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Diffstat (limited to 'modules/openxr/extensions/openxr_extension_wrapper.h')
| -rw-r--r-- | modules/openxr/extensions/openxr_extension_wrapper.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/modules/openxr/extensions/openxr_extension_wrapper.h b/modules/openxr/extensions/openxr_extension_wrapper.h new file mode 100644 index 0000000000..f3064041b8 --- /dev/null +++ b/modules/openxr/extensions/openxr_extension_wrapper.h @@ -0,0 +1,107 @@ +/*************************************************************************/ +/* openxr_extension_wrapper.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* 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_EXTENSION_WRAPPER_H +#define OPENXR_EXTENSION_WRAPPER_H + +#include "core/error/error_macros.h" +#include "core/math/camera_matrix.h" +#include "core/templates/map.h" +#include "core/templates/rid.h" + +#include "thirdparty/openxr/src/common/xr_linear.h" +#include <openxr/openxr.h> + +class OpenXRAPI; +class OpenXRActionMap; + +class OpenXRExtensionWrapper { +protected: + OpenXRAPI *openxr_api = nullptr; + + // Store extension we require. + // If bool pointer is a nullptr this means this extension is mandatory and initialisation will fail if it is not available + // If bool pointer is set, value will be set to true or false depending on whether extension is available + Map<const char *, bool *> request_extensions; + +public: + virtual Map<const char *, bool *> get_request_extensions() { + return request_extensions; + } + + // These functions allow an extension to add entries to a struct chain. + // `p_next_pointer` points to the last struct that was created for this chain + // and should be used as the value for the `pNext` pointer in the first struct you add. + // You should return the pointer to the last struct you define as your result. + // If you are not adding any structs, just return `p_next_pointer`. + // See existing extensions for examples of this implementation. + virtual void *set_system_properties_and_get_next_pointer(void *p_next_pointer) { return p_next_pointer; } + virtual void *set_session_create_and_get_next_pointer(void *p_next_pointer) { return p_next_pointer; } + virtual void *set_swapchain_create_info_and_get_next_pointer(void *p_next_pointer) { return p_next_pointer; } + + virtual void on_instance_created(const XrInstance p_instance) {} + virtual void on_instance_destroyed() {} + virtual void on_session_created(const XrSession p_instance) {} + virtual void on_process() {} + virtual void on_pre_render() {} + virtual void on_session_destroyed() {} + + virtual void on_state_idle() {} + virtual void on_state_ready() {} + virtual void on_state_synchronized() {} + virtual void on_state_visible() {} + virtual void on_state_focused() {} + virtual void on_state_stopping() {} + virtual void on_state_loss_pending() {} + virtual void on_state_exiting() {} + + // Returns true if the event was handled, false otherwise. + virtual bool on_event_polled(const XrEventDataBuffer &event) { + return false; + } + + OpenXRExtensionWrapper(OpenXRAPI *p_openxr_api) { openxr_api = p_openxr_api; }; + virtual ~OpenXRExtensionWrapper() = default; +}; + +class OpenXRGraphicsExtensionWrapper : public OpenXRExtensionWrapper { +public: + virtual void get_usable_swapchain_formats(Vector<int64_t> &p_usable_swap_chains) = 0; + virtual String get_swapchain_format_name(int64_t p_swapchain_format) const = 0; + 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; + virtual void cleanup_swapchain_graphics_data(void **p_swapchain_graphics_data) = 0; + virtual bool create_projection_fov(const XrFovf p_fov, double p_z_near, double p_z_far, CameraMatrix &r_camera_matrix) = 0; + virtual bool copy_render_target_to_image(RID p_from_render_target, void *p_swapchain_graphics_data, int p_image_index) = 0; + + OpenXRGraphicsExtensionWrapper(OpenXRAPI *p_openxr_api) : + OpenXRExtensionWrapper(p_openxr_api){}; +}; + +#endif // ~OPENXR_EXTENSION_WRAPPER_H |