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khanat-opennel-code/code/nel/src/3d/stereo_ovr.cpp
kervala 914980875b Changed: Unicode MFC support
2016-12-09 16:04:26 +01:00

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/**
* \file stereo_ovr.cpp
* \brief CStereoOVR
* \date 2013-06-25 22:22GMT
* \author Jan Boon (Kaetemi)
* CStereoOVR
*/
/*
* Copyright (C) 2013 by authors
*
* This file is part of NL3D.
* NL3D is free software: you can redistribute it and/or modify it
* under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* NL3D is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General
* Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with NL3D. If not, see
* <http://www.gnu.org/licenses/>.
*
* Linking this library statically or dynamically with other modules
* is making a combined work based on this library. Thus, the terms
* and conditions of the GNU General Public License cover the whole
* combination.
*
* As a special exception, the copyright holders of this library give
* you permission to link this library with the Oculus SDK to produce
* an executable, regardless of the license terms of the Oculus SDK,
* and distribute linked combinations including the two, provided that
* you also meet the terms and conditions of the license of the Oculus
* SDK. You must obey the GNU General Public License in all respects
* for all of the code used other than the Oculus SDK. If you modify
* this file, you may extend this exception to your version of the
* file, but you are not obligated to do so. If you do not wish to do
* so, delete this exception statement from your version.
*/
#ifdef HAVE_LIBOVR_02
#include "std3d.h"
#include "nel/3d/stereo_ovr.h"
// STL includes
#include <sstream>
// External includes
#define OVR_NO_STDINT
#include <OVR.h>
// NeL includes
// #include <nel/misc/debug.h>
#include "nel/3d/u_camera.h"
#include "nel/3d/u_driver.h"
#include "nel/3d/material.h"
#include "nel/3d/texture_bloom.h"
#include "nel/3d/texture_user.h"
#include "nel/3d/driver_user.h"
#include "nel/3d/u_texture.h"
// Project includes
using namespace std;
// using namespace NLMISC;
namespace NL3D {
extern const char *g_StereoOVR_fp40;
extern const char *g_StereoOVR_arbfp1;
extern const char *g_StereoOVR_ps_2_0;
extern const char *g_StereoOVR_glsl330f;
namespace {
class CStereoOVRLog : public OVR::Log
{
public:
CStereoOVRLog(unsigned logMask = OVR::LogMask_All) : OVR::Log(logMask)
{
}
virtual void LogMessageVarg(OVR::LogMessageType messageType, const char* fmt, va_list argList)
{
if (NLMISC::INelContext::isContextInitialised())
{
char buffer[MaxLogBufferMessageSize];
FormatLog(buffer, MaxLogBufferMessageSize, messageType, fmt, argList);
if (IsDebugMessage(messageType))
NLMISC::INelContext::getInstance().getDebugLog()->displayNL("OVR: %s", buffer);
else
NLMISC::INelContext::getInstance().getInfoLog()->displayNL("OVR: %s", buffer);
}
}
};
CStereoOVRLog *s_StereoOVRLog = NULL;
OVR::Ptr<OVR::DeviceManager> s_DeviceManager;
class CStereoOVRSystem
{
public:
~CStereoOVRSystem()
{
Release();
}
void Init()
{
if (!s_StereoOVRLog)
{
nldebug("Initialize OVR");
s_StereoOVRLog = new CStereoOVRLog();
}
if (!OVR::System::IsInitialized())
OVR::System::Init(s_StereoOVRLog);
if (!s_DeviceManager)
s_DeviceManager = OVR::DeviceManager::Create();
}
void Release()
{
if (s_DeviceManager)
{
nldebug("Release OVR");
s_DeviceManager->Release();
}
s_DeviceManager.Clear();
if (OVR::System::IsInitialized())
OVR::System::Destroy();
if (s_StereoOVRLog)
nldebug("Release OVR Ok");
delete s_StereoOVRLog;
s_StereoOVRLog = NULL;
}
};
CStereoOVRSystem s_StereoOVRSystem;
sint s_DeviceCounter = 0;
}
class CStereoOVRDeviceHandle : public IStereoDeviceFactory
{
public:
// fixme: virtual destructor???
