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/*
https://github.com/sensics/OSVR-RenderManager/blob/master/examples/RenderManagerOpenGLCAPIExample.cpp
- JVM crashes often. Placing breakpoints during initialization clears it up most of the time (WHY!?)
- OSVR is just unstable. Any way to improve things?
- Render manager looks good, but left eye seems stretched.
*/
package com.jme3.input.vr.osvr;
import com.jme3.app.VREnvironment;
import com.jme3.input.vr.HmdType;
import com.jme3.input.vr.VRAPI;
import com.jme3.input.vr.VRInputAPI;
import com.jme3.math.Matrix4f;
import com.jme3.math.Quaternion;
import com.jme3.math.Vector2f;
import com.jme3.math.Vector3f;
import com.jme3.renderer.Camera;
import com.jme3.system.osvr.osvrclientkit.OsvrClientKitLibrary;
import com.jme3.system.osvr.osvrdisplay.OsvrDisplayLibrary;
import com.jme3.system.osvr.osvrdisplay.OsvrDisplayLibrary.OSVR_DisplayConfig;
import com.jme3.system.osvr.osvrmatrixconventions.OSVR_Pose3;
import com.jme3.system.osvr.osvrrendermanageropengl.OSVR_OpenResultsOpenGL;
import com.jme3.system.osvr.osvrrendermanageropengl.OSVR_RenderBufferOpenGL;
import com.jme3.system.osvr.osvrrendermanageropengl.OSVR_RenderInfoOpenGL;
import com.jme3.system.osvr.osvrrendermanageropengl.OSVR_RenderParams;
import com.jme3.system.osvr.osvrrendermanageropengl.OSVR_ViewportDescription;
import com.jme3.system.osvr.osvrrendermanageropengl.OsvrRenderManagerOpenGLLibrary;
import com.ochafik.lang.jnaerator.runtime.NativeSize;
import com.ochafik.lang.jnaerator.runtime.NativeSizeByReference;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.PointerByReference;
import java.nio.FloatBuffer;
import java.util.logging.Logger;
/**
* A class that wraps an OSVR system.
* @author reden - phr00t - https://github.com/phr00t
* @author Julien Seinturier - COMEX SA - http://www.seinturier.fr
*/
public class OSVR implements VRAPI {
private static final Logger logger = Logger.getLogger(OSVR.class.getName());
/**
* The first viewer index.
*/
public static final int FIRST_VIEWER = 0;
/**
* The left eye index.
*/
public static final int EYE_LEFT = 0;
/**
* The right eye index.
*/
public static final int EYE_RIGHT = 1;
/**
* The size of the left eye.
*/
public static final NativeSize EYE_LEFT_SIZE = new NativeSize(EYE_LEFT);
/**
* The size of the right eye.
*/
public static final NativeSize EYE_RIGHT_SIZE = new NativeSize(EYE_RIGHT);
/**
* The default J String.
*/
public static byte[] defaultJString = { 'j', (byte)0 };
/**
* The default OpenGL String.
*/
public static byte[] OpenGLString = { 'O', 'p', 'e', 'n', 'G', 'L', (byte)0 };
private final Matrix4f[] eyeMatrix = new Matrix4f[2];
private PointerByReference grabRM;
private PointerByReference grabRMOGL;
private PointerByReference grabRIC;
OSVR_RenderParams.ByValue renderParams;
OsvrClientKitLibrary.OSVR_ClientContext context;
com.jme3.system.osvr.osvrrendermanageropengl.OSVR_GraphicsLibraryOpenGL.ByValue graphicsLibrary;
Pointer renderManager, renderManagerOpenGL, renderInfoCollection, registerBufferState;
OSVRInput VRinput;
NativeSize numRenderInfo;
NativeSizeByReference grabNumInfo = new NativeSizeByReference();
OSVR_RenderInfoOpenGL.ByValue eyeLeftInfo, eyeRightInfo;
Matrix4f hmdPoseLeftEye;
Matrix4f hmdPoseRightEye;
Vector3f hmdPoseLeftEyeVec, hmdPoseRightEyeVec, hmdSeatToStand;
OSVR_DisplayConfig displayConfig;
OSVR_Pose3 hmdPose = new OSVR_Pose3();
Vector3f storePos = new Vector3f();
Quaternion storeRot = new Quaternion();
PointerByReference presentState = new PointerByReference();
OSVR_OpenResultsOpenGL openResults = new OSVR_OpenResultsOpenGL();
long glfwContext;
long renderManagerContext;
long wglGLFW;
long wglRM;
boolean initSuccess = false;
boolean flipEyes = false;
private VREnvironment environment = null;
/**
* Create a new OSVR system attached to the given {@link VREnvironment VR environment}.
