diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/genX_state_upload.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/src/mesa/drivers/dri/i965/genX_state_upload.c b/src/mesa/drivers/dri/i965/genX_state_upload.c index 2a99376e3c2..ecf5a9ae68d 100644 --- a/src/mesa/drivers/dri/i965/genX_state_upload.c +++ b/src/mesa/drivers/dri/i965/genX_state_upload.c @@ -1029,17 +1029,13 @@ genX(calculate_attr_overrides)(const struct brw_context *brw, *point_sprite_enables = 0; - /* If the fragment shader reads VARYING_SLOT_LAYER, then we need to pass in - * the full vertex header. Otherwise, we can program the SF to start - * reading at an offset of 1 (2 varying slots) to skip unnecessary data: - * - VARYING_SLOT_PSIZ and BRW_VARYING_SLOT_NDC on gen4-5 - * - VARYING_SLOT_{PSIZ,LAYER} and VARYING_SLOT_POS on gen6+ - */ - - bool fs_needs_vue_header = fp->info.inputs_read & - (VARYING_BIT_LAYER | VARYING_BIT_VIEWPORT); + int first_slot = + brw_compute_first_urb_slot_required(fp->info.inputs_read, + &brw->vue_map_geom_out); - *urb_entry_read_offset = fs_needs_vue_header ? 0 : 1; + /* Each URB offset packs two varying slots */ + assert(first_slot % 2 == 0); + *urb_entry_read_offset = first_slot / 2; /* From the Ivybridge PRM, Vol 2 Part 1, 3DSTATE_SBE, * description of dw10 Point Sprite Texture Coordinate Enable: |