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quakequest/Projects/Android/jni/QuakeQuestSrc/TBXR_Common.c
Simon b4a24d1765 Updated to OpenXR 
Also means the Pico 4 works now
2022-12-22 22:22:52 +00:00

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#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <pthread.h>
#include <sys/prctl.h> // for prctl( PR_SET_NAME )
#include <android/log.h>
#include <android/native_window_jni.h> // for native window JNI
#include <android/input.h>
#include "argtable3.h"
#include "VrCommon.h"
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES3/gl3.h>
#include <GLES3/gl3ext.h>
#if !defined( EGL_OPENGL_ES3_BIT_KHR )
#define EGL_OPENGL_ES3_BIT_KHR 0x0040
#endif
// EXT_texture_border_clamp
#ifndef GL_CLAMP_TO_BORDER
#define GL_CLAMP_TO_BORDER 0x812D
#endif
#ifndef GL_TEXTURE_BORDER_COLOR
#define GL_TEXTURE_BORDER_COLOR 0x1004
#endif
#ifndef GLAPI
#define GLAPI extern
#endif
//#define ENABLE_GL_DEBUG
#define ENABLE_GL_DEBUG_VERBOSE 1
#define EGL_SYNC
#if defined EGL_SYNC
// EGL_KHR_reusable_sync
PFNEGLCREATESYNCKHRPROC eglCreateSyncKHR;
PFNEGLDESTROYSYNCKHRPROC eglDestroySyncKHR;
PFNEGLCLIENTWAITSYNCKHRPROC eglClientWaitSyncKHR;
PFNEGLSIGNALSYNCKHRPROC eglSignalSyncKHR;
PFNEGLGETSYNCATTRIBKHRPROC eglGetSyncAttribKHR;
#endif
//Let's go to the maximum!
int NUM_MULTI_SAMPLES = 1;
int REFRESH = 0;
float SS_MULTIPLIER = 0.0f;
GLboolean stageSupported = GL_FALSE;
#ifdef META_QUEST
const char* const requiredExtensionNames[] = {
XR_KHR_OPENGL_ES_ENABLE_EXTENSION_NAME,
XR_EXT_PERFORMANCE_SETTINGS_EXTENSION_NAME,
XR_KHR_ANDROID_THREAD_SETTINGS_EXTENSION_NAME,
XR_FB_DISPLAY_REFRESH_RATE_EXTENSION_NAME,
XR_FB_COLOR_SPACE_EXTENSION_NAME};
#endif //META_QUEST
#ifdef PICO_XR
#define XR_PICO_CONFIGS_EXT_EXTENSION_NAME "XR_PICO_configs_ext"
enum ConfigsEXT
{
RENDER_TEXTURE_WIDTH = 0,
RENDER_TEXTURE_HEIGHT,
SHOW_FPS,
RUNTIME_LOG_LEVEL,
PXRPLUGIN_LOG_LEVEL,
UNITY_LOG_LEVEL,
UNREAL_LOG_LEVEL,
NATIVE_LOG_LEVEL,
TARGET_FRAME_RATE,
NECK_MODEL_X,
NECK_MODEL_Y,
NECK_MODEL_Z,
DISPLAY_REFRESH_RATE,
ENABLE_6DOF,
CONTROLLER_TYPE,
PHYSICAL_IPD,
TO_DELTA_SENSOR_Y,
GET_DISPLAY_RATE,
FOVEATION_SUBSAMPLED_ENABLED = 18,
TRACKING_ORIGIN_HEIGHT
};
typedef XrResult (XRAPI_PTR *PFN_xrGetConfigPICO)(
XrSession session,
enum ConfigsEXT configIndex,
float * configData);
PFN_xrGetConfigPICO pfnXrGetConfigPICO;
enum ConfigsSetEXT
{
UNREAL_VERSION = 0,
TRACKING_ORIGIN,
OPENGL_NOERROR,
ENABLE_SIX_DOF,
PRESENTATION_FLAG,
ENABLE_CPT,
PLATFORM,
FOVEATION_LEVEL,
SET_DISPLAY_RATE = 8,
MRC_TEXTURE_ID = 9,
};
typedef XrResult (XRAPI_PTR *PFN_xrSetConfigPICO) (
XrSession session,
enum ConfigsSetEXT configIndex,
char * configData);
PFN_xrSetConfigPICO pfnXrSetConfigPICO;
const char* const requiredExtensionNames[] = {
XR_KHR_ANDROID_CREATE_INSTANCE_EXTENSION_NAME,
XR_EXT_PERFORMANCE_SETTINGS_EXTENSION_NAME,
XR_KHR_OPENGL_ES_ENABLE_EXTENSION_NAME,
XR_PICO_CONFIGS_EXT_EXTENSION_NAME};
#endif //PICO_XR
const uint32_t numRequiredExtensions =
sizeof(requiredExtensionNames) / sizeof(requiredExtensionNames[0]);
/*
================================================================================
System Clock Time in millis
================================================================================
*/
double TBXR_GetTimeInMilliSeconds()
{
struct timespec now;
clock_gettime( CLOCK_MONOTONIC, &now );
return ( now.tv_sec * 1e9 + now.tv_nsec ) * (double)(1e-6);
}
int runStatus = -1;
void TBXR_exit(int exitCode)
{
runStatus = exitCode;
}
/*
================================================================================
OpenGL-ES Utility Functions
================================================================================
*/
typedef struct
{
bool multi_view; // GL_OVR_multiview, GL_OVR_multiview2
bool EXT_texture_border_clamp; // GL_EXT_texture_border_clamp, GL_OES_texture_border_clamp
} OpenGLExtensions_t;
OpenGLExtensions_t glExtensions;
static void EglInitExtensions()
{
#if defined EGL_SYNC
eglCreateSyncKHR = (PFNEGLCREATESYNCKHRPROC) eglGetProcAddress( "eglCreateSyncKHR" );
eglDestroySyncKHR = (PFNEGLDESTROYSYNCKHRPROC) eglGetProcAddress( "eglDestroySyncKHR" );
eglClientWaitSyncKHR = (PFNEGLCLIENTWAITSYNCKHRPROC) eglGetProcAddress( "eglClientWaitSyncKHR" );
eglSignalSyncKHR = (PFNEGLSIGNALSYNCKHRPROC) eglGetProcAddress( "eglSignalSyncKHR" );
eglGetSyncAttribKHR = (PFNEGLGETSYNCATTRIBKHRPROC) eglGetProcAddress( "eglGetSyncAttribKHR" );
#endif
const char * allExtensions = (const char *)glGetString( GL_EXTENSIONS );
if ( allExtensions != NULL )
{
glExtensions.multi_view = strstr( allExtensions, "GL_OVR_multiview2" ) &&
strstr( allExtensions, "GL_OVR_multiview_multisampled_render_to_texture" );
glExtensions.EXT_texture_border_clamp = false;//strstr( allExtensions, "GL_EXT_texture_border_clamp" ) ||
//strstr( allExtensions, "GL_OES_texture_border_clamp" );
}
}
static const char * EglErrorString( const EGLint error )
{
switch ( error )
{
case EGL_SUCCESS: return "EGL_SUCCESS";
case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
default: return "unknown";
}
}
static const char * GlFrameBufferStatusString( GLenum status )
{
switch ( status )
{
case GL_FRAMEBUFFER_UNDEFINED: return "GL_FRAMEBUFFER_UNDEFINED";
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: return "GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT";
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: return "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT";
case GL_FRAMEBUFFER_UNSUPPORTED: return "GL_FRAMEBUFFER_UNSUPPORTED";
case GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE: return "GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE";
default: return "unknown";
}
}
/*
================================================================================
ovrEgl
================================================================================
*/
static void ovrEgl_Clear( ovrEgl * egl )
{
egl->MajorVersion = 0;
egl->MinorVersion = 0;
egl->Display = 0;
egl->Config = 0;
egl->TinySurface = EGL_NO_SURFACE;
egl->MainSurface = EGL_NO_SURFACE;
egl->Context = EGL_NO_CONTEXT;
}
static void ovrEgl_CreateContext( ovrEgl * egl, const ovrEgl * shareEgl )
{
if ( egl->Display != 0 )
{
return;
}
egl->Display = eglGetDisplay( EGL_DEFAULT_DISPLAY );
ALOGV( " eglInitialize( Display, &MajorVersion, &MinorVersion )" );
eglInitialize( egl->Display, &egl->MajorVersion, &egl->MinorVersion );
// Do NOT use eglChooseConfig, because the Android EGL code pushes in multisample
// flags in eglChooseConfig if the user has selected the "force 4x MSAA" option in
// settings, and that is completely wasted for our warp target.
const int MAX_CONFIGS = 1024;
EGLConfig configs[MAX_CONFIGS];
EGLint numConfigs = 0;
if ( eglGetConfigs( egl->Display, configs, MAX_CONFIGS, &numConfigs ) == EGL_FALSE )
{
ALOGE( " eglGetConfigs() failed: %s", EglErrorString( eglGetError() ) );
return;
}
const EGLint configAttribs[] =
{
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_ALPHA_SIZE, 8, // need alpha for the multi-pass timewarp compositor
EGL_DEPTH_SIZE, 0,
EGL_STENCIL_SIZE, 0,
EGL_SAMPLES, 0,
EGL_NONE
};
egl->Config = 0;
for ( int i = 0; i < numConfigs; i++ )
{
EGLint value = 0;
eglGetConfigAttrib( egl->Display, configs[i], EGL_RENDERABLE_TYPE, &value );
if ( ( value & EGL_OPENGL_ES3_BIT_KHR ) != EGL_OPENGL_ES3_BIT_KHR )
{
continue;
}
// The pbuffer config also needs to be compatible with normal window rendering
// so it can share textures with the window context.