OVR::DeviceEnumerator<OVR::HMDDevice> DeviceHandle;
IStereoDisplay *createDevice() const
{
CStereoOVR *stereo = new CStereoOVR(this);
if (stereo->isDeviceCreated())
return stereo;
delete stereo;
return NULL;
}
};
class CStereoOVRDevicePtr
{
public:
OVR::Ptr<OVR::HMDDevice> HMDDevice;
OVR::Ptr<OVR::SensorDevice> SensorDevice;
OVR::SensorFusion SensorFusion;
OVR::HMDInfo HMDInfo;
};
CStereoOVR::CStereoOVR(const CStereoOVRDeviceHandle *handle) : m_Stage(0), m_SubStage(0), m_OrientationCached(false), m_Driver(NULL), m_SceneTexture(NULL), m_GUITexture(NULL), m_PixelProgram(NULL), m_EyePosition(0.0f, 0.09f, 0.15f), m_Scale(1.0f)
{
++s_DeviceCounter;
m_DevicePtr = new CStereoOVRDevicePtr();
OVR::DeviceEnumerator<OVR::HMDDevice> dh = handle->DeviceHandle;
m_DevicePtr->HMDDevice = dh.CreateDevice();
if (m_DevicePtr->HMDDevice)
{
m_DevicePtr->HMDDevice->GetDeviceInfo(&m_DevicePtr->HMDInfo);
nldebug("OVR: HScreenSize: %f, VScreenSize: %f", m_DevicePtr->HMDInfo.HScreenSize, m_DevicePtr->HMDInfo.VScreenSize);
nldebug("OVR: VScreenCenter: %f", m_DevicePtr->HMDInfo.VScreenCenter);
nldebug("OVR: EyeToScreenDistance: %f", m_DevicePtr->HMDInfo.EyeToScreenDistance);
nldebug("OVR: LensSeparationDistance: %f", m_DevicePtr->HMDInfo.LensSeparationDistance);
nldebug("OVR: InterpupillaryDistance: %f", m_DevicePtr->HMDInfo.InterpupillaryDistance);
nldebug("OVR: HResolution: %i, VResolution: %i", m_DevicePtr->HMDInfo.HResolution, m_DevicePtr->HMDInfo.VResolution);
nldebug("OVR: DistortionK[0]: %f, DistortionK[1]: %f", m_DevicePtr->HMDInfo.DistortionK[0], m_DevicePtr->HMDInfo.DistortionK[1]);
nldebug("OVR: DistortionK[2]: %f, DistortionK[3]: %f", m_DevicePtr->HMDInfo.DistortionK[2], m_DevicePtr->HMDInfo.DistortionK[3]);
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 160 NL3D::CStereoOVR::CStereoOVR : OVR: HScreenSize: 0.149760, VScreenSize: 0.093600
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 161 NL3D::CStereoOVR::CStereoOVR : OVR: VScreenCenter: 0.046800
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 162 NL3D::CStereoOVR::CStereoOVR : OVR: EyeToScreenDistance: 0.041000
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 163 NL3D::CStereoOVR::CStereoOVR : OVR: LensSeparationDistance: 0.063500
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 164 NL3D::CStereoOVR::CStereoOVR : OVR: InterpupillaryDistance: 0.064000
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 165 NL3D::CStereoOVR::CStereoOVR : OVR: HResolution: 1280, VResolution: 800
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 166 NL3D::CStereoOVR::CStereoOVR : OVR: DistortionK[0]: 1.000000, DistortionK[1]: 0.220000
//2013/06/26 05:31:51 DBG 17a0 snowballs_client.exe stereo_ovr.cpp 167 NL3D::CStereoOVR::CStereoOVR : OVR: DistortionK[2]: 0.240000, DistortionK[3]: 0.000000
m_DevicePtr->SensorDevice = m_DevicePtr->HMDDevice->GetSensor();
m_DevicePtr->SensorFusion.AttachToSensor(m_DevicePtr->SensorDevice);
m_DevicePtr->SensorFusion.SetGravityEnabled(true);
m_DevicePtr->SensorFusion.SetPredictionEnabled(true);
m_DevicePtr->SensorFusion.SetYawCorrectionEnabled(true);
m_LeftViewport.init(0.f, 0.f, 0.5f, 1.0f);
m_RightViewport.init(0.5f, 0.f, 0.5f, 1.0f);
}
}
CStereoOVR::~CStereoOVR()
{
if (!m_BarrelMat.empty())
{
m_BarrelMat.getObjectPtr()->setTexture(0, NULL);
m_Driver->deleteMaterial(m_BarrelMat);
}
delete m_PixelProgram;
m_PixelProgram = NULL;
m_Driver = NULL;
if (m_DevicePtr->SensorDevice)
m_DevicePtr->SensorDevice->Release();
m_DevicePtr->SensorDevice.Clear();
if (m_DevicePtr->HMDDevice)
m_DevicePtr->HMDDevice->Release();
