diff options
Diffstat (limited to 'modules/openxr')
| -rw-r--r-- | modules/openxr/SCsub | 2 | ||||
| -rw-r--r-- | modules/openxr/extensions/openxr_opengl_extension.cpp | 466 | ||||
| -rw-r--r-- | modules/openxr/extensions/openxr_opengl_extension.h | 120 | ||||
| -rw-r--r-- | modules/openxr/openxr_api.cpp | 35 |
4 files changed, 620 insertions, 3 deletions
diff --git a/modules/openxr/SCsub b/modules/openxr/SCsub index b5978ab134..84542be3b9 100644 --- a/modules/openxr/SCsub +++ b/modules/openxr/SCsub @@ -90,6 +90,8 @@ if env["platform"] == "android": env_openxr.add_source_files(module_obj, "extensions/openxr_android_extension.cpp") if env["vulkan"]: env_openxr.add_source_files(module_obj, "extensions/openxr_vulkan_extension.cpp") +if env["opengl3"]: + env_openxr.add_source_files(module_obj, "extensions/openxr_opengl_extension.cpp") env_openxr.add_source_files(module_obj, "extensions/openxr_palm_pose_extension.cpp") env_openxr.add_source_files(module_obj, "extensions/openxr_composition_layer_depth_extension.cpp") diff --git a/modules/openxr/extensions/openxr_opengl_extension.cpp b/modules/openxr/extensions/openxr_opengl_extension.cpp new file mode 100644 index 0000000000..ee69144123 --- /dev/null +++ b/modules/openxr/extensions/openxr_opengl_extension.cpp @@ -0,0 +1,466 @@ +/*************************************************************************/ +/* openxr_opengl_extension.cpp */ +/*************************************************************************/ +/* 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. */ +/*************************************************************************/ + +#ifdef GLES3_ENABLED + +#include "../extensions/openxr_opengl_extension.h" +#include "../openxr_util.h" +#include "drivers/gles3/effects/copy_effects.h" +#include "drivers/gles3/storage/texture_storage.h" +#include "servers/rendering/rendering_server_globals.h" +#include "servers/rendering_server.h" + +OpenXROpenGLExtension::OpenXROpenGLExtension(OpenXRAPI *p_openxr_api) : + OpenXRGraphicsExtensionWrapper(p_openxr_api) { +#ifdef ANDROID_ENABLED + request_extensions[XR_KHR_OPENGL_ES_ENABLE_EXTENSION_NAME] = nullptr; +#else + request_extensions[XR_KHR_OPENGL_ENABLE_EXTENSION_NAME] = nullptr; +#endif + + ERR_FAIL_NULL(openxr_api); +} + +OpenXROpenGLExtension::~OpenXROpenGLExtension() { +} + +void OpenXROpenGLExtension::on_instance_created(const XrInstance p_instance) { + ERR_FAIL_NULL(openxr_api); + + // Obtain pointers to functions we're accessing here. + +#ifdef ANDROID_ENABLED + EXT_INIT_XR_FUNC(xrGetOpenGLESGraphicsRequirementsKHR); +#else + EXT_INIT_XR_FUNC(xrGetOpenGLGraphicsRequirementsKHR); +#endif + EXT_INIT_XR_FUNC(xrEnumerateSwapchainImages); +} + +bool OpenXROpenGLExtension::check_graphics_api_support(XrVersion p_desired_version) { + ERR_FAIL_NULL_V(openxr_api, false); + + XrSystemId