Zebediah Figura : vkd3d-shader/hlsl: Split matrices into multiple variables in prepend_input_copy().

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: ea38ecc4ffb0541fe4b46cddc9af31f66e18f34b
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=ea38ecc4ffb0541fe4b46cddc9af31f66e18f34b

Author: Zebediah Figura <zfigura at codeweavers.com>
Date:   Tue Jun  7 16:29:11 2022 -0500

vkd3d-shader/hlsl: Split matrices into multiple variables in prepend_input_copy().

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

---

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

diff --git a/libs/vkd3d-shader/hlsl_codegen.c b/libs/vkd3d-shader/hlsl_codegen.c
index b4fcfd27..6f524744 100644
--- a/libs/vkd3d-shader/hlsl_codegen.c
+++ b/libs/vkd3d-shader/hlsl_codegen.c
@@ -84,6 +84,21 @@ static void prepend_input_copy(struct hlsl_ctx *ctx, struct list *instrs, struct
     struct hlsl_ir_load *load;
     struct hlsl_ir_var *input;
 
+    if (type->type == HLSL_CLASS_MATRIX)
+    {
+        struct hlsl_type *vector_type = hlsl_get_vector_type(ctx, type->base_type, minor_size(type));
+        struct hlsl_semantic vector_semantic = *semantic;
+        unsigned int i;
+
+        for (i = 0; i < major_size(type); ++i)
+        {
+            prepend_input_copy(ctx, instrs, var, vector_type, 4 * i, modifiers, &vector_semantic);
+            ++vector_semantic.index;
+        }
+
+        return;
+    }
+
     if (!(name = hlsl_get_string_buffer(ctx)))
         return;
     vkd3d_string_buffer_printf(name, "<input-%s%u>", semantic->name, semantic->index);