m_DevicePtr->HMDDevice.Clear();
delete m_DevicePtr;
m_DevicePtr = NULL;
--s_DeviceCounter;
}
class CPixelProgramOVR : public CPixelProgram
{
public:
struct COVRIndices
{
uint LensCenter;
uint ScreenCenter;
uint Scale;
uint ScaleIn;
uint HmdWarpParam;
};
CPixelProgramOVR()
{
{
CSource *source = new CSource();
source->Profile = glsl330f;
source->Features.MaterialFlags = CProgramFeatures::TextureStages;
source->setSourcePtr(g_StereoOVR_glsl330f);
addSource(source);
}
{
CSource *source = new CSource();
source->Profile = fp40;
source->Features.MaterialFlags = CProgramFeatures::TextureStages;
source->setSourcePtr(g_StereoOVR_fp40);
source->ParamIndices["cLensCenter"] = 0;
source->ParamIndices["cScreenCenter"] = 1;
source->ParamIndices["cScale"] = 2;
source->ParamIndices["cScaleIn"] = 3;
source->ParamIndices["cHmdWarpParam"] = 4;
addSource(source);
}
{
CSource *source = new CSource();
source->Profile = arbfp1;
source->Features.MaterialFlags = CProgramFeatures::TextureStages;
source->setSourcePtr(g_StereoOVR_arbfp1);
source->ParamIndices["cLensCenter"] = 0;
source->ParamIndices["cScreenCenter"] = 1;
source->ParamIndices["cScale"] = 2;
source->ParamIndices["cScaleIn"] = 3;
source->ParamIndices["cHmdWarpParam"] = 4;
addSource(source);
}
{
CSource *source = new CSource();
source->Profile = ps_2_0;
source->Features.MaterialFlags = CProgramFeatures::TextureStages;
source->setSourcePtr(g_StereoOVR_ps_2_0);
source->ParamIndices["cLensCenter"] = 0;
source->ParamIndices["cScreenCenter"] = 1;
source->ParamIndices["cScale"] = 2;
source->ParamIndices["cScaleIn"] = 3;
source->ParamIndices["cHmdWarpParam"] = 4;
addSource(source);
}
}
virtual ~CPixelProgramOVR()
{
}
virtual void buildInfo()
{
CPixelProgram::buildInfo();
m_OVRIndices.LensCenter = getUniformIndex("cLensCenter");
nlassert(m_OVRIndices.LensCenter != std::numeric_limits<uint>::max());
m_OVRIndices.ScreenCenter = getUniformIndex("cScreenCenter");
nlassert(m_OVRIndices.ScreenCenter != std::numeric_limits<uint>::max());
m_OVRIndices.Scale = getUniformIndex("cScale");
nlassert(m_OVRIndices.Scale != std::numeric_limits<uint>::max());
m_OVRIndices.ScaleIn = getUniformIndex("cScaleIn");
nlassert(m_OVRIndices.ScaleIn != std::numeric_limits<uint>::max());
m_OVRIndices.HmdWarpParam = getUniformIndex("cHmdWarpParam");
nlassert(m_OVRIndices.HmdWarpParam != std::numeric_limits<uint>::max());
}
inline const COVRIndices &ovrIndices() { return m_OVRIndices; }
private:
COVRIndices m_OVRIndices;
};
void CStereoOVR::setDriver(NL3D::UDriver *driver)
{
nlassert(!m_PixelProgram);
NL3D::IDriver *drvInternal = (static_cast<CDriverUser *>(driver))->getDriver();
if (drvInternal->supportBloomEffect() && drvInternal->supportNonPowerOfTwoTextures())
{
m_PixelProgram = new CPixelProgramOVR();
if (!drvInternal->compilePixelProgram(m_PixelProgram))
{
m_PixelProgram.kill();
}
}
if (m_PixelProgram)
{
m_Driver = driver;
/*m_BarrelTex = new CTextureBloom(); // lol bloom
m_BarrelTex->setRenderTarget(true);
m_BarrelTex->setReleasable(false);
m_BarrelTex->resize(m_DevicePtr->HMDInfo.HResolution, m_DevicePtr->HMDInfo.VResolution);
m_BarrelTex->setFilterMode(ITexture::Linear, ITexture::LinearMipMapOff);
m_BarrelTex->setWrapS(ITexture::Clamp);
m_BarrelTex->setWrapT(ITexture::Clamp);
drvInternal->setupTexture(*m_BarrelTex);
m_BarrelTexU = new CTextureUser(m_BarrelTex);*/
m_BarrelMat = m_Driver->createMaterial();
m_BarrelMat.initUnlit();
m_BarrelMat.setColor(CRGBA::White);
m_BarrelMat.setBlend (false);
m_BarrelMat.setAlphaTest (false);
NL3D::CMaterial *barrelMat = m_BarrelMat.getObjectPtr();
