Improve input device calibration format.

Added support for calibrating touch size for devices that report
size as an area measurement rather than as a width.
Fixed some bugs.

Bug: 3096045
Change-Id: I30a12e73752883516ed054f8af407204bca45814

1 files changed, 31 insertions, 24 deletions

diff --git a/include/ui/InputReader.h b/include/ui/InputReader.h
index c15e382..923cdbf 100644
--- a/include/ui/InputReader.h
+++ b/include/ui/InputReader.h
@@ -571,31 +571,36 @@ protected:
 
     // Immutable calibration parameters in parsed form.
     struct Calibration {
-        // Touch Area
-        enum TouchAreaCalibration {
-            TOUCH_AREA_CALIBRATION_DEFAULT,
-            TOUCH_AREA_CALIBRATION_NONE,
-            TOUCH_AREA_CALIBRATION_GEOMETRIC,
-            TOUCH_AREA_CALIBRATION_PRESSURE,
+        // Touch Size
+        enum TouchSizeCalibration {
+            TOUCH_SIZE_CALIBRATION_DEFAULT,
+            TOUCH_SIZE_CALIBRATION_NONE,
+            TOUCH_SIZE_CALIBRATION_GEOMETRIC,
+            TOUCH_SIZE_CALIBRATION_PRESSURE,
         };
 
-        TouchAreaCalibration touchAreaCalibration;
+        TouchSizeCalibration touchSizeCalibration;
 
-        // Tool Area
-        enum ToolAreaCalibration {
-            TOOL_AREA_CALIBRATION_DEFAULT,
-            TOOL_AREA_CALIBRATION_NONE,
-            TOOL_AREA_CALIBRATION_GEOMETRIC,
-            TOOL_AREA_CALIBRATION_LINEAR,
+        // Tool Size
+        enum ToolSizeCalibration {
+            TOOL_SIZE_CALIBRATION_DEFAULT,
+            TOOL_SIZE_CALIBRATION_NONE,
+            TOOL_SIZE_CALIBRATION_GEOMETRIC,
+            TOOL_SIZE_CALIBRATION_LINEAR,
+            TOOL_SIZE_CALIBRATION_AREA,
         };
 
-        ToolAreaCalibration toolAreaCalibration;
-        bool haveToolAreaLinearScale;
-        float toolAreaLinearScale;
-        bool haveToolAreaLinearBias;
-        float toolAreaLinearBias;
-        bool haveToolAreaIsSummed;
-        int32_t toolAreaIsSummed;
+        ToolSizeCalibration toolSizeCalibration;
+        bool haveToolSizeLinearScale;
+        float toolSizeLinearScale;
+        bool haveToolSizeLinearBias;
+        float toolSizeLinearBias;
+        bool haveToolSizeAreaScale;
+        float toolSizeAreaScale;
+        bool haveToolSizeAreaBias;
+        float toolSizeAreaBias;
+        bool haveToolSizeIsSummed;
+        int32_t toolSizeIsSummed;
 
         // Pressure
         enum PressureCalibration {
@@ -671,8 +676,10 @@ protected:
 
         float geometricScale;
 
-        float toolAreaLinearScale;
-        float toolAreaLinearBias;
+        float toolSizeLinearScale;
+        float toolSizeLinearBias;
+        float toolSizeAreaScale;
+        float toolSizeAreaBias;
 
         float pressureScale;
 
@@ -691,11 +698,11 @@ protected:
             bool haveSize;
             InputDeviceInfo::MotionRange size;
 
-            bool haveTouchArea;
+            bool haveTouchSize;
             InputDeviceInfo::MotionRange touchMajor;
             InputDeviceInfo::MotionRange touchMinor;
 
-            bool haveToolArea;
+            bool haveToolSize;
             InputDeviceInfo::MotionRange toolMajor;
             InputDeviceInfo::MotionRange toolMinor;