diff options
Diffstat (limited to 'hw/xfree86/dri2/dri2.h')
| -rw-r--r-- | hw/xfree86/dri2/dri2.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/hw/xfree86/dri2/dri2.h b/hw/xfree86/dri2/dri2.h index 847e57c68..9d7d6dc80 100644 --- a/hw/xfree86/dri2/dri2.h +++ b/hw/xfree86/dri2/dri2.h @@ -100,4 +100,22 @@ extern _X_EXPORT int DRI2CopyRegion(DrawablePtr pDraw, unsigned int dest, unsigned int src); +/** + * Determine the major and minor version of the DRI2 extension. + * + * Provides a mechanism to other modules (e.g., 2D drivers) to determine the + * version of the DRI2 extension. While it is possible to peek directly at + * the \c XF86ModuleData from a layered module, such a module will fail to + * load (due to an unresolved symbol) if the DRI2 extension is not loaded. + * + * \param major Location to store the major verion of the DRI2 extension + * \param minor Location to store the minor verion of the DRI2 extension + * + * \note + * This interface was added some time after the initial release of the DRI2 + * module. Layered modules that wish to use this interface must first test + * its existance by calling \c xf86LoaderCheckSymbol. + */ +extern _X_EXPORT void DRI2Version(int *major, int *minor); + #endif |