barrelMat->setShader(NL3D::CMaterial::Normal);
barrelMat->setBlendFunc(CMaterial::one, CMaterial::zero);
barrelMat->setZWrite(false);
barrelMat->setZFunc(CMaterial::always);
barrelMat->setDoubleSided(true);
// barrelMat->setTexture(0, m_BarrelTex);
m_BarrelQuadLeft.V0 = CVector(0.f, 0.f, 0.5f);
m_BarrelQuadLeft.V1 = CVector(0.5f, 0.f, 0.5f);
m_BarrelQuadLeft.V2 = CVector(0.5f, 1.f, 0.5f);
m_BarrelQuadLeft.V3 = CVector(0.f, 1.f, 0.5f);
m_BarrelQuadRight.V0 = CVector(0.5f, 0.f, 0.5f);
m_BarrelQuadRight.V1 = CVector(1.f, 0.f, 0.5f);
m_BarrelQuadRight.V2 = CVector(1.f, 1.f, 0.5f);
m_BarrelQuadRight.V3 = CVector(0.5f, 1.f, 0.5f);
// nlassert(!drvInternal->isTextureRectangle(m_BarrelTex)); // not allowed
m_BarrelQuadLeft.Uv0 = CUV(0.f, 0.f);
m_BarrelQuadLeft.Uv1 = CUV(0.5f, 0.f);
m_BarrelQuadLeft.Uv2 = CUV(0.5f, 1.f);
m_BarrelQuadLeft.Uv3 = CUV(0.f, 1.f);
m_BarrelQuadRight.Uv0 = CUV(0.5f, 0.f);
m_BarrelQuadRight.Uv1 = CUV(1.f, 0.f);
m_BarrelQuadRight.Uv2 = CUV(1.f, 1.f);
m_BarrelQuadRight.Uv3 = CUV(0.5f, 1.f);
}
else
{
nlwarning("VR: No pixel program support");
}
}
bool CStereoOVR::getScreenResolution(uint &width, uint &height)
{
width = m_DevicePtr->HMDInfo.HResolution;
height = m_DevicePtr->HMDInfo.VResolution;
return true;
}
void CStereoOVR::initCamera(uint cid, const NL3D::UCamera *camera)
{
m_OriginalFrustum[cid] = camera->getFrustum();
float ar = (float)m_DevicePtr->HMDInfo.HResolution / ((float)m_DevicePtr->HMDInfo.VResolution * 2.0f);
float fov = 2.0f * atanf((m_DevicePtr->HMDInfo.HScreenSize * 0.5f * 0.5f) / (m_DevicePtr->HMDInfo.EyeToScreenDistance)); //(float)NLMISC::Pi/2.f; // 2.0f * atanf(m_DevicePtr->HMDInfo.VScreenSize / 2.0f * m_DevicePtr->HMDInfo.EyeToScreenDistance);
m_LeftFrustum[cid].initPerspective(fov, ar, camera->getFrustum().Near, camera->getFrustum().Far);
m_RightFrustum[cid] = m_LeftFrustum[cid];
float viewCenter = m_DevicePtr->HMDInfo.HScreenSize * 0.25f;
float eyeProjectionShift = viewCenter - m_DevicePtr->HMDInfo.LensSeparationDistance * 0.5f; // docs say LensSeparationDistance, why not InterpupillaryDistance? related to how the lenses work?
float projectionCenterOffset = (eyeProjectionShift / (m_DevicePtr->HMDInfo.HScreenSize * 0.5f)) * (m_LeftFrustum[cid].Right - m_LeftFrustum[cid].Left); // used logic for this one, but it ends up being the same as the one i made up
nldebug("OVR: projectionCenterOffset = %f", projectionCenterOffset);
m_LeftFrustum[cid].Left -= projectionCenterOffset;
m_LeftFrustum[cid].Right -= projectionCenterOffset;
m_RightFrustum[cid].Left += projectionCenterOffset;
m_RightFrustum[cid].Right += projectionCenterOffset;
// TODO: Clipping frustum should also take into account the IPD
m_ClippingFrustum[cid] = m_LeftFrustum[cid];
m_ClippingFrustum[cid].Left = min(m_LeftFrustum[cid].Left, m_RightFrustum[cid].Left);
m_ClippingFrustum[cid].Right = max(m_LeftFrustum[cid].Right, m_RightFrustum[cid].Right);
}
/// Get the frustum to use for clipping
void CStereoOVR::getClippingFrustum(uint cid, NL3D::UCamera *camera) const
{
camera->setFrustum(m_ClippingFrustum[cid]);
}
/// Get the original frustum of the camera
void CStereoOVR::getOriginalFrustum(uint cid, NL3D::UCamera *camera) const
{
camera->setFrustum(m_OriginalFrustum[cid]);
}
void CStereoOVR::updateCamera(uint cid, const NL3D::UCamera *camera)
{
if (camera->getFrustum().Near != m_LeftFrustum[cid].Near
|| camera->getFrustum().Far != m_LeftFrustum[cid].Far)
CStereoOVR::initCamera(cid, camera);
m_CameraMatrix[cid] = camera->getMatrix();
}
bool CStereoOVR::nextPass()
{
// Do not allow weird stuff.
