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295 lines
13 KiB
C++
295 lines
13 KiB
C++
/**************************************************************************/
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/* openxr_composition_layer_extension.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) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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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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#pragma once
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#include "openxr_extension_wrapper.h"
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#include "../openxr_api.h"
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#ifdef ANDROID_ENABLED
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#include <jni.h>
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// Copied here from openxr_platform.h, in order to avoid including that whole header,
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// which can cause compilation issues on some platforms.
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typedef XrResult(XRAPI_PTR *PFN_xrCreateSwapchainAndroidSurfaceKHR)(XrSession session, const XrSwapchainCreateInfo *info, XrSwapchain *swapchain, jobject *surface);
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#endif
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class JavaObject;
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// This extension provides access to composition layers for displaying 2D content through the XR compositor.
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#define OPENXR_LAYER_FUNC1(m_name, m_arg1) \
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void _composition_layer_##m_name##_rt(RID p_layer, m_arg1 p1) { \
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CompositionLayer *layer = composition_layer_owner.get_or_null(p_layer); \
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ERR_FAIL_NULL(layer); \
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layer->m_name(p1); \
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} \
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void composition_layer_##m_name(RID p_layer, m_arg1 p1) { \
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RenderingServer::get_singleton()->call_on_render_thread(callable_mp(this, &OpenXRCompositionLayerExtension::_composition_layer_##m_name##_rt).bind(p_layer, p1)); \
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}
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#define OPENXR_LAYER_FUNC2(m_name, m_arg1, m_arg2) \
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void _composition_layer_##m_name##_rt(RID p_layer, m_arg1 p1, m_arg2 p2) { \
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CompositionLayer *layer = composition_layer_owner.get_or_null(p_layer); \
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ERR_FAIL_NULL(layer); \
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layer->m_name(p1, p2); \
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} \
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void composition_layer_##m_name(RID p_layer, m_arg1 p1, m_arg2 p2) { \
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RenderingServer::get_singleton()->call_on_render_thread(callable_mp(this, &OpenXRCompositionLayerExtension::_composition_layer_##m_name##_rt).bind(p_layer, p1, p2)); \
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}
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// OpenXRCompositionLayerExtension enables the extensions related to this functionality
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class OpenXRCompositionLayerExtension : public OpenXRExtensionWrapper {
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GDCLASS(OpenXRCompositionLayerExtension, OpenXRExtensionWrapper);
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protected:
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static void _bind_methods() {}
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public:
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// Must be identical to Filter enum definition in OpenXRCompositionLayer.
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enum Filter {
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FILTER_NEAREST,
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FILTER_LINEAR,
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FILTER_CUBIC,
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};
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// Must be identical to MipmapMode enum definition in OpenXRCompositionLayer.
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enum MipmapMode {
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MIPMAP_MODE_DISABLED,
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MIPMAP_MODE_NEAREST,
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MIPMAP_MODE_LINEAR,
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};
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// Must be identical to Wrap enum definition in OpenXRCompositionLayer.
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enum Wrap {
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WRAP_CLAMP_TO_BORDER,
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WRAP_CLAMP_TO_EDGE,
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WRAP_REPEAT,
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WRAP_MIRRORED_REPEAT,
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WRAP_MIRROR_CLAMP_TO_EDGE,
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};
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// Must be identical to Swizzle enum definition in OpenXRCompositionLayer.