system_id = openxr_api->get_system_id(); + XrInstance instance = openxr_api->get_instance(); + +#ifdef ANDROID_ENABLED + XrGraphicsRequirementsOpenGLESKHR opengl_requirements; + opengl_requirements.type = XR_TYPE_GRAPHICS_REQUIREMENTS_OPENGL_ES_KHR; + opengl_requirements.next = nullptr; + + XrResult result = xrGetOpenGLESGraphicsRequirementsKHR(instance, system_id, &opengl_requirements); + if (!openxr_api->xr_result(result, "Failed to get OpenGL graphics requirements!")) { + return false; + } +#else + XrGraphicsRequirementsOpenGLKHR opengl_requirements; + opengl_requirements.type = XR_TYPE_GRAPHICS_REQUIREMENTS_OPENGL_KHR; + opengl_requirements.next = nullptr; + + XrResult result = xrGetOpenGLGraphicsRequirementsKHR(instance, system_id, &opengl_requirements); + if (!openxr_api->xr_result(result, "Failed to get OpenGL graphics requirements!")) { + return false; + } +#endif + + if (p_desired_version < opengl_requirements.minApiVersionSupported) { + print_line("OpenXR: Requested OpenGL version does not meet the minimum version this runtime supports."); + print_line("- desired_version ", OpenXRUtil::make_xr_version_string(p_desired_version)); + print_line("- minApiVersionSupported ", OpenXRUtil::make_xr_version_string(opengl_requirements.minApiVersionSupported)); + print_line("- maxApiVersionSupported ", OpenXRUtil::make_xr_version_string(opengl_requirements.maxApiVersionSupported)); + return false; + } + + if (p_desired_version > opengl_requirements.maxApiVersionSupported) { + print_line("OpenXR: Requested OpenGL version exceeds the maximum version this runtime has been tested on and is known to support."); + print_line("- desired_version ", OpenXRUtil::make_xr_version_string(p_desired_version)); + print_line("- minApiVersionSupported ", OpenXRUtil::make_xr_version_string(opengl_requirements.minApiVersionSupported)); + print_line("- maxApiVersionSupported ", OpenXRUtil::make_xr_version_string(opengl_requirements.maxApiVersionSupported)); + } + + return true; +} + +#ifdef WIN32 +XrGraphicsBindingOpenGLWin32KHR OpenXROpenGLExtension::graphics_binding_gl; +#elif ANDROID_ENABLED +XrGraphicsBindingOpenGLESAndroidKHR OpenXROpenGLExtension::graphics_binding_gl; +#else +XrGraphicsBindingOpenGLXlibKHR OpenXROpenGLExtension::graphics_binding_gl; +#endif + +void *OpenXROpenGLExtension::set_session_create_and_get_next_pointer(void *p_next_pointer) { + XrVersion desired_version = XR_MAKE_VERSION(3, 3, 0); + + if (!check_graphics_api_support(desired_version)) { + print_line("OpenXR: Trying to initialize with OpenGL anyway..."); + //return p_next_pointer; + } + + DisplayServer *display_server = DisplayServer::get_singleton(); + +#ifdef WIN32 + graphics_binding_gl.type = XR_TYPE_GRAPHICS_BINDING_OPENGL_WIN32_KHR, + graphics_binding_gl.next = p_next_pointer; + + graphics_binding_gl.hDC = (HDC)display_server->window_get_native_handle(DisplayServer::WINDOW_VIEW); + graphics_binding_gl.hGLRC = (HGLRC)display_server->window_get_native_handle(DisplayServer::OPENGL_CONTEXT); +#elif ANDROID_ENABLED + graphics_binding_gl.type = XR_TYPE_GRAPHICS_BINDING_OPENGL_ES_ANDROID_KHR; + graphics_binding_gl.next = p_next_pointer; + + graphics_binding_gl.display = eglGetCurrentDisplay(); + graphics_binding_gl.config = (EGLConfig)0; // https://github.com/KhronosGroup/OpenXR-SDK-Source/blob/master/src/tests/hello_xr/graphicsplugin_opengles.cpp#L122 + graphics_binding_gl.context = eglGetCurrentContext(); +#else + graphics_binding_gl.type = XR_TYPE_GRAPHICS_BINDING_OPENGL_XLIB_KHR; + graphics_binding_gl.next = p_next_pointer; + + void *display_handle = (void *)display_server->window_get_native_handle(DisplayServer::DISPLAY_HANDLE); + void *glxcontext_handle = (void *)display_server->window_get_native_handle(DisplayServer::OPENGL_CONTEXT); + void *glxdrawable_handle = (void *)display_server->window_get_native_handle(DisplayServer::WINDOW_HANDLE); + + graphics_binding_gl.xDisplay = (Display *)display_handle; + graphics_binding_gl.glxContext = (GLXContext)glxcontext_handle; + graphics_binding_gl.glxDrawable = (GLXDrawable)glxdrawable_handle; + + // spec says to use proper values but runtimes don't care + graphics_binding_gl.visualid = 0; + graphics_binding_gl.glxFBConfig = 0; +#endif + + return &graphics_binding_gl; +} + +void OpenXROpenGLExtension::get_usable_swapchain_formats(Vector<int64_t> &p_usable_swap_chains) { +#ifdef WIN32 + p_usable_swap_chains.push_back(GL_SRGB8_ALPHA8); + p_usable_swap_chains.push_back(GL_RGBA8); +#elif ANDROID_ENABLED + p_usable_swap_chains.push_back(GL_SRGB8_ALPHA8); + p_usable_swap_chains.push_back(GL_RGBA8); +#else + p_usable_swap_chains.push_back(GL_SRGB8_ALPHA8_EXT); + p_usable_swap_chains.push_back(GL_RGBA8_EXT); +#endif +} + +void OpenXROpenGLExtension::get_usable_depth_formats(Vector<int64_t> &p_usable_depth_formats) { + p_usable_depth_formats.push_back(GL_DEPTH_COMPONENT32F); + p_usable_depth_formats.push_back(GL_DEPTH24_STENCIL8); + p_usable_depth_formats.push_back(GL_DEPTH32F_STENCIL8); +} + +bool OpenXROpenGLExtension::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) { + GLES3::TextureStorage *texture_storage = GLES3::TextureStorage::get_singleton(); + ERR_FAIL_NULL_V(texture_storage, false); + + uint32_t swapchain_length; + XrResult result = xrEnumerateSwapchainImages(p_swapchain, 0, &swapchain_length, nullptr); + if (XR_FAILED(result)) { + print_line("OpenXR: Failed to get swapchaim image count [", openxr_api->get_error_string(result), "]"); + return false; + } + +#ifdef ANDROID_ENABLED + XrSwapchainImageOpenGLESKHR *images = (XrSwapchainImageOpenGLESKHR *)memalloc(sizeof(XrSwapchainImageOpenGLESKHR) * swapchain_length); +#else + XrSwapchainImageOpenGLKHR *images = (XrSwapchainImageOpenGLKHR *)memalloc(sizeof(XrSwapchainImageOpenGLKHR) * swapchain_length); +#endif + ERR_FAIL_NULL_V_MSG(images, false, "OpenXR Couldn't allocate memory for swap chain image"); + + for (uint64_t i = 0; i < swapchain_length; i++) { +#ifdef ANDROID_ENABLED + images[i].type = XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_ES_KHR; +#else + images[i].type = XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_KHR; +#endif + images[i].next = nullptr; + images[i].image = 0; + } + + result = xrEnumerateSwapchainImages(p_swapchain, swapchain_length, &swapchain_length, (XrSwapchainImageBaseHeader *)images); + if (XR_FAILED(result)) { + print_line("OpenXR: Failed to get swapchaim images [", openxr_api->get_error_string(result), "]"); + memfree(images); + return false; + } + + SwapchainGraphicsData *data = memnew(SwapchainGraphicsData); + if (data == nullptr) { + print_line("OpenXR: Failed to allocate memory for swapchain data"); + memfree(images); + return false; + } + *r_swapchain_graphics_data = data; + data->is_multiview = (p_array_size > 1); + + Image::Format format = Image::FORMAT_RGBA8; + + Vector<RID> texture_rids; + + for (uint64_t i = 0; i < swapchain_length; i++) { + RID texture_rid = texture_storage->texture_create_external( + p_array_size == 1 ? GLES3::Texture::TYPE_2D : GLES3::Texture::TYPE_LAYERED, + format, + images[i].image, + p_width, + p_height, + 1, + p_array_size); + + texture_rids.push_back(texture_rid); + } + + data->texture_rids = texture_rids; + + memfree(images); + + return true; +} + +bool OpenXROpenGLExtension::create_projection_fov(const XrFovf p_fov, double p_z_near, double p_z_far, Projection &r_camera_matrix) { + XrMatrix4x4f matrix; + XrMatrix4x4f_CreateProjectionFov(&matrix, GRAPHICS_OPENGL, p_fov, (float)p_z_near, (float)p_z_far); + + for (int j = 0; j < 4; j++) { + for (int i = 0; i < 4; i++) { + r_camera_matrix.columns[j][i] = matrix.m[j * 4 + i]; + } + } + + return true; +} + +RID OpenXROpenGLExtension::get_texture(void *p_swapchain_graphics_data, int p_image_index) { + SwapchainGraphicsData *data = (SwapchainGraphicsData *)p_swapchain_graphics_data; + ERR_FAIL_NULL_V(data, RID()); + + ERR_FAIL_INDEX_V(p_image_index, data->texture_rids.size(), RID()); + return data->texture_rids[p_image_index]; +} + +void OpenXROpenGLExtension::cleanup_swapchain_graphics_data(void **p_swapchain_graphics_data) { + if (*p_swapchain_graphics_data == nullptr) { + return; + } + + GLES3::TextureStorage *texture_storage = GLES3::TextureStorage::get_singleton(); + ERR_FAIL_NULL(texture_storage); + + SwapchainGraphicsData *data = (SwapchainGraphicsData *)*p_swapchain_graphics_data; + + for (int i = 0; i < data->texture_rids.size(); i++) { + texture_storage->texture_free(data->texture_rids[i]); + } + data->texture_rids.clear(); + + memdelete(data); + *p_swapchain_graphics_data = nullptr; +} + +#define ENUM_TO_STRING_CASE(e) \ + case e: { \ + return String(#e); \ + } break; + +String OpenXROpenGLExtension::get_swapchain_format_name(int64_t p_swapchain_format) const { + // These are somewhat different per platform, will need to weed some stuff out... + switch (p_swapchain_format) { +#ifdef WIN32 + // using definitions from GLAD + ENUM_TO_STRING_CASE(GL_R8_SNORM) + ENUM_TO_STRING_CASE(GL_RG8_SNORM) + ENUM_TO_STRING_CASE(GL_RGB8_SNORM) + ENUM_TO_STRING_CASE(GL_RGBA8_SNORM) + ENUM_TO_STRING_CASE(GL_R16_SNORM) + ENUM_TO_STRING_CASE(GL_RG16_SNORM) + ENUM_TO_STRING_CASE(GL_RGB16_SNORM) + ENUM_TO_STRING_CASE(GL_RGBA16_SNORM) + ENUM_TO_STRING_CASE(GL_RGB4) + ENUM_TO_STRING_CASE(GL_RGB5) + ENUM_TO_STRING_CASE(GL_RGB8) + ENUM_TO_STRING_CASE(GL_RGB10) + ENUM_TO_STRING_CASE(GL_RGB12) + ENUM_TO_STRING_CASE(GL_RGB16) + ENUM_TO_STRING_CASE(GL_RGBA2) + ENUM_TO_STRING_CASE(GL_RGBA4) + ENUM_TO_STRING_CASE(GL_RGB5_A1) + ENUM_TO_STRING_CASE(GL_RGBA8) + ENUM_TO_STRING_CASE(GL_RGB10_A2) + ENUM_TO_STRING_CASE(GL_RGBA12) + ENUM_TO_STRING_CASE(GL_RGBA16) + ENUM_TO_STRING_CASE(GL_RGBA32F) + ENUM_TO_STRING_CASE(GL_RGB32F) + ENUM_TO_STRING_CASE(GL_RGBA16F) + ENUM_TO_STRING_CASE(GL_RGB16F) + ENUM_TO_STRING_CASE(GL_RGBA32UI) + ENUM_TO_STRING_CASE(GL_RGB32UI) + ENUM_TO_STRING_CASE(GL_RGBA16UI) + ENUM_TO_STRING_CASE(GL_RGB16UI) + ENUM_TO_STRING_CASE(GL_RGBA8UI) + ENUM_TO_STRING_CASE(GL_RGB8UI) + ENUM_TO_STRING_CASE(GL_RGBA32I) + ENUM_TO_STRING_CASE(GL_RGB32I) + ENUM_TO_STRING_CASE(GL_RGBA16I) + ENUM_TO_STRING_CASE(GL_RGB16I) + ENUM_TO_STRING_CASE(GL_RGBA8I) + ENUM_TO_STRING_CASE(GL_RGB8I) + ENUM_TO_STRING_CASE(GL_RGB10_A2UI) + ENUM_TO_STRING_CASE(GL_SRGB) + ENUM_TO_STRING_CASE(GL_SRGB8) + ENUM_TO_STRING_CASE(GL_SRGB_ALPHA) + ENUM_TO_STRING_CASE(GL_SRGB8_ALPHA8) + ENUM_TO_STRING_CASE(GL_DEPTH_COMPONENT16) + ENUM_TO_STRING_CASE(GL_DEPTH_COMPONENT24) + ENUM_TO_STRING_CASE(GL_DEPTH_COMPONENT32) + ENUM_TO_STRING_CASE(GL_DEPTH24_STENCIL8) + ENUM_TO_STRING_CASE(GL_R11F_G11F_B10F) + ENUM_TO_STRING_CASE(GL_DEPTH_COMPONENT32F) + ENUM_TO_STRING_CASE(GL_DEPTH32F_STENCIL8) + +#elif ANDROID_ENABLED + // using definitions from GLES3/gl3.h + + ENUM_TO_STRING_CASE(GL_RGBA4) + ENUM_TO_STRING_CASE(GL_RGB5_A1) + ENUM_TO_STRING_CASE(GL_RGB565) + ENUM_TO_STRING_CASE(GL_RGB8) + ENUM_TO_STRING_CASE(GL_RGBA8) + ENUM_TO_STRING_CASE(GL_RGB10_A2) + ENUM_TO_STRING_CASE(GL_RGBA32F) + ENUM_TO_STRING_CASE(GL_RGB32F) + ENUM_TO_STRING_CASE(GL_RGBA16F) + ENUM_TO_STRING_CASE(GL_RGB16F) + ENUM_TO_STRING_CASE(GL_R11F_G11F_B10F) + ENUM_TO_STRING_CASE(GL_UNSIGNED_INT_10F_11F_11F_REV) + ENUM_TO_STRING_CASE(GL_RGB9_E5) + ENUM_TO_STRING_CASE(GL_UNSIGNED_INT_5_9_9_9_REV) + ENUM_TO_STRING_CASE(GL_RGBA32UI) + ENUM_TO_STRING_CASE(GL_RGB32UI) + ENUM_TO_STRING_CASE(GL_RGBA16UI) + ENUM_TO_