eglGetConfigAttrib( egl->Display, configs[i], EGL_SURFACE_TYPE, &value );
if ( ( value & ( EGL_WINDOW_BIT | EGL_PBUFFER_BIT ) ) != ( EGL_WINDOW_BIT | EGL_PBUFFER_BIT ) )
{
continue;
}
int j = 0;
for ( ; configAttribs[j] != EGL_NONE; j += 2 )
{
eglGetConfigAttrib( egl->Display, configs[i], configAttribs[j], &value );
if ( value != configAttribs[j + 1] )
{
break;
}
}
if ( configAttribs[j] == EGL_NONE )
{
egl->Config = configs[i];
break;
}
}
if ( egl->Config == 0 )
{
ALOGE( " eglChooseConfig() failed: %s", EglErrorString( eglGetError() ) );
return;
}
EGLint contextAttribs[] =
{
EGL_CONTEXT_CLIENT_VERSION, 3,
EGL_NONE
};
ALOGV( " Context = eglCreateContext( Display, Config, EGL_NO_CONTEXT, contextAttribs )" );
egl->Context = eglCreateContext( egl->Display, egl->Config, ( shareEgl != NULL ) ? shareEgl->Context : EGL_NO_CONTEXT, contextAttribs );
if ( egl->Context == EGL_NO_CONTEXT )
{
ALOGE( " eglCreateContext() failed: %s", EglErrorString( eglGetError() ) );
return;
}
const EGLint surfaceAttribs[] =
{
EGL_WIDTH, 16,
EGL_HEIGHT, 16,
EGL_NONE
};
ALOGV( " TinySurface = eglCreatePbufferSurface( Display, Config, surfaceAttribs )" );
egl->TinySurface = eglCreatePbufferSurface( egl->Display, egl->Config, surfaceAttribs );
if ( egl->TinySurface == EGL_NO_SURFACE )
{
ALOGE( " eglCreatePbufferSurface() failed: %s", EglErrorString( eglGetError() ) );
eglDestroyContext( egl->Display, egl->Context );
egl->Context = EGL_NO_CONTEXT;
return;
}
ALOGV( " eglMakeCurrent( Display, TinySurface, TinySurface, Context )" );
if ( eglMakeCurrent( egl->Display, egl->TinySurface, egl->TinySurface, egl->Context ) == EGL_FALSE )
{
ALOGE( " eglMakeCurrent() failed: %s", EglErrorString( eglGetError() ) );
eglDestroySurface( egl->Display, egl->TinySurface );
eglDestroyContext( egl->Display, egl->Context );
egl->Context = EGL_NO_CONTEXT;
return;
}
}
static void ovrEgl_DestroyContext( ovrEgl * egl )
{
if ( egl->Display != 0 )
{
ALOGE( " eglMakeCurrent( Display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT )" );
if ( eglMakeCurrent( egl->Display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT ) == EGL_FALSE )
{
ALOGE( " eglMakeCurrent() failed: %s", EglErrorString( eglGetError() ) );
}
}
if ( egl->Context != EGL_NO_CONTEXT )
{
ALOGE( " eglDestroyContext( Display, Context )" );
if ( eglDestroyContext( egl->Display, egl->Context ) == EGL_FALSE )
{
ALOGE( " eglDestroyContext() failed: %s", EglErrorString( eglGetError() ) );
}
egl->Context = EGL_NO_CONTEXT;
}
if ( egl->TinySurface != EGL_NO_SURFACE )
{
ALOGE( " eglDestroySurface( Display, TinySurface )" );
if ( eglDestroySurface( egl->Display, egl->TinySurface ) == EGL_FALSE )
{
ALOGE( " eglDestroySurface() failed: %s", EglErrorString( eglGetError() ) );
}
egl->TinySurface = EGL_NO_SURFACE;
}
if ( egl->Display != 0 )
{
ALOGE( " eglTerminate( Display )" );
if ( eglTerminate( egl->Display ) == EGL_FALSE )
{
ALOGE( " eglTerminate() failed: %s", EglErrorString( eglGetError() ) );
}
egl->Display = 0;
}
}
/*
================================================================================
ovrFramebuffer
================================================================================
*/
static void ovrFramebuffer_Clear(ovrFramebuffer* frameBuffer) {
frameBuffer->Width = 0;
frameBuffer->Height = 0;
frameBuffer->Multisamples = 0;
frameBuffer->TextureSwapChainLength = 0;
frameBuffer->TextureSwapChainIndex = 0;
frameBuffer->ColorSwapChain.Handle = XR_NULL_HANDLE;
frameBuffer->ColorSwapChain.Width = 0;
frameBuffer->ColorSwapChain.Height = 0;
frameBuffer->ColorSwapChainImage = NULL;
frameBuffer->DepthBuffers = NULL;
frameBuffer->FrameBuffers = NULL;
}
typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC) (GLenum target, GLsizei samples, GLenum internalformat, GLsizei width, GLsizei height);
typedef void (GL_APIENTRYP PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLsizei samples);
static bool ovrFramebuffer_Create(
XrSession session,
ovrFramebuffer* frameBuffer,
const GLenum colorFormat,
const int width,
const int height,
const int multisamples) {
PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT =
(PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC)eglGetProcAddress(
"glRenderbufferStorageMultisampleEXT");
PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC glFramebufferTexture2DMultisampleEXT =
(PFNGLFRAMEBUFFERTEXTURE2DMULTISAMPLEEXTPROC)eglGetProcAddress(
"glFramebufferTexture2DMultisampleEXT");
frameBuffer->Width = width;
frameBuffer->Height = height;
frameBuffer->Multisamples = multisamples;
XrSwapchainCreateInfo swapChainCreateInfo;
memset(&swapChainCreateInfo, 0, sizeof(swapChainCreateInfo));
swapChainCreateInfo.type = XR_TYPE_SWAPCHAIN_CREATE_INFO;
swapChainCreateInfo.usageFlags = XR_SWAPCHAIN_USAGE_COLOR_ATTACHMENT_BIT;
swapChainCreateInfo.format = colorFormat;
swapChainCreateInfo.sampleCount = 1;
swapChainCreateInfo.width = width;
swapChainCreateInfo.height = height;
swapChainCreateInfo.faceCount = 1;
swapChainCreateInfo.arraySize = 1;
swapChainCreateInfo.mipCount = 1;
frameBuffer->ColorSwapChain.Width = swapChainCreateInfo.width;
frameBuffer->ColorSwapChain.Height = swapChainCreateInfo.height;
// Create the swapchain.
OXR(xrCreateSwapchain(session, &swapChainCreateInfo, &frameBuffer->ColorSwapChain.Handle));
// Get the number of swapchain images.
OXR(xrEnumerateSwapchainImages(
frameBuffer->ColorSwapChain.Handle, 0, &frameBuffer->TextureSwapChainLength, NULL));
// Allocate the swapchain images array.
frameBuffer->ColorSwapChainImage = (XrSwapchainImageOpenGLESKHR*)malloc(
frameBuffer->TextureSwapChainLength * sizeof(XrSwapchainImageOpenGLESKHR));
// Populate the swapchain image array.
for (uint32_t i = 0; i < frameBuffer->TextureSwapChainLength; i++) {
frameBuffer->ColorSwapChainImage[i].type = XR_TYPE_SWAPCHAIN_IMAGE_OPENGL_ES_KHR;
frameBuffer->ColorSwapChainImage[i].next = NULL;
}
OXR(xrEnumerateSwapchainImages(
frameBuffer->ColorSwapChain.Handle,
frameBuffer->TextureSwapChainLength,
&frameBuffer->TextureSwapChainLength,
(XrSwapchainImageBaseHeader*)frameBuffer->ColorSwapChainImage));
frameBuffer->DepthBuffers =
(GLuint*)malloc(frameBuffer->TextureSwapChainLength * sizeof(GLuint));
frameBuffer->FrameBuffers =
(GLuint*)malloc(frameBuffer->TextureSwapChainLength * sizeof(GLuint));
for (uint32_t i = 0; i < frameBuffer->TextureSwapChainLength; i++) {
// Create the color buffer texture.
const GLuint colorTexture = frameBuffer->ColorSwapChainImage[i].image;
GLfloat borderColor[] = {0.0f, 0.0f, 0.0f, 0.0f};
GLenum colorTextureTarget = GL_TEXTURE_2D;
GL(glTexParameterfv(colorTextureTarget, GL_TEXTURE_BORDER_COLOR, borderColor));
GL(glBindTexture(colorTextureTarget, colorTexture));
GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE));
GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE));
GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_MIN_FILTER, GL_LINEAR));
GL(glTexParameteri(colorTextureTarget, GL_TEXTURE_MAG_FILTER, GL_LINEAR));
GL(glBindTexture(colorTextureTarget, 0));
if (glRenderbufferStorageMultisampleEXT != NULL &&
glFramebufferTexture2DMultisampleEXT != NULL) {
// Create multisampled depth buffer.
GL(glGenRenderbuffers(1, &frameBuffer->DepthBuffers[i]));
GL(glBindRenderbuffer(GL_RENDERBUFFER, frameBuffer->DepthBuffers[i]));
GL(glRenderbufferStorageMultisampleEXT(
GL_RENDERBUFFER, multisamples, GL_DEPTH_COMPONENT24, width, height));
GL(glBindRenderbuffer(GL_RENDERBUFFER, 0));
// Create the frame buffer.
// NOTE: glFramebufferTexture2DMultisampleEXT only works with GL_FRAMEBUFFER.
GL(glGenFramebuffers(1, &frameBuffer->FrameBuffers[i]));
GL(glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer->FrameBuffers[i]));
GL(glFramebufferTexture2DMultisampleEXT(
GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D,
colorTexture,
0,
multisamples));
GL(glFramebufferRenderbuffer(
GL_FRAMEBUFFER,
GL_DEPTH_ATTACHMENT,
GL_RENDERBUFFER,
frameBuffer->DepthBuffers[i]));
GL(GLenum renderFramebufferStatus = glCheckFramebufferStatus(GL_FRAMEBUFFER));
GL(glBindFramebuffer(GL_FRAMEBUFFER, 0));
if (renderFramebufferStatus != GL_FRAMEBUFFER_COMPLETE) {
ALOGE(
"Incomplete frame buffer object: %s",
GlFrameBufferStatusString(renderFramebufferStatus));
return false;
}
} else {
return false;
}
}
return true;
}
void ovrFramebuffer_Destroy(ovrFramebuffer* frameBuffer) {
GL(glDeleteFramebuffers(frameBuffer->TextureSwapChainLength, frameBuffer->FrameBuffers));
GL(glDeleteRenderbuffers(frameBuffer->TextureSwapChainLength, frameBuffer->DepthBuffers));
OXR(xrDestroySwapchain(frameBuffer->ColorSwapChain.Handle));
free(frameBuffer->ColorSwapChainImage);
free(frameBuffer->DepthBuffers);
free(frameBuffer->FrameBuffers);
ovrFramebuffer_Clear(frameBuffer);
}
void ovrFramebuffer_SetCurrent(ovrFramebuffer* frameBuffer) {
GL(glBindFramebuffer(
GL_DRAW_FRAMEBUFFER, frameBuffer->FrameBuffers[frameBuffer->TextureSwapChainIndex]));
}
void ovrFramebuffer_SetNone() {
GL(glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0));
}
void ovrFramebuffer_Resolve(ovrFramebuffer* frameBuffer) {
// Discard the depth buffer, so the tiler won't need to write it back out to memory.
const GLenum depthAttachment[1] = {GL_DEPTH_ATTACHMENT};
glInvalidateFramebuffer(GL_DRAW_FRAMEBUFFER, 1, depthAttachment);
// We now let the resolve happen implicitly.
