[PATCH] mi: don't thrash resources when displaying the software cursor across screens
Pierre-Loup A. Griffais
pgriffais at nvidia.com
Wed Apr 7 13:52:47 PDT 2010
This changes the DC layer to maintain a persistent set of GCs/pixmaps/pictures
for each pScreen instead of failing to thrash between them when changing
screens.
Signed-off-by: Pierre-Loup A. Griffais <pgriffais at nvidia.com>
---
mi/midispcur.c | 272 +++++++++++++++++++++++---------------------------------
1 files changed, 112 insertions(+), 160 deletions(-)
diff --git a/mi/midispcur.c b/mi/midispcur.c
index 3fb7e02..c5d8f41 100644
--- a/mi/midispcur.c
+++ b/mi/midispcur.c
@@ -59,9 +59,9 @@ static DevPrivateKey miDCScreenKey = &miDCScreenKeyIndex;
static Bool miDCCloseScreen(int index, ScreenPtr pScreen);
-/* per device private data */
-static int miDCSpriteKeyIndex;
-static DevPrivateKey miDCSpriteKey = &miDCSpriteKeyIndex;
+/* per device per-screen private data */
+static int miDCSpriteKeyIndex[MAXSCREENS];
+static DevPrivateKey miDCSpriteKey = miDCSpriteKeyIndex;
typedef struct {
GCPtr pSourceGC, pMaskGC;
@@ -75,10 +75,10 @@ typedef struct {
#endif
} miDCBufferRec, *miDCBufferPtr;
-#define MIDCBUFFER(dev) \
+#define MIDCBUFFER(dev, screen) \
((DevHasCursor(dev)) ? \
- (miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCSpriteKey) : \
- (miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCSpriteKey))
+ (miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCSpriteKey + (screen)->myNum) : \
+ (miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCSpriteKey + (screen)->myNum))
/*
* The core pointer buffer will point to the index of the virtual core pointer
@@ -158,10 +158,6 @@ miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs)
return TRUE;
}
-#define tossGC(gc) (gc ? FreeGC (gc, (GContext) 0) : 0)
-#define tossPix(pix) (pix ? (*pScreen->DestroyPixmap) (pix) : TRUE)
-#define tossPict(pict) (pict ? FreePicture (pict, 0) : 0)
-
static Bool
miDCCloseScreen (int index, ScreenPtr pScreen)
{
@@ -183,7 +179,6 @@ miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
}
#ifdef ARGB_CURSOR
-#define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win))
static VisualPtr
miDCGetWindowVisual (WindowPtr pWin)
@@ -415,12 +410,8 @@ miDCPutBits (
(*maskGC->ops->PushPixels) (maskGC, pPriv->maskBits, pDrawable, w, h, x, y);
}
-#define EnsureGC(gc,win) (gc || miDCMakeGC(&gc, win))
-
static GCPtr
-miDCMakeGC(
- GCPtr *ppGC,
- WindowPtr pWin)
+miDCMakeGC(WindowPtr pWin)
{
GCPtr pGC;
int status;
@@ -431,7 +422,6 @@ miDCMakeGC(
pGC = CreateGC((DrawablePtr)pWin,
GCSubwindowMode|GCGraphicsExposures, gcvals, &status,
(XID)0, serverClient);
- *ppGC = pGC;
return pGC;
}
@@ -456,22 +446,11 @@ miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
miDCScreenKey);
pWin = WindowTable[pScreen->myNum];
- pBuffer = MIDCBUFFER(pDev);
+ pBuffer = MIDCBUFFER(pDev, pScreen);
#ifdef ARGB_CURSOR
if (pPriv->pPicture)
{
- /* see comment in miDCPutUpCursor */
- if (pBuffer->pRootPicture &&
- pBuffer->pRootPicture->pDrawable &&
- pBuffer->pRootPicture->pDrawable->pScreen != pScreen)
- {
- tossPict(pBuffer->pRootPicture);
- pBuffer->pRootPicture = NULL;
- }
-
- if (!EnsurePicture(pBuffer->pRootPicture, &pWin->drawable, pWin))
- return FALSE;
CompositePicture (PictOpOver,
pPriv->pPicture,
NULL,
@@ -484,33 +463,6 @@ miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
else
#endif
{
- /**
- * XXX: Before MPX, the sourceGC and maskGC were attached to the
- * screen, and would switch as the screen switches. With mpx we have
- * the GC's attached to the device now, so each time we switch screen
- * we need to make sure the GC's are allocated on the new screen.
