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Move some openxr stuff into the jni folder

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This commit is contained in:
Simon 2023-02-04 10:30:48 +00:00
parent fa220af9f7
commit 373ffaa413
10 changed files with 9564 additions and 4 deletions
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3
Projects/Android/jni/JKVR/TBXR_Common.h
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@ -11,7 +11,7 @@
#include <jni.h>
#include <openxr/openxr.h>
#include <openxr/openxr_platform.h>
#include <openxr/openxr_oculus_helpers.h>
#include <openxr_helpers.h>
#include <android/native_window_jni.h>
#include <android/log.h>
@ -31,6 +31,7 @@
#define ALOGV(...)
#endif
enum { ovrMaxLayerCount = 1 };
enum { ovrMaxNumEyes = 2 };

5
Projects/Android/jni/OpenJK/Android.mk
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@ -10,9 +10,8 @@ JK3_BASE_LDLIBS =
JK3_BASE_LDLIBS += -Wl
JK3_BASE_C_INCLUDES := $(OPENJK_PATH)/lib $(JK3_CODE_PATH)/client $(JK3_CODE_PATH)/server $(JK3_CODE_PATH)/libs/freetype2/include $(JK3_CODE_PATH)/common $(JK3_CODE_PATH)/gl
JK3_BASE_C_INCLUDES += $(LOCAL_PATH)/../../../../../../OpenXR/include
JK3_BASE_C_INCLUDES += $(LOCAL_PATH)/../../../../../../3rdParty/khronos/openxr/OpenXR-SDK/include
JK3_BASE_C_INCLUDES += $(LOCAL_PATH)/../../../../../../3rdParty/khronos/openxr/OpenXR-SDK/src/common
JK3_BASE_C_INCLUDES += ${TOP_DIR}/OpenXR-SDK/include
JK3_BASE_C_INCLUDES += ${TOP_DIR}/OpenXR-SDK/src/common
JK3_BASE_C_INCLUDES += $(JK3_CODE_PATH)/ $(OPENJK_PATH)/code/ $(OPENJK_PATH)/shared/ $(JK3_CODE_PATH)/ui $(OPENJK_PATH)/lib/gsl-lite/include

20
Projects/Android/jni/OpenXR-SDK/include/CMakeLists.txt Normal file
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@ -0,0 +1,20 @@
# Copyright (c) 2017 The Khronos Group Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Author:
#
add_subdirectory(openxr)

101
Projects/Android/jni/OpenXR-SDK/include/openxr/CMakeLists.txt Normal file
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@ -0,0 +1,101 @@
# Copyright (c) 2017-2022, The Khronos Group Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Author:
#
# Copy the openxr_platform_defines.h file and place it in the binary (build) directory.
configure_file(openxr_platform_defines.h ${CMAKE_CURRENT_BINARY_DIR}/openxr_platform_defines.h COPYONLY)
# Generate OpenXR header files.
set(HEADERS
openxr.h
openxr_platform.h
openxr_reflection.h)
set(HAVE_PREGENERATED TRUE)
set(SOURCE_HEADERS)
foreach(output ${HEADERS})
list(APPEND SOURCE_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/${output})
if(NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${output})
set(HAVE_PREGENERATED FALSE)
endif()
endforeach()
set(XR_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/../..)
if(HAVE_PREGENERATED AND NOT BUILD_FORCE_GENERATION)
add_custom_target(generate_openxr_header
COMMENT "Using found pre-generated OpenXR headers.")
set(INSTALL_HEADERS
${CMAKE_CURRENT_SOURCE_DIR}/openxr_platform_defines.h
${SOURCE_HEADERS})
else()
set(GENERATED_HEADERS)
set(OUTPUT_STAMPS)
# Copy the openxr_platform_defines.h file and place it in the binary (build) directory.
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/openxr_platform_defines.h
${CMAKE_CURRENT_BINARY_DIR}/openxr_platform_defines.h
COPYONLY)
# Generate the header files and place it in the binary (build) directory.
foreach(output ${HEADERS})
add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${output}
COMMAND ${PYTHON_EXECUTABLE} ${XR_ROOT}/specification/scripts/genxr.py
-registry ${XR_ROOT}/specification/registry/xr.xml
-o ${CMAKE_CURRENT_BINARY_DIR} ${output}
DEPENDS
${XR_ROOT}/specification/scripts/genxr.py
${XR_ROOT}/specification/scripts/cgenerator.py
${XR_ROOT}/specification/scripts/creflectiongenerator.py
${XR_ROOT}/specification/scripts/generator.py
${XR_ROOT}/specification/scripts/reg.py
${XR_ROOT}/specification/registry/xr.xml
COMMENT "Generating ${CMAKE_CURRENT_BINARY_DIR}/${output}"
)
list(APPEND GENERATED_HEADERS "${CMAKE_CURRENT_BINARY_DIR}/${output}")
endforeach()
set_source_files_properties(
${GENERATED_HEADERS}
PROPERTIES GENERATED TRUE
)
set(INSTALL_HEADERS
${CMAKE_CURRENT_BINARY_DIR}/openxr_platform_defines.h
${GENERATED_HEADERS})
# Define generate_openxr_header target to generate the OpenXR header files.
# Other targets that need the OpenXR headers should use generate_openxr_header as a dependency.
add_custom_target(generate_openxr_header
SOURCES ${XR_ROOT}/specification/registry/xr.xml
DEPENDS
${GENERATED_HEADERS}
${OUTPUT_STAMPS}
)
endif()
set_target_properties(generate_openxr_header PROPERTIES FOLDER ${CODEGEN_FOLDER})
if(NOT CMAKE_INSTALL_INCDIR)
set(CMAKE_INSTALL_INCDIR include)
endif()
INSTALL(FILES ${INSTALL_HEADERS}
DESTINATION ${CMAKE_INSTALL_INCDIR}/openxr
COMPONENT Headers
)

4581
Projects/Android/jni/OpenXR-SDK/include/openxr/openxr.h Normal file
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690
Projects/Android/jni/OpenXR-SDK/include/openxr/openxr_platform.h Normal file
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@ -0,0 +1,690 @@
#ifndef OPENXR_PLATFORM_H_
#define OPENXR_PLATFORM_H_ 1
/*
** Copyright 2017-2022 The Khronos Group Inc.
**
** SPDX-License-Identifier: Apache-2.0 OR MIT
*/
/*
** This header is generated from the Khronos OpenXR XML API Registry.
**
*/
#include "openxr.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifdef XR_USE_PLATFORM_ANDROID
#define XR_KHR_android_thread_settings 1
#define XR_KHR_android_thread_settings_SPEC_VERSION 5
#define XR_KHR_ANDROID_THREAD_SETTINGS_EXTENSION_NAME "XR_KHR_android_thread_settings"
typedef enum XrAndroidThreadTypeKHR {
XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR = 1,
XR_ANDROID_THREAD_TYPE_APPLICATION_WORKER_KHR = 2,
XR_ANDROID_THREAD_TYPE_RENDERER_MAIN_KHR = 3,
XR_ANDROID_THREAD_TYPE_RENDERER_WORKER_KHR = 4,
XR_ANDROID_THREAD_TYPE_MAX_ENUM_KHR = 0x7FFFFFFF
} XrAndroidThreadTypeKHR;
typedef XrResult (XRAPI_PTR *PFN_xrSetAndroidApplicationThreadKHR)(XrSession session, XrAndroidThreadTypeKHR threadType, uint32_t threadId);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrSetAndroidApplicationThreadKHR(
XrSession session,
XrAndroidThreadTypeKHR threadType,
uint32_t threadId);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_PLATFORM_ANDROID */
#ifdef XR_USE_PLATFORM_ANDROID
#define XR_KHR_android_surface_swapchain 1
#define XR_KHR_android_surface_swapchain_SPEC_VERSION 4
#define XR_KHR_ANDROID_SURFACE_SWAPCHAIN_EXTENSION_NAME "XR_KHR_android_surface_swapchain"
typedef XrResult (XRAPI_PTR *PFN_xrCreateSwapchainAndroidSurfaceKHR)(XrSession session, const XrSwapchainCreateInfo* info, XrSwapchain* swapchain, jobject* surface);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrCreateSwapchainAndroidSurfaceKHR(
XrSession session,
const XrSwapchainCreateInfo* info,
XrSwapchain* swapchain,
jobject* surface);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_PLATFORM_ANDROID */
#ifdef XR_USE_PLATFORM_ANDROID
#define XR_KHR_android_create_instance 1
#define XR_KHR_android_create_instance_SPEC_VERSION 3
#define XR_KHR_ANDROID_CREATE_INSTANCE_EXTENSION_NAME "XR_KHR_android_create_instance"
// XrInstanceCreateInfoAndroidKHR extends XrInstanceCreateInfo
typedef struct XrInstanceCreateInfoAndroidKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
void* XR_MAY_ALIAS applicationVM;
void* XR_MAY_ALIAS applicationActivity;
} XrInstanceCreateInfoAndroidKHR;
#endif /* XR_USE_PLATFORM_ANDROID */
#ifdef XR_USE_GRAPHICS_API_VULKAN
#define XR_KHR_vulkan_swapchain_format_list 1
#define XR_KHR_vulkan_swapchain_format_list_SPEC_VERSION 4
#define XR_KHR_VULKAN_SWAPCHAIN_FORMAT_LIST_EXTENSION_NAME "XR_KHR_vulkan_swapchain_format_list"
typedef struct XrVulkanSwapchainFormatListCreateInfoKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
uint32_t viewFormatCount;
const VkFormat* viewFormats;
} XrVulkanSwapchainFormatListCreateInfoKHR;
#endif /* XR_USE_GRAPHICS_API_VULKAN */
#ifdef XR_USE_GRAPHICS_API_OPENGL
#define XR_KHR_opengl_enable 1
#define XR_KHR_opengl_enable_SPEC_VERSION 10
#define XR_KHR_OPENGL_ENABLE_EXTENSION_NAME "XR_KHR_opengl_enable"
#ifdef XR_USE_PLATFORM_WIN32
// XrGraphicsBindingOpenGLWin32KHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingOpenGLWin32KHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
HDC hDC;
HGLRC hGLRC;
} XrGraphicsBindingOpenGLWin32KHR;
#endif // XR_USE_PLATFORM_WIN32
#ifdef XR_USE_PLATFORM_XLIB
// XrGraphicsBindingOpenGLXlibKHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingOpenGLXlibKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
Display* xDisplay;
uint32_t visualid;
GLXFBConfig glxFBConfig;
GLXDrawable glxDrawable;
GLXContext glxContext;
} XrGraphicsBindingOpenGLXlibKHR;
#endif // XR_USE_PLATFORM_XLIB
#ifdef XR_USE_PLATFORM_XCB
// XrGraphicsBindingOpenGLXcbKHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingOpenGLXcbKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
xcb_connection_t* connection;
uint32_t screenNumber;
xcb_glx_fbconfig_t fbconfigid;
xcb_visualid_t visualid;
xcb_glx_drawable_t glxDrawable;
xcb_glx_context_t glxContext;
} XrGraphicsBindingOpenGLXcbKHR;
#endif // XR_USE_PLATFORM_XCB
#ifdef XR_USE_PLATFORM_WAYLAND
// XrGraphicsBindingOpenGLWaylandKHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingOpenGLWaylandKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
