Zebediah Figura : vkd3d-shader/hlsl: Declare integer semantics as having constant interpolation.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: c9b766924055fc20bcf4eded683897e615fba9f1
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=c9b766924055fc20bcf4eded683897e615fba9f1

Author: Zebediah Figura <zfigura at codeweavers.com>
Date:   Tue Mar 22 16:59:12 2022 -0500

vkd3d-shader/hlsl: Declare integer semantics as having constant interpolation.

Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
Signed-off-by: Giovanni Mascellani <gmascellani at codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Francisco Casas <fcasas at codeweavers.com>
Signed-off-by: Matteo Bruni <mbruni at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 libs/vkd3d-shader/hlsl_sm4.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
index 2dd9cde8..dadb9783 100644
--- a/libs/vkd3d-shader/hlsl_sm4.c
+++ b/libs/vkd3d-shader/hlsl_sm4.c
@@ -25,6 +25,20 @@
 
 static void write_sm4_block(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer *buffer, const struct hlsl_block *block);
 
+static bool type_is_integer(const struct hlsl_type *type)
+{
+    switch (type->base_type)
+    {
+        case HLSL_TYPE_BOOL:
+        case HLSL_TYPE_INT:
+        case HLSL_TYPE_UINT:
+            return true;
+
+        default:
+            return false;
+    }
+}
+
 bool hlsl_sm4_register_from_semantic(struct hlsl_ctx *ctx, const struct hlsl_semantic *semantic,
         bool output, enum vkd3d_sm4_register_type *type, enum vkd3d_sm4_swizzle_type *swizzle_type, bool *has_idx)
 {
@@ -1206,7 +1220,7 @@ static void write_sm4_dcl_semantic(struct hlsl_ctx *ctx, struct vkd3d_bytecode_b
         {
             enum vkd3d_shader_interpolation_mode mode = VKD3DSIM_LINEAR;
 
-            if (var->modifiers & HLSL_STORAGE_NOINTERPOLATION)
+            if ((var->modifiers & HLSL_STORAGE_NOINTERPOLATION) || type_is_integer(var->data_type))
                 mode = VKD3DSIM_CONSTANT;
 
             instr.opcode |= mode << VKD3D_SM4_INTERPOLATION_MODE_SHIFT;
@@ -1419,20 +1433,6 @@ static void write_sm4_sample(struct hlsl_ctx *ctx, struct vkd3d_bytecode_buffer
     write_sm4_instruction(buffer, &instr);
 }
 
-static bool type_is_integer(const struct hlsl_type *type)
-{
-    switch (type->base_type)
-    {
-        case HLSL_TYPE_BOOL:
-        case HLSL_TYPE_INT:
-        case HLSL_TYPE_UINT:
-            return true;
-
-        default:
-            return false;
-    }
-}
-
 static bool type_is_float(const struct hlsl_type *type)
 {
     return type->base_type == HLSL_TYPE_FLOAT || type->base_type == HLSL_TYPE_HALF;