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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 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 "device/vr/android/gvr/gvr_device.h" | 5 #include "device/vr/android/gvr/gvr_device.h" |
6 | 6 |
7 #include <math.h> | 7 #include <math.h> |
8 #include <algorithm> | 8 #include <algorithm> |
9 | 9 |
10 #include "base/time/time.h" | 10 #include "base/time/time.h" |
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143 right_eye->offset[2] = -right_eye_mat.m[2][3]; | 143 right_eye->offset[2] = -right_eye_mat.m[2][3]; |
144 | 144 |
145 if (delegate_) { | 145 if (delegate_) { |
146 delegate_->SetWebVRRenderSurfaceSize(2 * left_eye->renderWidth, | 146 delegate_->SetWebVRRenderSurfaceSize(2 * left_eye->renderWidth, |
147 left_eye->renderHeight); | 147 left_eye->renderHeight); |
148 } | 148 } |
149 | 149 |
150 return device; | 150 return device; |
151 } | 151 } |
152 | 152 |
153 mojom::VRPosePtr GvrDevice::GetPose() { | |
154 TRACE_EVENT0("input", "GvrDevice::GetSensorState"); | |
155 | |
156 mojom::VRPosePtr pose = mojom::VRPose::New(); | |
157 | |
158 pose->timestamp = base::Time::Now().ToJsTime(); | |
159 | |
160 // Increment pose frame counter always, even if it's a faked pose. | |
161 pose->poseIndex = ++pose_index_; | |
162 | |
163 pose->orientation.emplace(4); | |
164 | |
165 gvr::GvrApi* gvr_api = GetGvrApi(); | |
166 if (!gvr_api) { | |
167 // If we don't have a GvrApi instance return a static forward orientation. | |
168 pose->orientation.value()[0] = 0.0; | |
169 pose->orientation.value()[1] = 0.0; | |
170 pose->orientation.value()[2] = 0.0; | |
171 pose->orientation.value()[3] = 1.0; | |
172 | |
173 return pose; | |
174 } | |
175 | |
176 if (!delegate_) | |
177 return nullptr; | |
178 | |
179 gvr::ClockTimePoint target_time = gvr::GvrApi::GetTimePointNow(); | |
180 target_time.monotonic_system_time_nanos += kPredictionTimeWithoutVsyncNanos; | |
181 | |
182 gvr::Mat4f head_mat = | |
183 gvr_api->GetHeadSpaceFromStartSpaceRotation(target_time); | |
184 head_mat = gvr_api->ApplyNeckModel(head_mat, 1.0f); | |
185 | |
186 gfx::Transform inv_transform( | |
187 head_mat.m[0][0], head_mat.m[0][1], head_mat.m[0][2], head_mat.m[0][3], | |
188 head_mat.m[1][0], head_mat.m[1][1], head_mat.m[1][2], head_mat.m[1][3], | |
189 head_mat.m[2][0], head_mat.m[2][1], head_mat.m[2][2], head_mat.m[2][3], | |
190 head_mat.m[3][0], head_mat.m[3][1], head_mat.m[3][2], head_mat.m[3][3]); | |
191 | |
192 gfx::Transform transform; | |
193 if (inv_transform.GetInverse(&transform)) { | |
194 gfx::DecomposedTransform decomposed_transform; | |
195 gfx::DecomposeTransform(&decomposed_transform, transform); | |
196 | |
197 pose->orientation.value()[0] = decomposed_transform.quaternion[0]; | |
198 pose->orientation.value()[1] = decomposed_transform.quaternion[1]; | |
199 pose->orientation.value()[2] = decomposed_transform.quaternion[2]; | |
200 pose->orientation.value()[3] = decomposed_transform.quaternion[3]; | |
201 | |
202 pose->position.emplace(3); | |
203 pose->position.value()[0] = decomposed_transform.translate[0]; | |
204 pose->position.value()[1] = decomposed_transform.translate[1]; | |