}
void ovrFramebuffer_Acquire(ovrFramebuffer* frameBuffer) {
// Acquire the swapchain image
XrSwapchainImageAcquireInfo acquireInfo = {XR_TYPE_SWAPCHAIN_IMAGE_ACQUIRE_INFO, NULL};
OXR(xrAcquireSwapchainImage(
frameBuffer->ColorSwapChain.Handle, &acquireInfo, &frameBuffer->TextureSwapChainIndex));
XrSwapchainImageWaitInfo waitInfo;
waitInfo.type = XR_TYPE_SWAPCHAIN_IMAGE_WAIT_INFO;
waitInfo.next = NULL;
waitInfo.timeout = 1000000000; /* timeout in nanoseconds */
XrResult res = xrWaitSwapchainImage(frameBuffer->ColorSwapChain.Handle, &waitInfo);
int i = 0;
while (res == XR_TIMEOUT_EXPIRED) {
res = xrWaitSwapchainImage(frameBuffer->ColorSwapChain.Handle, &waitInfo);
i++;
ALOGV(
" Retry xrWaitSwapchainImage %d times due to XR_TIMEOUT_EXPIRED (duration %f seconds)",
i,
waitInfo.timeout * (1E-9));
}
}
void ovrFramebuffer_Release(ovrFramebuffer* frameBuffer) {
XrSwapchainImageReleaseInfo releaseInfo = {XR_TYPE_SWAPCHAIN_IMAGE_RELEASE_INFO, NULL};
OXR(xrReleaseSwapchainImage(frameBuffer->ColorSwapChain.Handle, &releaseInfo));
}
/*
================================================================================
ovrRenderer
================================================================================
*/
void ovrRenderer_Clear(ovrRenderer* renderer) {
for (int eye = 0; eye < ovrMaxNumEyes; eye++) {
ovrFramebuffer_Clear(&renderer->FrameBuffer[eye]);
}
}
void ovrRenderer_Create(
XrSession session,
ovrRenderer* renderer,
int suggestedEyeTextureWidth,
int suggestedEyeTextureHeight) {
// Create the frame buffers.
for (int eye = 0; eye < ovrMaxNumEyes; eye++) {
ovrFramebuffer_Create(
session,
&renderer->FrameBuffer[eye],
GL_SRGB8_ALPHA8,
suggestedEyeTextureWidth,
suggestedEyeTextureHeight,
NUM_MULTI_SAMPLES);
}
}
void ovrRenderer_Destroy(ovrRenderer* renderer) {
for (int eye = 0; eye < ovrMaxNumEyes; eye++) {
ovrFramebuffer_Destroy(&renderer->FrameBuffer[eye]);
}
}
/*
================================================================================
ovrMatrix4f
================================================================================
*/
ovrMatrix4f ovrMatrix4f_CreateFromQuaternion(const XrQuaternionf* q) {
const float ww = q->w * q->w;
const float xx = q->x * q->x;
const float yy = q->y * q->y;
const float zz = q->z * q->z;
ovrMatrix4f out;
out.M[0][0] = ww + xx - yy - zz;
out.M[0][1] = 2 * (q->x * q->y - q->w * q->z);
out.M[0][2] = 2 * (q->x * q->z + q->w * q->y);
out.M[0][3] = 0;
out.M[1][0] = 2 * (q->x * q->y + q->w * q->z);
out.M[1][1] = ww - xx + yy - zz;
out.M[1][2] = 2 * (q->y * q->z - q->w * q->x);
out.M[1][3] = 0;
out.M[2][0] = 2 * (q->x * q->z - q->w * q->y);
out.M[2][1] = 2 * (q->y * q->z + q->w * q->x);
out.M[2][2] = ww - xx - yy + zz;
out.M[2][3] = 0;
out.M[3][0] = 0;
out.M[3][1] = 0;
out.M[3][2] = 0;
out.M[3][3] = 1;
return out;
}
/// Use left-multiplication to accumulate transformations.
ovrMatrix4f ovrMatrix4f_Multiply(const ovrMatrix4f* a, const ovrMatrix4f* b) {
ovrMatrix4f out;
out.M[0][0] = a->M[0][0] * b->M[0][0] + a->M[0][1] * b->M[1][0] + a->M[0][2] * b->M[2][0] +
a->M[0][3] * b->M[3][0];
out.M[1][0] = a->M[1][0] * b->M[0][0] + a->M[1][1] * b->M[1][0] + a->M[1][2] * b->M[2][0] +
a->M[1][3] * b->M[3][0];
out.M[2][0] = a->M[2][0] * b->M[0][0] + a->M[2][1] * b->M[1][0] + a->M[2][2] * b->M[2][0] +
a->M[2][3] * b->M[3][0];
out.M[3][0] = a->M[3][0] * b->M[0][0] + a->M[3][1] * b->M[1][0] + a->M[3][2] * b->M[2][0] +
a->M[3][3] * b->M[3][0];
out.M[0][1] = a->M[0][0] * b->M[0][1] + a->M[0][1] * b->M[1][1] + a->M[0][2] * b->M[2][1] +
a->M[0][3] * b->M[3][1];
out.M[1][1] = a->M[1][0] * b->M[0][1] + a->M[1][1] * b->M[1][1] + a->M[1][2] * b->M[2][1] +
a->M[1][3] * b->M[3][1];
out.M[2][1] = a->M[2][0] * b->M[0][1] + a->M[2][1] * b->M[1][1] + a->M[2][2] * b->M[2][1] +
a->M[2][3] * b->M[3][1];
out.M[3][1] = a->M[3][0] * b->M[0][1] + a->M[3][1] * b->M[1][1] + a->M[3][2] * b->M[2][1] +
a->M[3][3] * b->M[3][1];
out.M[0][2] = a->M[0][0] * b->M[0][2] + a->M[0][1] * b->M[1][2] + a->M[0][2] * b->M[2][2] +
a->M[0][3] * b->M[3][2];
out.M[1][2] = a->M[1][0] * b->M[0][2] + a->M[1][1] * b->M[1][2] + a->M[1][2] * b->M[2][2] +
a->M[1][3] * b->M[3][2];
out.M[2][2] = a->M[2][0] * b->M[0][2] + a->M[2][1] * b->M[1][2] + a->M[2][2] * b->M[2][2] +
a->M[2][3] * b->M[3][2];
out.M[3][2] = a->M[3][0] * b->M[0][2] + a->M[3][1] * b->M[1][2] + a->M[3][2] * b->M[2][2] +
a->M[3][3] * b->M[3][2];
out.M[0][3] = a->M[0][0] * b->M[0][3] + a->M[0][1] * b->M[1][3] + a->M[0][2] * b->M[2][3] +
a->M[0][3] * b->M[3][3];
out.M[1][3] = a->M[1][0] * b->M[0][3] + a->M[1][1] * b->M[1][3] + a->M[1][2] * b->M[2][3] +
a->M[1][3] * b->M[3][3];
out.M[2][3] = a->M[2][0] * b->M[0][3] + a->M[2][1] * b->M[1][3] + a->M[2][2] * b->M[2][3] +
a->M[2][3] * b->M[3][3];
out.M[3][3] = a->M[3][0] * b->M[0][3] + a->M[3][1] * b->M[1][3] + a->M[3][2] * b->M[2][3] +
a->M[3][3] * b->M[3][3];
return out;
}
ovrMatrix4f ovrMatrix4f_CreateRotation(const float radiansX, const float radiansY, const float radiansZ) {
const float sinX = sinf(radiansX);
const float cosX = cosf(radiansX);
const ovrMatrix4f rotationX = {
{{1, 0, 0, 0}, {0, cosX, -sinX, 0}, {0, sinX, cosX, 0}, {0, 0, 0, 1}}};
const float sinY = sinf(radiansY);
const float cosY = cosf(radiansY);
const ovrMatrix4f rotationY = {
{{cosY, 0, sinY, 0}, {0, 1, 0, 0}, {-sinY, 0, cosY, 0}, {0, 0, 0, 1}}};
const float sinZ = sinf(radiansZ);
const float cosZ = cosf(radiansZ);
const ovrMatrix4f rotationZ = {
{{cosZ, -sinZ, 0, 0}, {sinZ, cosZ, 0, 0}, {0, 0, 1, 0}, {0, 0, 0, 1}}};
const ovrMatrix4f rotationXY = ovrMatrix4f_Multiply(&rotationY, &rotationX);
return ovrMatrix4f_Multiply(&rotationZ, &rotationXY);
}
XrVector4f XrVector4f_MultiplyMatrix4f(const ovrMatrix4f* a, const XrVector4f* v) {
XrVector4f out;
out.x = a->M[0][0] * v->x + a->M[0][1] * v->y + a->M[0][2] * v->z + a->M[0][3] * v->w;
out.y = a->M[1][0] * v->x + a->M[1][1] * v->y + a->M[1][2] * v->z + a->M[1][3] * v->w;
out.z = a->M[2][0] * v->x + a->M[2][1] * v->y + a->M[2][2] * v->z + a->M[2][3] * v->w;
out.w = a->M[3][0] * v->x + a->M[3][1] * v->y + a->M[3][2] * v->z + a->M[3][3] * v->w;
return out;
}
#ifndef EPSILON
#define EPSILON 0.001f
#endif
static XrVector3f normalizeVec(XrVector3f vec) {
//NOTE: leave w-component untouched
//@@const float EPSILON = 0.000001f;
float xxyyzz = vec.x*vec.x + vec.y*vec.y + vec.z*vec.z;
//@@if(xxyyzz < EPSILON)
//@@ return *this; // do nothing if it is zero vector
//float invLength = invSqrt(xxyyzz);
XrVector3f result;
float invLength = 1.0f / sqrtf(xxyyzz);
result.x = vec.x * invLength;
result.y = vec.y * invLength;
result.z = vec.z * invLength;
return result;
}
void NormalizeAngles(vec3_t angles)
{
while (angles[0] >= 90) angles[0] -= 180;
while (angles[1] >= 180) angles[1] -= 360;
while (angles[2] >= 180) angles[2] -= 360;
while (angles[0] < -90) angles[0] += 180;
while (angles[1] < -180) angles[1] += 360;
while (angles[2] < -180) angles[2] += 360;
}
void GetAnglesFromVectors(const XrVector3f forward, const XrVector3f right, const XrVector3f up, vec3_t angles)
{
float sr, sp, sy, cr, cp, cy;
sp = -forward.z;
float cp_x_cy = forward.x;
float cp_x_sy = forward.y;
float cp_x_sr = -right.z;
float cp_x_cr = up.z;
float yaw = atan2(cp_x_sy, cp_x_cy);
float roll = atan2(cp_x_sr, cp_x_cr);
cy = cos(yaw);
sy = sin(yaw);
cr = cos(roll);
sr = sin(roll);
if (fabs(cy) > EPSILON)
{
cp = cp_x_cy / cy;
}
else if (fabs(sy) > EPSILON)
{
cp = cp_x_sy / sy;
}
else if (fabs(sr) > EPSILON)
{
cp = cp_x_sr / sr;
}
else if (fabs(cr) > EPSILON)
{
cp = cp_x_cr / cr;
}
else
{
cp = cos(asin(sp));
}
float pitch = atan2(sp, cp);
angles[0] = pitch / (M_PI*2.f / 360.f);
angles[1] = yaw / (M_PI*2.f / 360.f);
angles[2] = roll / (M_PI*2.f / 360.f);
NormalizeAngles(angles);
}
void QuatToYawPitchRoll(XrQuaternionf q, vec3_t rotation, vec3_t out) {
