| Name |
| |
| WGL_3DL_stereo_control |
| |
| Name Strings |
| |
| WGL_3DL_stereo_control |
| |
| Contact |
| |
| Seth Williams, 3Dlabs (seth.williams 'at' 3dlabs.com) |
| Harald Smit, 3Dlabs (harald.smit 'at' 3dlabs.com) |
| |
| Status |
| |
| Complete |
| |
| Version |
| |
| Date: 10/05/2005 Revision 1.0 |
| |
| Number |
| |
| 313 |
| |
| Dependencies |
| |
| The extension is written against the OpenGL 2.0 Specification |
| although it should work on any previous OpenGL specification. |
| |
| The WGL_EXT_extensions_string extension is required. |
| |
| Overview |
| |
| The stereo extension provides an interface for manipulating the |
| emitter signal from the video adapter used to drive lcd shutter |
| glasses used for stereoscopic viewing. |
| |
| IP Status |
| |
| None |
| |
| Issues |
| |
| None |
| |
| New Procedures and Functions |
| |
| BOOL wglSetStereoEmitterState3DL(HDC hDC, UINT uState) |
| |
| New Tokens |
| |
| Accepted by the <uState> parameter: |
| |
| WGL_STEREO_EMITTER_ENABLE_3DL 0x2055 |
| WGL_STEREO_EMITTER_DISABLE_3DL 0x2056 |
| WGL_STEREO_POLARITY_NORMAL_3DL 0x2057 |
| WGL_STEREO_POLARITY_INVERT_3DL 0x2058 |
| |
| Additions to Chapter 2 of the OpenGL 2.0 Specification (OpenGL Operation) |
| |
| None |
| |
| Additions to Chapter 3 of the OpenGL 2.0 Specification (Rasterization) |
| |
| None |
| |
| Additions to Chapter 4 of the OpenGL 2.0 Specification (Per-Fragment |
| Operations and the Frame Buffer) |
| |
| None |
| |
| Additions to Chapter 5 of the OpenGL 2.0 Specification (Special Functions) |
| |
| None |
| |
| Additions to Chapter 6 of the OpenGL 2.0 Specification (State and |
| State Requests) |
| |
| None |
| |
| Additions to Appendix A of the OpenGL 2.0 Specification (Invariance) |
| |
| None |
| |
| Additions to the WGL Specification |
| |
| The state of the stereo emitter for video adapters that support |
| stereoscopic headsets can be modified using the following function: |
| |
| BOOL wglSetStereoEmitterState3DL(HDC hDC, UINT uState) |
| |
| <hDC> is a device context for the graphics adapter or a window |
| residing on a monitor whose graphics adapter supports the stereo |
| extension. |
| |
| <uState> is the new state requested and is one and only one of |
| the following values: |
| |
| WGL_STEREO_EMITTER_ENABLE_3DL |
| Turn the stereo emitter output from the video adapter ON. |
| |
| WGL_STEREO_EMITTER_DISABLE_3DL |
| Turn the stereo emitter output from the video adapter OFF. |
| |
| WGL_STEREO_POLARITY_NORMAL_3DL |
| Generate an emitter signal for the stereoscopic headset to show |
| the scene from the left eye's point of view while the right eye's |
| shutter is closed and vice versa. |
| |
| WGL_STEREO_POLARITY_INVERT_3DL |
| Generate an emitter signal for the stereoscopic headset to show |
| the scene from the left eye's point of view while the left eye's |
| shutter is closed and vice versa. |
| |
| A call to wglSetStereoEmitterState is necessary for each state transition |
| required. |
| |
| Dependencies on WGL_EXT_extensions_string |
| |
| Because there is no way to extend wgl, these calls are defined in |
| the ICD and can be called by obtaining the address with |
| wglGetProcAddress. Because this extension is a WGL extension, it |
| is not included in the GL_EXTENSIONS string. Its existence can be |
| determined with the WGL_EXT_extensions_string extension. |
| |
| Errors |
| |
| If the function succeeds, a value of TRUE is returned. If the |
| function fails, a value of FALSE is returned. To get extended |
| error information, call GetLastError. |
| |
| ERROR_DC_NOT_FOUND <hDC> is invalid. |
| |
| ERROR_INVALID_DATA <uState> is invalid. |
| |
| New State |
| |
| None |
| |
| New Implementation Dependent State |
| |
| None |
| |
| Revision History |
| |
| 09/28/2005 0.1 First draft. |
| 10/05/2005 1.0 Initial public release. |