* @param environment the {@link VREnvironment VR environment} to which the input is attached.
*/
public OSVR(VREnvironment environment){
this.environment = environment;
}
/**
* Access to the underlying OSVR structures.
* @param leftView the left viewport.
* @param rightView the right viewport.
* @param leftBuffer the left buffer.
* @param rightBuffer the right buffer.
* @return true if the structure are accessible and false otherwise.
*/
public boolean handleRenderBufferPresent(OSVR_ViewportDescription.ByValue leftView, OSVR_ViewportDescription.ByValue rightView,
OSVR_RenderBufferOpenGL.ByValue leftBuffer, OSVR_RenderBufferOpenGL.ByValue rightBuffer) {
if( eyeLeftInfo == null || eyeRightInfo == null ) return false;
byte retval;
OsvrRenderManagerOpenGLLibrary.osvrRenderManagerStartPresentRenderBuffers(presentState);
getEyeInfo();
OsvrRenderManagerOpenGLLibrary.osvrRenderManagerPresentRenderBufferOpenGL(presentState.getValue(), leftBuffer, eyeLeftInfo, leftView);
OsvrRenderManagerOpenGLLibrary.osvrRenderManagerPresentRenderBufferOpenGL(presentState.getValue(), rightBuffer, eyeRightInfo, rightView);
retval = OsvrRenderManagerOpenGLLibrary.osvrRenderManagerFinishPresentRenderBuffers(renderManager, presentState.getValue(), renderParams, (byte)0);
return retval == 0; // only check the last error, since if something errored above, the last call won't work & all calls will log to syserr
}
@Override
public boolean initialize() {
logger.config("Initialize OSVR system.");
hmdPose.setAutoSynch(false);
context = OsvrClientKitLibrary.osvrClientInit(defaultJString, 0);
VRinput = new OSVRInput(environment);
initSuccess = context != null && VRinput.init();
if( initSuccess ) {
PointerByReference grabDisplay = new PointerByReference();
byte retval = OsvrDisplayLibrary.osvrClientGetDisplay(context, grabDisplay);
if( retval != 0 ) {
System.out.println("OSVR Get Display Error: " + retval);
initSuccess = false;
return false;
}
displayConfig = new OSVR_DisplayConfig(grabDisplay.getValue());
System.out.println("Waiting for the display to fully start up, including receiving initial pose update...");
int i = 400;
while (OsvrDisplayLibrary.osvrClientCheckDisplayStartup(displayConfig) != 0) {
if( i-- < 0 ) {
System.out.println("Couldn't get display startup update in time, continuing anyway...");
break;
}
OsvrClientKitLibrary.osvrClientUpdate(context);
try {
Thread.sleep(5);
} catch(Exception e) { }
}
System.out.println("OK, display startup status is good!");
}
return initSuccess;
}
/**
* Grab the current GLFW context.
*/
public void grabGLFWContext() {
// get current context
wglGLFW = org.lwjgl.opengl.WGL.wglGetCurrentContext();
glfwContext = org.lwjgl.glfw.GLFW.glfwGetCurrentContext();
}
/**
* Enable context sharing.
