godot/modules/openxr/extensions/openxr_fb_foveation_extension.h

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

97 lines
4.6 KiB
C++
Raw Normal View History

/**************************************************************************/
/* openxr_fb_foveation_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_FOVEATION_EXTENSION_H
#define OPENXR_FB_FOVEATION_EXTENSION_H
// This extension implements the FB Foveation extension.
// This is an extension Meta added due to VRS being unavailable on Android.
// Other Android based devices are implementing this as well, see:
// https://github.khronos.org/OpenXR-Inventory/extension_support.html#XR_FB_foveation
// Note: Currently we only support this for OpenGL.
// This extension works on enabling foveated rendering on the swapchain.
// Vulkan does not render 3D content directly to the swapchain image
// hence this extension can't be used.
#include "../openxr_api.h"
#include "../util.h"
#include "openxr_extension_wrapper.h"
#include "openxr_fb_update_swapchain_extension.h"
class OpenXRFBFoveationExtension : public OpenXRExtensionWrapper {
public:
static OpenXRFBFoveationExtension *get_singleton();
OpenXRFBFoveationExtension(const String &p_rendering_driver);
virtual ~OpenXRFBFoveationExtension() 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 void *set_swapchain_create_info_and_get_next_pointer(void *p_next_pointer) override;
virtual void on_state_ready() override;
bool is_enabled() const;
XrFoveationLevelFB get_foveation_level() const;
void set_foveation_level(XrFoveationLevelFB p_foveation_level);
XrFoveationDynamicFB get_foveation_dynamic() const;
void set_foveation_dynamic(XrFoveationDynamicFB p_foveation_dynamic);
private:
static OpenXRFBFoveationExtension *singleton;
// Setup
String rendering_driver;
bool fb_foveation_ext = false;
bool fb_foveation_configuration_ext = false;
// Configuration
XrFoveationLevelFB foveation_level = XR_FOVEATION_LEVEL_NONE_FB;
XrFoveationDynamicFB foveation_dynamic = XR_FOVEATION_DYNAMIC_DISABLED_FB;
void update_profile();
// Enable foveation on this swapchain
XrSwapchainCreateInfoFoveationFB swapchain_create_info_foveation_fb;
OpenXRFBUpdateSwapchainExtension *swapchain_update_state_ext = nullptr;
// OpenXR API call wrappers
EXT_PROTO_XRRESULT_FUNC3(xrCreateFoveationProfileFB, (XrSession), session, (const XrFoveationProfileCreateInfoFB *), create_info, (XrFoveationProfileFB *), profile);
EXT_PROTO_XRRESULT_FUNC1(xrDestroyFoveationProfileFB, (XrFoveationProfileFB), profile);
};
#endif // OPENXR_FB_FOVEATION_EXTENSION_H