Bug 1021

To seamlessly use libovr via GlueGen/Java,
we require compound [array] call-by-value support.
See Bug 1022.

with the last required GlueGen, i.e. Bug 1011 comment 5,
i.e. supporting compound-arrays in structs and allowing enum-c 
identifiers to define array-length, bring-up on GNU/Linux x86_64 
is successful.

Bring-up test only initializes the ovrHmdHandle
data structure by OVR native code.

Current evaluation build compiles all OVR-SDK source
files itself w/o using provided libovr.a.
We also skip the GL dependent renderer of the SDK,
i.e. we prefer to utilize our JOGL 'barrel distortion' renderer.
This eases the 'chicken-egg' problem of OVR SDK dependencies,
i.e. libGL, libGLESv2 .. etc 

Since the OVR source code is C++, we may still have to figure out
how to / and whether we shall link libstdc++ statically 
to remove platform dependencies.

Next bring-up test shall include a working visual demo.

(In reply to comment #2)
> with the last required GlueGen, i.e. Bug 1011 comment 5,
 Ooops - Bug 1022 comment 5,

http://jogamp.org/git/?p=jogl.git;a=shortlog;h=refs/heads/oculusvr

Branch: oculusvr

baf8aba50ea5a73467298bb7d20f9028b8223434
  Add OculusSDK 0.3.2 Source Code w/o Samples, docs or binaries (libs or tools)

44686e9bdc4ce7b603935ef5d908353dac9c956e
  As described in comment 2

40d7d0d18ed11b8dbb0f16137f82eef828b822a4 ...

Re-created oculusvr branch: Please delete previous one!

  <http://jogamp.org/git/?p=jogl.git;a=shortlog;h=refs/heads/oculusvr>

+++

Moved OculusVR SDK to it's own sub-module:

  <http://jogamp.org/git/?p=oculusvr-sdk.git;a=summary>

with merged sources for 
  - Linux
  - Windows
  - OSX

+++

Continue w/ bring-up for Windows ..

b54e87d2cebf6aa0def18f172cbfa111c4efc837
  - Bring-up on Windows w/ Mingw64
  - Solve static linkage of stdc++

d7d8d11abad1e4e17532068333dfe9dddf2942a2
  - Bring-up on OSX w/ clang/clang++ 
  - Split native build: cc, c++, linkage

ae17eca383cce89a000062c3a86e415a6753066b
  - Add note about 'Oculus VR Rift SDK Software License' in LICENSE.txt

- Merged branch oculusvr -> master, ..
- Removed branch oculusvr

36327e24cf586b50bf18e87d7d13d53eb41cf1d9

Add OculusVR distortion renderer (single FBO and dual FBO)

Screenshots:
  <http://jogamp.org/files/screenshots/oculusvr/ovr-snap03.png>
  <http://jogamp.org/files/screenshots/oculusvr/>

Adoption (aka usage) is quite simple, see:
  <http://jogamp.org/git/?p=jogl.git;a=blob;f=src/test/com/jogamp/opengl/test/junit/jogl/stereo/ovr/OVRDemo01.java;h=c20af1389c2351e566f0b1823a97072e6016f630;hb=36327e24cf586b50bf18e87d7d13d53eb41cf1d9>

It uses the new support classes to render stereo manually w/ all the distortions.

The sensors shall work implicit via the 'eye pose'
and the derived modelview matrix.
However, we have to see how that works w/ 'rotating the head',
no DK2 available here.

In case more stereo renderer are required,
we shall add subsequent bug reports.

Closing for now.

Commit d44e8ada30d62149c5d4d4b8fdba7cc33f8c765b:

Refine API in regards to proper package names, interface
and high-level access to eye specific constant parameter
and variable eye movement.

+++

Commit 36327e24cf586b50bf18e87d7d13d53eb41cf1d9 introduced 'GLEventListener2'

Move javax.media.opengl.GLEventListener2
  -> com.jogamp.opengl.util.CustomRendererListener
    -> com.jogamp.opengl.util.stereo.StereoRendererListener

StereoRendererListener adds stereoscopic specific:

  public void reshapeEye(final GLAutoDrawable drawable, final int x, final int y, final int width, final int height,
                         final EyeParameter eyeParam, final EyePose eyePose);

.. see below.

++

Add com.jogamp.opengl.util.stereo:
  - EyeParameter (Constant eye parameters, like IPD and FOV)
  - EyePose (Current eye position and orientation)

+++

Add com.jogamp.opengl.math.FovHVHalves to support
non-centered bi-directional FOV for lenses.

Add respective FloatUtil.makePerspective(.. FovHVHalves fovhv ) variant.

Commit 62bc3219736ea003e69d8a63dc4ce29841d4129e

Turns out that using bilinear texture filtering w/o multisampling is 'good enough' ..

- OVRSBSRenderer*:
  - Add texture filtering parameter (bilinear/none)

  - Adjust FBO texture params (alpha, filtering)
    No alpha needed in FBO sink/target!

- Demo: Pass all parameters w/ arguments, use sane good defaults.

