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GLX/DRI2: add INTEL_swap_event support

Browse source 
This allows clients to easily check for swap completion status in their
main loop.

Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
Reviewed-by: Adam Jackson <ajax@nwnk.net>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Jesse Barnes 2010-01-11 14:56:24 -05:00
commit 84956ca43b
9 changed files with 75 additions and 3 deletions
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24
hw/xfree86/dri2/dri2ext.c
View file

@ -348,6 +348,25 @@ vals_to_card64(CARD32 lo, CARD32 hi)
return (CARD64)hi << 32 | lo;
}
static void
DRI2SwapEvent(ClientPtr client, void *data, int type, CARD64 ust, CARD64 msc,
CARD64 sbc)
{
xDRI2BufferSwapComplete event;
event.type = DRI2EventBase + DRI2_BufferSwapComplete;
event.sequenceNumber = client->sequence;
event.event_type = type;
event.ust_hi = (CARD64)ust >> 32;
event.ust_lo = ust & 0xffffffff;
event.msc_hi = (CARD64)msc >> 32;
event.msc_lo = msc & 0xffffffff;
event.sbc_hi = (CARD64)sbc >> 32;
event.sbc_lo = sbc & 0xffffffff;
WriteEventsToClient(client, 1, (xEvent *)&event);
}
static int
ProcDRI2SwapBuffers(ClientPtr client)
{
@ -368,7 +387,7 @@ ProcDRI2SwapBuffers(ClientPtr client)
remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi);
status = DRI2SwapBuffers(client, pDrawable, target_msc, divisor, remainder,
&swap_target, NULL, pDrawable);
&swap_target, DRI2SwapEvent, pDrawable);
if (status != Success)
return BadDrawable;
@ -608,6 +627,8 @@ static int DRI2DrawableGone(pointer p, XID id)
return Success;
}
int DRI2EventBase;
static void
DRI2ExtensionInit(void)
{
@ -624,6 +645,7 @@ DRI2ExtensionInit(void)
NULL,
StandardMinorOpcode);
DRI2EventBase = dri2Extension->eventBase;
}
extern Bool noDRI2Extension;