[Mesa-dev] [PATCH v4 11/44] i965: Support for 16-bit base types in helper functions

[Jose Maria Casanova Crespo]

v2: Fixed calculation of scalar size for 16-bit types. (Jason Ekstrand)

Signed-off-by: Jose Maria Casanova Crespo <jmcasanova at igalia.com>
Signed-off-by: Eduardo Lima <elima at igalia.com>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
---
 src/intel/compiler/brw_fs.cpp     |  4 ++++
 src/intel/compiler/brw_nir.c      | 16 ++++++++++++++++
 src/intel/compiler/brw_shader.cpp |  6 ++++++
 3 files changed, 26 insertions(+)

diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 6772c0d5a5..6cdd2bd9f3 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -454,6 +454,10 @@ type_size_scalar(const struct glsl_type *type)
    case GLSL_TYPE_FLOAT:
    case GLSL_TYPE_BOOL:
       return type->components();
+   case GLSL_TYPE_UINT16:
+   case GLSL_TYPE_INT16:
+   case GLSL_TYPE_FLOAT16:
+      return DIV_ROUND_UP(type->components(), 2);
    case GLSL_TYPE_DOUBLE:
    case GLSL_TYPE_UINT64:
    case GLSL_TYPE_INT64:
diff --git a/src/intel/compiler/brw_nir.c b/src/intel/compiler/brw_nir.c
index 8f3f77f89a..cca4b45ae6 100644
--- a/src/intel/compiler/brw_nir.c
+++ b/src/intel/compiler/brw_nir.c
@@ -843,12 +843,18 @@ brw_type_for_nir_type(const struct gen_device_info *devinfo, nir_alu_type type)
    case nir_type_float:
    case nir_type_float32:
       return BRW_REGISTER_TYPE_F;
+   case nir_type_float16:
+      return BRW_REGISTER_TYPE_HF;
    case nir_type_float64:
       return BRW_REGISTER_TYPE_DF;
    case nir_type_int64:
       return devinfo->gen < 8 ? BRW_REGISTER_TYPE_DF : BRW_REGISTER_TYPE_Q;
    case nir_type_uint64:
       return devinfo->gen < 8 ? BRW_REGISTER_TYPE_DF : BRW_REGISTER_TYPE_UQ;
+   case nir_type_int16:
+      return BRW_REGISTER_TYPE_W;
+   case nir_type_uint16:
+      return BRW_REGISTER_TYPE_UW;
    default:
       unreachable("unknown type");
    }
@@ -867,6 +873,9 @@ brw_glsl_base_type_for_nir_type(nir_alu_type type)
    case nir_type_float32:
       return GLSL_TYPE_FLOAT;
 
+   case nir_type_float16:
+      return GLSL_TYPE_FLOAT16;
+
    case nir_type_float64:
       return GLSL_TYPE_DOUBLE;
 
@@ -878,6 +887,13 @@ brw_glsl_base_type_for_nir_type(nir_alu_type type)
    case nir_type_uint32:
       return GLSL_TYPE_UINT;
 
+   case nir_type_int16:
+      return GLSL_TYPE_INT16;
+
+   case nir_type_uint16:
+      return GLSL_TYPE_UINT16;
+
+
    default:
       unreachable("bad type");
    }
diff --git a/src/intel/compiler/brw_shader.cpp b/src/intel/compiler/brw_shader.cpp
index ba61481a0a..aa9e5f3d28 100644
--- a/src/intel/compiler/brw_shader.cpp
+++ b/src/intel/compiler/brw_shader.cpp
@@ -34,14 +34,20 @@ enum brw_reg_type
 brw_type_for_base_type(const struct glsl_type *type)
 {
    switch (type->base_type) {
+   case GLSL_TYPE_FLOAT16:
+      return BRW_REGISTER_TYPE_HF;
    case GLSL_TYPE_FLOAT:
       return BRW_REGISTER_TYPE_F;
    case GLSL_TYPE_INT:
    case GLSL_TYPE_BOOL:
    case GLSL_TYPE_SUBROUTINE:
       return BRW_REGISTER_TYPE_D;
+   case GLSL_TYPE_INT16:
+      return BRW_REGISTER_TYPE_W;
    case GLSL_TYPE_UINT:
       return BRW_REGISTER_TYPE_UD;
+   case GLSL_TYPE_UINT16:
+      return BRW_REGISTER_TYPE_UW;
    case GLSL_TYPE_ARRAY:
       return brw_type_for_base_type(type->fields.array);
    case GLSL_TYPE_STRUCT:
-- 
2.14.3