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r600g,radeonsi: if discarding whole buffer range, discard whole resource instead

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Also set the unsynchronized flag if the whole resource was discarded
to avoid doing buffer-busy checks again.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák 2014-01-13 13:10:06 +01:00
parent ee0dc659c8
commit 5dfb10b2f5
1 changed files with 8 additions and 0 deletions
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8
src/gallium/drivers/radeon/r600_buffer_common.c
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@ -205,6 +205,12 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
}
/* If discarding the entire range, discard the whole resource instead. */
if (usage & PIPE_TRANSFER_DISCARD_RANGE &&
box->x == 0 && box->width == resource->width0) {
usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
}
if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE &&
!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
assert(usage & PIPE_TRANSFER_WRITE);
@ -214,6 +220,8 @@ static void *r600_buffer_transfer_map(struct pipe_context *ctx,
rctx->ws->buffer_is_busy(rbuffer->buf, RADEON_USAGE_READWRITE)) {
rctx->invalidate_buffer(&rctx->b, &rbuffer->b.b);
}
/* At this point, the buffer is always idle. */
usage |= PIPE_TRANSFER_UNSYNCHRONIZED;
}
else if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
!(usage & PIPE_TRANSFER_UNSYNCHRONIZED) &&