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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> |
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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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