uint32 width, height;
m_Driver->getWindowSize(width, height);
// nlassert(width == m_DevicePtr->HMDInfo.HResolution);
// nlassert(height == m_DevicePtr->HMDInfo.VResolution);
if (m_Driver->getPolygonMode() == UDriver::Filled)
{
switch (m_Stage) // Previous stage
{
case 0:
m_Stage += 2;
m_SubStage = 0;
// stage 2:
// draw interface 2d (onto render target)
return true;
case 2:
++m_Stage;
m_SubStage = 0;
// stage 3:
// (initBloom)
// clear buffer
// draw scene left
return true;
case 3:
++m_Stage;
m_SubStage = 0;
// stage 4:
// draw scene right
return true;
case 4:
++m_Stage;
m_SubStage = 0;
// stage 5:
// (endBloom)
// draw interface 3d left
return true;
case 5:
++m_Stage;
m_SubStage = 0;
// stage 6:
// draw interface 3d right
return true;
/*case 6:
++m_Stage;
m_SubStage = 0;
// stage 7:
// (endInterfacesDisplayBloom)
// draw interface 2d left
return true;
case 7:
++m_Stage;
m_SubStage = 0;
// stage 8:
// draw interface 2d right
return true;*/
case 6:
m_Stage = 0;
m_SubStage = 0;
// present
m_OrientationCached = false;
return false;
}
}
else
{
switch (m_Stage)
{
case 0:
++m_Stage;
m_SubStage = 0;
return true;
case 1:
m_Stage = 0;
m_SubStage = 0;
return false;
}
}
nlerror("Invalid stage");
m_Stage = 0;
m_SubStage = 0;
m_OrientationCached = false;
return false;
}
const NL3D::CViewport &CStereoOVR::getCurrentViewport() const
{
if (m_Stage == 2) return m_RegularViewport;
else if (m_Stage % 2) return m_LeftViewport;
else return m_RightViewport;
}
const NL3D::CFrustum &CStereoOVR::getCurrentFrustum(uint cid) const
{
if (m_Stage == 2) return m_OriginalFrustum[cid];
else if (m_Stage % 2) return m_LeftFrustum[cid];
else return m_RightFrustum[cid];
}
void CStereoOVR::getCurrentFrustum(uint cid, NL3D::UCamera *camera) const
{
if (m_Stage == 2) camera->setFrustum(m_OriginalFrustum[cid]);
else if (m_Stage % 2) camera->setFrustum(m_LeftFrustum[cid]);
else camera->setFrustum(m_RightFrustum[cid]);
}
void CStereoOVR::getCurrentMatrix(uint cid, NL3D::UCamera *camera) const
{
CMatrix translate;
if (m_Stage == 2) { }
else if (m_Stage % 2) translate.translate(CVector((m_DevicePtr->HMDInfo.InterpupillaryDistance * m_Scale) * -0.5f, 0.f, 0.f));
else translate.translate(CVector((m_DevicePtr->HMDInfo.InterpupillaryDistance * m_Scale) * 0.5f, 0.f, 0.f));
CMatrix mat = m_CameraMatrix[cid] * translate;
if (camera->getTransformMode() == NL3D::UTransformable::RotQuat)
{
camera->setPos(mat.getPos());
camera->setRotQuat(mat.getRot());
}
else
{
// camera->setTransformMode(NL3D::UTransformable::DirectMatrix);
camera->setMatrix(mat);
}
}
bool CStereoOVR::wantClear()
{
switch (m_Stage)
{
case 3:
m_SubStage = 1;
return true;
}
return m_Driver->getPolygonMode() != UDriver::Filled;
}
bool CStereoOVR::wantScene()
{
switch (m_Stage)
{
case 3:
case 4:
m_SubStage = 2;
return true;
}
return m_Driver->getPolygonMode() != UDriver::Filled;
}
bool CStereoOVR::wantInterface3D()
{
switch (m_Stage)
{
case 5:
case 6:
m_SubStage = 3;
return true;
}
return m_Driver->getPolygonMode() != UDriver::Filled;
}
bool CStereoOVR::wantInterface2D()
{
switch (m_Stage)
{
case 2:
m_SubStage = 4;
return true;
}
return m_Driver->getPolygonMode() != UDriver::Filled;
}
/// Returns non-NULL if a new render target was set
bool CStereoOVR::beginRenderTarget()
{
// render target always set before driver clear
// nlassert(m_SubStage <= 1);
// Set GUI render target
if (m_Driver && m_Stage == 2 && (m_Driver->getPolygonMode() == UDriver::Filled))
{
nlassert(!m_GUITexture);
uint32 width, height;
m_Driver->getWindowSize(width, height);
m_GUITexture = m_Driver->getRenderTargetManager().getRenderTarget(width, height, true, UTexture::RGBA8888);
static_cast<CDriverUser *>(m_Driver)->setRenderTarget(*m_GUITexture);
m_Driver->clearBuffers(NLMISC::CRGBA(0, 0, 0, 0));
return true;
}
// Begin 3D scene render target
if (m_Driver && m_Stage == 3 && (m_Driver->getPolygonMode() == UDriver::Filled))
{
nlassert(!m_SceneTexture);
uint32 width, height;
m_Driver->getWindowSize(width, height); // Temporary limitation, TODO: scaling!
m_SceneTexture = m_Driver->getRenderTargetManager().getRenderTarget(width, height);
static_cast<CDriverUser *>(m_Driver)->setRenderTarget(*m_SceneTexture);
return true;
}
return false;
}
void CStereoOVR::setInterfaceMatrix(const NL3D::CMatrix &matrix)
{
m_InterfaceCameraMatrix = matrix;
}
void CStereoOVR::renderGUI()
{
/*CMatrix mat;
mat.translate(m_InterfaceCameraMatrix.getPos());
CVector dir = m_InterfaceCameraMatrix.getJ();
dir.z = 0;
dir.normalize();
if (dir.y < 0)
mat.rotateZ(float(NLMISC::Pi+asin(dir.x)));
else
mat.rotateZ(float(NLMISC::Pi+NLMISC::Pi-asin(dir.x)));
m_Driver->setModelMatrix(mat);*/
m_Driver->setModelMatrix(m_InterfaceCameraMatrix);
{
NLMISC::CLine line(NLMISC::CVector(0, 5, 2), NLMISC::CVector(0, 5, 3));
NL3D::UMaterial mat = m_Driver->createMaterial();
mat.setZWrite(false);
// mat.setZFunc(UMaterial::always); // Not nice!
