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sna: Suppress an overwritten fill 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-10-26 17:50:38 +01:00
parent baf78fcddb
commit 389241aa64
1 changed files with 12 additions and 0 deletions
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12
src/sna/sna_blt.c
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@ -1756,6 +1756,18 @@ Bool sna_blt_copy_boxes(struct sna *sna, uint8_t alu,
case 8: break;
}
/* Compare first box against a previous fill */
if (kgem->nbatch >= 6 &&
(alu == GXcopy || alu == GXclear) &&
kgem->reloc[kgem->nreloc-1].target_handle == dst_bo->handle &&
kgem->batch[kgem->nbatch-6] == ((cmd & ~XY_SRC_COPY_BLT_CMD) | XY_COLOR_BLT_CMD) &&
kgem->batch[kgem->nbatch-4] == ((uint32_t)(box->y1 + dst_dy) << 16 | (uint16_t)(box->x1 + dst_dx)) &&
kgem->batch[kgem->nbatch-3] == ((uint32_t)(box->y2 + dst_dy) << 16 | (uint16_t)(box->x2 + dst_dx))) {
DBG(("%s: deleting last fill\n", __FUNCTION__));
kgem->nbatch -= 6;
kgem->nreloc--;
}
kgem_set_mode(kgem, KGEM_BLT);
if (!kgem_check_batch(kgem, 8) ||
!kgem_check_reloc(kgem, 2) ||