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r600/sfn: use fine gradient evaluation for interpolate_at_offset 

Also pass in the interpolator x component (because the TGSI does this too)

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6879>
This commit is contained in:
Gert Wollny 2020-09-25 14:45:43 +02:00 committed by Marge Bot
parent 8540523610
commit a8435f70ed
1 changed files with 3 additions and 1 deletions
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4
src/gallium/drivers/r600/sfn/sfn_shader_fragment.cpp
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@ -481,7 +481,7 @@ bool FragmentShaderFromNir::emit_interp_deref_at_offset(nir_intrinsic_instr* ins
auto& io = m_shaderio.input(var->data.driver_location, var->data.location_frac);
auto interpolator = m_interpolator[io.ij_index()];
PValue dummy(new GPRValue(interpolator.i->sel(), 7));
PValue dummy(new GPRValue(interpolator.i->sel(), 0));
GPRVector interp({interpolator.j, interpolator.i, dummy, dummy});
@ -491,6 +491,7 @@ bool FragmentShaderFromNir::emit_interp_deref_at_offset(nir_intrinsic_instr* ins
getgradh->set_flag(TexInstruction::y_unnormalized);
getgradh->set_flag(TexInstruction::z_unnormalized);
getgradh->set_flag(TexInstruction::w_unnormalized);
getgradh->set_flag(TexInstruction::grad_fine);
emit_instruction(getgradh);
auto getgradv = new TexInstruction(TexInstruction::get_gradient_v, help, interp, 0, 0, PValue());
@ -499,6 +500,7 @@ bool FragmentShaderFromNir::emit_interp_deref_at_offset(nir_intrinsic_instr* ins
getgradv->set_flag(TexInstruction::y_unnormalized);
getgradv->set_flag(TexInstruction::z_unnormalized);
getgradv->set_flag(TexInstruction::w_unnormalized);
getgradv->set_flag(TexInstruction::grad_fine);
emit_instruction(getgradv);
PValue ofs_x = from_nir(instr->src[1], 0);