andreacavalli/xserver-multidpi
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mi: Only register sprite block handler when needed

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miSpriteBlockHandler takes about 10us in arm each time BlockHandlers are
called. To eliminate that overhead from xserver side only register the
BlockHandler when there actually is any cursor down.

Signed-off-by: Pauli Nieminen <ext-pauli.nieminen@nokia.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
This commit is contained in:
Pauli Nieminen 2010-12-30 19:19:40 +02:00 committed by Daniel Stone
parent 4f6e3b0f37
commit 13ac3deedb
1 changed files with 25 additions and 10 deletions
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35
mi/misprite.c
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@ -255,6 +255,15 @@ static void miSpriteSaveUnderCursor(DeviceIntPtr pDev,
static void miSpriteRestoreCursor(DeviceIntPtr pDev,
ScreenPtr pScreen);
static void
miSpriteRegisterBlockHandler(ScreenPtr pScreen, miSpriteScreenPtr pScreenPriv)
{
if (!pScreenPriv->BlockHandler) {
pScreenPriv->BlockHandler = pScreen->BlockHandler;
pScreen->BlockHandler = miSpriteBlockHandler;
}
}
static void
miSpriteReportDamage (DamagePtr pDamage, RegionPtr pRegion, void *closure)
{
@ -332,7 +341,7 @@ miSpriteInitialize (ScreenPtr pScreen,
pScreenPriv->InstallColormap = pScreen->InstallColormap;
pScreenPriv->StoreColors = pScreen->StoreColors;
pScreenPriv->BlockHandler = pScreen->BlockHandler;
pScreenPriv->BlockHandler = NULL;
pScreenPriv->DeviceCursorInitialize = pScreen->DeviceCursorInitialize;
pScreenPriv->DeviceCursorCleanup = pScreen->DeviceCursorCleanup;
@ -359,8 +368,6 @@ miSpriteInitialize (ScreenPtr pScreen,
pScreen->InstallColormap = miSpriteInstallColormap;
pScreen->StoreColors = miSpriteStoreColors;
pScreen->BlockHandler = miSpriteBlockHandler;
return TRUE;
}
@ -382,7 +389,6 @@ miSpriteCloseScreen (int i, ScreenPtr pScreen)
pScreen->GetImage = pScreenPriv->GetImage;
pScreen->GetSpans = pScreenPriv->GetSpans;
pScreen->SourceValidate = pScreenPriv->SourceValidate;
pScreen->BlockHandler = pScreenPriv->BlockHandler;
pScreen->InstallColormap = pScreenPriv->InstallColormap;
pScreen->StoreColors = pScreenPriv->StoreColors;
@ -555,12 +561,7 @@ miSpriteBlockHandler (int i, pointer blockData, pointer pTimeout,
miSpriteScreenPtr pPriv = GetSpriteScreen(pScreen);
DeviceIntPtr pDev;
miCursorInfoPtr pCursorInfo;
SCREEN_PROLOGUE(pPriv, pScreen, BlockHandler);
(*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
SCREEN_EPILOGUE(pPriv, pScreen, BlockHandler);
Bool WorkToDo = FALSE;
for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
{
@ -587,9 +588,20 @@ miSpriteBlockHandler (int i, pointer blockData, pointer pTimeout,
{
SPRITE_DEBUG (("BlockHandler restore\n"));
miSpriteRestoreCursor (pDev, pScreen);
if (!pCursorInfo->isUp)
WorkToDo = TRUE;
}
}
}
SCREEN_PROLOGUE(pPriv, pScreen, BlockHandler);
(*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
if (WorkToDo)
SCREEN_EPILOGUE(pPriv, pScreen, BlockHandler);
else
pPriv->BlockHandler = NULL;
}
static void
@ -798,6 +810,8 @@ miSpriteSetCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
if (!pPointer->shouldBeUp)
pScreenPriv->numberOfCursors++;
pPointer->shouldBeUp = TRUE;
if (!pPointer->isUp)
miSpriteRegisterBlockHandler(pScreen, pScreenPriv);
if (pPointer->x == x &&
pPointer->y == y &&
pPointer->pCursor == pCursor &&
@ -898,6 +912,7 @@ miSpriteRemoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen)
pCursorInfo = MISPRITE(pDev);
miSpriteIsDown(pCursorInfo);
miSpriteRegisterBlockHandler(pScreen, pScreenPriv);
pCursorInfo->pCacheWin = NullWindow;
miSpriteDisableDamage(pScreen, pScreenPriv);
if (!miDCRestoreUnderCursor(pDev,