From: Marek Olšák <[email protected]>
Also set the unsynchronized flag if the whole resource was discarded
to avoid doing buffer-busy checks again.
---
src/gallium/drivers/radeon/r600_buffer_common.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/gallium/drivers/radeon/r600_buffer_common.c
b/src/gallium/drivers/radeon/r600_buffer_common.c
index ac5fbcc..66e9d57 100644
--- a/src/gallium/drivers/radeon/r600_buffer_common.c
+++ b/src/gallium/drivers/radeon/r600_buffer_common.c
@@ -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) &&
--
1.8.3.2
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