ovrMatrix4f mat = ovrMatrix4f_CreateFromQuaternion( &q );
if (rotation[0] != 0.0f || rotation[1] != 0.0f || rotation[2] != 0.0f)
{
ovrMatrix4f rot = ovrMatrix4f_CreateRotation(DEG2RAD(rotation[0]), DEG2RAD(rotation[1]), DEG2RAD(rotation[2]));
mat = ovrMatrix4f_Multiply(&mat, &rot);
}
XrVector4f v1 = {0, 0, -1, 0};
XrVector4f v2 = {1, 0, 0, 0};
XrVector4f v3 = {0, 1, 0, 0};
XrVector4f forwardInVRSpace = XrVector4f_MultiplyMatrix4f(&mat, &v1);
XrVector4f rightInVRSpace = XrVector4f_MultiplyMatrix4f(&mat, &v2);
XrVector4f upInVRSpace = XrVector4f_MultiplyMatrix4f(&mat, &v3);
XrVector3f forward = {-forwardInVRSpace.z, -forwardInVRSpace.x, forwardInVRSpace.y};
XrVector3f right = {-rightInVRSpace.z, -rightInVRSpace.x, rightInVRSpace.y};
XrVector3f up = {-upInVRSpace.z, -upInVRSpace.x, upInVRSpace.y};
XrVector3f forwardNormal = normalizeVec(forward);
XrVector3f rightNormal = normalizeVec(right);
XrVector3f upNormal = normalizeVec(up);
GetAnglesFromVectors(forwardNormal, rightNormal, upNormal, out);
}
/*
========================
TBXR_Vibrate
========================
*/
void TBXR_Vibrate( int duration, int chan, float intensity );
/*
================================================================================
ovrRenderThread
================================================================================
*/
void ovrApp_Clear(ovrApp* app) {
app->Focused = false;
app->Instance = XR_NULL_HANDLE;
app->Session = XR_NULL_HANDLE;
memset(&app->ViewportConfig, 0, sizeof(XrViewConfigurationProperties));
memset(&app->ViewConfigurationView, 0, ovrMaxNumEyes * sizeof(XrViewConfigurationView));
app->SystemId = XR_NULL_SYSTEM_ID;
app->HeadSpace = XR_NULL_HANDLE;
app->StageSpace = XR_NULL_HANDLE;
app->FakeStageSpace = XR_NULL_HANDLE;
app->CurrentSpace = XR_NULL_HANDLE;
app->SessionActive = false;
app->SupportedDisplayRefreshRates = NULL;
app->RequestedDisplayRefreshRateIndex = 0;
app->NumSupportedDisplayRefreshRates = 0;
app->pfnGetDisplayRefreshRate = NULL;
app->pfnRequestDisplayRefreshRate = NULL;
app->SwapInterval = 1;
memset(app->Layers, 0, sizeof(xrCompositorLayer_Union) * ovrMaxLayerCount);
app->LayerCount = 0;
app->MainThreadTid = 0;
app->RenderThreadTid = 0;
ovrEgl_Clear( &app->Egl );
ovrRenderer_Clear(&app->Renderer);
}
void ovrApp_HandleSessionStateChanges(ovrApp* app, XrSessionState state) {
if (state == XR_SESSION_STATE_READY) {
assert(app->SessionActive == false);
XrSessionBeginInfo sessionBeginInfo;
memset(&sessionBeginInfo, 0, sizeof(sessionBeginInfo));
sessionBeginInfo.type = XR_TYPE_SESSION_BEGIN_INFO;
sessionBeginInfo.next = NULL;
sessionBeginInfo.primaryViewConfigurationType = app->ViewportConfig.viewConfigurationType;
XrResult result;
OXR(result = xrBeginSession(app->Session, &sessionBeginInfo));
app->SessionActive = (result == XR_SUCCESS);
// Set session state once we have entered VR mode and have a valid session object.
if (app->SessionActive)
{
XrPerfSettingsLevelEXT cpuPerfLevel = XR_PERF_SETTINGS_LEVEL_BOOST_EXT;
XrPerfSettingsLevelEXT gpuPerfLevel = XR_PERF_SETTINGS_LEVEL_BOOST_EXT;
PFN_xrPerfSettingsSetPerformanceLevelEXT pfnPerfSettingsSetPerformanceLevelEXT = NULL;
OXR(xrGetInstanceProcAddr(
app->Instance,
"xrPerfSettingsSetPerformanceLevelEXT",
(PFN_xrVoidFunction * )(&pfnPerfSettingsSetPerformanceLevelEXT)));
OXR(pfnPerfSettingsSetPerformanceLevelEXT(
app->Session, XR_PERF_SETTINGS_DOMAIN_CPU_EXT, cpuPerfLevel));
OXR(pfnPerfSettingsSetPerformanceLevelEXT(
app->Session, XR_PERF_SETTINGS_DOMAIN_GPU_EXT, gpuPerfLevel));
#ifdef META_QUEST
PFN_xrSetAndroidApplicationThreadKHR pfnSetAndroidApplicationThreadKHR = NULL;
OXR(xrGetInstanceProcAddr(
app->Instance,
"xrSetAndroidApplicationThreadKHR",
(PFN_xrVoidFunction * )(&pfnSetAndroidApplicationThreadKHR)));
OXR(pfnSetAndroidApplicationThreadKHR(
app->Session, XR_ANDROID_THREAD_TYPE_APPLICATION_MAIN_KHR, app->MainThreadTid));
OXR(pfnSetAndroidApplicationThreadKHR(
app->Session, XR_ANDROID_THREAD_TYPE_RENDERER_MAIN_KHR, app->RenderThreadTid));
#endif
}
} else if (state == XR_SESSION_STATE_STOPPING) {
assert(app->SessionActive);
OXR(xrEndSession(app->Session));
app->SessionActive = false;
}
}
GLboolean ovrApp_HandleXrEvents(ovrApp* app) {
XrEventDataBuffer eventDataBuffer = {};
GLboolean recenter = GL_FALSE;
// Poll for events
for (;;) {
XrEventDataBaseHeader* baseEventHeader = (XrEventDataBaseHeader*)(&eventDataBuffer);
baseEventHeader->type = XR_TYPE_EVENT_DATA_BUFFER;
baseEventHeader->next = NULL;
XrResult r;
OXR(r = xrPollEvent(app->Instance, &eventDataBuffer));
if (r != XR_SUCCESS) {
break;
}
switch (baseEventHeader->type) {
case XR_TYPE_EVENT_DATA_EVENTS_LOST:
ALOGV("xrPollEvent: received XR_TYPE_EVENT_DATA_EVENTS_LOST event");
break;
case XR_TYPE_EVENT_DATA_INSTANCE_LOSS_PENDING: {
const XrEventDataInstanceLossPending* instance_loss_pending_event =
(XrEventDataInstanceLossPending*)(baseEventHeader);
ALOGV(
"xrPollEvent: received XR_TYPE_EVENT_DATA_INSTANCE_LOSS_PENDING event: time %f",
FromXrTime(instance_loss_pending_event->lossTime));
} break;
case XR_TYPE_EVENT_DATA_INTERACTION_PROFILE_CHANGED:
ALOGV("xrPollEvent: received XR_TYPE_EVENT_DATA_INTERACTION_PROFILE_CHANGED event");
break;
case XR_TYPE_EVENT_DATA_PERF_SETTINGS_EXT: {
const XrEventDataPerfSettingsEXT* perf_settings_event =
(XrEventDataPerfSettingsEXT*)(baseEventHeader);
ALOGV(
"xrPollEvent: received XR_TYPE_EVENT_DATA_PERF_SETTINGS_EXT event: type %d subdomain %d : level %d -> level %d",
perf_settings_event->type,
perf_settings_event->subDomain,
perf_settings_event->fromLevel,
perf_settings_event->toLevel);
} break;
#ifdef META_QUEST
case XR_TYPE_EVENT_DATA_DISPLAY_REFRESH_RATE_CHANGED_FB: {
const XrEventDataDisplayRefreshRateChangedFB* refresh_rate_changed_event =
(XrEventDataDisplayRefreshRateChangedFB*)(baseEventHeader);
ALOGV(
"xrPollEvent: received XR_TYPE_EVENT_DATA_DISPLAY_REFRESH_RATE_CHANGED_FB event: fromRate %f -> toRate %f",
refresh_rate_changed_event->fromDisplayRefreshRate,
refresh_rate_changed_event->toDisplayRefreshRate);
} break;
#endif
case XR_TYPE_EVENT_DATA_REFERENCE_SPACE_CHANGE_PENDING: {
XrEventDataReferenceSpaceChangePending* ref_space_change_event =
(XrEventDataReferenceSpaceChangePending*)(baseEventHeader);
ALOGV(
"xrPollEvent: received XR_TYPE_EVENT_DATA_REFERENCE_SPACE_CHANGE_PENDING event: changed space: %d for session %p at time %f",
ref_space_change_event->referenceSpaceType,
(void*)ref_space_change_event->session,
FromXrTime(ref_space_change_event->changeTime));
recenter = GL_TRUE;
} break;
case XR_TYPE_EVENT_DATA_SESSION_STATE_CHANGED: {
const XrEventDataSessionStateChanged* session_state_changed_event =
(XrEventDataSessionStateChanged*)(baseEventHeader);
ALOGV(
"xrPollEvent: received XR_TYPE_EVENT_DATA_SESSION_STATE_CHANGED: %d for session %p at time %f",
session_state_changed_event->state,
(void*)session_state_changed_event->session,
FromXrTime(session_state_changed_event->time));
switch (session_state_changed_event->state) {
case XR_SESSION_STATE_FOCUSED:
app->Focused = true;
break;
case XR_SESSION_STATE_VISIBLE:
app->Focused = false;
break;
case XR_SESSION_STATE_READY:
case XR_SESSION_STATE_STOPPING:
ovrApp_HandleSessionStateChanges(app, session_state_changed_event->state);
break;
default:
break;
}
} break;
default:
ALOGV("xrPollEvent: Unknown event");
break;
}
}
return recenter;
}
void ovrAppThread_Create( ovrAppThread * appThread, JNIEnv * env, jobject activityObject, jclass activityClass )
{
(*env)->GetJavaVM( env, &appThread->JavaVm );
appThread->ActivityObject = (*env)->NewGlobalRef( env, activityObject );
appThread->ActivityClass = (*env)->NewGlobalRef( env, activityClass );
appThread->Thread = 0;
appThread->NativeWindow = NULL;
surfaceMessageQueue_Create(&appThread->MessageQueue);
