diff options
| -rw-r--r-- | src/gallium/drivers/radeonsi/radeonsi_shader.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c index 704f859efd7..7922928043f 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_shader.c +++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c @@ -263,6 +263,14 @@ static void declare_input_fs( build_intrinsic(base->gallivm->builder, "llvm.SI.fs.read.pos", input_type, args, 1, LLVMReadNoneAttribute); + + if (chan == 3) + /* RCP for fragcoord.w */ + si_shader_ctx->radeon_bld.inputs[soa_index] = + LLVMBuildFDiv(gallivm->builder, + lp_build_const_float(gallivm, 1.0f), + si_shader_ctx->radeon_bld.inputs[soa_index], + ""); } return; } |