struct wl_display* display;
} XrGraphicsBindingOpenGLWaylandKHR;
#endif // XR_USE_PLATFORM_WAYLAND
typedef struct XrSwapchainImageOpenGLKHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
uint32_t image;
} XrSwapchainImageOpenGLKHR;
typedef struct XrGraphicsRequirementsOpenGLKHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
XrVersion minApiVersionSupported;
XrVersion maxApiVersionSupported;
} XrGraphicsRequirementsOpenGLKHR;
typedef XrResult (XRAPI_PTR *PFN_xrGetOpenGLGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsOpenGLKHR* graphicsRequirements);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrGetOpenGLGraphicsRequirementsKHR(
XrInstance instance,
XrSystemId systemId,
XrGraphicsRequirementsOpenGLKHR* graphicsRequirements);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_GRAPHICS_API_OPENGL */
#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
#define XR_KHR_opengl_es_enable 1
#define XR_KHR_opengl_es_enable_SPEC_VERSION 8
#define XR_KHR_OPENGL_ES_ENABLE_EXTENSION_NAME "XR_KHR_opengl_es_enable"
#ifdef XR_USE_PLATFORM_ANDROID
// XrGraphicsBindingOpenGLESAndroidKHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingOpenGLESAndroidKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
EGLDisplay display;
EGLConfig config;
EGLContext context;
} XrGraphicsBindingOpenGLESAndroidKHR;
#endif // XR_USE_PLATFORM_ANDROID
typedef struct XrSwapchainImageOpenGLESKHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
uint32_t image;
} XrSwapchainImageOpenGLESKHR;
typedef struct XrGraphicsRequirementsOpenGLESKHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
XrVersion minApiVersionSupported;
XrVersion maxApiVersionSupported;
} XrGraphicsRequirementsOpenGLESKHR;
typedef XrResult (XRAPI_PTR *PFN_xrGetOpenGLESGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsOpenGLESKHR* graphicsRequirements);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrGetOpenGLESGraphicsRequirementsKHR(
XrInstance instance,
XrSystemId systemId,
XrGraphicsRequirementsOpenGLESKHR* graphicsRequirements);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_GRAPHICS_API_OPENGL_ES */
#ifdef XR_USE_GRAPHICS_API_VULKAN
#define XR_KHR_vulkan_enable 1
#define XR_KHR_vulkan_enable_SPEC_VERSION 8
#define XR_KHR_VULKAN_ENABLE_EXTENSION_NAME "XR_KHR_vulkan_enable"
// XrGraphicsBindingVulkanKHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingVulkanKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
VkInstance instance;
VkPhysicalDevice physicalDevice;
VkDevice device;
uint32_t queueFamilyIndex;
uint32_t queueIndex;
} XrGraphicsBindingVulkanKHR;
typedef struct XrSwapchainImageVulkanKHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
VkImage image;
} XrSwapchainImageVulkanKHR;
typedef struct XrGraphicsRequirementsVulkanKHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
XrVersion minApiVersionSupported;
XrVersion maxApiVersionSupported;
} XrGraphicsRequirementsVulkanKHR;
typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanInstanceExtensionsKHR)(XrInstance instance, XrSystemId systemId, uint32_t bufferCapacityInput, uint32_t* bufferCountOutput, char* buffer);
typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanDeviceExtensionsKHR)(XrInstance instance, XrSystemId systemId, uint32_t bufferCapacityInput, uint32_t* bufferCountOutput, char* buffer);
typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsDeviceKHR)(XrInstance instance, XrSystemId systemId, VkInstance vkInstance, VkPhysicalDevice* vkPhysicalDevice);
typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanInstanceExtensionsKHR(
XrInstance instance,
XrSystemId systemId,
uint32_t bufferCapacityInput,
uint32_t* bufferCountOutput,
char* buffer);
XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanDeviceExtensionsKHR(
XrInstance instance,
XrSystemId systemId,
uint32_t bufferCapacityInput,
uint32_t* bufferCountOutput,
char* buffer);
XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsDeviceKHR(
XrInstance instance,
XrSystemId systemId,
VkInstance vkInstance,
VkPhysicalDevice* vkPhysicalDevice);
XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsRequirementsKHR(
XrInstance instance,
XrSystemId systemId,
XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_GRAPHICS_API_VULKAN */
#ifdef XR_USE_GRAPHICS_API_D3D11
#define XR_KHR_D3D11_enable 1
#define XR_KHR_D3D11_enable_SPEC_VERSION 9
#define XR_KHR_D3D11_ENABLE_EXTENSION_NAME "XR_KHR_D3D11_enable"
// XrGraphicsBindingD3D11KHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingD3D11KHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
ID3D11Device* device;
} XrGraphicsBindingD3D11KHR;
typedef struct XrSwapchainImageD3D11KHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
ID3D11Texture2D* texture;
} XrSwapchainImageD3D11KHR;
typedef struct XrGraphicsRequirementsD3D11KHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
LUID adapterLuid;
D3D_FEATURE_LEVEL minFeatureLevel;
} XrGraphicsRequirementsD3D11KHR;
typedef XrResult (XRAPI_PTR *PFN_xrGetD3D11GraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsD3D11KHR* graphicsRequirements);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrGetD3D11GraphicsRequirementsKHR(
XrInstance instance,
XrSystemId systemId,
XrGraphicsRequirementsD3D11KHR* graphicsRequirements);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_GRAPHICS_API_D3D11 */
#ifdef XR_USE_GRAPHICS_API_D3D12
#define XR_KHR_D3D12_enable 1
#define XR_KHR_D3D12_enable_SPEC_VERSION 9
#define XR_KHR_D3D12_ENABLE_EXTENSION_NAME "XR_KHR_D3D12_enable"
// XrGraphicsBindingD3D12KHR extends XrSessionCreateInfo
typedef struct XrGraphicsBindingD3D12KHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
ID3D12Device* device;
ID3D12CommandQueue* queue;
} XrGraphicsBindingD3D12KHR;
typedef struct XrSwapchainImageD3D12KHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
ID3D12Resource* texture;
} XrSwapchainImageD3D12KHR;
typedef struct XrGraphicsRequirementsD3D12KHR {
XrStructureType type;
void* XR_MAY_ALIAS next;
LUID adapterLuid;
D3D_FEATURE_LEVEL minFeatureLevel;
} XrGraphicsRequirementsD3D12KHR;
typedef XrResult (XRAPI_PTR *PFN_xrGetD3D12GraphicsRequirementsKHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsD3D12KHR* graphicsRequirements);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrGetD3D12GraphicsRequirementsKHR(
XrInstance instance,
XrSystemId systemId,
XrGraphicsRequirementsD3D12KHR* graphicsRequirements);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_GRAPHICS_API_D3D12 */
#ifdef XR_USE_PLATFORM_WIN32
#define XR_KHR_win32_convert_performance_counter_time 1
#define XR_KHR_win32_convert_performance_counter_time_SPEC_VERSION 1
#define XR_KHR_WIN32_CONVERT_PERFORMANCE_COUNTER_TIME_EXTENSION_NAME "XR_KHR_win32_convert_performance_counter_time"
typedef XrResult (XRAPI_PTR *PFN_xrConvertWin32PerformanceCounterToTimeKHR)(XrInstance instance, const LARGE_INTEGER* performanceCounter, XrTime* time);
typedef XrResult (XRAPI_PTR *PFN_xrConvertTimeToWin32PerformanceCounterKHR)(XrInstance instance, XrTime time, LARGE_INTEGER* performanceCounter);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrConvertWin32PerformanceCounterToTimeKHR(
XrInstance instance,
const LARGE_INTEGER* performanceCounter,
XrTime* time);
XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimeToWin32PerformanceCounterKHR(
XrInstance instance,
XrTime time,
LARGE_INTEGER* performanceCounter);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_PLATFORM_WIN32 */
#ifdef XR_USE_TIMESPEC
#define XR_KHR_convert_timespec_time 1
#define XR_KHR_convert_timespec_time_SPEC_VERSION 1
#define XR_KHR_CONVERT_TIMESPEC_TIME_EXTENSION_NAME "XR_KHR_convert_timespec_time"
typedef XrResult (XRAPI_PTR *PFN_xrConvertTimespecTimeToTimeKHR)(XrInstance instance, const struct timespec* timespecTime, XrTime* time);
typedef XrResult (XRAPI_PTR *PFN_xrConvertTimeToTimespecTimeKHR)(XrInstance instance, XrTime time, struct timespec* timespecTime);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimespecTimeToTimeKHR(
XrInstance instance,
const struct timespec* timespecTime,
XrTime* time);
XRAPI_ATTR XrResult XRAPI_CALL xrConvertTimeToTimespecTimeKHR(
XrInstance instance,
XrTime time,
struct timespec* timespecTime);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_TIMESPEC */
#ifdef XR_USE_PLATFORM_ANDROID
#define XR_KHR_loader_init_android 1
#define XR_KHR_loader_init_android_SPEC_VERSION 1
#define XR_KHR_LOADER_INIT_ANDROID_EXTENSION_NAME "XR_KHR_loader_init_android"
typedef struct XrLoaderInitInfoAndroidKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
void* XR_MAY_ALIAS applicationVM;
void* XR_MAY_ALIAS applicationContext;
} XrLoaderInitInfoAndroidKHR;
#endif /* XR_USE_PLATFORM_ANDROID */
#ifdef XR_USE_GRAPHICS_API_VULKAN
#define XR_KHR_vulkan_enable2 1
#define XR_KHR_vulkan_enable2_SPEC_VERSION 2
#define XR_KHR_VULKAN_ENABLE2_EXTENSION_NAME "XR_KHR_vulkan_enable2"
typedef XrFlags64 XrVulkanInstanceCreateFlagsKHR;
// Flag bits for XrVulkanInstanceCreateFlagsKHR
typedef XrFlags64 XrVulkanDeviceCreateFlagsKHR;
// Flag bits for XrVulkanDeviceCreateFlagsKHR
typedef struct XrVulkanInstanceCreateInfoKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
XrSystemId systemId;
XrVulkanInstanceCreateFlagsKHR createFlags;
PFN_vkGetInstanceProcAddr pfnGetInstanceProcAddr;
const VkInstanceCreateInfo* vulkanCreateInfo;
const VkAllocationCallbacks* vulkanAllocator;
