On Jul 18, 2016 10:11 PM, "Chris Forbes" <<a href="mailto:chrisf@ijw.co.nz">chrisf@ijw.co.nz</a>> wrote: > > I remember arguing about this when it got added -- tradeoff was payload size/register pressure vs needing to call out to this unit, if centroid barycentric coords weren't required for anything else? It does seem fairly pointless, though. > > For the series:- > > Reviewed-by: Chris Forbes <<a href="mailto:chrisforbes@google.com">chrisforbes@google.com</a>> I'd like to chip in before you get too excited and push. I'll take a proper look tomorrow. > On Tue, Jul 19, 2016 at 8:26 AM, Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>> wrote: >> >> We no longer use this message. As far as I can tell, it's fairly >> useless - the equivalent information is provided in the payload. >> >> Signed-off-by: Kenneth Graunke <<a href="mailto:kenneth@whitecape.org">kenneth@whitecape.org</a>> >> --- >> src/mesa/drivers/dri/i965/brw_defines.h | 1 - >> src/mesa/drivers/dri/i965/brw_fs.cpp | 2 -- >> src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 5 ----- >> src/mesa/drivers/dri/i965/brw_shader.cpp | 2 -- >> 4 files changed, 10 deletions(-) >> >> diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h >> index b5a259e..2814fa7 100644 >> --- a/src/mesa/drivers/dri/i965/brw_defines.h >> +++ b/src/mesa/drivers/dri/i965/brw_defines.h >> @@ -1120,7 +1120,6 @@ enum opcode { >> FS_OPCODE_UNPACK_HALF_2x16_SPLIT_X, >> FS_OPCODE_UNPACK_HALF_2x16_SPLIT_Y, >> FS_OPCODE_PLACEHOLDER_HALT, >> - FS_OPCODE_INTERPOLATE_AT_CENTROID, >> FS_OPCODE_INTERPOLATE_AT_SAMPLE, >> FS_OPCODE_INTERPOLATE_AT_SHARED_OFFSET, >> FS_OPCODE_INTERPOLATE_AT_PER_SLOT_OFFSET, >> diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp >> index 06007fe..120d6dd 100644 >> --- a/src/mesa/drivers/dri/i965/brw_fs.cpp >> +++ b/src/mesa/drivers/dri/i965/brw_fs.cpp >> @@ -250,7 +250,6 @@ fs_inst::is_send_from_grf() const >> switch (opcode) { >> case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_GEN7: >> case SHADER_OPCODE_SHADER_TIME_ADD: >> - case FS_OPCODE_INTERPOLATE_AT_CENTROID: >> case FS_OPCODE_INTERPOLATE_AT_SAMPLE: >> case FS_OPCODE_INTERPOLATE_AT_SHARED_OFFSET: >> case FS_OPCODE_INTERPOLATE_AT_PER_SLOT_OFFSET: >> @@ -4785,7 +4784,6 @@ get_lowered_simd_width(const struct brw_device_info *devinfo, >> case FS_OPCODE_PACK_HALF_2x16_SPLIT: >> case FS_OPCODE_UNPACK_HALF_2x16_SPLIT_X: >> case FS_OPCODE_UNPACK_HALF_2x16_SPLIT_Y: >> - case FS_OPCODE_INTERPOLATE_AT_CENTROID: >> case FS_OPCODE_INTERPOLATE_AT_SAMPLE: >> case FS_OPCODE_INTERPOLATE_AT_SHARED_OFFSET: >> case FS_OPCODE_INTERPOLATE_AT_PER_SLOT_OFFSET: >> diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp >> index 1e9c7da..a390184 100644 >> --- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp >> +++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp >> @@ -2054,11 +2054,6 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width) >> } >> break; >> >> - case FS_OPCODE_INTERPOLATE_AT_CENTROID: >> - generate_pixel_interpolator_query(inst, dst, src[0], src[1], >> - GEN7_PIXEL_INTERPOLATOR_LOC_CENTROID); >> - break; >> - >> case FS_OPCODE_INTERPOLATE_AT_SAMPLE: >> generate_pixel_interpolator_query(inst, dst, src[0], src[1], >> GEN7_PIXEL_INTERPOLATOR_LOC_SAMPLE); >> diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp >> index f3b5487..559e44c 100644 >> --- a/src/mesa/drivers/dri/i965/brw_shader.cpp >> +++ b/src/mesa/drivers/dri/i965/brw_shader.cpp >> @@ -367,8 +367,6 @@ brw_instruction_name(const struct brw_device_info *devinfo, enum opcode op) >> case FS_OPCODE_PLACEHOLDER_HALT: >> return "placeholder_halt"; >> >> - case FS_OPCODE_INTERPOLATE_AT_CENTROID: >> - return "interp_centroid"; >> case FS_OPCODE_INTERPOLATE_AT_SAMPLE: >> return "interp_sample"; >> case FS_OPCODE_INTERPOLATE_AT_SHARED_OFFSET: >> -- >> 2.9.0 >> >> _______________________________________________ >> mesa-dev mailing list >> <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> >> <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> > > > > _______________________________________________ > mesa-dev mailing list > <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> > <a href="https://lists.freedesktop.org/mailman/listinfo/mesa-dev">https://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> >