Zebediah Figura : vkd3d-shader: Write SM1 constant instructions.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: cd21ba703b02ac37fbebede09decb542f2f48c93
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=cd21ba703b02ac37fbebede09decb542f2f48c93

Author: Zebediah Figura <zfigura at codeweavers.com>
Date:   Tue May 18 15:55:21 2021 -0500

vkd3d-shader: Write SM1 constant instructions.

Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet 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_codegen.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/libs/vkd3d-shader/hlsl_codegen.c b/libs/vkd3d-shader/hlsl_codegen.c
index 05aea21..f6628a2 100644
--- a/libs/vkd3d-shader/hlsl_codegen.c
+++ b/libs/vkd3d-shader/hlsl_codegen.c
@@ -1663,6 +1663,29 @@ static void write_sm1_semantic_dcls(struct hlsl_ctx *ctx, struct bytecode_buffer
     }
 }
 
+static void write_sm1_constant(struct hlsl_ctx *ctx, struct bytecode_buffer *buffer, const struct hlsl_ir_node *instr)
+{
+    const struct hlsl_ir_constant *constant = hlsl_ir_constant(instr);
+    struct sm1_instruction sm1_instr =
+    {
+        .opcode = D3DSIO_MOV,
+
+        .dst.type = D3DSPR_TEMP,
+        .dst.reg = instr->reg.id,
+        .dst.writemask = instr->reg.writemask,
+        .has_dst = 1,
+
+        .srcs[0].type = D3DSPR_CONST,
+        .srcs[0].reg = constant->reg.id,
+        .srcs[0].swizzle = swizzle_from_writemask(constant->reg.writemask),
+        .src_count = 1,
+    };
+
+    assert(instr->reg.allocated);
+    assert(constant->reg.allocated);
+    write_sm1_instruction(ctx, buffer, &sm1_instr);
+}
+
 static void write_sm1_load(struct hlsl_ctx *ctx, struct bytecode_buffer *buffer, const struct hlsl_ir_node *instr)
 {
     const struct hlsl_ir_load *load = hlsl_ir_load(instr);
@@ -1768,6 +1791,10 @@ static void write_sm1_instructions(struct hlsl_ctx *ctx, struct bytecode_buffer
 
         switch (instr->type)
         {
+            case HLSL_IR_CONSTANT:
+                write_sm1_constant(ctx, buffer, instr);
+                break;
+
             case HLSL_IR_LOAD:
                 write_sm1_load(ctx, buffer, instr);
                 break;