diff options
| author | Matt Turner <[email protected]> | 2016-05-04 15:10:25 -0700 |
|---|---|---|
| committer | Matt Turner <[email protected]> | 2016-05-19 17:27:49 -0700 |
| commit | 07353599e07529e98494057f556b9d96c1df5cfd (patch) | |
| tree | 51fac5edb651b49ed9c99cd741f829a46b52f909 /src/mesa/drivers | |
| parent | 8bf549389914e94e4d075c3e2a161d53d3ed9675 (diff) | |
i965/fs: Add and use get_nir_src_imm().
The next patch wants to inspect the LOD argument and do something
different if it's 0.0f. But at that point we've emitted a MOV for it and
we just have a register to look at.
Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs.h | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 22 |
2 files changed, 19 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h index ac270cdefab..236858c2c0d 100644 --- a/src/mesa/drivers/dri/i965/brw_fs.h +++ b/src/mesa/drivers/dri/i965/brw_fs.h @@ -257,6 +257,7 @@ public: void nir_emit_jump(const brw::fs_builder &bld, nir_jump_instr *instr); fs_reg get_nir_src(nir_src src); + fs_reg get_nir_src_imm(nir_src src); fs_reg get_nir_dest(nir_dest dest); fs_reg get_nir_image_deref(const nir_deref_var *deref); fs_reg get_indirect_offset(nir_intrinsic_instr *instr); diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp index ebcc92a6753..203ebd2a6ea 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp @@ -1470,6 +1470,16 @@ fs_visitor::get_nir_src(nir_src src) return retype(reg, BRW_REGISTER_TYPE_D); } +/** + * Return an IMM for constants; otherwise call get_nir_src() as normal. + */ +fs_reg +fs_visitor::get_nir_src_imm(nir_src src) +{ + nir_const_value *val = nir_src_as_const_value(src); + return val ? fs_reg(brw_imm_d(val->i32[0])) : get_nir_src(src); +} + fs_reg fs_visitor::get_nir_dest(nir_dest dest) { @@ -4008,7 +4018,8 @@ fs_visitor::nir_emit_texture(const fs_builder &bld, nir_tex_instr *instr) fs_reg src = get_nir_src(instr->src[i].src); switch (instr->src[i].src_type) { case nir_tex_src_bias: - srcs[TEX_LOGICAL_SRC_LOD] = retype(src, BRW_REGISTER_TYPE_F); + srcs[TEX_LOGICAL_SRC_LOD] = + retype(get_nir_src_imm(instr->src[i].src), BRW_REGISTER_TYPE_F); break; case nir_tex_src_comparitor: srcs[TEX_LOGICAL_SRC_SHADOW_C] = retype(src, BRW_REGISTER_TYPE_F); @@ -4036,13 +4047,16 @@ fs_visitor::nir_emit_texture(const fs_builder &bld, nir_tex_instr *instr) case nir_tex_src_lod: switch (instr->op) { case nir_texop_txs: - srcs[TEX_LOGICAL_SRC_LOD] = retype(src, BRW_REGISTER_TYPE_UD); + srcs[TEX_LOGICAL_SRC_LOD] = + retype(get_nir_src_imm(instr->src[i].src), BRW_REGISTER_TYPE_UD); break; case nir_texop_txf: - srcs[TEX_LOGICAL_SRC_LOD] = retype(src, BRW_REGISTER_TYPE_D); + srcs[TEX_LOGICAL_SRC_LOD] = + retype(get_nir_src_imm(instr->src[i].src), BRW_REGISTER_TYPE_D); break; default: - srcs[TEX_LOGICAL_SRC_LOD] = retype(src, BRW_REGISTER_TYPE_F); + srcs[TEX_LOGICAL_SRC_LOD] = + retype(get_nir_src_imm(instr->src[i].src), BRW_REGISTER_TYPE_F); break; } break; |