const int createErr = pthread_create( &appThread->Thread, NULL, AppThreadFunction, appThread );
if ( createErr != 0 )
{
ALOGE( "pthread_create returned %i", createErr );
}
}
void ovrAppThread_Destroy( ovrAppThread * appThread, JNIEnv * env )
{
pthread_join( appThread->Thread, NULL );
(*env)->DeleteGlobalRef( env, appThread->ActivityObject );
(*env)->DeleteGlobalRef( env, appThread->ActivityClass );
surfaceMessageQueue_Destroy(&appThread->MessageQueue);
}
/*
================================================================================
surfaceMessageQueue
================================================================================
*/
void surfaceMessage_Init(srufaceMessage * message, const int id, const int wait )
{
message->Id = id;
message->Wait = (ovrMQWait)wait;
memset( message->Parms, 0, sizeof( message->Parms ) );
}
void surfaceMessage_SetPointerParm(srufaceMessage * message, int index, void * ptr ) { *(void **)&message->Parms[index] = ptr; }
void * surfaceMessage_GetPointerParm(srufaceMessage * message, int index ) { return *(void **)&message->Parms[index]; }
void surfaceMessageQueue_Create(surfaceMessageQueue * messageQueue )
{
messageQueue->Head = 0;
messageQueue->Tail = 0;
messageQueue->Wait = MQ_WAIT_NONE;
messageQueue->EnabledFlag = false;
messageQueue->PostedFlag = false;
messageQueue->ReceivedFlag = false;
messageQueue->ProcessedFlag = false;
pthread_mutexattr_t attr;
pthread_mutexattr_init( &attr );
pthread_mutexattr_settype( &attr, PTHREAD_MUTEX_ERRORCHECK );
pthread_mutex_init( &messageQueue->Mutex, &attr );
pthread_mutexattr_destroy( &attr );
pthread_cond_init( &messageQueue->PostedCondition, NULL );
pthread_cond_init( &messageQueue->ReceivedCondition, NULL );
pthread_cond_init( &messageQueue->ProcessedCondition, NULL );
}
void surfaceMessageQueue_Destroy(surfaceMessageQueue * messageQueue )
{
pthread_mutex_destroy( &messageQueue->Mutex );
pthread_cond_destroy( &messageQueue->PostedCondition );
pthread_cond_destroy( &messageQueue->ReceivedCondition );
pthread_cond_destroy( &messageQueue->ProcessedCondition );
}
void surfaceMessageQueue_Enable(surfaceMessageQueue * messageQueue, const bool set )
{
messageQueue->EnabledFlag = set;
}
void surfaceMessageQueue_PostMessage(surfaceMessageQueue * messageQueue, const srufaceMessage * message )
{
if ( !messageQueue->EnabledFlag )
{
return;
}
while ( messageQueue->Tail - messageQueue->Head >= MAX_MESSAGES )
{
usleep( 1000 );
}
pthread_mutex_lock( &messageQueue->Mutex );
messageQueue->Messages[messageQueue->Tail & ( MAX_MESSAGES - 1 )] = *message;
messageQueue->Tail++;
messageQueue->PostedFlag = true;
pthread_cond_broadcast( &messageQueue->PostedCondition );
if ( message->Wait == MQ_WAIT_RECEIVED )
{
while ( !messageQueue->ReceivedFlag )
{
pthread_cond_wait( &messageQueue->ReceivedCondition, &messageQueue->Mutex );
}
messageQueue->ReceivedFlag = false;
}
else if ( message->Wait == MQ_WAIT_PROCESSED )
{
while ( !messageQueue->ProcessedFlag )
{
pthread_cond_wait( &messageQueue->ProcessedCondition, &messageQueue->Mutex );
}
messageQueue->ProcessedFlag = false;
}
pthread_mutex_unlock( &messageQueue->Mutex );
}
static void ovrMessageQueue_SleepUntilMessage(surfaceMessageQueue * messageQueue )
{
if ( messageQueue->Wait == MQ_WAIT_PROCESSED )
{
messageQueue->ProcessedFlag = true;
pthread_cond_broadcast( &messageQueue->ProcessedCondition );
messageQueue->Wait = MQ_WAIT_NONE;
}
pthread_mutex_lock( &messageQueue->Mutex );
if ( messageQueue->Tail > messageQueue->Head )
{
pthread_mutex_unlock( &messageQueue->Mutex );
return;
}
while ( !messageQueue->PostedFlag )
{
pthread_cond_wait( &messageQueue->PostedCondition, &messageQueue->Mutex );
}
messageQueue->PostedFlag = false;
pthread_mutex_unlock( &messageQueue->Mutex );
}
static bool surfaceMessageQueue_GetNextMessage(surfaceMessageQueue * messageQueue, srufaceMessage * message, bool waitForMessages )
{
if ( messageQueue->Wait == MQ_WAIT_PROCESSED )
{
messageQueue->ProcessedFlag = true;
pthread_cond_broadcast( &messageQueue->ProcessedCondition );
messageQueue->Wait = MQ_WAIT_NONE;
}
if ( waitForMessages )
{
ovrMessageQueue_SleepUntilMessage( messageQueue );
}
pthread_mutex_lock( &messageQueue->Mutex );
if ( messageQueue->Tail <= messageQueue->Head )
{
pthread_mutex_unlock( &messageQueue->Mutex );
return false;
}
*message = messageQueue->Messages[messageQueue->Head & ( MAX_MESSAGES - 1 )];
messageQueue->Head++;
pthread_mutex_unlock( &messageQueue->Mutex );
if ( message->Wait == MQ_WAIT_RECEIVED )
{
messageQueue->ReceivedFlag = true;
pthread_cond_broadcast( &messageQueue->ReceivedCondition );
}
else if ( message->Wait == MQ_WAIT_PROCESSED )
{
messageQueue->Wait = MQ_WAIT_PROCESSED;
}
return true;
}
ovrAppThread * gAppThread = NULL;
ovrApp gAppState;
ovrJava java;
bool destroyed = false;
void TBXR_GetScreenRes(int *width, int *height)
{
*width = gAppState.Width;
*height = gAppState.Height;
}
XrInstance TBXR_GetXrInstance() {
return gAppState.Instance;
}
static void TBXR_ProcessMessageQueue() {
for ( ; ; )
{
srufaceMessage message;
if ( !surfaceMessageQueue_GetNextMessage(&gAppThread->MessageQueue, &message, false) )
{
break;
}
switch ( message.Id )
{
case MESSAGE_ON_CREATE:
{
break;
}
case MESSAGE_ON_START:
{
break;
}
case MESSAGE_ON_RESUME:
{
//If we get here, then user has opted not to quit
gAppState.Resumed = true;
break;
}
case MESSAGE_ON_PAUSE:
{
gAppState.Resumed = false;
break;
}
case MESSAGE_ON_STOP:
{
break;
}
case MESSAGE_ON_DESTROY:
{
gAppState.NativeWindow = NULL;
destroyed = true;
//shutdown = true;
break;
}
case MESSAGE_ON_SURFACE_CREATED: { gAppState.NativeWindow = (ANativeWindow *) surfaceMessage_GetPointerParm(
&message, 0); break; }
case MESSAGE_ON_SURFACE_DESTROYED: { gAppState.NativeWindow = NULL; break; }
}
}
}
void ovrTrackedController_Clear(ovrTrackedController* controller) {
controller->Active = false;
controller->Pose = XrPosef_Identity();
}
void TBXR_InitialiseResolution()
{
// Enumerate the viewport configurations.
uint32_t viewportConfigTypeCount = 0;
OXR(xrEnumerateViewConfigurations(
gAppState.Instance, gAppState.SystemId, 0, &viewportConfigTypeCount, NULL));
XrViewConfigurationType* viewportConfigurationTypes =
(XrViewConfigurationType*)malloc(viewportConfigTypeCount * sizeof(XrViewConfigurationType));
OXR(xrEnumerateViewConfigurations(
gAppState.Instance,
gAppState.SystemId,
viewportConfigTypeCount,
&viewportConfigTypeCount,
viewportConfigurationTypes));
ALOGV("Available Viewport Configuration Types: %d", viewportConfigTypeCount);
for (uint32_t i = 0; i < viewportConfigTypeCount; i++) {
const XrViewConfigurationType viewportConfigType = viewportConfigurationTypes[i];
ALOGV(
"Viewport configuration type %d : %s",
viewportConfigType,
viewportConfigType == XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO ? "Selected" : "");
XrViewConfigurationProperties viewportConfig;
viewportConfig.type = XR_TYPE_VIEW_CONFIGURATION_PROPERTIES;
OXR(xrGetViewConfigurationProperties(
gAppState.Instance, gAppState.SystemId, viewportConfigType, &viewportConfig));
ALOGV(
"FovMutable=%s ConfigurationType %d",
viewportConfig.fovMutable ? "true" : "false",
viewportConfig.viewConfigurationType);
uint32_t viewCount;
OXR(xrEnumerateViewConfigurationViews(
gAppState.Instance, gAppState.SystemId, viewportConfigType, 0, &viewCount, NULL));
if (viewCount > 0) {
XrViewConfigurationView* elements =
(XrViewConfigurationView*)malloc(viewCount * sizeof(XrViewConfigurationView));
for (uint32_t e = 0; e < viewCount; e++) {
elements[e].type = XR_TYPE_VIEW_CONFIGURATION_VIEW;
elements[e].next = NULL;
}
OXR(xrEnumerateViewConfigurationViews(
gAppState.Instance,
gAppState.SystemId,
viewportConfigType,
viewCount,
&viewCount,
elements));
// Cache the view config properties for the selected config type.
