106 lines
5.4 KiB
C++
106 lines
5.4 KiB
C++
/*************************************************************************/
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/* openxr_extension_wrapper.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef OPENXR_EXTENSION_WRAPPER_H
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#define OPENXR_EXTENSION_WRAPPER_H
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#include "core/error/error_macros.h"
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#include "core/math/camera_matrix.h"
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#include "core/templates/map.h"
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#include "core/templates/rid.h"
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#include "thirdparty/openxr/src/common/xr_linear.h"
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#include <openxr/openxr.h>
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class OpenXRAPI;
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class OpenXRExtensionWrapper {
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protected:
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OpenXRAPI *openxr_api;
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// Store extension we require.
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// If bool pointer is a nullptr this means this extension is mandatory and initialisation will fail if it is not available
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// If bool pointer is set, value will be set to true or false depending on whether extension is available
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Map<const char *, bool *> request_extensions;
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public:
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virtual Map<const char *, bool *> get_request_extensions() {
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return request_extensions;
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}
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// These functions allow an extension to add entries to a struct chain.
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// `p_next_pointer` points to the last struct that was created for this chain
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// and should be used as the value for the `pNext` pointer in the first struct you add.
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// You should return the pointer to the last struct you define as your result.
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// If you are not adding any structs, just return `p_next_pointer`.
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// See existing extensions for examples of this implementation.
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virtual void *set_system_properties_and_get_next_pointer(void *p_next_pointer) { return p_next_pointer; }
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virtual void *set_session_create_and_get_next_pointer(void *p_next_pointer) { return p_next_pointer; }
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virtual void *set_swapchain_create_info_and_get_next_pointer(void *p_next_pointer) { return p_next_pointer; }
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virtual void on_instance_created(const XrInstance p_instance) {}
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virtual void on_instance_destroyed() {}
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virtual void on_session_created(const XrSession p_instance) {}
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virtual void on_process() {}
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virtual void on_pre_render() {}
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virtual void on_session_destroyed() {}
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virtual void on_state_idle() {}
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virtual void on_state_ready() {}
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virtual void on_state_synchronized() {}
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virtual void on_state_visible() {}
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virtual void on_state_focused() {}
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virtual void on_state_stopping() {}
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virtual void on_state_loss_pending() {}
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virtual void on_state_exiting() {}
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// Returns true if the event was handled, false otherwise.
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virtual bool on_event_polled(const XrEventDataBuffer &event) {
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return false;
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}
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OpenXRExtensionWrapper(OpenXRAPI *p_openxr_api) { openxr_api = p_openxr_api; };
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virtual ~OpenXRExtensionWrapper() = default;
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};
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class OpenXRGraphicsExtensionWrapper : public OpenXRExtensionWrapper {
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public:
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virtual void get_usable_swapchain_formats(Vector<int64_t> &p_usable_swap_chains) = 0;
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virtual String get_swapchain_format_name(int64_t p_swapchain_format) const = 0;
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virtual bool get_swapchain_image_data(XrSwapchain p_swapchain, int64_t p_swapchain_format, uint32_t p_width, uint32_t p_height, uint32_t p_sample_count, uint32_t p_array_size, void **r_swapchain_graphics_data) = 0;
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virtual void cleanup_swapchain_graphics_data(void **p_swapchain_graphics_data) = 0;
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virtual bool create_projection_fov(const XrFovf p_fov, double p_z_near, double p_z_far, CameraMatrix &r_camera_matrix) = 0;
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virtual bool copy_render_target_to_image(RID p_from_render_target, void *p_swapchain_graphics_data, int p_image_index) = 0;
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OpenXRGraphicsExtensionWrapper(OpenXRAPI *p_openxr_api) :
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OpenXRExtensionWrapper(p_openxr_api){};
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};
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#endif // ~OPENXR_EXTENSION_WRAPPER_H
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