Index: device/vr/android/cardboard/cardboard_vr_device.cc |
diff --git a/device/vr/android/cardboard/cardboard_vr_device.cc b/device/vr/android/cardboard/cardboard_vr_device.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..c2a0a50af7efbce3da8b5637593598f80fb11e2c |
--- /dev/null |
+++ b/device/vr/android/cardboard/cardboard_vr_device.cc |
@@ -0,0 +1,154 @@ |
+// Copyright 2015 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 "device/vr/android/cardboard/cardboard_vr_device.h" |
+ |
+#include <math.h> |
+#include <algorithm> |
+ |
+#include "base/android/context_utils.h" |
+#include "base/android/jni_android.h" |
+#include "base/android/jni_array.h" |
+#include "base/android/jni_string.h" |
+#include "base/strings/string_util.h" |
+#include "base/strings/utf_string_conversions.h" |
+#include "base/time/time.h" |
+#include "base/trace_event/trace_event.h" |
+#include "jni/CardboardVRDevice_jni.h" |
+#include "ui/gfx/transform.h" |
+#include "ui/gfx/transform_util.h" |
+ |
+using base::android::AttachCurrentThread; |
+using base::android::ScopedJavaLocalRef; |
+ |
+namespace device { |
+ |
+CardboardVRDevice::CardboardVRDevice(VRDeviceProvider* provider) |
+ : VRDevice(provider) { |
+ JNIEnv* env = AttachCurrentThread(); |
+ j_cardboard_device_.Reset(Java_CardboardVRDevice_create( |
+ env, base::android::GetApplicationContext())); |
+ j_head_matrix_.Reset(env, env->NewFloatArray(16)); |
+} |
+ |
+CardboardVRDevice::~CardboardVRDevice() { |
+ Java_CardboardVRDevice_stopTracking(AttachCurrentThread(), |
+ j_cardboard_device_.obj()); |
+} |
+ |
+VRDisplayPtr CardboardVRDevice::GetVRDevice() { |
+ TRACE_EVENT0("input", "CardboardVRDevice::GetVRDevice"); |
+ VRDisplayPtr device = VRDisplay::New(); |
+ |
+ JNIEnv* env = AttachCurrentThread(); |
+ |
+ ScopedJavaLocalRef<jstring> j_device_name = |
+ Java_CardboardVRDevice_getDeviceName(env, j_cardboard_device_.obj()); |
+ device->displayName = |
+ base::android::ConvertJavaStringToUTF8(env, j_device_name.obj()); |
+ |
+ ScopedJavaLocalRef<jfloatArray> j_fov(env, env->NewFloatArray(4)); |
+ Java_CardboardVRDevice_getFieldOfView(env, j_cardboard_device_.obj(), |
+ j_fov.obj()); |
+ |
+ std::vector<float> fov; |
+ base::android::JavaFloatArrayToFloatVector(env, j_fov.obj(), &fov); |
+ |
+ device->capabilities = VRDisplayCapabilities::New(); |
+ device->capabilities->hasOrientation = true; |
+ device->capabilities->hasPosition = false; |
+ device->capabilities->hasExternalDisplay = false; |
+ device->capabilities->canPresent = false; |
+ |
+ device->leftEye = VREyeParameters::New(); |
+ device->rightEye = VREyeParameters::New(); |
+ VREyeParametersPtr& left_eye = device->leftEye; |
+ VREyeParametersPtr& right_eye = device->rightEye; |
+ |
+ left_eye->fieldOfView = VRFieldOfView::New(); |
+ left_eye->fieldOfView->upDegrees = fov[0]; |
+ left_eye->fieldOfView->downDegrees = fov[1]; |
+ left_eye->fieldOfView->leftDegrees = fov[2]; |
+ left_eye->fieldOfView->rightDegrees = fov[3]; |
