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OpenXR: Add support for retrieving play area

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This commit is contained in:
Bastiaan Olij 2023-11-21 16:34:29 +11:00
parent d76c1d0e51
commit 69a41b3d39
4 changed files with 63 additions and 2 deletions
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22
modules/openxr/openxr_api.cpp
View file

@ -87,7 +87,7 @@ String OpenXRAPI::get_default_action_map_resource_name() {
return name;
}
String OpenXRAPI::get_error_string(XrResult result) {
String OpenXRAPI::get_error_string(XrResult result) const {
if (XR_SUCCEEDED(result)) {
return String("Succeeded");
}
@ -1261,6 +1261,7 @@ bool OpenXRAPI::resolve_instance_openxr_symbols() {
OPENXR_API_INIT_XR_FUNC_V(xrGetActionStateFloat);
OPENXR_API_INIT_XR_FUNC_V(xrGetActionStateVector2f);
OPENXR_API_INIT_XR_FUNC_V(xrGetCurrentInteractionProfile);
OPENXR_API_INIT_XR_FUNC_V(xrGetReferenceSpaceBoundsRect);
OPENXR_API_INIT_XR_FUNC_V(xrGetSystem);
OPENXR_API_INIT_XR_FUNC_V(xrGetSystemProperties);
OPENXR_API_INIT_XR_FUNC_V(xrLocateViews);
@ -2072,6 +2073,25 @@ void OpenXRAPI::set_foveation_dynamic(bool p_foveation_dynamic) {
}
}
Size2 OpenXRAPI::get_play_space_bounds() const {
Size2 ret;
ERR_FAIL_COND_V(session == XR_NULL_HANDLE, Size2());
XrExtent2Df extents;
XrResult result = xrGetReferenceSpaceBoundsRect(session, reference_space, &extents);
if (XR_FAILED(result)) {
print_line("OpenXR: failed to get play space bounds! [", get_error_string(result), "]");
return ret;
}
ret.width = extents.width;
ret.height = extents.height;
return ret;
}
OpenXRAPI::OpenXRAPI() {
// OpenXRAPI is only constructed if OpenXR is enabled.
singleton = this;

6
modules/openxr/openxr_api.h
View file

@ -199,6 +199,7 @@ private:
EXT_PROTO_XRRESULT_FUNC3(xrGetActionStateVector2f, (XrSession), session, (const XrActionStateGetInfo *), getInfo, (XrActionStateVector2f *), state)
EXT_PROTO_XRRESULT_FUNC3(xrGetCurrentInteractionProfile, (XrSession), session, (XrPath), topLevelUserPath, (XrInteractionProfileState *), interactionProfile)
EXT_PROTO_XRRESULT_FUNC2(xrGetInstanceProperties, (XrInstance), instance, (XrInstanceProperties *), instanceProperties)
EXT_PROTO_XRRESULT_FUNC3(xrGetReferenceSpaceBoundsRect, (XrSession), session, (XrReferenceSpaceType), referenceSpaceType, (XrExtent2Df *), bounds)
EXT_PROTO_XRRESULT_FUNC3(xrGetSystem, (XrInstance), instance, (const XrSystemGetInfo *), getInfo, (XrSystemId *), systemId)
EXT_PROTO_XRRESULT_FUNC3(xrGetSystemProperties, (XrInstance), instance, (XrSystemId), systemId, (XrSystemProperties *), properties)
EXT_PROTO_XRRESULT_FUNC4(xrLocateSpace, (XrSpace), space, (XrSpace), baseSpace, (XrTime), time, (XrSpaceLocation *), location)
@ -317,7 +318,7 @@ public:
XrResult try_get_instance_proc_addr(const char *p_name, PFN_xrVoidFunction *p_addr);
XrResult get_instance_proc_addr(const char *p_name, PFN_xrVoidFunction *p_addr);
String get_error_string(XrResult result);
String get_error_string(XrResult result) const;
String get_swapchain_format_name(int64_t p_swapchain_format) const;
void set_xr_interface(OpenXRInterface *p_xr_interface);
@ -380,6 +381,9 @@ public:
bool get_foveation_dynamic() const;
void set_foveation_dynamic(bool p_foveation_dynamic);
// Play space.
Size2 get_play_space_bounds() const;
// action map
String get_default_action_map_resource_name();

36
modules/openxr/openxr_interface.cpp
View file

@ -690,6 +690,42 @@ bool OpenXRInterface::set_play_area_mode(XRInterface::PlayAreaMode p_mode) {
return false;
}
PackedVector3Array OpenXRInterface::get_play_area() const {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, PackedVector3Array());
PackedVector3Array arr;
Vector3 sides[4] = {
Vector3(-0.5f, 0.0f, -0.5f),
Vector3(0.5f, 0.0f, -0.5f),
Vector3(0.5f, 0.0f, 0.5f),
Vector3(-0.5f, 0.0f, 0.5f),
};
if (openxr_api != nullptr && openxr_api->is_initialized()) {
Size2 extents = openxr_api->get_play_space_bounds();
if (extents.width != 0.0 && extents.height != 0.0) {
Transform3D reference_frame = xr_server->get_reference_frame();
for (int i = 0; i < 4; i++) {
Vector3 coord = sides[i];
// Scale it up.
coord.x *= extents.width;
coord.z *= extents.height;
// Now apply our reference.
Vector3 out = reference_frame.xform(coord);
arr.push_back(out);
}
} else {
WARN_PRINT_ONCE("OpenXR: No extents available.");
}
}
return arr;
}
float OpenXRInterface::get_display_refresh_rate() const {
if (openxr_api == nullptr) {
return 0.0;

1
modules/openxr/openxr_interface.h
View file

@ -125,6 +125,7 @@ public:
virtual bool supports_play_area_mode(XRInterface::PlayAreaMode p_mode) override;
virtual XRInterface::PlayAreaMode get_play_area_mode() const override;
virtual bool set_play_area_mode(XRInterface::PlayAreaMode p_mode) override;
virtual PackedVector3Array get_play_area() const override;
float get_display_refresh_rate() const;
void set_display_refresh_rate(float p_refresh_rate);