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Diffstat (limited to 'modules/openxr/extensions/openxr_vulkan_extension.h')
| -rw-r--r-- | modules/openxr/extensions/openxr_vulkan_extension.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/modules/openxr/extensions/openxr_vulkan_extension.h b/modules/openxr/extensions/openxr_vulkan_extension.h new file mode 100644 index 0000000000..c04ea2c1dd --- /dev/null +++ b/modules/openxr/extensions/openxr_vulkan_extension.h @@ -0,0 +1,93 @@ +/*************************************************************************/ +/* openxr_vulkan_extension.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_VULKAN_EXTENSION_H +#define OPENXR_VULKAN_EXTENSION_H + +#include "core/templates/vector.h" +#include "openxr_extension_wrapper.h" + +#include "drivers/vulkan/vulkan_context.h" + +// Forward declare these so we don't need OpenXR headers where-ever this is included +// Including OpenXR at this point gives loads and loads of compile issues especially +// on Windows because windows.h is EVIL and really shouldn't be included outside of platform +// but we really don't have a choice in the matter + +struct XrGraphicsRequirementsVulkanKHR; +struct XrVulkanInstanceCreateInfoKHR; +struct XrVulkanGraphicsDeviceGetInfoKHR; +struct XrVulkanDeviceCreateInfoKHR; +struct XrGraphicsBindingVulkanKHR; + +class OpenXRVulkanExtension : public OpenXRGraphicsExtensionWrapper, VulkanHooks { +public: + OpenXRVulkanExtension(OpenXRAPI *p_openxr_api); + virtual ~OpenXRVulkanExtension() 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 bool create_vulkan_instance(const VkInstanceCreateInfo *p_vulkan_create_info, VkInstance *r_instance); + virtual bool get_physical_device(VkPhysicalDevice *r_device); + virtual bool create_vulkan_device(const VkDeviceCreateInfo *p_device_create_info, VkDevice *r_device); + + virtual void get_usable_swapchain_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, CameraMatrix &r_camera_matrix) override; + virtual bool copy_render_target_to_image(RID p_from_render_target, void *p_swapchain_graphics_data, int p_image_index) override; + +private: + static OpenXRVulkanExtension *singleton; + static XrGraphicsBindingVulkanKHR graphics_binding_vulkan; // declaring this as static so we don't need to know its size and we only need it once when creating our session + + struct SwapchainGraphicsData { + bool is_multiview; + Vector<RID> image_rids; + Vector<RID> framebuffers; + }; + + bool check_graphics_api_support(XrVersion p_desired_version); + + VkInstance vulkan_instance; + VkPhysicalDevice vulkan_physical_device; + VkDevice vulkan_device; + uint32_t vulkan_queue_family_index; + uint32_t vulkan_queue_index; + + XrResult xrGetVulkanGraphicsRequirements2KHR(XrInstance p_instance, XrSystemId p_system_id, XrGraphicsRequirementsVulkanKHR *p_graphics_requirements); + XrResult xrCreateVulkanInstanceKHR(XrInstance p_instance, const XrVulkanInstanceCreateInfoKHR *p_create_info, VkInstance *r_vulkan_instance, VkResult *r_vulkan_result); + XrResult xrGetVulkanGraphicsDevice2KHR(XrInstance p_instance, const XrVulkanGraphicsDeviceGetInfoKHR *p_get_info, VkPhysicalDevice *r_vulkan_physical_device); + XrResult xrCreateVulkanDeviceKHR(XrInstance p_instance, const XrVulkanDeviceCreateInfoKHR *p_create_info, VkDevice *r_device, VkResult *r_result); +}; + +#endif // !OPENXR_VULKAN_EXTENSION_H |