} XrVulkanInstanceCreateInfoKHR;
typedef struct XrVulkanDeviceCreateInfoKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
XrSystemId systemId;
XrVulkanDeviceCreateFlagsKHR createFlags;
PFN_vkGetInstanceProcAddr pfnGetInstanceProcAddr;
VkPhysicalDevice vulkanPhysicalDevice;
const VkDeviceCreateInfo* vulkanCreateInfo;
const VkAllocationCallbacks* vulkanAllocator;
} XrVulkanDeviceCreateInfoKHR;
typedef XrGraphicsBindingVulkanKHR XrGraphicsBindingVulkan2KHR;
typedef struct XrVulkanGraphicsDeviceGetInfoKHR {
XrStructureType type;
const void* XR_MAY_ALIAS next;
XrSystemId systemId;
VkInstance vulkanInstance;
} XrVulkanGraphicsDeviceGetInfoKHR;
typedef XrSwapchainImageVulkanKHR XrSwapchainImageVulkan2KHR;
typedef XrGraphicsRequirementsVulkanKHR XrGraphicsRequirementsVulkan2KHR;
typedef XrResult (XRAPI_PTR *PFN_xrCreateVulkanInstanceKHR)(XrInstance instance, const XrVulkanInstanceCreateInfoKHR* createInfo, VkInstance* vulkanInstance, VkResult* vulkanResult);
typedef XrResult (XRAPI_PTR *PFN_xrCreateVulkanDeviceKHR)(XrInstance instance, const XrVulkanDeviceCreateInfoKHR* createInfo, VkDevice* vulkanDevice, VkResult* vulkanResult);
typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsDevice2KHR)(XrInstance instance, const XrVulkanGraphicsDeviceGetInfoKHR* getInfo, VkPhysicalDevice* vulkanPhysicalDevice);
typedef XrResult (XRAPI_PTR *PFN_xrGetVulkanGraphicsRequirements2KHR)(XrInstance instance, XrSystemId systemId, XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrCreateVulkanInstanceKHR(
XrInstance instance,
const XrVulkanInstanceCreateInfoKHR* createInfo,
VkInstance* vulkanInstance,
VkResult* vulkanResult);
XRAPI_ATTR XrResult XRAPI_CALL xrCreateVulkanDeviceKHR(
XrInstance instance,
const XrVulkanDeviceCreateInfoKHR* createInfo,
VkDevice* vulkanDevice,
VkResult* vulkanResult);
XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsDevice2KHR(
XrInstance instance,
const XrVulkanGraphicsDeviceGetInfoKHR* getInfo,
VkPhysicalDevice* vulkanPhysicalDevice);
XRAPI_ATTR XrResult XRAPI_CALL xrGetVulkanGraphicsRequirements2KHR(
XrInstance instance,
XrSystemId systemId,
XrGraphicsRequirementsVulkanKHR* graphicsRequirements);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_GRAPHICS_API_VULKAN */
#ifdef XR_USE_PLATFORM_EGL
#define XR_MNDX_egl_enable 1
#define XR_MNDX_egl_enable_SPEC_VERSION 1
#define XR_MNDX_EGL_ENABLE_EXTENSION_NAME "XR_MNDX_egl_enable"
// XrGraphicsBindingEGLMNDX extends XrSessionCreateInfo
typedef struct XrGraphicsBindingEGLMNDX {
XrStructureType type;
const void* XR_MAY_ALIAS next;
PFNEGLGETPROCADDRESSPROC getProcAddress;
EGLDisplay display;
EGLConfig config;
EGLContext context;
} XrGraphicsBindingEGLMNDX;
#endif /* XR_USE_PLATFORM_EGL */
#ifdef XR_USE_PLATFORM_WIN32
#define XR_MSFT_perception_anchor_interop 1
#define XR_MSFT_perception_anchor_interop_SPEC_VERSION 1
#define XR_MSFT_PERCEPTION_ANCHOR_INTEROP_EXTENSION_NAME "XR_MSFT_perception_anchor_interop"
typedef XrResult (XRAPI_PTR *PFN_xrCreateSpatialAnchorFromPerceptionAnchorMSFT)(XrSession session, IUnknown* perceptionAnchor, XrSpatialAnchorMSFT* anchor);
typedef XrResult (XRAPI_PTR *PFN_xrTryGetPerceptionAnchorFromSpatialAnchorMSFT)(XrSession session, XrSpatialAnchorMSFT anchor, IUnknown** perceptionAnchor);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrCreateSpatialAnchorFromPerceptionAnchorMSFT(
XrSession session,
IUnknown* perceptionAnchor,
XrSpatialAnchorMSFT* anchor);
XRAPI_ATTR XrResult XRAPI_CALL xrTryGetPerceptionAnchorFromSpatialAnchorMSFT(
XrSession session,
XrSpatialAnchorMSFT anchor,
IUnknown** perceptionAnchor);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_PLATFORM_WIN32 */
#ifdef XR_USE_PLATFORM_WIN32
#define XR_MSFT_holographic_window_attachment 1
#define XR_MSFT_holographic_window_attachment_SPEC_VERSION 1
#define XR_MSFT_HOLOGRAPHIC_WINDOW_ATTACHMENT_EXTENSION_NAME "XR_MSFT_holographic_window_attachment"
#ifdef XR_USE_PLATFORM_WIN32
// XrHolographicWindowAttachmentMSFT extends XrSessionCreateInfo
typedef struct XrHolographicWindowAttachmentMSFT {
XrStructureType type;
const void* XR_MAY_ALIAS next;
IUnknown* holographicSpace;
IUnknown* coreWindow;
} XrHolographicWindowAttachmentMSFT;
#endif // XR_USE_PLATFORM_WIN32
#endif /* XR_USE_PLATFORM_WIN32 */
#ifdef XR_USE_PLATFORM_ANDROID
#define XR_FB_android_surface_swapchain_create 1
#define XR_FB_android_surface_swapchain_create_SPEC_VERSION 1
#define XR_FB_ANDROID_SURFACE_SWAPCHAIN_CREATE_EXTENSION_NAME "XR_FB_android_surface_swapchain_create"
typedef XrFlags64 XrAndroidSurfaceSwapchainFlagsFB;
// Flag bits for XrAndroidSurfaceSwapchainFlagsFB
static const XrAndroidSurfaceSwapchainFlagsFB XR_ANDROID_SURFACE_SWAPCHAIN_SYNCHRONOUS_BIT_FB = 0x00000001;
static const XrAndroidSurfaceSwapchainFlagsFB XR_ANDROID_SURFACE_SWAPCHAIN_USE_TIMESTAMPS_BIT_FB = 0x00000002;
#ifdef XR_USE_PLATFORM_ANDROID
// XrAndroidSurfaceSwapchainCreateInfoFB extends XrSwapchainCreateInfo
typedef struct XrAndroidSurfaceSwapchainCreateInfoFB {
XrStructureType type;
const void* XR_MAY_ALIAS next;
XrAndroidSurfaceSwapchainFlagsFB createFlags;
} XrAndroidSurfaceSwapchainCreateInfoFB;
#endif // XR_USE_PLATFORM_ANDROID
#endif /* XR_USE_PLATFORM_ANDROID */
#ifdef XR_USE_PLATFORM_WIN32
#define XR_OCULUS_audio_device_guid 1
#define XR_OCULUS_audio_device_guid_SPEC_VERSION 1
#define XR_OCULUS_AUDIO_DEVICE_GUID_EXTENSION_NAME "XR_OCULUS_audio_device_guid"
#define XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS 128
typedef XrResult (XRAPI_PTR *PFN_xrGetAudioOutputDeviceGuidOculus)(XrInstance instance, wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
typedef XrResult (XRAPI_PTR *PFN_xrGetAudioInputDeviceGuidOculus)(XrInstance instance, wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
#ifndef XR_NO_PROTOTYPES
#ifdef XR_EXTENSION_PROTOTYPES
XRAPI_ATTR XrResult XRAPI_CALL xrGetAudioOutputDeviceGuidOculus(
XrInstance instance,
wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
XRAPI_ATTR XrResult XRAPI_CALL xrGetAudioInputDeviceGuidOculus(
XrInstance instance,
wchar_t buffer[XR_MAX_AUDIO_DEVICE_STR_SIZE_OCULUS]);
#endif /* XR_EXTENSION_PROTOTYPES */
#endif /* !XR_NO_PROTOTYPES */
#endif /* XR_USE_PLATFORM_WIN32 */
#ifdef XR_USE_GRAPHICS_API_VULKAN
#define XR_FB_foveation_vulkan 1
#define XR_FB_foveation_vulkan_SPEC_VERSION 1
#define XR_FB_FOVEATION_VULKAN_EXTENSION_NAME "XR_FB_foveation_vulkan"
// XrSwapchainImageFoveationVulkanFB extends XrSwapchainImageVulkanKHR
typedef struct XrSwapchainImageFoveationVulkanFB {
XrStructureType type;
void* XR_MAY_ALIAS next;
VkImage image;
uint32_t width;
uint32_t height;
} XrSwapchainImageFoveationVulkanFB;
#endif /* XR_USE_GRAPHICS_API_VULKAN */
#ifdef XR_USE_PLATFORM_ANDROID
#define XR_FB_swapchain_update_state_android_surface 1
#define XR_FB_swapchain_update_state_android_surface_SPEC_VERSION 1
#define XR_FB_SWAPCHAIN_UPDATE_STATE_ANDROID_SURFACE_EXTENSION_NAME "XR_FB_swapchain_update_state_android_surface"
#ifdef XR_USE_PLATFORM_ANDROID
typedef struct XrSwapchainStateAndroidSurfaceDimensionsFB {
XrStructureType type;
void* XR_MAY_ALIAS next;
uint32_t width;
uint32_t height;
} XrSwapchainStateAndroidSurfaceDimensionsFB;
#endif // XR_USE_PLATFORM_ANDROID
#endif /* XR_USE_PLATFORM_ANDROID */
#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
#define XR_FB_swapchain_update_state_opengl_es 1
#define XR_FB_swapchain_update_state_opengl_es_SPEC_VERSION 1
#define XR_FB_SWAPCHAIN_UPDATE_STATE_OPENGL_ES_EXTENSION_NAME "XR_FB_swapchain_update_state_opengl_es"
#ifdef XR_USE_GRAPHICS_API_OPENGL_ES
typedef struct XrSwapchainStateSamplerOpenGLESFB {
XrStructureType type;
void* XR_MAY_ALIAS next;
EGLenum minFilter;
EGLenum magFilter;
EGLenum wrapModeS;
EGLenum wrapModeT;
EGLenum swizzleRed;
EGLenum swizzleGreen;
EGLenum swizzleBlue;
EGLenum swizzleAlpha;
float maxAnisotropy;
XrColor4f borderColor;
} XrSwapchainStateSamplerOpenGLESFB;
#endif // XR_USE_GRAPHICS_API_OPENGL_ES
#endif /* XR_USE_GRAPHICS_API_OPENGL_ES */
#ifdef XR_USE_GRAPHICS_API_VULKAN
#define XR_FB_swapchain_update_state_vulkan 1
#define XR_FB_swapchain_update_state_vulkan_SPEC_VERSION 1
#define XR_FB_SWAPCHAIN_UPDATE_STATE_VULKAN_EXTENSION_NAME "XR_FB_swapchain_update_state_vulkan"
#ifdef XR_USE_GRAPHICS_API_VULKAN
typedef struct XrSwapchainStateSamplerVulkanFB {
XrStructureType type;
void* XR_MAY_ALIAS next;
VkFilter minFilter;
VkFilter magFilter;
VkSamplerMipmapMode mipmapMode;
VkSamplerAddressMode wrapModeS;
VkSamplerAddressMode wrapModeT;
VkComponentSwizzle swizzleRed;
VkComponentSwizzle swizzleGreen;
VkComponentSwizzle swizzleBlue;
VkComponentSwizzle swizzleAlpha;
float maxAnisotropy;
XrColor4f borderColor;
} XrSwapchainStateSamplerVulkanFB;
#endif // XR_USE_GRAPHICS_API_VULKAN
#endif /* XR_USE_GRAPHICS_API_VULKAN */
#ifdef XR_USE_GRAPHICS_API_VULKAN
#define XR_META_vulkan_swapchain_create_info 1
#define XR_META_vulkan_swapchain_create_info_SPEC_VERSION 1
#define XR_META_VULKAN_SWAPCHAIN_CREATE_INFO_EXTENSION_NAME "XR_META_vulkan_swapchain_create_info"
// XrVulkanSwapchainCreateInfoMETA extends XrSwapchainCreateInfo
typedef struct XrVulkanSwapchainCreateInfoMETA {
XrStructureType type;
const void* XR_MAY_ALIAS next;
VkImageCreateFlags additionalCreateFlags;
VkImageUsageFlags additionalUsageFlags;
} XrVulkanSwapchainCreateInfoMETA;
#endif /* XR_USE_GRAPHICS_API_VULKAN */
#ifdef __cplusplus
}
#endif
#endif