if (viewportConfigType == XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO) {
assert(viewCount == ovrMaxNumEyes);
for (uint32_t e = 0; e < viewCount; e++) {
gAppState.ViewConfigurationView[e] = elements[e];
}
}
free(elements);
} else {
ALOGE("Empty viewport configuration type: %d", viewCount);
}
}
free(viewportConfigurationTypes);
//Shortcut to width and height
gAppState.Width = gAppState.ViewConfigurationView[0].recommendedImageRectWidth;
gAppState.Height = gAppState.ViewConfigurationView[0].recommendedImageRectHeight;
}
void TBXR_EnterVR( ) {
if (gAppState.Session) {
//Com_Printf("TBXR_EnterVR called with existing session");
return;
}
// Create the OpenXR Session.
XrGraphicsBindingOpenGLESAndroidKHR graphicsBindingAndroidGLES = {};
graphicsBindingAndroidGLES.type = XR_TYPE_GRAPHICS_BINDING_OPENGL_ES_ANDROID_KHR;
graphicsBindingAndroidGLES.next = NULL;
graphicsBindingAndroidGLES.display = eglGetCurrentDisplay();
graphicsBindingAndroidGLES.config = eglGetCurrentSurface(EGL_DRAW);
graphicsBindingAndroidGLES.context = eglGetCurrentContext();
XrSessionCreateInfo sessionCreateInfo = {};
memset(&sessionCreateInfo, 0, sizeof(sessionCreateInfo));
sessionCreateInfo.type = XR_TYPE_SESSION_CREATE_INFO;
sessionCreateInfo.next = &graphicsBindingAndroidGLES;
sessionCreateInfo.createFlags = 0;
sessionCreateInfo.systemId = gAppState.SystemId;
XrResult initResult;
OXR(initResult = xrCreateSession(gAppState.Instance, &sessionCreateInfo, &gAppState.Session));
if (initResult != XR_SUCCESS) {
ALOGE("Failed to create XR session: %d.", initResult);
exit(1);
}
// Create a space to the first path
XrReferenceSpaceCreateInfo spaceCreateInfo = {};
spaceCreateInfo.type = XR_TYPE_REFERENCE_SPACE_CREATE_INFO;
spaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_VIEW;
spaceCreateInfo.poseInReferenceSpace.orientation.w = 1.0f;
OXR(xrCreateReferenceSpace(gAppState.Session, &spaceCreateInfo, &gAppState.HeadSpace));
}
void TBXR_LeaveVR( ) {
if (gAppState.Session) {
OXR(xrDestroySpace(gAppState.HeadSpace));
// StageSpace is optional.
if (gAppState.StageSpace != XR_NULL_HANDLE) {
OXR(xrDestroySpace(gAppState.StageSpace));
}
OXR(xrDestroySpace(gAppState.FakeStageSpace));
gAppState.CurrentSpace = XR_NULL_HANDLE;
OXR(xrDestroySession(gAppState.Session));
gAppState.Session = NULL;
}
ovrRenderer_Destroy( &gAppState.Renderer );
ovrEgl_DestroyContext( &gAppState.Egl );
(*java.Vm)->DetachCurrentThread( java.Vm );
}
void TBXR_InitRenderer( ) {
// Get the viewport configuration info for the chosen viewport configuration type.
gAppState.ViewportConfig.type = XR_TYPE_VIEW_CONFIGURATION_PROPERTIES;
OXR(xrGetViewConfigurationProperties(
gAppState.Instance, gAppState.SystemId, XR_VIEW_CONFIGURATION_TYPE_PRIMARY_STEREO, &gAppState.ViewportConfig));
#ifdef META_QUEST
XrSystemColorSpacePropertiesFB colorSpacePropertiesFB = {};
colorSpacePropertiesFB.type = XR_TYPE_SYSTEM_COLOR_SPACE_PROPERTIES_FB;
XrSystemProperties systemProperties = {};
systemProperties.type = XR_TYPE_SYSTEM_PROPERTIES;
systemProperties.next = &colorSpacePropertiesFB;
OXR(xrGetSystemProperties(gAppState.Instance, gAppState.SystemId, &systemProperties));
// Enumerate the supported color space options for the system.
{
PFN_xrEnumerateColorSpacesFB pfnxrEnumerateColorSpacesFB = NULL;
OXR(xrGetInstanceProcAddr(
gAppState.Instance,
"xrEnumerateColorSpacesFB",
(PFN_xrVoidFunction*)(&pfnxrEnumerateColorSpacesFB)));
uint32_t colorSpaceCountOutput = 0;
OXR(pfnxrEnumerateColorSpacesFB(gAppState.Session, 0, &colorSpaceCountOutput, NULL));
XrColorSpaceFB* colorSpaces =
(XrColorSpaceFB*)malloc(colorSpaceCountOutput * sizeof(XrColorSpaceFB));
OXR(pfnxrEnumerateColorSpacesFB(
gAppState.Session, colorSpaceCountOutput, &colorSpaceCountOutput, colorSpaces));
ALOGV("Supported ColorSpaces:");
for (uint32_t i = 0; i < colorSpaceCountOutput; i++) {
ALOGV("%d:%d", i, colorSpaces[i]);
}
const XrColorSpaceFB requestColorSpace = XR_COLOR_SPACE_REC2020_FB;
PFN_xrSetColorSpaceFB pfnxrSetColorSpaceFB = NULL;
OXR(xrGetInstanceProcAddr(
gAppState.Instance, "xrSetColorSpaceFB", (PFN_xrVoidFunction*)(&pfnxrSetColorSpaceFB)));
OXR(pfnxrSetColorSpaceFB(gAppState.Session, requestColorSpace));
free(colorSpaces);
}
// Get the supported display refresh rates for the system.
{
PFN_xrEnumerateDisplayRefreshRatesFB pfnxrEnumerateDisplayRefreshRatesFB = NULL;
OXR(xrGetInstanceProcAddr(
gAppState.Instance,
"xrEnumerateDisplayRefreshRatesFB",
(PFN_xrVoidFunction*)(&pfnxrEnumerateDisplayRefreshRatesFB)));
OXR(pfnxrEnumerateDisplayRefreshRatesFB(
gAppState.Session, 0, &gAppState.NumSupportedDisplayRefreshRates, NULL));
gAppState.SupportedDisplayRefreshRates =
(float*)malloc(gAppState.NumSupportedDisplayRefreshRates * sizeof(float));
OXR(pfnxrEnumerateDisplayRefreshRatesFB(
gAppState.Session,
gAppState.NumSupportedDisplayRefreshRates,
&gAppState.NumSupportedDisplayRefreshRates,
gAppState.SupportedDisplayRefreshRates));
ALOGV("Supported Refresh Rates:");
for (uint32_t i = 0; i < gAppState.NumSupportedDisplayRefreshRates; i++) {
ALOGV("%d:%f", i, gAppState.SupportedDisplayRefreshRates[i]);
}
OXR(xrGetInstanceProcAddr(
gAppState.Instance,
"xrGetDisplayRefreshRateFB",
(PFN_xrVoidFunction*)(&gAppState.pfnGetDisplayRefreshRate)));
OXR(gAppState.pfnGetDisplayRefreshRate(gAppState.Session, &gAppState.currentDisplayRefreshRate));
ALOGV("Current System Display Refresh Rate: %f", gAppState.currentDisplayRefreshRate);
OXR(xrGetInstanceProcAddr(
gAppState.Instance,
"xrRequestDisplayRefreshRateFB",
(PFN_xrVoidFunction*)(&gAppState.pfnRequestDisplayRefreshRate)));
// Test requesting the system default.
OXR(gAppState.pfnRequestDisplayRefreshRate(gAppState.Session, 0.0f));
ALOGV("Requesting system default display refresh rate");
}
#endif
uint32_t numOutputSpaces = 0;
OXR(xrEnumerateReferenceSpaces(gAppState.Session, 0, &numOutputSpaces, NULL));
XrReferenceSpaceType* referenceSpaces =
(XrReferenceSpaceType*)malloc(numOutputSpaces * sizeof(XrReferenceSpaceType));
OXR(xrEnumerateReferenceSpaces(
gAppState.Session, numOutputSpaces, &numOutputSpaces, referenceSpaces));
for (uint32_t i = 0; i < numOutputSpaces; i++) {
if (referenceSpaces[i] == XR_REFERENCE_SPACE_TYPE_STAGE) {
stageSupported = GL_TRUE;
break;
}
}
free(referenceSpaces);
if (gAppState.CurrentSpace == XR_NULL_HANDLE) {
TBXR_Recenter();
}
gAppState.Projections = (XrView*)(malloc(ovrMaxNumEyes * sizeof(XrView)));
for (int eye = 0; eye < ovrMaxNumEyes; eye++) {
memset(&gAppState.Projections[eye], 0, sizeof(XrView));
gAppState.Projections[eye].type = XR_TYPE_VIEW;
}
#ifdef PICO_XR
xrGetInstanceProcAddr(gAppState.Instance,"xrSetConfigPICO", (PFN_xrVoidFunction*)(&pfnXrSetConfigPICO));
xrGetInstanceProcAddr(gAppState.Instance,"xrGetConfigPICO", (PFN_xrVoidFunction*)(&pfnXrGetConfigPICO));
pfnXrSetConfigPICO(gAppState.Session,TRACKING_ORIGIN,"0");
pfnXrSetConfigPICO(gAppState.Session,TRACKING_ORIGIN,"1");
pfnXrGetConfigPICO(gAppState.Session, GET_DISPLAY_RATE, &gAppState.currentDisplayRefreshRate);
#endif
ovrRenderer_Create(
gAppState.Session,
&gAppState.Renderer,
gAppState.ViewConfigurationView[0].recommendedImageRectWidth,
gAppState.ViewConfigurationView[0].recommendedImageRectHeight);
}
void VR_DestroyRenderer( )
{
ovrRenderer_Destroy(&gAppState.Renderer);
free(gAppState.Projections);
}
void TBXR_InitialiseOpenXR()
{
ovrApp_Clear(&gAppState);
gAppState.Java = java;
ovrEgl_CreateContext(&gAppState.Egl, NULL);
EglInitExtensions();
PFN_xrInitializeLoaderKHR xrInitializeLoaderKHR;
xrGetInstanceProcAddr(
XR_NULL_HANDLE, "xrInitializeLoaderKHR", (PFN_xrVoidFunction*)&xrInitializeLoaderKHR);
if (xrInitializeLoaderKHR != NULL) {
XrLoaderInitInfoAndroidKHR loaderInitializeInfoAndroid;
memset(&loaderInitializeInfoAndroid, 0, sizeof(loaderInitializeInfoAndroid));
loaderInitializeInfoAndroid.type = XR_TYPE_LOADER_INIT_INFO_ANDROID_KHR;
loaderInitializeInfoAndroid.next = NULL;
loaderInitializeInfoAndroid.applicationVM = java.Vm;
loaderInitializeInfoAndroid.applicationContext = java.ActivityObject;
xrInitializeLoaderKHR((XrLoaderInitInfoBaseHeaderKHR*)&loaderInitializeInfoAndroid);
}
// Create the OpenXR instance.
