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-rw-r--r--exa/exa_render.c228
1 files changed, 228 insertions, 0 deletions
diff --git a/exa/exa_render.c b/exa/exa_render.c
index da8140102..b480c6d05 100644
--- a/exa/exa_render.c
+++ b/exa/exa_render.c
@@ -51,6 +51,9 @@ static void exaCompositeFallbackPictDesc(PicturePtr pict, char *string, int n)
case PICT_a8r8g8b8:
snprintf(format, 20, "ARGB8888");
break;
+ case PICT_x8r8g8b8:
+ snprintf(format, 20, "XRGB8888");
+ break;
case PICT_r5g6b5:
snprintf(format, 20, "RGB565 ");
break;
@@ -329,6 +332,231 @@ exaTryDriverSolidFill(PicturePtr pSrc,
}
static int
+exaTryDriverCompositeRects(CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pDst,
+ int nrect,
+ ExaCompositeRectPtr rects)
+{
+ ExaScreenPriv (pDst->pDrawable->pScreen);
+ int src_off_x, src_off_y, dst_off_x, dst_off_y;
+ PixmapPtr pSrcPix, pDstPix;
+ ExaPixmapPrivPtr pSrcExaPix, pDstExaPix;
+ struct _Pixmap scratch;
+ ExaMigrationRec pixmaps[2];
+
+ if (!pExaScr->info->PrepareComposite)
+ return -1;
+
+ pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable);
+ pSrcExaPix = ExaGetPixmapPriv(pSrcPix);
+
+ pDstPix = exaGetDrawablePixmap(pDst->pDrawable);
+ pDstExaPix = ExaGetPixmapPriv(pDstPix);
+
+ /* Check whether the accelerator can use these pixmaps.
+ * FIXME: If it cannot, use temporary pixmaps so that the drawing
+ * happens within limits.
+ */
+ if (pSrcExaPix->accel_blocked ||
+ pDstExaPix->accel_blocked)
+ {
+ return -1;
+ }
+
+ if (pExaScr->info->CheckComposite &&
+ !(*pExaScr->info->CheckComposite) (op, pSrc, NULL, pDst))
+ {
+ return -1;
+ }
+
+ exaGetDrawableDeltas (pDst->pDrawable, pDstPix, &dst_off_x, &dst_off_y);
+
+ pixmaps[0].as_dst = TRUE;
+ pixmaps[0].as_src = exaOpReadsDestination(op);
+ pixmaps[0].pPix = pDstPix;
+ pixmaps[0].pReg = NULL;
+ pixmaps[1].as_dst = FALSE;
+ pixmaps[1].as_src = TRUE;
+ pixmaps[1].pPix = pSrcPix;
+ pixmaps[1].pReg = NULL;
+ exaDoMigration(pixmaps, 2, TRUE);
+
+ pSrcPix = exaGetOffscreenPixmap (pSrc->pDrawable, &src_off_x, &src_off_y);
+ if (!exaPixmapIsOffscreen(pDstPix))
+ return 0;
+
+ if (!pSrcPix && pExaScr->info->UploadToScratch)
+ {
+ pSrcPix = exaGetDrawablePixmap (pSrc->pDrawable);
+ if ((*pExaScr->info->UploadToScratch) (pSrcPix, &scratch))
+ pSrcPix = &scratch;
+ }
+
+ if (!pSrcPix)
+ return 0;
+
+ if (!(*pExaScr->info->PrepareComposite) (op, pSrc, NULL, pDst, pSrcPix,
+ NULL, pDstPix))
+ return -1;
+
+ while (nrect--)
+ {
+ INT16 xDst = rects->xDst + pDst->pDrawable->x;
+ INT16 yDst = rects->yDst + pDst->pDrawable->y;
+ INT16 xSrc = rects->xSrc + pSrc->pDrawable->x;
+ INT16 ySrc = rects->ySrc + pSrc->pDrawable->y;
+
+ RegionRec region;
+ BoxPtr pbox;
+ int nbox;
+
+ if (!miComputeCompositeRegion (&region, pSrc, NULL, pDst,
+ xSrc, ySrc, 0, 0, xDst, yDst,
+ rects->width, rects->height))
+ goto next_rect;
+
+ REGION_TRANSLATE(pScreen, &region, dst_off_x, dst_off_y);
+
+ nbox = REGION_NUM_RECTS(&region);
+ pbox = REGION_RECTS(&region);
+
+ xSrc = xSrc + src_off_x - xDst - dst_off_x;
+ ySrc = ySrc + src_off_y - yDst - dst_off_y;
+
+ while (nbox--)
+ {
+ (*pExaScr->info->Composite) (pDstPix,
+ pbox->x1 + xSrc,
+ pbox->y1 + ySrc,
+ 0, 0,
+ pbox->x1,
+ pbox->y1,
+ pbox->x2 - pbox->x1,
+ pbox->y2 - pbox->y1);
+ pbox++;
+ }
+
+ next_rect:
+ REGION_UNINIT(pDst->pDrawable->pScreen, &region);
+
+ rects++;
+ }
+
+ (*pExaScr->info->DoneComposite) (pDstPix);
+ exaMarkSync(pDst->pDrawable->pScreen);
+
+ return 1;
+}
+
+/**
+ * Copy a number of rectangles from source to destination in a single
+ * operation. This is specialized for building a glyph mask: we don'y
+ * have a mask argument because we don't need it for that, and we
+ * don't have he special-case fallbacks found in exaComposite() - if the
+ * driver can support it, we use the driver functionality, otherwise we
+ * fallback straight to software.
