diff options
author | Antia Puentes <[email protected]> | 2016-04-15 11:32:46 +0200 |
---|---|---|
committer | Alejandro PiƱeiro <[email protected]> | 2016-05-17 07:34:40 +0200 |
commit | 8b0a334b5ef0fb324c61f5757989d715f4b531f6 (patch) | |
tree | 1b94226b33c04f9861a64bf92cbbd8a24b53f3bb /src/glx/indirect_window_pos.c | |
parent | 71150b73c81a58dc06057ced561d10332aecc803 (diff) |
i965: Configure how to store *64*PASSTHRU vertex components
From the Broadwell specification, structure VERTEX_ELEMENT_STATE
description:
"When SourceElementFormat is set to one of the *64*_PASSTHRU
formats, 64-bit components are stored in the URB without any
conversion. In this case, vertex elements must be written as 128
or 256 bits, with VFCOMP_STORE_0 being used to pad the output
as required. E.g., if R64_PASSTHRU is used to copy a 64-bit Red component into
the URB, Component 1 must be specified as VFCOMP_STORE_0 (with
Components 2,3 set to VFCOMP_NOSTORE) in order to output a 128-bit
vertex element, or Components 1-3 must be specified as VFCOMP_STORE_0
in order to output a 256-bit vertex element. Likewise, use of
R64G64B64_PASSTHRU requires Component 3 to be specified as VFCOMP_STORE_0
in order to output a 256-bit vertex element."
Uses 128-bits to write double and dvec2 vertex elements, and 256-bits for
dvec3 and dvec4 vertex elements.
Signed-off-by: Juan A. Suarez Romero <[email protected]>
Signed-off-by: Antia Puentes <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/glx/indirect_window_pos.c')
0 files changed, 0 insertions, 0 deletions