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vkd3d-shader/hlsl: Always align section sizes.

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This fixes disassembly using native D3DDisassemble() of shaders generated with vkd3d-shader.

Fixes: d6d9aab31c
This commit is contained in:
Zebediah Figura 2023-04-05 17:01:52 -05:00 committed by Alexandre Julliard
parent a60c47ff39
commit 616c4bf51f
Notes: Alexandre Julliard 2023-04-06 22:23:59 +02:00 
Approved-by: Henri Verbeet (@hverbeet)
Approved-by: Alexandre Julliard (@julliard)
Merge-Request: https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/151
1 changed files with 13 additions and 3 deletions
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16
libs/vkd3d-shader/hlsl_sm4.c
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@ -147,6 +147,16 @@ bool hlsl_sm4_usage_from_semantic(struct hlsl_ctx *ctx, const struct hlsl_semant
return true;
}
static void add_section(struct dxbc_writer *dxbc, uint32_t tag, struct vkd3d_bytecode_buffer *buffer)
{
/* Native D3DDisassemble() expects at least the sizes of the ISGN and OSGN
* sections to be aligned. Without this, the sections themselves will be
* aligned, but their reported sizes won't. */
size_t size = bytecode_align(buffer);
dxbc_writer_add_section(dxbc, tag, buffer->data, size);
}
static void write_sm4_signature(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc, bool output)
{
struct vkd3d_bytecode_buffer buffer = {0};
@ -252,7 +262,7 @@ static void write_sm4_signature(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc,
set_u32(&buffer, count_position, i);
dxbc_writer_add_section(dxbc, output ? TAG_OSGN : TAG_ISGN, buffer.data, buffer.size);
add_section(dxbc, output ? TAG_OSGN : TAG_ISGN, &buffer);
}
static const struct hlsl_type *get_array_type(const struct hlsl_type *type)
@ -745,7 +755,7 @@ static void write_sm4_rdef(struct hlsl_ctx *ctx, struct dxbc_writer *dxbc)
creator_offset = put_string(&buffer, vkd3d_shader_get_version(NULL, NULL));
set_u32(&buffer, creator_position, creator_offset);
dxbc_writer_add_section(dxbc, TAG_RDEF, buffer.data, buffer.size);
add_section(dxbc, TAG_RDEF, &buffer);
vkd3d_free(extern_resources);
}
@ -2502,7 +2512,7 @@ static void write_sm4_shdr(struct hlsl_ctx *ctx,
set_u32(&buffer, token_count_position, bytecode_get_size(&buffer) / sizeof(uint32_t));
dxbc_writer_add_section(dxbc, TAG_SHDR, buffer.data, buffer.size);
add_section(dxbc, TAG_SHDR, &buffer);
vkd3d_free(extern_resources);
}