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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/browser/vr/android/cardboard/cardboard_vr_device.h" | |
| 6 | |
| 7 #include <math.h> | |
| 8 #include <algorithm> | |
| 9 | |
| 10 #include "base/android/jni_android.h" | |
| 11 #include "base/android/jni_array.h" | |
| 12 #include "base/android/jni_string.h" | |
| 13 #include "base/strings/string_util.h" | |
| 14 #include "base/strings/utf_string_conversions.h" | |
| 15 #include "base/time/time.h" | |
| 16 #include "base/trace_event/trace_event.h" | |
| 17 #include "content/browser/vr/vr_transform_util.h" | |
| 18 #include "jni/CardboardVRDevice_jni.h" | |
| 19 | |
| 20 using base::android::AttachCurrentThread; | |
| 21 | |
| 22 namespace content { | |
| 23 | |
| 24 bool CardboardVRDevice::RegisterCardboardVRDevice(JNIEnv* env) { | |
| 25 return RegisterNativesImpl(env); | |
| 26 } | |
| 27 | |
| 28 CardboardVRDevice::CardboardVRDevice(VRDeviceProvider* provider) | |
| 29 : VRDevice(provider), frame_index_(0) { | |
| 30 JNIEnv* env = AttachCurrentThread(); | |
| 31 j_cardboard_device_.Reset(Java_CardboardVRDevice_create( | |
| 32 env, base::android::GetApplicationContext())); | |
| 33 j_head_matrix_.Reset(env, env->NewFloatArray(16)); | |
| 34 } | |
| 35 | |
| 36 CardboardVRDevice::~CardboardVRDevice() { | |
| 37 Java_CardboardVRDevice_stopTracking(AttachCurrentThread(), | |
| 38 j_cardboard_device_.obj()); | |
| 39 } | |
| 40 | |
| 41 VRDeviceInfoPtr CardboardVRDevice::GetVRDevice() { | |
| 42 TRACE_EVENT0("input", "CardboardVRDevice::GetVRDevice"); | |
| 43 VRDeviceInfoPtr device = VRDeviceInfo::New(); | |
| 44 | |
| 45 JNIEnv* env = AttachCurrentThread(); | |
| 46 | |
| 47 ScopedJavaLocalRef<jstring> j_device_name = | |
| 48 Java_CardboardVRDevice_getDeviceName(env, j_cardboard_device_.obj()); | |
| 49 device->deviceName = | |
| 50 base::android::ConvertJavaStringToUTF8(env, j_device_name.obj()); | |
| 51 | |
| 52 ScopedJavaLocalRef<jfloatArray> j_fov(env, env->NewFloatArray(4)); | |
| 53 Java_CardboardVRDevice_getFieldOfView(env, j_cardboard_device_.obj(), | |
| 54 j_fov.obj()); | |
| 55 | |
| 56 std::vector<float> fov; | |
| 57 base::android::JavaFloatArrayToFloatVector(env, j_fov.obj(), &fov); | |
| 58 | |
| 59 device->hmdInfo = VRHMDInfo::New(); | |
| 60 VRHMDInfoPtr& hmdInfo = device->hmdInfo; | |
| 61 | |
| 62 hmdInfo->leftEye = VREyeParameters::New(); | |
| 63 hmdInfo->rightEye = VREyeParameters::New(); | |
| 64 VREyeParametersPtr& left_eye = hmdInfo->leftEye; | |
| 65 VREyeParametersPtr& right_eye = hmdInfo->rightEye; | |
| 66 | |
| 67 left_eye->recommendedFieldOfView = VRFieldOfView::New(); | |
| 68 left_eye->recommendedFieldOfView->upDegrees = fov[0]; | |
| 69 left_eye->recommendedFieldOfView->downDegrees = fov[1]; | |
| 70 left_eye->recommendedFieldOfView->leftDegrees = fov[2]; | |
| 71 left_eye->recommendedFieldOfView->rightDegrees = fov[3]; | |
| 72 | |
| 73 // Cardboard devices always assume a mirrored FOV, so this is just the left | |
| 74 // eye FOV with the left and right degrees swapped. | |
| 75 right_eye->recommendedFieldOfView = VRFieldOfView::New(); | |
| 76 right_eye->recommendedFieldOfView->upDegrees = fov[0]; | |
| 77 right_eye->recommendedFieldOfView->downDegrees = fov[1]; | |
| 78 right_eye->recommendedFieldOfView->leftDegrees = fov[3]; | |