XrApplicationInfo appInfo;
memset(&appInfo, 0, sizeof(appInfo));
strcpy(appInfo.applicationName, "JKXR");
appInfo.applicationVersion = 0;
strcpy(appInfo.engineName, "JKXR");
appInfo.engineVersion = 0;
appInfo.apiVersion = XR_CURRENT_API_VERSION;
XrInstanceCreateInfo instanceCreateInfo;
memset(&instanceCreateInfo, 0, sizeof(instanceCreateInfo));
instanceCreateInfo.type = XR_TYPE_INSTANCE_CREATE_INFO;
#ifdef META_QUEST
instanceCreateInfo.next = NULL;
#endif
#ifdef PICO_XR
XrInstanceCreateInfoAndroidKHR instanceCreateInfoAndroid = {XR_TYPE_INSTANCE_CREATE_INFO_ANDROID_KHR};
instanceCreateInfoAndroid.applicationVM = java.Vm;
instanceCreateInfoAndroid.applicationActivity = java.ActivityObject;
instanceCreateInfo.next = (XrBaseInStructure*)&instanceCreateInfoAndroid;
#endif
instanceCreateInfo.createFlags = 0;
instanceCreateInfo.applicationInfo = appInfo;
instanceCreateInfo.enabledApiLayerCount = 0;
instanceCreateInfo.enabledApiLayerNames = NULL;
instanceCreateInfo.enabledExtensionCount = numRequiredExtensions;
instanceCreateInfo.enabledExtensionNames = requiredExtensionNames;
XrResult initResult;
OXR(initResult = xrCreateInstance(&instanceCreateInfo, &gAppState.Instance));
if (initResult != XR_SUCCESS) {
ALOGE("Failed to create XR instance: %d.", initResult);
exit(1);
}
XrInstanceProperties instanceInfo;
instanceInfo.type = XR_TYPE_INSTANCE_PROPERTIES;
instanceInfo.next = NULL;
OXR(xrGetInstanceProperties(gAppState.Instance, &instanceInfo));
ALOGV(
"Runtime %s: Version : %u.%u.%u",
instanceInfo.runtimeName,
XR_VERSION_MAJOR(instanceInfo.runtimeVersion),
XR_VERSION_MINOR(instanceInfo.runtimeVersion),
XR_VERSION_PATCH(instanceInfo.runtimeVersion));
XrSystemGetInfo systemGetInfo;
memset(&systemGetInfo, 0, sizeof(systemGetInfo));
systemGetInfo.type = XR_TYPE_SYSTEM_GET_INFO;
systemGetInfo.next = NULL;
systemGetInfo.formFactor = XR_FORM_FACTOR_HEAD_MOUNTED_DISPLAY;
OXR(initResult = xrGetSystem(gAppState.Instance, &systemGetInfo, &gAppState.SystemId));
if (initResult != XR_SUCCESS) {
ALOGE("Failed to get system.");
exit(1);
}
// Get the graphics requirements.
PFN_xrGetOpenGLESGraphicsRequirementsKHR pfnGetOpenGLESGraphicsRequirementsKHR = NULL;
OXR(xrGetInstanceProcAddr(
gAppState.Instance,
"xrGetOpenGLESGraphicsRequirementsKHR",
(PFN_xrVoidFunction * )(&pfnGetOpenGLESGraphicsRequirementsKHR)));
XrGraphicsRequirementsOpenGLESKHR graphicsRequirements = {};
graphicsRequirements.type = XR_TYPE_GRAPHICS_REQUIREMENTS_OPENGL_ES_KHR;
OXR(pfnGetOpenGLESGraphicsRequirementsKHR(gAppState.Instance, gAppState.SystemId,
&graphicsRequirements));
#ifdef META_QUEST
XrSystemColorSpacePropertiesFB colorSpacePropertiesFB = {};
colorSpacePropertiesFB.type = XR_TYPE_SYSTEM_COLOR_SPACE_PROPERTIES_FB;
XrSystemProperties systemProperties = {};
systemProperties.type = XR_TYPE_SYSTEM_PROPERTIES;
systemProperties.next = &colorSpacePropertiesFB;
OXR(xrGetSystemProperties(gAppState.Instance, gAppState.SystemId, &systemProperties));
ALOGV("System Color Space Properties: colorspace=%d", colorSpacePropertiesFB.colorSpace);
#endif
TBXR_InitialiseResolution();
}
void TBXR_Recenter() {
// Calculate recenter reference
XrReferenceSpaceCreateInfo spaceCreateInfo = {};
spaceCreateInfo.type = XR_TYPE_REFERENCE_SPACE_CREATE_INFO;
spaceCreateInfo.poseInReferenceSpace.orientation.w = 1.0f;
if (gAppState.CurrentSpace != XR_NULL_HANDLE) {
vec3_t rotation = {0, 0, 0};
XrSpaceLocation loc = {};
loc.type = XR_TYPE_SPACE_LOCATION;
OXR(xrLocateSpace(gAppState.HeadSpace, gAppState.CurrentSpace, gAppState.PredictedDisplayTime, &loc));
QuatToYawPitchRoll(loc.pose.orientation, rotation, hmdorientation);
spaceCreateInfo.poseInReferenceSpace.orientation.x = 0;
spaceCreateInfo.poseInReferenceSpace.orientation.y = 0;
spaceCreateInfo.poseInReferenceSpace.orientation.z = 0;
spaceCreateInfo.poseInReferenceSpace.orientation.w = 1;
}
// Delete previous space instances
if (gAppState.StageSpace != XR_NULL_HANDLE) {
OXR(xrDestroySpace(gAppState.StageSpace));
}
if (gAppState.FakeStageSpace != XR_NULL_HANDLE) {
OXR(xrDestroySpace(gAppState.FakeStageSpace));
}
// Create a default stage space to use if SPACE_TYPE_STAGE is not
// supported, or calls to xrGetReferenceSpaceBoundsRect fail.
spaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_LOCAL;
spaceCreateInfo.poseInReferenceSpace.position.y = -1.6750f;
OXR(xrCreateReferenceSpace(gAppState.Session, &spaceCreateInfo, &gAppState.FakeStageSpace));
ALOGV("Created fake stage space from local space with offset");
gAppState.CurrentSpace = gAppState.FakeStageSpace;
if (stageSupported) {
spaceCreateInfo.referenceSpaceType = XR_REFERENCE_SPACE_TYPE_STAGE;
spaceCreateInfo.poseInReferenceSpace.position.y = 0.0f;
OXR(xrCreateReferenceSpace(gAppState.Session, &spaceCreateInfo, &gAppState.StageSpace));
ALOGV("Created stage space");
gAppState.CurrentSpace = gAppState.StageSpace;
}
}
void TBXR_UpdateStageBounds() {
XrExtent2Df stageBounds = {};
XrResult result;
OXR(result = xrGetReferenceSpaceBoundsRect(
gAppState.Session, XR_REFERENCE_SPACE_TYPE_STAGE, &stageBounds));
if (result != XR_SUCCESS) {
ALOGE("Stage bounds query failed: using small defaults");
stageBounds.width = 1.0f;
stageBounds.height = 1.0f;
gAppState.CurrentSpace = gAppState.FakeStageSpace;
}
}
void TBXR_WaitForSessionActive()
{//Now wait for the session to be ready
while (!gAppState.SessionActive) {
TBXR_ProcessMessageQueue();
if (ovrApp_HandleXrEvents(&gAppState)) {
TBXR_Recenter();
}
}
}
static void TBXR_GetHMDOrientation() {
if (gAppState.PredictedDisplayTime == 0)
{
return;
}
// Get the HMD pose, predicted for the middle of the time period during which
// the new eye images will be displayed. The number of frames predicted ahead
// depends on the pipeline depth of the engine and the synthesis rate.
// The better the prediction, the less black will be pulled in at the edges.
XrSpaceLocation loc = {};
loc.type = XR_TYPE_SPACE_LOCATION;
OXR(xrLocateSpace(gAppState.HeadSpace, gAppState.CurrentSpace, gAppState.PredictedDisplayTime, &loc));
gAppState.xfStageFromHead = loc.pose;
const XrQuaternionf quatHmd = gAppState.xfStageFromHead.orientation;
const XrVector3f positionHmd = gAppState.xfStageFromHead.position;
vec3_t rotation = {0, 0, 0};
vec3_t hmdorientation = {0, 0, 0};
QuatToYawPitchRoll(quatHmd, rotation, hmdorientation);
VR_SetHMDPosition(positionHmd.x, positionHmd.y, positionHmd.z);
VR_SetHMDOrientation(hmdorientation[0], hmdorientation[1], hmdorientation[2]);
}
//All the stuff we want to do each frame
void TBXR_FrameSetup()
{
if (gAppState.FrameSetup)
{
return;
}
while (!destroyed)
{
TBXR_ProcessMessageQueue();
GLboolean stageBoundsDirty = GL_TRUE;
if (ovrApp_HandleXrEvents(&gAppState))
{
TBXR_Recenter();
}
if (gAppState.SessionActive == GL_FALSE)
{
continue;
}
if (stageBoundsDirty)
{
TBXR_UpdateStageBounds();
stageBoundsDirty = GL_FALSE;
}
break;
}
if (destroyed)
{
TBXR_LeaveVR();
//Ask Java to shut down
VR_Shutdown();
exit(0); // in case Java doesn't do the job
}
// NOTE: OpenXR does not use the concept of frame indices. Instead,
// XrWaitFrame returns the predicted display time.
