On Fri, Jan 8, 2016 at 3:15 AM, Ilia Mirkin <[email protected]> wrote: > On Thu, Jan 7, 2016 at 8:29 PM, Marek Olšák <[email protected]> wrote: >> From: Marek Olšák <[email protected]> >> >> --- >> src/gallium/docs/source/screen.rst | 5 +++++ >> src/gallium/docs/source/tgsi.rst | 6 ++++-- >> src/gallium/drivers/freedreno/freedreno_screen.c | 2 ++ >> src/gallium/drivers/i915/i915_screen.c | 2 ++ >> src/gallium/drivers/ilo/ilo_screen.c | 2 ++ >> src/gallium/drivers/llvmpipe/lp_screen.c | 2 ++ >> src/gallium/drivers/nouveau/nv30/nv30_screen.c | 2 ++ >> src/gallium/drivers/nouveau/nv50/nv50_screen.c | 2 ++ >> src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 2 ++ >> src/gallium/drivers/r300/r300_screen.c | 2 ++ >> src/gallium/drivers/r600/r600_pipe.c | 2 ++ >> src/gallium/drivers/radeonsi/si_pipe.c | 2 ++ >> src/gallium/drivers/softpipe/sp_screen.c | 2 ++ >> src/gallium/drivers/svga/svga_screen.c | 2 ++ >> src/gallium/drivers/vc4/vc4_screen.c | 2 ++ >> src/gallium/drivers/virgl/virgl_screen.c | 2 ++ >> src/gallium/include/pipe/p_defines.h | 2 ++ >> 17 files changed, 39 insertions(+), 2 deletions(-) >> >> diff --git a/src/gallium/docs/source/screen.rst >> b/src/gallium/docs/source/screen.rst >> index 30d497f..ca67bda 100644 >> --- a/src/gallium/docs/source/screen.rst >> +++ b/src/gallium/docs/source/screen.rst >> @@ -287,6 +287,11 @@ The integer capabilities: >> supported in vertex shaders. >> * ``PIPE_CAP_TGSI_PACK_HALF_FLOAT``: Whether the ``UP2H`` and ``PK2H`` >> TGSI opcodes are supported. >> +* ``PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL``: If state trackers should use >> + a system value for the POSITION fragment shader input. >> +* ``PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL``: If state trackers should use >> + a system value for the FACE fragment shader input. >> + Also, the FACE system value is integer, not float. > > Do you mean boolean (i.e. -1/0), or -1/1, or 0/1, or something else? > As is, FACE is supposed to be -1.0 or 1.0. NVIDIA hardware outputs -1 > and 0 (i.e. boolean).
The values should be: front face = 0xffffffff back face = 0x0 It will be documented in tgsi.rst. Marek _______________________________________________ mesa-dev mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-dev