- * This is ... not optimal. (whot)
- */
- if (pBuffer->pSourceGC && pScreen != pBuffer->pSourceGC->pScreen)
- {
- tossGC(pBuffer->pSourceGC);
- pBuffer->pSourceGC = NULL;
- }
-
- if (pBuffer->pMaskGC && pScreen != pBuffer->pMaskGC->pScreen)
- {
- tossGC(pBuffer->pMaskGC);
- pBuffer->pMaskGC = NULL;
- }
-
- if (!EnsureGC(pBuffer->pSourceGC, pWin))
- return FALSE;
- if (!EnsureGC(pBuffer->pMaskGC, pWin))
- {
- FreeGC (pBuffer->pSourceGC, (GContext) 0);
- pBuffer->pSourceGC = 0;
- return FALSE;
- }
miDCPutBits ((DrawablePtr)pWin, pPriv,
pBuffer->pSourceGC, pBuffer->pMaskGC,
x, y, pCursor->bits->width, pCursor->bits->height,
@@ -531,7 +483,7 @@ miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
miDCScreenKey);
- pBuffer = MIDCBUFFER(pDev);
+ pBuffer = MIDCBUFFER(pDev, pScreen);
pSave = pBuffer->pSave;
pWin = WindowTable[pScreen->myNum];
@@ -544,14 +496,7 @@ miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
if (!pSave)
return FALSE;
}
- /* see comment in miDCPutUpCursor */
- if (pBuffer->pSaveGC && pBuffer->pSaveGC->pScreen != pScreen)
- {
- tossGC(pBuffer->pSaveGC);
- pBuffer->pSaveGC = NULL;
- }
- if (!EnsureGC(pBuffer->pSaveGC, pWin))
- return FALSE;
+
pGC = pBuffer->pSaveGC;
if (pSave->drawable.serialNumber != pGC->serialNumber)
ValidateGC ((DrawablePtr) pSave, pGC);
@@ -572,20 +517,13 @@ miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
miDCScreenKey);
- pBuffer = MIDCBUFFER(pDev);
+ pBuffer = MIDCBUFFER(pDev, pScreen);
pSave = pBuffer->pSave;
pWin = WindowTable[pScreen->myNum];
if (!pSave)
return FALSE;
- /* see comment in miDCPutUpCursor */
- if (pBuffer->pRestoreGC && pBuffer->pRestoreGC->pScreen != pScreen)
- {
- tossGC(pBuffer->pRestoreGC);
- pBuffer->pRestoreGC = NULL;
- }
- if (!EnsureGC(pBuffer->pRestoreGC, pWin))
- return FALSE;
+
pGC = pBuffer->pRestoreGC;
if (pWin->drawable.serialNumber != pGC->serialNumber)
ValidateGC ((DrawablePtr) pWin, pGC);
@@ -607,7 +545,7 @@ miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
miDCScreenKey);
- pBuffer = MIDCBUFFER(pDev);
+ pBuffer = MIDCBUFFER(pDev, pScreen);
pSave = pBuffer->pSave;
pWin = WindowTable[pScreen->myNum];
@@ -616,14 +554,7 @@ miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
*/
if (!pSave)
return FALSE;
- /* see comment in miDCPutUpCursor */
- if (pBuffer->pRestoreGC && pBuffer->pRestoreGC->pScreen != pScreen)
- {
- tossGC(pBuffer->pRestoreGC);
- pBuffer->pRestoreGC = NULL;
- }
- if (!EnsureGC(pBuffer->pRestoreGC, pWin))
- return FALSE;
+
pGC = pBuffer->pRestoreGC;
if (pWin->drawable.serialNumber != pGC->serialNumber)
ValidateGC ((DrawablePtr) pWin, pGC);
@@ -662,14 +593,7 @@ miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
0, sourcey, -dx, copyh, x + dx, desty);
}
- /* see comment in miDCPutUpCursor */
- if (pBuffer->pSaveGC && pBuffer->pSaveGC->pScreen != pScreen)
- {
- tossGC(pBuffer->pSaveGC);
- pBuffer->pSaveGC = NULL;
- }
- if (!EnsureGC(pBuffer->pSaveGC, pWin))
- return FALSE;
+
pGC = pBuffer->pSaveGC;
if (pSave->drawable.serialNumber != pGC->serialNumber)
