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OpenXR: Add Metal support #98872

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merged 1 commit into from
Dec 16, 2024
Merged

OpenXR: Add Metal support #98872

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2 changes: 2 additions & 0 deletions modules/openxr/extensions/SCsub
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,8 @@ if env["platform"] == "android":
env_openxr.add_source_files(module_obj, "platform/openxr_android_extension.cpp")
if env["vulkan"]:
env_openxr.add_source_files(module_obj, "platform/openxr_vulkan_extension.cpp")
if env["metal"]:
env_openxr.add_source_files(module_obj, "platform/openxr_metal_extension.mm")
if env["opengl3"] and env["platform"] != "macos":
env_openxr.add_source_files(module_obj, "platform/openxr_opengl_extension.cpp")

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72 changes: 72 additions & 0 deletions modules/openxr/extensions/platform/openxr_metal_extension.h
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Original file line number Diff line number Diff line change
@@ -0,0 +1,72 @@
/**************************************************************************/
/* openxr_metal_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_METAL_EXTENSION_H
#define OPENXR_METAL_EXTENSION_H

#include "../../openxr_api.h"
#include "../../util.h"
#include "../openxr_extension_wrapper.h"

#include "core/templates/vector.h"

// Always include this as late as possible.
#include "../../openxr_platform_inc.h"

class OpenXRMetalExtension : public OpenXRGraphicsExtensionWrapper {
public:
virtual HashMap<String, bool *> get_requested_extensions() override;

virtual void on_instance_created(const XrInstance p_instance) override;
virtual void *set_session_create_and_get_next_pointer(void *p_next_pointer) override;

virtual void get_usable_swapchain_formats(Vector<int64_t> &p_usable_swap_chains) override;
virtual void get_usable_depth_formats(Vector<int64_t> &p_usable_swap_chains) override;
virtual String get_swapchain_format_name(int64_t p_swapchain_format) const override;
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) override;
virtual void cleanup_swapchain_graphics_data(void **p_swapchain_graphics_data) override;
virtual bool create_projection_fov(const XrFovf p_fov, double p_z_near, double p_z_far, Projection &r_camera_matrix) override;
virtual RID get_texture(void *p_swapchain_graphics_data, int p_image_index) override;

private:
static XrGraphicsBindingMetalKHR graphics_binding_metal;

struct SwapchainGraphicsData {
bool is_multiview;
Vector<RID> texture_rids;
};

bool check_graphics_api_support();

EXT_PROTO_XRRESULT_FUNC3(xrGetMetalGraphicsRequirementsKHR, (XrInstance), p_instance, (XrSystemId), p_system_id, (XrGraphicsRequirementsMetalKHR *), p_graphics_requirements)
EXT_PROTO_XRRESULT_FUNC4(xrEnumerateSwapchainImages, (XrSwapchain), p_swapchain, (uint32_t), p_image_capacity_input, (uint32_t *), p_image_count_output, (XrSwapchainImageBaseHeader *), p_images)
};

#endif // OPENXR_METAL_EXTENSION_H
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