mat.setDoubleSided(true);
mat.setColor(NLMISC::CRGBA::Red);
mat.setBlend(false);
m_Driver->drawLine(line, mat);
m_Driver->deleteMaterial(mat);
}
{
nlassert(m_GUITexture);
NLMISC::CQuadUV quad;
NL3D::UMaterial umat = m_Driver->createMaterial();
umat.initUnlit();
umat.setColor(NLMISC::CRGBA::White);
umat.setDoubleSided(true);
umat.setBlend(true);
umat.setAlphaTest(false);
NL3D::CMaterial *mat = umat.getObjectPtr();
mat->setShader(NL3D::CMaterial::Normal);
mat->setBlendFunc(CMaterial::one, CMaterial::TBlend::invsrcalpha);
mat->setZWrite(false);
// mat->setZFunc(CMaterial::always); // Not nice
mat->setDoubleSided(true);
mat->setTexture(0, m_GUITexture->getITexture());
// user options
float scale = 1.0f;
float distance = 1.5f;
float offcenter = 0.75f;
float height = scale * distance * 2.0f;
uint32 winw, winh;
m_Driver->getWindowSize(winw, winh);
float width = height * (float)winw / (float)winh;
float bottom = -(height * 0.5f);
float top = (height * 0.5f);
NLMISC::CQuadUV quadUV;
quadUV.V0 = CVector(-(width * 0.5f), distance, -(height * 0.5f));
quadUV.V1 = CVector((width * 0.5f), distance, -(height * 0.5f));
quadUV.V2 = CVector((width * 0.5f), distance, (height * 0.5f));
quadUV.V3 = CVector(-(width * 0.5f), distance, (height * 0.5f));
quadUV.Uv0 = CUV(0.f, 0.f);
quadUV.Uv1 = CUV(1.f, 0.f);
quadUV.Uv2 = CUV(1.f, 1.f);
quadUV.Uv3 = CUV(0.f, 1.f);
const uint nbQuads = 128;
static CVertexBuffer vb;
static CIndexBuffer ib;
vb.setVertexFormat(CVertexBuffer::PositionFlag | CVertexBuffer::TexCoord0Flag);
vb.setPreferredMemory(CVertexBuffer::RAMVolatile, false);
vb.setNumVertices((nbQuads + 1) * 2);
{
CVertexBufferReadWrite vba;
vb.lock(vba);
float radius = distance + offcenter;
float relWidth = width / radius;
float quadWidth = relWidth / (float)nbQuads;
for (uint i = 0; i < nbQuads + 1; ++i)
{
uint vi0 = i * 2;
uint vi1 = vi0 + 1;
float lineH = -(relWidth * 0.5f) + quadWidth * (float)i;
float lineUV = (float)i / (float)(nbQuads);
float left = sin(lineH) * radius;
float forward = cos(lineH) * radius;
vba.setVertexCoord(vi0, left, forward - offcenter, bottom);
vba.setTexCoord(vi0, 0, lineUV, 0.0f);
vba.setVertexCoord(vi1, left, forward - offcenter, top);
vba.setTexCoord(vi1, 0, lineUV, 1.0f);
}
}
ib.setFormat(NL_DEFAULT_INDEX_BUFFER_FORMAT);
ib.setPreferredMemory(CIndexBuffer::RAMVolatile, false);
ib.setNumIndexes(nbQuads * 6);
{
CIndexBufferReadWrite iba;
ib.lock(iba);
for (uint i = 0; i < nbQuads; ++i)
{
uint ti0 = i * 2;
uint ti1 = ti0 + 1;
uint bl = ti0;
uint tl = ti0 + 1;
uint br = ti0 + 2;
uint tr = ti0 + 3;
iba.setTri(ti0 * 3, bl, tl, br);
iba.setTri(ti1 * 3, br, tl, tr);
}
}
IDriver *driver = static_cast<CDriverUser *>(m_Driver)->getDriver();
// m_Driver->setPolygonMode(UDriver::Line);
driver->activeVertexBuffer(vb);
driver->activeIndexBuffer(ib);
driver->renderTriangles(*umat.getObjectPtr(), 0, nbQuads * 2); //renderRawQuads(umat, 0, 128);
// m_Driver->setPolygonMode(UDriver::Filled);
// m_Driver->drawQuad(quadUV, umat);
m_Driver->deleteMaterial(umat);
}
}
/// Returns true if a render target was fully drawn
bool CStereoOVR::endRenderTarget()
{
// after rendering of course
// nlassert(m_SubStage > 1);
// End GUI render target
if (m_Driver && m_Stage == 2 && (m_Driver->getPolygonMode() == UDriver::Filled))
{
// End GUI render target
nlassert(m_GUITexture);
CTextureUser texNull;
(static_cast<CDriverUser *>(m_Driver))->setRenderTarget(texNull);
}
// End of 3D Interface pass left
if (m_Driver && m_Stage == 5 && (m_Driver->getPolygonMode() == UDriver::Filled))
{
// Render 2D GUI in 3D space, assume existing camera is OK
renderGUI();
}
// End of 3D Interface pass right
if (m_Driver && m_Stage == 6 && (m_Driver->getPolygonMode() == UDriver::Filled))
