1 files changed, 97 insertions, 82 deletions

diff --git a/xorg-server/exa/exa_migration_mixed.c b/xorg-server/exa/exa_migration_mixed.c
index d1ee9871b..f42c9c233 100644
--- a/xorg-server/exa/exa_migration_mixed.c
+++ b/xorg-server/exa/exa_migration_mixed.c
@@ -31,55 +31,16 @@
 #include "exa_priv.h"
 #include "exa.h"
 
-static void
-exaUploadFallback(PixmapPtr pPixmap, CARD8 *src, int src_pitch)
-{
-    ExaPixmapPriv(pPixmap);
-    RegionPtr damage = DamageRegion (pExaPixmap->pDamage);
-    GCPtr pGC = GetScratchGC (pPixmap->drawable.depth,
-		pPixmap->drawable.pScreen);
-    int nbox, cpp = pPixmap->drawable.bitsPerPixel / 8;
-    DamagePtr backup = pExaPixmap->pDamage;
-    BoxPtr pbox;
-    CARD8 *src2;
-
-    /* We don't want damage optimisations. */
-    pExaPixmap->pDamage = NULL;
-    ValidateGC (&pPixmap->drawable, pGC);
-
-    pbox = REGION_RECTS(damage);
-    nbox = REGION_NUM_RECTS(damage);
-
-    while (nbox--) {
-	src2 = src + pbox->y1 * src_pitch + pbox->x1 * cpp;
-
-	ExaCheckPutImage(&pPixmap->drawable, pGC,
-	    pPixmap->drawable.depth, pbox->x1, pbox->y1,
-	    pbox->x2 - pbox->x1, pbox->y2 - pbox->y1, 0,
-	    ZPixmap, (char*) src2);
-
-	pbox++;
-    }
-
-    FreeScratchGC (pGC);
-    pExaPixmap->pDamage = backup;
-}
-
 void
 exaCreateDriverPixmap_mixed(PixmapPtr pPixmap)
 {
     ScreenPtr pScreen = pPixmap->drawable.pScreen;
     ExaScreenPriv(pScreen);
     ExaPixmapPriv(pPixmap);
-    RegionPtr damage = DamageRegion (pExaPixmap->pDamage);
-    void *sys_buffer = pExaPixmap->sys_ptr;
     int w = pPixmap->drawable.width, h = pPixmap->drawable.height;
     int depth = pPixmap->drawable.depth, bpp = pPixmap->drawable.bitsPerPixel;
     int usage_hint = pPixmap->usage_hint;
-    int sys_pitch = pExaPixmap->sys_pitch;
-    int paddedWidth = sys_pitch;
-    int nbox;
-    BoxPtr pbox;
+    int paddedWidth = pExaPixmap->sys_pitch;
 
     /* Already done. */
     if (pExaPixmap->driverPriv)
@@ -105,50 +66,8 @@ exaCreateDriverPixmap_mixed(PixmapPtr pPixmap)
     if (!pExaPixmap->driverPriv)
 	return;
 
-    pExaPixmap->offscreen = TRUE;
-    pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr = NULL;
-    pExaPixmap->sys_pitch = pPixmap->devKind = 0;
-
-    pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
     (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
 				paddedWidth, NULL);
-
-    /* scratch pixmaps */
-    if (!w || !h)
-	goto finish;
-
-    /* we do not malloc memory by default. */
-    if (!sys_buffer)
-	goto finish;
-
-    if (!pExaScr->info->UploadToScreen)
-	goto fallback;
-
-    pbox = REGION_RECTS(damage);
-    nbox = REGION_NUM_RECTS(damage);
-
-    while (nbox--) {
-	if (!pExaScr->info->UploadToScreen(pPixmap, pbox->x1, pbox->y1, pbox->x2 - pbox->x1,
-		pbox->y2 - pbox->y1, (char *) (sys_buffer) + pbox->y1 * sys_pitch + pbox->x1 * (bpp / 8), sys_pitch))
-	    goto fallback;
-
-	pbox++;
-    }
-
-    goto finish;
-
-fallback:
-    exaUploadFallback(pPixmap, sys_buffer, sys_pitch);
-
-finish:
-    free(sys_buffer);
-
-    /* We no longer need this. */
-    if (pExaPixmap->pDamage) {
-	DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
-	DamageDestroy(pExaPixmap->pDamage);
-	pExaPixmap->pDamage = NULL;
-    }
 }
 