+ |
+ // Cardboard devices always assume a mirrored FOV, so this is just the left |
+ // eye FOV with the left and right degrees swapped. |
+ right_eye->fieldOfView = VRFieldOfView::New(); |
+ right_eye->fieldOfView->upDegrees = fov[0]; |
+ right_eye->fieldOfView->downDegrees = fov[1]; |
+ right_eye->fieldOfView->leftDegrees = fov[3]; |
+ right_eye->fieldOfView->rightDegrees = fov[2]; |
+ |
+ float ipd = Java_CardboardVRDevice_getIpd(env, j_cardboard_device_.obj()); |
+ |
+ left_eye->offset = mojo::Array<float>::New(3); |
+ left_eye->offset[0] = ipd * -0.5f; |
+ left_eye->offset[1] = 0.0f; |
+ left_eye->offset[2] = 0.0f; |
+ |
+ right_eye->offset = mojo::Array<float>::New(3); |
+ right_eye->offset[0] = ipd * 0.5f; |
+ right_eye->offset[1] = 0.0f; |
+ right_eye->offset[2] = 0.0f; |
+ |
+ ScopedJavaLocalRef<jintArray> j_screen_size(env, env->NewIntArray(2)); |
+ Java_CardboardVRDevice_getScreenSize(env, j_cardboard_device_.obj(), |
+ j_screen_size.obj()); |
+ |
+ std::vector<int> screen_size; |
+ base::android::JavaIntArrayToIntVector(env, j_screen_size.obj(), |
+ &screen_size); |
+ |
+ left_eye->renderWidth = screen_size[0] / 2.0; |
+ left_eye->renderHeight = screen_size[1]; |
+ |
+ right_eye->renderWidth = screen_size[0] / 2.0; |
+ right_eye->renderHeight = screen_size[1]; |
+ |
+ return device; |
+} |
+ |
+VRPosePtr CardboardVRDevice::GetPose() { |
+ TRACE_EVENT0("input", "CardboardVRDevice::GetSensorState"); |
+ VRPosePtr pose = VRPose::New(); |
+ |
+ pose->timestamp = base::Time::Now().ToJsTime(); |
+ |
+ JNIEnv* env = AttachCurrentThread(); |
+ Java_CardboardVRDevice_getSensorState(env, j_cardboard_device_.obj(), |
+ j_head_matrix_.obj()); |
+ |
+ std::vector<float> head_matrix; |
+ base::android::JavaFloatArrayToFloatVector(env, j_head_matrix_.obj(), |
+ &head_matrix); |
+ |
+ gfx::Transform transform( |
+ head_matrix[0], head_matrix[1], head_matrix[2], head_matrix[3], |
+ head_matrix[4], head_matrix[5], head_matrix[6], head_matrix[7], |
+ head_matrix[8], head_matrix[9], head_matrix[10], head_matrix[11], |
+ head_matrix[12], head_matrix[13], head_matrix[14], head_matrix[15]); |
+ |
+ gfx::DecomposedTransform decomposed_transform; |
+ gfx::DecomposeTransform(&decomposed_transform, transform); |
+ |
+ pose->orientation = mojo::Array<float>::New(4); |
+ pose->orientation[0] = decomposed_transform.quaternion[0]; |
+ pose->orientation[1] = decomposed_transform.quaternion[1]; |
+ pose->orientation[2] = decomposed_transform.quaternion[2]; |
+ pose->orientation[3] = decomposed_transform.quaternion[3]; |
+ |
+ pose->position = mojo::Array<float>::New(3); |
+ pose->position[0] = decomposed_transform.translate[0]; |
+ pose->position[1] = decomposed_transform.translate[1]; |
+ pose->position[2] = decomposed_transform.translate[2]; |
+ |
+ return pose; |
+} |
+ |
+void CardboardVRDevice::ResetPose() { |
+ Java_CardboardVRDevice_resetSensor(AttachCurrentThread(), |
+ j_cardboard_device_.obj()); |
+} |
+ |
+} // namespace device |