Make OVR access vendor agnostic: 
Package 'com.jogamp.opengl.util.stereo' contains all public interfaces/classes

Renamed interfaces:
  CustomRendererListener -> CustomGLEventListener
  StereoRendererListener -> StereoGLEventListener

New vendor agnostic 'stuff' in com.jogamp.opengl.util.stereo:
  1 - StereoDeviceFactory
    To create a vendor specific StereoDeviceFactory instance,
    which creates the StereoDevice.

  2 - StereoDevice
    For vendor specific implementation.
    Can create StereoDeviceRenderer.

  3 - StereoDeviceRenderer
    For vendor specific implementation.

  4 - StereoClientRenderer
    Vendor agnostic client StereoGLEventListener renderer,
    using a StereoDeviceRenderer.
    Now supports multiple StereoGLEventListener, via add/remove.

- MovieSBSStereo demo-able via StereoDemo01
  can show SBS 3D movies.

I did another round of abstraction
adding generic impl. of StereoDevice and StereoDeviceRenderer
and isolating the lense distortion math from the OVR SDK[1].

The generic impl. may utilize:
  - monoscopic display (*)
  - stereoscopic display (*)
    - Side-By-Side (SBS) (*)
      - without lenses (*)
      - with lenses (*)
    - Other techniques 
      - OpenGL Quad Stereo Buffer (+)
      - Top-Bottom (+) 
      - Interlaced (+)
      - Color Separation (+)

Goal is to harmonize stereo rendering w/ this package.

Note, the isolating lense distortion math from the OVR SDK[1]
is bound to the SDK's license since I have copied parts of it.
Hence we may only be able to distribute this part 
within the oculusvr-sdk sub-module due to it's license
which sort of forbids deploying only parts IMHO.

(In reply to comment #12)

> The generic impl. may utilize:
>   - monoscopic display (*)
>   - stereoscopic display (*)
>     - Side-By-Side (SBS) (*)
>       - without lenses (*)
>       - with lenses (*)

Done.

commit jogl 38e51e4a5f6f35c658df10f6d48a33e3ffaea2f3

Bug 1021: Add GenericStereoDevice* Supporting custom configurations; Hook-in oculusvr-sdk java distortion-mesh calculation if available

StereoDeviceFactory support new GenericStereoDeviceFactory, with it's GenericStereoDevice and GenericStereoDeviceRenderer.

GenericStereoDevice maintains different configurations, triggered either by passing a GenericStereoDevice.Config
instance directly or by the device-index parameter:

  - 0: monoscopi device: No post-processing

  - 1: stereoscopic device SBS: No post-processing

  - 2: stereoscopic device SBS + Lenses: Distortion post-processing
       (only available w/ oculusvr-sdk sub-module)

Producing a 'GenericStereoDevice.Config' instance is self containing
and may extend if supporting more device types like top-bottom, interlaced etc.

StereoDemo01 handles all use-cases and may be used as a test-bed
to add and experiment with stereoscopy, devices and settings.

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

commit oculusvr-sdk a18c0cec906c4ac8c171d9000fd1c54e9302c9a4

Add java code of DistortionMeshProducer for lens usage, as included in Oculus VR RIFT SDK 0.3.2 (w/ dependency on JOGL)

This code has been added to the oculusvr-sdk sub-module
due to the unclear license situation.

While including these parts w/ the whole SDK,
we do not violate the RIFT SDK licence - to our knowledge.

+++

Code implements JOGL's
'jogamp.opengl.util.stereo.DistortionMesh.Producer' interface.

The implementation heavily uses RIFT SDK mathematical equations,
comments, algorithms and constants (DK1).

RIFT SDK C++ code has been partially ported to Java.

Purpose it to add a development testbed for JOGL
without requiring to bind to the native SDL library
and to experiment w/ some parameters.

This module may be used for educational purposes with JOGL's
  'jogamp.opengl.util.stereo.GenericStereoDevice'

If 'compiled in' with the SDK, reflection it utilized
in one of GenericStereoDevice configuration to load this functionality.

This module is not useful for real VR integration,
since it missies proper parameter detection
as well as sensor support.

For real VR integration, the fully fledged
'jogamp.opengl.oculusvr.OVRStereoDevice' shall be used instead.

The latter is part of JOGL and binds dynamically into the RIFT SDK
native library, which is provided within this sub-module (oculusvr-sdk).

8be4b87a9740229f09b1dc2b7265e3e73c4397dd
  Fix OculusVR detection, need to probe HMD count, 
  otherwise native SDK code crashes w/ NPE

609b3f6d28bb13b589cde815acdb0e72e58ebe44:

  - StereoDevice.DeviceType: Add API doc
    
  - StereoDevice: Add getFactory()
    
  - GenericStereoDevice
    - Use common static vars for configurations for simplicity
    
    - Fix createRenderer(..)'s eyeViewport in case no post-processing
      is performed, i.e. needs viewport X offset.
    
  - StereoDemo01
    - Use 'movie' eyePosition instead of default if:
      - using a movie player _and_ using lenses!
    
    - Fix NEWT window pixel-unit size after window creation!