diff options
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 0c5fd326a5d..1bd617fa147 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -1119,9 +1119,20 @@ static void declare_system_value( value = get_sample_id(radeon_bld); break; - case TGSI_SEMANTIC_SAMPLEPOS: - value = load_sample_position(radeon_bld, get_sample_id(radeon_bld)); + case TGSI_SEMANTIC_SAMPLEPOS: { + LLVMValueRef pos[4] = { + LLVMGetParam(radeon_bld->main_fn, SI_PARAM_POS_X_FLOAT), + LLVMGetParam(radeon_bld->main_fn, SI_PARAM_POS_Y_FLOAT), + lp_build_const_float(gallivm, 0), + lp_build_const_float(gallivm, 0) + }; + pos[0] = lp_build_emit_llvm_unary(&radeon_bld->soa.bld_base, + TGSI_OPCODE_FRC, pos[0]); + pos[1] = lp_build_emit_llvm_unary(&radeon_bld->soa.bld_base, + TGSI_OPCODE_FRC, pos[1]); + value = lp_build_gather_values(gallivm, pos, 4); break; + } case TGSI_SEMANTIC_SAMPLEMASK: /* Smoothing isn't MSAA in GL, but it's MSAA in hardware. |