ValidateGC ((DrawablePtr) pSave, pGC);
@@ -766,11 +690,11 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
miDCScreenKey);
pWin = WindowTable[pScreen->myNum];
- pBuffer = MIDCBUFFER(pDev);
+ pBuffer = MIDCBUFFER(pDev, pScreen);
pTemp = pBuffer->pTemp;
if (!pTemp ||
- pTemp->drawable.width != pBuffer->pSave->drawable.width ||
+ pTemp->drawable.width != pBuffer->pSave->drawable.width ||
pTemp->drawable.height != pBuffer->pSave->drawable.height)
{
if (pTemp)
@@ -809,17 +733,9 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
#ifdef ARGB_CURSOR
if (pPriv->pPicture)
{
- /* see comment in miDCPutUpCursor */
- if (pBuffer->pTempPicture &&
- pBuffer->pTempPicture->pDrawable &&
- pBuffer->pTempPicture->pDrawable->pScreen != pScreen)
- {
- tossPict(pBuffer->pTempPicture);
- pBuffer->pTempPicture = NULL;
- }
+ if (!pBuffer->pTempPicture)
+ miDCMakePicture(&pBuffer->pTempPicture, &pTemp->drawable, pWin);
- if (!EnsurePicture(pBuffer->pTempPicture, &pTemp->drawable, pWin))
- return FALSE;
CompositePicture (PictOpOver,
pPriv->pPicture,
NULL,
@@ -832,38 +748,12 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
else
#endif
{
- if (!pBuffer->pPixSourceGC)
- {
- pBuffer->pPixSourceGC = CreateGC ((DrawablePtr)pTemp,
- GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
- if (!pBuffer->pPixSourceGC)
- return FALSE;
- }
- if (!pBuffer->pPixMaskGC)
- {
- pBuffer->pPixMaskGC = CreateGC ((DrawablePtr)pTemp,
- GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
- if (!pBuffer->pPixMaskGC)
- return FALSE;
- }
miDCPutBits ((DrawablePtr)pTemp, pPriv,
pBuffer->pPixSourceGC, pBuffer->pPixMaskGC,
dx, dy, pCursor->bits->width, pCursor->bits->height,
source, mask);
}
- /* see comment in miDCPutUpCursor */
- if (pBuffer->pRestoreGC && pBuffer->pRestoreGC->pScreen != pScreen)
- {
- tossGC(pBuffer->pRestoreGC);
- pBuffer->pRestoreGC = NULL;
- }
- /*
- * copy the temporary pixmap onto the screen
- */
-
- if (!EnsureGC(pBuffer->pRestoreGC, pWin))
- return FALSE;
pGC = pBuffer->pRestoreGC;
if (pWin->drawable.serialNumber != pGC->serialNumber)
ValidateGC ((DrawablePtr) pWin, pGC);
@@ -877,51 +767,113 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
static Bool
miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
{
- miDCBufferPtr pBuffer;
-
- pBuffer = xalloc(sizeof(miDCBufferRec));
- dixSetPrivate(&pDev->devPrivates, miDCSpriteKey, pBuffer);
-
- pBuffer->pSourceGC =
- pBuffer->pMaskGC =
- pBuffer->pSaveGC =
- pBuffer->pRestoreGC =
- pBuffer->pMoveGC =
- pBuffer->pPixSourceGC =
- pBuffer->pPixMaskGC = NULL;
+ miDCBufferPtr pBuffer;
+ WindowPtr pWin;
+ XID gcval = FALSE;
+ int status;
+ int i;
+
+ if (!DevHasCursor(pDev))
+ return TRUE;
+
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ pScreen = screenInfo.screens[i];
+
+ pBuffer = xalloc(sizeof(miDCBufferRec));
+ if (!pBuffer)
+ goto failure;
+
+ dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, pBuffer);
+ pWin = WindowTable[pScreen->myNum];
+
+ pBuffer->pSourceGC = miDCMakeGC(pWin);
