diff options
Diffstat (limited to 'src/glx/glx_pbuffer.c')
| -rw-r--r-- | src/glx/glx_pbuffer.c | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/src/glx/glx_pbuffer.c b/src/glx/glx_pbuffer.c index 978730cecb3..0cd05545786 100644 --- a/src/glx/glx_pbuffer.c +++ b/src/glx/glx_pbuffer.c @@ -285,6 +285,10 @@ GetDrawableAttribute(Display * dpy, GLXDrawable drawable, unsigned int num_attributes; GLboolean use_glx_1_3; +#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) + __GLXDRIdrawable *pdraw; +#endif + if (dpy == NULL) return 0; @@ -311,6 +315,32 @@ GetDrawableAttribute(Display * dpy, GLXDrawable drawable, if (!opcode) return 0; +#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) + pdraw = GetGLXDRIDrawable(dpy, drawable); + + if (attribute == GLX_BACK_BUFFER_AGE_EXT) { + struct glx_screen *psc = pdraw->psc; + struct glx_context *gc = __glXGetCurrentContext(); + + /* The GLX_EXT_buffer_age spec says: + * + * "If querying GLX_BACK_BUFFER_AGE_EXT and <draw> is not bound to + * the calling thread's current context a GLXBadDrawable error is + * generated." + */ + if (gc == NULL || gc->currentDpy != dpy || + (gc->currentDrawable != drawable && gc->currentReadable != drawable)) { + __glXSendError(dpy, GLXBadDrawable, drawable, X_GLXGetDrawableAttributes, false); + return 0; + } + + if (psc->driScreen->getBufferAge != NULL) + *value = psc->driScreen->getBufferAge(pdraw); + + return 0; + } +#endif + LockDisplay(dpy); if (use_glx_1_3) { @@ -350,9 +380,6 @@ GetDrawableAttribute(Display * dpy, GLXDrawable drawable, _XEatData(dpy, length); } else { -#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) - __GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable); -#endif _XRead(dpy, (char *) data, length * sizeof(CARD32)); /* Search the set of returned attributes for the attribute requested by |