[PATCH vkd3d 3/6] vkd3d-shader/hlsl: Write an empty SHDR section.

[Zebediah Figura]

Signed-off-by: Zebediah Figura <zfigura at codeweavers.com>
---
 libs/vkd3d-shader/hlsl_sm4.c | 34 +++++++++++++++++++++++++++++++++-
 libs/vkd3d-shader/sm4.h      |  1 +
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/libs/vkd3d-shader/hlsl_sm4.c b/libs/vkd3d-shader/hlsl_sm4.c
index 977b8395..c9a427d8 100644
--- a/libs/vkd3d-shader/hlsl_sm4.c
+++ b/libs/vkd3d-shader/hlsl_sm4.c
@@ -20,12 +20,44 @@
 
 #include "hlsl.h"
 #include <stdio.h>
+#include "sm4.h"
+
+static void write_sm4_shdr(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc)
+{
+    const struct hlsl_profile_info *profile = ctx->profile;
+    struct vkd3d_bytecode_buffer buffer = {0};
+
+    static const uint16_t shader_types[VKD3D_SHADER_TYPE_COUNT] =
+    {
+        VKD3D_SM4_PS,
+        VKD3D_SM4_VS,
+        VKD3D_SM4_GS,
+        VKD3D_SM5_HS,
+        VKD3D_SM5_DS,
+        VKD3D_SM5_CS,
+        0, /* EFFECT */
+        0, /* TEXTURE */
+        VKD3D_SM4_LIB,
+    };
+
+    put_u32(&buffer, (shader_types[profile->type] << 16) | (profile->major_version << 4) | profile->minor_version);
+    put_u32(&buffer, 0); /* FIXME: instruction token count */
+
+    dxbc_writer_add_section(dxbc, TAG_SHDR, buffer.data, buffer.size);
+}
 
 int hlsl_sm4_write(struct hlsl_ctx *ctx, struct hlsl_ir_function_decl *entry_func, struct vkd3d_shader_code *out)
 {
     struct dxbc_writer dxbc;
+    size_t i;
+    int ret;
 
     dxbc_writer_init(&dxbc);
 
-    return dxbc_writer_write(&dxbc, out);
+    write_sm4_shdr(ctx, &dxbc);
+
+    ret = dxbc_writer_write(&dxbc, out);
+    for (i = 0; i < dxbc.section_count; ++i)
+        vkd3d_free((void *)dxbc.sections[i].data);
+    return ret;
 }
diff --git a/libs/vkd3d-shader/sm4.h b/libs/vkd3d-shader/sm4.h
index 5622d6df..b4dd1632 100644
--- a/libs/vkd3d-shader/sm4.h
+++ b/libs/vkd3d-shader/sm4.h
@@ -25,6 +25,7 @@
 #define VKD3D_SM5_HS  0x0003u
 #define VKD3D_SM5_DS  0x0004u
 #define VKD3D_SM5_CS  0x0005u
+#define VKD3D_SM4_LIB 0xfff0u
 
 #define VKD3D_SM4_INSTRUCTION_MODIFIER        (0x1u << 31)
 
-- 
2.32.0