* @return true if the context is successfully shared and false otherwise.
*/
public boolean shareContext() {
if( org.lwjgl.opengl.WGL.wglShareLists(wglRM, wglGLFW)) {
System.out.println("Context sharing success!");
return true;
} else {
System.out.println("Context sharing problem...");
return false;
}
}
@Override
public boolean initVRCompositor(boolean allowed) {
if( !allowed || renderManager != null ) return false;
grabGLFWContext();
graphicsLibrary = new com.jme3.system.osvr.osvrrendermanageropengl.OSVR_GraphicsLibraryOpenGL.ByValue();
graphicsLibrary.toolkit = null;
graphicsLibrary.setAutoSynch(false);
grabRM = new PointerByReference(); grabRMOGL = new PointerByReference();
byte retval = OsvrRenderManagerOpenGLLibrary.osvrCreateRenderManagerOpenGL(context, OpenGLString, graphicsLibrary, grabRM, grabRMOGL);
if( retval == 0 ) {
renderManager = grabRM.getValue(); renderManagerOpenGL = grabRMOGL.getValue();
if( renderManager == null || renderManagerOpenGL == null ) {
System.out.println("Render Manager Created NULL, error!");
return false;
}
openResults.setAutoSynch(false);
retval = OsvrRenderManagerOpenGLLibrary.osvrRenderManagerOpenDisplayOpenGL(renderManager, openResults);
if( retval == 0 ) {
wglRM = org.lwjgl.opengl.WGL.wglGetCurrentContext();
renderManagerContext = org.lwjgl.glfw.GLFW.glfwGetCurrentContext();
shareContext();
OsvrClientKitLibrary.osvrClientUpdate(context);
renderParams = new OSVR_RenderParams.ByValue();
renderParams.setAutoSynch(false);
OsvrRenderManagerOpenGLLibrary.osvrRenderManagerGetDefaultRenderParams(renderParams);
grabRIC = new PointerByReference();
retval = OsvrRenderManagerOpenGLLibrary.osvrRenderManagerGetRenderInfoCollection(renderManager, renderParams, grabRIC);
if( retval == 0 ) {
renderInfoCollection = grabRIC.getValue();
OsvrRenderManagerOpenGLLibrary.osvrRenderManagerGetNumRenderInfoInCollection(renderInfoCollection, grabNumInfo);
numRenderInfo = grabNumInfo.getValue();
eyeLeftInfo = new OSVR_RenderInfoOpenGL.ByValue();
eyeRightInfo = new OSVR_RenderInfoOpenGL.ByValue();
eyeLeftInfo.setAutoSynch(false);
eyeRightInfo.setAutoSynch(false);
return true;
}
OsvrRenderManagerOpenGLLibrary.osvrDestroyRenderManager(renderManager);
System.out.println("OSVR Render Manager Info Collection Error: " + retval);
return false;
}
OsvrRenderManagerOpenGLLibrary.osvrDestroyRenderManager(renderManager);
System.out.println("OSVR Open Render Manager Display Error: " + retval);
return false;
}
System.out.println("OSVR Create Render Manager Error: " + retval);
return false;
}
@Override
public OsvrClientKitLibrary.OSVR_ClientContext getVRSystem() {
return context;
}
@Override
public Pointer getCompositor() {
return renderManager;
}
@Override
public String getName() {
return "OSVR";
}
@Override
public VRInputAPI getVRinput() {
return VRinput;
}
@Override
public void setFlipEyes(boolean set) {
flipEyes = set;
}
@Override
public void printLatencyInfoToConsole(boolean set) {
}
@Override
public int getDisplayFrequency() {
return 60; //debug display frequency
}
@Override
public void destroy() {
if( renderManager != null ) OsvrRenderManagerOpenGLLibrary.osvrDestroyRenderManager(renderManager);
if( displayConfig != null ) OsvrDisplayLibrary.osvrClientFreeDisplay(displayConfig);
}
@Override
public boolean isInitialized() {
return initSuccess;
}
@Override
public void reset() {
// TODO: no native OSVR reset function
// may need to take current position and negate it from future values
}
@Override
public void getRenderSize(Vector2f store) {
if( eyeLeftInfo == null || eyeLeftInfo.viewport.width == 0.0 ) {
store.x = 1280f; store.y = 720f;
} else {
store.x = (float)eyeLeftInfo.viewport.width;
store.y = (float)eyeLeftInfo.viewport.height;
}
}
/**
* Read and update the eye info from the underlying OSVR system.
