initial commit, 4.5 stable

modules/openxr/extensions/openxr_fb_update_swapchain_extension.h

@@ -0,0 +1,91 @@
+/**************************************************************************/
+/*  openxr_fb_update_swapchain_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.                 */
+/**************************************************************************/
+
+#pragma once
+
+// This extension implements the FB update swapchain extension.
+// This is an extension Meta added to further configure the swapchain.
+// Other Android based devices are implementing this as well, see:
+// https://github.khronos.org/OpenXR-Inventory/extension_support.html#XR_FB_swapchain_update_state
+
+#include "../openxr_api.h"
+#include "../util.h"
+#include "openxr_composition_layer_extension.h"
+#include "openxr_extension_wrapper.h"
+
+class OpenXRFBUpdateSwapchainExtension : public OpenXRExtensionWrapper {
+	GDCLASS(OpenXRFBUpdateSwapchainExtension, OpenXRExtensionWrapper);
+
+protected:
+	static void _bind_methods() {}
+
+	friend class OpenXRFBFoveationExtension;
+
+public:
+	static OpenXRFBUpdateSwapchainExtension *get_singleton();
+
+	OpenXRFBUpdateSwapchainExtension(const String &p_rendering_driver);
+	virtual ~OpenXRFBUpdateSwapchainExtension() 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;
+
+	bool is_enabled() const;
+	bool is_android_ext_enabled() const;
+
+	void update_swapchain_state(XrSwapchain p_swapchain, const OpenXRViewportCompositionLayerProvider::SwapchainState *p_swapchain_state);
+
+	void update_swapchain_surface_size(XrSwapchain p_swapchain, const Size2i &p_size);
+
+private:
+	static OpenXRFBUpdateSwapchainExtension *singleton;
+
+	// Setup
+	String rendering_driver;
+	bool fb_swapchain_update_state_ext = false;
+	bool fb_swapchain_update_state_vulkan_ext = false;
+	bool fb_swapchain_update_state_opengles_ext = false;
+	bool fb_swapchain_update_state_android_ext = false;
+
+	uint32_t filter_to_gl(OpenXRViewportCompositionLayerProvider::Filter p_filter, OpenXRViewportCompositionLayerProvider::MipmapMode p_mipmap_mode = OpenXRViewportCompositionLayerProvider::MipmapMode::MIPMAP_MODE_DISABLED);
+	uint32_t wrap_to_gl(OpenXRViewportCompositionLayerProvider::Wrap p_wrap);
+	uint32_t swizzle_to_gl(OpenXRViewportCompositionLayerProvider::Swizzle p_swizzle);
+
+	uint32_t filter_to_vk(OpenXRViewportCompositionLayerProvider::Filter p_filter);
+	uint32_t mipmap_mode_to_vk(OpenXRViewportCompositionLayerProvider::MipmapMode p_mipmap);
+	uint32_t wrap_to_vk(OpenXRViewportCompositionLayerProvider::Wrap p_wrap);
+	uint32_t swizzle_to_vk(OpenXRViewportCompositionLayerProvider::Swizzle p_swizzle);
+
+	// OpenXR API call wrappers
+	EXT_PROTO_XRRESULT_FUNC2(xrUpdateSwapchainFB, (XrSwapchain), swapchain, (const XrSwapchainStateBaseHeaderFB *), state);
+	EXT_PROTO_XRRESULT_FUNC2(xrGetSwapchainStateFB, (XrSwapchain), swapchain, (XrSwapchainStateBaseHeaderFB *), state);
+};