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Align scratch area offsets to the offscreen byte alignment.

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This commit is contained in:
Eric Anholt 2004-06-10 09:50:59 +00:00
parent cf3f95d216
commit c3bc6dd551
1 changed files with 14 additions and 2 deletions
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16
hw/kdrive/ati/ati_draw.c
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@ -85,7 +85,6 @@ ATIDrawSetup(ScreenPtr pScreen)
KdScreenPriv(pScreen);
ATIScreenInfo(pScreenPriv);
ATICardInfo(pScreenPriv);
char *mmio = atic->reg_base;
RING_LOCALS;
/* XXX: this shouldn't be necessary, but fixes some R128 composite
@ -605,7 +604,9 @@ ATIUploadToScratch(PixmapPtr pSrc, PixmapPtr pDst)
* KAA flag we check for (and supported in kaa.c in general) since many
* older bits of hardware are going to want POT pitches.
*/
w = 1 << (ATILog2(pSrc->drawable.width - 1) + 1);
w = pSrc->drawable.width;
if (atis->kaa.flags & KAA_OFFSCREEN_ALIGN_POT)
w = 1 << (ATILog2(w - 1) + 1);
dst_pitch = (w * pSrc->drawable.bitsPerPixel / 8 +
atis->kaa.offscreenPitch - 1) & ~(atis->kaa.offscreenPitch - 1);
@ -614,6 +615,9 @@ ATIUploadToScratch(PixmapPtr pSrc, PixmapPtr pDst)
ATI_FALLBACK(("Pixmap too large for scratch (%d,%d)\n",
pSrc->drawable.width, pSrc->drawable.height));
atis->scratch_next = (atis->scratch_next +
atis->kaa.offscreenByteAlign - 1) &
~(atis->kaa.offscreenByteAlign - 1);
if (atis->scratch_next + size > atis->scratch_offset +
atis->scratch_size) {
/* Only sync when we've used all of the scratch area. */
@ -673,6 +677,7 @@ ATIDrawInit(ScreenPtr pScreen)
KdScreenPriv(pScreen);
ATIScreenInfo(pScreenPriv);
ATICardInfo(pScreenPriv);
int align_scratch;
ErrorF("Screen: %d/%d depth/bpp\n", pScreenPriv->screen->fb[0].depth,
pScreenPriv->screen->fb[0].bitsPerPixel);
@ -706,6 +711,13 @@ ATIDrawInit(ScreenPtr pScreen)
atis->kaa.offscreenPitch = 32;
}
/* Align the scratch area to what offscreenByteAlign requires. */
align_scratch = (atis->scratch_offset +
atis->kaa.offscreenByteAlign - 1) &
~(atis->kaa.offscreenByteAlign - 1);
atis->scratch_size -= align_scratch - atis->scratch_offset;
atis->scratch_offset = align_scratch;
if (!kaaDrawInit(pScreen, &atis->kaa))
return FALSE;