diff options
| -rw-r--r-- | src/atimach64accel.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/atimach64accel.c b/src/atimach64accel.c index a0a9e176..272de3db 100644 --- a/src/atimach64accel.c +++ b/src/atimach64accel.c @@ -481,6 +481,18 @@ ATIMach64SubsequentScreenToScreenCopy outf(SRC_WIDTH1, w); outf(DST_Y_X, SetWord(xDst, 1) | SetWord(yDst, 0)); outf(DST_HEIGHT_WIDTH, SetWord(w, 1) | SetWord(h, 0)); + + /* + * On VTB's and later, the engine will randomly not wait for a copy + * operation to commit its results to video memory before starting the next + * one. The probability of such occurrences increases with GUI_WB_FLUSH + * (or GUI_WB_FLUSH_P) setting, bitsPerPixel and/or CRTC clock. This + * would point to some kind of video memory bandwidth problem were it noti + * for the fact that the problem occurs less often (but still occurs) when + * copying larger rectangles. + */ + if ((pATI->Chip >= ATI_CHIP_264VTB) && !pATI->OptionDevel) + ATIMach64Sync(pScreenInfo); } /* |