1 files changed, 86 insertions, 0 deletions
diff --git a/libs/hwui/LightingInfo.h b/libs/hwui/LightingInfo.h
new file mode 100644
index 000000000000..3112eb3e0d73
--- /dev/null
+++ b/libs/hwui/LightingInfo.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "Lighting.h"
+#include "Properties.h"
+
+namespace android {
+namespace uirenderer {
+
+class LightingInfo {
+public:
+
+    static float getLightRadius() {
+        if (CC_UNLIKELY(Properties::overrideLightRadius > 0)) {
+            return Properties::overrideLightRadius;
+        }
+        return mLightRadius;
+    }
+
+    static uint8_t getAmbientShadowAlpha() {
+        if (CC_UNLIKELY(Properties::overrideAmbientShadowStrength >= 0)) {
+            return Properties::overrideAmbientShadowStrength;
+        }
+        return mAmbientShadowAlpha;
+    }
+
+    static uint8_t getSpotShadowAlpha() {
+        if (CC_UNLIKELY(Properties::overrideSpotShadowStrength >= 0)) {
+            return Properties::overrideSpotShadowStrength;
+        }
+        return mSpotShadowAlpha;
+    }
+
+    static Vector3 getLightCenter() {
+        if (CC_UNLIKELY(Properties::overrideLightPosY > 0 || Properties::overrideLightPosZ > 0)) {
+            Vector3 adjustedLightCenter = mLightCenter;
+            if (CC_UNLIKELY(Properties::overrideLightPosY > 0)) {
+                // negated since this shifts up
+                adjustedLightCenter.y = -Properties::overrideLightPosY;
+            }
+            if (CC_UNLIKELY(Properties::overrideLightPosZ > 0)) {
+                adjustedLightCenter.z = Properties::overrideLightPosZ;
+            }
+            return adjustedLightCenter;
+        }
+        return mLightCenter;
+    }
+
+    static Vector3 getLightCenterRaw() {
+        return mLightCenter;
+    }
+
+    static void setLightCenterRaw(const Vector3& lightCenter) {
+        mLightCenter = lightCenter;
+    }
+
+    static void updateLighting(const LightGeometry& lightGeometry, const LightInfo& lightInfo) {
+        mLightRadius = lightGeometry.radius;
+        mAmbientShadowAlpha = lightInfo.ambientShadowAlpha;
+        mSpotShadowAlpha = lightInfo.spotShadowAlpha;
+        mLightCenter = lightGeometry.center;
+    }
+private:
+    static float mLightRadius;
+    static uint8_t mAmbientShadowAlpha;
+    static uint8_t mSpotShadowAlpha;
+    static Vector3 mLightCenter;
+};
+
+} /* namespace uirenderer */
+} /* namespace android */