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/*
** Copyright (c) 2017-2022, The Khronos Group Inc.
**
** SPDX-License-Identifier: Apache-2.0 OR MIT
*/
#ifndef OPENXR_PLATFORM_DEFINES_H_
#define OPENXR_PLATFORM_DEFINES_H_ 1
#ifdef __cplusplus
extern "C" {
#endif
/* Platform-specific calling convention macros.
*
* Platforms should define these so that OpenXR clients call OpenXR functions
* with the same calling conventions that the OpenXR implementation expects.
*
* XRAPI_ATTR - Placed before the return type in function declarations.
* Useful for C++11 and GCC/Clang-style function attribute syntax.
* XRAPI_CALL - Placed after the return type in function declarations.
* Useful for MSVC-style calling convention syntax.
* XRAPI_PTR - Placed between the '(' and '*' in function pointer types.
*
* Function declaration: XRAPI_ATTR void XRAPI_CALL xrFunction(void);
* Function pointer type: typedef void (XRAPI_PTR *PFN_xrFunction)(void);
*/
#if defined(_WIN32)
#define XRAPI_ATTR
// On Windows, functions use the stdcall convention
#define XRAPI_CALL __stdcall
#define XRAPI_PTR XRAPI_CALL
#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH < 7
#error "API not supported for the 'armeabi' NDK ABI"
#elif defined(__ANDROID__) && defined(__ARM_ARCH) && __ARM_ARCH >= 7 && defined(__ARM_32BIT_STATE)
// On Android 32-bit ARM targets, functions use the "hardfloat"
// calling convention, i.e. float parameters are passed in registers. This
// is true even if the rest of the application passes floats on the stack,
// as it does by default when compiling for the armeabi-v7a NDK ABI.
#define XRAPI_ATTR __attribute__((pcs("aapcs-vfp")))
#define XRAPI_CALL
#define XRAPI_PTR XRAPI_ATTR
#else
// On other platforms, use the default calling convention
#define XRAPI_ATTR
#define XRAPI_CALL
#define XRAPI_PTR
#endif
#include <stddef.h>
#if !defined(XR_NO_STDINT_H)
#if defined(_MSC_VER) && (_MSC_VER < 1600)
typedef signed __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef signed __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef signed __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
#include <stdint.h>
#endif
#endif // !defined( XR_NO_STDINT_H )
// XR_PTR_SIZE (in bytes)
#if (defined(__LP64__) || defined(_WIN64) || (defined(__x86_64__) && !defined(__ILP32__) ) || defined(_M_X64) || defined(__ia64) || defined (_M_IA64) || defined(__aarch64__) || defined(__powerpc64__))
#define XR_PTR_SIZE 8
#else
#define XR_PTR_SIZE 4
#endif
// Needed so we can use clang __has_feature portably.
#if !defined(XR_COMPILER_HAS_FEATURE)
#if defined(__clang__)
#define XR_COMPILER_HAS_FEATURE(x) __has_feature(x)
#else
#define XR_COMPILER_HAS_FEATURE(x) 0
#endif
#endif
// Identifies if the current compiler has C++11 support enabled.
// Does not by itself identify if any given C++11 feature is present.
#if !defined(XR_CPP11_ENABLED) && defined(__cplusplus)
#if defined(__GNUC__) && defined(__GXX_EXPERIMENTAL_CXX0X__)
#define XR_CPP11_ENABLED 1
#elif defined(_MSC_VER) && (_MSC_VER >= 1600)
#define XR_CPP11_ENABLED 1
#elif (__cplusplus >= 201103L) // 201103 is the first C++11 version.
#define XR_CPP11_ENABLED 1
#endif
#endif
// Identifies if the current compiler supports C++11 nullptr.
#if !defined(XR_CPP_NULLPTR_SUPPORTED)
#if defined(XR_CPP11_ENABLED) && \
((defined(__clang__) && XR_COMPILER_HAS_FEATURE(cxx_nullptr)) || \
(defined(__GNUC__) && (((__GNUC__ * 1000) + __GNUC_MINOR__) >= 4006)) || \
(defined(_MSC_VER) && (_MSC_VER >= 1600)) || \
(defined(__EDG_VERSION__) && (__EDG_VERSION__ >= 403)))
#define XR_CPP_NULLPTR_SUPPORTED 1
#endif
#endif
#ifdef __cplusplus
}
#endif
#endif

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#ifndef OPENXR_HELPERS_H_
#define OPENXR_HELPERS_H_
#include <xr_linear.h>
static inline XrTime ToXrTime(const double timeInSeconds) {
return (timeInSeconds * 1e9);
}
static inline double FromXrTime(const XrTime time) {
return (time * 1e-9);
}
static inline XrQuaternionf XrQuaternionf_Identity() {
XrQuaternionf r;
r.x = r.y = r.z = 0.0;
r.w = 1.0f;
return r;
}
static inline XrVector3f XrVector3f_Zero() {
XrVector3f r;
r.x = r.y = r.z = 0.0f;
return r;
}
static inline float XrVector3f_LengthSquared(const XrVector3f v) {
return XrVector3f_Dot(&v, &v);
}
static inline XrVector3f XrVector3f_ScalarMultiply(const XrVector3f v, float scale) {
XrVector3f u;
u.x = v.x * scale;
u.y = v.y * scale;
u.z = v.z * scale;
return u;
}
static inline XrVector3f XrVector3f_Normalized(const XrVector3f v) {
float rcpLen = 1.0f / XrVector3f_Length(&v);
return XrVector3f_ScalarMultiply(v, rcpLen);
}
static inline XrQuaternionf XrQuaternionf_Inverse(const XrQuaternionf q) {
XrQuaternionf r;
r.x = -q.x;
r.y = -q.y;
r.z = -q.z;
r.w = q.w;
return r;
}
static inline XrVector3f XrQuaternionf_Rotate(const XrQuaternionf a, const XrVector3f v) {
XrVector3f r;
XrQuaternionf q = {v.x, v.y, v.z, 0.0f};
XrQuaternionf aq;
XrQuaternionf_Multiply(&aq, &q, &a);
XrQuaternionf aInv = XrQuaternionf_Inverse(a);
XrQuaternionf aqaInv;
XrQuaternionf_Multiply(&aqaInv, &aInv, &aq);
r.x = aqaInv.x;
r.y = aqaInv.y;
r.z = aqaInv.z;
return r;
}
static inline XrQuaternionf XrQuaternionf_CreateFromVectorAngle(
const XrVector3f axis,
const float angle) {
XrQuaternionf r;
if (XrVector3f_LengthSquared(axis) == 0.0f) {
return XrQuaternionf_Identity();
}
XrVector3f unitAxis = XrVector3f_Normalized(axis);
float sinHalfAngle = sinf(angle * 0.5f);
r.w = cosf(angle * 0.5f);
r.x = unitAxis.x * sinHalfAngle;
r.y = unitAxis.y * sinHalfAngle;
r.z = unitAxis.z * sinHalfAngle;
return r;
}
static inline XrPosef XrPosef_Identity() {
XrPosef r;
r.orientation = XrQuaternionf_Identity();
r.position = XrVector3f_Zero();
return r;
}
static inline XrPosef XrPosef_Inverse(const XrPosef a) {
XrPosef b;
b.orientation = XrQuaternionf_Inverse(a.orientation);
b.position = XrQuaternionf_Rotate(b.orientation, XrVector3f_ScalarMultiply(a.position, -1.0f));
return b;
}
static inline XrVector3f XrPosef_Transform(const XrPosef a, const XrVector3f v) {
XrVector3f r0 = XrQuaternionf_Rotate(a.orientation, v);
XrVector3f result;
XrVector3f_Add(&result, &r0, &a.position);
return result;
}
static inline XrPosef XrPosef_Multiply(const XrPosef a, const XrPosef b) {
XrPosef c;
XrQuaternionf_Multiply(&c.orientation, &b.orientation, &a.orientation);
c.position = XrPosef_Transform(a, b.position);
return c;
}
#endif //OPENXR_HELPERS_H_

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// Copyright (c) 2017 The Khronos Group Inc.
// Copyright (c) 2016 Oculus VR, LLC.
//
// SPDX-License-Identifier: Apache-2.0
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Author: J.M.P. van Waveren
//
#ifndef XR_LINEAR_H_
#define XR_LINEAR_H_
#if defined(OS_LINUX_XCB) || defined(OS_LINUX_XCB_GLX) || defined(OS_LINUX_WAYLAND)
#pragma GCC diagnostic ignored "-Wunused-function"
#pragma clang diagnostic ignored "-Wunused-function"
#endif
#include <openxr/openxr.h>
/*
================================================================================================
Description : Vector, matrix and quaternion math.