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enum Swizzle {
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SWIZZLE_RED,
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SWIZZLE_GREEN,
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SWIZZLE_BLUE,
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SWIZZLE_ALPHA,
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SWIZZLE_ZERO,
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SWIZZLE_ONE,
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};
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struct SwapchainState {
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Filter min_filter = Filter::FILTER_LINEAR;
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Filter mag_filter = Filter::FILTER_LINEAR;
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MipmapMode mipmap_mode = MipmapMode::MIPMAP_MODE_LINEAR;
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Wrap horizontal_wrap = Wrap::WRAP_CLAMP_TO_BORDER;
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Wrap vertical_wrap = Wrap::WRAP_CLAMP_TO_BORDER;
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Swizzle red_swizzle = Swizzle::SWIZZLE_RED;
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Swizzle green_swizzle = Swizzle::SWIZZLE_GREEN;
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Swizzle blue_swizzle = Swizzle::SWIZZLE_BLUE;
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Swizzle alpha_swizzle = Swizzle::SWIZZLE_ALPHA;
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float max_anisotropy = 1.0;
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Color border_color = { 0.0, 0.0, 0.0, 0.0 };
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};
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static OpenXRCompositionLayerExtension *get_singleton();
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OpenXRCompositionLayerExtension();
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virtual ~OpenXRCompositionLayerExtension() override;
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virtual HashMap<String, bool *> get_requested_extensions() override;
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virtual void on_instance_created(const XrInstance p_instance) override;
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virtual void on_session_created(const XrSession p_session) override;
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virtual void on_session_destroyed() override;
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virtual void on_pre_render() override;
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virtual int get_composition_layer_count() override;
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virtual XrCompositionLayerBaseHeader *get_composition_layer(int p_index) override;
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virtual int get_composition_layer_order(int p_index) override;
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// The data on p_openxr_layer will be copied - there is no need to keep it valid after this call.
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RID composition_layer_create(XrCompositionLayerBaseHeader *p_openxr_layer);
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void composition_layer_free(RID p_layer);
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void composition_layer_register(RID p_layer);
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void composition_layer_unregister(RID p_layer);
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OPENXR_LAYER_FUNC2(set_viewport, RID, const Size2i &);
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OPENXR_LAYER_FUNC2(set_use_android_surface, bool, const Size2i &);
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OPENXR_LAYER_FUNC1(set_sort_order, int);
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OPENXR_LAYER_FUNC1(set_alpha_blend, bool);
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OPENXR_LAYER_FUNC1(set_transform, const Transform3D &);
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OPENXR_LAYER_FUNC1(set_protected_content, bool);
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OPENXR_LAYER_FUNC1(set_extension_property_values, Dictionary);
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OPENXR_LAYER_FUNC1(set_min_filter, Filter);
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OPENXR_LAYER_FUNC1(set_mag_filter, Filter);
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OPENXR_LAYER_FUNC1(set_mipmap_mode, MipmapMode);
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OPENXR_LAYER_FUNC1(set_horizontal_wrap, Wrap);
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OPENXR_LAYER_FUNC1(set_vertical_wrap, Wrap);
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OPENXR_LAYER_FUNC1(set_red_swizzle, Swizzle);
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OPENXR_LAYER_FUNC1(set_blue_swizzle, Swizzle);
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OPENXR_LAYER_FUNC1(set_green_swizzle, Swizzle);
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OPENXR_LAYER_FUNC1(set_alpha_swizzle, Swizzle);
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OPENXR_LAYER_FUNC1(set_max_anisotropy, float);
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OPENXR_LAYER_FUNC1(set_border_color, const Color &);
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OPENXR_LAYER_FUNC1(set_quad_size, const Size2 &);
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OPENXR_LAYER_FUNC1(set_cylinder_radius, float);
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OPENXR_LAYER_FUNC1(set_cylinder_aspect_ratio, float);
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OPENXR_LAYER_FUNC1(set_cylinder_central_angle, float);
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OPENXR_LAYER_FUNC1(set_equirect_radius, float);
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OPENXR_LAYER_FUNC1(set_equirect_central_horizontal_angle, float);
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OPENXR_LAYER_FUNC1(set_equirect_upper_vertical_angle, float);
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OPENXR_LAYER_FUNC1(set_equirect_lower_vertical_angle, float);
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Ref<JavaObject> composition_layer_get_android_surface(RID p_layer);
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bool is_available(XrStructureType p_which);
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bool is_android_surface_swapchain_available() { return android_surface_ext_available; }
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private:
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static OpenXRCompositionLayerExtension *singleton;
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bool cylinder_ext_available = false;
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bool equirect_ext_available = false;
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bool android_surface_ext_available = false;
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void _composition_layer_free_rt(RID p_layer);
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void _composition_layer_register_rt(RID p_layer);
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void _composition_layer_unregister_rt(RID p_layer);
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#ifdef ANDROID_ENABLED
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bool create_android_surface_swapchain(XrSwapchainCreateInfo *p_info, XrSwapchain *r_swapchain, jobject *r_surface);