*/
public void getEyeInfo() {
OsvrRenderManagerOpenGLLibrary.osvrRenderManagerGetRenderInfoFromCollectionOpenGL(renderInfoCollection, EYE_LEFT_SIZE, eyeLeftInfo);
OsvrRenderManagerOpenGLLibrary.osvrRenderManagerGetRenderInfoFromCollectionOpenGL(renderInfoCollection, EYE_RIGHT_SIZE, eyeRightInfo);
eyeLeftInfo.read(); eyeRightInfo.read();
}
/*
@Override
public float getFOV(int dir) {
return 105f; //default FOV
}
*/
@Override
public float getInterpupillaryDistance() {
return 0.065f; //default IPD
}
@Override
public Quaternion getOrientation() {
storeRot.set((float)-hmdPose.rotation.data[1],
(float)hmdPose.rotation.data[2],
(float)-hmdPose.rotation.data[3],
(float)hmdPose.rotation.data[0]);
if( storeRot.equals(Quaternion.ZERO) ) storeRot.set(Quaternion.DIRECTION_Z);
return storeRot;
}
@Override
public Vector3f getPosition() {
storePos.x = (float)-hmdPose.translation.data[0];
storePos.y = (float)hmdPose.translation.data[1];
storePos.z = (float)-hmdPose.translation.data[2];
return storePos;
}
@Override
public void getPositionAndOrientation(Vector3f storePos, Quaternion storeRot) {
storePos.x = (float)-hmdPose.translation.data[0];
storePos.y = (float)hmdPose.translation.data[1];
storePos.z = (float)-hmdPose.translation.data[2];
storeRot.set((float)-hmdPose.rotation.data[1],
(float)hmdPose.rotation.data[2],
(float)-hmdPose.rotation.data[3],
(float)hmdPose.rotation.data[0]);
if( storeRot.equals(Quaternion.ZERO) ) storeRot.set(Quaternion.DIRECTION_Z);
}
@Override
public void updatePose() {
if( context == null || displayConfig == null ) return;
OsvrClientKitLibrary.osvrClientUpdate(context);
OsvrDisplayLibrary.osvrClientGetViewerPose(displayConfig, FIRST_VIEWER, hmdPose.getPointer());
VRinput.updateControllerStates();
hmdPose.read();
}
@Override
public Matrix4f getHMDMatrixProjectionLeftEye(Camera cam) {
if( eyeLeftInfo == null ) return cam.getProjectionMatrix();
if( eyeMatrix[EYE_LEFT] == null ) {
FloatBuffer tfb = FloatBuffer.allocate(16);
com.jme3.system.osvr.osvrdisplay.OsvrDisplayLibrary.osvrClientGetViewerEyeSurfaceProjectionMatrixf(displayConfig, 0, (byte)EYE_LEFT, 0, cam.getFrustumNear(), cam.getFrustumFar(), (short)0, tfb);
eyeMatrix[EYE_LEFT] = new Matrix4f();
eyeMatrix[EYE_LEFT].set(tfb.get(0), tfb.get(4), tfb.get(8), tfb.get(12),
tfb.get(1), tfb.get(5), tfb.get(9), tfb.get(13),
tfb.get(2), tfb.get(6), tfb.get(10), tfb.get(14),
tfb.get(3), tfb.get(7), tfb.get(11), tfb.get(15));
}
return eyeMatrix[EYE_LEFT];
}
@Override
