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dri3: Add GLX_EXT_buffer_age support

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v2: Indent according to Mesa style, reuse sbc instead of making a new
    swap_count field, and actually get a usable back before returning the
    age of the back (fixing updated piglit tests).  Changes by anholt.

Signed-off-by: Adel Gadllah <adel.gadllah@gmail.com>
Reviewed-by: Robert Bragg <robert@sixbynine.org> (v1)
Reviewed-by: Adel Gadllah <adel.gadllah@gmail.com> (v2)
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Adel Gadllah
2014-02-24 20:44:42 +01:00
committed by Eric Anholt
parent 0b02d8a633
commit a69fabc76c
7 changed files with 55 additions and 3 deletions
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33
src/glx/glx_pbuffer.c
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@@ -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