From 1d9f47325b72ac40faf8bd8176cfcb33fc070ae3 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marcin=20=C5=9Alusarz?= Date: Thu, 9 Dec 2021 16:50:18 +0100 Subject: [PATCH] intel/compiler: handle gl_[Clip|Cull]Distance from mesh in fragment shaders MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Marcin Ślusarz Reviewed-by: Caio Oliveira Part-of: --- src/intel/compiler/brw_fs.cpp | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp index 1af3d702a87..15af952c82e 100644 --- a/src/intel/compiler/brw_fs.cpp +++ b/src/intel/compiler/brw_fs.cpp @@ -1807,8 +1807,24 @@ calculate_urb_setup(const struct intel_device_info *devinfo, prog_data->num_per_primitive_inputs = urb_next; } + const uint64_t clip_dist_bits = VARYING_BIT_CLIP_DIST0 | + VARYING_BIT_CLIP_DIST1; + uint64_t unique_fs_attrs = inputs_read & BRW_FS_VARYING_INPUT_MASK; + if (inputs_read & clip_dist_bits) { + assert(mue_map->per_vertex_header_size_dw > 8); + unique_fs_attrs &= ~clip_dist_bits; + } + + /* In Mesh, CLIP_DIST slots are always at the beginning, because + * they come from MUE Vertex Header, not Per-Vertex Attributes. + */ + if (inputs_read & clip_dist_bits) { + prog_data->urb_setup[VARYING_SLOT_CLIP_DIST0] = urb_next++; + prog_data->urb_setup[VARYING_SLOT_CLIP_DIST1] = urb_next++; + } + /* Per-Vertex attributes are laid out ordered. Because we always link * Mesh and Fragment shaders, the which slots are written and read by * each of them will match. */