From 6eb2a7fbafd49e75b6cbbee57f23dda63eff73ef Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 7 Jul 2010 15:20:19 +0200 Subject: r300g: implement hyper-z support. (v4) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This implements fast Z clear, Z compression, and HiZ support for r300->r500 GPUs. It also allows cbzb clears when fast Z clears are being used for the ZB. It requires a kernel with hyper-z support. Thanks to Marek Olšák , who started this off, and Alex Deucher at AMD for providing lots of hints. v2: squashed zmask ram size fix] squashed r300g/blitter: fix Z readback when compressed] v3: rebase around texture changes in master - .1 fix more bits v4: migrated to using u_mm in r300_texture to manage hiz/zmask rams consistently disabled HiZ when using OQ flush z-cache before turning hyper-z off update hyper-z state on dsa state change store depthclearvalue across cbzb clears and replace it afterwards. Signed-off-by: Dave Airlie --- src/gallium/drivers/r300/r300_flush.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/gallium/drivers/r300/r300_flush.c') diff --git a/src/gallium/drivers/r300/r300_flush.c b/src/gallium/drivers/r300/r300_flush.c index fe182b6615..7fed9b5d07 100644 --- a/src/gallium/drivers/r300/r300_flush.c +++ b/src/gallium/drivers/r300/r300_flush.c @@ -44,7 +44,8 @@ static void r300_flush(struct pipe_context* pipe, u_upload_flush(r300->upload_ib); if (r300->dirty_hw) { - r300_emit_hyperz_end(r300); + if (r300->rws->get_value(r300->rws, R300_CAN_HYPERZ)) + r300_emit_hyperz_end(r300); r300_emit_query_end(r300); r300->flush_counter++; -- cgit v1.2.3