrRatioOverlay>();
+    mHdrSdrRatioOverlay->setLayerStack(getLayerStack());
+    mHdrSdrRatioOverlay->setViewport(getSize());
+    updateHdrSdrRatioOverlayRatio(mHdrSdrRatio);
+}
+
+void DisplayDevice::updateHdrSdrRatioOverlayRatio(float currentHdrSdrRatio) {
+    ATRACE_CALL();
+    mHdrSdrRatio = currentHdrSdrRatio;
+    if (mHdrSdrRatioOverlay) {
+        mHdrSdrRatioOverlay->changeHdrSdrRatio(currentHdrSdrRatio);
+    }
+}
+
 void DisplayDevice::enableRefreshRateOverlay(bool enable, bool setByHwc, bool showSpinner,
                                              bool showRenderRate, bool showInMiddle) {
     if (!enable) {
@@ -463,10 +490,23 @@ bool DisplayDevice::onKernelTimerChanged(std::optional<DisplayModeId> desiredMod
     return false;
 }
 
-void DisplayDevice::animateRefreshRateOverlay() {
+void DisplayDevice::animateOverlay() {
     if (mRefreshRateOverlay) {
         mRefreshRateOverlay->animate();
     }
+    if (mHdrSdrRatioOverlay) {
+        // hdr sdr ratio is designed to be on the top right of the screen,
+        // therefore, we need to re-calculate the display's width and height
+        if (mIsOrientationChanged) {
+            auto width = getWidth();
+            auto height = getHeight();
+            if (mOrientation == ui::ROTATION_90 || mOrientation == ui::ROTATION_270) {
+                std::swap(width, height);
+            }
+            mHdrSdrRatioOverlay->setViewport({width, height});
+        }
+        mHdrSdrRatioOverlay->animate();
+    }
 }
 
 auto DisplayDevice::setDesiredActiveMode(const ActiveModeInfo& info, bool force)