Move touch CTM from X into Chrome

chromeos/display/touchscreen_delegate_x11.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chromeos/display/touchscreen_delegate_x11.h"
 
 #include <X11/extensions/XInput.h>
 #include <X11/extensions/XInput2.h>
 
 #include <cmath>
@@ skipping 113 matching lines @@
         VLOG(2) << "Arbitrarily matching touchscreen "
                 << (*outputs)[i].touch_device_id << " to output #" << i;
         break;
       }
     }
   }
 
   XIFreeDeviceInfo(info);
 }
 
-void TouchscreenDelegateX11::ConfigureCTM(
-    int touch_device_id,
-    const OutputConfigurator::CoordinateTransformation& ctm) {
-  VLOG(1) << "ConfigureCTM: id=" << touch_device_id
-          << " scale=" << ctm.x_scale << "x" << ctm.y_scale
-          << " offset=(" << ctm.x_offset << ", " << ctm.y_offset << ")";
-  int ndevices = 0;
-  XIDeviceInfo* info = XIQueryDevice(display_, touch_device_id, &ndevices);
-  Atom prop = XInternAtom(display_, "Coordinate Transformation Matrix", False);
-  Atom float_atom = XInternAtom(display_, "FLOAT", False);
-  if (ndevices == 1 && prop != None && float_atom != None) {
-    Atom type;
-    int format;
-    unsigned long num_items;
-    unsigned long bytes_after;
-    unsigned char* data = NULL;
-    // Verify that the property exists with correct format, type, etc.
-    int status = XIGetProperty(display_, info->deviceid, prop, 0, 0, False,
-        AnyPropertyType, &type, &format, &num_items, &bytes_after, &data);
-    if (data)
-      XFree(data);
-    if (status == Success && type == float_atom && format == 32) {
-      float value[3][3] = {
-          { ctm.x_scale,         0.0, ctm.x_offset },
-          {         0.0, ctm.y_scale, ctm.y_offset },
-          {         0.0,         0.0,          1.0 }
-      };
-      XIChangeProperty(display_,
-                       info->deviceid,
-                       prop,
-                       type,
-                       format,
-                       PropModeReplace,
-                       reinterpret_cast<unsigned char*>(value),
-                       9);
-    }
-  }
-  XIFreeDeviceInfo(info);
-}
-
 }  // namespace chromeos