Author : J.M.P. van Waveren
Date : 12/10/2016
Language : C99
Format : Indent 4 spaces - no tabs.
Copyright : Copyright (c) 2016 Oculus VR, LLC. All Rights reserved.
DESCRIPTION
===========
All matrices are column-major.
INTERFACE
=========
XrVector2f
XrVector3f
XrVector4f
XrQuaternionf
XrMatrix4x4f
inline static void XrVector3f_Set(XrVector3f* v, const float value);
inline static void XrVector3f_Add(XrVector3f* result, const XrVector3f* a, const XrVector3f* b);
inline static void XrVector3f_Sub(XrVector3f* result, const XrVector3f* a, const XrVector3f* b);
inline static void XrVector3f_Min(XrVector3f* result, const XrVector3f* a, const XrVector3f* b);
inline static void XrVector3f_Max(XrVector3f* result, const XrVector3f* a, const XrVector3f* b);
inline static void XrVector3f_Decay(XrVector3f* result, const XrVector3f* a, const float value);
inline static void XrVector3f_Lerp(XrVector3f* result, const XrVector3f* a, const XrVector3f* b, const float fraction);
inline static void XrVector3f_Scale(XrVector3f* result, const XrVector3f* a, const float scaleFactor);
inline static void XrVector3f_Normalize(XrVector3f* v);
inline static float XrVector3f_Length(const XrVector3f* v);
inline static void XrQuaternionf_Lerp(XrQuaternionf* result, const XrQuaternionf* a, const XrQuaternionf* b, const float fraction);
inline static void XrQuaternionf_Multiply(XrQuaternionf* result, const XrQuaternionf* a, const XrQuaternionf* b;
inline static void XrMatrix4x4f_CreateIdentity(XrMatrix4x4f* result);
inline static void XrMatrix4x4f_CreateTranslation(XrMatrix4x4f* result, const float x, const float y, const float z);
inline static void XrMatrix4x4f_CreateRotation(XrMatrix4x4f* result, const float degreesX, const float degreesY,
const float degreesZ);
inline static void XrMatrix4x4f_CreateScale(XrMatrix4x4f* result, const float x, const float y, const float z);
inline static void XrMatrix4x4f_CreateTranslationRotationScale(XrMatrix4x4f* result, const XrVector3f* translation,
const XrQuaternionf* rotation, const XrVector3f* scale);
inline static void XrMatrix4x4f_CreateProjection(XrMatrix4x4f* result, const float tanAngleLeft, const float tanAngleRight,
const float tanAngleUp, float const tanAngleDown, const float nearZ,
const float farZ);
inline static void XrMatrix4x4f_CreateProjectionFov(XrMatrix4x4f* result, const float fovDegreesLeft, const float fovDegreesRight,
const float fovDegreeUp, const float fovDegreesDown, const float nearZ,
const float farZ);
inline static void XrMatrix4x4f_CreateFromQuaternion(XrMatrix4x4f* result, const XrQuaternionf* src);
inline static void XrMatrix4x4f_CreateOffsetScaleForBounds(XrMatrix4x4f* result, const XrMatrix4x4f* matrix, const XrVector3f* mins,
const XrVector3f* maxs);
inline static bool XrMatrix4x4f_IsAffine(const XrMatrix4x4f* matrix, const float epsilon);
inline static bool XrMatrix4x4f_IsOrthogonal(const XrMatrix4x4f* matrix, const float epsilon);
inline static bool XrMatrix4x4f_IsOrthonormal(const XrMatrix4x4f* matrix, const float epsilon);
inline static bool XrMatrix4x4f_IsRigidBody(const XrMatrix4x4f* matrix, const float epsilon);
inline static void XrMatrix4x4f_GetTranslation(XrVector3f* result, const XrMatrix4x4f* src);
inline static void XrMatrix4x4f_GetRotation(XrQuaternionf* result, const XrMatrix4x4f* src);
inline static void XrMatrix4x4f_GetScale(XrVector3f* result, const XrMatrix4x4f* src);
inline static void XrMatrix4x4f_Multiply(XrMatrix4x4f* result, const XrMatrix4x4f* a, const XrMatrix4x4f* b);
inline static void XrMatrix4x4f_Transpose(XrMatrix4x4f* result, const XrMatrix4x4f* src);
inline static void XrMatrix4x4f_Invert(XrMatrix4x4f* result, const XrMatrix4x4f* src);
inline static void XrMatrix4x4f_InvertRigidBody(XrMatrix4x4f* result, const XrMatrix4x4f* src);
inline static void XrMatrix4x4f_TransformVector3f(XrVector3f* result, const XrMatrix4x4f* m, const XrVector3f* v);
inline static void XrMatrix4x4f_TransformVector4f(XrVector4f* result, const XrMatrix4x4f* m, const XrVector4f* v);
inline static void XrMatrix4x4f_TransformBounds(XrVector3f* resultMins, XrVector3f* resultMaxs, const XrMatrix4x4f* matrix,
const XrVector3f* mins, const XrVector3f* maxs);
inline static bool XrMatrix4x4f_CullBounds(const XrMatrix4x4f* mvp, const XrVector3f* mins, const XrVector3f* maxs);
================================================================================================
*/
#include <assert.h>
#include <math.h>
#include <stdbool.h>
#define MATH_PI 3.14159265358979323846f
#define DEFAULT_NEAR_Z 0.015625f // exact floating point representation
#define INFINITE_FAR_Z 0.0f
static const XrColor4f XrColorRed = {1.0f, 0.0f, 0.0f, 1.0f};
static const XrColor4f XrColorGreen = {0.0f, 1.0f, 0.0f, 1.0f};
static const XrColor4f XrColorBlue = {0.0f, 0.0f, 1.0f, 1.0f};
static const XrColor4f XrColorYellow = {1.0f, 1.0f, 0.0f, 1.0f};
static const XrColor4f XrColorPurple = {1.0f, 0.0f, 1.0f, 1.0f};
static const XrColor4f XrColorCyan = {0.0f, 1.0f, 1.0f, 1.0f};
static const XrColor4f XrColorLightGrey = {0.7f, 0.7f, 0.7f, 1.0f};
static const XrColor4f XrColorDarkGrey = {0.3f, 0.3f, 0.3f, 1.0f};
typedef enum GraphicsAPI { GRAPHICS_VULKAN, GRAPHICS_OPENGL, GRAPHICS_OPENGL_ES, GRAPHICS_D3D } GraphicsAPI;
// Column-major, pre-multiplied. This type does not exist in the OpenXR API and is provided for convenience.
typedef struct XrMatrix4x4f {
float m[16];
} XrMatrix4x4f;
inline static float XrRcpSqrt(const float x) {
const float SMALLEST_NON_DENORMAL = 1.1754943508222875e-038f; // ( 1U << 23 )
const float rcp = (x >= SMALLEST_NON_DENORMAL) ? 1.0f / sqrtf(x) : 1.0f;
return rcp;
}
inline static void XrVector3f_Set(XrVector3f* v, const float value) {
v->x = value;
v->y = value;
v->z = value;
}
inline static void XrVector3f_Add(XrVector3f* result, const XrVector3f* a, const XrVector3f* b) {
result->x = a->x + b->x;
result->y = a->y + b->y;
result->z = a->z + b->z;
}
inline static void XrVector3f_Sub(XrVector3f* result, const XrVector3f* a, const XrVector3f* b) {
result->x = a->x - b->x;
result->y = a->y - b->y;
result->z = a->z - b->z;
}
inline static void XrVector3f_Min(XrVector3f* result, const XrVector3f* a, const XrVector3f* b) {
result->x = (a->x < b->x) ? a->x : b->x;
result->y = (a->y < b->y) ? a->y : b->y;
result->z = (a->z < b->z) ? a->z : b->z;
}
inline static void XrVector3f_Max(XrVector3f* result, const XrVector3f* a, const XrVector3f* b) {
result->x = (a->x > b->x) ? a->x : b->x;
result->y = (a->y > b->y) ? a->y : b->y;
result->z = (a->z > b->z) ? a->z : b->z;
}
inline static void XrVector3f_Decay(XrVector3f* result, const XrVector3f* a, const float value) {
result->x = (fabsf(a->x) > value) ? ((a->x > 0.0f) ? (a->x - value) : (a->x + value)) : 0.0f;
result->y = (fabsf(a->y) > value) ? ((a->y > 0.0f) ? (a->y - value) : (a->y + value)) : 0.0f;
result->z = (fabsf(a->z) > value) ? ((a->z > 0.0f) ? (a->z - value) : (a->z + value)) : 0.0f;
}
inline static void XrVector3f_Lerp(XrVector3f* result, const XrVector3f* a, const XrVector3f* b, const float fraction) {
result->x = a->x + fraction * (b->x - a->x);
result->y = a->y + fraction * (b->y - a->y);
result->z = a->z + fraction * (b->z - a->z);
}
inline static void XrVector3f_Scale(XrVector3f* result, const XrVector3f* a, const float scaleFactor) {
result->x = a->x * scaleFactor;
result->y = a->y * scaleFactor;
result->z = a->z * scaleFactor;
}
inline static float XrVector3f_Dot(const XrVector3f* a, const XrVector3f* b) { return a->x * b->x + a->y * b->y + a->z * b->z; }
// Compute cross product, which generates a normal vector.