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EXT_PROTO_XRRESULT_FUNC1(xrDestroySwapchain, (XrSwapchain), swapchain)
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EXT_PROTO_XRRESULT_FUNC4(xrCreateSwapchainAndroidSurfaceKHR, (XrSession), session, (const XrSwapchainCreateInfo *), info, (XrSwapchain *), swapchain, (jobject *), surface)
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#endif
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struct CompositionLayer {
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union {
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XrCompositionLayerBaseHeader composition_layer;
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XrCompositionLayerQuad composition_layer_quad;
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XrCompositionLayerCylinderKHR composition_layer_cylinder;
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XrCompositionLayerEquirect2KHR composition_layer_equirect;
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};
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int sort_order = 1;
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bool alpha_blend = false;
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Dictionary extension_property_values;
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bool extension_property_values_changed = true;
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struct {
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RID viewport;
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Size2i viewport_size;
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OpenXRAPI::OpenXRSwapChainInfo swapchain_info;
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bool static_image = false;
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bool swapchain_protected_content = false;
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} subviewport;
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#ifdef ANDROID_ENABLED
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struct {
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XrSwapchain swapchain = XR_NULL_HANDLE;
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Ref<JavaObject> surface;
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} android_surface;
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#endif
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bool use_android_surface = false;
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bool protected_content = false;
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Size2i swapchain_size;
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SwapchainState swapchain_state;
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bool swapchain_state_is_dirty = false;
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void set_viewport(RID p_viewport, const Size2i &p_size);
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void set_use_android_surface(bool p_use_android_surface, const Size2i &p_size);
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void set_sort_order(int p_sort_order) { sort_order = p_sort_order; }
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void set_alpha_blend(bool p_alpha_blend);
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void set_protected_content(bool p_protected_content) { protected_content = p_protected_content; }
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void set_transform(const Transform3D &p_transform);
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void set_extension_property_values(const Dictionary &p_extension_property_values);
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void set_min_filter(Filter p_mode);
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void set_mag_filter(Filter p_mode);
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void set_mipmap_mode(MipmapMode p_mode);
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void set_horizontal_wrap(Wrap p_mode);
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void set_vertical_wrap(Wrap p_mode);
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void set_red_swizzle(Swizzle p_mode);
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void set_green_swizzle(Swizzle p_mode);
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void set_blue_swizzle(Swizzle p_mode);
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void set_alpha_swizzle(Swizzle p_mode);
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void set_max_anisotropy(float p_value);
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void set_border_color(const Color &p_color);
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void set_quad_size(const Size2 &p_size);
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void set_cylinder_radius(float p_radius);
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void set_cylinder_aspect_ratio(float p_aspect_ratio);
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void set_cylinder_central_angle(float p_central_angle);
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void set_equirect_radius(float p_radius);
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void set_equirect_central_horizontal_angle(float p_angle);
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void set_equirect_upper_vertical_angle(float p_angle);
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void set_equirect_lower_vertical_angle(float p_angle);
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Ref<JavaObject> get_android_surface();
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void on_pre_render();
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XrCompositionLayerBaseHeader *get_composition_layer();
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void free();
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private:
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void update_swapchain_state();
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void update_swapchain_sub_image(XrSwapchainSubImage &r_subimage);
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bool update_and_acquire_swapchain(bool p_static_image);
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RID get_current_swapchain_texture();
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void free_swapchain();
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#ifdef ANDROID_ENABLED
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void create_android_surface();
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#endif
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};
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Mutex composition_layer_mutex;
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RID_Owner<CompositionLayer, true> composition_layer_owner;
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LocalVector<CompositionLayer *> registered_composition_layers;
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};
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VARIANT_ENUM_CAST(OpenXRCompositionLayerExtension::Filter);
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VARIANT_ENUM_CAST(OpenXRCompositionLayerExtension::MipmapMode);
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VARIANT_ENUM_CAST(OpenXRCompositionLayerExtension::Wrap);
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VARIANT_ENUM_CAST(OpenXRCompositionLayerExtension::Swizzle);
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#undef OPENXR_LAYER_FUNC1
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#undef OPENXR_LAYER_FUNC2
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