STRING_CASE(GL_RGB16UI) + ENUM_TO_STRING_CASE(GL_RGBA8UI) + ENUM_TO_STRING_CASE(GL_RGB8UI) + ENUM_TO_STRING_CASE(GL_RGBA32I) + ENUM_TO_STRING_CASE(GL_RGB32I) + ENUM_TO_STRING_CASE(GL_RGBA16I) + ENUM_TO_STRING_CASE(GL_RGB16I) + ENUM_TO_STRING_CASE(GL_RGBA8I) + ENUM_TO_STRING_CASE(GL_RGB8I) + ENUM_TO_STRING_CASE(GL_RG) + ENUM_TO_STRING_CASE(GL_RG_INTEGER) + ENUM_TO_STRING_CASE(GL_R8) + ENUM_TO_STRING_CASE(GL_RG8) + ENUM_TO_STRING_CASE(GL_R16F) + ENUM_TO_STRING_CASE(GL_R32F) + ENUM_TO_STRING_CASE(GL_RG16F) + ENUM_TO_STRING_CASE(GL_RG32F) + ENUM_TO_STRING_CASE(GL_R8I) + ENUM_TO_STRING_CASE(GL_R8UI) + ENUM_TO_STRING_CASE(GL_R16I) + ENUM_TO_STRING_CASE(GL_R16UI) + ENUM_TO_STRING_CASE(GL_R32I) + ENUM_TO_STRING_CASE(GL_R32UI) + ENUM_TO_STRING_CASE(GL_RG8I) + ENUM_TO_STRING_CASE(GL_RG8UI) + ENUM_TO_STRING_CASE(GL_RG16I) + ENUM_TO_STRING_CASE(GL_RG16UI) + ENUM_TO_STRING_CASE(GL_RG32I) + ENUM_TO_STRING_CASE(GL_RG32UI) + ENUM_TO_STRING_CASE(GL_R8_SNORM) + ENUM_TO_STRING_CASE(GL_RG8_SNORM) + ENUM_TO_STRING_CASE(GL_RGB8_SNORM) + ENUM_TO_STRING_CASE(GL_RGBA8_SNORM) + ENUM_TO_STRING_CASE(GL_RGB10_A2UI) + ENUM_TO_STRING_CASE(GL_SRGB) + ENUM_TO_STRING_CASE(GL_SRGB8) + ENUM_TO_STRING_CASE(GL_SRGB8_ALPHA8) + ENUM_TO_STRING_CASE(GL_COMPRESSED_R11_EAC) + ENUM_TO_STRING_CASE(GL_COMPRESSED_SIGNED_R11_EAC) + ENUM_TO_STRING_CASE(GL_COMPRESSED_RG11_EAC) + ENUM_TO_STRING_CASE(GL_COMPRESSED_SIGNED_RG11_EAC) + ENUM_TO_STRING_CASE(GL_COMPRESSED_RGB8_ETC2) + ENUM_TO_STRING_CASE(GL_COMPRESSED_SRGB8_ETC2) + ENUM_TO_STRING_CASE(GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2) + ENUM_TO_STRING_CASE(GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2) + ENUM_TO_STRING_CASE(GL_COMPRESSED_RGBA8_ETC2_EAC) + ENUM_TO_STRING_CASE(GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC) + ENUM_TO_STRING_CASE(GL_DEPTH_COMPONENT16) + ENUM_TO_STRING_CASE(GL_DEPTH_COMPONENT24) + ENUM_TO_STRING_CASE(GL_DEPTH24_STENCIL8) + +#else + // using definitions from GL/gl.h + ENUM_TO_STRING_CASE(GL_ALPHA4_EXT) + ENUM_TO_STRING_CASE(GL_ALPHA8_EXT) + ENUM_TO_STRING_CASE(GL_ALPHA12_EXT) + ENUM_TO_STRING_CASE(GL_ALPHA16_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE4_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE8_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE12_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE16_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE4_ALPHA4_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE6_ALPHA2_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE8_ALPHA8_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE12_ALPHA4_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE12_ALPHA12_EXT) + ENUM_TO_STRING_CASE(GL_LUMINANCE16_ALPHA16_EXT) + ENUM_TO_STRING_CASE(GL_INTENSITY_EXT) + ENUM_TO_STRING_CASE(GL_INTENSITY4_EXT) + ENUM_TO_STRING_CASE(GL_INTENSITY8_EXT) + ENUM_TO_STRING_CASE(GL_INTENSITY12_EXT) + ENUM_TO_STRING_CASE(GL_INTENSITY16_EXT) + ENUM_TO_STRING_CASE(GL_RGB2_EXT) + ENUM_TO_STRING_CASE(GL_RGB4_EXT) + ENUM_TO_STRING_CASE(GL_RGB5_EXT) + ENUM_TO_STRING_CASE(GL_RGB8_EXT) + ENUM_TO_STRING_CASE(GL_RGB10_EXT) + ENUM_TO_STRING_CASE(GL_RGB12_EXT) + ENUM_TO_STRING_CASE(GL_RGB16_EXT) + ENUM_TO_STRING_CASE(GL_RGBA2_EXT) + ENUM_TO_STRING_CASE(GL_RGBA4_EXT) + ENUM_TO_STRING_CASE(GL_RGB5_A1_EXT) + ENUM_TO_STRING_CASE(GL_RGBA8_EXT) + ENUM_TO_STRING_CASE(GL_RGB10_A2_EXT) + ENUM_TO_STRING_CASE(GL_RGBA12_EXT) + ENUM_TO_STRING_CASE(GL_RGBA16_EXT) + ENUM_TO_STRING_CASE(GL_SRGB_EXT) + ENUM_TO_STRING_CASE(GL_SRGB8_EXT) + ENUM_TO_STRING_CASE(GL_SRGB_ALPHA_EXT) + ENUM_TO_STRING_CASE(GL_SRGB8_ALPHA8_EXT) +#endif + default: { + return String("Swapchain format 0x") + String::num_int64(p_swapchain_format, 16); + } break; + } +} + +#endif // GLES3_ENABLED diff --git a/modules/openxr/extensions/openxr_opengl_extension.h b/modules/openxr/extensions/openxr_opengl_extension.h new file mode 100644 index 0000000000..b666653c8e --- /dev/null +++ b/modules/openxr/extensions/openxr_opengl_extension.h @@ -0,0 +1,120 @@ +/*************************************************************************/ +/* 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 diff --git a/modules/openxr/openxr_api.cpp b/modules/openxr/openxr_api.cpp index 8b189cf027..88111afede 100644 --- a/modules/openxr/openxr_api.cpp +++ b/modules/openxr/openxr_api.cpp @@ -45,10 +45,40 @@ #include "extensions/openxr_android_extension.h" #endif +// We need to have all the graphics API defines before the Vulkan or OpenGL +// extensions are included, otherwise we'll only get one graphics API. +#ifdef VULKAN_ENABLED +#define XR_USE_GRAPHICS_API_VULKAN +#endif +#ifdef GLES3_ENABLED +#ifdef ANDROID +#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 // ANDROID +#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 // X11_ENABLED +#endif // GLES_ENABLED + #ifdef VULKAN_ENABLED #include "extensions/openxr_vulkan_extension.h" #endif +#ifdef GLES3_ENABLED +#include "extensions/openxr_opengl_extension.h" +#endif + #include "extensions/openxr_composition_layer_depth_extension.h" #include "extensions/openxr_fb_display_refresh_rate_extension.h" #include "extensions/openxr_fb_passthrough_extension_wrapper.h" @@ -1142,9 +1172,8 @@ bool OpenXRAPI::initialize(const String &p_rendering_driver) { #endif } else if (p_rendering_driver == "opengl3") { #ifdef GLES3_ENABLED - // graphics_extension = memnew(OpenXROpenGLExtension(this)); - // register_extension_wrapper(graphics_extension); - ERR_FAIL_V_MSG(false, "OpenXR: OpenGL is not supported at this time."); + graphics_extension = memnew(OpenXROpenGLExtension(this)); + register_extension_wrapper(graphics_extension); #else // shouldn't be possible... ERR_FAIL_V(false); |