{
// Render 2D GUI in 3D space, assume existing camera is OK
renderGUI();
// Recycle render target
m_Driver->getRenderTargetManager().recycleRenderTarget(m_GUITexture);
m_GUITexture = NULL;
}
// End 3D scene render target
if (m_Driver && m_Stage == 6 && (m_Driver->getPolygonMode() == UDriver::Filled)) // set to 4 to turn off distortion of 2d gui
{
nlassert(m_SceneTexture);
CTextureUser texNull;
(static_cast<CDriverUser *>(m_Driver))->setRenderTarget(texNull);
bool fogEnabled = m_Driver->fogEnabled();
m_Driver->enableFog(false);
m_Driver->setMatrixMode2D11();
CViewport vp = CViewport();
m_Driver->setViewport(vp);
uint32 width, height;
m_Driver->getWindowSize(width, height);
NL3D::IDriver *drvInternal = (static_cast<CDriverUser *>(m_Driver))->getDriver();
NL3D::CMaterial *barrelMat = m_BarrelMat.getObjectPtr();
barrelMat->setTexture(0, m_SceneTexture->getITexture());
drvInternal->activePixelProgram(m_PixelProgram);
float w = float(m_BarrelQuadLeft.V1.x),// / float(width),
h = float(m_BarrelQuadLeft.V2.y),// / float(height),
x = float(m_BarrelQuadLeft.V0.x),/// / float(width),
y = float(m_BarrelQuadLeft.V0.y);// / float(height);
float lensOffset = m_DevicePtr->HMDInfo.LensSeparationDistance * 0.5f;
float lensShift = m_DevicePtr->HMDInfo.HScreenSize * 0.25f - lensOffset;
float lensViewportShift = 4.0f * lensShift / m_DevicePtr->HMDInfo.HScreenSize;
float lensCenterX = x + (w + lensViewportShift * 0.5f) * 0.5f;
float lensCenterY = y + h * 0.5f;
float screenCenterX = x + w * 0.5f;
float screenCenterY = y + h * 0.5f;
float scaleX = (w / 2);
float scaleY = (h / 2);
float scaleInX = (2 / w);
float scaleInY = (2 / h);
drvInternal->setUniform2f(IDriver::PixelProgram,
m_PixelProgram->ovrIndices().LensCenter,
lensCenterX, lensCenterY);
drvInternal->setUniform2f(IDriver::PixelProgram,
m_PixelProgram->ovrIndices().ScreenCenter,
screenCenterX, screenCenterY);
drvInternal->setUniform2f(IDriver::PixelProgram,
m_PixelProgram->ovrIndices().Scale,
scaleX, scaleY);
drvInternal->setUniform2f(IDriver::PixelProgram,
m_PixelProgram->ovrIndices().ScaleIn,
scaleInX, scaleInY);
drvInternal->setUniform4fv(IDriver::PixelProgram,
m_PixelProgram->ovrIndices().HmdWarpParam,
1, m_DevicePtr->HMDInfo.DistortionK);
m_Driver->drawQuad(m_BarrelQuadLeft, m_BarrelMat);
x = w;
lensCenterX = x + (w - lensViewportShift * 0.5f) * 0.5f;
screenCenterX = x + w * 0.5f;
drvInternal->setUniform2f(IDriver::PixelProgram,
m_PixelProgram->ovrIndices().LensCenter,
lensCenterX, lensCenterY);
drvInternal->setUniform2f(IDriver::PixelProgram,
m_PixelProgram->ovrIndices().ScreenCenter,
screenCenterX, screenCenterY);
m_Driver->drawQuad(m_BarrelQuadRight, m_BarrelMat);
drvInternal->activePixelProgram(NULL);
m_Driver->enableFog(fogEnabled);
// Recycle render target
m_Driver->getRenderTargetManager().recycleRenderTarget(m_SceneTexture);
m_SceneTexture = NULL;
return true;
}
return false;
}
NLMISC::CQuat CStereoOVR::getOrientation() const
{
if (m_OrientationCached)
return m_OrientationCache;
OVR::Quatf quatovr = m_DevicePtr->SensorFusion.GetPredictedOrientation();
NLMISC::CMatrix coordsys;
float csys[] = {
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, -1.0f, 0.0f,
0.0f, 1.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f,
};
coordsys.set(csys);
NLMISC::CMatrix matovr;
matovr.setRot(NLMISC::CQuat(quatovr.x, quatovr.y, quatovr.z, quatovr.w));
NLMISC::CMatrix matr;
matr.rotateX(NLMISC::Pi * 0.5f); // fix this properly... :) (note: removing this allows you to use rift while lying down)
NLMISC::CMatrix matnel = matr * matovr * coordsys;
NLMISC::CQuat finalquat = matnel.getRot();
m_OrientationCache = finalquat;
m_OrientationCached = true;
