summaryrefslogtreecommitdiffstats
path: root/gfx/vr/service/VRSession.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--gfx/vr/service/VRSession.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/gfx/vr/service/VRSession.h b/gfx/vr/service/VRSession.h
new file mode 100644
index 0000000000..ab446a26d7
--- /dev/null
+++ b/gfx/vr/service/VRSession.h
@@ -0,0 +1,94 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GFX_VR_SERVICE_VRSESSION_H
+#define GFX_VR_SERVICE_VRSESSION_H
+
+#include "moz_external_vr.h"
+
+#if defined(XP_WIN)
+# include <d3d11_1.h>
+#elif defined(XP_MACOSX)
+class MacIOSurface;
+#endif
+
+namespace mozilla {
+namespace gfx {
+
+class VRSession {
+ public:
+ VRSession();
+
+ // Since this class doesn't use smartpointers for its refcounted
+ // members (so that it can compile outside of mozilla-central),
+ // prevent copying the addresses without increasing the refcount.
+ VRSession(const VRSession&) = delete;
+ VRSession& operator=(const VRSession&) = delete;
+
+#ifdef XP_WIN
+ virtual ~VRSession();
+#else
+ virtual ~VRSession() = default;
+#endif
+
+ static void UpdateTrigger(VRControllerState& aState, uint32_t aButtonIndex,
+ float aValue, float aThreshold);
+ /**
+ * In order to support WebXR's navigator.xr.IsSessionSupported call without
+ * displaying any permission dialogue, it is necessary to have a safe way to
+ * detect the capability of running a VR or AR session without activating XR
+ * runtimes or powering on hardware.
+ *
+ * API's such as OpenVR make no guarantee that hardware and software won't be
+ * left activated after enumerating devices, so each backend in gfx/vr/service
+ * must allow for more granular detection of capabilities.
+ *
+ * By passing true to bDetectRuntimesOnly, the initialization exits early
+ * after reporting the presence of XR runtime software. The Initialize method
+ * will only enumerate hardware and possibly return true when
+ * aDetectRuntimesOnly is false.
+ */
+ virtual bool Initialize(mozilla::gfx::VRSystemState& aSystemState,
+ bool aDetectRuntimesOnly) = 0;
+ virtual void Shutdown() = 0;
+ virtual void ProcessEvents(mozilla::gfx::VRSystemState& aSystemState) = 0;
+ virtual void StartFrame(mozilla::gfx::VRSystemState& aSystemState) = 0;
+ virtual bool StartPresentation() = 0;
+ virtual void StopPresentation() = 0;
+ virtual void VibrateHaptic(uint32_t aControllerIdx, uint32_t aHapticIndex,
+ float aIntensity, float aDuration) = 0;
+ virtual void StopVibrateHaptic(uint32_t aControllerIdx) = 0;
+ virtual void StopAllHaptics() = 0;
+ bool SubmitFrame(const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer);
+ bool ShouldQuit() const;
+
+ protected:
+ bool mShouldQuit;
+#if defined(XP_WIN)
+ virtual bool SubmitFrame(const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer,
+ ID3D11Texture2D* aTexture) = 0;
+ bool CreateD3DContext(ID3D11Device* aDevice);
+
+ ID3D11Device1* GetD3DDevice();
+ ID3D11DeviceContext1* GetD3DDeviceContext();
+ ID3DDeviceContextState* GetD3DDeviceContextState();
+
+ ID3D11Device1* mDevice;
+ ID3D11DeviceContext1* mContext;
+ ID3DDeviceContextState* mDeviceContextState;
+
+#elif defined(XP_MACOSX)
+ virtual bool SubmitFrame(const mozilla::gfx::VRLayer_Stereo_Immersive& aLayer,
+ const VRLayerTextureHandle& aTexture) = 0;
+#endif
+ void SetControllerSelectionAndSqueezeFrameId(
+ VRControllerState& controllerState, uint64_t aFrameId);
+};
+
+} // namespace gfx
+} // namespace mozilla
+
+#endif // GFX_VR_SERVICE_VRSESSION_H