From 615baedc778039a2dcd08bbc1b3006c9e5a111dc Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Sun, 26 Feb 2012 18:48:42 +0100 Subject: [PATCH] gallium/util: set correct usage flags in u_default_transfer_inline_write The DISCARD flags should improve performance in drivers which handle them. --- src/gallium/auxiliary/util/u_transfer.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/gallium/auxiliary/util/u_transfer.c b/src/gallium/auxiliary/util/u_transfer.c index 7e72a59ee00..1fa8d945982 100644 --- a/src/gallium/auxiliary/util/u_transfer.c +++ b/src/gallium/auxiliary/util/u_transfer.c @@ -21,6 +21,18 @@ void u_default_transfer_inline_write( struct pipe_context *pipe, const uint8_t *src_data = data; unsigned i; + assert(!(usage & PIPE_TRANSFER_READ)); + + /* the write flag is implicit by the nature of transfer_inline_write */ + usage |= PIPE_TRANSFER_WRITE; + + /* transfer_inline_write implicitly discards the rewritten buffer range */ + if (box->x == 0 && box->width == resource->width0) { + usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE; + } else { + usage |= PIPE_TRANSFER_DISCARD_RANGE; + } + transfer = pipe->get_transfer(pipe, resource, level, -- 2.30.2