// Direction vector can be determined by right-hand rule: Pointing index finder in
// direction a and middle finger in direction b, thumb will point in Cross(a, b).
inline static void XrVector3f_Cross(XrVector3f* result, const XrVector3f* a, const XrVector3f* b) {
result->x = a->y * b->z - a->z * b->y;
result->y = a->z * b->x - a->x * b->z;
result->z = a->x * b->y - a->y * b->x;
}
inline static void XrVector3f_Normalize(XrVector3f* v) {
const float lengthRcp = XrRcpSqrt(v->x * v->x + v->y * v->y + v->z * v->z);
v->x *= lengthRcp;
v->y *= lengthRcp;
v->z *= lengthRcp;
}
inline static float XrVector3f_Length(const XrVector3f* v) { return sqrtf(v->x * v->x + v->y * v->y + v->z * v->z); }
inline static void XrQuaternionf_CreateFromAxisAngle(XrQuaternionf* result, const XrVector3f* axis, const float angleInRadians) {
float s = sinf(angleInRadians / 2.0f);
float lengthRcp = XrRcpSqrt(axis->x * axis->x + axis->y * axis->y + axis->z * axis->z);
result->x = s * axis->x * lengthRcp;
result->y = s * axis->y * lengthRcp;
result->z = s * axis->z * lengthRcp;
result->w = cosf(angleInRadians / 2.0f);
}
inline static void XrQuaternionf_Lerp(XrQuaternionf* result, const XrQuaternionf* a, const XrQuaternionf* b, const float fraction) {
const float s = a->x * b->x + a->y * b->y + a->z * b->z + a->w * b->w;
const float fa = 1.0f - fraction;
const float fb = (s < 0.0f) ? -fraction : fraction;
const float x = a->x * fa + b->x * fb;
const float y = a->y * fa + b->y * fb;
const float z = a->z * fa + b->z * fb;
const float w = a->w * fa + b->w * fb;
const float lengthRcp = XrRcpSqrt(x * x + y * y + z * z + w * w);
result->x = x * lengthRcp;
result->y = y * lengthRcp;
result->z = z * lengthRcp;
result->w = w * lengthRcp;
}
inline static void XrQuaternionf_Multiply(XrQuaternionf* result, const XrQuaternionf* a, const XrQuaternionf* b) {
result->x = (b->w * a->x) + (b->x * a->w) + (b->y * a->z) - (b->z * a->y);
result->y = (b->w * a->y) - (b->x * a->z) + (b->y * a->w) + (b->z * a->x);
result->z = (b->w * a->z) + (b->x * a->y) - (b->y * a->x) + (b->z * a->w);
result->w = (b->w * a->w) - (b->x * a->x) - (b->y * a->y) - (b->z * a->z);
}
// Use left-multiplication to accumulate transformations.
inline static void XrMatrix4x4f_Multiply(XrMatrix4x4f* result, const XrMatrix4x4f* a, const XrMatrix4x4f* b) {
result->m[0] = a->m[0] * b->m[0] + a->m[4] * b->m[1] + a->m[8] * b->m[2] + a->m[12] * b->m[3];
result->m[1] = a->m[1] * b->m[0] + a->m[5] * b->m[1] + a->m[9] * b->m[2] + a->m[13] * b->m[3];
result->m[2] = a->m[2] * b->m[0] + a->m[6] * b->m[1] + a->m[10] * b->m[2] + a->m[14] * b->m[3];
result->m[3] = a->m[3] * b->m[0] + a->m[7] * b->m[1] + a->m[11] * b->m[2] + a->m[15] * b->m[3];
result->m[4] = a->m[0] * b->m[4] + a->m[4] * b->m[5] + a->m[8] * b->m[6] + a->m[12] * b->m[7];
result->m[5] = a->m[1] * b->m[4] + a->m[5] * b->m[5] + a->m[9] * b->m[6] + a->m[13] * b->m[7];
result->m[6] = a->m[2] * b->m[4] + a->m[6] * b->m[5] + a->m[10] * b->m[6] + a->m[14] * b->m[7];
result->m[7] = a->m[3] * b->m[4] + a->m[7] * b->m[5] + a->m[11] * b->m[6] + a->m[15] * b->m[7];
result->m[8] = a->m[0] * b->m[8] + a->m[4] * b->m[9] + a->m[8] * b->m[10] + a->m[12] * b->m[11];
result->m[9] = a->m[1] * b->m[8] + a->m[5] * b->m[9] + a->m[9] * b->m[10] + a->m[13] * b->m[11];
result->m[10] = a->m[2] * b->m[8] + a->m[6] * b->m[9] + a->m[10] * b->m[10] + a->m[14] * b->m[11];
result->m[11] = a->m[3] * b->m[8] + a->m[7] * b->m[9] + a->m[11] * b->m[10] + a->m[15] * b->m[11];
result->m[12] = a->m[0] * b->m[12] + a->m[4] * b->m[13] + a->m[8] * b->m[14] + a->m[12] * b->m[15];
result->m[13] = a->m[1] * b->m[12] + a->m[5] * b->m[13] + a->m[9] * b->m[14] + a->m[13] * b->m[15];
result->m[14] = a->m[2] * b->m[12] + a->m[6] * b->m[13] + a->m[10] * b->m[14] + a->m[14] * b->m[15];
result->m[15] = a->m[3] * b->m[12] + a->m[7] * b->m[13] + a->m[11] * b->m[14] + a->m[15] * b->m[15];
}
// Creates the transpose of the given matrix.
inline static void XrMatrix4x4f_Transpose(XrMatrix4x4f* result, const XrMatrix4x4f* src) {
result->m[0] = src->m[0];
result->m[1] = src->m[4];
result->m[2] = src->m[8];
result->m[3] = src->m[12];
result->m[4] = src->m[1];
result->m[5] = src->m[5];
result->m[6] = src->m[9];
result->m[7] = src->m[13];
result->m[8] = src->m[2];
result->m[9] = src->m[6];
result->m[10] = src->m[10];
result->m[11] = src->m[14];
result->m[12] = src->m[3];
result->m[13] = src->m[7];
result->m[14] = src->m[11];
result->m[15] = src->m[15];
}
// Returns a 3x3 minor of a 4x4 matrix.
inline static float XrMatrix4x4f_Minor(const XrMatrix4x4f* matrix, int r0, int r1, int r2, int c0, int c1, int c2) {
return matrix->m[4 * r0 + c0] *
(matrix->m[4 * r1 + c1] * matrix->m[4 * r2 + c2] - matrix->m[4 * r2 + c1] * matrix->m[4 * r1 + c2]) -
matrix->m[4 * r0 + c1] *
(matrix->m[4 * r1 + c0] * matrix->m[4 * r2 + c2] - matrix->m[4 * r2 + c0] * matrix->m[4 * r1 + c2]) +
matrix->m[4 * r0 + c2] *
(matrix->m[4 * r1 + c0] * matrix->m[4 * r2 + c1] - matrix->m[4 * r2 + c0] * matrix->m[4 * r1 + c1]);
}
// Calculates the inverse of a 4x4 matrix.
inline static void XrMatrix4x4f_Invert(XrMatrix4x4f* result, const XrMatrix4x4f* src) {
const float rcpDet =
1.0f / (src->m[0] * XrMatrix4x4f_Minor(src, 1, 2, 3, 1, 2, 3) - src->m[1] * XrMatrix4x4f_Minor(src, 1, 2, 3, 0, 2, 3) +
src->m[2] * XrMatrix4x4f_Minor(src, 1, 2, 3, 0, 1, 3) - src->m[3] * XrMatrix4x4f_Minor(src, 1, 2, 3, 0, 1, 2));
result->m[0] = XrMatrix4x4f_Minor(src, 1, 2, 3, 1, 2, 3) * rcpDet;
result->m[1] = -XrMatrix4x4f_Minor(src, 0, 2, 3, 1, 2, 3) * rcpDet;
result->m[2] = XrMatrix4x4f_Minor(src, 0, 1, 3, 1, 2, 3) * rcpDet;
result->m[3] = -XrMatrix4x4f_Minor(src, 0, 1, 2, 1, 2, 3) * rcpDet;
result->m[4] = -XrMatrix4x4f_Minor(src, 1, 2, 3, 0, 2, 3) * rcpDet;
result->m[5] = XrMatrix4x4f_Minor(src, 0, 2, 3, 0, 2, 3) * rcpDet;
result->m[6] = -XrMatrix4x4f_Minor(src, 0, 1, 3, 0, 2, 3) * rcpDet;
result->m[7] = XrMatrix4x4f_Minor(src, 0, 1, 2, 0, 2, 3) * rcpDet;
result->m[8] = XrMatrix4x4f_Minor(src, 1, 2, 3, 0, 1, 3) * rcpDet;
result->m[9] = -XrMatrix4x4f_Minor(src, 0, 2, 3, 0, 1, 3) * rcpDet;
result->m[10] = XrMatrix4x4f_Minor(src, 0, 1, 3, 0, 1, 3) * rcpDet;
result->m[11] = -XrMatrix4x4f_Minor(src, 0, 1, 2, 0, 1, 3) * rcpDet;
result->m[12] = -XrMatrix4x4f_Minor(src, 1, 2, 3, 0, 1, 2) * rcpDet;
result->m[13] = XrMatrix4x4f_Minor(src, 0, 2, 3, 0, 1, 2) * rcpDet;
result->m[14] = -XrMatrix4x4f_Minor(src, 0, 1, 3, 0, 1, 2) * rcpDet;
result->m[15] = XrMatrix4x4f_Minor(src, 0, 1, 2, 0, 1, 2) * rcpDet;
}
// Calculates the inverse of a rigid body transform.
inline static void XrMatrix4x4f_InvertRigidBody(XrMatrix4x4f* result, const XrMatrix4x4f* src) {
result->m[0] = src->m[0];
result->m[1] = src->m[4];
result->m[2] = src->m[8];
result->m[3] = 0.0f;
result->m[4] = src->m[1];
result->m[5] = src->m[5];
result->m[6] = src->m[9];
result->m[7] = 0.0f;
result->m[8] = src->m[2];
result->m[9] = src->m[6];
result->m[10] = src->m[10];
result->m[11] = 0.0f;
result->m[12] = -(src->m[0] * src->m[12] + src->m[1] * src->m[13] + src->m[2] * src->m[14]);
result->m[13] = -(src->m[4] * src->m[12] + src->m[5] * src->m[13] + src->m[6] * src->m[14]);
result->m[14] = -(src->m[8] * src->m[12] + src->m[9] * src->m[13] + src->m[10] * src->m[14]);
result->m[15] = 1.0f;
}
// Creates an identity matrix.
inline static void XrMatrix4x4f_CreateIdentity(XrMatrix4x4f* result) {
result->m[0] = 1.0f;
result->m[1] = 0.0f;
result->m[2] = 0.0f;
result->m[3] = 0.0f;
result->m[4] = 0.0f;
result->m[5] = 1.0f;
result->m[6] = 0.0f;
result->m[7] = 0.0f;
result->m[8] = 0.0f;
result->m[9] = 0.0f;
result->m[10] = 1.0f;
result->m[11] = 0.0f;
result->m[12] = 0.0f;
result->m[13] = 0.0f;
result->m[14] = 0.0f;
result->m[15] = 1.0f;
}
// Creates a translation matrix.
inline static void XrMatrix4x4f_CreateTranslation(XrMatrix4x4f* result, const float x, const float y, const float z) {
result->m[0] = 1.0f;
result->m[1] = 0.0f;
result->m[2] = 0.0f;
result->m[3] = 0.0f;
result->m[4] = 0.0f;
result->m[5] = 1.0f;
result->m[6] = 0.0f;
result->m[7] = 0.0f;
result->m[8] = 0.0f;
result->m[9] = 0.0f;
result->m[10] = 1.0f;
result->m[11] = 0.0f;
result->m[12] = x;
result->m[13] = y;
result->m[14] = z;
result->m[15] = 1.0f;
}
// Creates a rotation matrix.
