120 lines
5.3 KiB
C++
120 lines
5.3 KiB
C++
/*************************************************************************/
|
|
/* openxr_opengl_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_OPENGL_EXTENSION_H
|
|
#define OPENXR_OPENGL_EXTENSION_H
|
|
|
|
#ifdef GLES3_ENABLED
|
|
|
|
#include "core/templates/vector.h"
|
|
#include "openxr_extension_wrapper.h"
|
|
|
|
#include "../openxr_api.h"
|
|
#include "../util.h"
|
|
|
|
#ifdef ANDROID_ENABLED
|
|
#define XR_USE_GRAPHICS_API_OPENGL_ES
|
|
#include <EGL/egl.h>
|
|
#include <EGL/eglext.h>
|
|
#include <GLES3/gl3.h>
|
|
#include <GLES3/gl3ext.h>
|
|
#else
|
|
#define XR_USE_GRAPHICS_API_OPENGL
|
|
#endif
|
|
|
|
#ifdef WINDOWS_ENABLED
|
|
// Including windows.h here is absolutely evil, we shouldn't be doing this outside of platform
|
|
// however due to the way the openxr headers are put together, we have no choice.
|
|
#include <windows.h>
|
|
#endif
|
|
|
|
#ifdef X11_ENABLED
|
|
#include OPENGL_INCLUDE_H
|
|
#define GL_GLEXT_PROTOTYPES 1
|
|
#define GL3_PROTOTYPES 1
|
|
#include <GL/gl.h>
|
|
#include <GL/glext.h>
|
|
#include <GL/glx.h>
|
|
#include <X11/Xlib.h>
|
|
#endif
|
|
|
|
#ifdef ANDROID_ENABLED
|
|
// The jobject type from jni.h is used by openxr_platform.h on Android.
|
|
#include <jni.h>
|
|
#endif
|
|
|
|
// include platform dependent structs
|
|
#include <openxr/openxr_platform.h>
|
|
|
|
class OpenXROpenGLExtension : public OpenXRGraphicsExtensionWrapper {
|
|
public:
|
|
OpenXROpenGLExtension(OpenXRAPI *p_openxr_api);
|
|
virtual ~OpenXROpenGLExtension() 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 OpenXROpenGLExtension *singleton;
|
|
|
|
#ifdef WIN32
|
|
static XrGraphicsBindingOpenGLWin32KHR graphics_binding_gl;
|
|
#elif ANDROID_ENABLED
|
|
static XrGraphicsBindingOpenGLESAndroidKHR graphics_binding_gl;
|
|
#else
|
|
static XrGraphicsBindingOpenGLXlibKHR graphics_binding_gl;
|
|
#endif
|
|
|
|
struct SwapchainGraphicsData {
|
|
bool is_multiview;
|
|
Vector<RID> texture_rids;
|
|
};
|
|
|
|
bool check_graphics_api_support(XrVersion p_desired_version);
|
|
|
|
#ifdef ANDROID_ENABLED
|
|
EXT_PROTO_XRRESULT_FUNC3(xrGetOpenGLESGraphicsRequirementsKHR, (XrInstance), p_instance, (XrSystemId), p_system_id, (XrGraphicsRequirementsOpenGLESKHR *), p_graphics_requirements)
|
|
#else
|
|
EXT_PROTO_XRRESULT_FUNC3(xrGetOpenGLGraphicsRequirementsKHR, (XrInstance), p_instance, (XrSystemId), p_system_id, (XrGraphicsRequirementsOpenGLKHR *), p_graphics_requirements)
|
|
#endif
|
|
EXT_PROTO_XRRESULT_FUNC4(xrEnumerateSwapchainImages, (XrSwapchain), p_swapchain, (uint32_t), p_image_capacity_input, (uint32_t *), p_image_count_output, (XrSwapchainImageBaseHeader *), p_images)
|
|
};
|
|
|
|
#endif // GLES3_ENABLED
|
|
|
|
#endif // OPENXR_OPENGL_EXTENSION_H
|