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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "ui/display/chromeos/x11/touchscreen_delegate_x11.h" | 5 #include "ui/display/chromeos/x11/touchscreen_delegate_x11.h" |
| 6 | 6 |
| 7 #include <X11/extensions/XInput.h> | 7 #include <X11/extensions/XInput.h> |
| 8 #include <X11/extensions/XInput2.h> | 8 #include <X11/extensions/XInput2.h> |
| 9 | 9 |
| 10 #include <cmath> | 10 #include <cmath> |
| (...skipping 111 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 122 VLOG(2) << "Arbitrarily matching touchscreen " | 122 VLOG(2) << "Arbitrarily matching touchscreen " |
| 123 << (*outputs)[i].touch_device_id << " to output #" << i; | 123 << (*outputs)[i].touch_device_id << " to output #" << i; |
| 124 break; | 124 break; |
| 125 } | 125 } |
| 126 } | 126 } |
| 127 } | 127 } |
| 128 | 128 |
| 129 XIFreeDeviceInfo(info); | 129 XIFreeDeviceInfo(info); |
| 130 } | 130 } |
| 131 | 131 |
| 132 void TouchscreenDelegateX11::ConfigureCTM( | |
| 133 int touch_device_id, | |
| 134 const DisplayConfigurator::CoordinateTransformation& ctm) { | |
| 135 VLOG(1) << "ConfigureCTM: id=" << touch_device_id << " scale=" << ctm.x_scale | |
| 136 << "x" << ctm.y_scale << " offset=(" << ctm.x_offset << ", " | |
| 137 << ctm.y_offset << ")"; | |
| 138 int ndevices = 0; | |
| 139 XIDeviceInfo* info = XIQueryDevice(display_, touch_device_id, &ndevices); | |
| 140 Atom prop = XInternAtom(display_, "Coordinate Transformation Matrix", False); | |
| 141 Atom float_atom = XInternAtom(display_, "FLOAT", False); | |
| 142 if (ndevices == 1 && prop != None && float_atom != None) { | |
| 143 Atom type; | |
| 144 int format; | |
| 145 unsigned long num_items; | |
| 146 unsigned long bytes_after; | |
| 147 unsigned char* data = NULL; | |
| 148 // Verify that the property exists with correct format, type, etc. | |
| 149 int status = XIGetProperty(display_, | |
| 150 info->deviceid, | |
| 151 prop, | |
| 152 0, | |
| 153 0, | |
| 154 False, | |
| 155 AnyPropertyType, | |
| 156 &type, | |
| 157 &format, | |
| 158 &num_items, | |
| 159 &bytes_after, | |
| 160 &data); | |
| 161 if (data) | |
| 162 XFree(data); | |
| 163 if (status == Success && type == float_atom && format == 32) { | |
| 164 float value[3][3] = { | |
| 165 { ctm.x_scale, 0.0, ctm.x_offset }, | |
| 166 { 0.0, ctm.y_scale, ctm.y_offset }, | |
| 167 { 0.0, 0.0, 1.0 } | |
| 168 }; | |
| 169 XIChangeProperty(display_, | |
| 170 info->deviceid, | |
| 171 prop, | |
| 172 type, | |
| 173 format, | |
| 174 PropModeReplace, | |
| 175 reinterpret_cast<unsigned char*>(value), | |
| 176 9); | |
| 177 } | |
| 178 } | |
| 179 XIFreeDeviceInfo(info); | |
| 180 } | |
| 181 | |
| 182 } // namespace ui | 132 } // namespace ui |
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