Mesa (master): nir: Add a helper for determining the type of a texture source
Jason Ekstrand
jekstrand at kemper.freedesktop.org
Fri Jul 22 23:20:51 UTC 2016
Module: Mesa
Branch: master
Commit: 09135cd55a05908a68e173e37e0f5c375f341776
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=09135cd55a05908a68e173e37e0f5c375f341776
Author: Jason Ekstrand <jason.ekstrand at intel.com>
Date: Tue May 3 20:18:50 2016 -0700
nir: Add a helper for determining the type of a texture source
Signed-off-by: Jason Ekstrand <jason at jlekstrand.net>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Cc: "12.0" <mesa-dev at lists.freedesktop.org>
---
src/compiler/nir/nir.h | 44 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index a80f9c9..5a69e78 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -1246,6 +1246,50 @@ nir_tex_instr_is_query(nir_tex_instr *instr)
}
}
+static inline nir_alu_type
+nir_tex_instr_src_type(nir_tex_instr *instr, unsigned src)
+{
+ switch (instr->src[src].src_type) {
+ case nir_tex_src_coord:
+ switch (instr->op) {
+ case nir_texop_txf:
+ case nir_texop_txf_ms:
+ case nir_texop_txf_ms_mcs:
+ case nir_texop_samples_identical:
+ return nir_type_int;
+
+ default:
+ return nir_type_float;
+ }
+
+ case nir_tex_src_lod:
+ switch (instr->op) {
+ case nir_texop_txs:
+ case nir_texop_txf:
+ return nir_type_int;
+
+ default:
+ return nir_type_float;
+ }
+
+ case nir_tex_src_projector:
+ case nir_tex_src_comparitor:
+ case nir_tex_src_bias:
+ case nir_tex_src_ddx:
+ case nir_tex_src_ddy:
+ return nir_type_float;
+
+ case nir_tex_src_offset:
+ case nir_tex_src_ms_index:
+ case nir_tex_src_texture_offset:
+ case nir_tex_src_sampler_offset:
+ return nir_type_int;
+
+ default:
+ unreachable("Invalid texture source type");
+ }
+}
+
static inline unsigned
nir_tex_instr_src_size(nir_tex_instr *instr, unsigned src)
{
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