public Matrix4f getHMDMatrixProjectionRightEye(Camera cam) {
if( eyeRightInfo == null ) return cam.getProjectionMatrix();
if( eyeMatrix[EYE_RIGHT] == null ) {
FloatBuffer tfb = FloatBuffer.allocate(16);
com.jme3.system.osvr.osvrdisplay.OsvrDisplayLibrary.osvrClientGetViewerEyeSurfaceProjectionMatrixf(displayConfig, 0, (byte)EYE_RIGHT, 0, cam.getFrustumNear(), cam.getFrustumFar(), (short)0, tfb);
eyeMatrix[EYE_RIGHT] = new Matrix4f();
eyeMatrix[EYE_RIGHT].set(tfb.get(0), tfb.get(4), tfb.get(8), tfb.get(12),
tfb.get(1), tfb.get(5), tfb.get(9), tfb.get(13),
tfb.get(2), tfb.get(6), tfb.get(10), tfb.get(14),
tfb.get(3), tfb.get(7), tfb.get(11), tfb.get(15));
}
return eyeMatrix[EYE_RIGHT];
}
@Override
public Vector3f getHMDVectorPoseLeftEye() {
if( hmdPoseLeftEyeVec == null ) {
hmdPoseLeftEyeVec = new Vector3f();
hmdPoseLeftEyeVec.x = 0.065f * -0.5f;
if( flipEyes == false ) hmdPoseLeftEyeVec.x *= -1f; // it seems these need flipping
}
return hmdPoseLeftEyeVec;
}
@Override
public Vector3f getHMDVectorPoseRightEye() {
if( hmdPoseRightEyeVec == null ) {
hmdPoseRightEyeVec = new Vector3f();
hmdPoseRightEyeVec.x = 0.065f * 0.5f;
if( flipEyes == false ) hmdPoseRightEyeVec.x *= -1f; // it seems these need flipping
}
return hmdPoseRightEyeVec;
}
@Override
public Vector3f getSeatedToAbsolutePosition() {
return Vector3f.ZERO;
}
@Override
public Matrix4f getHMDMatrixPoseLeftEye() {
// not actually used internally...
/*if( hmdPoseLeftEye != null ) {
return hmdPoseLeftEye;
} else {
FloatBuffer mat = FloatBuffer.allocate(16);
OsvrDisplayLibrary.osvrClientGetViewerEyeViewMatrixf(displayConfig, FIRST_VIEWER, (byte)EYE_LEFT,
(short)(OsvrMatrixConventionsLibrary.OSVR_MatrixVectorFlags.OSVR_MATRIX_COLVECTORS |
OsvrMatrixConventionsLibrary.OSVR_MatrixOrderingFlags.OSVR_MATRIX_COLMAJOR), tempfb);
hmdPoseLeftEye = new Matrix4f(tempfb.array());
return hmdPoseLeftEye;
}*/
return null;
}
@Override
public Matrix4f getHMDMatrixPoseRightEye() {
// not actually used internally...
/*if( hmdPoseRightEye != null ) {
return hmdPoseRightEye;
} else {
OsvrDisplayLibrary.osvrClientGetViewerEyeViewMatrixf(displayConfig, FIRST_VIEWER, (byte)EYE_RIGHT,
(short)(OsvrMatrixConventionsLibrary.OSVR_MatrixVectorFlags.OSVR_MATRIX_COLVECTORS |
OsvrMatrixConventionsLibrary.OSVR_MatrixOrderingFlags.OSVR_MATRIX_COLMAJOR), tempfb);
hmdPoseRightEye = new Matrix4f(tempfb.array());
return hmdPoseRightEye;
}*/
return null;
}
@Override
public HmdType getType() {
return HmdType.OSVR;
}
}
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