 void
@@ -175,8 +94,16 @@ exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel)
     for (i = 0; i < npixmaps; i++) {
 	PixmapPtr pPixmap = pixmaps[i].pPix;
 	ExaPixmapPriv(pPixmap);
+
 	if (!pExaPixmap->driverPriv)
 	    exaCreateDriverPixmap_mixed(pPixmap);
+
+	if (pExaPixmap->pDamage && exaPixmapIsOffscreen(pPixmap)) {
+	    pPixmap->devKind = pExaPixmap->fb_pitch;
+	    exaCopyDirtyToFb(pixmaps + i);
+	}
+
+	pExaPixmap->offscreen = exaPixmapIsOffscreen(pPixmap);
     }
 }
 
@@ -192,3 +119,91 @@ exaMoveInPixmap_mixed(PixmapPtr pPixmap)
 
     exaDoMigration(pixmaps, 1, TRUE);
 }
+
+/* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we
+ * use the DownloadFromScreen hook to retrieve contents to a copy in system
+ * memory, perform software rendering on that and move back the results with the
+ * UploadToScreen hook (see exaFinishAccess_mixed).
+ */
+void
+exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg)
+{
+    if (!ExaDoPrepareAccess(pPixmap, index)) {
+	ExaPixmapPriv(pPixmap);
+	Bool is_offscreen = exaPixmapIsOffscreen(pPixmap);
+	ExaMigrationRec pixmaps[1];
+
+	/* Do we need to allocate our system buffer? */
+	if (!pExaPixmap->sys_ptr) {
+	    pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch *
+					 pPixmap->drawable.height);
+	    if (!pExaPixmap->sys_ptr)
+		FatalError("EXA: malloc failed for size %d bytes\n",
+			   pExaPixmap->sys_pitch * pPixmap->drawable.height);
+	}
+
+	if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) {
+	    pixmaps[0].as_dst = TRUE;
+	    pixmaps[0].as_src = FALSE;
+	} else {
+	    pixmaps[0].as_dst = FALSE;
+	    pixmaps[0].as_src = TRUE;
+	}
+	pixmaps[0].pPix = pPixmap;
+	pixmaps[0].pReg = pReg;
+
+	if (!pExaPixmap->pDamage && (is_offscreen || !exaPixmapIsPinned(pPixmap))) {
+	    Bool as_dst = pixmaps[0].as_dst;
+
+	    /* Set up damage tracking */
+	    pExaPixmap->pDamage = DamageCreate(NULL, NULL, DamageReportNone,
+					       TRUE, pPixmap->drawable.pScreen,
+					       pPixmap);
+
+	    DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage);
+	    /* This ensures that pending damage reflects the current operation. */
+	    /* This is used by exa to optimize migration. */
+	    DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE);
+
+	    if (is_offscreen) {
+		exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
+			       pPixmap->drawable.height);
+
+		/* We don't know which region of the destination will be damaged,
+		 * have to assume all of it
+		 */
+		if (as_dst) {
+		    pixmaps[0].as_dst = FALSE;
+		    pixmaps[0].as_src = TRUE;
+		    pixmaps[0].pReg = NULL;
+		}
+		pPixmap->devKind = pExaPixmap->fb_pitch;
+		exaCopyDirtyToSys(pixmaps);
+	    }
+
+	    if (as_dst)
+		exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width,
+			       pPixmap->drawable.height);
+	} else if (is_offscreen) {
+	    pPixmap->devKind = pExaPixmap->fb_pitch;
+	    exaCopyDirtyToSys(pixmaps);
+	}
+
+	pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
+	pPixmap->devKind = pExaPixmap->sys_pitch;
+	pExaPixmap->offscreen = FALSE;
+    }
+}
+
+/* Move back results of software rendering on system memory copy of mixed driver
+ * pixmap (see exaPrepareAccessReg_mixed).
+ */
+void exaFinishAccess_mixed(PixmapPtr pPixmap, int index)
+{
+    ExaPixmapPriv(pPixmap);
+
+    if (pExaPixmap->pDamage && exaPixmapIsOffscreen(pPixmap)) {
+	DamageRegionProcessPending(&pPixmap->drawable);
+	exaMoveInPixmap_mixed(pPixmap);
+    }
+}