virtualx-engine/modules/openxr/extensions/openxr_fb_display_refresh_rate_extension.h

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/**************************************************************************/
/* openxr_fb_display_refresh_rate_extension.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef OPENXR_FB_DISPLAY_REFRESH_RATE_EXTENSION_H
#define OPENXR_FB_DISPLAY_REFRESH_RATE_EXTENSION_H
// This extension gives us access to the possible display refresh rates
// supported by the HMD.
// While this is an FB extension it has been adopted by most runtimes and
// will likely become core in the near future.
#include "../openxr_api.h"
#include "../util.h"
#include "openxr_extension_wrapper.h"
class OpenXRDisplayRefreshRateExtension : public OpenXRExtensionWrapper {
public:
static OpenXRDisplayRefreshRateExtension *get_singleton();
OpenXRDisplayRefreshRateExtension();
virtual ~OpenXRDisplayRefreshRateExtension() override;
virtual HashMap<String, bool *> get_requested_extensions() override;
virtual void on_instance_created(const XrInstance p_instance) override;
virtual void on_instance_destroyed() override;
virtual bool on_event_polled(const XrEventDataBuffer &event) override;
float get_refresh_rate() const;
void set_refresh_rate(float p_refresh_rate);
Array get_available_refresh_rates() const;
private:
static OpenXRDisplayRefreshRateExtension *singleton;
bool display_refresh_rate_ext = false;
// OpenXR API call wrappers
EXT_PROTO_XRRESULT_FUNC4(xrEnumerateDisplayRefreshRatesFB, (XrSession), session, (uint32_t), displayRefreshRateCapacityInput, (uint32_t *), displayRefreshRateCountOutput, (float *), displayRefreshRates);
EXT_PROTO_XRRESULT_FUNC2(xrGetDisplayRefreshRateFB, (XrSession), session, (float *), display_refresh_rate);
EXT_PROTO_XRRESULT_FUNC2(xrRequestDisplayRefreshRateFB, (XrSession), session, (float), display_refresh_rate);
};
#endif // OPENXR_FB_DISPLAY_REFRESH_RATE_EXTENSION_H