+ */
+void
+exaCompositeRects(CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pDst,
+ int nrect,
+ ExaCompositeRectPtr rects)
+{
+ PixmapPtr pPixmap = exaGetDrawablePixmap(pDst->pDrawable);
+ ExaPixmapPriv(pPixmap);
+
+ int xoff, yoff;
+ int x1 = MAXSHORT;
+ int y1 = MAXSHORT;
+ int x2 = MINSHORT;
+ int y2 = MINSHORT;
+ RegionRec region;
+ RegionPtr pending_damage;
+ BoxRec box;
+ int n;
+ ExaCompositeRectPtr r;
+
+ /* We have to manage the damage ourselves, since CompositeRects isn't
+ * something in the screen that can be managed by the damage extension,
+ * and EXA depends on damage to track what needs to be migrated between
+ * offscreen and onscreen.
+ */
+
+ /* Compute the overall extents of the composited region - we're making
+ * the assumption here that we are compositing a bunch of glyphs that
+ * cluster closely together and damaging each glyph individually would
+ * be a loss compared to damaging the bounding box.
+ */
+ n = nrect;
+ r = rects;
+ while (n--) {
+ int rect_x2 = r->xDst + r->width;
+ int rect_y2 = r->yDst + r->width;
+
+ if (r->xDst < x1) x1 = r->xDst;
+ if (r->xDst < y1) y1 = r->xDst;
+ if (rect_x2 > x2) x2 = rect_x2;
+ if (rect_y2 > y2) y2 = rect_y2;
+
+ r++;
+ }
+
+ if (x2 <= x1 && y2 <= y1)
+ return;
+
+ box.x1 = x1;
+ box.x2 = x2 < MAXSHORT ? x2 : MAXSHORT;
+ box.y1 = y1;
+ box.y2 = y2 < MAXSHORT ? y2 : MAXSHORT;
+
+ /* The pixmap migration code relies on pendingDamage indicating
+ * the bounds of the current rendering, so we need to force
+ * the actual damage into that region before we do anything, and
+ * (see use of DamagePendingRegion in exaCopyDirty)
+ */
+
+ REGION_INIT(pScreen, &region, &box, 1);
+
+ exaGetDrawableDeltas(pDst->pDrawable, pPixmap, &xoff, &yoff);
+
+ REGION_TRANSLATE(pScreen, &region, xoff, yoff);
+ pending_damage = DamagePendingRegion(pExaPixmap->pDamage);
+ REGION_UNION(pScreen, pending_damage, pending_damage, &region);
+ REGION_TRANSLATE(pScreen, &region, -xoff, -yoff);
+
+ /************************************************************/
+
+ ValidatePicture (pSrc);
+ ValidatePicture (pDst);
+
+ if (exaTryDriverCompositeRects(op, pSrc, pDst, nrect, rects) != 1) {
+ n = nrect;
+ r = rects;
+ while (n--) {
+ ExaCheckComposite (op, pSrc, NULL, pDst,
+ r->xSrc, r->ySrc,
+ 0, 0,
+ r->xDst, r->yDst,
+ r->width, r->height);
+ r++;
+ }
+ }
+
+ /************************************************************/
+
+ /* Now we have to flush the damage out from pendingDamage => damage
+ * Calling DamageDamageRegion has that effect. (We could pass
+ * in an empty region here, but we pass in the same region we
+ * use above; the effect is the same.)
+ */
+
+ DamageDamageRegion(pDst->pDrawable, &region);
+ REGION_UNINIT(pScreen, &region);
+}
+
+static int
exaTryDriverComposite(CARD8 op,
PicturePtr pSrc,
PicturePtr pMask,
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-05 18:41:06 +0000