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Bug #13104: Don't let XAA glyph pixmaps anywhere near video memory.

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Since glyphs are stored in pixmaps now, they can make their way into VRAM,
which invalidates a bunch of fast-path assumptions in the XAA code.  Thus
you end up doing color-expands or WriteBitmap from la-la land and your
aliased glyphs go all funny.

Since XAA isn't ever growing the ability to do sane glyph accel, just force
glyph pixmaps into host memory by catching them at CreatePixmap time.
This commit is contained in:
Adam Jackson
2008-05-06 17:52:37 -04:00
parent a85d3ac87c
commit 718652eaf9
1 changed files with 3 additions and 1 deletions
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4
hw/xfree86/xaa/xaaInit.c
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@@ -342,7 +342,9 @@ XAACreatePixmap(ScreenPtr pScreen, int w, int h, int depth, unsigned usage_hint)
if (!infoRec->offscreenDepthsInitialized)
XAAInitializeOffscreenDepths (pScreen);
if(pScrn->vtSema && (infoRec->offscreenDepths & (1 << (depth - 1))) &&
if(pScrn->vtSema &&
(usage_hint != CREATE_PIXMAP_USAGE_GLYPH_PICTURE) &&
(infoRec->offscreenDepths & (1 << (depth - 1))) &&
(size >= MIN_OFFPIX_SIZE) && !SwitchedOut &&
(!infoRec->maxOffPixWidth || (w <= infoRec->maxOffPixWidth)) &&
(!infoRec->maxOffPixHeight || (h <= infoRec->maxOffPixHeight)) )