+ if (!pBuffer->pSourceGC)
+ goto failure;
+
+ pBuffer->pMaskGC = miDCMakeGC(pWin);
+ if (!pBuffer->pMaskGC)
+ goto failure;
+
+ pBuffer->pSaveGC = miDCMakeGC(pWin);
+ if (!pBuffer->pSaveGC)
+ goto failure;
+
+ pBuffer->pRestoreGC = miDCMakeGC(pWin);
+ if (!pBuffer->pRestoreGC)
+ goto failure;
+
+ pBuffer->pMoveGC = CreateGC ((DrawablePtr)pWin,
+ GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
+ if (!pBuffer->pMoveGC)
+ goto failure;
+
+ pBuffer->pPixSourceGC = CreateGC ((DrawablePtr)pWin,
+ GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
+ if (!pBuffer->pPixSourceGC)
+ goto failure;
+
+ pBuffer->pPixMaskGC = CreateGC ((DrawablePtr)pWin,
+ GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
+ if (!pBuffer->pPixMaskGC)
+ goto failure;
+
#ifdef ARGB_CURSOR
- pBuffer->pRootPicture = NULL;
- pBuffer->pTempPicture = NULL;
+ miDCMakePicture(&pBuffer->pRootPicture, &pWin->drawable, pWin);
+ if (!pBuffer->pRootPicture)
+ goto failure;
+
+ pBuffer->pTempPicture = NULL;
#endif
- pBuffer->pSave = pBuffer->pTemp = NULL;
+
+ // these get (re)allocated lazily depending on the cursor size
+ pBuffer->pSave = pBuffer->pTemp = NULL;
+ }
return TRUE;
+
+failure:
+
+ miDCDeviceCleanup(pDev, pScreen);
+
+ return FALSE;
}
static void
miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
{
miDCBufferPtr pBuffer;
+ int i;
if (DevHasCursor(pDev))
{
- pBuffer = MIDCBUFFER(pDev);
- tossGC (pBuffer->pSourceGC);
- tossGC (pBuffer->pMaskGC);
- tossGC (pBuffer->pSaveGC);
- tossGC (pBuffer->pRestoreGC);
- tossGC (pBuffer->pMoveGC);
- tossGC (pBuffer->pPixSourceGC);
- tossGC (pBuffer->pPixMaskGC);
- tossPix (pBuffer->pSave);
- tossPix (pBuffer->pTemp);
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ pScreen = screenInfo.screens[i];
+
+ pBuffer = MIDCBUFFER(pDev, pScreen);
+
+ if (pBuffer)
+ {
+ if (pBuffer->pSourceGC) FreeGC(pBuffer->pSourceGC, (GContext) 0);
+ if (pBuffer->pMaskGC) FreeGC(pBuffer->pMaskGC, (GContext) 0);
+ if (pBuffer->pSaveGC) FreeGC(pBuffer->pSaveGC, (GContext) 0);
+ if (pBuffer->pRestoreGC) FreeGC(pBuffer->pRestoreGC, (GContext) 0);
+ if (pBuffer->pMoveGC) FreeGC(pBuffer->pMoveGC, (GContext) 0);
+ if (pBuffer->pPixSourceGC) FreeGC(pBuffer->pPixSourceGC, (GContext) 0);
+ if (pBuffer->pPixMaskGC) FreeGC(pBuffer->pPixMaskGC, (GContext) 0);
+
#ifdef ARGB_CURSOR
-#if 0 /* This has been free()d before */
- tossPict (pScreenPriv->pRootPicture);
-#endif
- tossPict (pBuffer->pTempPicture);
+ if (pBuffer->pRootPicture) FreePicture(pBuffer->pRootPicture, 0);
+ if (pBuffer->pTempPicture) FreePicture(pBuffer->pTempPicture, 0);
#endif
- xfree(pBuffer);
- dixSetPrivate(&pDev->devPrivates, miDCSpriteKey, NULL);
+
+ if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);
+ if (pBuffer->pTemp) (*pScreen->DestroyPixmap)(pBuffer->pTemp);
+
+ xfree(pBuffer);
+ dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, NULL);
+ }
+ }
}
}
--
1.7.0
--------------000200030708070706020901--
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