205 pose->position.value()[2] = decomposed_transform.translate[2]; | |
206 } | |
207 | |
208 // Save the underlying GVR pose for use by rendering. It can't use a | |
209 // VRPosePtr since that's a different data type. | |
210 delegate_->SetGvrPoseForWebVr(head_mat, pose_index_); | |
211 | |
212 return pose; | |
213 } | |
214 | |
215 void GvrDevice::ResetPose() { | 153 void GvrDevice::ResetPose() { |
216 gvr::GvrApi* gvr_api = GetGvrApi(); | 154 gvr::GvrApi* gvr_api = GetGvrApi(); |
217 | 155 |
218 // Should never call RecenterTracking when using with Daydream viewers. On | 156 // Should never call RecenterTracking when using with Daydream viewers. On |
219 // those devices recentering should only be done via the controller. | 157 // those devices recentering should only be done via the controller. |
220 if (gvr_api && gvr_api->GetViewerType() == GVR_VIEWER_TYPE_CARDBOARD) | 158 if (gvr_api && gvr_api->GetViewerType() == GVR_VIEWER_TYPE_CARDBOARD) |
221 gvr_api->RecenterTracking(); | 159 gvr_api->RecenterTracking(); |
222 } | 160 } |
223 | 161 |
224 void GvrDevice::RequestPresent(const base::Callback<void(bool)>& callback) { | 162 void GvrDevice::RequestPresent(const base::Callback<void(bool)>& callback) { |
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254 | 192 |
255 gvr::Rectf right_gvr_bounds; | 193 gvr::Rectf right_gvr_bounds; |
256 right_gvr_bounds.left = right_bounds->left; | 194 right_gvr_bounds.left = right_bounds->left; |
257 right_gvr_bounds.top = 1.0f - right_bounds->top; | 195 right_gvr_bounds.top = 1.0f - right_bounds->top; |
258 right_gvr_bounds.right = right_bounds->left + right_bounds->width; | 196 right_gvr_bounds.right = right_bounds->left + right_bounds->width; |
259 right_gvr_bounds.bottom = 1.0f - (right_bounds->top + right_bounds->height); | 197 right_gvr_bounds.bottom = 1.0f - (right_bounds->top + right_bounds->height); |
260 | 198 |
261 delegate_->UpdateWebVRTextureBounds(left_gvr_bounds, right_gvr_bounds); | 199 delegate_->UpdateWebVRTextureBounds(left_gvr_bounds, right_gvr_bounds); |
262 } | 200 } |
263 | 201 |
| 202 void GvrDevice::GetVRVSyncProvider(mojom::VRVSyncProviderRequest request) { |
| 203 if (delegate_) |
| 204 delegate_->OnVRVsyncProviderRequest(std::move(request)); |
| 205 } |
| 206 |
264 void GvrDevice::SetDelegate(GvrDelegate* delegate) { | 207 void GvrDevice::SetDelegate(GvrDelegate* delegate) { |
265 delegate_ = delegate; | 208 delegate_ = delegate; |
266 | 209 |
267 // Notify the clients that this device has changed | 210 // Notify the clients that this device has changed |
268 if (delegate_) { | 211 if (delegate_) { |
269 delegate_->SetWebVRSecureOrigin(secure_origin_); | 212 delegate_->SetWebVRSecureOrigin(secure_origin_); |
270 OnChanged(); | 213 OnChanged(); |
271 } | 214 } |
272 } | 215 } |
273 | 216 |
274 gvr::GvrApi* GvrDevice::GetGvrApi() { | 217 gvr::GvrApi* GvrDevice::GetGvrApi() { |
275 if (!delegate_) | 218 if (!delegate_) |
276 return nullptr; | 219 return nullptr; |
277 | 220 |
278 return delegate_->gvr_api(); | 221 return delegate_->gvr_api(); |
279 } | 222 } |
280 | 223 |
281 } // namespace device | 224 } // namespace device |
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