// If -Z=forward, +Y=up, +X=right, then degreesX=pitch, degreesY=yaw, degreesZ=roll.
inline static void XrMatrix4x4f_CreateRotation(XrMatrix4x4f* result, const float degreesX, const float degreesY,
const float degreesZ) {
const float sinX = sinf(degreesX * (MATH_PI / 180.0f));
const float cosX = cosf(degreesX * (MATH_PI / 180.0f));
const XrMatrix4x4f rotationX = {{1, 0, 0, 0, 0, cosX, sinX, 0, 0, -sinX, cosX, 0, 0, 0, 0, 1}};
const float sinY = sinf(degreesY * (MATH_PI / 180.0f));
const float cosY = cosf(degreesY * (MATH_PI / 180.0f));
const XrMatrix4x4f rotationY = {{cosY, 0, -sinY, 0, 0, 1, 0, 0, sinY, 0, cosY, 0, 0, 0, 0, 1}};
const float sinZ = sinf(degreesZ * (MATH_PI / 180.0f));
const float cosZ = cosf(degreesZ * (MATH_PI / 180.0f));
const XrMatrix4x4f rotationZ = {{cosZ, sinZ, 0, 0, -sinZ, cosZ, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1}};
XrMatrix4x4f rotationXY;
XrMatrix4x4f_Multiply(&rotationXY, &rotationY, &rotationX);
XrMatrix4x4f_Multiply(result, &rotationZ, &rotationXY);
}
// Creates a scale matrix.
inline static void XrMatrix4x4f_CreateScale(XrMatrix4x4f* result, const float x, const float y, const float z) {
result->m[0] = x;
result->m[1] = 0.0f;
result->m[2] = 0.0f;
result->m[3] = 0.0f;
result->m[4] = 0.0f;
result->m[5] = y;
result->m[6] = 0.0f;
result->m[7] = 0.0f;
result->m[8] = 0.0f;
result->m[9] = 0.0f;
result->m[10] = z;
result->m[11] = 0.0f;
result->m[12] = 0.0f;
result->m[13] = 0.0f;
result->m[14] = 0.0f;
result->m[15] = 1.0f;
}
// Creates a matrix from a quaternion.
inline static void XrMatrix4x4f_CreateFromQuaternion(XrMatrix4x4f* result, const XrQuaternionf* quat) {
const float x2 = quat->x + quat->x;
const float y2 = quat->y + quat->y;
const float z2 = quat->z + quat->z;
const float xx2 = quat->x * x2;
const float yy2 = quat->y * y2;
const float zz2 = quat->z * z2;
const float yz2 = quat->y * z2;
const float wx2 = quat->w * x2;
const float xy2 = quat->x * y2;
const float wz2 = quat->w * z2;
const float xz2 = quat->x * z2;
const float wy2 = quat->w * y2;
result->m[0] = 1.0f - yy2 - zz2;
result->m[1] = xy2 + wz2;
result->m[2] = xz2 - wy2;
result->m[3] = 0.0f;
result->m[4] = xy2 - wz2;
result->m[5] = 1.0f - xx2 - zz2;
result->m[6] = yz2 + wx2;
result->m[7] = 0.0f;
result->m[8] = xz2 + wy2;
result->m[9] = yz2 - wx2;
result->m[10] = 1.0f - xx2 - yy2;
result->m[11] = 0.0f;
result->m[12] = 0.0f;
result->m[13] = 0.0f;
result->m[14] = 0.0f;
result->m[15] = 1.0f;
}
// Creates a combined translation(rotation(scale(object))) matrix.
inline static void XrMatrix4x4f_CreateTranslationRotationScale(XrMatrix4x4f* result, const XrVector3f* translation,
const XrQuaternionf* rotation, const XrVector3f* scale) {
XrMatrix4x4f scaleMatrix;
XrMatrix4x4f_CreateScale(&scaleMatrix, scale->x, scale->y, scale->z);
XrMatrix4x4f rotationMatrix;
XrMatrix4x4f_CreateFromQuaternion(&rotationMatrix, rotation);
XrMatrix4x4f translationMatrix;
XrMatrix4x4f_CreateTranslation(&translationMatrix, translation->x, translation->y, translation->z);
XrMatrix4x4f combinedMatrix;
XrMatrix4x4f_Multiply(&combinedMatrix, &rotationMatrix, &scaleMatrix);
XrMatrix4x4f_Multiply(result, &translationMatrix, &combinedMatrix);
}
// Creates a projection matrix based on the specified dimensions.
// The projection matrix transforms -Z=forward, +Y=up, +X=right to the appropriate clip space for the graphics API.
// The far plane is placed at infinity if farZ <= nearZ.
// An infinite projection matrix is preferred for rasterization because, except for
// things *right* up against the near plane, it always provides better precision:
// "Tightening the Precision of Perspective Rendering"
// Paul Upchurch, Mathieu Desbrun
// Journal of Graphics Tools, Volume 16, Issue 1, 2012
inline static void XrMatrix4x4f_CreateProjection(XrMatrix4x4f* result, GraphicsAPI graphicsApi, const float tanAngleLeft,
const float tanAngleRight, const float tanAngleUp, float const tanAngleDown,
const float nearZ, const float farZ) {
const float tanAngleWidth = tanAngleRight - tanAngleLeft;
// Set to tanAngleDown - tanAngleUp for a clip space with positive Y down (Vulkan).
// Set to tanAngleUp - tanAngleDown for a clip space with positive Y up (OpenGL / D3D / Metal).
const float tanAngleHeight = graphicsApi == GRAPHICS_VULKAN ? (tanAngleDown - tanAngleUp) : (tanAngleUp - tanAngleDown);
// Set to nearZ for a [-1,1] Z clip space (OpenGL / OpenGL ES).
// Set to zero for a [0,1] Z clip space (Vulkan / D3D / Metal).
const float offsetZ = (graphicsApi == GRAPHICS_OPENGL || graphicsApi == GRAPHICS_OPENGL_ES) ? nearZ : 0;
if (farZ <= nearZ) {
// place the far plane at infinity
result->m[0] = 2.0f / tanAngleWidth;
result->m[4] = 0.0f;
result->m[8] = (tanAngleRight + tanAngleLeft) / tanAngleWidth;
result->m[12] = 0.0f;
result->m[1] = 0.0f;
result->m[5] = 2.0f / tanAngleHeight;
result->m[9] = (tanAngleUp + tanAngleDown) / tanAngleHeight;
result->m[13] = 0.0f;
result->m[2] = 0.0f;
result->m[6] = 0.0f;
result->m[10] = -1.0f;
result->m[14] = -(nearZ + offsetZ);
result->m[3] = 0.0f;
result->m[7] = 0.0f;
result->m[11] = -1.0f;
result->m[15] = 0.0f;
} else {
// normal projection
result->m[0] = 2.0f / tanAngleWidth;
result->m[4] = 0.0f;
result->m[8] = (tanAngleRight + tanAngleLeft) / tanAngleWidth;
result->m[12] = 0.0f;
result->m[1] = 0.0f;
result->m[5] = 2.0f / tanAngleHeight;
result->m[9] = (tanAngleUp + tanAngleDown) / tanAngleHeight;
result->m[13] = 0.0f;
result->m[2] = 0.0f;
result->m[6] = 0.0f;
result->m[10] = -(farZ + offsetZ) / (farZ - nearZ);
result->m[14] = -(farZ * (nearZ + offsetZ)) / (farZ - nearZ);
result->m[3] = 0.0f;
result->m[7] = 0.0f;
result->m[11] = -1.0f;
result->m[15] = 0.0f;
}
}
// Creates a projection matrix based on the specified FOV.
inline static void XrMatrix4x4f_CreateProjectionFov(XrMatrix4x4f* result, GraphicsAPI graphicsApi, const XrFovf fov,
const float nearZ, const float farZ) {
const float tanLeft = tanf(fov.angleLeft);
const float tanRight = tanf(fov.angleRight);
const float tanDown = tanf(fov.angleDown);
const float tanUp = tanf(fov.angleUp);
XrMatrix4x4f_CreateProjection(result, graphicsApi, tanLeft, tanRight, tanUp, tanDown, nearZ, farZ);
}
// Creates a matrix that transforms the -1 to 1 cube to cover the given 'mins' and 'maxs' transformed with the given 'matrix'.
inline static void XrMatrix4x4f_CreateOffsetScaleForBounds(XrMatrix4x4f* result, const XrMatrix4x4f* matrix, const XrVector3f* mins,
const XrVector3f* maxs) {
const XrVector3f offset = {(maxs->x + mins->x) * 0.5f, (maxs->y + mins->y) * 0.5f, (maxs->z + mins->z) * 0.5f};
const XrVector3f scale = {(maxs->x - mins->x) * 0.5f, (maxs->y - mins->y) * 0.5f, (maxs->z - mins->z) * 0.5f};
result->m[0] = matrix->m[0] * scale.x;
result->m[1] = matrix->m[1] * scale.x;
result->m[2] = matrix->m[2] * scale.x;
result->m[3] = matrix->m[3] * scale.x;
result->m[4] = matrix->m[4] * scale.y;
result->m[5] = matrix->m[5] * scale.y;
result->m[6] = matrix->m[6] * scale.y;
result->m[7] = matrix->m[7] * scale.y;
result->m[8] = matrix->m[8] * scale.z;
result->m[9] = matrix->m[9] * scale.z;
result->m[10] = matrix->m[10] * scale.z;
result->m[11] = matrix->m[11] * scale.z;
result->m[12] = matrix->m[12] + matrix->m[0] * offset.x + matrix->m[4] * offset.y + matrix->m[8] * offset.z;
result->m[13] = matrix->m[13] + matrix->m[1] * offset.x + matrix->m[5] * offset.y + matrix->m[9] * offset.z;
result->m[14] = matrix->m[14] + matrix->m[2] * offset.x + matrix->m[6] * offset.y + matrix->m[10] * offset.z;
result->m[15] = matrix->m[15] + matrix->m[3] * offset.x + matrix->m[7] * offset.y + matrix->m[11] * offset.z;
}
// Returns true if the given matrix is affine.
inline static bool XrMatrix4x4f_IsAffine(const XrMatrix4x4f* matrix, const float epsilon) {
return fabsf(matrix->m[3]) <= epsilon && fabsf(matrix->m[7]) <= epsilon && fabsf(matrix->m[11]) <= epsilon &&
fabsf(matrix->m[15] - 1.0f) <= epsilon;
}
// Returns true if the given matrix is orthogonal.
inline static bool XrMatrix4x4f_IsOrthogonal(const XrMatrix4x4f* matrix, const float epsilon) {
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
if (i != j) {
if (fabsf(matrix->m[4 * i + 0] * matrix->m[4 * j + 0] + matrix->m[4 * i + 1] * matrix->m[4 * j + 1] +
matrix->m[4 * i + 2] * matrix->m[4 * j + 2]) > epsilon) {
return false;
}
if (fabsf(matrix->m[4 * 0 + i] * matrix->m[4 * 0 + j] + matrix->m[4 * 1 + i] * matrix->m[4 * 1 + j] +
matrix->m[4 * 2 + i] * matrix->m[4 * 2 + j]) > epsilon) {
return false;
}
}
}
}
return true;
}
// Returns true if the given matrix is orthonormal.