XrFrameWaitInfo waitFrameInfo = {};
waitFrameInfo.type = XR_TYPE_FRAME_WAIT_INFO;
waitFrameInfo.next = NULL;
XrFrameState frameState = {};
frameState.type = XR_TYPE_FRAME_STATE;
frameState.next = NULL;
OXR(xrWaitFrame(gAppState.Session, &waitFrameInfo, &frameState));
gAppState.PredictedDisplayTime = frameState.predictedDisplayTime;
if (!frameState.shouldRender) {
return;
}
// Get the HMD pose, predicted for the middle of the time period during which
// the new eye images will be displayed. The number of frames predicted ahead
// depends on the pipeline depth of the engine and the synthesis rate.
// The better the prediction, the less black will be pulled in at the edges.
XrFrameBeginInfo beginFrameDesc = {};
beginFrameDesc.type = XR_TYPE_FRAME_BEGIN_INFO;
beginFrameDesc.next = NULL;
OXR(xrBeginFrame(gAppState.Session, &beginFrameDesc));
//Game specific frame setup stuff called here
VR_FrameSetup();
//Get controller state here
TBXR_GetHMDOrientation();
VR_HandleControllerInput();
TBXR_ProcessHaptics();
gAppState.FrameSetup = true;
}
int TBXR_GetRefresh()
{
return gAppState.currentDisplayRefreshRate;
}
#define GL_FRAMEBUFFER_SRGB 0x8DB9
void TBXR_ClearFrameBuffer(int width, int height)
{
glEnable( GL_SCISSOR_TEST );
glViewport( 0, 0, width, height );
//Black
glClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
glScissor( 0, 0, width, height );
glClear( GL_COLOR_BUFFER_BIT );
glScissor( 0, 0, 0, 0 );
glDisable( GL_SCISSOR_TEST );
//This is a bit of a hack, but we need to do this to correct for the fact that the engine uses linear RGB colorspace
//but openxr uses SRGB (or something, must admit I don't really understand, but adding this works to make it look good again)
glDisable( GL_FRAMEBUFFER_SRGB );
}
void TBXR_prepareEyeBuffer(int eye )
{
ovrFramebuffer* frameBuffer = &(gAppState.Renderer.FrameBuffer[eye]);
ovrFramebuffer_Acquire(frameBuffer);
ovrFramebuffer_SetCurrent(frameBuffer);
TBXR_ClearFrameBuffer(frameBuffer->ColorSwapChain.Width, frameBuffer->ColorSwapChain.Height);
}
void TBXR_finishEyeBuffer(int eye )
{
ovrRenderer *renderer = &gAppState.Renderer;
ovrFramebuffer *frameBuffer = &(renderer->FrameBuffer[eye]);
// Clear the alpha channel, other way OpenXR would not transfer the framebuffer fully
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_TRUE);
glClearColor(0.0, 0.0, 0.0, 1.0);
glClear(GL_COLOR_BUFFER_BIT);
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
//Clear edge to prevent smearing
ovrFramebuffer_Resolve(frameBuffer);
ovrFramebuffer_Release(frameBuffer);
ovrFramebuffer_SetNone();
}
void TBXR_updateProjections()
{
XrViewLocateInfo projectionInfo = {};
projectionInfo.type = XR_TYPE_VIEW_LOCATE_INFO;
projectionInfo.viewConfigurationType = gAppState.ViewportConfig.viewConfigurationType;
projectionInfo.displayTime = gAppState.PredictedDisplayTime;
projectionInfo.space = gAppState.HeadSpace;
XrViewState viewState = {XR_TYPE_VIEW_STATE, NULL};
uint32_t projectionCapacityInput = ovrMaxNumEyes;
uint32_t projectionCountOutput = projectionCapacityInput;
OXR(xrLocateViews(
gAppState.Session,
&projectionInfo,
&viewState,
projectionCapacityInput,
&projectionCountOutput,
gAppState.Projections));
}
float fov_y = 0.0;
float GetFOV()
{
return fov_y;
}
void TBXR_submitFrame()
{
if (gAppState.SessionActive == GL_FALSE) {
return;
}
TBXR_updateProjections();
XrFovf fov = {};
XrPosef viewTransform[2];
for (int eye = 0; eye < ovrMaxNumEyes; eye++) {
XrPosef xfHeadFromEye = gAppState.Projections[eye].pose;
XrPosef xfStageFromEye = XrPosef_Multiply(gAppState.xfStageFromHead, xfHeadFromEye);
viewTransform[eye] = XrPosef_Inverse(xfStageFromEye);
fov.angleLeft += gAppState.Projections[eye].fov.angleLeft / 2.0f;
fov.angleRight += gAppState.Projections[eye].fov.angleRight / 2.0f;
fov.angleUp += gAppState.Projections[eye].fov.angleUp / 2.0f;
fov.angleDown += gAppState.Projections[eye].fov.angleDown / 2.0f;
}
//vr.fov_x = (fabs(fov.angleLeft) + fabs(fov.angleRight)) * 180.0f / M_PI;
fov_y = (fabs(fov.angleUp) + fabs(fov.angleDown)) * 180.0f / M_PI;
gAppState.LayerCount = 0;
memset(gAppState.Layers, 0, sizeof(xrCompositorLayer_Union) * ovrMaxLayerCount);
XrCompositionLayerProjectionView projection_layer_elements[2] = {};
if (!VR_UseScreenLayer()) {
XrCompositionLayerProjection projection_layer = {};
projection_layer.type = XR_TYPE_COMPOSITION_LAYER_PROJECTION;
projection_layer.layerFlags = XR_COMPOSITION_LAYER_BLEND_TEXTURE_SOURCE_ALPHA_BIT;
projection_layer.layerFlags |= XR_COMPOSITION_LAYER_CORRECT_CHROMATIC_ABERRATION_BIT;
projection_layer.space = gAppState.CurrentSpace;
projection_layer.viewCount = ovrMaxNumEyes;
projection_layer.views = projection_layer_elements;
for (int eye = 0; eye < ovrMaxNumEyes; eye++) {
ovrFramebuffer* frameBuffer = &gAppState.Renderer.FrameBuffer[eye];
memset(&projection_layer_elements[eye], 0, sizeof(XrCompositionLayerProjectionView));
projection_layer_elements[eye].type = XR_TYPE_COMPOSITION_LAYER_PROJECTION_VIEW;
projection_layer_elements[eye].pose = gAppState.xfStageFromHead;
projection_layer_elements[eye].fov = fov;
memset(&projection_layer_elements[eye].subImage, 0, sizeof(XrSwapchainSubImage));
projection_layer_elements[eye].subImage.swapchain =
frameBuffer->ColorSwapChain.Handle;
projection_layer_elements[eye].subImage.imageRect.offset.x = 0;
projection_layer_elements[eye].subImage.imageRect.offset.y = 0;
projection_layer_elements[eye].subImage.imageRect.extent.width =
frameBuffer->ColorSwapChain.Width;
projection_layer_elements[eye].subImage.imageRect.extent.height =
frameBuffer->ColorSwapChain.Height;
projection_layer_elements[eye].subImage.imageArrayIndex = 0;
}
gAppState.Layers[gAppState.LayerCount++].Projection = projection_layer;
} else {
// Build the quad layer
XrCompositionLayerQuad quad_layer = {};
int width = gAppState.Renderer.FrameBuffer[0].ColorSwapChain.Width;
int height = gAppState.Renderer.FrameBuffer[0].ColorSwapChain.Height;
quad_layer.type = XR_TYPE_COMPOSITION_LAYER_QUAD;
quad_layer.next = NULL;
quad_layer.layerFlags = XR_COMPOSITION_LAYER_BLEND_TEXTURE_SOURCE_ALPHA_BIT;
quad_layer.space = gAppState.CurrentSpace;
quad_layer.eyeVisibility = XR_EYE_VISIBILITY_BOTH;
memset(&quad_layer.subImage, 0, sizeof(XrSwapchainSubImage));
quad_layer.subImage.swapchain = gAppState.Renderer.FrameBuffer[0].ColorSwapChain.Handle;
quad_layer.subImage.imageRect.offset.x = 0;
quad_layer.subImage.imageRect.offset.y = 0;
quad_layer.subImage.imageRect.extent.width = width;
quad_layer.subImage.imageRect.extent.height = height;
quad_layer.subImage.imageArrayIndex = 0;
const XrVector3f axis = {0.0f, 1.0f, 0.0f};
XrVector3f pos = {
gAppState.xfStageFromHead.position.x - sin(DEG2RAD(playerYaw)) * VR_GetScreenLayerDistance(),
1.0f,
gAppState.xfStageFromHead.position.z - cos(DEG2RAD(playerYaw)) * VR_GetScreenLayerDistance()
};
quad_layer.pose.orientation = XrQuaternionf_CreateFromVectorAngle(axis, DEG2RAD(playerYaw));
quad_layer.pose.position = pos;
XrExtent2Df size = {5.0f, 4.5f};
quad_layer.size = size;
gAppState.Layers[gAppState.LayerCount++].Quad = quad_layer;
}
// Compose the layers for this frame.
const XrCompositionLayerBaseHeader* layers[ovrMaxLayerCount] = {};
for (int i = 0; i < gAppState.LayerCount; i++) {
layers[i] = (const XrCompositionLayerBaseHeader*)&gAppState.Layers[i];
}
XrFrameEndInfo endFrameInfo = {};
endFrameInfo.type = XR_TYPE_FRAME_END_INFO;
endFrameInfo.displayTime = gAppState.PredictedDisplayTime;
endFrameInfo.environmentBlendMode = XR_ENVIRONMENT_BLEND_MODE_OPAQUE;
endFrameInfo.layerCount = gAppState.LayerCount;
endFrameInfo.layers = layers;
OXR(xrEndFrame(gAppState.Session, &endFrameInfo));
gAppState.FrameSetup = false;
}
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