| 79 right_eye->recommendedFieldOfView->rightDegrees = fov[2]; | |
| 80 | |
| 81 // Cardboard does not support configurable FOV. | |
| 82 left_eye->maximumFieldOfView = left_eye->recommendedFieldOfView.Clone(); | |
| 83 right_eye->maximumFieldOfView = right_eye->recommendedFieldOfView.Clone(); | |
| 84 left_eye->minimumFieldOfView = left_eye->recommendedFieldOfView.Clone(); | |
| 85 right_eye->minimumFieldOfView = right_eye->recommendedFieldOfView.Clone(); | |
| 86 | |
| 87 float ipd = Java_CardboardVRDevice_getIpd(env, j_cardboard_device_.obj()); | |
| 88 | |
| 89 left_eye->eyeTranslation = VRVector3::New(); | |
| 90 left_eye->eyeTranslation->x = ipd * -0.5f; | |
| 91 left_eye->eyeTranslation->y = 0.0f; | |
| 92 left_eye->eyeTranslation->z = 0.0f; | |
| 93 | |
| 94 right_eye->eyeTranslation = VRVector3::New(); | |
| 95 right_eye->eyeTranslation->x = ipd * 0.5f; | |
| 96 right_eye->eyeTranslation->y = 0.0f; | |
| 97 right_eye->eyeTranslation->z = 0.0f; | |
| 98 | |
| 99 ScopedJavaLocalRef<jintArray> j_screen_size(env, env->NewIntArray(2)); | |
| 100 Java_CardboardVRDevice_getScreenSize(env, j_cardboard_device_.obj(), | |
| 101 j_screen_size.obj()); | |
| 102 | |
| 103 std::vector<int> screen_size; | |
| 104 base::android::JavaIntArrayToIntVector(env, j_screen_size.obj(), | |
| 105 &screen_size); | |
| 106 | |
| 107 left_eye->renderRect = VRRect::New(); | |
| 108 left_eye->renderRect->x = 0; | |
| 109 left_eye->renderRect->y = 0; | |
| 110 left_eye->renderRect->width = screen_size[0] / 2.0; | |
| 111 left_eye->renderRect->height = screen_size[1]; | |
| 112 | |
| 113 right_eye->renderRect = VRRect::New(); | |
| 114 right_eye->renderRect->x = screen_size[0] / 2.0; | |
| 115 right_eye->renderRect->y = 0; | |
| 116 right_eye->renderRect->width = screen_size[0] / 2.0; | |
| 117 right_eye->renderRect->height = screen_size[1]; | |
| 118 | |
| 119 return device.Pass(); | |
| 120 } | |
| 121 | |
| 122 VRSensorStatePtr CardboardVRDevice::GetSensorState() { | |
| 123 TRACE_EVENT0("input", "CardboardVRDevice::GetSensorState"); | |
| 124 VRSensorStatePtr state = VRSensorState::New(); | |
| 125 | |
| 126 state->timestamp = base::Time::Now().ToJsTime(); | |
| 127 state->frameIndex = frame_index_++; | |
| 128 | |
| 129 JNIEnv* env = AttachCurrentThread(); | |
| 130 Java_CardboardVRDevice_getSensorState(env, j_cardboard_device_.obj(), | |
| 131 j_head_matrix_.obj()); | |
| 132 | |
| 133 std::vector<float> head_matrix; | |
| 134 base::android::JavaFloatArrayToFloatVector(env, j_head_matrix_.obj(), | |
| 135 &head_matrix); | |
| 136 | |
| 137 state->orientation = MatrixToOrientationQuaternion( | |
| 138 &head_matrix[0], &head_matrix[4], &head_matrix[8]); | |
| 139 | |
| 140 state->position = VRVector3::New(); | |
| 141 state->position->x = -head_matrix[12]; | |
| 142 state->position->y = head_matrix[13]; | |
| 143 state->position->z = head_matrix[14]; | |
| 144 | |
| 145 return state.Pass(); | |
| 146 } | |
| 147 | |
| 148 void CardboardVRDevice::ResetSensor() { | |
| 149 Java_CardboardVRDevice_resetSensor(AttachCurrentThread(), | |
| 150 j_cardboard_device_.obj()); | |
| 151 } | |
| 152 | |
| 153 } // namespace content | |
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Chromium Code Reviews
Issue 1274913004:
Revert of Android WebVR implementation, Cardboard 0.5.5 SDK (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master