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jkxr/Projects/Android/jni/JKVR/TBXR_Common.cpp

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Step to make the code reuseable Tried to separate out the game specific logic in the JKVR files from the generic OpenXR and other boilerplate stuff that each port will need
2022-12-19 21:23:28 +00:00
#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 "VrInput.h"
#include "VrCvars.h"
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES3/gl3.h>
#include <GLES3/gl3ext.h>
#define GL_GLEXT_PROTOTYPES
#include <GLES/gl2ext.h>
extern "C" {
#include "src/gl/loader.h"
}
#include <client/client.h>
#include "VrInput.h"
#include "VrCommon.h"
#include "../SupportLibs/jpeg8d/jinclude.h"
#include "../SupportLibs/libpng/pngconf.h"
#include "../SupportLibs/gl4es/include/android_debug.h"
#include "../SupportLibs/gl4es/src/gl/logs.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 = 2;
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;
}
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( &appThread->JavaVm );
appThread->ActivityObject = env->NewGlobalRef( activityObject );
appThread->ActivityClass = (jclass)env->NewGlobalRef( 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( appThread->ActivityObject );
env->DeleteGlobalRef( 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 = qfalse;
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 GL_APIENTRYP VR_GLDebugLog(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,GLvoid *userParam)
{
if (type == GL_DEBUG_TYPE_ERROR || type == GL_DEBUG_TYPE_PERFORMANCE || ENABLE_GL_DEBUG_VERBOSE)
{
char typeStr[128];
switch (type) {
case GL_DEBUG_TYPE_ERROR: sprintf(typeStr, "ERROR"); break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: sprintf(typeStr, "DEPRECATED_BEHAVIOR"); break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: sprintf(typeStr, "UNDEFINED_BEHAVIOR"); break;
case GL_DEBUG_TYPE_PORTABILITY: sprintf(typeStr, "PORTABILITY"); break;
case GL_DEBUG_TYPE_PERFORMANCE: sprintf(typeStr, "PERFORMANCE"); break;
case GL_DEBUG_TYPE_MARKER: sprintf(typeStr, "MARKER"); break;
case GL_DEBUG_TYPE_PUSH_GROUP: sprintf(typeStr, "PUSH_GROUP"); break;
case GL_DEBUG_TYPE_POP_GROUP: sprintf(typeStr, "POP_GROUP"); break;
default: sprintf(typeStr, "OTHER"); break;
}
char severinityStr[128];
switch (severity) {
case GL_DEBUG_SEVERITY_HIGH: sprintf(severinityStr, "HIGH"); break;
case GL_DEBUG_SEVERITY_MEDIUM: sprintf(severinityStr, "MEDIUM"); break;
case GL_DEBUG_SEVERITY_LOW: sprintf(severinityStr, "LOW"); break;
default: sprintf(severinityStr, "VERBOSE"); break;
}
ALOGE("[%s] GL issue - %s: %s\n", severinityStr, typeStr, message);
}
}
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( );
}
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, vr.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));
}
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;
vr.fov_y = (fabs(fov.angleUp) + fabs(fov.angleDown)) * 180.0f / M_PI;
if (vr.cgzoommode)
{
fov.angleLeft /= 1.3f;
fov.angleRight /= 1.3f;
fov.angleUp /= 1.3f;
fov.angleDown /= 1.3f;
}
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(vr.hmdorientation_snap[YAW])) * VR_GetScreenLayerDistance(),
1.0f,
gAppState.xfStageFromHead.position.z - cos(DEG2RAD(vr.hmdorientation_snap[YAW])) * VR_GetScreenLayerDistance()
};
quad_layer.pose.orientation = XrQuaternionf_CreateFromVectorAngle(axis, DEG2RAD(vr.hmdorientation_snap[YAW]));
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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