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OpenVRControllerMapper.cpp (3146B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "OpenVRControllerMapper.h"
      8 #include "mozilla/StaticPrefs_dom.h"
      9 
     10 #include "VRSession.h"
     11 
     12 namespace mozilla::gfx {
     13 
     14 OpenVRControllerMapper::OpenVRControllerMapper()
     15    : mNumButtons(0), mNumAxes(0) {}
     16 
     17 void OpenVRControllerMapper::GetButtonValueFromAction(
     18    VRControllerState& aControllerState, const ControllerAction& aPressAction,
     19    const ControllerAction& aTouchAction) {
     20  vr::InputDigitalActionData_t actionData = {};
     21  bool bPressed = false;
     22  bool bTouched = false;
     23  uint64_t mask = 0;
     24 
     25  if (aPressAction.handle &&
     26      vr::VRInput()->GetDigitalActionData(
     27          aPressAction.handle, &actionData, sizeof(actionData),
     28          vr::k_ulInvalidInputValueHandle) == vr::VRInputError_None &&
     29      actionData.bActive) {
     30    bPressed = actionData.bState;
     31    mask = (1ULL << mNumButtons);
     32    aControllerState.triggerValue[mNumButtons] = bPressed ? 1.0 : 0.0f;
     33    if (bPressed) {
     34      aControllerState.buttonPressed |= mask;
     35    } else {
     36      aControllerState.buttonPressed &= ~mask;
     37    }
     38    if (aTouchAction.handle &&
     39        vr::VRInput()->GetDigitalActionData(
     40            aTouchAction.handle, &actionData, sizeof(actionData),
     41            vr::k_ulInvalidInputValueHandle) == vr::VRInputError_None) {
     42      bTouched = actionData.bActive && actionData.bState;
     43      mask = (1ULL << mNumButtons);
     44      if (bTouched) {
     45        aControllerState.buttonTouched |= mask;
     46      } else {
     47        aControllerState.buttonTouched &= ~mask;
     48      }
     49    }
     50    ++mNumButtons;
     51  }
     52 }
     53 
     54 void OpenVRControllerMapper::GetTriggerValueFromAction(
     55    VRControllerState& aControllerState, const ControllerAction& aAction) {
     56  vr::InputAnalogActionData_t analogData = {};
     57  const float triggerThreshold =
     58      StaticPrefs::dom_vr_controller_trigger_threshold();
     59 
     60  if (aAction.handle &&
     61      vr::VRInput()->GetAnalogActionData(
     62          aAction.handle, &analogData, sizeof(analogData),
     63          vr::k_ulInvalidInputValueHandle) == vr::VRInputError_None &&
     64      analogData.bActive) {
     65    VRSession::UpdateTrigger(aControllerState, mNumButtons, analogData.x,
     66                             triggerThreshold);
     67    ++mNumButtons;
     68  }
     69 }
     70 
     71 void OpenVRControllerMapper::GetAxisValueFromAction(
     72    VRControllerState& aControllerState, const ControllerAction& aAction,
     73    bool aInvertAxis) {
     74  vr::InputAnalogActionData_t analogData = {};
     75  const float yAxisInvert = (aInvertAxis) ? -1.0f : 1.0f;
     76 
     77  if (aAction.handle &&
     78      vr::VRInput()->GetAnalogActionData(
     79          aAction.handle, &analogData, sizeof(analogData),
     80          vr::k_ulInvalidInputValueHandle) == vr::VRInputError_None &&
     81      analogData.bActive) {
     82    aControllerState.axisValue[mNumAxes] = analogData.x;
     83    ++mNumAxes;
     84    aControllerState.axisValue[mNumAxes] = analogData.y * yAxisInvert;
     85    ++mNumAxes;
     86  }
     87 }
     88 
     89 }  // namespace mozilla::gfx