return finalquat;
}
/// Get GUI shift
void CStereoOVR::getInterface2DShift(uint cid, float &x, float &y, float distance) const
{
#if 0
// todo: take into account m_EyePosition
NLMISC::CVector vector = CVector(0.f, -distance, 0.f);
NLMISC::CQuat rot = getOrientation();
rot.invert();
NLMISC::CMatrix mat;
mat.rotate(rot);
//if (m_Stage % 2) mat.translate(CVector(m_DevicePtr->HMDInfo.InterpupillaryDistance * -0.5f, 0.f, 0.f));
//else mat.translate(CVector(m_DevicePtr->HMDInfo.InterpupillaryDistance * 0.5f, 0.f, 0.f));
mat.translate(vector);
CVector proj = CStereoOVR::getCurrentFrustum(cid).project(mat.getPos());
NLMISC::CVector ipd;
if (m_Stage % 2) ipd = CVector(m_DevicePtr->HMDInfo.InterpupillaryDistance * -0.5f, 0.f, 0.f);
else ipd = CVector(m_DevicePtr->HMDInfo.InterpupillaryDistance * 0.5f, 0.f, 0.f);
CVector projipd = CStereoOVR::getCurrentFrustum(cid).project(vector + ipd);
CVector projvec = CStereoOVR::getCurrentFrustum(cid).project(vector);
x = (proj.x + projipd.x - projvec.x - 0.5f);
y = (proj.y + projipd.y - projvec.y - 0.5f);
#elif 1
// Alternative method
// todo: take into account m_EyePosition
NLMISC::CVector vec = CVector(0.f, -distance, 0.f);
NLMISC::CVector ipd;
if (m_Stage % 2) ipd = CVector((m_DevicePtr->HMDInfo.InterpupillaryDistance * m_Scale) * -0.5f, 0.f, 0.f);
else ipd = CVector((m_DevicePtr->HMDInfo.InterpupillaryDistance * m_Scale) * 0.5f, 0.f, 0.f);
NLMISC::CQuat rot = getOrientation();
NLMISC::CQuat modrot = NLMISC::CQuat(CVector(0.f, 1.f, 0.f), NLMISC::Pi);
rot = rot * modrot;
float p = NLMISC::Pi + atan2f(2.0f * ((rot.x * rot.y) + (rot.z * rot.w)), 1.0f - 2.0f * ((rot.y * rot.y) + (rot.w * rot.w)));
if (p > NLMISC::Pi) p -= NLMISC::Pi * 2.0f;
float t = -atan2f(2.0f * ((rot.x * rot.w) + (rot.y * rot.z)), 1.0f - 2.0f * ((rot.z * rot.z) + (rot.w * rot.w)));// // asinf(2.0f * ((rot.x * rot.z) - (rot.w * rot.y)));
CVector rotshift = CVector(p, 0.f, t) * -distance;
CVector proj = CStereoOVR::getCurrentFrustum(cid).project(vec + ipd + rotshift);
x = (proj.x - 0.5f);
y = (proj.y - 0.5f);
#endif
}
void CStereoOVR::setEyePosition(const NLMISC::CVector &v)
{
m_EyePosition = v;
}
const NLMISC::CVector &CStereoOVR::getEyePosition() const
{
return m_EyePosition;
}
void CStereoOVR::setScale(float s)
{
m_EyePosition = m_EyePosition * (s / m_Scale);
m_Scale = s;
}
void CStereoOVR::listDevices(std::vector<CStereoDeviceInfo> &devicesOut)
{
s_StereoOVRSystem.Init();
OVR::DeviceEnumerator<OVR::HMDDevice> devices = s_DeviceManager->EnumerateDevices<OVR::HMDDevice>();
uint id = 1;
do
{
CStereoDeviceInfo deviceInfoOut;
OVR::DeviceInfo deviceInfo;
if (devices.IsAvailable())
{
devices.GetDeviceInfo(&deviceInfo);
CStereoOVRDeviceHandle *handle = new CStereoOVRDeviceHandle();
deviceInfoOut.Factory = static_cast<IStereoDeviceFactory *>(handle);
handle->DeviceHandle = devices;
deviceInfoOut.Class = CStereoDeviceInfo::StereoHMD; // 1; // OVR::HMDDevice
deviceInfoOut.Library = CStereoDeviceInfo::OVR; // "Oculus SDK";
deviceInfoOut.Manufacturer = deviceInfo.Manufacturer;
deviceInfoOut.ProductName = deviceInfo.ProductName;
deviceInfoOut.AllowAuto = true;
stringstream ser;
ser << id;
deviceInfoOut.Serial = ser.str(); // can't get the real serial from the sdk...
devicesOut.push_back(deviceInfoOut);
++id;
}
} while (devices.Next());
}
bool CStereoOVR::isLibraryInUse()
{
nlassert(s_DeviceCounter >= 0);
return s_DeviceCounter > 0;
}
void CStereoOVR::releaseLibrary()
{
nlassert(s_DeviceCounter == 0);
s_StereoOVRSystem.Release();
}
bool CStereoOVR::isDeviceCreated()
{
return m_DevicePtr->HMDDevice != NULL;
}
} /* namespace NL3D */
#endif /* HAVE_LIBOVR */
/* end of file */
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