inline static bool XrMatrix4x4f_IsOrthonormal(const XrMatrix4x4f* matrix, const float epsilon) {
for (int i = 0; i < 3; i++) {
for (int j = 0; j < 3; j++) {
const float kd = (i == j) ? 1.0f : 0.0f; // Kronecker delta
if (fabsf(kd - (matrix->m[4 * i + 0] * matrix->m[4 * j + 0] + matrix->m[4 * i + 1] * matrix->m[4 * j + 1] +
matrix->m[4 * i + 2] * matrix->m[4 * j + 2])) > epsilon) {
return false;
}
if (fabsf(kd - (matrix->m[4 * 0 + i] * matrix->m[4 * 0 + j] + matrix->m[4 * 1 + i] * matrix->m[4 * 1 + j] +
matrix->m[4 * 2 + i] * matrix->m[4 * 2 + j])) > epsilon) {
return false;
}
}
}
return true;
}
// Returns true if the given matrix is a rigid body transform.
inline static bool XrMatrix4x4f_IsRigidBody(const XrMatrix4x4f* matrix, const float epsilon) {
return XrMatrix4x4f_IsAffine(matrix, epsilon) && XrMatrix4x4f_IsOrthonormal(matrix, epsilon);
}
// Get the translation from a combined translation(rotation(scale(object))) matrix.
inline static void XrMatrix4x4f_GetTranslation(XrVector3f* result, const XrMatrix4x4f* src) {
assert(XrMatrix4x4f_IsAffine(src, 1e-4f));
assert(XrMatrix4x4f_IsOrthogonal(src, 1e-4f));
result->x = src->m[12];
result->y = src->m[13];
result->z = src->m[14];
}
// Get the rotation from a combined translation(rotation(scale(object))) matrix.
inline static void XrMatrix4x4f_GetRotation(XrQuaternionf* result, const XrMatrix4x4f* src) {
assert(XrMatrix4x4f_IsAffine(src, 1e-4f));
assert(XrMatrix4x4f_IsOrthogonal(src, 1e-4f));
const float rcpScaleX = XrRcpSqrt(src->m[0] * src->m[0] + src->m[1] * src->m[1] + src->m[2] * src->m[2]);
const float rcpScaleY = XrRcpSqrt(src->m[4] * src->m[4] + src->m[5] * src->m[5] + src->m[6] * src->m[6]);
const float rcpScaleZ = XrRcpSqrt(src->m[8] * src->m[8] + src->m[9] * src->m[9] + src->m[10] * src->m[10]);
const float m[9] = {src->m[0] * rcpScaleX, src->m[1] * rcpScaleX, src->m[2] * rcpScaleX,
src->m[4] * rcpScaleY, src->m[5] * rcpScaleY, src->m[6] * rcpScaleY,
src->m[8] * rcpScaleZ, src->m[9] * rcpScaleZ, src->m[10] * rcpScaleZ};
if (m[0 * 3 + 0] + m[1 * 3 + 1] + m[2 * 3 + 2] > 0.0f) {
float t = +m[0 * 3 + 0] + m[1 * 3 + 1] + m[2 * 3 + 2] + 1.0f;
float s = XrRcpSqrt(t) * 0.5f;
result->w = s * t;
result->z = (m[0 * 3 + 1] - m[1 * 3 + 0]) * s;
result->y = (m[2 * 3 + 0] - m[0 * 3 + 2]) * s;
result->x = (m[1 * 3 + 2] - m[2 * 3 + 1]) * s;
} else if (m[0 * 3 + 0] > m[1 * 3 + 1] && m[0 * 3 + 0] > m[2 * 3 + 2]) {
float t = +m[0 * 3 + 0] - m[1 * 3 + 1] - m[2 * 3 + 2] + 1.0f;
float s = XrRcpSqrt(t) * 0.5f;
result->x = s * t;
result->y = (m[0 * 3 + 1] + m[1 * 3 + 0]) * s;
result->z = (m[2 * 3 + 0] + m[0 * 3 + 2]) * s;
result->w = (m[1 * 3 + 2] - m[2 * 3 + 1]) * s;
} else if (m[1 * 3 + 1] > m[2 * 3 + 2]) {
float t = -m[0 * 3 + 0] + m[1 * 3 + 1] - m[2 * 3 + 2] + 1.0f;
float s = XrRcpSqrt(t) * 0.5f;
result->y = s * t;
result->x = (m[0 * 3 + 1] + m[1 * 3 + 0]) * s;
result->w = (m[2 * 3 + 0] - m[0 * 3 + 2]) * s;
result->z = (m[1 * 3 + 2] + m[2 * 3 + 1]) * s;
} else {
float t = -m[0 * 3 + 0] - m[1 * 3 + 1] + m[2 * 3 + 2] + 1.0f;
float s = XrRcpSqrt(t) * 0.5f;
result->z = s * t;
result->w = (m[0 * 3 + 1] - m[1 * 3 + 0]) * s;
result->x = (m[2 * 3 + 0] + m[0 * 3 + 2]) * s;
result->y = (m[1 * 3 + 2] + m[2 * 3 + 1]) * s;
}
}
// Get the scale from a combined translation(rotation(scale(object))) matrix.
inline static void XrMatrix4x4f_GetScale(XrVector3f* result, const XrMatrix4x4f* src) {
assert(XrMatrix4x4f_IsAffine(src, 1e-4f));
assert(XrMatrix4x4f_IsOrthogonal(src, 1e-4f));
result->x = sqrtf(src->m[0] * src->m[0] + src->m[1] * src->m[1] + src->m[2] * src->m[2]);
result->y = sqrtf(src->m[4] * src->m[4] + src->m[5] * src->m[5] + src->m[6] * src->m[6]);
result->z = sqrtf(src->m[8] * src->m[8] + src->m[9] * src->m[9] + src->m[10] * src->m[10]);
}
// Transforms a 3D vector.
inline static void XrMatrix4x4f_TransformVector3f(XrVector3f* result, const XrMatrix4x4f* m, const XrVector3f* v) {
const float w = m->m[3] * v->x + m->m[7] * v->y + m->m[11] * v->z + m->m[15];
const float rcpW = 1.0f / w;
result->x = (m->m[0] * v->x + m->m[4] * v->y + m->m[8] * v->z + m->m[12]) * rcpW;
result->y = (m->m[1] * v->x + m->m[5] * v->y + m->m[9] * v->z + m->m[13]) * rcpW;
result->z = (m->m[2] * v->x + m->m[6] * v->y + m->m[10] * v->z + m->m[14]) * rcpW;
}
// Transforms a 4D vector.
inline static void XrMatrix4x4f_TransformVector4f(XrVector4f* result, const XrMatrix4x4f* m, const XrVector4f* v) {
result->x = m->m[0] * v->x + m->m[4] * v->y + m->m[8] * v->z + m->m[12] * v->w;
result->y = m->m[1] * v->x + m->m[5] * v->y + m->m[9] * v->z + m->m[13] * v->w;
result->z = m->m[2] * v->x + m->m[6] * v->y + m->m[10] * v->z + m->m[14] * v->w;
result->w = m->m[3] * v->x + m->m[7] * v->y + m->m[11] * v->z + m->m[15] * v->w;
}
// Transforms the 'mins' and 'maxs' bounds with the given 'matrix'.
inline static void XrMatrix4x4f_TransformBounds(XrVector3f* resultMins, XrVector3f* resultMaxs, const XrMatrix4x4f* matrix,
const XrVector3f* mins, const XrVector3f* maxs) {
assert(XrMatrix4x4f_IsAffine(matrix, 1e-4f));
const XrVector3f center = {(mins->x + maxs->x) * 0.5f, (mins->y + maxs->y) * 0.5f, (mins->z + maxs->z) * 0.5f};
const XrVector3f extents = {maxs->x - center.x, maxs->y - center.y, maxs->z - center.z};
const XrVector3f newCenter = {matrix->m[0] * center.x + matrix->m[4] * center.y + matrix->m[8] * center.z + matrix->m[12],
matrix->m[1] * center.x + matrix->m[5] * center.y + matrix->m[9] * center.z + matrix->m[13],
matrix->m[2] * center.x + matrix->m[6] * center.y + matrix->m[10] * center.z + matrix->m[14]};
const XrVector3f newExtents = {
fabsf(extents.x * matrix->m[0]) + fabsf(extents.y * matrix->m[4]) + fabsf(extents.z * matrix->m[8]),
fabsf(extents.x * matrix->m[1]) + fabsf(extents.y * matrix->m[5]) + fabsf(extents.z * matrix->m[9]),
fabsf(extents.x * matrix->m[2]) + fabsf(extents.y * matrix->m[6]) + fabsf(extents.z * matrix->m[10])};
XrVector3f_Sub(resultMins, &newCenter, &newExtents);
XrVector3f_Add(resultMaxs, &newCenter, &newExtents);
}
// Returns true if the 'mins' and 'maxs' bounds is completely off to one side of the projection matrix.
inline static bool XrMatrix4x4f_CullBounds(const XrMatrix4x4f* mvp, const XrVector3f* mins, const XrVector3f* maxs) {
if (maxs->x <= mins->x && maxs->y <= mins->y && maxs->z <= mins->z) {
return false;
}
XrVector4f c[8];
for (int i = 0; i < 8; i++) {
const XrVector4f corner = {(i & 1) != 0 ? maxs->x : mins->x, (i & 2) != 0 ? maxs->y : mins->y,
(i & 4) != 0 ? maxs->z : mins->z, 1.0f};
XrMatrix4x4f_TransformVector4f(&c[i], mvp, &corner);
}
int i;
for (i = 0; i < 8; i++) {
if (c[i].x > -c[i].w) {
break;
}
}
if (i == 8) {
return true;
}
for (i = 0; i < 8; i++) {
if (c[i].x < c[i].w) {
break;
}
}
if (i == 8) {
return true;
}
for (i = 0; i < 8; i++) {
if (c[i].y > -c[i].w) {
break;
}
}
if (i == 8) {
return true;
}
for (i = 0; i < 8; i++) {
if (c[i].y < c[i].w) {
break;
}
}
if (i == 8) {
return true;
}
for (i = 0; i < 8; i++) {
if (c[i].z > -c[i].w) {
break;
}
}
if (i == 8) {
return true;
}
for (i = 0; i < 8; i++) {
if (c[i].z < c[i].w) {
break;
}
}
return i == 8;
}
#endif // XR_LINEAR_H_